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