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