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[wxWidgets.git] / src / richtext / richtextctrl.cpp
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5d7836c4 1/////////////////////////////////////////////////////////////////////////////
faa94f3e 2// Name: src/richtext/richeditctrl.cpp
5d7836c4
JS		 3// Purpose: A rich edit control
4// Author: Julian Smart
7fe8059f 5// Modified by:
5d7836c4 6// Created: 2005-09-30
7fe8059f 7// RCS-ID: $Id$
5d7836c4
JS		 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__
9eddec69 16 #pragma hdrstop
5d7836c4
JS		 17#endif
18
b01ca8b6
JS		 19#if wxUSE_RICHTEXT
20
21#include "wx/richtext/richtextctrl.h"
ab14c7aa 22#include "wx/richtext/richtextstyles.h"
b01ca8b6 23
5d7836c4 24#ifndef WX_PRECOMP
fe5aa22c 25 #include "wx/wx.h"
9eddec69 26 #include "wx/settings.h"
5d7836c4
JS		 27#endif
28
5d7836c4
JS		 29#include "wx/textfile.h"
30#include "wx/ffile.h"
5d7836c4
JS		 31#include "wx/filename.h"
32#include "wx/dcbuffer.h"
5d7836c4 33#include "wx/arrimpl.cpp"
dadd4f55 34#include "wx/fontenum.h"
5d7836c4 35
27e20452
JS		 36// DLL options compatibility check:
37#include "wx/app.h"
38WX_CHECK_BUILD_OPTIONS("wxRichTextCtrl")
39
5d7836c4
JS		 40DEFINE_EVENT_TYPE(wxEVT_COMMAND_RICHTEXT_LEFT_CLICK)
41DEFINE_EVENT_TYPE(wxEVT_COMMAND_RICHTEXT_MIDDLE_CLICK)
42DEFINE_EVENT_TYPE(wxEVT_COMMAND_RICHTEXT_RIGHT_CLICK)
43DEFINE_EVENT_TYPE(wxEVT_COMMAND_RICHTEXT_LEFT_DCLICK)
44DEFINE_EVENT_TYPE(wxEVT_COMMAND_RICHTEXT_RETURN)
5912d19e
JS		 45DEFINE_EVENT_TYPE(wxEVT_COMMAND_RICHTEXT_CHARACTER)
46DEFINE_EVENT_TYPE(wxEVT_COMMAND_RICHTEXT_DELETE)
47
d2d0adc7
JS		 48DEFINE_EVENT_TYPE(wxEVT_COMMAND_RICHTEXT_STYLESHEET_REPLACING)
49DEFINE_EVENT_TYPE(wxEVT_COMMAND_RICHTEXT_STYLESHEET_REPLACED)
50DEFINE_EVENT_TYPE(wxEVT_COMMAND_RICHTEXT_STYLESHEET_CHANGING)
51DEFINE_EVENT_TYPE(wxEVT_COMMAND_RICHTEXT_STYLESHEET_CHANGED)
5d7836c4 52
5912d19e
JS		 53DEFINE_EVENT_TYPE(wxEVT_COMMAND_RICHTEXT_CONTENT_INSERTED)
54DEFINE_EVENT_TYPE(wxEVT_COMMAND_RICHTEXT_CONTENT_DELETED)
55DEFINE_EVENT_TYPE(wxEVT_COMMAND_RICHTEXT_STYLE_CHANGED)
56DEFINE_EVENT_TYPE(wxEVT_COMMAND_RICHTEXT_SELECTION_CHANGED)
57
5d7836c4 58IMPLEMENT_CLASS( wxRichTextCtrl, wxControl )
5d7836c4
JS		 59
60IMPLEMENT_CLASS( wxRichTextEvent, wxNotifyEvent )
61
5d7836c4 62BEGIN_EVENT_TABLE( wxRichTextCtrl, wxControl )
5d7836c4
JS		 63 EVT_PAINT(wxRichTextCtrl::OnPaint)
64 EVT_ERASE_BACKGROUND(wxRichTextCtrl::OnEraseBackground)
4d551ad5 65 EVT_IDLE(wxRichTextCtrl::OnIdle)
c59f6793 66 EVT_SCROLLWIN(wxRichTextCtrl::OnScroll)
5d7836c4
JS		 67 EVT_LEFT_DOWN(wxRichTextCtrl::OnLeftClick)
68 EVT_MOTION(wxRichTextCtrl::OnMoveMouse)
69 EVT_LEFT_UP(wxRichTextCtrl::OnLeftUp)
70 EVT_RIGHT_DOWN(wxRichTextCtrl::OnRightClick)
71 EVT_MIDDLE_DOWN(wxRichTextCtrl::OnMiddleClick)
72 EVT_LEFT_DCLICK(wxRichTextCtrl::OnLeftDClick)
73 EVT_CHAR(wxRichTextCtrl::OnChar)
74 EVT_SIZE(wxRichTextCtrl::OnSize)
75 EVT_SET_FOCUS(wxRichTextCtrl::OnSetFocus)
76 EVT_KILL_FOCUS(wxRichTextCtrl::OnKillFocus)
61f84e24 77 EVT_MOUSE_CAPTURE_LOST(wxRichTextCtrl::OnCaptureLost)
5d7836c4
JS		 78 EVT_CONTEXT_MENU(wxRichTextCtrl::OnContextMenu)
79
80 EVT_MENU(wxID_UNDO, wxRichTextCtrl::OnUndo)
81 EVT_UPDATE_UI(wxID_UNDO, wxRichTextCtrl::OnUpdateUndo)
82
83 EVT_MENU(wxID_REDO, wxRichTextCtrl::OnRedo)
84 EVT_UPDATE_UI(wxID_REDO, wxRichTextCtrl::OnUpdateRedo)
85
86 EVT_MENU(wxID_COPY, wxRichTextCtrl::OnCopy)
87 EVT_UPDATE_UI(wxID_COPY, wxRichTextCtrl::OnUpdateCopy)
88
89 EVT_MENU(wxID_PASTE, wxRichTextCtrl::OnPaste)
90 EVT_UPDATE_UI(wxID_PASTE, wxRichTextCtrl::OnUpdatePaste)
91
92 EVT_MENU(wxID_CUT, wxRichTextCtrl::OnCut)
93 EVT_UPDATE_UI(wxID_CUT, wxRichTextCtrl::OnUpdateCut)
94
95 EVT_MENU(wxID_CLEAR, wxRichTextCtrl::OnClear)
96 EVT_UPDATE_UI(wxID_CLEAR, wxRichTextCtrl::OnUpdateClear)
97
98 EVT_MENU(wxID_SELECTALL, wxRichTextCtrl::OnSelectAll)
99 EVT_UPDATE_UI(wxID_SELECTALL, wxRichTextCtrl::OnUpdateSelectAll)
100END_EVENT_TABLE()
101
102/*!
103 * wxRichTextCtrl
104 */
105
dadd4f55
JS		 106wxArrayString wxRichTextCtrl::sm_availableFontNames;
107
5d7836c4 108wxRichTextCtrl::wxRichTextCtrl()
343ae70d 109 : wxScrollHelper(this)
5d7836c4
JS		 110{
111 Init();
112}
113
343ae70d
VZ		 114wxRichTextCtrl::wxRichTextCtrl(wxWindow* parent,
115 wxWindowID id,
116 const wxString& value,
117 const wxPoint& pos,
118 const wxSize& size,
4e8d9558
JS		 119 long style,
120 const wxValidator& validator,
121 const wxString& name)
343ae70d 122 : wxScrollHelper(this)
5d7836c4
JS		 123{
124 Init();
4e8d9558 125 Create(parent, id, value, pos, size, style, validator, name);
5d7836c4
JS		 126}
127
128/// Creation
4e8d9558
JS		 129bool wxRichTextCtrl::Create( wxWindow* parent, wxWindowID id, const wxString& value, const wxPoint& pos, const wxSize& size, long style,
130 const wxValidator& validator, const wxString& name)
5d7836c4 131{
343ae70d 132 if (!wxTextCtrlBase::Create(parent, id, pos, size,
4e8d9558
JS		 133 style|wxFULL_REPAINT_ON_RESIZE,
134 validator, name))
5d7836c4 135 return false;
5d7836c4
JS		 136
137 if (!GetFont().Ok())
138 {
139 SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
140 }
7fe8059f 141
85d8909b 142 GetBuffer().Reset();
5d7836c4 143 GetBuffer().SetRichTextCtrl(this);
88bee7e6 144
ea160b2e
JS		 145 SetCaret(new wxCaret(this, wxRICHTEXT_DEFAULT_CARET_WIDTH, 16));
146 GetCaret()->Show();
5d7836c4 147
dadd4f55
JS		 148 if (style & wxTE_READONLY)
149 SetEditable(false);
150
42688aea 151 // The base attributes must all have default values
5d7836c4
JS		 152 wxTextAttrEx attributes;
153 attributes.SetFont(GetFont());
154 attributes.SetTextColour(*wxBLACK);
5d7836c4 155 attributes.SetAlignment(wxTEXT_ALIGNMENT_LEFT);
3e3a754f
JS		 156 attributes.SetLineSpacing(10);
157 attributes.SetParagraphSpacingAfter(10);
158 attributes.SetParagraphSpacingBefore(0);
42688aea
JS		 159 attributes.SetTextEffects(0);
160 attributes.SetTextEffectFlags(wxTEXT_ATTR_EFFECT_STRIKETHROUGH|wxTEXT_ATTR_EFFECT_CAPITALS);
d2d0adc7 161
5d7836c4
JS		 162 SetBasicStyle(attributes);
163
fe5aa22c
JS		 164 // The default attributes will be merged with base attributes, so
165 // can be empty to begin with
166 wxTextAttrEx defaultAttributes;
167 SetDefaultStyle(defaultAttributes);
168
7fe8059f 169 SetBackgroundColour(*wxWHITE);
5d7836c4
JS		 170 SetBackgroundStyle(wxBG_STYLE_CUSTOM);
171
7fe8059f 172 // Tell the sizers to use the given or best size
170acdc9 173 SetInitialSize(size);
7fe8059f 174
3e3a754f 175#if wxRICHTEXT_BUFFERED_PAINTING
5d7836c4
JS		 176 // Create a buffer
177 RecreateBuffer(size);
3e3a754f 178#endif
5d7836c4 179
d2d0adc7
JS		 180 m_textCursor = wxCursor(wxCURSOR_IBEAM);
181 m_urlCursor = wxCursor(wxCURSOR_HAND);
182
183 SetCursor(m_textCursor);
61399247 184
27e20452
JS		 185 if (!value.IsEmpty())
186 SetValue(value);
7fe8059f 187
d2d0adc7
JS		 188 GetBuffer().AddEventHandler(this);
189
5d7836c4
JS		 190 return true;
191}
192
193wxRichTextCtrl::~wxRichTextCtrl()
194{
d2d0adc7 195 GetBuffer().RemoveEventHandler(this);
88bee7e6 196
5d7836c4
JS		 197 delete m_contextMenu;
198}
199
200/// Member initialisation
201void wxRichTextCtrl::Init()
202{
203 m_freezeCount = 0;
204 m_contextMenu = NULL;
205 m_caret = NULL;
206 m_caretPosition = -1;
207 m_selectionRange.SetRange(-2, -2);
208 m_selectionAnchor = -2;
209 m_editable = true;
210 m_caretAtLineStart = false;
211 m_dragging = false;
4d551ad5
JS		 212 m_fullLayoutRequired = false;
213 m_fullLayoutTime = 0;
214 m_fullLayoutSavedPosition = 0;
215 m_delayedLayoutThreshold = wxRICHTEXT_DEFAULT_DELAYED_LAYOUT_THRESHOLD;
ab14c7aa 216 m_caretPositionForDefaultStyle = -2;
5d7836c4
JS		 217}
218
219/// Call Freeze to prevent refresh
220void wxRichTextCtrl::Freeze()
221{
222 m_freezeCount ++;
223}
224
225/// Call Thaw to refresh
0bab774b 226void wxRichTextCtrl::Thaw()
5d7836c4
JS		 227{
228 m_freezeCount --;
229
0bab774b 230 if (m_freezeCount == 0)
5d7836c4
JS		 231 {
232 SetupScrollbars();
76bcd815 233 Refresh(false);
5d7836c4
JS		 234 }
235}
236
237/// Clear all text
238void wxRichTextCtrl::Clear()
239{
85d8909b 240 m_buffer.ResetAndClearCommands();
5d7836c4
JS		 241 m_buffer.SetDirty(true);
242 m_caretPosition = -1;
ab14c7aa 243 m_caretPositionForDefaultStyle = -2;
5d7836c4
JS		 244 m_caretAtLineStart = false;
245 m_selectionRange.SetRange(-2, -2);
246
3956d02a
JS		 247 SetScrollbars(0, 0, 0, 0, 0, 0);
248
5d7836c4
JS		 249 if (m_freezeCount == 0)
250 {
251 SetupScrollbars();
76bcd815 252 Refresh(false);
5d7836c4 253 }
343ae70d 254 SendTextUpdatedEvent();
5d7836c4
JS		 255}
256
257/// Painting
258void wxRichTextCtrl::OnPaint(wxPaintEvent& WXUNUSED(event))
259{
ea160b2e 260 if (GetCaret() && GetCaret()->IsVisible())
d2142335
JS		 261 GetCaret()->Hide();
262
5d7836c4 263 {
3e3a754f 264#if wxRICHTEXT_BUFFERED_PAINTING
c59f6793 265 wxBufferedPaintDC dc(this, m_bufferBitmap);
3e3a754f
JS		 266#else
267 wxPaintDC dc(this);
268#endif
c59f6793 269 PrepareDC(dc);
41e155b4 270
c59f6793
JS		 271 if (m_freezeCount > 0)
272 return;
41e155b4 273
c59f6793 274 dc.SetFont(GetFont());
41e155b4 275
c59f6793
JS		 276 // Paint the background
277 PaintBackground(dc);
41e155b4 278
ea160b2e
JS		 279 // wxRect drawingArea(GetLogicalPoint(wxPoint(0, 0)), GetClientSize());
280
281 wxRect drawingArea(GetUpdateRegion().GetBox());
282 drawingArea.SetPosition(GetLogicalPoint(drawingArea.GetPosition()));
283
c59f6793
JS		 284 wxRect availableSpace(GetClientSize());
285 if (GetBuffer().GetDirty())
286 {
287 GetBuffer().Layout(dc, availableSpace, wxRICHTEXT_FIXED_WIDTH|wxRICHTEXT_VARIABLE_HEIGHT);
288 GetBuffer().SetDirty(false);
289 SetupScrollbars();
290 }
41e155b4 291
96c9f0f6 292 GetBuffer().Draw(dc, GetBuffer().GetRange(), GetInternalSelectionRange(), drawingArea, 0 /* descent */, 0 /* flags */);
5d7836c4 293 }
d2142335 294
ea160b2e 295 if (GetCaret() && !GetCaret()->IsVisible())
d2142335
JS		 296 GetCaret()->Show();
297
7383cf9d 298 PositionCaret();
5d7836c4
JS		 299}
300
301// Empty implementation, to prevent flicker
302void wxRichTextCtrl::OnEraseBackground(wxEraseEvent& WXUNUSED(event))
303{
304}
305
306void wxRichTextCtrl::OnSetFocus(wxFocusEvent& WXUNUSED(event))
307{
ea160b2e
JS		 308 if (GetCaret())
309 {
310 if (!GetCaret()->IsVisible())
311 GetCaret()->Show();
312 PositionCaret();
313 }
c59f6793 314
ea160b2e
JS		 315 // if (!IsFrozen())
316 // Refresh(false);
5d7836c4
JS		 317}
318
319void wxRichTextCtrl::OnKillFocus(wxFocusEvent& WXUNUSED(event))
320{
ea160b2e
JS		 321 if (GetCaret() && GetCaret()->IsVisible())
322 GetCaret()->Hide();
c59f6793 323
ea160b2e
JS		 324 // if (!IsFrozen())
325 // Refresh(false);
5d7836c4
JS		 326}
327
61f84e24
JS		 328void wxRichTextCtrl::OnCaptureLost(wxMouseCaptureLostEvent& WXUNUSED(event))
329{
88bee7e6 330 m_dragging = false;
61f84e24
JS		 331}
332
5d7836c4
JS		 333/// Left-click
334void wxRichTextCtrl::OnLeftClick(wxMouseEvent& event)
335{
336 SetFocus();
337
338 wxClientDC dc(this);
339 PrepareDC(dc);
340 dc.SetFont(GetFont());
7fe8059f 341
5d7836c4
JS		 342 long position = 0;
343 int hit = GetBuffer().HitTest(dc, event.GetLogicalPosition(dc), position);
344
345 if (hit != wxRICHTEXT_HITTEST_NONE)
346 {
347 m_dragStart = event.GetLogicalPosition(dc);
348 m_dragging = true;
349 CaptureMouse();
350
351 SelectNone();
352
353 bool caretAtLineStart = false;
354
355 if (hit & wxRICHTEXT_HITTEST_BEFORE)
356 {
357 // If we're at the start of a line (but not first in para)
358 // then we should keep the caret showing at the start of the line
359 // by showing the m_caretAtLineStart flag.
360 wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(position);
361 wxRichTextLine* line = GetBuffer().GetLineAtPosition(position);
362
1e967276 363 if (line && para && line->GetAbsoluteRange().GetStart() == position && para->GetRange().GetStart() != position)
5d7836c4
JS		 364 caretAtLineStart = true;
365 position --;
366 }
367
368 MoveCaret(position, caretAtLineStart);
369 SetDefaultStyleToCursorStyle();
5d7836c4
JS		 370 }
371
372 event.Skip();
373}
374
375/// Left-up
d2d0adc7 376void wxRichTextCtrl::OnLeftUp(wxMouseEvent& event)
5d7836c4
JS		 377{
378 if (m_dragging)
379 {
380 m_dragging = false;
381 if (GetCapture() == this)
382 ReleaseMouse();
d2d0adc7
JS		 383
384 // See if we clicked on a URL
385 wxClientDC dc(this);
386 PrepareDC(dc);
387 dc.SetFont(GetFont());
388
389 long position = 0;
390 wxPoint logicalPt = event.GetLogicalPosition(dc);
391 int hit = GetBuffer().HitTest(dc, logicalPt, position);
88bee7e6 392
d2d0adc7
JS		 393 if (hit != wxRICHTEXT_HITTEST_NONE)
394 {
db6634e0
JS		 395 wxRichTextEvent cmdEvent(
396 wxEVT_COMMAND_RICHTEXT_LEFT_CLICK,
397 GetId());
398 cmdEvent.SetEventObject(this);
399 cmdEvent.SetPosition(m_caretPosition+1);
400
401 if (!GetEventHandler()->ProcessEvent(cmdEvent))
d2d0adc7 402 {
db6634e0
JS		 403 wxTextAttrEx attr;
404 if (GetStyle(position, attr))
d2d0adc7 405 {
db6634e0 406 if (attr.HasFlag(wxTEXT_ATTR_URL))
d2d0adc7 407 {
db6634e0
JS		 408 wxString urlTarget = attr.GetURL();
409 if (!urlTarget.IsEmpty())
d2d0adc7 410 {
db6634e0
JS		 411 wxMouseEvent mouseEvent(event);
412
413 long startPos = 0, endPos = 0;
414 wxRichTextObject* obj = GetBuffer().GetLeafObjectAtPosition(position);
415 if (obj)
416 {
417 startPos = obj->GetRange().GetStart();
418 endPos = obj->GetRange().GetEnd();
419 }
420
421 wxTextUrlEvent urlEvent(GetId(), mouseEvent, startPos, endPos);
422 InitCommandEvent(urlEvent);
423
424 urlEvent.SetString(urlTarget);
425
426 GetEventHandler()->ProcessEvent(urlEvent);
88bee7e6 427 }
d2d0adc7
JS		 428 }
429 }
430 }
431 }
5d7836c4
JS		 432 }
433}
434
435/// Left-click
436void wxRichTextCtrl::OnMoveMouse(wxMouseEvent& event)
437{
5d7836c4
JS		 438 wxClientDC dc(this);
439 PrepareDC(dc);
440 dc.SetFont(GetFont());
7fe8059f 441
5d7836c4
JS		 442 long position = 0;
443 wxPoint logicalPt = event.GetLogicalPosition(dc);
444 int hit = GetBuffer().HitTest(dc, logicalPt, position);
88bee7e6 445
d2d0adc7 446 // See if we need to change the cursor
88bee7e6 447
d2d0adc7 448 {
efb2c52f 449 if (hit != wxRICHTEXT_HITTEST_NONE && !(hit & wxRICHTEXT_HITTEST_OUTSIDE))
d2d0adc7
JS		 450 {
451 wxTextAttrEx attr;
452 if (GetStyle(position, attr))
453 {
454 if (attr.HasFlag(wxTEXT_ATTR_URL))
455 {
e4ef49c7 456 SetCursor(m_urlCursor);
d2d0adc7
JS		 457 }
458 else if (!attr.HasFlag(wxTEXT_ATTR_URL))
459 {
e4ef49c7 460 SetCursor(m_textCursor);
d2d0adc7
JS		 461 }
462 }
463 }
f262b25c
JS		 464 else
465 SetCursor(m_textCursor);
d2d0adc7
JS		 466 }
467
468 if (!event.Dragging())
469 {
470 event.Skip();
471 return;
472 }
5d7836c4
JS		 473
474 if (m_dragging && hit != wxRICHTEXT_HITTEST_NONE)
475 {
476 // TODO: test closeness
477
478 bool caretAtLineStart = false;
479
480 if (hit & wxRICHTEXT_HITTEST_BEFORE)
481 {
482 // If we're at the start of a line (but not first in para)
483 // then we should keep the caret showing at the start of the line
484 // by showing the m_caretAtLineStart flag.
485 wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(position);
486 wxRichTextLine* line = GetBuffer().GetLineAtPosition(position);
487
1e967276 488 if (line && para && line->GetAbsoluteRange().GetStart() == position && para->GetRange().GetStart() != position)
5d7836c4
JS		 489 caretAtLineStart = true;
490 position --;
491 }
492
493 if (m_caretPosition != position)
494 {
495 bool extendSel = ExtendSelection(m_caretPosition, position, wxRICHTEXT_SHIFT_DOWN);
7fe8059f 496
5d7836c4
JS		 497 MoveCaret(position, caretAtLineStart);
498 SetDefaultStyleToCursorStyle();
7fe8059f 499
5d7836c4 500 if (extendSel)
76bcd815 501 Refresh(false);
5d7836c4
JS		 502 }
503 }
504}
505
506/// Right-click
db6634e0 507void wxRichTextCtrl::OnRightClick(wxMouseEvent& WXUNUSED(event))
5d7836c4
JS		 508{
509 SetFocus();
db6634e0
JS		 510
511 wxRichTextEvent cmdEvent(
512 wxEVT_COMMAND_RICHTEXT_RIGHT_CLICK,
513 GetId());
514 cmdEvent.SetEventObject(this);
515 cmdEvent.SetPosition(m_caretPosition+1);
516
517 GetEventHandler()->ProcessEvent(cmdEvent);
5d7836c4
JS		 518}
519
520/// Left-double-click
db6634e0 521void wxRichTextCtrl::OnLeftDClick(wxMouseEvent& WXUNUSED(event))
5d7836c4 522{
db6634e0
JS		 523 wxRichTextEvent cmdEvent(
524 wxEVT_COMMAND_RICHTEXT_LEFT_DCLICK,
525 GetId());
526 cmdEvent.SetEventObject(this);
527 cmdEvent.SetPosition(m_caretPosition+1);
528
529 if (!GetEventHandler()->ProcessEvent(cmdEvent))
530 {
531 SelectWord(GetCaretPosition()+1);
532 }
5d7836c4
JS		 533}
534
535/// Middle-click
536void wxRichTextCtrl::OnMiddleClick(wxMouseEvent& event)
537{
db6634e0
JS		 538 wxRichTextEvent cmdEvent(
539 wxEVT_COMMAND_RICHTEXT_MIDDLE_CLICK,
540 GetId());
541 cmdEvent.SetEventObject(this);
542 cmdEvent.SetPosition(m_caretPosition+1);
543
544 if (!GetEventHandler()->ProcessEvent(cmdEvent))
545 event.Skip();
5d7836c4
JS		 546}
547
548/// Key press
549void wxRichTextCtrl::OnChar(wxKeyEvent& event)
550{
551 int flags = 0;
3e3a754f 552 if (event.CmdDown())
5d7836c4
JS		 553 flags |= wxRICHTEXT_CTRL_DOWN;
554 if (event.ShiftDown())
555 flags |= wxRICHTEXT_SHIFT_DOWN;
556 if (event.AltDown())
557 flags |= wxRICHTEXT_ALT_DOWN;
558
559 if (event.GetKeyCode() == WXK_LEFT ||
560 event.GetKeyCode() == WXK_RIGHT ||
561 event.GetKeyCode() == WXK_UP ||
562 event.GetKeyCode() == WXK_DOWN ||
563 event.GetKeyCode() == WXK_HOME ||
564 event.GetKeyCode() == WXK_PAGEUP ||
565 event.GetKeyCode() == WXK_PAGEDOWN ||
3e3a754f
JS		 566 event.GetKeyCode() == WXK_END ||
567
568 event.GetKeyCode() == WXK_NUMPAD_LEFT ||
569 event.GetKeyCode() == WXK_NUMPAD_RIGHT ||
570 event.GetKeyCode() == WXK_NUMPAD_UP ||
571 event.GetKeyCode() == WXK_NUMPAD_DOWN ||
572 event.GetKeyCode() == WXK_NUMPAD_HOME ||
573 event.GetKeyCode() == WXK_NUMPAD_PAGEUP ||
574 event.GetKeyCode() == WXK_NUMPAD_PAGEDOWN ||
575 event.GetKeyCode() == WXK_NUMPAD_END)
5d7836c4 576 {
0bab774b 577 KeyboardNavigate(event.GetKeyCode(), flags);
99257cbe 578 return;
5d7836c4 579 }
99257cbe
VZ		 580
581 // all the other keys modify the controls contents which shouldn't be
582 // possible if we're read-only
583 if ( !IsEditable() )
584 {
585 event.Skip();
586 return;
587 }
588
589 if (event.GetKeyCode() == WXK_RETURN)
5d7836c4
JS		 590 {
591 BeginBatchUndo(_("Insert Text"));
592
593 long newPos = m_caretPosition;
594
595 DeleteSelectedContent(& newPos);
596
ff76711f
JS		 597 if (event.ShiftDown())
598 {
599 wxString text;
600 text = wxRichTextLineBreakChar;
601 GetBuffer().InsertTextWithUndo(newPos+1, text, this);
602 }
603 else
604 GetBuffer().InsertNewlineWithUndo(newPos+1, this, wxRICHTEXT_INSERT_WITH_PREVIOUS_PARAGRAPH_STYLE);
605
d2d0adc7
JS		 606 EndBatchUndo();
607 SetDefaultStyleToCursorStyle();
608
609 ScrollIntoView(m_caretPosition, WXK_RIGHT);
5d7836c4
JS		 610
611 wxRichTextEvent cmdEvent(
612 wxEVT_COMMAND_RICHTEXT_RETURN,
613 GetId());
614 cmdEvent.SetEventObject(this);
615 cmdEvent.SetFlags(flags);
5912d19e
JS		 616 cmdEvent.SetPosition(newPos+1);
617
d2d0adc7
JS		 618 if (!GetEventHandler()->ProcessEvent(cmdEvent))
619 {
620 // Generate conventional event
621 wxCommandEvent textEvent(wxEVT_COMMAND_TEXT_ENTER, GetId());
622 InitCommandEvent(textEvent);
88bee7e6 623
d2d0adc7
JS		 624 GetEventHandler()->ProcessEvent(textEvent);
625 }
621ae374 626 Update();
5d7836c4
JS		 627 }
628 else if (event.GetKeyCode() == WXK_BACK)
629 {
630 BeginBatchUndo(_("Delete Text"));
88bee7e6 631
5d7836c4
JS		 632 // Submit range in character positions, which are greater than caret positions,
633 // so subtract 1 for deleted character and add 1 for conversion to character position.
634 if (m_caretPosition > -1 && !HasSelection())
635 {
f52eff54 636 GetBuffer().DeleteRangeWithUndo(wxRichTextRange(m_caretPosition, m_caretPosition), this);
5d7836c4
JS		 637 }
638 else
639 DeleteSelectedContent();
640
641 EndBatchUndo();
642
5d7836c4
JS		 643 if (GetLastPosition() == -1)
644 {
645 GetBuffer().Reset();
646
647 m_caretPosition = -1;
648 PositionCaret();
649 SetDefaultStyleToCursorStyle();
650 }
651
f9ed2d16 652 ScrollIntoView(m_caretPosition, WXK_LEFT);
5912d19e
JS		 653
654 wxRichTextEvent cmdEvent(
655 wxEVT_COMMAND_RICHTEXT_DELETE,
656 GetId());
657 cmdEvent.SetEventObject(this);
658 cmdEvent.SetFlags(flags);
659 cmdEvent.SetPosition(m_caretPosition+1);
660 GetEventHandler()->ProcessEvent(cmdEvent);
661
621ae374 662 Update();
5d7836c4
JS		 663 }
664 else if (event.GetKeyCode() == WXK_DELETE)
665 {
666 BeginBatchUndo(_("Delete Text"));
667
668 // Submit range in character positions, which are greater than caret positions,
669 if (m_caretPosition < GetBuffer().GetRange().GetEnd()+1 && !HasSelection())
670 {
f52eff54 671 GetBuffer().DeleteRangeWithUndo(wxRichTextRange(m_caretPosition+1, m_caretPosition+1), this);
5d7836c4
JS		 672 }
673 else
674 DeleteSelectedContent();
675
676 EndBatchUndo();
677
5d7836c4
JS		 678 if (GetLastPosition() == -1)
679 {
680 GetBuffer().Reset();
681
682 m_caretPosition = -1;
683 PositionCaret();
684 SetDefaultStyleToCursorStyle();
685 }
5912d19e
JS		 686
687 wxRichTextEvent cmdEvent(
688 wxEVT_COMMAND_RICHTEXT_DELETE,
689 GetId());
690 cmdEvent.SetEventObject(this);
691 cmdEvent.SetFlags(flags);
692 cmdEvent.SetPosition(m_caretPosition+1);
693 GetEventHandler()->ProcessEvent(cmdEvent);
694
621ae374 695 Update();
5d7836c4
JS		 696 }
697 else
698 {
3e3a754f
JS		 699 long keycode = event.GetKeyCode();
700 switch ( keycode )
701 {
702 case WXK_ESCAPE:
3e3a754f
JS		 703 case WXK_DELETE:
704 case WXK_START:
705 case WXK_LBUTTON:
706 case WXK_RBUTTON:
707 case WXK_CANCEL:
708 case WXK_MBUTTON:
709 case WXK_CLEAR:
710 case WXK_SHIFT:
711 case WXK_ALT:
712 case WXK_CONTROL:
713 case WXK_MENU:
714 case WXK_PAUSE:
715 case WXK_CAPITAL:
716 case WXK_END:
717 case WXK_HOME:
718 case WXK_LEFT:
719 case WXK_UP:
720 case WXK_RIGHT:
721 case WXK_DOWN:
722 case WXK_SELECT:
723 case WXK_PRINT:
724 case WXK_EXECUTE:
725 case WXK_SNAPSHOT:
726 case WXK_INSERT:
727 case WXK_HELP:
728 case WXK_NUMPAD0:
729 case WXK_NUMPAD1:
730 case WXK_NUMPAD2:
731 case WXK_NUMPAD3:
732 case WXK_NUMPAD4:
733 case WXK_NUMPAD5:
734 case WXK_NUMPAD6:
735 case WXK_NUMPAD7:
736 case WXK_NUMPAD8:
737 case WXK_NUMPAD9:
738 case WXK_MULTIPLY:
739 case WXK_ADD:
740 case WXK_SEPARATOR:
741 case WXK_SUBTRACT:
742 case WXK_DECIMAL:
743 case WXK_DIVIDE:
744 case WXK_F1:
745 case WXK_F2:
746 case WXK_F3:
747 case WXK_F4:
748 case WXK_F5:
749 case WXK_F6:
750 case WXK_F7:
751 case WXK_F8:
752 case WXK_F9:
753 case WXK_F10:
754 case WXK_F11:
755 case WXK_F12:
756 case WXK_F13:
757 case WXK_F14:
758 case WXK_F15:
759 case WXK_F16:
760 case WXK_F17:
761 case WXK_F18:
762 case WXK_F19:
763 case WXK_F20:
764 case WXK_F21:
765 case WXK_F22:
766 case WXK_F23:
767 case WXK_F24:
768 case WXK_NUMLOCK:
769 case WXK_SCROLL:
770 case WXK_PAGEUP:
771 case WXK_PAGEDOWN:
772 case WXK_NUMPAD_SPACE:
773 case WXK_NUMPAD_TAB:
774 case WXK_NUMPAD_ENTER:
775 case WXK_NUMPAD_F1:
776 case WXK_NUMPAD_F2:
777 case WXK_NUMPAD_F3:
778 case WXK_NUMPAD_F4:
779 case WXK_NUMPAD_HOME:
780 case WXK_NUMPAD_LEFT:
781 case WXK_NUMPAD_UP:
782 case WXK_NUMPAD_RIGHT:
783 case WXK_NUMPAD_DOWN:
784 case WXK_NUMPAD_PAGEUP:
785 case WXK_NUMPAD_PAGEDOWN:
786 case WXK_NUMPAD_END:
787 case WXK_NUMPAD_BEGIN:
788 case WXK_NUMPAD_INSERT:
789 case WXK_NUMPAD_DELETE:
790 case WXK_NUMPAD_EQUAL:
791 case WXK_NUMPAD_MULTIPLY:
792 case WXK_NUMPAD_ADD:
793 case WXK_NUMPAD_SEPARATOR:
794 case WXK_NUMPAD_SUBTRACT:
795 case WXK_NUMPAD_DECIMAL:
88bee7e6 796 case WXK_WINDOWS_LEFT:
3e3a754f
JS		 797 {
798 event.Skip();
799 return;
800 }
1807a1f3 801
3e3a754f
JS		 802 default:
803 {
804 if (event.CmdDown() || event.AltDown())
805 {
806 event.Skip();
807 return;
808 }
41a85215 809
5912d19e
JS		 810 wxRichTextEvent cmdEvent(
811 wxEVT_COMMAND_RICHTEXT_CHARACTER,
812 GetId());
813 cmdEvent.SetEventObject(this);
814 cmdEvent.SetFlags(flags);
0b14a7bd
JS		 815#if wxUSE_UNICODE
816 cmdEvent.SetCharacter(event.GetUnicodeKey());
817#else
5912d19e 818 cmdEvent.SetCharacter((wxChar) keycode);
0b14a7bd 819#endif
5912d19e 820 cmdEvent.SetPosition(m_caretPosition+1);
88bee7e6 821
dadd4f55
JS		 822 if (keycode == wxT('\t'))
823 {
824 // See if we need to promote or demote the selection or paragraph at the cursor
825 // position, instead of inserting a tab.
826 long pos = GetAdjustedCaretPosition(GetCaretPosition());
827 wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(pos);
828 if (para && para->GetRange().GetStart() == pos && para->GetAttributes().HasListStyleName())
829 {
830 wxRichTextRange range;
831 if (HasSelection())
832 range = GetSelectionRange();
833 else
834 range = para->GetRange().FromInternal();
41a85215 835
dadd4f55
JS		 836 int promoteBy = event.ShiftDown() ? 1 : -1;
837
838 PromoteList(promoteBy, range, NULL);
d2d0adc7 839
5912d19e
JS		 840 GetEventHandler()->ProcessEvent(cmdEvent);
841
dadd4f55
JS		 842 return;
843 }
844 }
5d7836c4 845
3e3a754f 846 BeginBatchUndo(_("Insert Text"));
5d7836c4 847
3e3a754f
JS		 848 long newPos = m_caretPosition;
849 DeleteSelectedContent(& newPos);
5d7836c4 850
0b14a7bd
JS		 851#if wxUSE_UNICODE
852 wxString str = event.GetUnicodeKey();
853#else
3e3a754f 854 wxString str = (wxChar) event.GetKeyCode();
0b14a7bd 855#endif
523d2f14 856 GetBuffer().InsertTextWithUndo(newPos+1, str, this, 0);
5d7836c4 857
3e3a754f
JS		 858 EndBatchUndo();
859
860 SetDefaultStyleToCursorStyle();
861 ScrollIntoView(m_caretPosition, WXK_RIGHT);
88bee7e6 862
5912d19e
JS		 863 GetEventHandler()->ProcessEvent(cmdEvent);
864
621ae374 865 Update();
3e3a754f
JS		 866 }
867 }
5d7836c4 868 }
5d7836c4
JS		 869}
870
871/// Delete content if there is a selection, e.g. when pressing a key.
872bool wxRichTextCtrl::DeleteSelectedContent(long* newPos)
873{
874 if (HasSelection())
875 {
876 long pos = m_selectionRange.GetStart();
f52eff54 877 GetBuffer().DeleteRangeWithUndo(m_selectionRange, this);
5d7836c4
JS		 878 m_selectionRange.SetRange(-2, -2);
879
880 if (newPos)
881 *newPos = pos-1;
882 return true;
883 }
884 else
885 return false;
886}
887
888/// Keyboard navigation
889
890/*
891
892Left: left one character
893Right: right one character
894Up: up one line
895Down: down one line
896Ctrl-Left: left one word
897Ctrl-Right: right one word
898Ctrl-Up: previous paragraph start
899Ctrl-Down: next start of paragraph
900Home: start of line
901End: end of line
902Ctrl-Home: start of document
903Ctrl-End: end of document
904Page-Up: Up a screen
905Page-Down: Down a screen
906
907Maybe:
908
909Ctrl-Alt-PgUp: Start of window
910Ctrl-Alt-PgDn: End of window
911F8: Start selection mode
912Esc: End selection mode
913
914Adding Shift does the above but starts/extends selection.
915
916
917 */
918
0bab774b 919bool wxRichTextCtrl::KeyboardNavigate(int keyCode, int flags)
5d7836c4
JS		 920{
921 bool success = false;
5d7836c4 922
3e3a754f 923 if (keyCode == WXK_RIGHT || keyCode == WXK_NUMPAD_RIGHT)
5d7836c4
JS		 924 {
925 if (flags & wxRICHTEXT_CTRL_DOWN)
926 success = WordRight(1, flags);
927 else
928 success = MoveRight(1, flags);
929 }
3e3a754f 930 else if (keyCode == WXK_LEFT || keyCode == WXK_NUMPAD_LEFT)
5d7836c4
JS		 931 {
932 if (flags & wxRICHTEXT_CTRL_DOWN)
933 success = WordLeft(1, flags);
934 else
935 success = MoveLeft(1, flags);
936 }
3e3a754f 937 else if (keyCode == WXK_UP || keyCode == WXK_NUMPAD_UP)
5d7836c4
JS		 938 {
939 if (flags & wxRICHTEXT_CTRL_DOWN)
940 success = MoveToParagraphStart(flags);
941 else
942 success = MoveUp(1, flags);
943 }
3e3a754f 944 else if (keyCode == WXK_DOWN || keyCode == WXK_NUMPAD_DOWN)
5d7836c4
JS		 945 {
946 if (flags & wxRICHTEXT_CTRL_DOWN)
947 success = MoveToParagraphEnd(flags);
948 else
949 success = MoveDown(1, flags);
950 }
3e3a754f 951 else if (keyCode == WXK_PAGEUP || keyCode == WXK_NUMPAD_PAGEUP)
5d7836c4
JS		 952 {
953 success = PageUp(1, flags);
954 }
3e3a754f 955 else if (keyCode == WXK_PAGEDOWN || keyCode == WXK_NUMPAD_PAGEDOWN)
5d7836c4
JS		 956 {
957 success = PageDown(1, flags);
958 }
3e3a754f 959 else if (keyCode == WXK_HOME || keyCode == WXK_NUMPAD_HOME)
5d7836c4
JS		 960 {
961 if (flags & wxRICHTEXT_CTRL_DOWN)
962 success = MoveHome(flags);
963 else
964 success = MoveToLineStart(flags);
965 }
3e3a754f 966 else if (keyCode == WXK_END || keyCode == WXK_NUMPAD_END)
5d7836c4
JS		 967 {
968 if (flags & wxRICHTEXT_CTRL_DOWN)
969 success = MoveEnd(flags);
970 else
971 success = MoveToLineEnd(flags);
972 }
973
974 if (success)
975 {
976 ScrollIntoView(m_caretPosition, keyCode);
977 SetDefaultStyleToCursorStyle();
978 }
979
5d7836c4
JS		 980 return success;
981}
982
983/// Extend the selection. Selections are in caret positions.
984bool wxRichTextCtrl::ExtendSelection(long oldPos, long newPos, int flags)
985{
986 if (flags & wxRICHTEXT_SHIFT_DOWN)
987 {
988 // If not currently selecting, start selecting
989 if (m_selectionRange.GetStart() == -2)
990 {
991 m_selectionAnchor = oldPos;
992
993 if (oldPos > newPos)
994 m_selectionRange.SetRange(newPos+1, oldPos);
995 else
996 m_selectionRange.SetRange(oldPos+1, newPos);
997 }
998 else
999 {
1000 // Always ensure that the selection range start is greater than
1001 // the end.
1002 if (newPos > m_selectionAnchor)
1003 m_selectionRange.SetRange(m_selectionAnchor+1, newPos);
1004 else
1005 m_selectionRange.SetRange(newPos+1, m_selectionAnchor);
1006 }
1007
1008 if (m_selectionRange.GetStart() > m_selectionRange.GetEnd())
1009 {
1010 wxLogDebug(wxT("Strange selection range"));
1011 }
7fe8059f 1012
5d7836c4
JS		 1013 return true;
1014 }
1015 else
1016 return false;
1017}
1018
1019/// Scroll into view, returning true if we scrolled.
1020/// This takes a _caret_ position.
1021bool wxRichTextCtrl::ScrollIntoView(long position, int keyCode)
1022{
1023 wxRichTextLine* line = GetVisibleLineForCaretPosition(position);
1024
1025 if (!line)
1026 return false;
1027
1028 int ppuX, ppuY;
1029 GetScrollPixelsPerUnit(& ppuX, & ppuY);
1030
3956d02a
JS		 1031 int startXUnits, startYUnits;
1032 GetViewStart(& startXUnits, & startYUnits);
1033 int startY = startYUnits * ppuY;
5d7836c4 1034
8d7eaf91 1035 int sx = 0, sy = 0;
5d7836c4 1036 GetVirtualSize(& sx, & sy);
3956d02a
JS		 1037 int sxUnits = 0;
1038 int syUnits = 0;
5d7836c4 1039 if (ppuY != 0)
3956d02a 1040 syUnits = sy/ppuY;
5d7836c4
JS		 1041
1042 wxRect rect = line->GetRect();
1043
1044 bool scrolled = false;
1045
1046 wxSize clientSize = GetClientSize();
1047
1048 // Going down
3e3a754f
JS		 1049 if (keyCode == WXK_DOWN || keyCode == WXK_NUMPAD_DOWN ||
1050 keyCode == WXK_RIGHT || keyCode == WXK_NUMPAD_DOWN ||
1051 keyCode == WXK_END || keyCode == WXK_NUMPAD_END ||
1052 keyCode == WXK_PAGEDOWN || keyCode == WXK_NUMPAD_PAGEDOWN)
5d7836c4
JS		 1053 {
1054 if ((rect.y + rect.height) > (clientSize.y + startY))
1055 {
1056 // Make it scroll so this item is at the bottom
1057 // of the window
1058 int y = rect.y - (clientSize.y - rect.height);
3956d02a 1059 int yUnits = (int) (0.5 + ((float) y)/(float) ppuY);
c59f6793 1060
3956d02a
JS		 1061 // If we're still off the screen, scroll another line down
1062 if ((rect.y + rect.height) > (clientSize.y + (yUnits*ppuY)))
1063 yUnits ++;
1064
1065 if (startYUnits != yUnits)
c59f6793 1066 {
3956d02a 1067 SetScrollbars(ppuX, ppuY, sxUnits, syUnits, 0, yUnits);
c59f6793
JS		 1068 scrolled = true;
1069 }
5d7836c4
JS		 1070 }
1071 else if (rect.y < startY)
1072 {
1073 // Make it scroll so this item is at the top
1074 // of the window
1075 int y = rect.y ;
3956d02a 1076 int yUnits = (int) (0.5 + ((float) y)/(float) ppuY);
c59f6793 1077
3956d02a 1078 if (startYUnits != yUnits)
c59f6793 1079 {
3956d02a 1080 SetScrollbars(ppuX, ppuY, sxUnits, syUnits, 0, yUnits);
c59f6793
JS		 1081 scrolled = true;
1082 }
5d7836c4 1083 }
5d7836c4
JS		 1084 }
1085 // Going up
3e3a754f
JS		 1086 else if (keyCode == WXK_UP || keyCode == WXK_NUMPAD_UP ||
1087 keyCode == WXK_LEFT || keyCode == WXK_NUMPAD_LEFT ||
1088 keyCode == WXK_HOME || keyCode == WXK_NUMPAD_HOME ||
1089 keyCode == WXK_PAGEUP || keyCode == WXK_NUMPAD_PAGEUP )
5d7836c4
JS		 1090 {
1091 if (rect.y < startY)
1092 {
1093 // Make it scroll so this item is at the top
1094 // of the window
1095 int y = rect.y ;
3956d02a 1096 int yUnits = (int) (0.5 + ((float) y)/(float) ppuY);
c59f6793 1097
3956d02a 1098 if (startYUnits != yUnits)
c59f6793 1099 {
3956d02a 1100 SetScrollbars(ppuX, ppuY, sxUnits, syUnits, 0, yUnits);
c59f6793
JS		 1101 scrolled = true;
1102 }
5d7836c4
JS		 1103 }
1104 else if ((rect.y + rect.height) > (clientSize.y + startY))
1105 {
1106 // Make it scroll so this item is at the bottom
1107 // of the window
1108 int y = rect.y - (clientSize.y - rect.height);
3956d02a
JS		 1109 int yUnits = (int) (0.5 + ((float) y)/(float) ppuY);
1110
1111 // If we're still off the screen, scroll another line down
1112 if ((rect.y + rect.height) > (clientSize.y + (yUnits*ppuY)))
1113 yUnits ++;
c59f6793 1114
3956d02a 1115 if (startYUnits != yUnits)
c59f6793 1116 {
3956d02a 1117 SetScrollbars(ppuX, ppuY, sxUnits, syUnits, 0, yUnits);
c59f6793
JS		 1118 scrolled = true;
1119 }
5d7836c4 1120 }
5d7836c4
JS		 1121 }
1122 PositionCaret();
1123
1124 return scrolled;
1125}
1126
1127/// Is the given position visible on the screen?
1128bool wxRichTextCtrl::IsPositionVisible(long pos) const
1129{
1130 wxRichTextLine* line = GetVisibleLineForCaretPosition(pos-1);
1131
1132 if (!line)
1133 return false;
1134
1135 int ppuX, ppuY;
1136 GetScrollPixelsPerUnit(& ppuX, & ppuY);
1137
1138 int startX, startY;
1139 GetViewStart(& startX, & startY);
1140 startX = 0;
1141 startY = startY * ppuY;
1142
8d7eaf91 1143 int sx = 0, sy = 0;
5d7836c4
JS		 1144 GetVirtualSize(& sx, & sy);
1145 sx = 0;
1146 if (ppuY != 0)
1147 sy = sy/ppuY;
1148
1149 wxRect rect = line->GetRect();
1150
1151 wxSize clientSize = GetClientSize();
1152
1153 return !(((rect.y + rect.height) > (clientSize.y + startY)) || rect.y < startY);
1154}
1155
1156void wxRichTextCtrl::SetCaretPosition(long position, bool showAtLineStart)
1157{
1158 m_caretPosition = position;
1159 m_caretAtLineStart = showAtLineStart;
1160}
1161
1162/// Move caret one visual step forward: this may mean setting a flag
1163/// and keeping the same position if we're going from the end of one line
1164/// to the start of the next, which may be the exact same caret position.
1165void wxRichTextCtrl::MoveCaretForward(long oldPosition)
1166{
1167 wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(oldPosition);
1168
1169 // Only do the check if we're not at the end of the paragraph (where things work OK
1170 // anyway)
1171 if (para && (oldPosition != para->GetRange().GetEnd() - 1))
1172 {
1173 wxRichTextLine* line = GetBuffer().GetLineAtPosition(oldPosition);
1174
1175 if (line)
1176 {
1e967276
JS		 1177 wxRichTextRange lineRange = line->GetAbsoluteRange();
1178
5d7836c4
JS		 1179 // We're at the end of a line. See whether we need to
1180 // stay at the same actual caret position but change visual
1181 // position, or not.
1e967276 1182 if (oldPosition == lineRange.GetEnd())
5d7836c4
JS		 1183 {
1184 if (m_caretAtLineStart)
1185 {
1186 // We're already at the start of the line, so actually move on now.
1187 m_caretPosition = oldPosition + 1;
1188 m_caretAtLineStart = false;
1189 }
1190 else
1191 {
1192 // We're showing at the end of the line, so keep to
1193 // the same position but indicate that we're to show
1194 // at the start of the next line.
1195 m_caretPosition = oldPosition;
7fe8059f 1196 m_caretAtLineStart = true;
5d7836c4
JS		 1197 }
1198 SetDefaultStyleToCursorStyle();
1199 return;
1200 }
1201 }
1202 }
1203 m_caretPosition ++;
1204 SetDefaultStyleToCursorStyle();
1205}
1206
1207/// Move caret one visual step backward: this may mean setting a flag
1208/// and keeping the same position if we're going from the end of one line
1209/// to the start of the next, which may be the exact same caret position.
1210void wxRichTextCtrl::MoveCaretBack(long oldPosition)
1211{
1212 wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(oldPosition);
1213
1214 // Only do the check if we're not at the start of the paragraph (where things work OK
1215 // anyway)
1216 if (para && (oldPosition != para->GetRange().GetStart()))
1217 {
1218 wxRichTextLine* line = GetBuffer().GetLineAtPosition(oldPosition);
1219
1220 if (line)
1221 {
1e967276
JS		 1222 wxRichTextRange lineRange = line->GetAbsoluteRange();
1223
5d7836c4
JS		 1224 // We're at the start of a line. See whether we need to
1225 // stay at the same actual caret position but change visual
1226 // position, or not.
1e967276 1227 if (oldPosition == lineRange.GetStart())
5d7836c4
JS		 1228 {
1229 m_caretPosition = oldPosition-1;
1230 m_caretAtLineStart = true;
1231 return;
1232 }
1e967276 1233 else if (oldPosition == lineRange.GetEnd())
5d7836c4
JS		 1234 {
1235 if (m_caretAtLineStart)
1236 {
1237 // We're at the start of the line, so keep the same caret position
1238 // but clear the start-of-line flag.
1239 m_caretPosition = oldPosition;
1240 m_caretAtLineStart = false;
1241 }
1242 else
1243 {
1244 // We're showing at the end of the line, so go back
1245 // to the previous character position.
1246 m_caretPosition = oldPosition - 1;
1247 }
1248 SetDefaultStyleToCursorStyle();
1249 return;
1250 }
1251 }
1252 }
1253 m_caretPosition --;
1254 SetDefaultStyleToCursorStyle();
1255}
1256
1257/// Move right
1258bool wxRichTextCtrl::MoveRight(int noPositions, int flags)
1259{
1260 long endPos = GetBuffer().GetRange().GetEnd();
1261
1262 if (m_caretPosition + noPositions < endPos)
1263 {
1264 long oldPos = m_caretPosition;
1265 long newPos = m_caretPosition + noPositions;
1266
1267 bool extendSel = ExtendSelection(m_caretPosition, newPos, flags);
1268 if (!extendSel)
1269 SelectNone();
1270
1271 // Determine by looking at oldPos and m_caretPosition whether
1272 // we moved from the end of a line to the start of the next line, in which case
1273 // we want to adjust the caret position such that it is positioned at the
1274 // start of the next line, rather than jumping past the first character of the
1275 // line.
1276 if (noPositions == 1 && !extendSel)
1277 MoveCaretForward(oldPos);
1278 else
1279 SetCaretPosition(newPos);
1280
1281 PositionCaret();
1282 SetDefaultStyleToCursorStyle();
1283
c59f6793 1284 if (extendSel)
76bcd815 1285 Refresh(false);
5d7836c4
JS		 1286 return true;
1287 }
1288 else
7fe8059f 1289 return false;
5d7836c4
JS		 1290}
1291
1292/// Move left
1293bool wxRichTextCtrl::MoveLeft(int noPositions, int flags)
1294{
1295 long startPos = -1;
1296
1297 if (m_caretPosition > startPos - noPositions + 1)
1298 {
1299 long oldPos = m_caretPosition;
1300 long newPos = m_caretPosition - noPositions;
1301 bool extendSel = ExtendSelection(m_caretPosition, newPos, flags);
1302 if (!extendSel)
1303 SelectNone();
1304
1305 if (noPositions == 1 && !extendSel)
1306 MoveCaretBack(oldPos);
1307 else
1308 SetCaretPosition(newPos);
1309
1310 PositionCaret();
1311 SetDefaultStyleToCursorStyle();
1312
c59f6793 1313 if (extendSel)
76bcd815 1314 Refresh(false);
5d7836c4
JS		 1315 return true;
1316 }
1317 else
7fe8059f 1318 return false;
5d7836c4
JS		 1319}
1320
1321/// Move up
1322bool wxRichTextCtrl::MoveUp(int noLines, int flags)
1323{
1324 return MoveDown(- noLines, flags);
1325}
1326
1327/// Move up
1328bool wxRichTextCtrl::MoveDown(int noLines, int flags)
1329{
c59f6793
JS		 1330 if (!GetCaret())
1331 return false;
1332
5d7836c4
JS		 1333 long lineNumber = GetBuffer().GetVisibleLineNumber(m_caretPosition, true, m_caretAtLineStart);
1334 wxPoint pt = GetCaret()->GetPosition();
1335 long newLine = lineNumber + noLines;
1336
1337 if (lineNumber != -1)
1338 {
1339 if (noLines > 0)
1340 {
1341 long lastLine = GetBuffer().GetVisibleLineNumber(GetBuffer().GetRange().GetEnd());
1342
1343 if (newLine > lastLine)
1344 return false;
1345 }
1346 else
1347 {
1348 if (newLine < 0)
1349 return false;
1350 }
1351 }
1352
1353 wxRichTextLine* lineObj = GetBuffer().GetLineForVisibleLineNumber(newLine);
1354 if (lineObj)
7fe8059f
WS		 1355 {
1356 pt.y = lineObj->GetAbsolutePosition().y + 2;
5d7836c4
JS		 1357 }
1358 else
1359 return false;
1360
1361 long newPos = 0;
1362 wxClientDC dc(this);
1363 PrepareDC(dc);
1364 dc.SetFont(GetFont());
7fe8059f 1365
5d7836c4 1366 int hitTest = GetBuffer().HitTest(dc, pt, newPos);
7fe8059f 1367
5d7836c4
JS		 1368 if (hitTest != wxRICHTEXT_HITTEST_NONE)
1369 {
1370 // If end of previous line, and hitTest is wxRICHTEXT_HITTEST_BEFORE,
1371 // we want to be at the end of the last line but with m_caretAtLineStart set to true,
1372 // so we view the caret at the start of the line.
1373 bool caretLineStart = false;
f262b25c 1374 if (hitTest & wxRICHTEXT_HITTEST_BEFORE)
5d7836c4
JS		 1375 {
1376 wxRichTextLine* thisLine = GetBuffer().GetLineAtPosition(newPos-1);
1e967276
JS		 1377 wxRichTextRange lineRange;
1378 if (thisLine)
1379 lineRange = thisLine->GetAbsoluteRange();
1380
1381 if (thisLine && (newPos-1) == lineRange.GetEnd())
5d7836c4 1382 {
1e967276
JS		 1383 newPos --;
1384 caretLineStart = true;
5d7836c4
JS		 1385 }
1386 else
1387 {
1388 wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(newPos);
1389 if (para && para->GetRange().GetStart() == newPos)
1390 newPos --;
1391 }
1392 }
1393
1394 long newSelEnd = newPos;
1395
c59f6793
JS		 1396 bool extendSel = ExtendSelection(m_caretPosition, newSelEnd, flags);
1397 if (!extendSel)
5d7836c4
JS		 1398 SelectNone();
1399
1400 SetCaretPosition(newPos, caretLineStart);
1401 PositionCaret();
1402 SetDefaultStyleToCursorStyle();
1403
c59f6793 1404 if (extendSel)
76bcd815 1405 Refresh(false);
5d7836c4
JS		 1406 return true;
1407 }
41e155b4
WS		 1408
1409 return false;
5d7836c4
JS		 1410}
1411
1412/// Move to the end of the paragraph
1413bool wxRichTextCtrl::MoveToParagraphEnd(int flags)
1414{
1415 wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(m_caretPosition, true);
1416 if (para)
1417 {
1418 long newPos = para->GetRange().GetEnd() - 1;
c59f6793
JS		 1419 bool extendSel = ExtendSelection(m_caretPosition, newPos, flags);
1420 if (!extendSel)
5d7836c4
JS		 1421 SelectNone();
1422
1423 SetCaretPosition(newPos);
1424 PositionCaret();
1425 SetDefaultStyleToCursorStyle();
1426
c59f6793 1427 if (extendSel)
76bcd815 1428 Refresh(false);
5d7836c4
JS		 1429 return true;
1430 }
1431
1432 return false;
1433}
1434
1435/// Move to the start of the paragraph
1436bool wxRichTextCtrl::MoveToParagraphStart(int flags)
1437{
1438 wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(m_caretPosition, true);
1439 if (para)
1440 {
1441 long newPos = para->GetRange().GetStart() - 1;
c59f6793
JS		 1442 bool extendSel = ExtendSelection(m_caretPosition, newPos, flags);
1443 if (!extendSel)
5d7836c4
JS		 1444 SelectNone();
1445
1446 SetCaretPosition(newPos);
1447 PositionCaret();
1448 SetDefaultStyleToCursorStyle();
1449
c59f6793 1450 if (extendSel)
76bcd815 1451 Refresh(false);
5d7836c4
JS		 1452 return true;
1453 }
1454
1455 return false;
1456}
1457
1458/// Move to the end of the line
1459bool wxRichTextCtrl::MoveToLineEnd(int flags)
1460{
1461 wxRichTextLine* line = GetVisibleLineForCaretPosition(m_caretPosition);
1462
1463 if (line)
1464 {
1e967276
JS		 1465 wxRichTextRange lineRange = line->GetAbsoluteRange();
1466 long newPos = lineRange.GetEnd();
c59f6793
JS		 1467 bool extendSel = ExtendSelection(m_caretPosition, newPos, flags);
1468 if (!extendSel)
5d7836c4
JS		 1469 SelectNone();
1470
1471 SetCaretPosition(newPos);
1472 PositionCaret();
1473 SetDefaultStyleToCursorStyle();
1474
c59f6793 1475 if (extendSel)
76bcd815 1476 Refresh(false);
5d7836c4
JS		 1477 return true;
1478 }
1479
1480 return false;
1481}
1482
1483/// Move to the start of the line
1484bool wxRichTextCtrl::MoveToLineStart(int flags)
1485{
1486 wxRichTextLine* line = GetVisibleLineForCaretPosition(m_caretPosition);
1487 if (line)
1488 {
1e967276
JS		 1489 wxRichTextRange lineRange = line->GetAbsoluteRange();
1490 long newPos = lineRange.GetStart()-1;
5d7836c4 1491
c59f6793
JS		 1492 bool extendSel = ExtendSelection(m_caretPosition, newPos, flags);
1493 if (!extendSel)
5d7836c4
JS		 1494 SelectNone();
1495
1496 wxRichTextParagraph* para = GetBuffer().GetParagraphForLine(line);
1497
1e967276 1498 SetCaretPosition(newPos, para->GetRange().GetStart() != lineRange.GetStart());
5d7836c4
JS		 1499 PositionCaret();
1500 SetDefaultStyleToCursorStyle();
1501
c59f6793 1502 if (extendSel)
76bcd815 1503 Refresh(false);
5d7836c4
JS		 1504 return true;
1505 }
1506
1507 return false;
1508}
1509
1510/// Move to the start of the buffer
1511bool wxRichTextCtrl::MoveHome(int flags)
1512{
1513 if (m_caretPosition != -1)
1514 {
c59f6793
JS		 1515 bool extendSel = ExtendSelection(m_caretPosition, -1, flags);
1516 if (!extendSel)
5d7836c4
JS		 1517 SelectNone();
1518
1519 SetCaretPosition(-1);
1520 PositionCaret();
1521 SetDefaultStyleToCursorStyle();
1522
c59f6793 1523 if (extendSel)
76bcd815 1524 Refresh(false);
5d7836c4
JS		 1525 return true;
1526 }
1527 else
7fe8059f 1528 return false;
5d7836c4
JS		 1529}
1530
1531/// Move to the end of the buffer
1532bool wxRichTextCtrl::MoveEnd(int flags)
1533{
1534 long endPos = GetBuffer().GetRange().GetEnd()-1;
1535
1536 if (m_caretPosition != endPos)
1537 {
c59f6793
JS		 1538 bool extendSel = ExtendSelection(m_caretPosition, endPos, flags);
1539 if (!extendSel)
5d7836c4
JS		 1540 SelectNone();
1541
1542 SetCaretPosition(endPos);
1543 PositionCaret();
1544 SetDefaultStyleToCursorStyle();
1545
c59f6793 1546 if (extendSel)
76bcd815 1547 Refresh(false);
5d7836c4
JS		 1548 return true;
1549 }
1550 else
7fe8059f 1551 return false;
5d7836c4
JS		 1552}
1553
1554/// Move noPages pages up
1555bool wxRichTextCtrl::PageUp(int noPages, int flags)
1556{
1557 return PageDown(- noPages, flags);
1558}
1559
1560/// Move noPages pages down
1561bool wxRichTextCtrl::PageDown(int noPages, int flags)
1562{
1563 // Calculate which line occurs noPages * screen height further down.
1564 wxRichTextLine* line = GetVisibleLineForCaretPosition(m_caretPosition);
1565 if (line)
1566 {
1567 wxSize clientSize = GetClientSize();
1568 int newY = line->GetAbsolutePosition().y + noPages*clientSize.y;
1569
1570 wxRichTextLine* newLine = GetBuffer().GetLineAtYPosition(newY);
1571 if (newLine)
1572 {
1e967276
JS		 1573 wxRichTextRange lineRange = newLine->GetAbsoluteRange();
1574 long pos = lineRange.GetStart()-1;
5d7836c4
JS		 1575 if (pos != m_caretPosition)
1576 {
1577 wxRichTextParagraph* para = GetBuffer().GetParagraphForLine(newLine);
1578
c59f6793
JS		 1579 bool extendSel = ExtendSelection(m_caretPosition, pos, flags);
1580 if (!extendSel)
5d7836c4
JS		 1581 SelectNone();
1582
1e967276 1583 SetCaretPosition(pos, para->GetRange().GetStart() != lineRange.GetStart());
5d7836c4
JS		 1584 PositionCaret();
1585 SetDefaultStyleToCursorStyle();
1586
c59f6793 1587 if (extendSel)
76bcd815 1588 Refresh(false);
5d7836c4
JS		 1589 return true;
1590 }
1591 }
1592 }
1593
1594 return false;
1595}
1596
0871b343
JS		 1597static bool wxRichTextCtrlIsWhitespace(const wxString& str)
1598{
1599 return str == wxT(" ") || str == wxT("\t");
1600}
1601
5d7836c4
JS		 1602// Finds the caret position for the next word
1603long wxRichTextCtrl::FindNextWordPosition(int direction) const
7fe8059f 1604{
5d7836c4
JS		 1605 long endPos = GetBuffer().GetRange().GetEnd();
1606
1607 if (direction > 0)
1608 {
1609 long i = m_caretPosition+1+direction; // +1 for conversion to character pos
7fe8059f 1610
5d7836c4
JS		 1611 // First skip current text to space
1612 while (i < endPos && i > -1)
1613 {
1614 // i is in character, not caret positions
1615 wxString text = GetBuffer().GetTextForRange(wxRichTextRange(i, i));
0871b343
JS		 1616 wxRichTextLine* line = GetBuffer().GetLineAtPosition(i, false);
1617 if (line && (i == line->GetAbsoluteRange().GetEnd()))
1618 {
1619 break;
1620 }
1621 else if (!wxRichTextCtrlIsWhitespace(text) && !text.empty())
5d7836c4
JS		 1622 i += direction;
1623 else
1624 {
1625 break;
1626 }
1627 }
1628 while (i < endPos && i > -1)
1629 {
1630 // i is in character, not caret positions
1631 wxString text = GetBuffer().GetTextForRange(wxRichTextRange(i, i));
0871b343
JS		 1632 wxRichTextLine* line = GetBuffer().GetLineAtPosition(i, false);
1633 if (line && (i == line->GetAbsoluteRange().GetEnd()))
1634 return wxMax(-1, i);
1635
7fe8059f 1636 if (text.empty()) // End of paragraph, or maybe an image
5d7836c4 1637 return wxMax(-1, i - 1);
0871b343 1638 else if (wxRichTextCtrlIsWhitespace(text) || text.empty())
5d7836c4
JS		 1639 i += direction;
1640 else
1641 {
1642 // Convert to caret position
1643 return wxMax(-1, i - 1);
1644 }
1645 }
1646 if (i >= endPos)
1647 return endPos-1;
1648 return i-1;
1649 }
1650 else
1651 {
1652 long i = m_caretPosition;
1653
1654 // First skip white space
1655 while (i < endPos && i > -1)
1656 {
1657 // i is in character, not caret positions
1658 wxString text = GetBuffer().GetTextForRange(wxRichTextRange(i, i));
0871b343
JS		 1659 wxRichTextLine* line = GetBuffer().GetLineAtPosition(i, false);
1660
1661 if (text.empty() || (line && (i == line->GetAbsoluteRange().GetStart()))) // End of paragraph, or maybe an image
5d7836c4 1662 break;
0871b343 1663 else if (wxRichTextCtrlIsWhitespace(text) || text.empty())
5d7836c4
JS		 1664 i += direction;
1665 else
1666 break;
1667 }
1668 // Next skip current text to space
1669 while (i < endPos && i > -1)
1670 {
1671 // i is in character, not caret positions
1672 wxString text = GetBuffer().GetTextForRange(wxRichTextRange(i, i));
0871b343
JS		 1673 wxRichTextLine* line = GetBuffer().GetLineAtPosition(i, false);
1674 if (line && line->GetAbsoluteRange().GetStart() == i)
1675 return i-1;
1676
1677 if (!wxRichTextCtrlIsWhitespace(text) /* && !text.empty() */)
5d7836c4
JS		 1678 i += direction;
1679 else
1680 {
1681 return i;
5d7836c4
JS		 1682 }
1683 }
1684 if (i < -1)
1685 return -1;
1686 return i;
1687 }
1688}
1689
1690/// Move n words left
1691bool wxRichTextCtrl::WordLeft(int WXUNUSED(n), int flags)
1692{
1693 long pos = FindNextWordPosition(-1);
1694 if (pos != m_caretPosition)
1695 {
1696 wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(pos, true);
7fe8059f 1697
c59f6793
JS		 1698 bool extendSel = ExtendSelection(m_caretPosition, pos, flags);
1699 if (!extendSel)
5d7836c4 1700 SelectNone();
7fe8059f 1701
5d7836c4
JS		 1702 SetCaretPosition(pos, para->GetRange().GetStart() != pos);
1703 PositionCaret();
1704 SetDefaultStyleToCursorStyle();
1705
c59f6793 1706 if (extendSel)
76bcd815 1707 Refresh(false);
5d7836c4
JS		 1708 return true;
1709 }
7fe8059f 1710
5d7836c4
JS		 1711 return false;
1712}
1713
1714/// Move n words right
1715bool wxRichTextCtrl::WordRight(int WXUNUSED(n), int flags)
1716{
1717 long pos = FindNextWordPosition(1);
1718 if (pos != m_caretPosition)
1719 {
1720 wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(pos, true);
7fe8059f 1721
c59f6793
JS		 1722 bool extendSel = ExtendSelection(m_caretPosition, pos, flags);
1723 if (!extendSel)
5d7836c4 1724 SelectNone();
7fe8059f 1725
5d7836c4
JS		 1726 SetCaretPosition(pos, para->GetRange().GetStart() != pos);
1727 PositionCaret();
1728 SetDefaultStyleToCursorStyle();
1729
c59f6793 1730 if (extendSel)
76bcd815 1731 Refresh(false);
5d7836c4
JS		 1732 return true;
1733 }
7fe8059f 1734
5d7836c4
JS		 1735 return false;
1736}
1737
1738/// Sizing
1739void wxRichTextCtrl::OnSize(wxSizeEvent& event)
1740{
4d551ad5
JS		 1741 // Only do sizing optimization for large buffers
1742 if (GetBuffer().GetRange().GetEnd() > m_delayedLayoutThreshold)
1743 {
1744 m_fullLayoutRequired = true;
1745 m_fullLayoutTime = wxGetLocalTimeMillis();
1746 m_fullLayoutSavedPosition = GetFirstVisiblePosition();
2f36e8dc 1747 LayoutContent(true /* onlyVisibleRect */);
4d551ad5
JS		 1748 }
1749 else
1750 GetBuffer().Invalidate(wxRICHTEXT_ALL);
7fe8059f 1751
3e3a754f 1752#if wxRICHTEXT_BUFFERED_PAINTING
5d7836c4 1753 RecreateBuffer();
3e3a754f 1754#endif
5d7836c4
JS		 1755
1756 event.Skip();
1757}
1758
4d551ad5
JS		 1759
1760/// Idle-time processing
1761void wxRichTextCtrl::OnIdle(wxIdleEvent& event)
1762{
1763 const int layoutInterval = wxRICHTEXT_DEFAULT_LAYOUT_INTERVAL;
1764
1765 if (m_fullLayoutRequired && (wxGetLocalTimeMillis() > (m_fullLayoutTime + layoutInterval)))
1766 {
1767 m_fullLayoutRequired = false;
1768 m_fullLayoutTime = 0;
1769 GetBuffer().Invalidate(wxRICHTEXT_ALL);
1770 ShowPosition(m_fullLayoutSavedPosition);
76bcd815 1771 Refresh(false);
4d551ad5 1772 }
ab14c7aa
JS		 1773
1774 if (m_caretPositionForDefaultStyle != -2)
1775 {
1776 // If the caret position has changed, no longer reflect the default style
1777 // in the UI.
1778 if (GetCaretPosition() != m_caretPositionForDefaultStyle)
1779 m_caretPositionForDefaultStyle = -2;
1780 }
1781
4d551ad5
JS		 1782 event.Skip();
1783}
1784
c59f6793
JS		 1785/// Scrolling
1786void wxRichTextCtrl::OnScroll(wxScrollWinEvent& event)
1787{
1788 // Not used
1789 event.Skip();
1790}
1791
5d7836c4 1792/// Set up scrollbars, e.g. after a resize
169adfa9 1793void wxRichTextCtrl::SetupScrollbars(bool atTop)
5d7836c4
JS		 1794{
1795 if (m_freezeCount)
1796 return;
1797
1798 if (GetBuffer().IsEmpty())
1799 {
1800 SetScrollbars(0, 0, 0, 0, 0, 0);
1801 return;
1802 }
1803
1804 // TODO: reimplement scrolling so we scroll by line, not by fixed number
1805 // of pixels. See e.g. wxVScrolledWindow for ideas.
3956d02a 1806 int pixelsPerUnit = 5;
5d7836c4
JS		 1807 wxSize clientSize = GetClientSize();
1808
1809 int maxHeight = GetBuffer().GetCachedSize().y;
1810
3956d02a
JS		 1811 // Round up so we have at least maxHeight pixels
1812 int unitsY = (int) (((float)maxHeight/(float)pixelsPerUnit) + 0.5);
5d7836c4 1813
169adfa9
JS		 1814 int startX = 0, startY = 0;
1815 if (!atTop)
1816 GetViewStart(& startX, & startY);
7fe8059f 1817
5d7836c4 1818 int maxPositionX = 0; // wxMax(sz.x - clientSize.x, 0);
3956d02a 1819 int maxPositionY = (int) ((((float)(wxMax((unitsY*pixelsPerUnit) - clientSize.y, 0)))/((float)pixelsPerUnit)) + 0.5);
7fe8059f 1820
5d7836c4
JS		 1821 // Move to previous scroll position if
1822 // possible
1823 SetScrollbars(0, pixelsPerUnit,
1824 0, unitsY,
1825 wxMin(maxPositionX, startX), wxMin(maxPositionY, startY));
1826}
1827
1828/// Paint the background
1829void wxRichTextCtrl::PaintBackground(wxDC& dc)
1830{
1831 wxColour backgroundColour = GetBackgroundColour();
1832 if (!backgroundColour.Ok())
1833 backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
1834
1835 // Clear the background
1836 dc.SetBrush(wxBrush(backgroundColour));
1837 dc.SetPen(*wxTRANSPARENT_PEN);
7fe8059f 1838 wxRect windowRect(GetClientSize());
5d7836c4
JS		 1839 windowRect.x -= 2; windowRect.y -= 2;
1840 windowRect.width += 4; windowRect.height += 4;
7fe8059f 1841
5d7836c4
JS		 1842 // We need to shift the rectangle to take into account
1843 // scrolling. Converting device to logical coordinates.
1844 CalcUnscrolledPosition(windowRect.x, windowRect.y, & windowRect.x, & windowRect.y);
1845 dc.DrawRectangle(windowRect);
1846}
1847
3e3a754f 1848#if wxRICHTEXT_BUFFERED_PAINTING
5d7836c4
JS		 1849/// Recreate buffer bitmap if necessary
1850bool wxRichTextCtrl::RecreateBuffer(const wxSize& size)
1851{
1852 wxSize sz = size;
1853 if (sz == wxDefaultSize)
1854 sz = GetClientSize();
7fe8059f 1855
5d7836c4
JS		 1856 if (sz.x < 1 || sz.y < 1)
1857 return false;
7fe8059f 1858
5d7836c4
JS		 1859 if (!m_bufferBitmap.Ok() || m_bufferBitmap.GetWidth() < sz.x || m_bufferBitmap.GetHeight() < sz.y)
1860 m_bufferBitmap = wxBitmap(sz.x, sz.y);
1861 return m_bufferBitmap.Ok();
1862}
3e3a754f 1863#endif
5d7836c4
JS		 1864
1865// ----------------------------------------------------------------------------
1866// file IO functions
1867// ----------------------------------------------------------------------------
1868
3306aec1
JS		 1869bool wxRichTextCtrl::DoLoadFile(const wxString& filename, int fileType)
1870{
1871 bool success = GetBuffer().LoadFile(filename, fileType);
5d7836c4
JS		 1872 if (success)
1873 m_filename = filename;
1874
1875 DiscardEdits();
1876 SetInsertionPoint(0);
2f36e8dc 1877 LayoutContent();
5d7836c4 1878 PositionCaret();
169adfa9 1879 SetupScrollbars(true);
76bcd815 1880 Refresh(false);
343ae70d 1881 SendTextUpdatedEvent();
5d7836c4
JS		 1882
1883 if (success)
1884 return true;
1885 else
1886 {
1887 wxLogError(_("File couldn't be loaded."));
7fe8059f 1888
5d7836c4
JS		 1889 return false;
1890 }
1891}
1892
3306aec1 1893bool wxRichTextCtrl::DoSaveFile(const wxString& filename, int fileType)
5d7836c4 1894{
3306aec1 1895 if (GetBuffer().SaveFile(filename, fileType))
5d7836c4 1896 {
3306aec1 1897 m_filename = filename;
5d7836c4
JS		 1898
1899 DiscardEdits();
1900
1901 return true;
5d7836c4
JS		 1902 }
1903
1904 wxLogError(_("The text couldn't be saved."));
1905
1906 return false;
1907}
1908
1909// ----------------------------------------------------------------------------
1910// wxRichTextCtrl specific functionality
1911// ----------------------------------------------------------------------------
1912
1913/// Add a new paragraph of text to the end of the buffer
1914wxRichTextRange wxRichTextCtrl::AddParagraph(const wxString& text)
1915{
1916 return GetBuffer().AddParagraph(text);
1917}
1918
1919/// Add an image
1920wxRichTextRange wxRichTextCtrl::AddImage(const wxImage& image)
1921{
1922 return GetBuffer().AddImage(image);
1923}
1924
1925// ----------------------------------------------------------------------------
1926// selection and ranges
1927// ----------------------------------------------------------------------------
1928
1929void wxRichTextCtrl::SelectAll()
1930{
96c9f0f6 1931 SetSelection(0, GetLastPosition()+1);
5d7836c4
JS		 1932 m_selectionAnchor = -1;
1933}
1934
1935/// Select none
1936void wxRichTextCtrl::SelectNone()
1937{
c59f6793
JS		 1938 if (!(GetSelectionRange() == wxRichTextRange(-2, -2)))
1939 SetSelection(-2, -2);
5d7836c4
JS		 1940 m_selectionAnchor = -2;
1941}
1942
0ca07313
JS		 1943static bool wxIsWordDelimiter(const wxString& text)
1944{
1c07e924 1945 return !text.IsEmpty() && !wxIsalnum(text[0]);
0ca07313
JS		 1946}
1947
1948/// Select the word at the given character position
1949bool wxRichTextCtrl::SelectWord(long position)
1950{
1951 if (position < 0 || position > GetBuffer().GetRange().GetEnd())
1952 return false;
1807a1f3 1953
0ca07313
JS		 1954 wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(position);
1955 if (!para)
1956 return false;
1957
1958 long positionStart = position;
1959 long positionEnd = position;
1807a1f3 1960
0ca07313
JS		 1961 for (positionStart = position; positionStart >= para->GetRange().GetStart(); positionStart --)
1962 {
1963 wxString text = GetBuffer().GetTextForRange(wxRichTextRange(positionStart, positionStart));
1964 if (wxIsWordDelimiter(text))
1965 {
1966 positionStart ++;
1967 break;
1968 }
1969 }
1970 if (positionStart < para->GetRange().GetStart())
1971 positionStart = para->GetRange().GetStart();
1807a1f3 1972
0ca07313
JS		 1973 for (positionEnd = position; positionEnd < para->GetRange().GetEnd(); positionEnd ++)
1974 {
1975 wxString text = GetBuffer().GetTextForRange(wxRichTextRange(positionEnd, positionEnd));
1976 if (wxIsWordDelimiter(text))
1977 {
1978 positionEnd --;
1979 break;
1980 }
1981 }
1982 if (positionEnd >= para->GetRange().GetEnd())
1983 positionEnd = para->GetRange().GetEnd();
1807a1f3 1984
0ca07313
JS		 1985 SetSelection(positionStart, positionEnd+1);
1986
1987 if (positionStart >= 0)
1988 {
1989 MoveCaret(positionStart-1, true);
1807a1f3 1990 SetDefaultStyleToCursorStyle();
0ca07313
JS		 1991 }
1992
1993 return true;
1994}
1995
5d7836c4
JS		 1996wxString wxRichTextCtrl::GetStringSelection() const
1997{
1998 long from, to;
1999 GetSelection(&from, &to);
2000
2001 return GetRange(from, to);
2002}
2003
5d7836c4
JS		 2004// ----------------------------------------------------------------------------
2005// hit testing
2006// ----------------------------------------------------------------------------
2007
2008wxTextCtrlHitTestResult
2009wxRichTextCtrl::HitTest(const wxPoint& pt, wxTextCoord *x, wxTextCoord *y) const
2010{
2011 // implement in terms of the other overload as the native ports typically
2012 // can get the position and not (x, y) pair directly (although wxUniv
2013 // directly gets x and y -- and so overrides this method as well)
2014 long pos;
2015 wxTextCtrlHitTestResult rc = HitTest(pt, &pos);
2016
2017 if ( rc != wxTE_HT_UNKNOWN )
2018 {
2019 PositionToXY(pos, x, y);
2020 }
2021
2022 return rc;
2023}
2024
2025wxTextCtrlHitTestResult
2026wxRichTextCtrl::HitTest(const wxPoint& pt,
2027 long * pos) const
2028{
2029 wxClientDC dc((wxRichTextCtrl*) this);
2030 ((wxRichTextCtrl*)this)->PrepareDC(dc);
61399247 2031
563d25ba
JS		 2032 // Buffer uses logical position (relative to start of buffer)
2033 // so convert
2034 wxPoint pt2 = GetLogicalPoint(pt);
5d7836c4 2035
563d25ba 2036 int hit = ((wxRichTextCtrl*)this)->GetBuffer().HitTest(dc, pt2, *pos);
41e155b4 2037
f262b25c
JS		 2038 if ((hit & wxRICHTEXT_HITTEST_BEFORE) && (hit & wxRICHTEXT_HITTEST_OUTSIDE))
2039 return wxTE_HT_BEFORE;
2040 else if ((hit & wxRICHTEXT_HITTEST_AFTER) && (hit & wxRICHTEXT_HITTEST_OUTSIDE))
2041 return wxTE_HT_BEYOND;
2042 else if (hit & wxRICHTEXT_HITTEST_BEFORE|wxRICHTEXT_HITTEST_AFTER)
2043 return wxTE_HT_ON_TEXT;
41e155b4
WS		 2044
2045 return wxTE_HT_UNKNOWN;
5d7836c4
JS		 2046}
2047
2048// ----------------------------------------------------------------------------
2049// set/get the controls text
2050// ----------------------------------------------------------------------------
2051
2052wxString wxRichTextCtrl::GetValue() const
2053{
2054 return GetBuffer().GetText();
2055}
2056
2057wxString wxRichTextCtrl::GetRange(long from, long to) const
2058{
96c9f0f6
JS		 2059 // Public API for range is different from internals
2060 return GetBuffer().GetTextForRange(wxRichTextRange(from, to-1));
5d7836c4
JS		 2061}
2062
343ae70d 2063void wxRichTextCtrl::DoSetValue(const wxString& value, int flags)
5d7836c4
JS		 2064{
2065 Clear();
2066
2067 // if the text is long enough, it's faster to just set it instead of first
2068 // comparing it with the old one (chances are that it will be different
2069 // anyhow, this comparison is there to avoid flicker for small single-line
2070 // edit controls mostly)
2071 if ( (value.length() > 0x400) || (value != GetValue()) )
2072 {
343ae70d 2073 DoWriteText(value);
5d7836c4
JS		 2074
2075 // for compatibility, don't move the cursor when doing SetValue()
2076 SetInsertionPoint(0);
2077 }
2078 else // same text
2079 {
343ae70d
VZ		 2080 if ( flags & SetValue_SendEvent )
2081 {
2082 // still send an event for consistency
2083 SendTextUpdatedEvent();
2084 }
5d7836c4
JS		 2085 }
2086
2087 // we should reset the modified flag even if the value didn't really change
2088
2089 // mark the control as being not dirty - we changed its text, not the
2090 // user
2091 DiscardEdits();
2092}
2093
2094void wxRichTextCtrl::WriteText(const wxString& value)
2095{
2096 DoWriteText(value);
2097}
2098
343ae70d 2099void wxRichTextCtrl::DoWriteText(const wxString& value, int flags)
5d7836c4 2100{
0ca07313 2101 wxString valueUnix = wxTextFile::Translate(value, wxTextFileType_Unix);
fe5aa22c 2102
33dddf58 2103 GetBuffer().InsertTextWithUndo(m_caretPosition+1, valueUnix, this, wxRICHTEXT_INSERT_WITH_PREVIOUS_PARAGRAPH_STYLE);
343ae70d
VZ		 2104
2105 if ( flags & SetValue_SendEvent )
2106 SendTextUpdatedEvent();
5d7836c4
JS		 2107}
2108
2109void wxRichTextCtrl::AppendText(const wxString& text)
2110{
2111 SetInsertionPointEnd();
2112
2113 WriteText(text);
2114}
2115
2116/// Write an image at the current insertion point
2117bool wxRichTextCtrl::WriteImage(const wxImage& image, int bitmapType)
2118{
2119 wxRichTextImageBlock imageBlock;
2120
2121 wxImage image2 = image;
2122 if (imageBlock.MakeImageBlock(image2, bitmapType))
2123 return WriteImage(imageBlock);
41e155b4
WS		 2124
2125 return false;
5d7836c4
JS		 2126}
2127
2128bool wxRichTextCtrl::WriteImage(const wxString& filename, int bitmapType)
2129{
2130 wxRichTextImageBlock imageBlock;
2131
2132 wxImage image;
2133 if (imageBlock.MakeImageBlock(filename, bitmapType, image, false))
2134 return WriteImage(imageBlock);
41e155b4
WS		 2135
2136 return false;
5d7836c4
JS		 2137}
2138
2139bool wxRichTextCtrl::WriteImage(const wxRichTextImageBlock& imageBlock)
2140{
2141 return GetBuffer().InsertImageWithUndo(m_caretPosition+1, imageBlock, this);
2142}
2143
2144bool wxRichTextCtrl::WriteImage(const wxBitmap& bitmap, int bitmapType)
2145{
2146 if (bitmap.Ok())
2147 {
2148 wxRichTextImageBlock imageBlock;
7fe8059f 2149
5d7836c4
JS		 2150 wxImage image = bitmap.ConvertToImage();
2151 if (image.Ok() && imageBlock.MakeImageBlock(image, bitmapType))
2152 return WriteImage(imageBlock);
5d7836c4 2153 }
41e155b4 2154
5d7836c4
JS		 2155 return false;
2156}
2157
2158/// Insert a newline (actually paragraph) at the current insertion point.
2159bool wxRichTextCtrl::Newline()
2160{
2161 return GetBuffer().InsertNewlineWithUndo(m_caretPosition+1, this);
2162}
2163
ff76711f
JS		 2164/// Insert a line break at the current insertion point.
2165bool wxRichTextCtrl::LineBreak()
2166{
2167 wxString text;
2168 text = wxRichTextLineBreakChar;
2169 return GetBuffer().InsertTextWithUndo(m_caretPosition+1, text, this);
2170}
5d7836c4
JS		 2171
2172// ----------------------------------------------------------------------------
2173// Clipboard operations
2174// ----------------------------------------------------------------------------
2175
2176void wxRichTextCtrl::Copy()
2177{
2178 if (CanCopy())
2179 {
fe5aa22c 2180 wxRichTextRange range = GetInternalSelectionRange();
5d7836c4
JS		 2181 GetBuffer().CopyToClipboard(range);
2182 }
2183}
2184
2185void wxRichTextCtrl::Cut()
2186{
2187 if (CanCut())
2188 {
fe5aa22c 2189 wxRichTextRange range = GetInternalSelectionRange();
5d7836c4
JS		 2190 GetBuffer().CopyToClipboard(range);
2191
2192 DeleteSelectedContent();
2f36e8dc 2193 LayoutContent();
76bcd815 2194 Refresh(false);
5d7836c4
JS		 2195 }
2196}
2197
2198void wxRichTextCtrl::Paste()
2199{
2200 if (CanPaste())
2201 {
2202 BeginBatchUndo(_("Paste"));
7fe8059f 2203
5d7836c4
JS		 2204 long newPos = m_caretPosition;
2205 DeleteSelectedContent(& newPos);
7fe8059f 2206
5d7836c4
JS		 2207 GetBuffer().PasteFromClipboard(newPos);
2208
2209 EndBatchUndo();
2210 }
2211}
2212
2213void wxRichTextCtrl::DeleteSelection()
2214{
2215 if (CanDeleteSelection())
2216 {
2217 DeleteSelectedContent();
2218 }
2219}
2220
2221bool wxRichTextCtrl::HasSelection() const
2222{
2223 return m_selectionRange.GetStart() != -2 && m_selectionRange.GetEnd() != -2;
2224}
2225
2226bool wxRichTextCtrl::CanCopy() const
2227{
2228 // Can copy if there's a selection
2229 return HasSelection();
2230}
2231
2232bool wxRichTextCtrl::CanCut() const
2233{
2234 return HasSelection() && IsEditable();
2235}
2236
2237bool wxRichTextCtrl::CanPaste() const
2238{
2239 if ( !IsEditable() )
2240 return false;
2241
2242 return GetBuffer().CanPasteFromClipboard();
2243}
2244
2245bool wxRichTextCtrl::CanDeleteSelection() const
2246{
2247 return HasSelection() && IsEditable();
2248}
2249
2250
2251// ----------------------------------------------------------------------------
2252// Accessors
2253// ----------------------------------------------------------------------------
2254
2255void wxRichTextCtrl::SetEditable(bool editable)
2256{
2257 m_editable = editable;
2258}
2259
2260void wxRichTextCtrl::SetInsertionPoint(long pos)
2261{
2262 SelectNone();
2263
2264 m_caretPosition = pos - 1;
2265}
2266
2267void wxRichTextCtrl::SetInsertionPointEnd()
2268{
2269 long pos = GetLastPosition();
2270 SetInsertionPoint(pos);
2271}
2272
2273long wxRichTextCtrl::GetInsertionPoint() const
2274{
2275 return m_caretPosition+1;
2276}
2277
2278wxTextPos wxRichTextCtrl::GetLastPosition() const
2279{
2280 return GetBuffer().GetRange().GetEnd();
2281}
2282
2283// If the return values from and to are the same, there is no
2284// selection.
2285void wxRichTextCtrl::GetSelection(long* from, long* to) const
2286{
2287 *from = m_selectionRange.GetStart();
2288 *to = m_selectionRange.GetEnd();
96c9f0f6
JS		 2289 if ((*to) != -1 && (*to) != -2)
2290 (*to) ++;
5d7836c4
JS		 2291}
2292
2293bool wxRichTextCtrl::IsEditable() const
2294{
2295 return m_editable;
2296}
2297
2298// ----------------------------------------------------------------------------
2299// selection
2300// ----------------------------------------------------------------------------
2301
2302void wxRichTextCtrl::SetSelection(long from, long to)
2303{
2304 // if from and to are both -1, it means (in wxWidgets) that all text should
2305 // be selected.
2306 if ( (from == -1) && (to == -1) )
2307 {
2308 from = 0;
96c9f0f6 2309 to = GetLastPosition()+1;
5d7836c4
JS		 2310 }
2311
2312 DoSetSelection(from, to);
2313}
2314
2315void wxRichTextCtrl::DoSetSelection(long from, long to, bool WXUNUSED(scrollCaret))
2316{
2317 m_selectionAnchor = from;
96c9f0f6 2318 m_selectionRange.SetRange(from, to-1);
ff76711f
JS		 2319 if (from > -2)
2320 m_caretPosition = from-1;
0ca07313 2321
76bcd815 2322 Refresh(false);
5d7836c4
JS		 2323 PositionCaret();
2324}
2325
2326// ----------------------------------------------------------------------------
2327// Editing
2328// ----------------------------------------------------------------------------
2329
343ae70d
VZ		 2330void wxRichTextCtrl::Replace(long WXUNUSED(from), long WXUNUSED(to),
2331 const wxString& value)
5d7836c4
JS		 2332{
2333 BeginBatchUndo(_("Replace"));
2334
2335 DeleteSelectedContent();
2336
343ae70d 2337 DoWriteText(value, SetValue_SelectionOnly);
5d7836c4
JS		 2338
2339 EndBatchUndo();
2340}
2341
2342void wxRichTextCtrl::Remove(long from, long to)
2343{
2344 SelectNone();
2345
f52eff54 2346 GetBuffer().DeleteRangeWithUndo(wxRichTextRange(from, to), this);
5d7836c4 2347
2f36e8dc 2348 LayoutContent();
5d7836c4 2349 if (!IsFrozen())
76bcd815 2350 Refresh(false);
5d7836c4
JS		 2351}
2352
2353bool wxRichTextCtrl::IsModified() const
2354{
2355 return m_buffer.IsModified();
2356}
2357
2358void wxRichTextCtrl::MarkDirty()
2359{
2360 m_buffer.Modify(true);
2361}
2362
2363void wxRichTextCtrl::DiscardEdits()
2364{
ab14c7aa 2365 m_caretPositionForDefaultStyle = -2;
5d7836c4
JS		 2366 m_buffer.Modify(false);
2367 m_buffer.GetCommandProcessor()->ClearCommands();
2368}
2369
2370int wxRichTextCtrl::GetNumberOfLines() const
2371{
2372 return GetBuffer().GetParagraphCount();
2373}
2374
2375// ----------------------------------------------------------------------------
2376// Positions <-> coords
2377// ----------------------------------------------------------------------------
2378
2379long wxRichTextCtrl::XYToPosition(long x, long y) const
2380{
2381 return GetBuffer().XYToPosition(x, y);
2382}
2383
2384bool wxRichTextCtrl::PositionToXY(long pos, long *x, long *y) const
2385{
2386 return GetBuffer().PositionToXY(pos, x, y);
2387}
2388
2389// ----------------------------------------------------------------------------
2390//
2391// ----------------------------------------------------------------------------
2392
2393void wxRichTextCtrl::ShowPosition(long pos)
2394{
2395 if (!IsPositionVisible(pos))
2396 ScrollIntoView(pos-1, WXK_DOWN);
2397}
2398
2399int wxRichTextCtrl::GetLineLength(long lineNo) const
2400{
2401 return GetBuffer().GetParagraphLength(lineNo);
2402}
2403
2404wxString wxRichTextCtrl::GetLineText(long lineNo) const
2405{
2406 return GetBuffer().GetParagraphText(lineNo);
2407}
2408
2409// ----------------------------------------------------------------------------
2410// Undo/redo
2411// ----------------------------------------------------------------------------
2412
2413void wxRichTextCtrl::Undo()
2414{
2415 if (CanUndo())
2416 {
2417 GetCommandProcessor()->Undo();
2418 }
2419}
2420
2421void wxRichTextCtrl::Redo()
2422{
2423 if (CanRedo())
2424 {
2425 GetCommandProcessor()->Redo();
2426 }
2427}
2428
2429bool wxRichTextCtrl::CanUndo() const
2430{
2431 return GetCommandProcessor()->CanUndo();
2432}
2433
2434bool wxRichTextCtrl::CanRedo() const
2435{
2436 return GetCommandProcessor()->CanRedo();
2437}
2438
2439// ----------------------------------------------------------------------------
563d25ba 2440// implementation details
5d7836c4
JS		 2441// ----------------------------------------------------------------------------
2442
563d25ba 2443void wxRichTextCtrl::Command(wxCommandEvent& event)
5d7836c4
JS		 2444{
2445 SetValue(event.GetString());
2446 GetEventHandler()->ProcessEvent(event);
2447}
2448
2449void wxRichTextCtrl::OnDropFiles(wxDropFilesEvent& event)
2450{
2451 // By default, load the first file into the text window.
2452 if (event.GetNumberOfFiles() > 0)
2453 {
2454 LoadFile(event.GetFiles()[0]);
2455 }
2456}
2457
5d7836c4
JS		 2458wxSize wxRichTextCtrl::DoGetBestSize() const
2459{
2460 return wxSize(10, 10);
2461}
2462
2463// ----------------------------------------------------------------------------
2464// standard handlers for standard edit menu events
2465// ----------------------------------------------------------------------------
2466
2467void wxRichTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
2468{
2469 Cut();
2470}
2471
2472void wxRichTextCtrl::OnClear(wxCommandEvent& WXUNUSED(event))
2473{
2474 DeleteSelection();
2475}
2476
2477void wxRichTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
2478{
2479 Copy();
2480}
2481
2482void wxRichTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
2483{
2484 Paste();
2485}
2486
2487void wxRichTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
2488{
2489 Undo();
2490}
2491
2492void wxRichTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
2493{
2494 Redo();
2495}
2496
2497void wxRichTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
2498{
2499 event.Enable( CanCut() );
2500}
2501
2502void wxRichTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
2503{
2504 event.Enable( CanCopy() );
2505}
2506
2507void wxRichTextCtrl::OnUpdateClear(wxUpdateUIEvent& event)
2508{
2509 event.Enable( CanDeleteSelection() );
2510}
2511
2512void wxRichTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
2513{
2514 event.Enable( CanPaste() );
2515}
2516
2517void wxRichTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
2518{
2519 event.Enable( CanUndo() );
2520 event.SetText( GetCommandProcessor()->GetUndoMenuLabel() );
2521}
2522
2523void wxRichTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
2524{
2525 event.Enable( CanRedo() );
2526 event.SetText( GetCommandProcessor()->GetRedoMenuLabel() );
2527}
2528
2529void wxRichTextCtrl::OnSelectAll(wxCommandEvent& WXUNUSED(event))
2530{
2531 SelectAll();
2532}
2533
2534void wxRichTextCtrl::OnUpdateSelectAll(wxUpdateUIEvent& event)
2535{
2536 event.Enable(GetLastPosition() > 0);
2537}
2538
2539void wxRichTextCtrl::OnContextMenu(wxContextMenuEvent& WXUNUSED(event))
2540{
2541 if (!m_contextMenu)
2542 {
2543 m_contextMenu = new wxMenu;
2544 m_contextMenu->Append(wxID_UNDO, _("&Undo"));
2545 m_contextMenu->Append(wxID_REDO, _("&Redo"));
2546 m_contextMenu->AppendSeparator();
2547 m_contextMenu->Append(wxID_CUT, _("Cu&t"));
2548 m_contextMenu->Append(wxID_COPY, _("&Copy"));
2549 m_contextMenu->Append(wxID_PASTE, _("&Paste"));
2550 m_contextMenu->Append(wxID_CLEAR, _("&Delete"));
2551 m_contextMenu->AppendSeparator();
2552 m_contextMenu->Append(wxID_SELECTALL, _("Select &All"));
2553 }
2554 PopupMenu(m_contextMenu);
2555 return;
2556}
2557
2558bool wxRichTextCtrl::SetStyle(long start, long end, const wxTextAttrEx& style)
2559{
96c9f0f6 2560 return GetBuffer().SetStyle(wxRichTextRange(start, end-1), style);
5d7836c4
JS		 2561}
2562
27e20452
JS		 2563bool wxRichTextCtrl::SetStyle(long start, long end, const wxTextAttr& style)
2564{
96c9f0f6 2565 return GetBuffer().SetStyle(wxRichTextRange(start, end-1), wxTextAttrEx(style));
27e20452
JS		 2566}
2567
5d7836c4
JS		 2568bool wxRichTextCtrl::SetStyle(const wxRichTextRange& range, const wxRichTextAttr& style)
2569{
96c9f0f6 2570 return GetBuffer().SetStyle(range.ToInternal(), style);
5d7836c4
JS		 2571}
2572
3e3a754f
JS		 2573// extended style setting operation with flags including:
2574// wxRICHTEXT_SETSTYLE_WITH_UNDO, wxRICHTEXT_SETSTYLE_OPTIMIZE, wxRICHTEXT_SETSTYLE_PARAGRAPHS_ONLY.
2575// see richtextbuffer.h for more details.
2576bool wxRichTextCtrl::SetStyleEx(long start, long end, const wxTextAttrEx& style, int flags)
2577{
2578 return GetBuffer().SetStyle(wxRichTextRange(start, end-1), style, flags);
2579}
2580
2581bool wxRichTextCtrl::SetStyleEx(const wxRichTextRange& range, const wxTextAttrEx& style, int flags)
2582{
2583 return GetBuffer().SetStyle(range.ToInternal(), style, flags);
2584}
2585
2586bool wxRichTextCtrl::SetStyleEx(const wxRichTextRange& range, const wxRichTextAttr& style, int flags)
2587{
2588 return GetBuffer().SetStyle(range.ToInternal(), style, flags);
2589}
2590
5d7836c4
JS		 2591bool wxRichTextCtrl::SetDefaultStyle(const wxTextAttrEx& style)
2592{
2593 return GetBuffer().SetDefaultStyle(style);
2594}
2595
27e20452
JS		 2596bool wxRichTextCtrl::SetDefaultStyle(const wxTextAttr& style)
2597{
2598 return GetBuffer().SetDefaultStyle(wxTextAttrEx(style));
2599}
2600
5d7836c4
JS		 2601const wxTextAttrEx& wxRichTextCtrl::GetDefaultStyleEx() const
2602{
2603 return GetBuffer().GetDefaultStyle();
2604}
2605
27e20452
JS		 2606const wxTextAttr& wxRichTextCtrl::GetDefaultStyle() const
2607{
61399247 2608 return GetBuffer().GetDefaultStyle();
27e20452
JS		 2609}
2610
3966a9f4 2611bool wxRichTextCtrl::GetStyle(long position, wxTextAttr& style)
27e20452 2612{
fe5aa22c 2613 wxTextAttrEx attr(style);
27e20452
JS		 2614 if (GetBuffer().GetStyle(position, attr))
2615 {
2616 style = attr;
2617 return true;
2618 }
2619 else
2620 return false;
2621}
2622
3966a9f4 2623bool wxRichTextCtrl::GetStyle(long position, wxTextAttrEx& style)
5d7836c4
JS		 2624{
2625 return GetBuffer().GetStyle(position, style);
2626}
2627
3966a9f4 2628bool wxRichTextCtrl::GetStyle(long position, wxRichTextAttr& style)
5d7836c4
JS		 2629{
2630 return GetBuffer().GetStyle(position, style);
2631}
2632
a7ed48a5
JS		 2633// get the common set of styles for the range
2634bool wxRichTextCtrl::GetStyleForRange(const wxRichTextRange& range, wxRichTextAttr& style)
2635{
2636 wxTextAttrEx styleEx;
2637 if (GetBuffer().GetStyleForRange(range.ToInternal(), styleEx))
2638 {
2639 style = styleEx;
2640 return true;
2641 }
2642 else
2643 return false;
2644}
2645
2646bool wxRichTextCtrl::GetStyleForRange(const wxRichTextRange& range, wxTextAttrEx& style)
2647{
2648 return GetBuffer().GetStyleForRange(range.ToInternal(), style);
2649}
2650
fe5aa22c
JS		 2651/// Get the content (uncombined) attributes for this position.
2652
2653bool wxRichTextCtrl::GetUncombinedStyle(long position, wxTextAttr& style)
2654{
2655 wxTextAttrEx attr(style);
2656 if (GetBuffer().GetUncombinedStyle(position, attr))
2657 {
2658 style = attr;
2659 return true;
2660 }
2661 else
2662 return false;
2663}
2664
2665bool wxRichTextCtrl::GetUncombinedStyle(long position, wxTextAttrEx& style)
2666{
2667 return GetBuffer().GetUncombinedStyle(position, style);
2668}
2669
2670bool wxRichTextCtrl::GetUncombinedStyle(long position, wxRichTextAttr& style)
2671{
2672 return GetBuffer().GetUncombinedStyle(position, style);
2673}
2674
5d7836c4
JS		 2675/// Set font, and also the buffer attributes
2676bool wxRichTextCtrl::SetFont(const wxFont& font)
2677{
5d7836c4 2678 wxControl::SetFont(font);
5d7836c4
JS		 2679
2680 wxTextAttrEx attr = GetBuffer().GetAttributes();
2681 attr.SetFont(font);
2682 GetBuffer().SetBasicStyle(attr);
fe5aa22c 2683
fe5aa22c
JS		 2684 GetBuffer().Invalidate(wxRICHTEXT_ALL);
2685 Refresh(false);
5d7836c4
JS		 2686
2687 return true;
2688}
2689
4d551ad5
JS		 2690/// Transform logical to physical
2691wxPoint wxRichTextCtrl::GetPhysicalPoint(const wxPoint& ptLogical) const
5d7836c4
JS		 2692{
2693 wxPoint pt;
2694 CalcScrolledPosition(ptLogical.x, ptLogical.y, & pt.x, & pt.y);
2695
2696 return pt;
2697}
2698
2699/// Transform physical to logical
4d551ad5 2700wxPoint wxRichTextCtrl::GetLogicalPoint(const wxPoint& ptPhysical) const
5d7836c4
JS		 2701{
2702 wxPoint pt;
2703 CalcUnscrolledPosition(ptPhysical.x, ptPhysical.y, & pt.x, & pt.y);
2704
2705 return pt;
2706}
2707
2708/// Position the caret
2709void wxRichTextCtrl::PositionCaret()
2710{
c59f6793
JS		 2711 if (!GetCaret())
2712 return;
2713
2714 //wxLogDebug(wxT("PositionCaret"));
2715
5d7836c4
JS		 2716 wxRect caretRect;
2717 if (GetCaretPositionForIndex(GetCaretPosition(), caretRect))
2718 {
2719 wxPoint originalPt = caretRect.GetPosition();
2720 wxPoint pt = GetPhysicalPoint(originalPt);
c59f6793
JS		 2721 if (GetCaret()->GetPosition() != pt)
2722 {
2723 GetCaret()->Move(pt);
2724 GetCaret()->SetSize(caretRect.GetSize());
2725 }
5d7836c4
JS		 2726 }
2727}
2728
2729/// Get the caret height and position for the given character position
2730bool wxRichTextCtrl::GetCaretPositionForIndex(long position, wxRect& rect)
2731{
2732 wxClientDC dc(this);
2733 dc.SetFont(GetFont());
7fe8059f 2734
5d7836c4
JS		 2735 PrepareDC(dc);
2736
2737 wxPoint pt;
2738 int height = 0;
2739
2740 if (GetBuffer().FindPosition(dc, position, pt, & height, m_caretAtLineStart))
2741 {
88bee7e6
JS		 2742 // Caret height can't be zero
2743 if (height == 0)
2744 height = dc.GetCharHeight();
2745
5d7836c4
JS		 2746 rect = wxRect(pt, wxSize(wxRICHTEXT_DEFAULT_CARET_WIDTH, height));
2747 return true;
2748 }
41e155b4
WS		 2749
2750 return false;
5d7836c4
JS		 2751}
2752
2753/// Gets the line for the visible caret position. If the caret is
2754/// shown at the very end of the line, it means the next character is actually
2755/// on the following line. So let's get the line we're expecting to find
2756/// if this is the case.
2757wxRichTextLine* wxRichTextCtrl::GetVisibleLineForCaretPosition(long caretPosition) const
2758{
2759 wxRichTextLine* line = GetBuffer().GetLineAtPosition(caretPosition, true);
2760 wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(caretPosition, true);
2761 if (line)
2762 {
1e967276
JS		 2763 wxRichTextRange lineRange = line->GetAbsoluteRange();
2764 if (caretPosition == lineRange.GetStart()-1 &&
2765 (para->GetRange().GetStart() != lineRange.GetStart()))
5d7836c4
JS		 2766 {
2767 if (!m_caretAtLineStart)
2768 line = GetBuffer().GetLineAtPosition(caretPosition-1, true);
2769 }
2770 }
2771 return line;
2772}
2773
2774
2775/// Move the caret to the given character position
2776bool wxRichTextCtrl::MoveCaret(long pos, bool showAtLineStart)
2777{
2778 if (GetBuffer().GetDirty())
2f36e8dc 2779 LayoutContent();
5d7836c4
JS		 2780
2781 if (pos <= GetBuffer().GetRange().GetEnd())
2782 {
2783 SetCaretPosition(pos, showAtLineStart);
2784
2785 PositionCaret();
2786
2787 return true;
2788 }
2789 else
2790 return false;
2791}
2792
2793/// Layout the buffer: which we must do before certain operations, such as
2794/// setting the caret position.
2f36e8dc 2795bool wxRichTextCtrl::LayoutContent(bool onlyVisibleRect)
5d7836c4 2796{
4d551ad5 2797 if (GetBuffer().GetDirty() || onlyVisibleRect)
1e967276
JS		 2798 {
2799 wxRect availableSpace(GetClientSize());
2800 if (availableSpace.width == 0)
2801 availableSpace.width = 10;
2802 if (availableSpace.height == 0)
2803 availableSpace.height = 10;
4d551ad5
JS		 2804
2805 int flags = wxRICHTEXT_FIXED_WIDTH|wxRICHTEXT_VARIABLE_HEIGHT;
2806 if (onlyVisibleRect)
2807 {
2808 flags |= wxRICHTEXT_LAYOUT_SPECIFIED_RECT;
2809 availableSpace.SetPosition(GetLogicalPoint(wxPoint(0, 0)));
2810 }
41e155b4 2811
1e967276
JS		 2812 wxClientDC dc(this);
2813 dc.SetFont(GetFont());
41e155b4 2814
1e967276 2815 PrepareDC(dc);
41e155b4 2816
1e967276
JS		 2817 GetBuffer().Defragment();
2818 GetBuffer().UpdateRanges(); // If items were deleted, ranges need recalculation
4d551ad5 2819 GetBuffer().Layout(dc, availableSpace, flags);
1e967276 2820 GetBuffer().SetDirty(false);
41e155b4 2821
1e967276
JS		 2822 if (!IsFrozen())
2823 SetupScrollbars();
2824 }
5d7836c4
JS		 2825
2826 return true;
2827}
2828
2829/// Is all of the selection bold?
3966a9f4 2830bool wxRichTextCtrl::IsSelectionBold()
5d7836c4
JS		 2831{
2832 if (HasSelection())
2833 {
2834 wxRichTextAttr attr;
a7ed48a5 2835 wxRichTextRange range = GetSelectionRange();
5d7836c4
JS		 2836 attr.SetFlags(wxTEXT_ATTR_FONT_WEIGHT);
2837 attr.SetFontWeight(wxBOLD);
7fe8059f 2838
5d7836c4
JS		 2839 return HasCharacterAttributes(range, attr);
2840 }
2841 else
2842 {
2843 // If no selection, then we need to combine current style with default style
2844 // to see what the effect would be if we started typing.
2845 wxRichTextAttr attr;
2846 attr.SetFlags(wxTEXT_ATTR_FONT_WEIGHT);
ab14c7aa
JS		 2847
2848 long pos = GetAdjustedCaretPosition(GetCaretPosition());
2849 if (GetStyle(pos, attr))
5d7836c4 2850 {
ab14c7aa
JS		 2851 if (IsDefaultStyleShowing())
2852 wxRichTextApplyStyle(attr, GetDefaultStyleEx());
5d7836c4
JS		 2853 return attr.GetFontWeight() == wxBOLD;
2854 }
2855 }
2856 return false;
2857}
2858
2859/// Is all of the selection italics?
3966a9f4 2860bool wxRichTextCtrl::IsSelectionItalics()
5d7836c4
JS		 2861{
2862 if (HasSelection())
2863 {
a7ed48a5 2864 wxRichTextRange range = GetSelectionRange();
5d7836c4
JS		 2865 wxRichTextAttr attr;
2866 attr.SetFlags(wxTEXT_ATTR_FONT_ITALIC);
2867 attr.SetFontStyle(wxITALIC);
7fe8059f 2868
5d7836c4
JS		 2869 return HasCharacterAttributes(range, attr);
2870 }
2871 else
2872 {
2873 // If no selection, then we need to combine current style with default style
2874 // to see what the effect would be if we started typing.
2875 wxRichTextAttr attr;
2876 attr.SetFlags(wxTEXT_ATTR_FONT_ITALIC);
ab14c7aa
JS		 2877
2878 long pos = GetAdjustedCaretPosition(GetCaretPosition());
2879 if (GetStyle(pos, attr))
5d7836c4 2880 {
ab14c7aa
JS		 2881 if (IsDefaultStyleShowing())
2882 wxRichTextApplyStyle(attr, GetDefaultStyleEx());
5d7836c4
JS		 2883 return attr.GetFontStyle() == wxITALIC;
2884 }
2885 }
2886 return false;
2887}
2888
2889/// Is all of the selection underlined?
3966a9f4 2890bool wxRichTextCtrl::IsSelectionUnderlined()
5d7836c4
JS		 2891{
2892 if (HasSelection())
2893 {
a7ed48a5 2894 wxRichTextRange range = GetSelectionRange();
5d7836c4
JS		 2895 wxRichTextAttr attr;
2896 attr.SetFlags(wxTEXT_ATTR_FONT_UNDERLINE);
2897 attr.SetFontUnderlined(true);
7fe8059f 2898
5d7836c4
JS		 2899 return HasCharacterAttributes(range, attr);
2900 }
2901 else
2902 {
2903 // If no selection, then we need to combine current style with default style
2904 // to see what the effect would be if we started typing.
2905 wxRichTextAttr attr;
2906 attr.SetFlags(wxTEXT_ATTR_FONT_UNDERLINE);
ab14c7aa 2907 long pos = GetAdjustedCaretPosition(GetCaretPosition());
fe5aa22c 2908
ab14c7aa 2909 if (GetStyle(pos, attr))
5d7836c4 2910 {
ab14c7aa
JS		 2911 if (IsDefaultStyleShowing())
2912 wxRichTextApplyStyle(attr, GetDefaultStyleEx());
5d7836c4
JS		 2913 return attr.GetFontUnderlined();
2914 }
2915 }
2916 return false;
2917}
2918
2919/// Apply bold to the selection
2920bool wxRichTextCtrl::ApplyBoldToSelection()
2921{
2922 wxRichTextAttr attr;
2923 attr.SetFlags(wxTEXT_ATTR_FONT_WEIGHT);
2924 attr.SetFontWeight(IsSelectionBold() ? wxNORMAL : wxBOLD);
2925
2926 if (HasSelection())
3e3a754f 2927 return SetStyleEx(GetSelectionRange(), attr, wxRICHTEXT_SETSTYLE_WITH_UNDO|wxRICHTEXT_SETSTYLE_OPTIMIZE|wxRICHTEXT_SETSTYLE_CHARACTERS_ONLY);
5d7836c4 2928 else
ab14c7aa 2929 SetAndShowDefaultStyle(attr);
5d7836c4
JS		 2930 return true;
2931}
2932
2933/// Apply italic to the selection
2934bool wxRichTextCtrl::ApplyItalicToSelection()
2935{
2936 wxRichTextAttr attr;
2937 attr.SetFlags(wxTEXT_ATTR_FONT_ITALIC);
2938 attr.SetFontStyle(IsSelectionItalics() ? wxNORMAL : wxITALIC);
2939
2940 if (HasSelection())
3e3a754f 2941 return SetStyleEx(GetSelectionRange(), attr, wxRICHTEXT_SETSTYLE_WITH_UNDO|wxRICHTEXT_SETSTYLE_OPTIMIZE|wxRICHTEXT_SETSTYLE_CHARACTERS_ONLY);
5d7836c4 2942 else
ab14c7aa 2943 SetAndShowDefaultStyle(attr);
5d7836c4
JS		 2944 return true;
2945}
2946
2947/// Apply underline to the selection
2948bool wxRichTextCtrl::ApplyUnderlineToSelection()
2949{
2950 wxRichTextAttr attr;
2951 attr.SetFlags(wxTEXT_ATTR_FONT_UNDERLINE);
4d551ad5 2952 attr.SetFontUnderlined(!IsSelectionUnderlined());
5d7836c4
JS		 2953
2954 if (HasSelection())
3e3a754f 2955 return SetStyleEx(GetSelectionRange(), attr, wxRICHTEXT_SETSTYLE_WITH_UNDO|wxRICHTEXT_SETSTYLE_OPTIMIZE|wxRICHTEXT_SETSTYLE_CHARACTERS_ONLY);
5d7836c4 2956 else
ab14c7aa 2957 SetAndShowDefaultStyle(attr);
5d7836c4
JS		 2958 return true;
2959}
2960
2961/// Is all of the selection aligned according to the specified flag?
3966a9f4 2962bool wxRichTextCtrl::IsSelectionAligned(wxTextAttrAlignment alignment)
5d7836c4 2963{
0ca07313 2964 wxRichTextRange range;
5d7836c4 2965 if (HasSelection())
a7ed48a5 2966 range = GetSelectionRange();
5d7836c4 2967 else
a7ed48a5 2968 range = wxRichTextRange(GetCaretPosition()+1, GetCaretPosition()+2);
0ca07313
JS		 2969
2970 wxRichTextAttr attr;
2971 attr.SetAlignment(alignment);
2972
2973 return HasParagraphAttributes(range, attr);
5d7836c4
JS		 2974}
2975
2976/// Apply alignment to the selection
2977bool wxRichTextCtrl::ApplyAlignmentToSelection(wxTextAttrAlignment alignment)
2978{
2979 wxRichTextAttr attr;
2980 attr.SetAlignment(alignment);
2981 if (HasSelection())
2982 return SetStyle(GetSelectionRange(), attr);
2983 else
2984 {
2985 wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(GetCaretPosition()+1);
2986 if (para)
3e3a754f 2987 return SetStyleEx(para->GetRange().FromInternal(), attr, wxRICHTEXT_SETSTYLE_WITH_UNDO|wxRICHTEXT_SETSTYLE_OPTIMIZE|wxRICHTEXT_SETSTYLE_PARAGRAPHS_ONLY);
5d7836c4
JS		 2988 }
2989 return true;
2990}
2991
ab14c7aa 2992/// Apply a named style to the selection
1807a1f3 2993bool wxRichTextCtrl::ApplyStyle(wxRichTextStyleDefinition* def)
ab14c7aa
JS		 2994{
2995 // Flags are defined within each definition, so only certain
2996 // attributes are applied.
336d8ae9 2997 wxRichTextAttr attr(GetStyleSheet() ? def->GetStyleMergedWithBase(GetStyleSheet()) : def->GetStyle());
1807a1f3 2998
3e3a754f 2999 int flags = wxRICHTEXT_SETSTYLE_WITH_UNDO|wxRICHTEXT_SETSTYLE_OPTIMIZE;
ab14c7aa 3000
38f833b1
JS		 3001 if (def->IsKindOf(CLASSINFO(wxRichTextListStyleDefinition)))
3002 {
3003 flags |= wxRICHTEXT_SETSTYLE_PARAGRAPHS_ONLY;
41a85215 3004
38f833b1 3005 wxRichTextRange range;
41a85215 3006
38f833b1
JS		 3007 if (HasSelection())
3008 range = GetSelectionRange();
3009 else
3010 {
41a85215 3011 long pos = GetAdjustedCaretPosition(GetCaretPosition());
38f833b1
JS		 3012 range = wxRichTextRange(pos, pos+1);
3013 }
41a85215
WS		 3014
3015 return SetListStyle(range, (wxRichTextListStyleDefinition*) def, flags);
3016 }
3017
ab14c7aa
JS		 3018 // Make sure the attr has the style name
3019 if (def->IsKindOf(CLASSINFO(wxRichTextParagraphStyleDefinition)))
3e3a754f 3020 {
ab14c7aa 3021 attr.SetParagraphStyleName(def->GetName());
1807a1f3 3022
3e3a754f 3023 // If applying a paragraph style, we only want the paragraph nodes to adopt these
38f833b1 3024 // attributes, and not the leaf nodes. This will allow the content (e.g. text)
3e3a754f
JS		 3025 // to change its style independently.
3026 flags |= wxRICHTEXT_SETSTYLE_PARAGRAPHS_ONLY;
3027 }
ab14c7aa
JS		 3028 else
3029 attr.SetCharacterStyleName(def->GetName());
3030
3031 if (HasSelection())
1807a1f3 3032 return SetStyleEx(GetSelectionRange(), attr, flags);
ab14c7aa 3033 else
1807a1f3 3034 {
ab14c7aa 3035 SetAndShowDefaultStyle(attr);
1807a1f3
JS		 3036 return true;
3037 }
ab14c7aa
JS		 3038}
3039
fe5aa22c
JS		 3040/// Apply the style sheet to the buffer, for example if the styles have changed.
3041bool wxRichTextCtrl::ApplyStyleSheet(wxRichTextStyleSheet* styleSheet)
3042{
3043 if (!styleSheet)
3044 styleSheet = GetBuffer().GetStyleSheet();
3045 if (!styleSheet)
3046 return false;
3047
3048 if (GetBuffer().ApplyStyleSheet(styleSheet))
3049 {
3050 GetBuffer().Invalidate(wxRICHTEXT_ALL);
3051 Refresh(false);
3052 return true;
3053 }
3054 else
3055 return false;
3056}
3057
5d7836c4
JS		 3058/// Sets the default style to the style under the cursor
3059bool wxRichTextCtrl::SetDefaultStyleToCursorStyle()
3060{
3061 wxTextAttrEx attr;
3062 attr.SetFlags(wxTEXT_ATTR_CHARACTER);
3063
ab14c7aa
JS		 3064 // If at the start of a paragraph, use the next position.
3065 long pos = GetAdjustedCaretPosition(GetCaretPosition());
3066
fe5aa22c 3067 if (GetUncombinedStyle(pos, attr))
5d7836c4
JS		 3068 {
3069 SetDefaultStyle(attr);
3070 return true;
3071 }
41e155b4
WS		 3072
3073 return false;
5d7836c4
JS		 3074}
3075
4d551ad5
JS		 3076/// Returns the first visible position in the current view
3077long wxRichTextCtrl::GetFirstVisiblePosition() const
3078{
3079 wxRichTextLine* line = GetBuffer().GetLineAtYPosition(GetLogicalPoint(wxPoint(0, 0)).y);
3080 if (line)
3081 return line->GetAbsoluteRange().GetStart();
3082 else
3083 return 0;
3084}
3085
ea160b2e
JS		 3086/// Get the first visible point in the window
3087wxPoint wxRichTextCtrl::GetFirstVisiblePoint() const
3088{
3089 int ppuX, ppuY;
3090 int startXUnits, startYUnits;
3091
3092 GetScrollPixelsPerUnit(& ppuX, & ppuY);
3093 GetViewStart(& startXUnits, & startYUnits);
3094
3095 return wxPoint(startXUnits * ppuX, startYUnits * ppuY);
3096}
3097
ab14c7aa
JS		 3098/// The adjusted caret position is the character position adjusted to take
3099/// into account whether we're at the start of a paragraph, in which case
3100/// style information should be taken from the next position, not current one.
3101long wxRichTextCtrl::GetAdjustedCaretPosition(long caretPos) const
3102{
3103 wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(caretPos+1);
3104
3105 if (para && (caretPos+1 == para->GetRange().GetStart()))
3106 caretPos ++;
3107 return caretPos;
3108}
3109
96c9f0f6
JS		 3110/// Get/set the selection range in character positions. -1, -1 means no selection.
3111/// The range is in API convention, i.e. a single character selection is denoted
3112/// by (n, n+1)
3113wxRichTextRange wxRichTextCtrl::GetSelectionRange() const
3114{
3115 wxRichTextRange range = GetInternalSelectionRange();
3116 if (range != wxRichTextRange(-2,-2) && range != wxRichTextRange(-1,-1))
3117 range.SetEnd(range.GetEnd() + 1);
3118 return range;
3119}
3120
3121void wxRichTextCtrl::SetSelectionRange(const wxRichTextRange& range)
3122{
3123 wxRichTextRange range1(range);
3124 if (range1 != wxRichTextRange(-2,-2) && range1 != wxRichTextRange(-1,-1) )
3125 range1.SetEnd(range1.GetEnd() - 1);
3126
3127 wxASSERT( range1.GetStart() > range1.GetEnd() );
fe5aa22c 3128
96c9f0f6
JS		 3129 SetInternalSelectionRange(range1);
3130}
3131
38f833b1
JS		 3132/// Set list style
3133bool wxRichTextCtrl::SetListStyle(const wxRichTextRange& range, wxRichTextListStyleDefinition* def, int flags, int startFrom, int specifiedLevel)
3134{
3135 return GetBuffer().SetListStyle(range.ToInternal(), def, flags, startFrom, specifiedLevel);
3136}
3137
3138bool wxRichTextCtrl::SetListStyle(const wxRichTextRange& range, const wxString& defName, int flags, int startFrom, int specifiedLevel)
3139{
3140 return GetBuffer().SetListStyle(range.ToInternal(), defName, flags, startFrom, specifiedLevel);
3141}
3142
3143/// Clear list for given range
3144bool wxRichTextCtrl::ClearListStyle(const wxRichTextRange& range, int flags)
3145{
3146 return GetBuffer().ClearListStyle(range.ToInternal(), flags);
3147}
3148
3149/// Number/renumber any list elements in the given range
3150bool wxRichTextCtrl::NumberList(const wxRichTextRange& range, wxRichTextListStyleDefinition* def, int flags, int startFrom, int specifiedLevel)
3151{
41a85215 3152 return GetBuffer().NumberList(range.ToInternal(), def, flags, startFrom, specifiedLevel);
38f833b1
JS		 3153}
3154
3155bool wxRichTextCtrl::NumberList(const wxRichTextRange& range, const wxString& defName, int flags, int startFrom, int specifiedLevel)
3156{
41a85215 3157 return GetBuffer().NumberList(range.ToInternal(), defName, flags, startFrom, specifiedLevel);
38f833b1
JS		 3158}
3159
3160/// Promote the list items within the given range. promoteBy can be a positive or negative number, e.g. 1 or -1
3161bool wxRichTextCtrl::PromoteList(int promoteBy, const wxRichTextRange& range, wxRichTextListStyleDefinition* def, int flags, int specifiedLevel)
3162{
3163 return GetBuffer().PromoteList(promoteBy, range.ToInternal(), def, flags, specifiedLevel);
3164}
3165
3166bool wxRichTextCtrl::PromoteList(int promoteBy, const wxRichTextRange& range, const wxString& defName, int flags, int specifiedLevel)
3167{
3168 return GetBuffer().PromoteList(promoteBy, range.ToInternal(), defName, flags, specifiedLevel);
3169}
3170
12cc29c5
JS		 3171/// Deletes the content in the given range
3172bool wxRichTextCtrl::Delete(const wxRichTextRange& range)
3173{
3174 return GetBuffer().DeleteRangeWithUndo(range.ToInternal(), this);
3175}
3176
dadd4f55
JS		 3177const wxArrayString& wxRichTextCtrl::GetAvailableFontNames()
3178{
3179 if (sm_availableFontNames.GetCount() == 0)
3180 {
3181 sm_availableFontNames = wxFontEnumerator::GetFacenames();
3182 sm_availableFontNames.Sort();
3183 }
3184 return sm_availableFontNames;
3185}
3186
3187void wxRichTextCtrl::ClearAvailableFontNames()
3188{
3189 sm_availableFontNames.Clear();
3190}
3191
5d7836c4
JS		 3192#endif
3193 // wxUSE_RICHTEXT
wxWidgets (Impactor)