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