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[wxWidgets.git] / src / richtext / richtextctrl.cpp
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1/////////////////////////////////////////////////////////////////////////////
2// Name: src/richtext/richtextctrl.cpp
3// Purpose: A rich edit control
4// Author: Julian Smart
5// Modified by:
6// Created: 2005-09-30
7// RCS-ID: $Id$
8// Copyright: (c) Julian Smart
9// Licence: wxWindows licence
10/////////////////////////////////////////////////////////////////////////////
11
12// For compilers that support precompilation, includes "wx.h".
13#include "wx/wxprec.h"
14
15#ifdef __BORLANDC__
16 #pragma hdrstop
17#endif
18
19#if wxUSE_RICHTEXT
20
21#include "wx/richtext/richtextctrl.h"
22#include "wx/richtext/richtextstyles.h"
23
24#ifndef WX_PRECOMP
25 #include "wx/wx.h"
26 #include "wx/settings.h"
27#endif
28
29#include "wx/timer.h"
30#include "wx/textfile.h"
31#include "wx/ffile.h"
32#include "wx/filename.h"
33#include "wx/dcbuffer.h"
34#include "wx/arrimpl.cpp"
35#include "wx/fontenum.h"
36#include "wx/accel.h"
37
38#if defined (__WXGTK__) || defined(__WXX11__) || defined(__WXMOTIF__)
39#define wxHAVE_PRIMARY_SELECTION 1
40#else
41#define wxHAVE_PRIMARY_SELECTION 0
42#endif
43
44#if wxUSE_CLIPBOARD && wxHAVE_PRIMARY_SELECTION
45#include "wx/clipbrd.h"
46#endif
47
48// DLL options compatibility check:
49#include "wx/app.h"
50WX_CHECK_BUILD_OPTIONS("wxRichTextCtrl")
51
52wxDEFINE_EVENT( wxEVT_RICHTEXT_LEFT_CLICK, wxRichTextEvent );
53wxDEFINE_EVENT( wxEVT_RICHTEXT_MIDDLE_CLICK, wxRichTextEvent );
54wxDEFINE_EVENT( wxEVT_RICHTEXT_RIGHT_CLICK, wxRichTextEvent );
55wxDEFINE_EVENT( wxEVT_RICHTEXT_LEFT_DCLICK, wxRichTextEvent );
56wxDEFINE_EVENT( wxEVT_RICHTEXT_RETURN, wxRichTextEvent );
57wxDEFINE_EVENT( wxEVT_RICHTEXT_CHARACTER, wxRichTextEvent );
58wxDEFINE_EVENT( wxEVT_RICHTEXT_DELETE, wxRichTextEvent );
59
60wxDEFINE_EVENT( wxEVT_RICHTEXT_STYLESHEET_REPLACING, wxRichTextEvent );
61wxDEFINE_EVENT( wxEVT_RICHTEXT_STYLESHEET_REPLACED, wxRichTextEvent );
62wxDEFINE_EVENT( wxEVT_RICHTEXT_STYLESHEET_CHANGING, wxRichTextEvent );
63wxDEFINE_EVENT( wxEVT_RICHTEXT_STYLESHEET_CHANGED, wxRichTextEvent );
64
65wxDEFINE_EVENT( wxEVT_RICHTEXT_CONTENT_INSERTED, wxRichTextEvent );
66wxDEFINE_EVENT( wxEVT_RICHTEXT_CONTENT_DELETED, wxRichTextEvent );
67wxDEFINE_EVENT( wxEVT_RICHTEXT_STYLE_CHANGED, wxRichTextEvent );
68wxDEFINE_EVENT( wxEVT_RICHTEXT_PROPERTIES_CHANGED, wxRichTextEvent );
69wxDEFINE_EVENT( wxEVT_RICHTEXT_SELECTION_CHANGED, wxRichTextEvent );
70wxDEFINE_EVENT( wxEVT_RICHTEXT_BUFFER_RESET, wxRichTextEvent );
71wxDEFINE_EVENT( wxEVT_RICHTEXT_FOCUS_OBJECT_CHANGED, wxRichTextEvent );
72
73#if wxRICHTEXT_USE_OWN_CARET
74
75/*!
76 * wxRichTextCaret
77 *
78 * This implements a non-flashing cursor in case there
79 * are platform-specific problems with the generic caret.
80 * wxRICHTEXT_USE_OWN_CARET is set in richtextbuffer.h.
81 */
82
83class wxRichTextCaret;
84class wxRichTextCaretTimer: public wxTimer
85{
86 public:
87 wxRichTextCaretTimer(wxRichTextCaret* caret)
88 {
89 m_caret = caret;
90 }
91 virtual void Notify();
92 wxRichTextCaret* m_caret;
93};
94
95class wxRichTextCaret: public wxCaret
96{
97public:
98 // ctors
99 // -----
100 // default - use Create()
101 wxRichTextCaret(): m_timer(this) { Init(); }
102 // creates a block caret associated with the given window
103 wxRichTextCaret(wxRichTextCtrl *window, int width, int height)
104 : wxCaret(window, width, height), m_timer(this) { Init(); m_richTextCtrl = window; }
105 wxRichTextCaret(wxRichTextCtrl *window, const wxSize& size)
106 : wxCaret(window, size), m_timer(this) { Init(); m_richTextCtrl = window; }
107
108 virtual ~wxRichTextCaret();
109
110 // implementation
111 // --------------
112
113 // called by wxWindow (not using the event tables)
114 virtual void OnSetFocus();
115 virtual void OnKillFocus();
116
117 // draw the caret on the given DC
118 void DoDraw(wxDC *dc);
119
120 // get the visible count
121 int GetVisibleCount() const { return m_countVisible; }
122
123 // delay repositioning
124 bool GetNeedsUpdate() const { return m_needsUpdate; }
125 void SetNeedsUpdate(bool needsUpdate = true ) { m_needsUpdate = needsUpdate; }
126
127 void Notify();
128
129 bool GetRefreshEnabled() const { return m_refreshEnabled; }
130 void EnableRefresh(bool b) { m_refreshEnabled = b; }
131
132protected:
133 virtual void DoShow();
134 virtual void DoHide();
135 virtual void DoMove();
136 virtual void DoSize();
137
138 // refresh the caret
139 void Refresh();
140
141private:
142 void Init();
143
144 int m_xOld,
145 m_yOld;
146 bool m_hasFocus; // true => our window has focus
147 bool m_needsUpdate; // must be repositioned
148 bool m_flashOn;
149 wxRichTextCaretTimer m_timer;
150 wxRichTextCtrl* m_richTextCtrl;
151 bool m_refreshEnabled;
152 wxPen m_caretPen;
153 wxBrush m_caretBrush;
154};
155#endif
156
157IMPLEMENT_DYNAMIC_CLASS( wxRichTextCtrl, wxControl )
158
159IMPLEMENT_DYNAMIC_CLASS( wxRichTextEvent, wxNotifyEvent )
160
161BEGIN_EVENT_TABLE( wxRichTextCtrl, wxControl )
162 EVT_PAINT(wxRichTextCtrl::OnPaint)
163 EVT_ERASE_BACKGROUND(wxRichTextCtrl::OnEraseBackground)
164 EVT_IDLE(wxRichTextCtrl::OnIdle)
165 EVT_SCROLLWIN(wxRichTextCtrl::OnScroll)
166 EVT_LEFT_DOWN(wxRichTextCtrl::OnLeftClick)
167 EVT_MOTION(wxRichTextCtrl::OnMoveMouse)
168 EVT_LEFT_UP(wxRichTextCtrl::OnLeftUp)
169 EVT_RIGHT_DOWN(wxRichTextCtrl::OnRightClick)
170 EVT_MIDDLE_DOWN(wxRichTextCtrl::OnMiddleClick)
171 EVT_LEFT_DCLICK(wxRichTextCtrl::OnLeftDClick)
172 EVT_CHAR(wxRichTextCtrl::OnChar)
173 EVT_KEY_DOWN(wxRichTextCtrl::OnChar)
174 EVT_SIZE(wxRichTextCtrl::OnSize)
175 EVT_SET_FOCUS(wxRichTextCtrl::OnSetFocus)
176 EVT_KILL_FOCUS(wxRichTextCtrl::OnKillFocus)
177 EVT_MOUSE_CAPTURE_LOST(wxRichTextCtrl::OnCaptureLost)
178 EVT_CONTEXT_MENU(wxRichTextCtrl::OnContextMenu)
179 EVT_SYS_COLOUR_CHANGED(wxRichTextCtrl::OnSysColourChanged)
180
181 EVT_MENU(wxID_UNDO, wxRichTextCtrl::OnUndo)
182 EVT_UPDATE_UI(wxID_UNDO, wxRichTextCtrl::OnUpdateUndo)
183
184 EVT_MENU(wxID_REDO, wxRichTextCtrl::OnRedo)
185 EVT_UPDATE_UI(wxID_REDO, wxRichTextCtrl::OnUpdateRedo)
186
187 EVT_MENU(wxID_COPY, wxRichTextCtrl::OnCopy)
188 EVT_UPDATE_UI(wxID_COPY, wxRichTextCtrl::OnUpdateCopy)
189
190 EVT_MENU(wxID_PASTE, wxRichTextCtrl::OnPaste)
191 EVT_UPDATE_UI(wxID_PASTE, wxRichTextCtrl::OnUpdatePaste)
192
193 EVT_MENU(wxID_CUT, wxRichTextCtrl::OnCut)
194 EVT_UPDATE_UI(wxID_CUT, wxRichTextCtrl::OnUpdateCut)
195
196 EVT_MENU(wxID_CLEAR, wxRichTextCtrl::OnClear)
197 EVT_UPDATE_UI(wxID_CLEAR, wxRichTextCtrl::OnUpdateClear)
198
199 EVT_MENU(wxID_SELECTALL, wxRichTextCtrl::OnSelectAll)
200 EVT_UPDATE_UI(wxID_SELECTALL, wxRichTextCtrl::OnUpdateSelectAll)
201
202 EVT_MENU(wxID_RICHTEXT_PROPERTIES1, wxRichTextCtrl::OnProperties)
203 EVT_UPDATE_UI(wxID_RICHTEXT_PROPERTIES1, wxRichTextCtrl::OnUpdateProperties)
204
205 EVT_MENU(wxID_RICHTEXT_PROPERTIES2, wxRichTextCtrl::OnProperties)
206 EVT_UPDATE_UI(wxID_RICHTEXT_PROPERTIES2, wxRichTextCtrl::OnUpdateProperties)
207
208 EVT_MENU(wxID_RICHTEXT_PROPERTIES3, wxRichTextCtrl::OnProperties)
209 EVT_UPDATE_UI(wxID_RICHTEXT_PROPERTIES3, wxRichTextCtrl::OnUpdateProperties)
210
211END_EVENT_TABLE()
212
213/*!
214 * wxRichTextCtrl
215 */
216
217wxArrayString wxRichTextCtrl::sm_availableFontNames;
218
219wxRichTextCtrl::wxRichTextCtrl()
220 : wxScrollHelper(this)
221{
222 Init();
223}
224
225wxRichTextCtrl::wxRichTextCtrl(wxWindow* parent,
226 wxWindowID id,
227 const wxString& value,
228 const wxPoint& pos,
229 const wxSize& size,
230 long style,
231 const wxValidator& validator,
232 const wxString& name)
233 : wxScrollHelper(this)
234{
235 Init();
236 Create(parent, id, value, pos, size, style, validator, name);
237}
238
239/// Creation
240bool wxRichTextCtrl::Create( wxWindow* parent, wxWindowID id, const wxString& value, const wxPoint& pos, const wxSize& size, long style,
241 const wxValidator& validator, const wxString& name)
242{
243 style |= wxVSCROLL;
244
245 if (!wxControl::Create(parent, id, pos, size,
246 style|wxFULL_REPAINT_ON_RESIZE,
247 validator, name))
248 return false;
249
250 if (!GetFont().IsOk())
251 {
252 SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
253 }
254
255 // No physical scrolling, so we can preserve margins
256 EnableScrolling(false, false);
257
258 if (style & wxTE_READONLY)
259 SetEditable(false);
260
261 // The base attributes must all have default values
262 wxRichTextAttr attributes;
263 attributes.SetFont(GetFont());
264 attributes.SetTextColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT));
265 attributes.SetAlignment(wxTEXT_ALIGNMENT_LEFT);
266 attributes.SetLineSpacing(10);
267 attributes.SetParagraphSpacingAfter(10);
268 attributes.SetParagraphSpacingBefore(0);
269 SetBasicStyle(attributes);
270
271 int margin = 5;
272 SetMargins(margin, margin);
273
274 // The default attributes will be merged with base attributes, so
275 // can be empty to begin with
276 wxRichTextAttr defaultAttributes;
277 SetDefaultStyle(defaultAttributes);
278
279 SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW));
280 SetBackgroundStyle(wxBG_STYLE_CUSTOM);
281
282 GetBuffer().Reset();
283 GetBuffer().SetRichTextCtrl(this);
284
285#if wxRICHTEXT_USE_OWN_CARET
286 SetCaret(new wxRichTextCaret(this, wxRICHTEXT_DEFAULT_CARET_WIDTH, 16));
287#else
288 SetCaret(new wxCaret(this, wxRICHTEXT_DEFAULT_CARET_WIDTH, 16));
289#endif
290
291 // Tell the sizers to use the given or best size
292 SetInitialSize(size);
293
294#if wxRICHTEXT_BUFFERED_PAINTING
295 // Create a buffer
296 RecreateBuffer(size);
297#endif
298
299 m_textCursor = wxCursor(wxCURSOR_IBEAM);
300 m_urlCursor = wxCursor(wxCURSOR_HAND);
301
302 SetCursor(m_textCursor);
303
304 if (!value.IsEmpty())
305 SetValue(value);
306
307 GetBuffer().AddEventHandler(this);
308
309 // Accelerators
310 wxAcceleratorEntry entries[6];
311
312 entries[0].Set(wxACCEL_CTRL, (int) 'C', wxID_COPY);
313 entries[1].Set(wxACCEL_CTRL, (int) 'X', wxID_CUT);
314 entries[2].Set(wxACCEL_CTRL, (int) 'V', wxID_PASTE);
315 entries[3].Set(wxACCEL_CTRL, (int) 'A', wxID_SELECTALL);
316 entries[4].Set(wxACCEL_CTRL, (int) 'Z', wxID_UNDO);
317 entries[5].Set(wxACCEL_CTRL, (int) 'Y', wxID_REDO);
318
319 wxAcceleratorTable accel(6, entries);
320 SetAcceleratorTable(accel);
321
322 m_contextMenu = new wxMenu;
323 m_contextMenu->Append(wxID_UNDO, _("&Undo"));
324 m_contextMenu->Append(wxID_REDO, _("&Redo"));
325 m_contextMenu->AppendSeparator();
326 m_contextMenu->Append(wxID_CUT, _("Cu&t"));
327 m_contextMenu->Append(wxID_COPY, _("&Copy"));
328 m_contextMenu->Append(wxID_PASTE, _("&Paste"));
329 m_contextMenu->Append(wxID_CLEAR, _("&Delete"));
330 m_contextMenu->AppendSeparator();
331 m_contextMenu->Append(wxID_SELECTALL, _("Select &All"));
332 m_contextMenu->AppendSeparator();
333 m_contextMenu->Append(wxID_RICHTEXT_PROPERTIES1, _("&Properties"));
334
335#if wxUSE_DRAG_AND_DROP
336 SetDropTarget(new wxRichTextDropTarget(this));
337#endif
338
339 return true;
340}
341
342wxRichTextCtrl::~wxRichTextCtrl()
343{
344 SetFocusObject(& GetBuffer(), false);
345 GetBuffer().RemoveEventHandler(this);
346
347 delete m_contextMenu;
348}
349
350/// Member initialisation
351void wxRichTextCtrl::Init()
352{
353 m_contextMenu = NULL;
354 m_caret = NULL;
355 m_caretPosition = -1;
356 m_selectionAnchor = -2;
357 m_selectionAnchorObject = NULL;
358 m_selectionState = wxRichTextCtrlSelectionState_Normal;
359 m_editable = true;
360 m_useVirtualAttributes = false;
361 m_verticalScrollbarEnabled = true;
362 m_caretAtLineStart = false;
363 m_dragging = false;
364#if wxUSE_DRAG_AND_DROP
365 m_preDrag = false;
366#endif
367 m_fullLayoutRequired = false;
368 m_fullLayoutTime = 0;
369 m_fullLayoutSavedPosition = 0;
370 m_delayedLayoutThreshold = wxRICHTEXT_DEFAULT_DELAYED_LAYOUT_THRESHOLD;
371 m_caretPositionForDefaultStyle = -2;
372 m_focusObject = & m_buffer;
373 m_scale = 1.0;
374}
375
376void wxRichTextCtrl::DoThaw()
377{
378 if (GetBuffer().IsDirty())
379 LayoutContent();
380 else
381 SetupScrollbars();
382
383 wxWindow::DoThaw();
384}
385
386/// Clear all text
387void wxRichTextCtrl::Clear()
388{
389 if (GetFocusObject() == & GetBuffer())
390 {
391 m_buffer.ResetAndClearCommands();
392 m_buffer.Invalidate(wxRICHTEXT_ALL);
393 }
394 else
395 {
396 GetFocusObject()->Reset();
397 }
398
399 m_caretPosition = -1;
400 m_caretPositionForDefaultStyle = -2;
401 m_caretAtLineStart = false;
402 m_selection.Reset();
403 m_selectionState = wxRichTextCtrlSelectionState_Normal;
404
405 Scroll(0,0);
406
407 if (!IsFrozen())
408 {
409 LayoutContent();
410 Refresh(false);
411 }
412
413 wxTextCtrl::SendTextUpdatedEvent(this);
414}
415
416/// Painting
417void wxRichTextCtrl::OnPaint(wxPaintEvent& WXUNUSED(event))
418{
419#if !wxRICHTEXT_USE_OWN_CARET
420 if (GetCaret() && !IsFrozen())
421 GetCaret()->Hide();
422#else
423 // Stop the caret refreshing the control from within the
424 // paint handler
425 if (GetCaret())
426 ((wxRichTextCaret*) GetCaret())->EnableRefresh(false);
427#endif
428
429 {
430#if wxRICHTEXT_BUFFERED_PAINTING
431 wxBufferedPaintDC dc(this, m_bufferBitmap);
432#else
433 wxPaintDC dc(this);
434#endif
435
436 if (IsFrozen())
437 return;
438
439 PrepareDC(dc);
440
441 dc.SetFont(GetFont());
442
443 wxRect drawingArea(GetUpdateRegion().GetBox());
444 drawingArea.SetPosition(GetUnscaledPoint(GetLogicalPoint(drawingArea.GetPosition())));
445 drawingArea.SetSize(GetUnscaledSize(drawingArea.GetSize()));
446
447 wxRect availableSpace(GetUnscaledSize(GetClientSize()));
448 wxRichTextDrawingContext context(& GetBuffer());
449 if (GetBuffer().IsDirty())
450 {
451 dc.SetUserScale(GetScale(), GetScale());
452
453 GetBuffer().Layout(dc, context, availableSpace, availableSpace, wxRICHTEXT_FIXED_WIDTH|wxRICHTEXT_VARIABLE_HEIGHT);
454 GetBuffer().Invalidate(wxRICHTEXT_NONE);
455
456 dc.SetUserScale(1.0, 1.0);
457
458 SetupScrollbars();
459 }
460
461 // Paint the background
462 PaintBackground(dc);
463
464 wxRect clipRect(availableSpace);
465 clipRect.x += GetBuffer().GetLeftMargin();
466 clipRect.y += GetBuffer().GetTopMargin();
467 clipRect.width -= (GetBuffer().GetLeftMargin() + GetBuffer().GetRightMargin());
468 clipRect.height -= (GetBuffer().GetTopMargin() + GetBuffer().GetBottomMargin());
469
470 clipRect = GetScaledRect(clipRect);
471 clipRect.SetPosition(GetLogicalPoint(clipRect.GetPosition()));
472
473 dc.SetClippingRegion(clipRect);
474
475 int flags = 0;
476 if ((GetExtraStyle() & wxRICHTEXT_EX_NO_GUIDELINES) == 0)
477 flags |= wxRICHTEXT_DRAW_GUIDELINES;
478
479 dc.SetUserScale(GetScale(), GetScale());
480
481 GetBuffer().Draw(dc, context, GetBuffer().GetOwnRange(), GetSelection(), drawingArea, 0 /* descent */, flags);
482
483 dc.DestroyClippingRegion();
484
485 // Other user defined painting after everything else (i.e. all text) is painted
486 PaintAboveContent(dc);
487
488#if wxRICHTEXT_USE_OWN_CARET
489 if (GetCaret()->IsVisible())
490 {
491 PositionCaret();
492 ((wxRichTextCaret*) GetCaret())->DoDraw(& dc);
493 }
494#endif
495
496 dc.SetUserScale(1.0, 1.0);
497 }
498
499#if !wxRICHTEXT_USE_OWN_CARET
500 if (GetCaret())
501 GetCaret()->Show();
502 PositionCaret();
503#else
504 if (GetCaret())
505 ((wxRichTextCaret*) GetCaret())->EnableRefresh(true);
506#endif
507}
508
509// Empty implementation, to prevent flicker
510void wxRichTextCtrl::OnEraseBackground(wxEraseEvent& WXUNUSED(event))
511{
512}
513
514void wxRichTextCtrl::OnSetFocus(wxFocusEvent& WXUNUSED(event))
515{
516 if (GetCaret())
517 {
518#if !wxRICHTEXT_USE_OWN_CARET
519 PositionCaret();
520#endif
521 GetCaret()->Show();
522 }
523
524#if defined(__WXGTK__) && !wxRICHTEXT_USE_OWN_CARET
525 // Work around dropouts when control is focused
526 if (!IsFrozen())
527 {
528 Refresh(false);
529 }
530#endif
531}
532
533void wxRichTextCtrl::OnKillFocus(wxFocusEvent& WXUNUSED(event))
534{
535 if (GetCaret())
536 GetCaret()->Hide();
537
538#if defined(__WXGTK__) && !wxRICHTEXT_USE_OWN_CARET
539 // Work around dropouts when control is focused
540 if (!IsFrozen())
541 {
542 Refresh(false);
543 }
544#endif
545}
546
547void wxRichTextCtrl::OnCaptureLost(wxMouseCaptureLostEvent& WXUNUSED(event))
548{
549 m_dragging = false;
550}
551
552// Set up the caret for the given position and container, after a mouse click
553bool wxRichTextCtrl::SetCaretPositionAfterClick(wxRichTextParagraphLayoutBox* container, long position, int hitTestFlags, bool extendSelection)
554{
555 bool caretAtLineStart = false;
556
557 if (hitTestFlags & wxRICHTEXT_HITTEST_BEFORE)
558 {
559 // If we're at the start of a line (but not first in para)
560 // then we should keep the caret showing at the start of the line
561 // by showing the m_caretAtLineStart flag.
562 wxRichTextParagraph* para = container->GetParagraphAtPosition(position);
563 wxRichTextLine* line = container->GetLineAtPosition(position);
564
565 if (line && para && line->GetAbsoluteRange().GetStart() == position && para->GetRange().GetStart() != position)
566 caretAtLineStart = true;
567 position --;
568 }
569
570 if (extendSelection && (m_caretPosition != position))
571 ExtendSelection(m_caretPosition, position, wxRICHTEXT_SHIFT_DOWN);
572
573 MoveCaret(position, caretAtLineStart);
574 SetDefaultStyleToCursorStyle();
575
576 return true;
577}
578
579/// Left-click
580void wxRichTextCtrl::OnLeftClick(wxMouseEvent& event)
581{
582 SetFocus();
583
584 wxClientDC dc(this);
585 PrepareDC(dc);
586 dc.SetFont(GetFont());
587
588 // TODO: detect change of focus object
589 long position = 0;
590 wxRichTextObject* hitObj = NULL;
591 wxRichTextObject* contextObj = NULL;
592 wxRichTextDrawingContext context(& GetBuffer());
593 int hit = GetBuffer().HitTest(dc, context, GetUnscaledPoint(event.GetLogicalPosition(dc)), position, & hitObj, & contextObj, wxRICHTEXT_HITTEST_HONOUR_ATOMIC);
594
595#if wxUSE_DRAG_AND_DROP
596 // If there's no selection, or we're not inside it, this isn't an attempt to initiate Drag'n'Drop
597 if (IsEditable() && HasSelection() && GetSelectionRange().ToInternal().Contains(position))
598 {
599 // This might be an attempt at initiating Drag'n'Drop. So set the time & flags
600 m_preDrag = true;
601 m_dragStartPoint = event.GetPosition(); // No need to worry about logical positions etc, we only care about the distance from the original pt
602
603#if wxUSE_DATETIME
604 m_dragStartTime = wxDateTime::UNow();
605#endif // wxUSE_DATETIME
606
607 // Preserve behaviour of clicking on an object within the selection
608 if (hit != wxRICHTEXT_HITTEST_NONE && hitObj)
609 m_dragging = true;
610
611 return; // Don't skip the event, else the selection will be lost
612 }
613#endif // wxUSE_DRAG_AND_DROP
614
615 if (hit != wxRICHTEXT_HITTEST_NONE && hitObj)
616 {
617 wxRichTextParagraphLayoutBox* oldFocusObject = GetFocusObject();
618 wxRichTextParagraphLayoutBox* container = wxDynamicCast(contextObj, wxRichTextParagraphLayoutBox);
619 if (container && container != GetFocusObject() && container->AcceptsFocus())
620 {
621 SetFocusObject(container, false /* don't set caret position yet */);
622 }
623
624 m_dragging = true;
625 CaptureMouse();
626
627 long oldCaretPos = m_caretPosition;
628
629 SetCaretPositionAfterClick(container, position, hit);
630
631 // For now, don't handle shift-click when we're selecting multiple objects.
632 if (event.ShiftDown() && GetFocusObject() == oldFocusObject && m_selectionState == wxRichTextCtrlSelectionState_Normal)
633 ExtendSelection(oldCaretPos, m_caretPosition, wxRICHTEXT_SHIFT_DOWN);
634 else
635 SelectNone();
636 }
637
638 event.Skip();
639}
640
641/// Left-up
642void wxRichTextCtrl::OnLeftUp(wxMouseEvent& event)
643{
644 if (m_dragging)
645 {
646 m_dragging = false;
647 if (GetCapture() == this)
648 ReleaseMouse();
649
650 // See if we clicked on a URL
651 wxClientDC dc(this);
652 PrepareDC(dc);
653 dc.SetFont(GetFont());
654
655 long position = 0;
656 wxPoint logicalPt = event.GetLogicalPosition(dc);
657 wxRichTextObject* hitObj = NULL;
658 wxRichTextObject* contextObj = NULL;
659 wxRichTextDrawingContext context(& GetBuffer());
660 // Only get objects at this level, not nested, because otherwise we couldn't swipe text at a single level.
661 int hit = GetFocusObject()->HitTest(dc, context, GetUnscaledPoint(logicalPt), position, & hitObj, & contextObj, wxRICHTEXT_HITTEST_NO_NESTED_OBJECTS|wxRICHTEXT_HITTEST_HONOUR_ATOMIC);
662
663#if wxUSE_DRAG_AND_DROP
664 if (m_preDrag)
665 {
666 // Preserve the behaviour that would have happened without drag-and-drop detection, in OnLeftClick
667 m_preDrag = false; // Tell DnD not to happen now: we are processing Left Up ourselves.
668
669 // Do the actions that would have been done in OnLeftClick if we hadn't tried to drag
670 long position = 0;
671 wxRichTextObject* hitObj = NULL;
672 wxRichTextObject* contextObj = NULL;
673 int hit = GetBuffer().HitTest(dc, context, GetUnscaledPoint(event.GetLogicalPosition(dc)), position, & hitObj, & contextObj, wxRICHTEXT_HITTEST_HONOUR_ATOMIC);
674 wxRichTextParagraphLayoutBox* oldFocusObject = GetFocusObject();
675 wxRichTextParagraphLayoutBox* container = wxDynamicCast(contextObj, wxRichTextParagraphLayoutBox);
676 if (container && container != GetFocusObject() && container->AcceptsFocus())
677 {
678 SetFocusObject(container, false /* don't set caret position yet */);
679 }
680
681 long oldCaretPos = m_caretPosition;
682
683 SetCaretPositionAfterClick(container, position, hit);
684
685 // For now, don't handle shift-click when we're selecting multiple objects.
686 if (event.ShiftDown() && GetFocusObject() == oldFocusObject && m_selectionState == wxRichTextCtrlSelectionState_Normal)
687 ExtendSelection(oldCaretPos, m_caretPosition, wxRICHTEXT_SHIFT_DOWN);
688 else
689 SelectNone();
690 }
691#endif
692
693 if ((hit != wxRICHTEXT_HITTEST_NONE) && !(hit & wxRICHTEXT_HITTEST_OUTSIDE))
694 {
695 wxRichTextEvent cmdEvent(
696 wxEVT_RICHTEXT_LEFT_CLICK,
697 GetId());
698 cmdEvent.SetEventObject(this);
699 cmdEvent.SetPosition(position);
700 if (hitObj)
701 cmdEvent.SetContainer(hitObj->GetContainer());
702
703 if (!GetEventHandler()->ProcessEvent(cmdEvent))
704 {
705 wxRichTextAttr attr;
706 if (GetStyle(position, attr))
707 {
708 if (attr.HasFlag(wxTEXT_ATTR_URL))
709 {
710 wxString urlTarget = attr.GetURL();
711 if (!urlTarget.IsEmpty())
712 {
713 wxMouseEvent mouseEvent(event);
714
715 long startPos = 0, endPos = 0;
716 wxRichTextObject* obj = GetFocusObject()->GetLeafObjectAtPosition(position);
717 if (obj)
718 {
719 startPos = obj->GetRange().GetStart();
720 endPos = obj->GetRange().GetEnd();
721 }
722
723 wxTextUrlEvent urlEvent(GetId(), mouseEvent, startPos, endPos);
724 InitCommandEvent(urlEvent);
725
726 urlEvent.SetString(urlTarget);
727
728 GetEventHandler()->ProcessEvent(urlEvent);
729 }
730 }
731 }
732 }
733 }
734 }
735
736#if wxUSE_DRAG_AND_DROP
737 m_preDrag = false;
738#endif // wxUSE_DRAG_AND_DROP
739
740#if wxUSE_CLIPBOARD && wxUSE_DATAOBJ && wxHAVE_PRIMARY_SELECTION
741 if (HasSelection() && GetFocusObject() && GetFocusObject()->GetBuffer())
742 {
743 // Put the selection in PRIMARY, if it exists
744 wxTheClipboard->UsePrimarySelection(true);
745
746 wxRichTextRange range = GetInternalSelectionRange();
747 GetFocusObject()->GetBuffer()->CopyToClipboard(range);
748
749 wxTheClipboard->UsePrimarySelection(false);
750 }
751#endif
752}
753
754/// Mouse-movements
755void wxRichTextCtrl::OnMoveMouse(wxMouseEvent& event)
756{
757 if (!event.Dragging() && m_dragging)
758 {
759 // We may have accidentally lost a mouse-up event, especially on Linux
760 m_dragging = false;
761 if (GetCapture() == this)
762 ReleaseMouse();
763 }
764
765#if wxUSE_DRAG_AND_DROP
766 size_t distance = 0;
767 if (m_preDrag || m_dragging)
768 {
769 int x = m_dragStartPoint.x - event.GetPosition().x;
770 int y = m_dragStartPoint.y - event.GetPosition().y;
771 distance = abs(x) + abs(y);
772 }
773
774 // See if we're starting Drag'n'Drop
775 if (m_preDrag)
776 {
777#if wxUSE_DATETIME
778 wxTimeSpan diff = wxDateTime::UNow() - m_dragStartTime;
779#endif
780 if ((distance > 10)
781#if wxUSE_DATETIME
782 && (diff.GetMilliseconds() > 100)
783#endif
784 )
785 {
786 m_dragging = false;
787
788 // Start drag'n'drop
789 wxRichTextRange range = GetInternalSelectionRange();
790 if (range == wxRICHTEXT_NONE)
791 {
792 // Don't try to drag an empty range
793 m_preDrag = false;
794 return;
795 }
796
797 // Cache the current situation, to be restored if Drag'n'Drop is cancelled
798 long oldPos = GetCaretPosition();
799 wxRichTextParagraphLayoutBox* oldFocus = GetFocusObject();
800
801 wxDataObjectComposite* compositeObject = new wxDataObjectComposite();
802 wxString text = GetFocusObject()->GetTextForRange(range);
803#ifdef __WXMSW__
804 text = wxTextFile::Translate(text, wxTextFileType_Dos);
805#endif
806 compositeObject->Add(new wxTextDataObject(text), false /* not preferred */);
807
808 wxRichTextBuffer* richTextBuf = new wxRichTextBuffer;
809 GetFocusObject()->CopyFragment(range, *richTextBuf);
810 compositeObject->Add(new wxRichTextBufferDataObject(richTextBuf), true /* preferred */);
811
812 wxRichTextDropSource source(*compositeObject, this);
813 // Use wxDrag_DefaultMove, not because it's the likelier choice but because pressing Ctrl for Copy obeys the principle of least surprise
814 // The alternative, wxDrag_DefaultCopy, requires the user to know that Move needs the Shift key pressed
815 BeginBatchUndo(_("Drag"));
816 switch (source.DoDragDrop(wxDrag_AllowMove | wxDrag_DefaultMove))
817 {
818 case wxDragMove:
819 case wxDragCopy: break;
820
821 case wxDragError:
822 wxLogError(wxT("An error occurred during drag and drop operation"));
823 case wxDragNone:
824 case wxDragCancel:
825 Refresh(); // This is needed in wxMSW, otherwise resetting the position doesn't 'take'
826 SetCaretPosition(oldPos);
827 SetFocusObject(oldFocus, false);
828 default: break;
829 }
830 EndBatchUndo();
831
832 m_preDrag = false;
833 return;
834 }
835 }
836#endif // wxUSE_DRAG_AND_DROP
837
838 wxClientDC dc(this);
839 PrepareDC(dc);
840 dc.SetFont(GetFont());
841
842 long position = 0;
843 wxPoint logicalPt = event.GetLogicalPosition(dc);
844 wxRichTextObject* hitObj = NULL;
845 wxRichTextObject* contextObj = NULL;
846
847 int flags = 0;
848
849 // If we're dragging, let's only consider positions at this level; otherwise
850 // selecting a range is not going to work.
851 wxRichTextParagraphLayoutBox* container = & GetBuffer();
852 if (m_dragging)
853 {
854 flags = wxRICHTEXT_HITTEST_NO_NESTED_OBJECTS;
855 container = GetFocusObject();
856 }
857 wxRichTextDrawingContext context(& GetBuffer());
858 int hit = container->HitTest(dc, context, GetUnscaledPoint(logicalPt), position, & hitObj, & contextObj, flags);
859
860 // See if we need to change the cursor
861
862 {
863 if (hit != wxRICHTEXT_HITTEST_NONE && !(hit & wxRICHTEXT_HITTEST_OUTSIDE) && hitObj)
864 {
865 wxRichTextParagraphLayoutBox* actualContainer = wxDynamicCast(contextObj, wxRichTextParagraphLayoutBox);
866 if (actualContainer)
867 ProcessMouseMovement(actualContainer, hitObj, position, logicalPt);
868 }
869 else
870 SetCursor(m_textCursor);
871 }
872
873 if (!event.Dragging())
874 {
875 event.Skip();
876 return;
877 }
878
879 if (m_dragging
880#if wxUSE_DRAG_AND_DROP
881 && !m_preDrag
882 && (distance > 4)
883#endif
884 )
885 {
886 wxRichTextParagraphLayoutBox* commonAncestor = NULL;
887 wxRichTextParagraphLayoutBox* otherContainer = NULL;
888 wxRichTextParagraphLayoutBox* firstContainer = NULL;
889
890 // Check for dragging across multiple containers
891 long position2 = 0;
892 wxRichTextObject* hitObj2 = NULL, *contextObj2 = NULL;
893 int hit2 = GetBuffer().HitTest(dc, context, GetUnscaledPoint(logicalPt), position2, & hitObj2, & contextObj2, 0);
894 if (hit2 != wxRICHTEXT_HITTEST_NONE && !(hit2 & wxRICHTEXT_HITTEST_OUTSIDE) && hitObj2 && hitObj != hitObj2)
895 {
896 // See if we can find a common ancestor
897 if (m_selectionState == wxRichTextCtrlSelectionState_Normal)
898 {
899 firstContainer = GetFocusObject();
900 commonAncestor = wxDynamicCast(firstContainer->GetParent(), wxRichTextParagraphLayoutBox);
901 }
902 else
903 {
904 firstContainer = wxDynamicCast(m_selectionAnchorObject, wxRichTextParagraphLayoutBox);
905 //commonAncestor = GetFocusObject(); // when the selection state is not normal, the focus object (e.g. table)
906 // is the common ancestor.
907 commonAncestor = wxDynamicCast(firstContainer->GetParent(), wxRichTextParagraphLayoutBox);
908 }
909
910 if (commonAncestor && commonAncestor->HandlesChildSelections())
911 {
912 wxRichTextObject* p = hitObj2;
913 while (p)
914 {
915 if (p->GetParent() == commonAncestor)
916 {
917 otherContainer = wxDynamicCast(p, wxRichTextParagraphLayoutBox);
918 break;
919 }
920 p = p->GetParent();
921 }
922 }
923
924 if (commonAncestor && firstContainer && otherContainer)
925 {
926 // We have now got a second container that shares a parent with the current or anchor object.
927 if (m_selectionState == wxRichTextCtrlSelectionState_Normal)
928 {
929 // Don't go into common-ancestor selection mode if we still have the same
930 // container.
931 if (otherContainer != firstContainer)
932 {
933 m_selectionState = wxRichTextCtrlSelectionState_CommonAncestor;
934 m_selectionAnchorObject = firstContainer;
935 m_selectionAnchor = firstContainer->GetRange().GetStart();
936
937 // The common ancestor, such as a table, returns the cell selection
938 // between the anchor and current position.
939 m_selection = commonAncestor->GetSelection(m_selectionAnchor, otherContainer->GetRange().GetStart());
940 }
941 }
942 else
943 {
944 m_selection = commonAncestor->GetSelection(m_selectionAnchor, otherContainer->GetRange().GetStart());
945 }
946
947 Refresh();
948
949 if (otherContainer->AcceptsFocus())
950 SetFocusObject(otherContainer, false /* don't set caret and clear selection */);
951 MoveCaret(-1, false);
952 SetDefaultStyleToCursorStyle();
953 }
954 }
955 }
956
957 if (hitObj && m_dragging && hit != wxRICHTEXT_HITTEST_NONE && m_selectionState == wxRichTextCtrlSelectionState_Normal
958#if wxUSE_DRAG_AND_DROP
959 && !m_preDrag
960 && (distance > 4)
961#endif
962 )
963 {
964 SetCaretPositionAfterClick(container, position, hit, true /* extend selection */);
965 }
966}
967
968/// Right-click
969void wxRichTextCtrl::OnRightClick(wxMouseEvent& event)
970{
971 SetFocus();
972
973 wxClientDC dc(this);
974 PrepareDC(dc);
975 dc.SetFont(GetFont());
976
977 long position = 0;
978 wxPoint logicalPt = event.GetLogicalPosition(dc);
979 wxRichTextObject* hitObj = NULL;
980 wxRichTextObject* contextObj = NULL;
981 wxRichTextDrawingContext context(& GetBuffer());
982 int hit = GetFocusObject()->HitTest(dc, context, GetUnscaledPoint(logicalPt), position, & hitObj, & contextObj, wxRICHTEXT_HITTEST_HONOUR_ATOMIC);
983
984 if (hitObj && hitObj->GetContainer() != GetFocusObject())
985 {
986 wxRichTextParagraphLayoutBox* actualContainer = wxDynamicCast(contextObj, wxRichTextParagraphLayoutBox);
987 if (actualContainer && actualContainer->AcceptsFocus())
988 {
989 SetFocusObject(actualContainer, false /* don't set caret position yet */);
990 SetCaretPositionAfterClick(actualContainer, position, hit);
991 }
992 }
993
994 wxRichTextEvent cmdEvent(
995 wxEVT_RICHTEXT_RIGHT_CLICK,
996 GetId());
997 cmdEvent.SetEventObject(this);
998 cmdEvent.SetPosition(position);
999 if (hitObj)
1000 cmdEvent.SetContainer(hitObj->GetContainer());
1001
1002 if (!GetEventHandler()->ProcessEvent(cmdEvent))
1003 event.Skip();
1004}
1005
1006/// Left-double-click
1007void wxRichTextCtrl::OnLeftDClick(wxMouseEvent& WXUNUSED(event))
1008{
1009 wxRichTextEvent cmdEvent(
1010 wxEVT_RICHTEXT_LEFT_DCLICK,
1011 GetId());
1012 cmdEvent.SetEventObject(this);
1013 cmdEvent.SetPosition(m_caretPosition+1);
1014 cmdEvent.SetContainer(GetFocusObject());
1015
1016 if (!GetEventHandler()->ProcessEvent(cmdEvent))
1017 {
1018 SelectWord(GetCaretPosition()+1);
1019 }
1020}
1021
1022/// Middle-click
1023void wxRichTextCtrl::OnMiddleClick(wxMouseEvent& event)
1024{
1025 wxRichTextEvent cmdEvent(
1026 wxEVT_RICHTEXT_MIDDLE_CLICK,
1027 GetId());
1028 cmdEvent.SetEventObject(this);
1029 cmdEvent.SetPosition(m_caretPosition+1);
1030 cmdEvent.SetContainer(GetFocusObject());
1031
1032 if (!GetEventHandler()->ProcessEvent(cmdEvent))
1033 event.Skip();
1034
1035#if wxUSE_CLIPBOARD && wxUSE_DATAOBJ && wxHAVE_PRIMARY_SELECTION
1036 // Paste any PRIMARY selection, if it exists
1037 wxTheClipboard->UsePrimarySelection(true);
1038 Paste();
1039 wxTheClipboard->UsePrimarySelection(false);
1040#endif
1041}
1042
1043/// Key press
1044void wxRichTextCtrl::OnChar(wxKeyEvent& event)
1045{
1046 int flags = 0;
1047 if (event.CmdDown())
1048 flags |= wxRICHTEXT_CTRL_DOWN;
1049 if (event.ShiftDown())
1050 flags |= wxRICHTEXT_SHIFT_DOWN;
1051 if (event.AltDown())
1052 flags |= wxRICHTEXT_ALT_DOWN;
1053
1054 if (event.GetEventType() == wxEVT_KEY_DOWN)
1055 {
1056 if (event.IsKeyInCategory(WXK_CATEGORY_NAVIGATION))
1057 {
1058 KeyboardNavigate(event.GetKeyCode(), flags);
1059 return;
1060 }
1061
1062 long keycode = event.GetKeyCode();
1063 switch ( keycode )
1064 {
1065 case WXK_ESCAPE:
1066 case WXK_START:
1067 case WXK_LBUTTON:
1068 case WXK_RBUTTON:
1069 case WXK_CANCEL:
1070 case WXK_MBUTTON:
1071 case WXK_CLEAR:
1072 case WXK_SHIFT:
1073 case WXK_ALT:
1074 case WXK_CONTROL:
1075 case WXK_MENU:
1076 case WXK_PAUSE:
1077 case WXK_CAPITAL:
1078 case WXK_END:
1079 case WXK_HOME:
1080 case WXK_LEFT:
1081 case WXK_UP:
1082 case WXK_RIGHT:
1083 case WXK_DOWN:
1084 case WXK_SELECT:
1085 case WXK_PRINT:
1086 case WXK_EXECUTE:
1087 case WXK_SNAPSHOT:
1088 case WXK_INSERT:
1089 case WXK_HELP:
1090 case WXK_F1:
1091 case WXK_F2:
1092 case WXK_F3:
1093 case WXK_F4:
1094 case WXK_F5:
1095 case WXK_F6:
1096 case WXK_F7:
1097 case WXK_F8:
1098 case WXK_F9:
1099 case WXK_F10:
1100 case WXK_F11:
1101 case WXK_F12:
1102 case WXK_F13:
1103 case WXK_F14:
1104 case WXK_F15:
1105 case WXK_F16:
1106 case WXK_F17:
1107 case WXK_F18:
1108 case WXK_F19:
1109 case WXK_F20:
1110 case WXK_F21:
1111 case WXK_F22:
1112 case WXK_F23:
1113 case WXK_F24:
1114 case WXK_NUMLOCK:
1115 case WXK_SCROLL:
1116 case WXK_PAGEUP:
1117 case WXK_PAGEDOWN:
1118 case WXK_NUMPAD_F1:
1119 case WXK_NUMPAD_F2:
1120 case WXK_NUMPAD_F3:
1121 case WXK_NUMPAD_F4:
1122 case WXK_NUMPAD_HOME:
1123 case WXK_NUMPAD_LEFT:
1124 case WXK_NUMPAD_UP:
1125 case WXK_NUMPAD_RIGHT:
1126 case WXK_NUMPAD_DOWN:
1127 case WXK_NUMPAD_PAGEUP:
1128 case WXK_NUMPAD_PAGEDOWN:
1129 case WXK_NUMPAD_END:
1130 case WXK_NUMPAD_BEGIN:
1131 case WXK_NUMPAD_INSERT:
1132 case WXK_WINDOWS_LEFT:
1133 {
1134 return;
1135 }
1136 default:
1137 {
1138 }
1139 }
1140
1141 // Must process this before translation, otherwise it's translated into a WXK_DELETE event.
1142 if (event.CmdDown() && event.GetKeyCode() == WXK_BACK)
1143 {
1144 if (!ProcessBackKey(event, flags))
1145 return;
1146 }
1147 else
1148 event.Skip();
1149
1150 return;
1151 }
1152
1153 // all the other keys modify the controls contents which shouldn't be
1154 // possible if we're read-only
1155 if ( !IsEditable() )
1156 {
1157 event.Skip();
1158 return;
1159 }
1160
1161 if (event.GetKeyCode() == WXK_RETURN)
1162 {
1163 if (!CanInsertContent(* GetFocusObject(), m_caretPosition+1))
1164 return;
1165
1166 long newPos = m_caretPosition;
1167
1168 if (HasSelection() && !CanDeleteRange(* GetFocusObject(), GetSelectionRange()))
1169 {
1170 return;
1171 }
1172
1173 BeginBatchUndo(_("Insert Text"));
1174
1175 DeleteSelectedContent(& newPos);
1176
1177 if (event.ShiftDown())
1178 {
1179 wxString text;
1180 text = wxRichTextLineBreakChar;
1181 GetFocusObject()->InsertTextWithUndo(& GetBuffer(), newPos+1, text, this);
1182 m_caretAtLineStart = true;
1183 PositionCaret();
1184 }
1185 else
1186 GetFocusObject()->InsertNewlineWithUndo(& GetBuffer(), newPos+1, this, wxRICHTEXT_INSERT_WITH_PREVIOUS_PARAGRAPH_STYLE|wxRICHTEXT_INSERT_INTERACTIVE);
1187
1188 // Automatically renumber list
1189 bool isNumberedList = false;
1190 wxRichTextRange numberedListRange = FindRangeForList(newPos+1, isNumberedList);
1191 if (isNumberedList && numberedListRange != wxRichTextRange(-1, -1))
1192 {
1193 NumberList(numberedListRange, NULL, wxRICHTEXT_SETSTYLE_RENUMBER|wxRICHTEXT_SETSTYLE_WITH_UNDO);
1194 }
1195
1196 EndBatchUndo();
1197 SetDefaultStyleToCursorStyle();
1198
1199 ScrollIntoView(m_caretPosition, WXK_RIGHT);
1200
1201 wxRichTextEvent cmdEvent(
1202 wxEVT_RICHTEXT_RETURN,
1203 GetId());
1204 cmdEvent.SetEventObject(this);
1205 cmdEvent.SetFlags(flags);
1206 cmdEvent.SetPosition(newPos+1);
1207 cmdEvent.SetContainer(GetFocusObject());
1208
1209 if (!GetEventHandler()->ProcessEvent(cmdEvent))
1210 {
1211 // Generate conventional event
1212 wxCommandEvent textEvent(wxEVT_TEXT_ENTER, GetId());
1213 InitCommandEvent(textEvent);
1214
1215 GetEventHandler()->ProcessEvent(textEvent);
1216 }
1217 Update();
1218 }
1219 else if (event.GetKeyCode() == WXK_BACK)
1220 {
1221 ProcessBackKey(event, flags);
1222 }
1223 else if (event.GetKeyCode() == WXK_DELETE)
1224 {
1225 long newPos = m_caretPosition;
1226
1227 if (HasSelection() && !CanDeleteRange(* GetFocusObject(), GetSelectionRange()))
1228 {
1229 return;
1230 }
1231
1232 BeginBatchUndo(_("Delete Text"));
1233
1234 bool processed = DeleteSelectedContent(& newPos);
1235
1236 int deletions = 0;
1237 if (processed)
1238 deletions ++;
1239
1240 // Submit range in character positions, which are greater than caret positions,
1241 if (newPos < GetFocusObject()->GetOwnRange().GetEnd()+1)
1242 {
1243 if (event.CmdDown())
1244 {
1245 long pos = wxRichTextCtrl::FindNextWordPosition(1);
1246 if (pos != -1 && (pos > newPos))
1247 {
1248 wxRichTextRange range(newPos+1, pos);
1249 if (CanDeleteRange(* GetFocusObject(), range.FromInternal()))
1250 {
1251 GetFocusObject()->DeleteRangeWithUndo(range, this, & GetBuffer());
1252 deletions ++;
1253 }
1254 processed = true;
1255 }
1256 }
1257
1258 if (!processed && newPos < (GetLastPosition()-1))
1259 {
1260 wxRichTextRange range(newPos+1, newPos+1);
1261 if (CanDeleteRange(* GetFocusObject(), range.FromInternal()))
1262 {
1263 GetFocusObject()->DeleteRangeWithUndo(range, this, & GetBuffer());
1264 deletions ++;
1265 }
1266 }
1267 }
1268
1269 EndBatchUndo();
1270
1271 if (GetLastPosition() == -1)
1272 {
1273 GetFocusObject()->Reset();
1274
1275 m_caretPosition = -1;
1276 PositionCaret();
1277 SetDefaultStyleToCursorStyle();
1278 }
1279
1280 ScrollIntoView(m_caretPosition, WXK_LEFT);
1281
1282 // Always send this event; wxEVT_RICHTEXT_CONTENT_DELETED will be sent only if there is an actual deletion.
1283 {
1284 wxRichTextEvent cmdEvent(
1285 wxEVT_RICHTEXT_DELETE,
1286 GetId());
1287 cmdEvent.SetEventObject(this);
1288 cmdEvent.SetFlags(flags);
1289 cmdEvent.SetPosition(m_caretPosition+1);
1290 cmdEvent.SetContainer(GetFocusObject());
1291 GetEventHandler()->ProcessEvent(cmdEvent);
1292 }
1293
1294 Update();
1295 }
1296 else
1297 {
1298 long keycode = event.GetKeyCode();
1299 switch ( keycode )
1300 {
1301 case WXK_ESCAPE:
1302 {
1303 event.Skip();
1304 return;
1305 }
1306
1307 default:
1308 {
1309#ifdef __WXMAC__
1310 if (event.CmdDown())
1311#else
1312 // Fixes AltGr+key with European input languages on Windows
1313 if ((event.CmdDown() && !event.AltDown()) || (event.AltDown() && !event.CmdDown()))
1314#endif
1315 {
1316 event.Skip();
1317 return;
1318 }
1319
1320 wxRichTextEvent cmdEvent(
1321 wxEVT_RICHTEXT_CHARACTER,
1322 GetId());
1323 cmdEvent.SetEventObject(this);
1324 cmdEvent.SetFlags(flags);
1325#if wxUSE_UNICODE
1326 cmdEvent.SetCharacter(event.GetUnicodeKey());
1327#else
1328 cmdEvent.SetCharacter((wxChar) keycode);
1329#endif
1330 cmdEvent.SetPosition(m_caretPosition+1);
1331 cmdEvent.SetContainer(GetFocusObject());
1332
1333 if (keycode == wxT('\t'))
1334 {
1335 // See if we need to promote or demote the selection or paragraph at the cursor
1336 // position, instead of inserting a tab.
1337 long pos = GetAdjustedCaretPosition(GetCaretPosition());
1338 wxRichTextParagraph* para = GetFocusObject()->GetParagraphAtPosition(pos);
1339 if (para && para->GetRange().GetStart() == pos && para->GetAttributes().HasListStyleName())
1340 {
1341 wxRichTextRange range;
1342 if (HasSelection())
1343 range = GetSelectionRange();
1344 else
1345 range = para->GetRange().FromInternal();
1346
1347 int promoteBy = event.ShiftDown() ? 1 : -1;
1348
1349 PromoteList(promoteBy, range, NULL);
1350
1351 GetEventHandler()->ProcessEvent(cmdEvent);
1352
1353 return;
1354 }
1355 }
1356
1357 if (!CanInsertContent(* GetFocusObject(), m_caretPosition+1))
1358 return;
1359
1360 if (HasSelection() && !CanDeleteRange(* GetFocusObject(), GetSelectionRange()))
1361 return;
1362
1363 BeginBatchUndo(_("Insert Text"));
1364
1365 long newPos = m_caretPosition;
1366 DeleteSelectedContent(& newPos);
1367
1368#if wxUSE_UNICODE
1369 wxString str = event.GetUnicodeKey();
1370#else
1371 wxString str = (wxChar) event.GetKeyCode();
1372#endif
1373 GetFocusObject()->InsertTextWithUndo(& GetBuffer(), newPos+1, str, this, 0);
1374
1375 EndBatchUndo();
1376
1377 SetDefaultStyleToCursorStyle();
1378 ScrollIntoView(m_caretPosition, WXK_RIGHT);
1379
1380 cmdEvent.SetPosition(m_caretPosition);
1381 GetEventHandler()->ProcessEvent(cmdEvent);
1382
1383 Update();
1384 }
1385 }
1386 }
1387}
1388
1389bool wxRichTextCtrl::ProcessMouseMovement(wxRichTextParagraphLayoutBox* container, wxRichTextObject* WXUNUSED(obj), long position, const wxPoint& WXUNUSED(pos))
1390{
1391 wxRichTextAttr attr;
1392 if (container && GetStyle(position, attr, container))
1393 {
1394 if (attr.HasFlag(wxTEXT_ATTR_URL))
1395 {
1396 SetCursor(m_urlCursor);
1397 }
1398 else if (!attr.HasFlag(wxTEXT_ATTR_URL))
1399 {
1400 SetCursor(m_textCursor);
1401 }
1402 return true;
1403 }
1404 else
1405 return false;
1406}
1407
1408// Processes the back key
1409bool wxRichTextCtrl::ProcessBackKey(wxKeyEvent& event, int flags)
1410{
1411 if (!IsEditable())
1412 {
1413 return false;
1414 }
1415
1416 if (HasSelection() && !CanDeleteRange(* GetFocusObject(), GetSelectionRange()))
1417 {
1418 return false;
1419 }
1420
1421 wxRichTextParagraph* para = GetFocusObject()->GetParagraphAtPosition(m_caretPosition, true);
1422
1423 // If we're at the start of a list item with a bullet, let's 'delete' the bullet, i.e.
1424 // make it a continuation paragraph.
1425 if (!HasSelection() && para && ((m_caretPosition+1) == para->GetRange().GetStart()) &&
1426 para->GetAttributes().HasBulletStyle() && (para->GetAttributes().GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_CONTINUATION) == 0)
1427 {
1428 wxRichTextParagraph* newPara = wxDynamicCast(para->Clone(), wxRichTextParagraph);
1429 newPara->GetAttributes().SetBulletStyle(newPara->GetAttributes().GetBulletStyle() | wxTEXT_ATTR_BULLET_STYLE_CONTINUATION);
1430
1431 wxRichTextAction* action = new wxRichTextAction(NULL, _("Remove Bullet"), wxRICHTEXT_CHANGE_STYLE, & GetBuffer(), GetFocusObject(), this);
1432 action->SetRange(newPara->GetRange());
1433 action->SetPosition(GetCaretPosition());
1434 action->GetNewParagraphs().AppendChild(newPara);
1435 // Also store the old ones for Undo
1436 action->GetOldParagraphs().AppendChild(new wxRichTextParagraph(*para));
1437
1438 GetBuffer().Invalidate(para->GetRange());
1439 GetBuffer().SubmitAction(action);
1440
1441 // Automatically renumber list
1442 bool isNumberedList = false;
1443 wxRichTextRange numberedListRange = FindRangeForList(m_caretPosition, isNumberedList);
1444 if (isNumberedList && numberedListRange != wxRichTextRange(-1, -1))
1445 {
1446 NumberList(numberedListRange, NULL, wxRICHTEXT_SETSTYLE_RENUMBER|wxRICHTEXT_SETSTYLE_WITH_UNDO);
1447 }
1448
1449 Update();
1450 }
1451 else
1452 {
1453 BeginBatchUndo(_("Delete Text"));
1454
1455 long newPos = m_caretPosition;
1456
1457 bool processed = DeleteSelectedContent(& newPos);
1458
1459 int deletions = 0;
1460 if (processed)
1461 deletions ++;
1462
1463 // Submit range in character positions, which are greater than caret positions,
1464 // so subtract 1 for deleted character and add 1 for conversion to character position.
1465 if (newPos > -1)
1466 {
1467 if (event.CmdDown())
1468 {
1469 long pos = wxRichTextCtrl::FindNextWordPosition(-1);
1470 if (pos < newPos)
1471 {
1472 wxRichTextRange range(pos+1, newPos);
1473 if (CanDeleteRange(* GetFocusObject(), range.FromInternal()))
1474 {
1475 GetFocusObject()->DeleteRangeWithUndo(range, this, & GetBuffer());
1476 deletions ++;
1477 }
1478 processed = true;
1479 }
1480 }
1481
1482 if (!processed)
1483 {
1484 wxRichTextRange range(newPos, newPos);
1485 if (CanDeleteRange(* GetFocusObject(), range.FromInternal()))
1486 {
1487 GetFocusObject()->DeleteRangeWithUndo(range, this, & GetBuffer());
1488 deletions ++;
1489 }
1490 }
1491 }
1492
1493 EndBatchUndo();
1494
1495 if (GetLastPosition() == -1)
1496 {
1497 GetFocusObject()->Reset();
1498
1499 m_caretPosition = -1;
1500 PositionCaret();
1501 SetDefaultStyleToCursorStyle();
1502 }
1503
1504 ScrollIntoView(m_caretPosition, WXK_LEFT);
1505
1506 // Always send this event; wxEVT_RICHTEXT_CONTENT_DELETED will be sent only if there is an actual deletion.
1507 {
1508 wxRichTextEvent cmdEvent(
1509 wxEVT_RICHTEXT_DELETE,
1510 GetId());
1511 cmdEvent.SetEventObject(this);
1512 cmdEvent.SetFlags(flags);
1513 cmdEvent.SetPosition(m_caretPosition+1);
1514 cmdEvent.SetContainer(GetFocusObject());
1515 GetEventHandler()->ProcessEvent(cmdEvent);
1516 }
1517
1518 Update();
1519 }
1520
1521 return true;
1522}
1523
1524/// Delete content if there is a selection, e.g. when pressing a key.
1525bool wxRichTextCtrl::DeleteSelectedContent(long* newPos)
1526{
1527 if (HasSelection())
1528 {
1529 long pos = m_selection.GetRange().GetStart();
1530 wxRichTextRange range = m_selection.GetRange();
1531
1532 // SelectAll causes more to be selected than doing it interactively,
1533 // and causes a new paragraph to be inserted. So for multiline buffers,
1534 // don't delete the final position.
1535 if (range.GetEnd() == GetLastPosition() && GetNumberOfLines() > 0)
1536 range.SetEnd(range.GetEnd()-1);
1537
1538 GetFocusObject()->DeleteRangeWithUndo(range, this, & GetBuffer());
1539 m_selection.Reset();
1540 m_selectionState = wxRichTextCtrlSelectionState_Normal;
1541
1542 if (newPos)
1543 *newPos = pos-1;
1544 return true;
1545 }
1546 else
1547 return false;
1548}
1549
1550/// Keyboard navigation
1551
1552/*
1553
1554Left: left one character
1555Right: right one character
1556Up: up one line
1557Down: down one line
1558Ctrl-Left: left one word
1559Ctrl-Right: right one word
1560Ctrl-Up: previous paragraph start
1561Ctrl-Down: next start of paragraph
1562Home: start of line
1563End: end of line
1564Ctrl-Home: start of document
1565Ctrl-End: end of document
1566Page-Up: Up a screen
1567Page-Down: Down a screen
1568
1569Maybe:
1570
1571Ctrl-Alt-PgUp: Start of window
1572Ctrl-Alt-PgDn: End of window
1573F8: Start selection mode
1574Esc: End selection mode
1575
1576Adding Shift does the above but starts/extends selection.
1577
1578
1579 */
1580
1581bool wxRichTextCtrl::KeyboardNavigate(int keyCode, int flags)
1582{
1583 bool success = false;
1584
1585 if (keyCode == WXK_RIGHT || keyCode == WXK_NUMPAD_RIGHT)
1586 {
1587 if (flags & wxRICHTEXT_CTRL_DOWN)
1588 success = WordRight(1, flags);
1589 else
1590 success = MoveRight(1, flags);
1591 }
1592 else if (keyCode == WXK_LEFT || keyCode == WXK_NUMPAD_LEFT)
1593 {
1594 if (flags & wxRICHTEXT_CTRL_DOWN)
1595 success = WordLeft(1, flags);
1596 else
1597 success = MoveLeft(1, flags);
1598 }
1599 else if (keyCode == WXK_UP || keyCode == WXK_NUMPAD_UP)
1600 {
1601 if (flags & wxRICHTEXT_CTRL_DOWN)
1602 success = MoveToParagraphStart(flags);
1603 else
1604 success = MoveUp(1, flags);
1605 }
1606 else if (keyCode == WXK_DOWN || keyCode == WXK_NUMPAD_DOWN)
1607 {
1608 if (flags & wxRICHTEXT_CTRL_DOWN)
1609 success = MoveToParagraphEnd(flags);
1610 else
1611 success = MoveDown(1, flags);
1612 }
1613 else if (keyCode == WXK_PAGEUP || keyCode == WXK_NUMPAD_PAGEUP)
1614 {
1615 success = PageUp(1, flags);
1616 }
1617 else if (keyCode == WXK_PAGEDOWN || keyCode == WXK_NUMPAD_PAGEDOWN)
1618 {
1619 success = PageDown(1, flags);
1620 }
1621 else if (keyCode == WXK_HOME || keyCode == WXK_NUMPAD_HOME)
1622 {
1623 if (flags & wxRICHTEXT_CTRL_DOWN)
1624 success = MoveHome(flags);
1625 else
1626 success = MoveToLineStart(flags);
1627 }
1628 else if (keyCode == WXK_END || keyCode == WXK_NUMPAD_END)
1629 {
1630 if (flags & wxRICHTEXT_CTRL_DOWN)
1631 success = MoveEnd(flags);
1632 else
1633 success = MoveToLineEnd(flags);
1634 }
1635
1636 if (success)
1637 {
1638 ScrollIntoView(m_caretPosition, keyCode);
1639 SetDefaultStyleToCursorStyle();
1640 }
1641
1642 return success;
1643}
1644
1645/// Extend the selection. Selections are in caret positions.
1646bool wxRichTextCtrl::ExtendSelection(long oldPos, long newPos, int flags)
1647{
1648 if (flags & wxRICHTEXT_SHIFT_DOWN)
1649 {
1650 if (oldPos == newPos)
1651 return false;
1652
1653 wxRichTextSelection oldSelection = m_selection;
1654
1655 m_selection.SetContainer(GetFocusObject());
1656
1657 wxRichTextRange oldRange;
1658 if (m_selection.IsValid())
1659 oldRange = m_selection.GetRange();
1660 else
1661 oldRange = wxRICHTEXT_NO_SELECTION;
1662 wxRichTextRange newRange;
1663
1664 // If not currently selecting, start selecting
1665 if (oldRange.GetStart() == -2)
1666 {
1667 m_selectionAnchor = oldPos;
1668
1669 if (oldPos > newPos)
1670 newRange.SetRange(newPos+1, oldPos);
1671 else
1672 newRange.SetRange(oldPos+1, newPos);
1673 }
1674 else
1675 {
1676 // Always ensure that the selection range start is greater than
1677 // the end.
1678 if (newPos > m_selectionAnchor)
1679 newRange.SetRange(m_selectionAnchor+1, newPos);
1680 else if (newPos == m_selectionAnchor)
1681 newRange = wxRichTextRange(-2, -2);
1682 else
1683 newRange.SetRange(newPos+1, m_selectionAnchor);
1684 }
1685
1686 m_selection.SetRange(newRange);
1687
1688 RefreshForSelectionChange(oldSelection, m_selection);
1689
1690 if (newRange.GetStart() > newRange.GetEnd())
1691 {
1692 wxLogDebug(wxT("Strange selection range"));
1693 }
1694
1695 return true;
1696 }
1697 else
1698 return false;
1699}
1700
1701/// Scroll into view, returning true if we scrolled.
1702/// This takes a _caret_ position.
1703bool wxRichTextCtrl::ScrollIntoView(long position, int keyCode)
1704{
1705 wxRichTextLine* line = GetVisibleLineForCaretPosition(position);
1706
1707 if (!line)
1708 return false;
1709
1710 int ppuX, ppuY;
1711 GetScrollPixelsPerUnit(& ppuX, & ppuY);
1712
1713 int startXUnits, startYUnits;
1714 GetViewStart(& startXUnits, & startYUnits);
1715 int startY = startYUnits * ppuY;
1716
1717 int sx = 0, sy = 0;
1718 GetVirtualSize(& sx, & sy);
1719 int sxUnits = 0;
1720 int syUnits = 0;
1721 if (ppuY != 0)
1722 syUnits = sy/ppuY;
1723
1724 wxRect rect = GetScaledRect(line->GetRect());
1725
1726 bool scrolled = false;
1727
1728 wxSize clientSize = GetClientSize();
1729
1730 int leftMargin, rightMargin, topMargin, bottomMargin;
1731
1732 {
1733 wxClientDC dc(this);
1734 wxRichTextObject::GetTotalMargin(dc, & GetBuffer(), GetBuffer().GetAttributes(), leftMargin, rightMargin,
1735 topMargin, bottomMargin);
1736 }
1737 clientSize.y -= (int) (0.5 + bottomMargin * GetScale());
1738
1739 if (GetWindowStyle() & wxRE_CENTRE_CARET)
1740 {
1741 int y = rect.y - GetClientSize().y/2;
1742 int yUnits = (int) (0.5 + ((float) y)/(float) ppuY);
1743 if (y >= 0 && (y + clientSize.y) < (int) (0.5 + GetBuffer().GetCachedSize().y * GetScale()))
1744 {
1745 if (startYUnits != yUnits)
1746 {
1747 SetScrollbars(ppuX, ppuY, sxUnits, syUnits, 0, yUnits);
1748 scrolled = true;
1749 }
1750#if !wxRICHTEXT_USE_OWN_CARET
1751 if (scrolled)
1752#endif
1753 PositionCaret();
1754
1755 return scrolled;
1756 }
1757 }
1758
1759 // Going down
1760 if (keyCode == WXK_DOWN || keyCode == WXK_NUMPAD_DOWN ||
1761 keyCode == WXK_RIGHT || keyCode == WXK_NUMPAD_RIGHT ||
1762 keyCode == WXK_END || keyCode == WXK_NUMPAD_END ||
1763 keyCode == WXK_PAGEDOWN || keyCode == WXK_NUMPAD_PAGEDOWN)
1764 {
1765 if ((rect.y + rect.height) > (clientSize.y + startY))
1766 {
1767 // Make it scroll so this item is at the bottom
1768 // of the window
1769 int y = rect.y - (clientSize.y - rect.height);
1770 int yUnits = (int) (0.5 + ((float) y)/(float) ppuY);
1771
1772 // If we're still off the screen, scroll another line down
1773 if ((rect.y + rect.height) > (clientSize.y + (yUnits*ppuY)))
1774 yUnits ++;
1775
1776 if (startYUnits != yUnits)
1777 {
1778 SetScrollbars(ppuX, ppuY, sxUnits, syUnits, 0, yUnits);
1779 scrolled = true;
1780 }
1781 }
1782 else if (rect.y < (startY + (int) (0.5 + GetBuffer().GetTopMargin() * GetScale())))
1783 {
1784 // Make it scroll so this item is at the top
1785 // of the window
1786 int y = rect.y - (int) (0.5 + GetBuffer().GetTopMargin() * GetScale());
1787 int yUnits = (int) (0.5 + ((float) y)/(float) ppuY);
1788
1789 if (startYUnits != yUnits)
1790 {
1791 SetScrollbars(ppuX, ppuY, sxUnits, syUnits, 0, yUnits);
1792 scrolled = true;
1793 }
1794 }
1795 }
1796 // Going up
1797 else if (keyCode == WXK_UP || keyCode == WXK_NUMPAD_UP ||
1798 keyCode == WXK_LEFT || keyCode == WXK_NUMPAD_LEFT ||
1799 keyCode == WXK_HOME || keyCode == WXK_NUMPAD_HOME ||
1800 keyCode == WXK_PAGEUP || keyCode == WXK_NUMPAD_PAGEUP )
1801 {
1802 if (rect.y < (startY + (int) (0.5 + GetBuffer().GetBottomMargin() * GetScale())))
1803 {
1804 // Make it scroll so this item is at the top
1805 // of the window
1806 int y = rect.y - (int) (0.5 + GetBuffer().GetTopMargin() * GetScale());
1807 int yUnits = (int) (0.5 + ((float) y)/(float) ppuY);
1808
1809 if (startYUnits != yUnits)
1810 {
1811 SetScrollbars(ppuX, ppuY, sxUnits, syUnits, 0, yUnits);
1812 scrolled = true;
1813 }
1814 }
1815 else if ((rect.y + rect.height) > (clientSize.y + startY))
1816 {
1817 // Make it scroll so this item is at the bottom
1818 // of the window
1819 int y = rect.y - (clientSize.y - rect.height);
1820 int yUnits = (int) (0.5 + ((float) y)/(float) ppuY);
1821
1822 // If we're still off the screen, scroll another line down
1823 if ((rect.y + rect.height) > (clientSize.y + (yUnits*ppuY)))
1824 yUnits ++;
1825
1826 if (startYUnits != yUnits)
1827 {
1828 SetScrollbars(ppuX, ppuY, sxUnits, syUnits, 0, yUnits);
1829 scrolled = true;
1830 }
1831 }
1832 }
1833
1834#if !wxRICHTEXT_USE_OWN_CARET
1835 if (scrolled)
1836#endif
1837 PositionCaret();
1838
1839 return scrolled;
1840}
1841
1842/// Is the given position visible on the screen?
1843bool wxRichTextCtrl::IsPositionVisible(long pos) const
1844{
1845 wxRichTextLine* line = GetVisibleLineForCaretPosition(pos-1);
1846
1847 if (!line)
1848 return false;
1849
1850 int ppuX, ppuY;
1851 GetScrollPixelsPerUnit(& ppuX, & ppuY);
1852
1853 int startX, startY;
1854 GetViewStart(& startX, & startY);
1855 startX = 0;
1856 startY = startY * ppuY;
1857
1858 wxRect rect = GetScaledRect(line->GetRect());
1859 wxSize clientSize = GetClientSize();
1860 clientSize.y -= (int) (0.5 + GetBuffer().GetBottomMargin() * GetScale());
1861
1862 return (rect.GetTop() >= (startY + (int) (0.5 + GetBuffer().GetTopMargin() * GetScale()))) &&
1863 (rect.GetBottom() <= (startY + clientSize.y));
1864}
1865
1866void wxRichTextCtrl::SetCaretPosition(long position, bool showAtLineStart)
1867{
1868 m_caretPosition = position;
1869 m_caretAtLineStart = showAtLineStart;
1870}
1871
1872/// Move caret one visual step forward: this may mean setting a flag
1873/// and keeping the same position if we're going from the end of one line
1874/// to the start of the next, which may be the exact same caret position.
1875void wxRichTextCtrl::MoveCaretForward(long oldPosition)
1876{
1877 wxRichTextParagraph* para = GetFocusObject()->GetParagraphAtPosition(oldPosition);
1878
1879 // Only do the check if we're not at the end of the paragraph (where things work OK
1880 // anyway)
1881 if (para && (oldPosition != para->GetRange().GetEnd() - 1))
1882 {
1883 wxRichTextLine* line = GetFocusObject()->GetLineAtPosition(oldPosition);
1884
1885 if (line)
1886 {
1887 wxRichTextRange lineRange = line->GetAbsoluteRange();
1888
1889 // We're at the end of a line. See whether we need to
1890 // stay at the same actual caret position but change visual
1891 // position, or not.
1892 if (oldPosition == lineRange.GetEnd())
1893 {
1894 if (m_caretAtLineStart)
1895 {
1896 // We're already at the start of the line, so actually move on now.
1897 m_caretPosition = oldPosition + 1;
1898 m_caretAtLineStart = false;
1899 }
1900 else
1901 {
1902 // We're showing at the end of the line, so keep to
1903 // the same position but indicate that we're to show
1904 // at the start of the next line.
1905 m_caretPosition = oldPosition;
1906 m_caretAtLineStart = true;
1907 }
1908 SetDefaultStyleToCursorStyle();
1909 return;
1910 }
1911 }
1912 }
1913 m_caretPosition ++;
1914 SetDefaultStyleToCursorStyle();
1915}
1916
1917/// Move caret one visual step backward: this may mean setting a flag
1918/// and keeping the same position if we're going from the end of one line
1919/// to the start of the next, which may be the exact same caret position.
1920void wxRichTextCtrl::MoveCaretBack(long oldPosition)
1921{
1922 wxRichTextParagraph* para = GetFocusObject()->GetParagraphAtPosition(oldPosition);
1923
1924 // Only do the check if we're not at the start of the paragraph (where things work OK
1925 // anyway)
1926 if (para && (oldPosition != para->GetRange().GetStart()))
1927 {
1928 wxRichTextLine* line = GetFocusObject()->GetLineAtPosition(oldPosition);
1929
1930 if (line)
1931 {
1932 wxRichTextRange lineRange = line->GetAbsoluteRange();
1933
1934 // We're at the start of a line. See whether we need to
1935 // stay at the same actual caret position but change visual
1936 // position, or not.
1937 if (oldPosition == lineRange.GetStart())
1938 {
1939 m_caretPosition = oldPosition-1;
1940 m_caretAtLineStart = true;
1941 return;
1942 }
1943 else if (oldPosition == lineRange.GetEnd())
1944 {
1945 if (m_caretAtLineStart)
1946 {
1947 // We're at the start of the line, so keep the same caret position
1948 // but clear the start-of-line flag.
1949 m_caretPosition = oldPosition;
1950 m_caretAtLineStart = false;
1951 }
1952 else
1953 {
1954 // We're showing at the end of the line, so go back
1955 // to the previous character position.
1956 m_caretPosition = oldPosition - 1;
1957 }
1958 SetDefaultStyleToCursorStyle();
1959 return;
1960 }
1961 }
1962 }
1963 m_caretPosition --;
1964 SetDefaultStyleToCursorStyle();
1965}
1966
1967/// Move right
1968bool wxRichTextCtrl::MoveRight(int noPositions, int flags)
1969{
1970 long endPos = GetFocusObject()->GetOwnRange().GetEnd();
1971
1972 if (m_caretPosition + noPositions < endPos)
1973 {
1974 long oldPos = m_caretPosition;
1975 long newPos = m_caretPosition + noPositions;
1976
1977 bool extendSel = ExtendSelection(m_caretPosition, newPos, flags);
1978 if (!extendSel)
1979 SelectNone();
1980
1981 // Determine by looking at oldPos and m_caretPosition whether
1982 // we moved from the end of a line to the start of the next line, in which case
1983 // we want to adjust the caret position such that it is positioned at the
1984 // start of the next line, rather than jumping past the first character of the
1985 // line.
1986 if (noPositions == 1)
1987 MoveCaretForward(oldPos);
1988 else
1989 SetCaretPosition(newPos);
1990
1991 PositionCaret();
1992 SetDefaultStyleToCursorStyle();
1993
1994 return true;
1995 }
1996 else
1997 return false;
1998}
1999
2000/// Move left
2001bool wxRichTextCtrl::MoveLeft(int noPositions, int flags)
2002{
2003 long startPos = -1;
2004
2005 if (m_caretPosition > startPos - noPositions + 1)
2006 {
2007 long oldPos = m_caretPosition;
2008 long newPos = m_caretPosition - noPositions;
2009 bool extendSel = ExtendSelection(m_caretPosition, newPos, flags);
2010 if (!extendSel)
2011 SelectNone();
2012
2013 if (noPositions == 1)
2014 MoveCaretBack(oldPos);
2015 else
2016 SetCaretPosition(newPos);
2017
2018 PositionCaret();
2019 SetDefaultStyleToCursorStyle();
2020
2021 return true;
2022 }
2023 else
2024 return false;
2025}
2026
2027// Find the caret position for the combination of hit-test flags and character position.
2028// Returns the caret position and also an indication of where to place the caret (caretLineStart)
2029// since this is ambiguous (same position used for end of line and start of next).
2030long wxRichTextCtrl::FindCaretPositionForCharacterPosition(long position, int hitTestFlags, wxRichTextParagraphLayoutBox* container,
2031 bool& caretLineStart)
2032{
2033 // If end of previous line, and hitTest is wxRICHTEXT_HITTEST_BEFORE,
2034 // we want to be at the end of the last line but with m_caretAtLineStart set to true,
2035 // so we view the caret at the start of the line.
2036 caretLineStart = false;
2037 long caretPosition = position;
2038
2039 if (hitTestFlags & wxRICHTEXT_HITTEST_BEFORE)
2040 {
2041 wxRichTextLine* thisLine = container->GetLineAtPosition(position-1);
2042 wxRichTextRange lineRange;
2043 if (thisLine)
2044 lineRange = thisLine->GetAbsoluteRange();
2045
2046 if (thisLine && (position-1) == lineRange.GetEnd())
2047 {
2048 caretPosition --;
2049 caretLineStart = true;
2050 }
2051 else
2052 {
2053 wxRichTextParagraph* para = container->GetParagraphAtPosition(position);
2054 if (para && para->GetRange().GetStart() == position)
2055 caretPosition --;
2056 }
2057 }
2058 return caretPosition;
2059}
2060
2061/// Move up
2062bool wxRichTextCtrl::MoveUp(int noLines, int flags)
2063{
2064 return MoveDown(- noLines, flags);
2065}
2066
2067/// Move up
2068bool wxRichTextCtrl::MoveDown(int noLines, int flags)
2069{
2070 if (!GetCaret())
2071 return false;
2072
2073 long lineNumber = GetFocusObject()->GetVisibleLineNumber(m_caretPosition, true, m_caretAtLineStart);
2074 wxPoint pt = GetCaret()->GetPosition();
2075 long newLine = lineNumber + noLines;
2076 bool notInThisObject = false;
2077
2078 if (lineNumber != -1)
2079 {
2080 if (noLines > 0)
2081 {
2082 long lastLine = GetFocusObject()->GetVisibleLineNumber(GetFocusObject()->GetOwnRange().GetEnd());
2083 if (newLine > lastLine)
2084 notInThisObject = true;
2085 }
2086 else
2087 {
2088 if (newLine < 0)
2089 notInThisObject = true;
2090 }
2091 }
2092
2093 wxRichTextParagraphLayoutBox* container = GetFocusObject();
2094 int hitTestFlags = wxRICHTEXT_HITTEST_NO_NESTED_OBJECTS|wxRICHTEXT_HITTEST_NO_FLOATING_OBJECTS|wxRICHTEXT_HITTEST_HONOUR_ATOMIC;
2095
2096 bool lineIsEmpty = false;
2097 if (notInThisObject)
2098 {
2099 // If we know we're navigating out of the current object,
2100 // try to find an object anywhere in the buffer at the new position (up or down a bit)
2101 container = & GetBuffer();
2102 hitTestFlags &= ~wxRICHTEXT_HITTEST_NO_NESTED_OBJECTS;
2103
2104 if (noLines > 0) // going down
2105 {
2106 pt.y = GetFocusObject()->GetPosition().y + GetFocusObject()->GetCachedSize().y + 2;
2107 }
2108 else // going up
2109 {
2110 pt.y = GetFocusObject()->GetPosition().y - 2;
2111 }
2112 }
2113 else
2114 {
2115 wxRichTextLine* lineObj = GetFocusObject()->GetLineForVisibleLineNumber(newLine);
2116 if (lineObj)
2117 {
2118 pt.y = lineObj->GetAbsolutePosition().y + 2;
2119 if (lineObj->GetRange().GetStart() == lineObj->GetRange().GetEnd())
2120 lineIsEmpty = true;
2121 }
2122 else
2123 return false;
2124 }
2125
2126 long newPos = 0;
2127 wxClientDC dc(this);
2128 PrepareDC(dc);
2129 dc.SetFont(GetFont());
2130
2131 wxRichTextObject* hitObj = NULL;
2132 wxRichTextObject* contextObj = NULL;
2133 wxRichTextDrawingContext context(& GetBuffer());
2134 int hitTest = container->HitTest(dc, context, pt, newPos, & hitObj, & contextObj, hitTestFlags);
2135
2136 if (hitObj &&
2137 ((hitTest & wxRICHTEXT_HITTEST_NONE) == 0) &&
2138 (! (hitObj == (& m_buffer) && ((hitTest & wxRICHTEXT_HITTEST_OUTSIDE) != 0))) // outside the buffer counts as 'do nothing'
2139 )
2140 {
2141 if (notInThisObject)
2142 {
2143 wxRichTextParagraphLayoutBox* actualContainer = wxDynamicCast(contextObj, wxRichTextParagraphLayoutBox);
2144 if (actualContainer && actualContainer != GetFocusObject() && actualContainer->AcceptsFocus())
2145 {
2146 SetFocusObject(actualContainer, false /* don't set caret position yet */);
2147
2148 container = actualContainer;
2149 }
2150 }
2151
2152 bool caretLineStart = true;
2153
2154 // If the line is empty, there is only one possible position for the caret,
2155 // so force the 'before' state so FindCaretPositionForCharacterPosition doesn't
2156 // just return the same position.
2157 if (lineIsEmpty)
2158 {
2159 hitTest &= ~wxRICHTEXT_HITTEST_AFTER;
2160 hitTest |= wxRICHTEXT_HITTEST_BEFORE;
2161 }
2162 long caretPosition = FindCaretPositionForCharacterPosition(newPos, hitTest, container, caretLineStart);
2163 long newSelEnd = caretPosition;
2164 bool extendSel;
2165
2166 if (notInThisObject)
2167 extendSel = false;
2168 else
2169 extendSel = ExtendSelection(m_caretPosition, newSelEnd, flags);
2170
2171 if (!extendSel)
2172 SelectNone();
2173
2174 SetCaretPosition(caretPosition, caretLineStart);
2175 PositionCaret();
2176 SetDefaultStyleToCursorStyle();
2177
2178 return true;
2179 }
2180
2181 return false;
2182}
2183
2184/// Move to the end of the paragraph
2185bool wxRichTextCtrl::MoveToParagraphEnd(int flags)
2186{
2187 wxRichTextParagraph* para = GetFocusObject()->GetParagraphAtPosition(m_caretPosition, true);
2188 if (para)
2189 {
2190 long newPos = para->GetRange().GetEnd() - 1;
2191 bool extendSel = ExtendSelection(m_caretPosition, newPos, flags);
2192 if (!extendSel)
2193 SelectNone();
2194
2195 SetCaretPosition(newPos);
2196 PositionCaret();
2197 SetDefaultStyleToCursorStyle();
2198
2199 return true;
2200 }
2201
2202 return false;
2203}
2204
2205/// Move to the start of the paragraph
2206bool wxRichTextCtrl::MoveToParagraphStart(int flags)
2207{
2208 wxRichTextParagraph* para = GetFocusObject()->GetParagraphAtPosition(m_caretPosition, true);
2209 if (para)
2210 {
2211 long newPos = para->GetRange().GetStart() - 1;
2212 bool extendSel = ExtendSelection(m_caretPosition, newPos, flags);
2213 if (!extendSel)
2214 SelectNone();
2215
2216 SetCaretPosition(newPos, true);
2217 PositionCaret();
2218 SetDefaultStyleToCursorStyle();
2219
2220 return true;
2221 }
2222
2223 return false;
2224}
2225
2226/// Move to the end of the line
2227bool wxRichTextCtrl::MoveToLineEnd(int flags)
2228{
2229 wxRichTextLine* line = GetVisibleLineForCaretPosition(m_caretPosition);
2230
2231 if (line)
2232 {
2233 wxRichTextRange lineRange = line->GetAbsoluteRange();
2234 long newPos = lineRange.GetEnd();
2235 bool extendSel = ExtendSelection(m_caretPosition, newPos, flags);
2236 if (!extendSel)
2237 SelectNone();
2238
2239 SetCaretPosition(newPos);
2240 PositionCaret();
2241 SetDefaultStyleToCursorStyle();
2242
2243 return true;
2244 }
2245
2246 return false;
2247}
2248
2249/// Move to the start of the line
2250bool wxRichTextCtrl::MoveToLineStart(int flags)
2251{
2252 wxRichTextLine* line = GetVisibleLineForCaretPosition(m_caretPosition);
2253 if (line)
2254 {
2255 wxRichTextRange lineRange = line->GetAbsoluteRange();
2256 long newPos = lineRange.GetStart()-1;
2257
2258 bool extendSel = ExtendSelection(m_caretPosition, newPos, flags);
2259 if (!extendSel)
2260 SelectNone();
2261
2262 wxRichTextParagraph* para = GetFocusObject()->GetParagraphForLine(line);
2263
2264 SetCaretPosition(newPos, para->GetRange().GetStart() != lineRange.GetStart());
2265 PositionCaret();
2266 SetDefaultStyleToCursorStyle();
2267
2268 return true;
2269 }
2270
2271 return false;
2272}
2273
2274/// Move to the start of the buffer
2275bool wxRichTextCtrl::MoveHome(int flags)
2276{
2277 if (m_caretPosition != -1)
2278 {
2279 bool extendSel = ExtendSelection(m_caretPosition, -1, flags);
2280 if (!extendSel)
2281 SelectNone();
2282
2283 SetCaretPosition(-1);
2284 PositionCaret();
2285 SetDefaultStyleToCursorStyle();
2286
2287 return true;
2288 }
2289 else
2290 return false;
2291}
2292
2293/// Move to the end of the buffer
2294bool wxRichTextCtrl::MoveEnd(int flags)
2295{
2296 long endPos = GetFocusObject()->GetOwnRange().GetEnd()-1;
2297
2298 if (m_caretPosition != endPos)
2299 {
2300 bool extendSel = ExtendSelection(m_caretPosition, endPos, flags);
2301 if (!extendSel)
2302 SelectNone();
2303
2304 SetCaretPosition(endPos);
2305 PositionCaret();
2306 SetDefaultStyleToCursorStyle();
2307
2308 return true;
2309 }
2310 else
2311 return false;
2312}
2313
2314/// Move noPages pages up
2315bool wxRichTextCtrl::PageUp(int noPages, int flags)
2316{
2317 return PageDown(- noPages, flags);
2318}
2319
2320/// Move noPages pages down
2321bool wxRichTextCtrl::PageDown(int noPages, int flags)
2322{
2323 // Calculate which line occurs noPages * screen height further down.
2324 wxRichTextLine* line = GetVisibleLineForCaretPosition(m_caretPosition);
2325 if (line)
2326 {
2327 wxSize clientSize = GetClientSize();
2328 int newY = line->GetAbsolutePosition().y + noPages*clientSize.y;
2329
2330 wxRichTextLine* newLine = GetFocusObject()->GetLineAtYPosition(newY);
2331 if (newLine)
2332 {
2333 wxRichTextRange lineRange = newLine->GetAbsoluteRange();
2334 long pos = lineRange.GetStart()-1;
2335 if (pos != m_caretPosition)
2336 {
2337 wxRichTextParagraph* para = GetFocusObject()->GetParagraphForLine(newLine);
2338
2339 bool extendSel = ExtendSelection(m_caretPosition, pos, flags);
2340 if (!extendSel)
2341 SelectNone();
2342
2343 SetCaretPosition(pos, para->GetRange().GetStart() != lineRange.GetStart());
2344 PositionCaret();
2345 SetDefaultStyleToCursorStyle();
2346
2347 return true;
2348 }
2349 }
2350 }
2351
2352 return false;
2353}
2354
2355static bool wxRichTextCtrlIsWhitespace(const wxString& str)
2356{
2357 return str == wxT(" ") || str == wxT("\t") || (!str.empty() && (str[0] == (wxChar) 160));
2358}
2359
2360// Finds the caret position for the next word
2361long wxRichTextCtrl::FindNextWordPosition(int direction) const
2362{
2363 long endPos = GetFocusObject()->GetOwnRange().GetEnd();
2364
2365 if (direction > 0)
2366 {
2367 long i = m_caretPosition+1+direction; // +1 for conversion to character pos
2368
2369 // First skip current text to space
2370 while (i < endPos && i > -1)
2371 {
2372 // i is in character, not caret positions
2373 wxString text = GetFocusObject()->GetTextForRange(wxRichTextRange(i, i));
2374 wxRichTextLine* line = GetFocusObject()->GetLineAtPosition(i, false);
2375 if (line && (i == line->GetAbsoluteRange().GetEnd()))
2376 {
2377 break;
2378 }
2379 else if (!wxRichTextCtrlIsWhitespace(text) && !text.empty())
2380 i += direction;
2381 else
2382 {
2383 break;
2384 }
2385 }
2386 while (i < endPos && i > -1)
2387 {
2388 // i is in character, not caret positions
2389 wxString text = GetFocusObject()->GetTextForRange(wxRichTextRange(i, i));
2390 wxRichTextLine* line = GetFocusObject()->GetLineAtPosition(i, false);
2391 if (line && (i == line->GetAbsoluteRange().GetEnd()))
2392 return wxMax(-1, i);
2393
2394 if (text.empty()) // End of paragraph, or maybe an image
2395 return wxMax(-1, i - 1);
2396 else if (wxRichTextCtrlIsWhitespace(text) || text.empty())
2397 i += direction;
2398 else
2399 {
2400 // Convert to caret position
2401 return wxMax(-1, i - 1);
2402 }
2403 }
2404 if (i >= endPos)
2405 return endPos-1;
2406 return i-1;
2407 }
2408 else
2409 {
2410 long i = m_caretPosition;
2411
2412 // First skip white space
2413 while (i < endPos && i > -1)
2414 {
2415 // i is in character, not caret positions
2416 wxString text = GetFocusObject()->GetTextForRange(wxRichTextRange(i, i));
2417 wxRichTextLine* line = GetFocusObject()->GetLineAtPosition(i, false);
2418
2419 if (text.empty() || (line && (i == line->GetAbsoluteRange().GetStart()))) // End of paragraph, or maybe an image
2420 break;
2421 else if (wxRichTextCtrlIsWhitespace(text) || text.empty())
2422 i += direction;
2423 else
2424 break;
2425 }
2426 // Next skip current text to space
2427 while (i < endPos && i > -1)
2428 {
2429 // i is in character, not caret positions
2430 wxString text = GetFocusObject()->GetTextForRange(wxRichTextRange(i, i));
2431 wxRichTextLine* line = GetFocusObject()->GetLineAtPosition(i, false);
2432 if (line && line->GetAbsoluteRange().GetStart() == i)
2433 return i-1;
2434
2435 if (!wxRichTextCtrlIsWhitespace(text) /* && !text.empty() */)
2436 i += direction;
2437 else
2438 {
2439 return i;
2440 }
2441 }
2442 if (i < -1)
2443 return -1;
2444 return i;
2445 }
2446}
2447
2448/// Move n words left
2449bool wxRichTextCtrl::WordLeft(int WXUNUSED(n), int flags)
2450{
2451 long pos = FindNextWordPosition(-1);
2452 if (pos != m_caretPosition)
2453 {
2454 wxRichTextParagraph* para = GetFocusObject()->GetParagraphAtPosition(pos, true);
2455
2456 bool extendSel = ExtendSelection(m_caretPosition, pos, flags);
2457 if (!extendSel)
2458 SelectNone();
2459
2460 SetCaretPosition(pos, para->GetRange().GetStart() != pos);
2461 PositionCaret();
2462 SetDefaultStyleToCursorStyle();
2463
2464 return true;
2465 }
2466
2467 return false;
2468}
2469
2470/// Move n words right
2471bool wxRichTextCtrl::WordRight(int WXUNUSED(n), int flags)
2472{
2473 long pos = FindNextWordPosition(1);
2474 if (pos != m_caretPosition)
2475 {
2476 wxRichTextParagraph* para = GetFocusObject()->GetParagraphAtPosition(pos, true);
2477
2478 bool extendSel = ExtendSelection(m_caretPosition, pos, flags);
2479 if (!extendSel)
2480 SelectNone();
2481
2482 SetCaretPosition(pos, para->GetRange().GetStart() != pos);
2483 PositionCaret();
2484 SetDefaultStyleToCursorStyle();
2485
2486 return true;
2487 }
2488
2489 return false;
2490}
2491
2492/// Sizing
2493void wxRichTextCtrl::OnSize(wxSizeEvent& event)
2494{
2495 // Only do sizing optimization for large buffers
2496 if (GetBuffer().GetOwnRange().GetEnd() > m_delayedLayoutThreshold)
2497 {
2498 m_fullLayoutRequired = true;
2499 m_fullLayoutTime = wxGetLocalTimeMillis();
2500 m_fullLayoutSavedPosition = GetFirstVisiblePosition();
2501 LayoutContent(true /* onlyVisibleRect */);
2502 }
2503 else
2504 GetBuffer().Invalidate(wxRICHTEXT_ALL);
2505
2506#if wxRICHTEXT_BUFFERED_PAINTING
2507 RecreateBuffer();
2508#endif
2509
2510 event.Skip();
2511}
2512
2513// Force any pending layout due to large buffer
2514void wxRichTextCtrl::ForceDelayedLayout()
2515{
2516 if (m_fullLayoutRequired)
2517 {
2518 m_fullLayoutRequired = false;
2519 m_fullLayoutTime = 0;
2520 GetBuffer().Invalidate(wxRICHTEXT_ALL);
2521 ShowPosition(m_fullLayoutSavedPosition);
2522 Refresh(false);
2523 Update();
2524 }
2525}
2526
2527/// Idle-time processing
2528void wxRichTextCtrl::OnIdle(wxIdleEvent& event)
2529{
2530#if wxRICHTEXT_USE_OWN_CARET
2531 if (((wxRichTextCaret*) GetCaret())->GetNeedsUpdate())
2532 {
2533 ((wxRichTextCaret*) GetCaret())->SetNeedsUpdate(false);
2534 PositionCaret();
2535 GetCaret()->Show();
2536 }
2537#endif
2538
2539 const int layoutInterval = wxRICHTEXT_DEFAULT_LAYOUT_INTERVAL;
2540
2541 if (m_fullLayoutRequired && (wxGetLocalTimeMillis() > (m_fullLayoutTime + layoutInterval)))
2542 {
2543 m_fullLayoutRequired = false;
2544 m_fullLayoutTime = 0;
2545 GetBuffer().Invalidate(wxRICHTEXT_ALL);
2546 ShowPosition(m_fullLayoutSavedPosition);
2547 Refresh(false);
2548 }
2549
2550 if (m_caretPositionForDefaultStyle != -2)
2551 {
2552 // If the caret position has changed, no longer reflect the default style
2553 // in the UI.
2554 if (GetCaretPosition() != m_caretPositionForDefaultStyle)
2555 m_caretPositionForDefaultStyle = -2;
2556 }
2557
2558 event.Skip();
2559}
2560
2561/// Scrolling
2562void wxRichTextCtrl::OnScroll(wxScrollWinEvent& event)
2563{
2564#if wxRICHTEXT_USE_OWN_CARET
2565 if (!((wxRichTextCaret*) GetCaret())->GetNeedsUpdate())
2566 {
2567 GetCaret()->Hide();
2568 ((wxRichTextCaret*) GetCaret())->SetNeedsUpdate();
2569 }
2570#endif
2571
2572 event.Skip();
2573}
2574
2575/// Set up scrollbars, e.g. after a resize
2576void wxRichTextCtrl::SetupScrollbars(bool atTop)
2577{
2578 if (IsFrozen())
2579 return;
2580
2581 if (GetBuffer().IsEmpty() || !m_verticalScrollbarEnabled)
2582 {
2583 SetScrollbars(0, 0, 0, 0, 0, 0);
2584 return;
2585 }
2586
2587 // TODO: reimplement scrolling so we scroll by line, not by fixed number
2588 // of pixels. See e.g. wxVScrolledWindow for ideas.
2589 int pixelsPerUnit = 5;
2590 wxSize clientSize = GetClientSize();
2591
2592 int maxHeight = (int) (0.5 + GetScale() * (GetBuffer().GetCachedSize().y + GetBuffer().GetTopMargin()));
2593
2594 // Round up so we have at least maxHeight pixels
2595 int unitsY = (int) (((float)maxHeight/(float)pixelsPerUnit) + 0.5);
2596
2597 int startX = 0, startY = 0;
2598 if (!atTop)
2599 GetViewStart(& startX, & startY);
2600
2601 int maxPositionX = 0;
2602 int maxPositionY = (int) ((((float)(wxMax((unitsY*pixelsPerUnit) - clientSize.y, 0)))/((float)pixelsPerUnit)) + 0.5);
2603
2604 int newStartX = wxMin(maxPositionX, startX);
2605 int newStartY = wxMin(maxPositionY, startY);
2606
2607 int oldPPUX, oldPPUY;
2608 int oldStartX, oldStartY;
2609 int oldVirtualSizeX = 0, oldVirtualSizeY = 0;
2610 GetScrollPixelsPerUnit(& oldPPUX, & oldPPUY);
2611 GetViewStart(& oldStartX, & oldStartY);
2612 GetVirtualSize(& oldVirtualSizeX, & oldVirtualSizeY);
2613 if (oldPPUY > 0)
2614 oldVirtualSizeY /= oldPPUY;
2615
2616 if (oldPPUX == 0 && oldPPUY == pixelsPerUnit && oldVirtualSizeY == unitsY && oldStartX == newStartX && oldStartY == newStartY)
2617 return;
2618
2619 // Don't set scrollbars if there were none before, and there will be none now.
2620 if (oldPPUY != 0 && (oldVirtualSizeY*oldPPUY < clientSize.y) && (unitsY*pixelsPerUnit < clientSize.y))
2621 return;
2622
2623 // Move to previous scroll position if
2624 // possible
2625 SetScrollbars(0, pixelsPerUnit, 0, unitsY, newStartX, newStartY);
2626}
2627
2628/// Paint the background
2629void wxRichTextCtrl::PaintBackground(wxDC& dc)
2630{
2631 wxColour backgroundColour = GetBackgroundColour();
2632 if (!backgroundColour.IsOk())
2633 backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
2634
2635 // Clear the background
2636 dc.SetBrush(wxBrush(backgroundColour));
2637 dc.SetPen(*wxTRANSPARENT_PEN);
2638 wxRect windowRect(GetClientSize());
2639 windowRect.x -= 2; windowRect.y -= 2;
2640 windowRect.width += 4; windowRect.height += 4;
2641
2642 // We need to shift the rectangle to take into account
2643 // scrolling. Converting device to logical coordinates.
2644 CalcUnscrolledPosition(windowRect.x, windowRect.y, & windowRect.x, & windowRect.y);
2645 dc.DrawRectangle(windowRect);
2646}
2647
2648#if wxRICHTEXT_BUFFERED_PAINTING
2649/// Recreate buffer bitmap if necessary
2650bool wxRichTextCtrl::RecreateBuffer(const wxSize& size)
2651{
2652 wxSize sz = size;
2653 if (sz == wxDefaultSize)
2654 sz = GetClientSize();
2655
2656 if (sz.x < 1 || sz.y < 1)
2657 return false;
2658
2659 if (!m_bufferBitmap.IsOk() || m_bufferBitmap.GetWidth() < sz.x || m_bufferBitmap.GetHeight() < sz.y)
2660 m_bufferBitmap = wxBitmap(sz.x, sz.y);
2661 return m_bufferBitmap.IsOk();
2662}
2663#endif
2664
2665// ----------------------------------------------------------------------------
2666// file IO functions
2667// ----------------------------------------------------------------------------
2668
2669bool wxRichTextCtrl::DoLoadFile(const wxString& filename, int fileType)
2670{
2671 SetFocusObject(& GetBuffer(), true);
2672
2673 bool success = GetBuffer().LoadFile(filename, (wxRichTextFileType)fileType);
2674 if (success)
2675 m_filename = filename;
2676
2677 DiscardEdits();
2678 SetInsertionPoint(0);
2679 LayoutContent();
2680 PositionCaret();
2681 SetupScrollbars(true);
2682 Refresh(false);
2683 wxTextCtrl::SendTextUpdatedEvent(this);
2684
2685 if (success)
2686 return true;
2687 else
2688 {
2689 wxLogError(_("File couldn't be loaded."));
2690
2691 return false;
2692 }
2693}
2694
2695bool wxRichTextCtrl::DoSaveFile(const wxString& filename, int fileType)
2696{
2697 if (GetBuffer().SaveFile(filename, (wxRichTextFileType)fileType))
2698 {
2699 m_filename = filename;
2700
2701 DiscardEdits();
2702
2703 return true;
2704 }
2705
2706 wxLogError(_("The text couldn't be saved."));
2707
2708 return false;
2709}
2710
2711// ----------------------------------------------------------------------------
2712// wxRichTextCtrl specific functionality
2713// ----------------------------------------------------------------------------
2714
2715/// Add a new paragraph of text to the end of the buffer
2716wxRichTextRange wxRichTextCtrl::AddParagraph(const wxString& text)
2717{
2718 wxRichTextRange range = GetFocusObject()->AddParagraph(text);
2719 GetBuffer().Invalidate();
2720 LayoutContent();
2721 return range;
2722}
2723
2724/// Add an image
2725wxRichTextRange wxRichTextCtrl::AddImage(const wxImage& image)
2726{
2727 wxRichTextRange range = GetFocusObject()->AddImage(image);
2728 GetBuffer().Invalidate();
2729 LayoutContent();
2730 return range;
2731}
2732
2733// ----------------------------------------------------------------------------
2734// selection and ranges
2735// ----------------------------------------------------------------------------
2736
2737/// Select none
2738void wxRichTextCtrl::SelectNone()
2739{
2740 if (m_selection.IsValid())
2741 {
2742 wxRichTextSelection oldSelection = m_selection;
2743
2744 m_selection.Reset();
2745
2746 RefreshForSelectionChange(oldSelection, m_selection);
2747 }
2748 m_selectionAnchor = -2;
2749 m_selectionAnchorObject = NULL;
2750 m_selectionState = wxRichTextCtrlSelectionState_Normal;
2751}
2752
2753static bool wxIsWordDelimiter(const wxString& text)
2754{
2755 return !text.IsEmpty() && !wxIsalnum(text[0]);
2756}
2757
2758/// Select the word at the given character position
2759bool wxRichTextCtrl::SelectWord(long position)
2760{
2761 if (position < 0 || position > GetFocusObject()->GetOwnRange().GetEnd())
2762 return false;
2763
2764 wxRichTextParagraph* para = GetFocusObject()->GetParagraphAtPosition(position);
2765 if (!para)
2766 return false;
2767
2768 if (position == para->GetRange().GetEnd())
2769 position --;
2770
2771 long positionStart = position;
2772 long positionEnd = position;
2773
2774 for (positionStart = position; positionStart >= para->GetRange().GetStart(); positionStart --)
2775 {
2776 wxString text = GetFocusObject()->GetTextForRange(wxRichTextRange(positionStart, positionStart));
2777 if (wxIsWordDelimiter(text))
2778 {
2779 positionStart ++;
2780 break;
2781 }
2782 }
2783 if (positionStart < para->GetRange().GetStart())
2784 positionStart = para->GetRange().GetStart();
2785
2786 for (positionEnd = position; positionEnd < para->GetRange().GetEnd(); positionEnd ++)
2787 {
2788 wxString text = GetFocusObject()->GetTextForRange(wxRichTextRange(positionEnd, positionEnd));
2789 if (wxIsWordDelimiter(text))
2790 {
2791 positionEnd --;
2792 break;
2793 }
2794 }
2795 if (positionEnd >= para->GetRange().GetEnd())
2796 positionEnd = para->GetRange().GetEnd();
2797
2798 if (positionEnd < positionStart)
2799 return false;
2800
2801 SetSelection(positionStart, positionEnd+1);
2802
2803 if (positionStart >= 0)
2804 {
2805 MoveCaret(positionStart-1, true);
2806 SetDefaultStyleToCursorStyle();
2807 }
2808
2809 return true;
2810}
2811
2812wxString wxRichTextCtrl::GetStringSelection() const
2813{
2814 long from, to;
2815 GetSelection(&from, &to);
2816
2817 return GetRange(from, to);
2818}
2819
2820// ----------------------------------------------------------------------------
2821// hit testing
2822// ----------------------------------------------------------------------------
2823
2824wxTextCtrlHitTestResult
2825wxRichTextCtrl::HitTest(const wxPoint& pt, wxTextCoord *x, wxTextCoord *y) const
2826{
2827 // implement in terms of the other overload as the native ports typically
2828 // can get the position and not (x, y) pair directly (although wxUniv
2829 // directly gets x and y -- and so overrides this method as well)
2830 long pos;
2831 wxTextCtrlHitTestResult rc = HitTest(pt, &pos);
2832
2833 if ( rc != wxTE_HT_UNKNOWN )
2834 {
2835 PositionToXY(pos, x, y);
2836 }
2837
2838 return rc;
2839}
2840
2841wxTextCtrlHitTestResult
2842wxRichTextCtrl::HitTest(const wxPoint& pt,
2843 long * pos) const
2844{
2845 wxClientDC dc((wxRichTextCtrl*) this);
2846 ((wxRichTextCtrl*)this)->PrepareDC(dc);
2847
2848 // Buffer uses logical position (relative to start of buffer)
2849 // so convert
2850 wxPoint pt2 = GetLogicalPoint(pt);
2851
2852 wxRichTextObject* hitObj = NULL;
2853 wxRichTextObject* contextObj = NULL;
2854 wxRichTextDrawingContext context((wxRichTextBuffer*) & GetBuffer());
2855 int hit = ((wxRichTextCtrl*)this)->GetFocusObject()->HitTest(dc, context, pt2, *pos, & hitObj, & contextObj, wxRICHTEXT_HITTEST_NO_NESTED_OBJECTS);
2856
2857 if ((hit & wxRICHTEXT_HITTEST_BEFORE) && (hit & wxRICHTEXT_HITTEST_OUTSIDE))
2858 return wxTE_HT_BEFORE;
2859 else if ((hit & wxRICHTEXT_HITTEST_AFTER) && (hit & wxRICHTEXT_HITTEST_OUTSIDE))
2860 return wxTE_HT_BEYOND;
2861 else if (hit & (wxRICHTEXT_HITTEST_BEFORE|wxRICHTEXT_HITTEST_AFTER))
2862 return wxTE_HT_ON_TEXT;
2863
2864 return wxTE_HT_UNKNOWN;
2865}
2866
2867wxRichTextParagraphLayoutBox*
2868wxRichTextCtrl::FindContainerAtPoint(const wxPoint pt, long& position, int& hit, wxRichTextObject* hitObj, int flags/* = 0*/)
2869{
2870 wxClientDC dc(this);
2871 PrepareDC(dc);
2872 dc.SetFont(GetFont());
2873
2874 wxPoint logicalPt = GetLogicalPoint(pt);
2875
2876 wxRichTextObject* contextObj = NULL;
2877 wxRichTextDrawingContext context(& GetBuffer());
2878 hit = GetBuffer().HitTest(dc, context, GetUnscaledPoint(logicalPt), position, &hitObj, &contextObj, flags);
2879 wxRichTextParagraphLayoutBox* container = wxDynamicCast(contextObj, wxRichTextParagraphLayoutBox);
2880
2881 return container;
2882}
2883
2884
2885// ----------------------------------------------------------------------------
2886// set/get the controls text
2887// ----------------------------------------------------------------------------
2888
2889wxString wxRichTextCtrl::DoGetValue() const
2890{
2891 return GetBuffer().GetText();
2892}
2893
2894wxString wxRichTextCtrl::GetRange(long from, long to) const
2895{
2896 // Public API for range is different from internals
2897 return GetFocusObject()->GetTextForRange(wxRichTextRange(from, to-1));
2898}
2899
2900void wxRichTextCtrl::DoSetValue(const wxString& value, int flags)
2901{
2902 // Don't call Clear here, since it always sends a text updated event
2903 m_buffer.ResetAndClearCommands();
2904 m_buffer.Invalidate(wxRICHTEXT_ALL);
2905 m_caretPosition = -1;
2906 m_caretPositionForDefaultStyle = -2;
2907 m_caretAtLineStart = false;
2908 m_selection.Reset();
2909 m_selectionState = wxRichTextCtrlSelectionState_Normal;
2910
2911 Scroll(0,0);
2912
2913 if (!IsFrozen())
2914 {
2915 LayoutContent();
2916 Refresh(false);
2917 }
2918
2919 if (!value.IsEmpty())
2920 {
2921 // Remove empty paragraph
2922 GetBuffer().Clear();
2923 DoWriteText(value, flags);
2924
2925 // for compatibility, don't move the cursor when doing SetValue()
2926 SetInsertionPoint(0);
2927 }
2928 else
2929 {
2930 // still send an event for consistency
2931 if (flags & SetValue_SendEvent)
2932 wxTextCtrl::SendTextUpdatedEvent(this);
2933 }
2934 DiscardEdits();
2935}
2936
2937void wxRichTextCtrl::WriteText(const wxString& value)
2938{
2939 DoWriteText(value);
2940}
2941
2942void wxRichTextCtrl::DoWriteText(const wxString& value, int flags)
2943{
2944 wxString valueUnix = wxTextFile::Translate(value, wxTextFileType_Unix);
2945
2946 GetFocusObject()->InsertTextWithUndo(& GetBuffer(), m_caretPosition+1, valueUnix, this, wxRICHTEXT_INSERT_WITH_PREVIOUS_PARAGRAPH_STYLE);
2947 wxRichTextDrawingContext context(& GetBuffer());
2948 GetBuffer().Defragment(context);
2949
2950 if ( flags & SetValue_SendEvent )
2951 wxTextCtrl::SendTextUpdatedEvent(this);
2952}
2953
2954void wxRichTextCtrl::AppendText(const wxString& text)
2955{
2956 SetInsertionPointEnd();
2957
2958 WriteText(text);
2959}
2960
2961/// Write an image at the current insertion point
2962bool wxRichTextCtrl::WriteImage(const wxImage& image, wxBitmapType bitmapType, const wxRichTextAttr& textAttr)
2963{
2964 wxRichTextImageBlock imageBlock;
2965
2966 wxImage image2 = image;
2967 if (imageBlock.MakeImageBlock(image2, bitmapType))
2968 return WriteImage(imageBlock, textAttr);
2969
2970 return false;
2971}
2972
2973bool wxRichTextCtrl::WriteImage(const wxString& filename, wxBitmapType bitmapType, const wxRichTextAttr& textAttr)
2974{
2975 wxRichTextImageBlock imageBlock;
2976
2977 wxImage image;
2978 if (imageBlock.MakeImageBlock(filename, bitmapType, image, false))
2979 return WriteImage(imageBlock, textAttr);
2980
2981 return false;
2982}
2983
2984bool wxRichTextCtrl::WriteImage(const wxRichTextImageBlock& imageBlock, const wxRichTextAttr& textAttr)
2985{
2986 return GetFocusObject()->InsertImageWithUndo(& GetBuffer(), m_caretPosition+1, imageBlock, this, 0, textAttr);
2987}
2988
2989bool wxRichTextCtrl::WriteImage(const wxBitmap& bitmap, wxBitmapType bitmapType, const wxRichTextAttr& textAttr)
2990{
2991 if (bitmap.IsOk())
2992 {
2993 wxRichTextImageBlock imageBlock;
2994
2995 wxImage image = bitmap.ConvertToImage();
2996 if (image.IsOk() && imageBlock.MakeImageBlock(image, bitmapType))
2997 return WriteImage(imageBlock, textAttr);
2998 }
2999
3000 return false;
3001}
3002
3003// Write a text box at the current insertion point.
3004wxRichTextBox* wxRichTextCtrl::WriteTextBox(const wxRichTextAttr& textAttr)
3005{
3006 wxRichTextBox* textBox = new wxRichTextBox;
3007 textBox->SetAttributes(textAttr);
3008 textBox->SetParent(& GetBuffer()); // set parent temporarily for AddParagraph to use correct style
3009 textBox->AddParagraph(wxEmptyString);
3010 textBox->SetParent(NULL);
3011
3012 // The object returned is the one actually inserted into the buffer,
3013 // while the original one is deleted.
3014 wxRichTextObject* obj = GetFocusObject()->InsertObjectWithUndo(& GetBuffer(), m_caretPosition+1, textBox, this, wxRICHTEXT_INSERT_WITH_PREVIOUS_PARAGRAPH_STYLE);
3015 wxRichTextBox* box = wxDynamicCast(obj, wxRichTextBox);
3016 return box;
3017}
3018
3019wxRichTextField* wxRichTextCtrl::WriteField(const wxString& fieldType, const wxRichTextProperties& properties,
3020 const wxRichTextAttr& textAttr)
3021{
3022 return GetFocusObject()->InsertFieldWithUndo(& GetBuffer(), m_caretPosition+1, fieldType, properties,
3023 this, wxRICHTEXT_INSERT_WITH_PREVIOUS_PARAGRAPH_STYLE, textAttr);
3024}
3025
3026// Write a table at the current insertion point, returning the table.
3027wxRichTextTable* wxRichTextCtrl::WriteTable(int rows, int cols, const wxRichTextAttr& tableAttr, const wxRichTextAttr& cellAttr)
3028{
3029 wxASSERT(rows > 0 && cols > 0);
3030
3031 if (rows <= 0 || cols <= 0)
3032 return NULL;
3033
3034 wxRichTextTable* table = new wxRichTextTable;
3035 table->SetAttributes(tableAttr);
3036 table->SetParent(& GetBuffer()); // set parent temporarily for AddParagraph to use correct style
3037
3038 table->CreateTable(rows, cols);
3039
3040 table->SetParent(NULL);
3041
3042 int i, j;
3043 for (j = 0; j < rows; j++)
3044 {
3045 for (i = 0; i < cols; i++)
3046 {
3047 table->GetCell(j, i)->GetAttributes() = cellAttr;
3048 }
3049 }
3050
3051 // The object returned is the one actually inserted into the buffer,
3052 // while the original one is deleted.
3053 wxRichTextObject* obj = GetFocusObject()->InsertObjectWithUndo(& GetBuffer(), m_caretPosition+1, table, this, wxRICHTEXT_INSERT_WITH_PREVIOUS_PARAGRAPH_STYLE);
3054 wxRichTextTable* tableResult = wxDynamicCast(obj, wxRichTextTable);
3055 return tableResult;
3056}
3057
3058
3059/// Insert a newline (actually paragraph) at the current insertion point.
3060bool wxRichTextCtrl::Newline()
3061{
3062 return GetFocusObject()->InsertNewlineWithUndo(& GetBuffer(), m_caretPosition+1, this, wxRICHTEXT_INSERT_WITH_PREVIOUS_PARAGRAPH_STYLE);
3063}
3064
3065/// Insert a line break at the current insertion point.
3066bool wxRichTextCtrl::LineBreak()
3067{
3068 wxString text;
3069 text = wxRichTextLineBreakChar;
3070 return GetFocusObject()->InsertTextWithUndo(& GetBuffer(), m_caretPosition+1, text, this);
3071}
3072
3073// ----------------------------------------------------------------------------
3074// Clipboard operations
3075// ----------------------------------------------------------------------------
3076
3077void wxRichTextCtrl::Copy()
3078{
3079 if (CanCopy())
3080 {
3081 wxRichTextRange range = GetInternalSelectionRange();
3082 GetBuffer().CopyToClipboard(range);
3083 }
3084}
3085
3086void wxRichTextCtrl::Cut()
3087{
3088 if (CanCut())
3089 {
3090 wxRichTextRange range = GetInternalSelectionRange();
3091 GetBuffer().CopyToClipboard(range);
3092
3093 DeleteSelectedContent();
3094 LayoutContent();
3095 Refresh(false);
3096 }
3097}
3098
3099void wxRichTextCtrl::Paste()
3100{
3101 if (CanPaste())
3102 {
3103 BeginBatchUndo(_("Paste"));
3104
3105 long newPos = m_caretPosition;
3106 DeleteSelectedContent(& newPos);
3107
3108 GetBuffer().PasteFromClipboard(newPos);
3109
3110 EndBatchUndo();
3111 }
3112}
3113
3114void wxRichTextCtrl::DeleteSelection()
3115{
3116 if (CanDeleteSelection())
3117 {
3118 DeleteSelectedContent();
3119 }
3120}
3121
3122bool wxRichTextCtrl::HasSelection() const
3123{
3124 return (m_selection.IsValid() && m_selection.GetContainer() == GetFocusObject());
3125}
3126
3127bool wxRichTextCtrl::HasUnfocusedSelection() const
3128{
3129 return m_selection.IsValid();
3130}
3131
3132bool wxRichTextCtrl::CanCopy() const
3133{
3134 // Can copy if there's a selection
3135 return HasSelection();
3136}
3137
3138bool wxRichTextCtrl::CanCut() const
3139{
3140 return CanDeleteSelection();
3141}
3142
3143bool wxRichTextCtrl::CanPaste() const
3144{
3145 if ( !IsEditable() || !GetFocusObject() || !CanInsertContent(* GetFocusObject(), m_caretPosition+1))
3146 return false;
3147
3148 return GetBuffer().CanPasteFromClipboard();
3149}
3150
3151bool wxRichTextCtrl::CanDeleteSelection() const
3152{
3153 return HasSelection() && IsEditable() && CanDeleteRange(* GetFocusObject(), GetSelectionRange());
3154}
3155
3156
3157// ----------------------------------------------------------------------------
3158// Accessors
3159// ----------------------------------------------------------------------------
3160
3161void wxRichTextCtrl::SetContextMenu(wxMenu* menu)
3162{
3163 if (m_contextMenu && m_contextMenu != menu)
3164 delete m_contextMenu;
3165 m_contextMenu = menu;
3166}
3167
3168void wxRichTextCtrl::SetEditable(bool editable)
3169{
3170 m_editable = editable;
3171}
3172
3173void wxRichTextCtrl::SetInsertionPoint(long pos)
3174{
3175 SelectNone();
3176
3177 m_caretPosition = pos - 1;
3178 m_caretAtLineStart = true;
3179
3180 PositionCaret();
3181
3182 SetDefaultStyleToCursorStyle();
3183}
3184
3185void wxRichTextCtrl::SetInsertionPointEnd()
3186{
3187 long pos = GetLastPosition();
3188 SetInsertionPoint(pos);
3189}
3190
3191long wxRichTextCtrl::GetInsertionPoint() const
3192{
3193 return m_caretPosition+1;
3194}
3195
3196wxTextPos wxRichTextCtrl::GetLastPosition() const
3197{
3198 return GetFocusObject()->GetOwnRange().GetEnd();
3199}
3200
3201// If the return values from and to are the same, there is no
3202// selection.
3203void wxRichTextCtrl::GetSelection(long* from, long* to) const
3204{
3205 if (m_selection.IsValid())
3206 {
3207 *from = m_selection.GetRange().GetStart();
3208 *to = m_selection.GetRange().GetEnd();
3209 (*to) ++;
3210 }
3211 else
3212 {
3213 *from = -2;
3214 *to = -2;
3215 }
3216}
3217
3218bool wxRichTextCtrl::IsEditable() const
3219{
3220 return m_editable;
3221}
3222
3223// ----------------------------------------------------------------------------
3224// selection
3225// ----------------------------------------------------------------------------
3226
3227void wxRichTextCtrl::SetSelection(long from, long to)
3228{
3229 // if from and to are both -1, it means (in wxWidgets) that all text should
3230 // be selected.
3231 if ( (from == -1) && (to == -1) )
3232 {
3233 from = 0;
3234 to = GetLastPosition()+1;
3235 }
3236
3237 if (from == to)
3238 {
3239 SelectNone();
3240 }
3241 else
3242 {
3243 wxRichTextSelection oldSelection = m_selection;
3244
3245 m_selectionAnchor = from-1;
3246 m_selectionAnchorObject = NULL;
3247 m_selection.Set(wxRichTextRange(from, to-1), GetFocusObject());
3248
3249 m_caretPosition = wxMax(-1, to-1);
3250
3251 RefreshForSelectionChange(oldSelection, m_selection);
3252 PositionCaret();
3253 }
3254}
3255
3256// ----------------------------------------------------------------------------
3257// Editing
3258// ----------------------------------------------------------------------------
3259
3260void wxRichTextCtrl::Replace(long from, long to,
3261 const wxString& value)
3262{
3263 BeginBatchUndo(_("Replace"));
3264
3265 SetSelection(from, to);
3266
3267 wxRichTextAttr attr(GetDefaultStyle());
3268
3269 DeleteSelectedContent();
3270
3271 SetDefaultStyle(attr);
3272
3273 if (!value.IsEmpty())
3274 DoWriteText(value, SetValue_SelectionOnly);
3275
3276 EndBatchUndo();
3277}
3278
3279void wxRichTextCtrl::Remove(long from, long to)
3280{
3281 SelectNone();
3282
3283 GetFocusObject()->DeleteRangeWithUndo(wxRichTextRange(from, to-1), this, & GetBuffer());
3284
3285 LayoutContent();
3286 if (!IsFrozen())
3287 Refresh(false);
3288}
3289
3290bool wxRichTextCtrl::IsModified() const
3291{
3292 return m_buffer.IsModified();
3293}
3294
3295void wxRichTextCtrl::MarkDirty()
3296{
3297 m_buffer.Modify(true);
3298}
3299
3300void wxRichTextCtrl::DiscardEdits()
3301{
3302 m_caretPositionForDefaultStyle = -2;
3303 m_buffer.Modify(false);
3304 m_buffer.GetCommandProcessor()->ClearCommands();
3305}
3306
3307int wxRichTextCtrl::GetNumberOfLines() const
3308{
3309 return GetFocusObject()->GetParagraphCount();
3310}
3311
3312// ----------------------------------------------------------------------------
3313// Positions <-> coords
3314// ----------------------------------------------------------------------------
3315
3316long wxRichTextCtrl::XYToPosition(long x, long y) const
3317{
3318 return GetFocusObject()->XYToPosition(x, y);
3319}
3320
3321bool wxRichTextCtrl::PositionToXY(long pos, long *x, long *y) const
3322{
3323 return GetFocusObject()->PositionToXY(pos, x, y);
3324}
3325
3326// ----------------------------------------------------------------------------
3327//
3328// ----------------------------------------------------------------------------
3329
3330void wxRichTextCtrl::ShowPosition(long pos)
3331{
3332 if (!IsPositionVisible(pos))
3333 ScrollIntoView(pos-1, WXK_DOWN);
3334}
3335
3336int wxRichTextCtrl::GetLineLength(long lineNo) const
3337{
3338 return GetFocusObject()->GetParagraphLength(lineNo);
3339}
3340
3341wxString wxRichTextCtrl::GetLineText(long lineNo) const
3342{
3343 return GetFocusObject()->GetParagraphText(lineNo);
3344}
3345
3346// ----------------------------------------------------------------------------
3347// Undo/redo
3348// ----------------------------------------------------------------------------
3349
3350void wxRichTextCtrl::Undo()
3351{
3352 if (CanUndo())
3353 {
3354 GetCommandProcessor()->Undo();
3355 }
3356}
3357
3358void wxRichTextCtrl::Redo()
3359{
3360 if (CanRedo())
3361 {
3362 GetCommandProcessor()->Redo();
3363 }
3364}
3365
3366bool wxRichTextCtrl::CanUndo() const
3367{
3368 return GetCommandProcessor()->CanUndo() && IsEditable();
3369}
3370
3371bool wxRichTextCtrl::CanRedo() const
3372{
3373 return GetCommandProcessor()->CanRedo() && IsEditable();
3374}
3375
3376// ----------------------------------------------------------------------------
3377// implementation details
3378// ----------------------------------------------------------------------------
3379
3380void wxRichTextCtrl::Command(wxCommandEvent& event)
3381{
3382 SetValue(event.GetString());
3383 GetEventHandler()->ProcessEvent(event);
3384}
3385
3386void wxRichTextCtrl::OnDropFiles(wxDropFilesEvent& event)
3387{
3388 // By default, load the first file into the text window.
3389 if (event.GetNumberOfFiles() > 0)
3390 {
3391 LoadFile(event.GetFiles()[0]);
3392 }
3393}
3394
3395wxSize wxRichTextCtrl::DoGetBestSize() const
3396{
3397 return wxSize(10, 10);
3398}
3399
3400// ----------------------------------------------------------------------------
3401// standard handlers for standard edit menu events
3402// ----------------------------------------------------------------------------
3403
3404void wxRichTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
3405{
3406 Cut();
3407}
3408
3409void wxRichTextCtrl::OnClear(wxCommandEvent& WXUNUSED(event))
3410{
3411 DeleteSelection();
3412}
3413
3414void wxRichTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
3415{
3416 Copy();
3417}
3418
3419void wxRichTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
3420{
3421 Paste();
3422}
3423
3424void wxRichTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
3425{
3426 Undo();
3427}
3428
3429void wxRichTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
3430{
3431 Redo();
3432}
3433
3434void wxRichTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
3435{
3436 event.Enable( CanCut() );
3437}
3438
3439void wxRichTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
3440{
3441 event.Enable( CanCopy() );
3442}
3443
3444void wxRichTextCtrl::OnUpdateClear(wxUpdateUIEvent& event)
3445{
3446 event.Enable( CanDeleteSelection() );
3447}
3448
3449void wxRichTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
3450{
3451 event.Enable( CanPaste() );
3452}
3453
3454void wxRichTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
3455{
3456 event.Enable( CanUndo() );
3457 event.SetText( GetCommandProcessor()->GetUndoMenuLabel() );
3458}
3459
3460void wxRichTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
3461{
3462 event.Enable( CanRedo() );
3463 event.SetText( GetCommandProcessor()->GetRedoMenuLabel() );
3464}
3465
3466void wxRichTextCtrl::OnSelectAll(wxCommandEvent& WXUNUSED(event))
3467{
3468 if (GetLastPosition() > 0)
3469 SelectAll();
3470}
3471
3472void wxRichTextCtrl::OnUpdateSelectAll(wxUpdateUIEvent& event)
3473{
3474 event.Enable(GetLastPosition() > 0);
3475}
3476
3477void wxRichTextCtrl::OnProperties(wxCommandEvent& event)
3478{
3479 int idx = event.GetId() - wxID_RICHTEXT_PROPERTIES1;
3480 if (idx >= 0 && idx < m_contextMenuPropertiesInfo.GetCount())
3481 {
3482 wxRichTextObject* obj = m_contextMenuPropertiesInfo.GetObject(idx);
3483 if (obj && CanEditProperties(obj))
3484 EditProperties(obj, this);
3485
3486 m_contextMenuPropertiesInfo.Clear();
3487 }
3488}
3489
3490void wxRichTextCtrl::OnUpdateProperties(wxUpdateUIEvent& event)
3491{
3492 int idx = event.GetId() - wxID_RICHTEXT_PROPERTIES1;
3493 event.Enable(idx >= 0 && idx < m_contextMenuPropertiesInfo.GetCount());
3494}
3495
3496void wxRichTextCtrl::OnContextMenu(wxContextMenuEvent& event)
3497{
3498 if (event.GetEventObject() != this)
3499 {
3500 event.Skip();
3501 return;
3502 }
3503
3504 ShowContextMenu(m_contextMenu, event.GetPosition());
3505}
3506
3507// Prepares the context menu, adding appropriate property-editing commands.
3508// Returns the number of property commands added.
3509int wxRichTextCtrl::PrepareContextMenu(wxMenu* menu, const wxPoint& pt, bool addPropertyCommands)
3510{
3511 wxClientDC dc(this);
3512 PrepareDC(dc);
3513 dc.SetFont(GetFont());
3514
3515 m_contextMenuPropertiesInfo.Clear();
3516
3517 long position = 0;
3518 wxRichTextObject* hitObj = NULL;
3519 wxRichTextObject* contextObj = NULL;
3520 if (pt != wxDefaultPosition)
3521 {
3522 wxPoint logicalPt = GetLogicalPoint(ScreenToClient(pt));
3523 wxRichTextDrawingContext context(& GetBuffer());
3524 int hit = GetBuffer().HitTest(dc, context, GetUnscaledPoint(logicalPt), position, & hitObj, & contextObj);
3525
3526 if (hit == wxRICHTEXT_HITTEST_ON || hit == wxRICHTEXT_HITTEST_BEFORE || hit == wxRICHTEXT_HITTEST_AFTER)
3527 {
3528 wxRichTextParagraphLayoutBox* actualContainer = wxDynamicCast(contextObj, wxRichTextParagraphLayoutBox);
3529 if (hitObj && actualContainer)
3530 {
3531 if (actualContainer->AcceptsFocus())
3532 {
3533 SetFocusObject(actualContainer, false /* don't set caret position yet */);
3534 SetCaretPositionAfterClick(actualContainer, position, hit);
3535 }
3536
3537 if (addPropertyCommands)
3538 m_contextMenuPropertiesInfo.AddItems(this, actualContainer, hitObj);
3539 }
3540 else
3541 {
3542 if (addPropertyCommands)
3543 m_contextMenuPropertiesInfo.AddItems(this, GetFocusObject(), NULL);
3544 }
3545 }
3546 else
3547 {
3548 if (addPropertyCommands)
3549 m_contextMenuPropertiesInfo.AddItems(this, GetFocusObject(), NULL);
3550 }
3551 }
3552 else
3553 {
3554 // Invoked from the keyboard, so don't set the caret position and don't use the event
3555 // position
3556 hitObj = GetFocusObject()->GetLeafObjectAtPosition(m_caretPosition+1);
3557 if (hitObj)
3558 contextObj = hitObj->GetParentContainer();
3559 else
3560 contextObj = GetFocusObject();
3561
3562 wxRichTextParagraphLayoutBox* actualContainer = wxDynamicCast(contextObj, wxRichTextParagraphLayoutBox);
3563 if (hitObj && actualContainer)
3564 {
3565 if (addPropertyCommands)
3566 m_contextMenuPropertiesInfo.AddItems(this, actualContainer, hitObj);
3567 }
3568 else
3569 {
3570 if (addPropertyCommands)
3571 m_contextMenuPropertiesInfo.AddItems(this, GetFocusObject(), NULL);
3572 }
3573 }
3574
3575 if (menu)
3576 {
3577 if (addPropertyCommands)
3578 m_contextMenuPropertiesInfo.AddMenuItems(menu);
3579 return m_contextMenuPropertiesInfo.GetCount();
3580 }
3581 else
3582 return 0;
3583}
3584
3585// Shows the context menu, adding appropriate property-editing commands
3586bool wxRichTextCtrl::ShowContextMenu(wxMenu* menu, const wxPoint& pt, bool addPropertyCommands)
3587{
3588 if (menu)
3589 {
3590 PrepareContextMenu(menu, pt, addPropertyCommands);
3591 PopupMenu(menu);
3592 return true;
3593 }
3594 else
3595 return false;
3596}
3597
3598bool wxRichTextCtrl::SetStyle(long start, long end, const wxTextAttr& style)
3599{
3600 return GetFocusObject()->SetStyle(wxRichTextRange(start, end-1), wxRichTextAttr(style));
3601}
3602
3603bool wxRichTextCtrl::SetStyle(long start, long end, const wxRichTextAttr& style)
3604{
3605 return GetFocusObject()->SetStyle(wxRichTextRange(start, end-1), style);
3606}
3607
3608bool wxRichTextCtrl::SetStyle(const wxRichTextRange& range, const wxTextAttr& style)
3609{
3610 return GetFocusObject()->SetStyle(range.ToInternal(), wxRichTextAttr(style));
3611}
3612
3613bool wxRichTextCtrl::SetStyle(const wxRichTextRange& range, const wxRichTextAttr& style)
3614{
3615 return GetFocusObject()->SetStyle(range.ToInternal(), style);
3616}
3617
3618void wxRichTextCtrl::SetStyle(wxRichTextObject *obj, const wxRichTextAttr& textAttr, int flags)
3619{
3620 GetFocusObject()->SetStyle(obj, textAttr, flags);
3621}
3622
3623// extended style setting operation with flags including:
3624// wxRICHTEXT_SETSTYLE_WITH_UNDO, wxRICHTEXT_SETSTYLE_OPTIMIZE, wxRICHTEXT_SETSTYLE_PARAGRAPHS_ONLY.
3625// see richtextbuffer.h for more details.
3626
3627bool wxRichTextCtrl::SetStyleEx(const wxRichTextRange& range, const wxRichTextAttr& style, int flags)
3628{
3629 return GetFocusObject()->SetStyle(range.ToInternal(), style, flags);
3630}
3631
3632bool wxRichTextCtrl::SetDefaultStyle(const wxTextAttr& style)
3633{
3634 return GetBuffer().SetDefaultStyle(style);
3635}
3636
3637bool wxRichTextCtrl::SetDefaultStyle(const wxRichTextAttr& style)
3638{
3639 wxRichTextAttr attr1(style);
3640 attr1.GetTextBoxAttr().Reset();
3641 return GetBuffer().SetDefaultStyle(attr1);
3642}
3643
3644const wxRichTextAttr& wxRichTextCtrl::GetDefaultStyleEx() const
3645{
3646 return GetBuffer().GetDefaultStyle();
3647}
3648
3649bool wxRichTextCtrl::GetStyle(long position, wxTextAttr& style)
3650{
3651 wxRichTextAttr attr;
3652 if (GetFocusObject()->GetStyle(position, attr))
3653 {
3654 style = attr;
3655 return true;
3656 }
3657 else
3658 return false;
3659}
3660
3661bool wxRichTextCtrl::GetStyle(long position, wxRichTextAttr& style)
3662{
3663 return GetFocusObject()->GetStyle(position, style);
3664}
3665
3666bool wxRichTextCtrl::GetStyle(long position, wxRichTextAttr& style, wxRichTextParagraphLayoutBox* container)
3667{
3668 wxRichTextAttr attr;
3669 if (container->GetStyle(position, attr))
3670 {
3671 style = attr;
3672 return true;
3673 }
3674 else
3675 return false;
3676}
3677
3678// get the common set of styles for the range
3679bool wxRichTextCtrl::GetStyleForRange(const wxRichTextRange& range, wxTextAttr& style)
3680{
3681 wxRichTextAttr attr;
3682 if (GetFocusObject()->GetStyleForRange(range.ToInternal(), attr))
3683 {
3684 style = attr;
3685 return true;
3686 }
3687 else
3688 return false;
3689}
3690
3691bool wxRichTextCtrl::GetStyleForRange(const wxRichTextRange& range, wxRichTextAttr& style)
3692{
3693 return GetFocusObject()->GetStyleForRange(range.ToInternal(), style);
3694}
3695
3696bool wxRichTextCtrl::GetStyleForRange(const wxRichTextRange& range, wxRichTextAttr& style, wxRichTextParagraphLayoutBox* container)
3697{
3698 return container->GetStyleForRange(range.ToInternal(), style);
3699}
3700
3701/// Get the content (uncombined) attributes for this position.
3702bool wxRichTextCtrl::GetUncombinedStyle(long position, wxRichTextAttr& style)
3703{
3704 return GetFocusObject()->GetUncombinedStyle(position, style);
3705}
3706
3707/// Get the content (uncombined) attributes for this position.
3708bool wxRichTextCtrl::GetUncombinedStyle(long position, wxRichTextAttr& style, wxRichTextParagraphLayoutBox* container)
3709{
3710 return container->GetUncombinedStyle(position, style);
3711}
3712
3713bool wxRichTextCtrl::SetProperties(const wxRichTextRange& range, const wxRichTextProperties& properties, int flags)
3714{
3715 return GetFocusObject()->SetProperties(range.ToInternal(), properties, flags);
3716}
3717
3718/// Set font, and also the buffer attributes
3719bool wxRichTextCtrl::SetFont(const wxFont& font)
3720{
3721 wxControl::SetFont(font);
3722
3723 wxRichTextAttr attr = GetBuffer().GetAttributes();
3724 attr.SetFont(font);
3725 GetBuffer().SetBasicStyle(attr);
3726
3727 GetBuffer().Invalidate(wxRICHTEXT_ALL);
3728 Refresh(false);
3729
3730 return true;
3731}
3732
3733/// Transform logical to physical
3734wxPoint wxRichTextCtrl::GetPhysicalPoint(const wxPoint& ptLogical) const
3735{
3736 wxPoint pt;
3737 CalcScrolledPosition(ptLogical.x, ptLogical.y, & pt.x, & pt.y);
3738
3739 return pt;
3740}
3741
3742/// Transform physical to logical
3743wxPoint wxRichTextCtrl::GetLogicalPoint(const wxPoint& ptPhysical) const
3744{
3745 wxPoint pt;
3746 CalcUnscrolledPosition(ptPhysical.x, ptPhysical.y, & pt.x, & pt.y);
3747
3748 return pt;
3749}
3750
3751/// Position the caret
3752void wxRichTextCtrl::PositionCaret(wxRichTextParagraphLayoutBox* container)
3753{
3754 if (!GetCaret())
3755 return;
3756
3757 //wxLogDebug(wxT("PositionCaret"));
3758
3759 wxRect caretRect;
3760 if (GetCaretPositionForIndex(GetCaretPosition(), caretRect, container))
3761 {
3762#if !wxRICHTEXT_USE_OWN_CARET
3763 caretRect = GetScaledRect(caretRect);
3764#endif
3765 int topMargin = (int) (0.5 + GetScale()*GetBuffer().GetTopMargin());
3766 int bottomMargin = (int) (0.5 + GetScale()*GetBuffer().GetBottomMargin());
3767 wxPoint newPt = caretRect.GetPosition();
3768 wxSize newSz = caretRect.GetSize();
3769 wxPoint pt = GetPhysicalPoint(newPt);
3770 if (GetCaret()->GetPosition() != pt || GetCaret()->GetSize() != newSz)
3771 {
3772 GetCaret()->Hide();
3773 if (GetCaret()->GetSize() != newSz)
3774 GetCaret()->SetSize(newSz);
3775
3776 // Adjust size so the caret size and position doesn't appear in the margins
3777 if (((pt.y + newSz.y) <= topMargin) || (pt.y >= (GetClientSize().y - bottomMargin)))
3778 {
3779 pt.x = -200;
3780 pt.y = -200;
3781 }
3782 else if (pt.y < topMargin && (pt.y + newSz.y) > topMargin)
3783 {
3784 newSz.y -= (topMargin - pt.y);
3785 if (newSz.y > 0)
3786 {
3787 pt.y = topMargin;
3788 GetCaret()->SetSize(newSz);
3789 }
3790 }
3791 else if (pt.y < (GetClientSize().y - bottomMargin) && (pt.y + newSz.y) > (GetClientSize().y - bottomMargin))
3792 {
3793 newSz.y = GetClientSize().y - bottomMargin - pt.y;
3794 GetCaret()->SetSize(newSz);
3795 }
3796
3797 GetCaret()->Move(pt);
3798 GetCaret()->Show();
3799 }
3800 }
3801}
3802
3803/// Get the caret height and position for the given character position
3804bool wxRichTextCtrl::GetCaretPositionForIndex(long position, wxRect& rect, wxRichTextParagraphLayoutBox* container)
3805{
3806 wxClientDC dc(this);
3807 PrepareDC(dc);
3808 dc.SetUserScale(GetScale(), GetScale());
3809 dc.SetFont(GetFont());
3810
3811 wxPoint pt;
3812 int height = 0;
3813
3814 if (!container)
3815 container = GetFocusObject();
3816
3817 wxRichTextDrawingContext context(& GetBuffer());
3818 if (container->FindPosition(dc, context, position, pt, & height, m_caretAtLineStart))
3819 {
3820 // Caret height can't be zero
3821 if (height == 0)
3822 height = dc.GetCharHeight();
3823
3824 rect = wxRect(pt, wxSize(wxRICHTEXT_DEFAULT_CARET_WIDTH, height));
3825 return true;
3826 }
3827
3828 return false;
3829}
3830
3831/// Gets the line for the visible caret position. If the caret is
3832/// shown at the very end of the line, it means the next character is actually
3833/// on the following line. So let's get the line we're expecting to find
3834/// if this is the case.
3835wxRichTextLine* wxRichTextCtrl::GetVisibleLineForCaretPosition(long caretPosition) const
3836{
3837 wxRichTextLine* line = GetFocusObject()->GetLineAtPosition(caretPosition, true);
3838 wxRichTextParagraph* para = GetFocusObject()->GetParagraphAtPosition(caretPosition, true);
3839 if (line)
3840 {
3841 wxRichTextRange lineRange = line->GetAbsoluteRange();
3842 if (caretPosition == lineRange.GetStart()-1 &&
3843 (para->GetRange().GetStart() != lineRange.GetStart()))
3844 {
3845 if (!m_caretAtLineStart)
3846 line = GetFocusObject()->GetLineAtPosition(caretPosition-1, true);
3847 }
3848 }
3849 return line;
3850}
3851
3852
3853/// Move the caret to the given character position
3854bool wxRichTextCtrl::MoveCaret(long pos, bool showAtLineStart, wxRichTextParagraphLayoutBox* container)
3855{
3856 if (GetBuffer().IsDirty())
3857 LayoutContent();
3858
3859 if (!container)
3860 container = GetFocusObject();
3861
3862 if (pos <= container->GetOwnRange().GetEnd())
3863 {
3864 SetCaretPosition(pos, showAtLineStart);
3865
3866 PositionCaret(container);
3867
3868 return true;
3869 }
3870 else
3871 return false;
3872}
3873
3874/// Layout the buffer: which we must do before certain operations, such as
3875/// setting the caret position.
3876bool wxRichTextCtrl::LayoutContent(bool onlyVisibleRect)
3877{
3878 if (GetBuffer().IsDirty() || onlyVisibleRect)
3879 {
3880 wxRect availableSpace(GetUnscaledSize(GetClientSize()));
3881 if (availableSpace.width == 0)
3882 availableSpace.width = 10;
3883 if (availableSpace.height == 0)
3884 availableSpace.height = 10;
3885
3886 int flags = wxRICHTEXT_FIXED_WIDTH|wxRICHTEXT_VARIABLE_HEIGHT;
3887 if (onlyVisibleRect)
3888 {
3889 flags |= wxRICHTEXT_LAYOUT_SPECIFIED_RECT;
3890 availableSpace.SetPosition(GetUnscaledPoint(GetLogicalPoint(wxPoint(0, 0))));
3891 }
3892
3893 wxClientDC dc(this);
3894
3895 PrepareDC(dc);
3896 dc.SetFont(GetFont());
3897 dc.SetUserScale(GetScale(), GetScale());
3898
3899 wxRichTextDrawingContext context(& GetBuffer());
3900 GetBuffer().Defragment(context);
3901 GetBuffer().UpdateRanges(); // If items were deleted, ranges need recalculation
3902 GetBuffer().Layout(dc, context, availableSpace, availableSpace, flags);
3903 GetBuffer().Invalidate(wxRICHTEXT_NONE);
3904
3905 dc.SetUserScale(1.0, 1.0);
3906
3907 if (!IsFrozen() && !onlyVisibleRect)
3908 SetupScrollbars();
3909 }
3910
3911 return true;
3912}
3913
3914/// Is all of the selection, or the current caret position, bold?
3915bool wxRichTextCtrl::IsSelectionBold()
3916{
3917 if (HasSelection())
3918 {
3919 wxRichTextAttr attr;
3920 wxRichTextRange range = GetSelectionRange();
3921 attr.SetFlags(wxTEXT_ATTR_FONT_WEIGHT);
3922 attr.SetFontWeight(wxFONTWEIGHT_BOLD);
3923
3924 return HasCharacterAttributes(range, attr);
3925 }
3926 else
3927 {
3928 // If no selection, then we need to combine current style with default style
3929 // to see what the effect would be if we started typing.
3930 wxRichTextAttr attr;
3931 attr.SetFlags(wxTEXT_ATTR_FONT_WEIGHT);
3932
3933 long pos = GetAdjustedCaretPosition(GetCaretPosition());
3934 if (GetStyle(pos, attr))
3935 {
3936 if (IsDefaultStyleShowing())
3937 wxRichTextApplyStyle(attr, GetDefaultStyleEx());
3938 return attr.GetFontWeight() == wxFONTWEIGHT_BOLD;
3939 }
3940 }
3941 return false;
3942}
3943
3944/// Is all of the selection, or the current caret position, italics?
3945bool wxRichTextCtrl::IsSelectionItalics()
3946{
3947 if (HasSelection())
3948 {
3949 wxRichTextRange range = GetSelectionRange();
3950 wxRichTextAttr attr;
3951 attr.SetFlags(wxTEXT_ATTR_FONT_ITALIC);
3952 attr.SetFontStyle(wxFONTSTYLE_ITALIC);
3953
3954 return HasCharacterAttributes(range, attr);
3955 }
3956 else
3957 {
3958 // If no selection, then we need to combine current style with default style
3959 // to see what the effect would be if we started typing.
3960 wxRichTextAttr attr;
3961 attr.SetFlags(wxTEXT_ATTR_FONT_ITALIC);
3962
3963 long pos = GetAdjustedCaretPosition(GetCaretPosition());
3964 if (GetStyle(pos, attr))
3965 {
3966 if (IsDefaultStyleShowing())
3967 wxRichTextApplyStyle(attr, GetDefaultStyleEx());
3968 return attr.GetFontStyle() == wxFONTSTYLE_ITALIC;
3969 }
3970 }
3971 return false;
3972}
3973
3974/// Is all of the selection, or the current caret position, underlined?
3975bool wxRichTextCtrl::IsSelectionUnderlined()
3976{
3977 if (HasSelection())
3978 {
3979 wxRichTextRange range = GetSelectionRange();
3980 wxRichTextAttr attr;
3981 attr.SetFlags(wxTEXT_ATTR_FONT_UNDERLINE);
3982 attr.SetFontUnderlined(true);
3983
3984 return HasCharacterAttributes(range, attr);
3985 }
3986 else
3987 {
3988 // If no selection, then we need to combine current style with default style
3989 // to see what the effect would be if we started typing.
3990 wxRichTextAttr attr;
3991 attr.SetFlags(wxTEXT_ATTR_FONT_UNDERLINE);
3992 long pos = GetAdjustedCaretPosition(GetCaretPosition());
3993
3994 if (GetStyle(pos, attr))
3995 {
3996 if (IsDefaultStyleShowing())
3997 wxRichTextApplyStyle(attr, GetDefaultStyleEx());
3998 return attr.GetFontUnderlined();
3999 }
4000 }
4001 return false;
4002}
4003
4004/// Does all of the selection, or the current caret position, have this wxTextAttrEffects flag(s)?
4005bool wxRichTextCtrl::DoesSelectionHaveTextEffectFlag(int flag)
4006{
4007 wxRichTextAttr attr;
4008 attr.SetFlags(wxTEXT_ATTR_EFFECTS);
4009 attr.SetTextEffectFlags(flag);
4010 attr.SetTextEffects(flag);
4011
4012 if (HasSelection())
4013 {
4014 return HasCharacterAttributes(GetSelectionRange(), attr);
4015 }
4016 else
4017 {
4018 // If no selection, then we need to combine current style with default style
4019 // to see what the effect would be if we started typing.
4020 long pos = GetAdjustedCaretPosition(GetCaretPosition());
4021 if (GetStyle(pos, attr))
4022 {
4023 if (IsDefaultStyleShowing())
4024 wxRichTextApplyStyle(attr, GetDefaultStyleEx());
4025 return (attr.GetTextEffectFlags() & flag) != 0;
4026 }
4027 }
4028 return false;
4029}
4030
4031/// Apply bold to the selection
4032bool wxRichTextCtrl::ApplyBoldToSelection()
4033{
4034 wxRichTextAttr attr;
4035 attr.SetFlags(wxTEXT_ATTR_FONT_WEIGHT);
4036 attr.SetFontWeight(IsSelectionBold() ? wxFONTWEIGHT_NORMAL : wxFONTWEIGHT_BOLD);
4037
4038 if (HasSelection())
4039 return SetStyleEx(GetSelectionRange(), attr, wxRICHTEXT_SETSTYLE_WITH_UNDO|wxRICHTEXT_SETSTYLE_OPTIMIZE|wxRICHTEXT_SETSTYLE_CHARACTERS_ONLY);
4040 else
4041 {
4042 wxRichTextAttr current = GetDefaultStyleEx();
4043 current.Apply(attr);
4044 SetAndShowDefaultStyle(current);
4045 }
4046 return true;
4047}
4048
4049/// Apply italic to the selection
4050bool wxRichTextCtrl::ApplyItalicToSelection()
4051{
4052 wxRichTextAttr attr;
4053 attr.SetFlags(wxTEXT_ATTR_FONT_ITALIC);
4054 attr.SetFontStyle(IsSelectionItalics() ? wxFONTSTYLE_NORMAL : wxFONTSTYLE_ITALIC);
4055
4056 if (HasSelection())
4057 return SetStyleEx(GetSelectionRange(), attr, wxRICHTEXT_SETSTYLE_WITH_UNDO|wxRICHTEXT_SETSTYLE_OPTIMIZE|wxRICHTEXT_SETSTYLE_CHARACTERS_ONLY);
4058 else
4059 {
4060 wxRichTextAttr current = GetDefaultStyleEx();
4061 current.Apply(attr);
4062 SetAndShowDefaultStyle(current);
4063 }
4064 return true;
4065}
4066
4067/// Apply underline to the selection
4068bool wxRichTextCtrl::ApplyUnderlineToSelection()
4069{
4070 wxRichTextAttr attr;
4071 attr.SetFlags(wxTEXT_ATTR_FONT_UNDERLINE);
4072 attr.SetFontUnderlined(!IsSelectionUnderlined());
4073
4074 if (HasSelection())
4075 return SetStyleEx(GetSelectionRange(), attr, wxRICHTEXT_SETSTYLE_WITH_UNDO|wxRICHTEXT_SETSTYLE_OPTIMIZE|wxRICHTEXT_SETSTYLE_CHARACTERS_ONLY);
4076 else
4077 {
4078 wxRichTextAttr current = GetDefaultStyleEx();
4079 current.Apply(attr);
4080 SetAndShowDefaultStyle(current);
4081 }
4082 return true;
4083}
4084
4085/// Apply the wxTextAttrEffects flag(s) to the selection, or the current caret position if there's no selection
4086bool wxRichTextCtrl::ApplyTextEffectToSelection(int flags)
4087{
4088 wxRichTextAttr attr;
4089 attr.SetFlags(wxTEXT_ATTR_EFFECTS);
4090 attr.SetTextEffectFlags(flags);
4091 if (!DoesSelectionHaveTextEffectFlag(flags))
4092 attr.SetTextEffects(flags);
4093 else
4094 attr.SetTextEffects(attr.GetTextEffectFlags() & ~flags);
4095
4096 if (HasSelection())
4097 return SetStyleEx(GetSelectionRange(), attr, wxRICHTEXT_SETSTYLE_WITH_UNDO|wxRICHTEXT_SETSTYLE_OPTIMIZE|wxRICHTEXT_SETSTYLE_CHARACTERS_ONLY);
4098 else
4099 {
4100 wxRichTextAttr current = GetDefaultStyleEx();
4101 current.Apply(attr);
4102 SetAndShowDefaultStyle(current);
4103 }
4104 return true;
4105}
4106
4107/// Is all of the selection aligned according to the specified flag?
4108bool wxRichTextCtrl::IsSelectionAligned(wxTextAttrAlignment alignment)
4109{
4110 wxRichTextRange range;
4111 if (HasSelection())
4112 range = GetSelectionRange();
4113 else
4114 range = wxRichTextRange(GetCaretPosition()+1, GetCaretPosition()+2);
4115
4116 wxRichTextAttr attr;
4117 attr.SetAlignment(alignment);
4118
4119 return HasParagraphAttributes(range, attr);
4120}
4121
4122/// Apply alignment to the selection
4123bool wxRichTextCtrl::ApplyAlignmentToSelection(wxTextAttrAlignment alignment)
4124{
4125 wxRichTextAttr attr;
4126 attr.SetAlignment(alignment);
4127 if (HasSelection())
4128 return SetStyle(GetSelectionRange(), attr);
4129 else
4130 {
4131 wxRichTextParagraph* para = GetFocusObject()->GetParagraphAtPosition(GetCaretPosition()+1);
4132 if (para)
4133 return SetStyleEx(para->GetRange().FromInternal(), attr, wxRICHTEXT_SETSTYLE_WITH_UNDO|wxRICHTEXT_SETSTYLE_OPTIMIZE|wxRICHTEXT_SETSTYLE_PARAGRAPHS_ONLY);
4134 }
4135 return true;
4136}
4137
4138/// Apply a named style to the selection
4139bool wxRichTextCtrl::ApplyStyle(wxRichTextStyleDefinition* def)
4140{
4141 // Flags are defined within each definition, so only certain
4142 // attributes are applied.
4143 wxRichTextAttr attr(GetStyleSheet() ? def->GetStyleMergedWithBase(GetStyleSheet()) : def->GetStyle());
4144
4145 int flags = wxRICHTEXT_SETSTYLE_WITH_UNDO|wxRICHTEXT_SETSTYLE_OPTIMIZE|wxRICHTEXT_SETSTYLE_RESET;
4146
4147 if (wxDynamicCast(def, wxRichTextListStyleDefinition))
4148 {
4149 flags |= wxRICHTEXT_SETSTYLE_PARAGRAPHS_ONLY;
4150
4151 wxRichTextRange range;
4152
4153 if (HasSelection())
4154 range = GetSelectionRange();
4155 else
4156 {
4157 long pos = GetAdjustedCaretPosition(GetCaretPosition());
4158 range = wxRichTextRange(pos, pos+1);
4159 }
4160
4161 return SetListStyle(range, (wxRichTextListStyleDefinition*) def, flags);
4162 }
4163
4164 bool isPara = false;
4165
4166 // Make sure the attr has the style name
4167 if (wxDynamicCast(def, wxRichTextParagraphStyleDefinition))
4168 {
4169 isPara = true;
4170 attr.SetParagraphStyleName(def->GetName());
4171
4172 // If applying a paragraph style, we only want the paragraph nodes to adopt these
4173 // attributes, and not the leaf nodes. This will allow the content (e.g. text)
4174 // to change its style independently.
4175 flags |= wxRICHTEXT_SETSTYLE_PARAGRAPHS_ONLY;
4176 }
4177 else if (wxDynamicCast(def, wxRichTextCharacterStyleDefinition))
4178 attr.SetCharacterStyleName(def->GetName());
4179 else if (wxDynamicCast(def, wxRichTextBoxStyleDefinition))
4180 attr.GetTextBoxAttr().SetBoxStyleName(def->GetName());
4181
4182 if (wxDynamicCast(def, wxRichTextBoxStyleDefinition))
4183 {
4184 if (GetFocusObject() && (GetFocusObject() != & GetBuffer()))
4185 {
4186 SetStyle(GetFocusObject(), attr);
4187 return true;
4188 }
4189 else
4190 return false;
4191 }
4192 else if (HasSelection())
4193 return SetStyleEx(GetSelectionRange(), attr, flags);
4194 else
4195 {
4196 wxRichTextAttr current = GetDefaultStyleEx();
4197 wxRichTextAttr defaultStyle(attr);
4198 if (isPara)
4199 {
4200 // Don't apply extra character styles since they are already implied
4201 // in the paragraph style
4202 defaultStyle.SetFlags(defaultStyle.GetFlags() & ~wxTEXT_ATTR_CHARACTER);
4203 }
4204 current.Apply(defaultStyle);
4205 SetAndShowDefaultStyle(current);
4206
4207 // If it's a paragraph style, we want to apply the style to the
4208 // current paragraph even if we didn't select any text.
4209 if (isPara)
4210 {
4211 long pos = GetAdjustedCaretPosition(GetCaretPosition());
4212 wxRichTextParagraph* para = GetFocusObject()->GetParagraphAtPosition(pos);
4213 if (para)
4214 {
4215 return SetStyleEx(para->GetRange().FromInternal(), attr, flags);
4216 }
4217 }
4218 return true;
4219 }
4220}
4221
4222/// Apply the style sheet to the buffer, for example if the styles have changed.
4223bool wxRichTextCtrl::ApplyStyleSheet(wxRichTextStyleSheet* styleSheet)
4224{
4225 if (!styleSheet)
4226 styleSheet = GetBuffer().GetStyleSheet();
4227 if (!styleSheet)
4228 return false;
4229
4230 if (GetBuffer().ApplyStyleSheet(styleSheet))
4231 {
4232 GetBuffer().Invalidate(wxRICHTEXT_ALL);
4233 Refresh(false);
4234 return true;
4235 }
4236 else
4237 return false;
4238}
4239
4240/// Sets the default style to the style under the cursor
4241bool wxRichTextCtrl::SetDefaultStyleToCursorStyle()
4242{
4243 wxRichTextAttr attr;
4244 attr.SetFlags(wxTEXT_ATTR_CHARACTER);
4245
4246 // If at the start of a paragraph, use the next position.
4247 long pos = GetAdjustedCaretPosition(GetCaretPosition());
4248
4249 wxRichTextObject* obj = GetFocusObject()->GetLeafObjectAtPosition(pos);
4250 if (obj && obj->IsTopLevel())
4251 {
4252 // Don't use the attributes of a top-level object, since they might apply
4253 // to content of the object, e.g. background colour.
4254 SetDefaultStyle(wxRichTextAttr());
4255 return true;
4256 }
4257 else if (GetUncombinedStyle(pos, attr))
4258 {
4259 SetDefaultStyle(attr);
4260 return true;
4261 }
4262
4263 return false;
4264}
4265
4266/// Returns the first visible position in the current view
4267long wxRichTextCtrl::GetFirstVisiblePosition() const
4268{
4269 wxRichTextLine* line = GetFocusObject()->GetLineAtYPosition(GetUnscaledPoint(GetLogicalPoint(wxPoint(0, 0))).y);
4270 if (line)
4271 return line->GetAbsoluteRange().GetStart();
4272 else
4273 return 0;
4274}
4275
4276/// Get the first visible point in the window
4277wxPoint wxRichTextCtrl::GetFirstVisiblePoint() const
4278{
4279 int ppuX, ppuY;
4280 int startXUnits, startYUnits;
4281
4282 GetScrollPixelsPerUnit(& ppuX, & ppuY);
4283 GetViewStart(& startXUnits, & startYUnits);
4284
4285 return wxPoint(startXUnits * ppuX, startYUnits * ppuY);
4286}
4287
4288/// The adjusted caret position is the character position adjusted to take
4289/// into account whether we're at the start of a paragraph, in which case
4290/// style information should be taken from the next position, not current one.
4291long wxRichTextCtrl::GetAdjustedCaretPosition(long caretPos) const
4292{
4293 wxRichTextParagraph* para = GetFocusObject()->GetParagraphAtPosition(caretPos+1);
4294
4295 if (para && (caretPos+1 == para->GetRange().GetStart()))
4296 caretPos ++;
4297 return caretPos;
4298}
4299
4300/// Get/set the selection range in character positions. -1, -1 means no selection.
4301/// The range is in API convention, i.e. a single character selection is denoted
4302/// by (n, n+1)
4303wxRichTextRange wxRichTextCtrl::GetSelectionRange() const
4304{
4305 wxRichTextRange range = GetInternalSelectionRange();
4306 if (range != wxRichTextRange(-2,-2) && range != wxRichTextRange(-1,-1))
4307 range.SetEnd(range.GetEnd() + 1);
4308 return range;
4309}
4310
4311void wxRichTextCtrl::SetSelectionRange(const wxRichTextRange& range)
4312{
4313 SetSelection(range.GetStart(), range.GetEnd());
4314}
4315
4316/// Set list style
4317bool wxRichTextCtrl::SetListStyle(const wxRichTextRange& range, wxRichTextListStyleDefinition* def, int flags, int startFrom, int specifiedLevel)
4318{
4319 return GetFocusObject()->SetListStyle(range.ToInternal(), def, flags, startFrom, specifiedLevel);
4320}
4321
4322bool wxRichTextCtrl::SetListStyle(const wxRichTextRange& range, const wxString& defName, int flags, int startFrom, int specifiedLevel)
4323{
4324 return GetFocusObject()->SetListStyle(range.ToInternal(), defName, flags, startFrom, specifiedLevel);
4325}
4326
4327/// Clear list for given range
4328bool wxRichTextCtrl::ClearListStyle(const wxRichTextRange& range, int flags)
4329{
4330 return GetFocusObject()->ClearListStyle(range.ToInternal(), flags);
4331}
4332
4333/// Number/renumber any list elements in the given range
4334bool wxRichTextCtrl::NumberList(const wxRichTextRange& range, wxRichTextListStyleDefinition* def, int flags, int startFrom, int specifiedLevel)
4335{
4336 return GetFocusObject()->NumberList(range.ToInternal(), def, flags, startFrom, specifiedLevel);
4337}
4338
4339bool wxRichTextCtrl::NumberList(const wxRichTextRange& range, const wxString& defName, int flags, int startFrom, int specifiedLevel)
4340{
4341 return GetFocusObject()->NumberList(range.ToInternal(), defName, flags, startFrom, specifiedLevel);
4342}
4343
4344/// Promote the list items within the given range. promoteBy can be a positive or negative number, e.g. 1 or -1
4345bool wxRichTextCtrl::PromoteList(int promoteBy, const wxRichTextRange& range, wxRichTextListStyleDefinition* def, int flags, int specifiedLevel)
4346{
4347 return GetFocusObject()->PromoteList(promoteBy, range.ToInternal(), def, flags, specifiedLevel);
4348}
4349
4350bool wxRichTextCtrl::PromoteList(int promoteBy, const wxRichTextRange& range, const wxString& defName, int flags, int specifiedLevel)
4351{
4352 return GetFocusObject()->PromoteList(promoteBy, range.ToInternal(), defName, flags, specifiedLevel);
4353}
4354
4355// Given a character position at which there is a list style, find the range
4356// encompassing the same list style by looking backwards and forwards.
4357wxRichTextRange wxRichTextCtrl::FindRangeForList(long pos, bool& isNumberedList)
4358{
4359 wxRichTextParagraphLayoutBox* focusObject = GetFocusObject();
4360 wxRichTextRange range = wxRichTextRange(-1, -1);
4361 wxRichTextParagraph* para = focusObject->GetParagraphAtPosition(pos);
4362 if (!para || !para->GetAttributes().HasListStyleName())
4363 return range;
4364 else
4365 {
4366 wxString listStyle = para->GetAttributes().GetListStyleName();
4367 range = para->GetRange();
4368
4369 isNumberedList = para->GetAttributes().HasBulletNumber();
4370
4371 // Search back
4372 wxRichTextObjectList::compatibility_iterator initialNode = focusObject->GetChildren().Find(para);
4373 if (initialNode)
4374 {
4375 wxRichTextObjectList::compatibility_iterator startNode = initialNode->GetPrevious();
4376 while (startNode)
4377 {
4378 wxRichTextParagraph* p = wxDynamicCast(startNode->GetData(), wxRichTextParagraph);
4379 if (p)
4380 {
4381 if (!p->GetAttributes().HasListStyleName() || p->GetAttributes().GetListStyleName() != listStyle)
4382 break;
4383 else
4384 range.SetStart(p->GetRange().GetStart());
4385 }
4386
4387 startNode = startNode->GetPrevious();
4388 }
4389
4390 // Search forward
4391 wxRichTextObjectList::compatibility_iterator endNode = initialNode->GetNext();
4392 while (endNode)
4393 {
4394 wxRichTextParagraph* p = wxDynamicCast(endNode->GetData(), wxRichTextParagraph);
4395 if (p)
4396 {
4397 if (!p->GetAttributes().HasListStyleName() || p->GetAttributes().GetListStyleName() != listStyle)
4398 break;
4399 else
4400 range.SetEnd(p->GetRange().GetEnd());
4401 }
4402
4403 endNode = endNode->GetNext();
4404 }
4405 }
4406 }
4407 return range;
4408}
4409
4410/// Deletes the content in the given range
4411bool wxRichTextCtrl::Delete(const wxRichTextRange& range)
4412{
4413 return GetFocusObject()->DeleteRangeWithUndo(range.ToInternal(), this, & GetBuffer());
4414}
4415
4416const wxArrayString& wxRichTextCtrl::GetAvailableFontNames()
4417{
4418 if (sm_availableFontNames.GetCount() == 0)
4419 {
4420 sm_availableFontNames = wxFontEnumerator::GetFacenames();
4421 sm_availableFontNames.Sort();
4422 }
4423 return sm_availableFontNames;
4424}
4425
4426void wxRichTextCtrl::ClearAvailableFontNames()
4427{
4428 sm_availableFontNames.Clear();
4429}
4430
4431void wxRichTextCtrl::OnSysColourChanged(wxSysColourChangedEvent& WXUNUSED(event))
4432{
4433 //wxLogDebug(wxT("wxRichTextCtrl::OnSysColourChanged"));
4434
4435 wxTextAttrEx basicStyle = GetBasicStyle();
4436 basicStyle.SetTextColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT));
4437 SetBasicStyle(basicStyle);
4438 SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW));
4439
4440 Refresh();
4441}
4442
4443// Refresh the area affected by a selection change
4444bool wxRichTextCtrl::RefreshForSelectionChange(const wxRichTextSelection& oldSelection, const wxRichTextSelection& newSelection)
4445{
4446 // If the selection is not part of the focus object, or we have multiple ranges, then the chances are that
4447 // the selection contains whole containers rather than just text, so refresh everything
4448 // for now as it would be hard to compute the rectangle bounding all selections.
4449 // TODO: improve on this.
4450 if ((oldSelection.IsValid() && (oldSelection.GetContainer() != GetFocusObject() || oldSelection.GetCount() > 1)) ||
4451 (newSelection.IsValid() && (newSelection.GetContainer() != GetFocusObject() || newSelection.GetCount() > 1)))
4452 {
4453 Refresh(false);
4454 return true;
4455 }
4456
4457 wxRichTextRange oldRange, newRange;
4458 if (oldSelection.IsValid())
4459 oldRange = oldSelection.GetRange();
4460 else
4461 oldRange = wxRICHTEXT_NO_SELECTION;
4462 if (newSelection.IsValid())
4463 newRange = newSelection.GetRange();
4464 else
4465 newRange = wxRICHTEXT_NO_SELECTION;
4466
4467 // Calculate the refresh rectangle - just the affected lines
4468 long firstPos, lastPos;
4469 if (oldRange.GetStart() == -2 && newRange.GetStart() != -2)
4470 {
4471 firstPos = newRange.GetStart();
4472 lastPos = newRange.GetEnd();
4473 }
4474 else if (oldRange.GetStart() != -2 && newRange.GetStart() == -2)
4475 {
4476 firstPos = oldRange.GetStart();
4477 lastPos = oldRange.GetEnd();
4478 }
4479 else if (oldRange.GetStart() == -2 && newRange.GetStart() == -2)
4480 {
4481 return false;
4482 }
4483 else
4484 {
4485 firstPos = wxMin(oldRange.GetStart(), newRange.GetStart());
4486 lastPos = wxMax(oldRange.GetEnd(), newRange.GetEnd());
4487 }
4488
4489 wxRichTextLine* firstLine = GetFocusObject()->GetLineAtPosition(firstPos);
4490 wxRichTextLine* lastLine = GetFocusObject()->GetLineAtPosition(lastPos);
4491
4492 if (firstLine && lastLine)
4493 {
4494 wxSize clientSize = GetClientSize();
4495 wxPoint pt1 = GetPhysicalPoint(GetScaledPoint(firstLine->GetAbsolutePosition()));
4496 wxPoint pt2 = GetPhysicalPoint(GetScaledPoint(lastLine->GetAbsolutePosition())) + wxPoint(0, (int) (0.5 + lastLine->GetSize().y * GetScale()));
4497
4498 pt1.x = 0;
4499 pt1.y = wxMax(0, pt1.y);
4500 pt2.x = 0;
4501 pt2.y = wxMin(clientSize.y, pt2.y);
4502
4503 wxRect rect(pt1, wxSize(clientSize.x, pt2.y - pt1.y));
4504 RefreshRect(rect, false);
4505 }
4506 else
4507 Refresh(false);
4508
4509 return true;
4510}
4511
4512// margins functions
4513bool wxRichTextCtrl::DoSetMargins(const wxPoint& pt)
4514{
4515 GetBuffer().GetAttributes().GetTextBoxAttr().GetMargins().GetLeft().SetValue(pt.x, wxTEXT_ATTR_UNITS_PIXELS);
4516 GetBuffer().GetAttributes().GetTextBoxAttr().GetMargins().GetRight().SetValue(pt.x, wxTEXT_ATTR_UNITS_PIXELS);
4517 GetBuffer().GetAttributes().GetTextBoxAttr().GetMargins().GetTop().SetValue(pt.y, wxTEXT_ATTR_UNITS_PIXELS);
4518 GetBuffer().GetAttributes().GetTextBoxAttr().GetMargins().GetBottom().SetValue(pt.y, wxTEXT_ATTR_UNITS_PIXELS);
4519
4520 return true;
4521}
4522
4523wxPoint wxRichTextCtrl::DoGetMargins() const
4524{
4525 return wxPoint(GetBuffer().GetAttributes().GetTextBoxAttr().GetMargins().GetLeft().GetValue(),
4526 GetBuffer().GetAttributes().GetTextBoxAttr().GetMargins().GetTop().GetValue());
4527}
4528
4529bool wxRichTextCtrl::SetFocusObject(wxRichTextParagraphLayoutBox* obj, bool setCaretPosition)
4530{
4531 if (obj && !obj->AcceptsFocus())
4532 return false;
4533
4534 wxRichTextParagraphLayoutBox* oldContainer = GetFocusObject();
4535 bool changingContainer = (m_focusObject != obj);
4536
4537 if (changingContainer && HasSelection())
4538 SelectNone();
4539
4540 m_focusObject = obj;
4541
4542 if (!obj)
4543 m_focusObject = & m_buffer;
4544
4545 if (setCaretPosition && changingContainer)
4546 {
4547 m_selection.Reset();
4548 m_selectionAnchor = -2;
4549 m_selectionAnchorObject = NULL;
4550 m_selectionState = wxRichTextCtrlSelectionState_Normal;
4551
4552 long pos = -1;
4553
4554 m_caretAtLineStart = false;
4555 MoveCaret(pos, m_caretAtLineStart);
4556 SetDefaultStyleToCursorStyle();
4557
4558 wxRichTextEvent cmdEvent(
4559 wxEVT_RICHTEXT_FOCUS_OBJECT_CHANGED,
4560 GetId());
4561 cmdEvent.SetEventObject(this);
4562 cmdEvent.SetPosition(m_caretPosition+1);
4563 cmdEvent.SetOldContainer(oldContainer);
4564 cmdEvent.SetContainer(m_focusObject);
4565
4566 GetEventHandler()->ProcessEvent(cmdEvent);
4567 }
4568 return true;
4569}
4570
4571#if wxUSE_DRAG_AND_DROP
4572void wxRichTextCtrl::OnDrop(wxCoord WXUNUSED(x), wxCoord WXUNUSED(y), wxDragResult def, wxDataObject* DataObj)
4573{
4574 m_preDrag = false;
4575
4576 if ((def != wxDragCopy) && (def != wxDragMove))
4577 {
4578 return;
4579 }
4580
4581 if (!GetSelection().IsValid())
4582 {
4583 return;
4584 }
4585
4586 wxRichTextParagraphLayoutBox* originContainer = GetSelection().GetContainer();
4587 wxRichTextParagraphLayoutBox* destContainer = GetFocusObject(); // This will be the drop container, not necessarily the same as the origin one
4588
4589 wxRichTextBuffer* richTextBuffer = ((wxRichTextBufferDataObject*)DataObj)->GetRichTextBuffer();
4590 if (richTextBuffer)
4591 {
4592 long position = GetCaretPosition();
4593 wxRichTextRange selectionrange = GetInternalSelectionRange();
4594 if (selectionrange.Contains(position) && (def == wxDragMove))
4595 {
4596 // It doesn't make sense to move onto itself
4597 return;
4598 }
4599
4600 // If we're moving, and the data is being moved forward, we need to drop first, then delete the selection
4601 // If moving backwards, we need to delete then drop. If we're copying (or doing nothing) we don't delete anyway
4602 bool DeleteAfter = (def == wxDragMove) && (position > selectionrange.GetEnd());
4603 if ((def == wxDragMove) && !DeleteAfter)
4604 {
4605 // We can't use e.g. DeleteSelectedContent() as it uses the focus container
4606 originContainer->DeleteRangeWithUndo(selectionrange, this, &GetBuffer());
4607 }
4608
4609 destContainer->InsertParagraphsWithUndo(&GetBuffer(), position+1, *richTextBuffer, this, 0);
4610 ShowPosition(position + richTextBuffer->GetOwnRange().GetEnd());
4611
4612 delete richTextBuffer;
4613
4614 if (DeleteAfter)
4615 {
4616 // We can't use e.g. DeleteSelectedContent() as it uses the focus container
4617 originContainer->DeleteRangeWithUndo(selectionrange, this, &GetBuffer());
4618 }
4619
4620 SelectNone();
4621 Refresh();
4622 }
4623}
4624#endif // wxUSE_DRAG_AND_DROP
4625
4626
4627#if wxUSE_DRAG_AND_DROP
4628bool wxRichTextDropSource::GiveFeedback(wxDragResult WXUNUSED(effect))
4629{
4630 wxCHECK_MSG(m_rtc, false, wxT("NULL m_rtc"));
4631
4632 long position = 0;
4633 int hit = 0;
4634 wxRichTextObject* hitObj = NULL;
4635 wxRichTextParagraphLayoutBox* container = m_rtc->FindContainerAtPoint(m_rtc->GetUnscaledPoint(m_rtc->ScreenToClient(wxGetMousePosition())), position, hit, hitObj);
4636
4637 if (!(hit & wxRICHTEXT_HITTEST_NONE) && container && container->AcceptsFocus())
4638 {
4639 m_rtc->StoreFocusObject(container);
4640 m_rtc->SetCaretPositionAfterClick(container, position, hit);
4641 }
4642
4643 return false; // so that the base-class sets a cursor
4644}
4645#endif // wxUSE_DRAG_AND_DROP
4646
4647bool wxRichTextCtrl::CanDeleteRange(wxRichTextParagraphLayoutBox& WXUNUSED(container), const wxRichTextRange& WXUNUSED(range)) const
4648{
4649 return true;
4650}
4651
4652bool wxRichTextCtrl::CanInsertContent(wxRichTextParagraphLayoutBox& WXUNUSED(container), long WXUNUSED(pos)) const
4653{
4654 return true;
4655}
4656
4657void wxRichTextCtrl::EnableVerticalScrollbar(bool enable)
4658{
4659 m_verticalScrollbarEnabled = enable;
4660 SetupScrollbars();
4661}
4662
4663void wxRichTextCtrl::SetFontScale(double fontScale, bool refresh)
4664{
4665 GetBuffer().SetFontScale(fontScale);
4666 if (refresh)
4667 {
4668 GetBuffer().Invalidate(wxRICHTEXT_ALL);
4669 Refresh();
4670 }
4671}
4672
4673void wxRichTextCtrl::SetDimensionScale(double dimScale, bool refresh)
4674{
4675 GetBuffer().SetDimensionScale(dimScale);
4676 if (refresh)
4677 {
4678 GetBuffer().Invalidate(wxRICHTEXT_ALL);
4679 Refresh();
4680 }
4681}
4682
4683// Sets an overall scale factor for displaying and editing the content.
4684void wxRichTextCtrl::SetScale(double scale, bool refresh)
4685{
4686 m_scale = scale;
4687 if (refresh)
4688 {
4689 GetBuffer().Invalidate(wxRICHTEXT_ALL);
4690 Refresh();
4691 }
4692}
4693
4694// Get an unscaled point
4695wxPoint wxRichTextCtrl::GetUnscaledPoint(const wxPoint& pt) const
4696{
4697 if (GetScale() == 1.0)
4698 return pt;
4699 else
4700 return wxPoint((int) (0.5 + double(pt.x) / GetScale()), (int) (0.5 + double(pt.y) / GetScale()));
4701}
4702
4703// Get a scaled point
4704wxPoint wxRichTextCtrl::GetScaledPoint(const wxPoint& pt) const
4705{
4706 if (GetScale() == 1.0)
4707 return pt;
4708 else
4709 return wxPoint((int) (0.5 + double(pt.x) * GetScale()), (int) (0.5 + double(pt.y) * GetScale()));
4710}
4711
4712// Get an unscaled size
4713wxSize wxRichTextCtrl::GetUnscaledSize(const wxSize& sz) const
4714{
4715 if (GetScale() == 1.0)
4716 return sz;
4717 else
4718 return wxSize((int) (0.5 + double(sz.x) / GetScale()), (int) (0.5 + double(sz.y) / GetScale()));
4719}
4720
4721// Get a scaled size
4722wxSize wxRichTextCtrl::GetScaledSize(const wxSize& sz) const
4723{
4724 if (GetScale() == 1.0)
4725 return sz;
4726 else
4727 return wxSize((int) (0.5 + double(sz.x) * GetScale()), (int) (0.5 + double(sz.y) * GetScale()));
4728}
4729
4730// Get an unscaled rect
4731wxRect wxRichTextCtrl::GetUnscaledRect(const wxRect& rect) const
4732{
4733 if (GetScale() == 1.0)
4734 return rect;
4735 else
4736 return wxRect((int) (0.5 + double(rect.x) / GetScale()), (int) (0.5 + double(rect.y) / GetScale()),
4737 (int) (0.5 + double(rect.width) / GetScale()), (int) (0.5 + double(rect.height) / GetScale()));
4738}
4739
4740// Get a scaled rect
4741wxRect wxRichTextCtrl::GetScaledRect(const wxRect& rect) const
4742{
4743 if (GetScale() == 1.0)
4744 return rect;
4745 else
4746 return wxRect((int) (0.5 + double(rect.x) * GetScale()), (int) (0.5 + double(rect.y) * GetScale()),
4747 (int) (0.5 + double(rect.width) * GetScale()), (int) (0.5 + double(rect.height) * GetScale()));
4748}
4749
4750#if wxRICHTEXT_USE_OWN_CARET
4751
4752// ----------------------------------------------------------------------------
4753// initialization and destruction
4754// ----------------------------------------------------------------------------
4755
4756void wxRichTextCaret::Init()
4757{
4758 m_hasFocus = true;
4759 m_refreshEnabled = true;
4760
4761 m_xOld =
4762 m_yOld = -1;
4763 m_richTextCtrl = NULL;
4764 m_needsUpdate = false;
4765 m_flashOn = true;
4766}
4767
4768wxRichTextCaret::~wxRichTextCaret()
4769{
4770 if (m_timer.IsRunning())
4771 m_timer.Stop();
4772}
4773
4774// ----------------------------------------------------------------------------
4775// showing/hiding/moving the caret (base class interface)
4776// ----------------------------------------------------------------------------
4777
4778void wxRichTextCaret::DoShow()
4779{
4780 m_flashOn = true;
4781
4782 if (!m_timer.IsRunning() && GetBlinkTime() > 0)
4783 m_timer.Start(GetBlinkTime());
4784
4785 Refresh();
4786}
4787
4788void wxRichTextCaret::DoHide()
4789{
4790 if (m_timer.IsRunning())
4791 m_timer.Stop();
4792
4793 Refresh();
4794}
4795
4796void wxRichTextCaret::DoMove()
4797{
4798 if (IsVisible())
4799 {
4800 Refresh();
4801
4802 if (m_xOld != -1 && m_yOld != -1)
4803 {
4804 if (m_richTextCtrl && m_refreshEnabled)
4805 {
4806 wxRect rect(wxPoint(m_xOld, m_yOld), GetSize());
4807 wxRect scaledRect = m_richTextCtrl->GetScaledRect(rect);
4808 m_richTextCtrl->RefreshRect(scaledRect, false);
4809 }
4810 }
4811 }
4812
4813 m_xOld = m_x;
4814 m_yOld = m_y;
4815}
4816
4817void wxRichTextCaret::DoSize()
4818{
4819 int countVisible = m_countVisible;
4820 if (countVisible > 0)
4821 {
4822 m_countVisible = 0;
4823 DoHide();
4824 }
4825
4826 if (countVisible > 0)
4827 {
4828 m_countVisible = countVisible;
4829 DoShow();
4830 }
4831}
4832
4833// ----------------------------------------------------------------------------
4834// handling the focus
4835// ----------------------------------------------------------------------------
4836
4837void wxRichTextCaret::OnSetFocus()
4838{
4839 m_hasFocus = true;
4840
4841 if ( IsVisible() )
4842 Refresh();
4843}
4844
4845void wxRichTextCaret::OnKillFocus()
4846{
4847 m_hasFocus = false;
4848}
4849
4850// ----------------------------------------------------------------------------
4851// drawing the caret
4852// ----------------------------------------------------------------------------
4853
4854void wxRichTextCaret::Refresh()
4855{
4856 if (m_richTextCtrl && m_refreshEnabled)
4857 {
4858 wxRect rect(GetPosition(), GetSize());
4859 wxRect rectScaled = m_richTextCtrl->GetScaledRect(rect);
4860 m_richTextCtrl->RefreshRect(rectScaled, false);
4861 }
4862}
4863
4864void wxRichTextCaret::DoDraw(wxDC *dc)
4865{
4866 wxBrush brush(m_caretBrush);
4867 wxPen pen(m_caretPen);
4868 if (m_richTextCtrl && m_richTextCtrl->GetBasicStyle().HasTextColour())
4869 {
4870 brush = wxBrush(m_richTextCtrl->GetBasicStyle().GetTextColour());
4871 pen = wxPen(m_richTextCtrl->GetBasicStyle().GetTextColour());
4872 }
4873 dc->SetBrush((m_hasFocus ? brush : *wxTRANSPARENT_BRUSH));
4874 dc->SetPen(pen);
4875
4876 wxPoint pt(m_x, m_y);
4877
4878 if (m_richTextCtrl)
4879 {
4880 pt = m_richTextCtrl->GetLogicalPoint(pt);
4881 }
4882 if (IsVisible() && m_flashOn)
4883 dc->DrawRectangle(pt.x, pt.y, m_width, m_height);
4884}
4885
4886void wxRichTextCaret::Notify()
4887{
4888 m_flashOn = !m_flashOn;
4889 Refresh();
4890}
4891
4892void wxRichTextCaretTimer::Notify()
4893{
4894 m_caret->Notify();
4895}
4896#endif
4897 // wxRICHTEXT_USE_OWN_CARET
4898
4899// Add an item
4900bool wxRichTextContextMenuPropertiesInfo::AddItem(const wxString& label, wxRichTextObject* obj)
4901{
4902 if (GetCount() < 3)
4903 {
4904 m_labels.Add(label);
4905 m_objects.Add(obj);
4906 return true;
4907 }
4908 else
4909 return false;
4910}
4911
4912// Returns number of menu items were added.
4913int wxRichTextContextMenuPropertiesInfo::AddMenuItems(wxMenu* menu, int startCmd) const
4914{
4915 wxMenuItem* item = menu->FindItem(startCmd);
4916 // If none of the standard properties identifiers are in the menu, add them if necessary.
4917 // If no items to add, just set the text to something generic
4918 if (GetCount() == 0)
4919 {
4920 if (item)
4921 {
4922 menu->SetLabel(startCmd, _("&Properties"));
4923
4924 // Delete the others if necessary
4925 int i;
4926 for (i = startCmd+1; i < startCmd+3; i++)
4927 {
4928 if (menu->FindItem(i))
4929 {
4930 menu->Delete(i);
4931 }
4932 }
4933 }
4934 }
4935 else
4936 {
4937 int i;
4938 int pos = -1;
4939 // Find the position of the first properties item
4940 for (i = 0; i < (int) menu->GetMenuItemCount(); i++)
4941 {
4942 wxMenuItem* item = menu->FindItemByPosition(i);
4943 if (item && item->GetId() == startCmd)
4944 {
4945 pos = i;
4946 break;
4947 }
4948 }
4949
4950 if (pos != -1)
4951 {
4952 int insertBefore = pos+1;
4953 for (i = startCmd; i < startCmd+GetCount(); i++)
4954 {
4955 if (menu->FindItem(i))
4956 {
4957 menu->SetLabel(i, m_labels[i - startCmd]);
4958 }
4959 else
4960 {
4961 if (insertBefore >= (int) menu->GetMenuItemCount())
4962 menu->Append(i, m_labels[i - startCmd]);
4963 else
4964 menu->Insert(insertBefore, i, m_labels[i - startCmd]);
4965 }
4966 insertBefore ++;
4967 }
4968
4969 // Delete any old items still left on the menu
4970 for (i = startCmd + GetCount(); i < startCmd+3; i++)
4971 {
4972 if (menu->FindItem(i))
4973 {
4974 menu->Delete(i);
4975 }
4976 }
4977 }
4978 else
4979 {
4980 // No existing property identifiers were found, so append to the end of the menu.
4981 menu->AppendSeparator();
4982 for (i = startCmd; i < startCmd+GetCount(); i++)
4983 {
4984 menu->Append(i, m_labels[i - startCmd]);
4985 }
4986 }
4987 }
4988
4989 return GetCount();
4990}
4991
4992// Add appropriate menu items for the current container and clicked on object
4993// (and container's parent, if appropriate).
4994int wxRichTextContextMenuPropertiesInfo::AddItems(wxRichTextCtrl* ctrl, wxRichTextObject* container, wxRichTextObject* obj)
4995{
4996 Clear();
4997 if (obj && ctrl->CanEditProperties(obj))
4998 AddItem(ctrl->GetPropertiesMenuLabel(obj), obj);
4999
5000 if (container && container != obj && ctrl->CanEditProperties(container) && m_labels.Index(ctrl->GetPropertiesMenuLabel(container)) == wxNOT_FOUND)
5001 AddItem(ctrl->GetPropertiesMenuLabel(container), container);
5002
5003 if (container && container->GetParent() && ctrl->CanEditProperties(container->GetParent()) && m_labels.Index(ctrl->GetPropertiesMenuLabel(container->GetParent())) == wxNOT_FOUND)
5004 AddItem(ctrl->GetPropertiesMenuLabel(container->GetParent()), container->GetParent());
5005
5006 return GetCount();
5007}
5008
5009#endif
5010 // wxUSE_RICHTEXT
wxWidgets (Impactor)