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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)
cd8ba0d9 57DEFINE_EVENT_TYPE(wxEVT_COMMAND_RICHTEXT_BUFFER_RESET)
5912d19e 58
5d7836c4 59IMPLEMENT_CLASS( wxRichTextCtrl, wxControl )
5d7836c4
JS		 60
61IMPLEMENT_CLASS( wxRichTextEvent, wxNotifyEvent )
62
5d7836c4 63BEGIN_EVENT_TABLE( wxRichTextCtrl, wxControl )
5d7836c4
JS		 64 EVT_PAINT(wxRichTextCtrl::OnPaint)
65 EVT_ERASE_BACKGROUND(wxRichTextCtrl::OnEraseBackground)
4d551ad5 66 EVT_IDLE(wxRichTextCtrl::OnIdle)
c59f6793 67 EVT_SCROLLWIN(wxRichTextCtrl::OnScroll)
5d7836c4
JS		 68 EVT_LEFT_DOWN(wxRichTextCtrl::OnLeftClick)
69 EVT_MOTION(wxRichTextCtrl::OnMoveMouse)
70 EVT_LEFT_UP(wxRichTextCtrl::OnLeftUp)
71 EVT_RIGHT_DOWN(wxRichTextCtrl::OnRightClick)
72 EVT_MIDDLE_DOWN(wxRichTextCtrl::OnMiddleClick)
73 EVT_LEFT_DCLICK(wxRichTextCtrl::OnLeftDClick)
74 EVT_CHAR(wxRichTextCtrl::OnChar)
75 EVT_SIZE(wxRichTextCtrl::OnSize)
76 EVT_SET_FOCUS(wxRichTextCtrl::OnSetFocus)
77 EVT_KILL_FOCUS(wxRichTextCtrl::OnKillFocus)
61f84e24 78 EVT_MOUSE_CAPTURE_LOST(wxRichTextCtrl::OnCaptureLost)
5d7836c4 79 EVT_CONTEXT_MENU(wxRichTextCtrl::OnContextMenu)
52170c5b 80 EVT_SYS_COLOUR_CHANGED(wxRichTextCtrl::OnSysColourChanged)
5d7836c4
JS		 81
82 EVT_MENU(wxID_UNDO, wxRichTextCtrl::OnUndo)
83 EVT_UPDATE_UI(wxID_UNDO, wxRichTextCtrl::OnUpdateUndo)
84
85 EVT_MENU(wxID_REDO, wxRichTextCtrl::OnRedo)
86 EVT_UPDATE_UI(wxID_REDO, wxRichTextCtrl::OnUpdateRedo)
87
88 EVT_MENU(wxID_COPY, wxRichTextCtrl::OnCopy)
89 EVT_UPDATE_UI(wxID_COPY, wxRichTextCtrl::OnUpdateCopy)
90
91 EVT_MENU(wxID_PASTE, wxRichTextCtrl::OnPaste)
92 EVT_UPDATE_UI(wxID_PASTE, wxRichTextCtrl::OnUpdatePaste)
93
94 EVT_MENU(wxID_CUT, wxRichTextCtrl::OnCut)
95 EVT_UPDATE_UI(wxID_CUT, wxRichTextCtrl::OnUpdateCut)
96
97 EVT_MENU(wxID_CLEAR, wxRichTextCtrl::OnClear)
98 EVT_UPDATE_UI(wxID_CLEAR, wxRichTextCtrl::OnUpdateClear)
99
100 EVT_MENU(wxID_SELECTALL, wxRichTextCtrl::OnSelectAll)
101 EVT_UPDATE_UI(wxID_SELECTALL, wxRichTextCtrl::OnUpdateSelectAll)
102END_EVENT_TABLE()
103
104/*!
105 * wxRichTextCtrl
106 */
107
dadd4f55
JS		 108wxArrayString wxRichTextCtrl::sm_availableFontNames;
109
5d7836c4 110wxRichTextCtrl::wxRichTextCtrl()
343ae70d 111 : wxScrollHelper(this)
5d7836c4
JS		 112{
113 Init();
114}
115
343ae70d
VZ		 116wxRichTextCtrl::wxRichTextCtrl(wxWindow* parent,
117 wxWindowID id,
118 const wxString& value,
119 const wxPoint& pos,
120 const wxSize& size,
4e8d9558
JS		 121 long style,
122 const wxValidator& validator,
123 const wxString& name)
343ae70d 124 : wxScrollHelper(this)
5d7836c4
JS		 125{
126 Init();
4e8d9558 127 Create(parent, id, value, pos, size, style, validator, name);
5d7836c4
JS		 128}
129
130/// Creation
4e8d9558
JS		 131bool wxRichTextCtrl::Create( wxWindow* parent, wxWindowID id, const wxString& value, const wxPoint& pos, const wxSize& size, long style,
132 const wxValidator& validator, const wxString& name)
5d7836c4 133{
0ec1179b
VZ		 134 if (!wxControl::Create(parent, id, pos, size,
135 style|wxFULL_REPAINT_ON_RESIZE,
136 validator, name))
5d7836c4 137 return false;
5d7836c4
JS		 138
139 if (!GetFont().Ok())
140 {
141 SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
142 }
7fe8059f 143
dadd4f55
JS		 144 if (style & wxTE_READONLY)
145 SetEditable(false);
146
42688aea 147 // The base attributes must all have default values
44cc96a8 148 wxTextAttr attributes;
5d7836c4 149 attributes.SetFont(GetFont());
79f955ec 150 attributes.SetTextColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT));
5d7836c4 151 attributes.SetAlignment(wxTEXT_ALIGNMENT_LEFT);
3e3a754f
JS		 152 attributes.SetLineSpacing(10);
153 attributes.SetParagraphSpacingAfter(10);
154 attributes.SetParagraphSpacingBefore(0);
42688aea
JS		 155 attributes.SetTextEffects(0);
156 attributes.SetTextEffectFlags(wxTEXT_ATTR_EFFECT_STRIKETHROUGH|wxTEXT_ATTR_EFFECT_CAPITALS);
d2d0adc7 157
5d7836c4
JS		 158 SetBasicStyle(attributes);
159
fe5aa22c
JS		 160 // The default attributes will be merged with base attributes, so
161 // can be empty to begin with
44cc96a8 162 wxTextAttr defaultAttributes;
fe5aa22c
JS		 163 SetDefaultStyle(defaultAttributes);
164
79f955ec 165 SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW));
5d7836c4
JS		 166 SetBackgroundStyle(wxBG_STYLE_CUSTOM);
167
cd8ba0d9
JS		 168 GetBuffer().Reset();
169 GetBuffer().SetRichTextCtrl(this);
170
171 SetCaret(new wxCaret(this, wxRICHTEXT_DEFAULT_CARET_WIDTH, 16));
172 GetCaret()->Show();
173
7fe8059f 174 // Tell the sizers to use the given or best size
170acdc9 175 SetInitialSize(size);
7fe8059f 176
3e3a754f 177#if wxRICHTEXT_BUFFERED_PAINTING
5d7836c4
JS		 178 // Create a buffer
179 RecreateBuffer(size);
3e3a754f 180#endif
5d7836c4 181
d2d0adc7
JS		 182 m_textCursor = wxCursor(wxCURSOR_IBEAM);
183 m_urlCursor = wxCursor(wxCURSOR_HAND);
184
185 SetCursor(m_textCursor);
61399247 186
27e20452
JS		 187 if (!value.IsEmpty())
188 SetValue(value);
7fe8059f 189
d2d0adc7
JS		 190 GetBuffer().AddEventHandler(this);
191
5d7836c4
JS		 192 return true;
193}
194
195wxRichTextCtrl::~wxRichTextCtrl()
196{
d2d0adc7 197 GetBuffer().RemoveEventHandler(this);
88bee7e6 198
5d7836c4
JS		 199 delete m_contextMenu;
200}
201
202/// Member initialisation
203void wxRichTextCtrl::Init()
204{
5d7836c4
JS		 205 m_contextMenu = NULL;
206 m_caret = NULL;
207 m_caretPosition = -1;
208 m_selectionRange.SetRange(-2, -2);
209 m_selectionAnchor = -2;
210 m_editable = true;
211 m_caretAtLineStart = false;
212 m_dragging = false;
4d551ad5
JS		 213 m_fullLayoutRequired = false;
214 m_fullLayoutTime = 0;
215 m_fullLayoutSavedPosition = 0;
216 m_delayedLayoutThreshold = wxRICHTEXT_DEFAULT_DELAYED_LAYOUT_THRESHOLD;
ab14c7aa 217 m_caretPositionForDefaultStyle = -2;
5d7836c4
JS		 218}
219
17808a75 220void wxRichTextCtrl::DoThaw()
5d7836c4 221{
17808a75
VZ		 222 if (GetBuffer().GetDirty())
223 LayoutContent();
224 else
225 SetupScrollbars();
226 Refresh(false);
5d7836c4
JS		 227}
228
229/// Clear all text
230void wxRichTextCtrl::Clear()
231{
85d8909b 232 m_buffer.ResetAndClearCommands();
5d7836c4
JS		 233 m_buffer.SetDirty(true);
234 m_caretPosition = -1;
ab14c7aa 235 m_caretPositionForDefaultStyle = -2;
5d7836c4
JS		 236 m_caretAtLineStart = false;
237 m_selectionRange.SetRange(-2, -2);
238
495a248e
JS		 239 Scroll(0,0);
240
17808a75 241 if (!IsFrozen())
5d7836c4 242 {
cecf8eee 243 LayoutContent();
76bcd815 244 Refresh(false);
5d7836c4 245 }
0ec1179b
VZ		 246
247 wxTextCtrl::SendTextUpdatedEvent(this);
5d7836c4
JS		 248}
249
250/// Painting
251void wxRichTextCtrl::OnPaint(wxPaintEvent& WXUNUSED(event))
252{
ea160b2e 253 if (GetCaret() && GetCaret()->IsVisible())
d2142335
JS		 254 GetCaret()->Hide();
255
5d7836c4 256 {
3e3a754f 257#if wxRICHTEXT_BUFFERED_PAINTING
c59f6793 258 wxBufferedPaintDC dc(this, m_bufferBitmap);
3e3a754f
JS		 259#else
260 wxPaintDC dc(this);
261#endif
41e155b4 262
17808a75 263 if (IsFrozen())
c59f6793 264 return;
41e155b4 265
17808a75
VZ		 266 PrepareDC(dc);
267
c59f6793 268 dc.SetFont(GetFont());
41e155b4 269
c59f6793
JS		 270 // Paint the background
271 PaintBackground(dc);
41e155b4 272
ea160b2e
JS		 273 // wxRect drawingArea(GetLogicalPoint(wxPoint(0, 0)), GetClientSize());
274
275 wxRect drawingArea(GetUpdateRegion().GetBox());
276 drawingArea.SetPosition(GetLogicalPoint(drawingArea.GetPosition()));
277
c59f6793
JS		 278 wxRect availableSpace(GetClientSize());
279 if (GetBuffer().GetDirty())
280 {
281 GetBuffer().Layout(dc, availableSpace, wxRICHTEXT_FIXED_WIDTH|wxRICHTEXT_VARIABLE_HEIGHT);
282 GetBuffer().SetDirty(false);
283 SetupScrollbars();
284 }
41e155b4 285
96c9f0f6 286 GetBuffer().Draw(dc, GetBuffer().GetRange(), GetInternalSelectionRange(), drawingArea, 0 /* descent */, 0 /* flags */);
5d7836c4 287 }
d2142335 288
ea160b2e 289 if (GetCaret() && !GetCaret()->IsVisible())
d2142335
JS		 290 GetCaret()->Show();
291
7383cf9d 292 PositionCaret();
5d7836c4
JS		 293}
294
295// Empty implementation, to prevent flicker
296void wxRichTextCtrl::OnEraseBackground(wxEraseEvent& WXUNUSED(event))
297{
298}
299
300void wxRichTextCtrl::OnSetFocus(wxFocusEvent& WXUNUSED(event))
301{
ea160b2e
JS		 302 if (GetCaret())
303 {
304 if (!GetCaret()->IsVisible())
305 GetCaret()->Show();
306 PositionCaret();
307 }
c59f6793 308
ea160b2e
JS		 309 // if (!IsFrozen())
310 // Refresh(false);
5d7836c4
JS		 311}
312
313void wxRichTextCtrl::OnKillFocus(wxFocusEvent& WXUNUSED(event))
314{
ea160b2e
JS		 315 if (GetCaret() && GetCaret()->IsVisible())
316 GetCaret()->Hide();
c59f6793 317
ea160b2e
JS		 318 // if (!IsFrozen())
319 // Refresh(false);
5d7836c4
JS		 320}
321
61f84e24
JS		 322void wxRichTextCtrl::OnCaptureLost(wxMouseCaptureLostEvent& WXUNUSED(event))
323{
88bee7e6 324 m_dragging = false;
61f84e24
JS		 325}
326
5d7836c4
JS		 327/// Left-click
328void wxRichTextCtrl::OnLeftClick(wxMouseEvent& event)
329{
330 SetFocus();
331
332 wxClientDC dc(this);
333 PrepareDC(dc);
334 dc.SetFont(GetFont());
7fe8059f 335
5d7836c4
JS		 336 long position = 0;
337 int hit = GetBuffer().HitTest(dc, event.GetLogicalPosition(dc), position);
338
339 if (hit != wxRICHTEXT_HITTEST_NONE)
340 {
341 m_dragStart = event.GetLogicalPosition(dc);
342 m_dragging = true;
343 CaptureMouse();
344
5d7836c4
JS		 345 bool caretAtLineStart = false;
346
347 if (hit & wxRICHTEXT_HITTEST_BEFORE)
348 {
349 // If we're at the start of a line (but not first in para)
350 // then we should keep the caret showing at the start of the line
351 // by showing the m_caretAtLineStart flag.
352 wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(position);
353 wxRichTextLine* line = GetBuffer().GetLineAtPosition(position);
354
1e967276 355 if (line && para && line->GetAbsoluteRange().GetStart() == position && para->GetRange().GetStart() != position)
5d7836c4
JS		 356 caretAtLineStart = true;
357 position --;
358 }
359
f7222f4c
JS		 360 long oldCaretPos = m_caretPosition;
361
5d7836c4
JS		 362 MoveCaret(position, caretAtLineStart);
363 SetDefaultStyleToCursorStyle();
f7222f4c
JS		 364
365 if (event.ShiftDown())
366 {
367 bool extendSel = false;
368 if (m_selectionRange.GetStart() == -2)
369 extendSel = ExtendSelection(oldCaretPos, m_caretPosition, wxRICHTEXT_SHIFT_DOWN);
370 else
371 extendSel = ExtendSelection(m_caretPosition, m_caretPosition, wxRICHTEXT_SHIFT_DOWN);
372
373 if (extendSel)
374 Refresh(false);
375 }
376 else
377 SelectNone();
5d7836c4
JS		 378 }
379
380 event.Skip();
381}
382
383/// Left-up
d2d0adc7 384void wxRichTextCtrl::OnLeftUp(wxMouseEvent& event)
5d7836c4
JS		 385{
386 if (m_dragging)
387 {
388 m_dragging = false;
389 if (GetCapture() == this)
390 ReleaseMouse();
d2d0adc7
JS		 391
392 // See if we clicked on a URL
393 wxClientDC dc(this);
394 PrepareDC(dc);
395 dc.SetFont(GetFont());
396
397 long position = 0;
398 wxPoint logicalPt = event.GetLogicalPosition(dc);
399 int hit = GetBuffer().HitTest(dc, logicalPt, position);
88bee7e6 400
62381daa 401 if ((hit != wxRICHTEXT_HITTEST_NONE) && !(hit & wxRICHTEXT_HITTEST_OUTSIDE))
d2d0adc7 402 {
db6634e0
JS		 403 wxRichTextEvent cmdEvent(
404 wxEVT_COMMAND_RICHTEXT_LEFT_CLICK,
405 GetId());
406 cmdEvent.SetEventObject(this);
407 cmdEvent.SetPosition(m_caretPosition+1);
408
409 if (!GetEventHandler()->ProcessEvent(cmdEvent))
d2d0adc7 410 {
44cc96a8 411 wxTextAttr attr;
db6634e0 412 if (GetStyle(position, attr))
d2d0adc7 413 {
db6634e0 414 if (attr.HasFlag(wxTEXT_ATTR_URL))
d2d0adc7 415 {
db6634e0
JS		 416 wxString urlTarget = attr.GetURL();
417 if (!urlTarget.IsEmpty())
d2d0adc7 418 {
db6634e0 419 wxMouseEvent mouseEvent(event);
1a75935d 420
db6634e0
JS		 421 long startPos = 0, endPos = 0;
422 wxRichTextObject* obj = GetBuffer().GetLeafObjectAtPosition(position);
423 if (obj)
424 {
425 startPos = obj->GetRange().GetStart();
426 endPos = obj->GetRange().GetEnd();
427 }
1a75935d 428
db6634e0
JS		 429 wxTextUrlEvent urlEvent(GetId(), mouseEvent, startPos, endPos);
430 InitCommandEvent(urlEvent);
1a75935d 431
db6634e0 432 urlEvent.SetString(urlTarget);
1a75935d 433
db6634e0 434 GetEventHandler()->ProcessEvent(urlEvent);
88bee7e6 435 }
d2d0adc7
JS		 436 }
437 }
438 }
439 }
5d7836c4
JS		 440 }
441}
442
443/// Left-click
444void wxRichTextCtrl::OnMoveMouse(wxMouseEvent& event)
445{
5d7836c4
JS		 446 wxClientDC dc(this);
447 PrepareDC(dc);
448 dc.SetFont(GetFont());
7fe8059f 449
5d7836c4
JS		 450 long position = 0;
451 wxPoint logicalPt = event.GetLogicalPosition(dc);
452 int hit = GetBuffer().HitTest(dc, logicalPt, position);
88bee7e6 453
d2d0adc7 454 // See if we need to change the cursor
88bee7e6 455
d2d0adc7 456 {
efb2c52f 457 if (hit != wxRICHTEXT_HITTEST_NONE && !(hit & wxRICHTEXT_HITTEST_OUTSIDE))
d2d0adc7 458 {
44cc96a8 459 wxTextAttr attr;
d2d0adc7
JS		 460 if (GetStyle(position, attr))
461 {
462 if (attr.HasFlag(wxTEXT_ATTR_URL))
463 {
e4ef49c7 464 SetCursor(m_urlCursor);
d2d0adc7
JS		 465 }
466 else if (!attr.HasFlag(wxTEXT_ATTR_URL))
467 {
e4ef49c7 468 SetCursor(m_textCursor);
d2d0adc7
JS		 469 }
470 }
471 }
f262b25c
JS		 472 else
473 SetCursor(m_textCursor);
d2d0adc7
JS		 474 }
475
476 if (!event.Dragging())
477 {
478 event.Skip();
479 return;
480 }
5d7836c4
JS		 481
482 if (m_dragging && hit != wxRICHTEXT_HITTEST_NONE)
483 {
484 // TODO: test closeness
485
486 bool caretAtLineStart = false;
487
488 if (hit & wxRICHTEXT_HITTEST_BEFORE)
489 {
490 // If we're at the start of a line (but not first in para)
491 // then we should keep the caret showing at the start of the line
492 // by showing the m_caretAtLineStart flag.
493 wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(position);
494 wxRichTextLine* line = GetBuffer().GetLineAtPosition(position);
495
1e967276 496 if (line && para && line->GetAbsoluteRange().GetStart() == position && para->GetRange().GetStart() != position)
5d7836c4
JS		 497 caretAtLineStart = true;
498 position --;
499 }
500
501 if (m_caretPosition != position)
502 {
503 bool extendSel = ExtendSelection(m_caretPosition, position, wxRICHTEXT_SHIFT_DOWN);
7fe8059f 504
5d7836c4
JS		 505 MoveCaret(position, caretAtLineStart);
506 SetDefaultStyleToCursorStyle();
7fe8059f 507
5d7836c4 508 if (extendSel)
76bcd815 509 Refresh(false);
5d7836c4
JS		 510 }
511 }
512}
513
514/// Right-click
52170c5b 515void wxRichTextCtrl::OnRightClick(wxMouseEvent& event)
5d7836c4
JS		 516{
517 SetFocus();
db6634e0
JS		 518
519 wxRichTextEvent cmdEvent(
520 wxEVT_COMMAND_RICHTEXT_RIGHT_CLICK,
521 GetId());
522 cmdEvent.SetEventObject(this);
523 cmdEvent.SetPosition(m_caretPosition+1);
1a75935d 524
52170c5b
JS		 525 if (!GetEventHandler()->ProcessEvent(cmdEvent))
526 event.Skip();
5d7836c4
JS		 527}
528
529/// Left-double-click
db6634e0 530void wxRichTextCtrl::OnLeftDClick(wxMouseEvent& WXUNUSED(event))
5d7836c4 531{
db6634e0
JS		 532 wxRichTextEvent cmdEvent(
533 wxEVT_COMMAND_RICHTEXT_LEFT_DCLICK,
534 GetId());
535 cmdEvent.SetEventObject(this);
536 cmdEvent.SetPosition(m_caretPosition+1);
1a75935d 537
db6634e0
JS		 538 if (!GetEventHandler()->ProcessEvent(cmdEvent))
539 {
540 SelectWord(GetCaretPosition()+1);
541 }
5d7836c4
JS		 542}
543
544/// Middle-click
545void wxRichTextCtrl::OnMiddleClick(wxMouseEvent& event)
546{
db6634e0
JS		 547 wxRichTextEvent cmdEvent(
548 wxEVT_COMMAND_RICHTEXT_MIDDLE_CLICK,
549 GetId());
550 cmdEvent.SetEventObject(this);
551 cmdEvent.SetPosition(m_caretPosition+1);
1a75935d 552
db6634e0
JS		 553 if (!GetEventHandler()->ProcessEvent(cmdEvent))
554 event.Skip();
5d7836c4
JS		 555}
556
557/// Key press
558void wxRichTextCtrl::OnChar(wxKeyEvent& event)
559{
560 int flags = 0;
3e3a754f 561 if (event.CmdDown())
5d7836c4
JS		 562 flags |= wxRICHTEXT_CTRL_DOWN;
563 if (event.ShiftDown())
564 flags |= wxRICHTEXT_SHIFT_DOWN;
565 if (event.AltDown())
566 flags |= wxRICHTEXT_ALT_DOWN;
567
568 if (event.GetKeyCode() == WXK_LEFT ||
569 event.GetKeyCode() == WXK_RIGHT ||
570 event.GetKeyCode() == WXK_UP ||
571 event.GetKeyCode() == WXK_DOWN ||
572 event.GetKeyCode() == WXK_HOME ||
573 event.GetKeyCode() == WXK_PAGEUP ||
574 event.GetKeyCode() == WXK_PAGEDOWN ||
3e3a754f
JS		 575 event.GetKeyCode() == WXK_END ||
576
577 event.GetKeyCode() == WXK_NUMPAD_LEFT ||
578 event.GetKeyCode() == WXK_NUMPAD_RIGHT ||
579 event.GetKeyCode() == WXK_NUMPAD_UP ||
580 event.GetKeyCode() == WXK_NUMPAD_DOWN ||
581 event.GetKeyCode() == WXK_NUMPAD_HOME ||
582 event.GetKeyCode() == WXK_NUMPAD_PAGEUP ||
583 event.GetKeyCode() == WXK_NUMPAD_PAGEDOWN ||
584 event.GetKeyCode() == WXK_NUMPAD_END)
5d7836c4 585 {
0bab774b 586 KeyboardNavigate(event.GetKeyCode(), flags);
99257cbe 587 return;
5d7836c4 588 }
99257cbe
VZ		 589
590 // all the other keys modify the controls contents which shouldn't be
591 // possible if we're read-only
592 if ( !IsEditable() )
593 {
594 event.Skip();
595 return;
596 }
597
598 if (event.GetKeyCode() == WXK_RETURN)
5d7836c4
JS		 599 {
600 BeginBatchUndo(_("Insert Text"));
601
602 long newPos = m_caretPosition;
603
604 DeleteSelectedContent(& newPos);
605
ff76711f
JS		 606 if (event.ShiftDown())
607 {
608 wxString text;
609 text = wxRichTextLineBreakChar;
610 GetBuffer().InsertTextWithUndo(newPos+1, text, this);
611 }
612 else
c025e094 613 GetBuffer().InsertNewlineWithUndo(newPos+1, this, wxRICHTEXT_INSERT_WITH_PREVIOUS_PARAGRAPH_STYLE|wxRICHTEXT_INSERT_INTERACTIVE);
ff76711f 614
d2d0adc7
JS		 615 EndBatchUndo();
616 SetDefaultStyleToCursorStyle();
617
618 ScrollIntoView(m_caretPosition, WXK_RIGHT);
5d7836c4
JS		 619
620 wxRichTextEvent cmdEvent(
621 wxEVT_COMMAND_RICHTEXT_RETURN,
622 GetId());
623 cmdEvent.SetEventObject(this);
624 cmdEvent.SetFlags(flags);
5912d19e
JS		 625 cmdEvent.SetPosition(newPos+1);
626
d2d0adc7
JS		 627 if (!GetEventHandler()->ProcessEvent(cmdEvent))
628 {
629 // Generate conventional event
630 wxCommandEvent textEvent(wxEVT_COMMAND_TEXT_ENTER, GetId());
631 InitCommandEvent(textEvent);
88bee7e6 632
d2d0adc7
JS		 633 GetEventHandler()->ProcessEvent(textEvent);
634 }
621ae374 635 Update();
5d7836c4
JS		 636 }
637 else if (event.GetKeyCode() == WXK_BACK)
638 {
639 BeginBatchUndo(_("Delete Text"));
88bee7e6 640
5d7836c4
JS		 641 // Submit range in character positions, which are greater than caret positions,
642 // so subtract 1 for deleted character and add 1 for conversion to character position.
643 if (m_caretPosition > -1 && !HasSelection())
644 {
62381daa
JS		 645 bool processed = false;
646 if (event.CmdDown())
647 {
648 long pos = wxRichTextCtrl::FindNextWordPosition(-1);
649 if (pos != -1 && (pos < m_caretPosition))
650 {
651 GetBuffer().DeleteRangeWithUndo(wxRichTextRange(pos+1, m_caretPosition), this);
652 processed = true;
653 }
654 }
655
656 if (!processed)
657 GetBuffer().DeleteRangeWithUndo(wxRichTextRange(m_caretPosition, m_caretPosition), this);
5d7836c4
JS		 658 }
659 else
660 DeleteSelectedContent();
661
662 EndBatchUndo();
663
5d7836c4
JS		 664 if (GetLastPosition() == -1)
665 {
666 GetBuffer().Reset();
667
668 m_caretPosition = -1;
669 PositionCaret();
670 SetDefaultStyleToCursorStyle();
671 }
672
f9ed2d16 673 ScrollIntoView(m_caretPosition, WXK_LEFT);
5912d19e
JS		 674
675 wxRichTextEvent cmdEvent(
676 wxEVT_COMMAND_RICHTEXT_DELETE,
677 GetId());
678 cmdEvent.SetEventObject(this);
679 cmdEvent.SetFlags(flags);
680 cmdEvent.SetPosition(m_caretPosition+1);
681 GetEventHandler()->ProcessEvent(cmdEvent);
682
621ae374 683 Update();
5d7836c4
JS		 684 }
685 else if (event.GetKeyCode() == WXK_DELETE)
686 {
687 BeginBatchUndo(_("Delete Text"));
688
689 // Submit range in character positions, which are greater than caret positions,
690 if (m_caretPosition < GetBuffer().GetRange().GetEnd()+1 && !HasSelection())
691 {
f52eff54 692 GetBuffer().DeleteRangeWithUndo(wxRichTextRange(m_caretPosition+1, m_caretPosition+1), this);
5d7836c4
JS		 693 }
694 else
695 DeleteSelectedContent();
696
697 EndBatchUndo();
698
5d7836c4
JS		 699 if (GetLastPosition() == -1)
700 {
701 GetBuffer().Reset();
702
703 m_caretPosition = -1;
704 PositionCaret();
705 SetDefaultStyleToCursorStyle();
706 }
5912d19e
JS		 707
708 wxRichTextEvent cmdEvent(
709 wxEVT_COMMAND_RICHTEXT_DELETE,
710 GetId());
711 cmdEvent.SetEventObject(this);
712 cmdEvent.SetFlags(flags);
713 cmdEvent.SetPosition(m_caretPosition+1);
714 GetEventHandler()->ProcessEvent(cmdEvent);
715
621ae374 716 Update();
5d7836c4
JS		 717 }
718 else
719 {
3e3a754f
JS		 720 long keycode = event.GetKeyCode();
721 switch ( keycode )
722 {
723 case WXK_ESCAPE:
3e3a754f
JS		 724 case WXK_DELETE:
725 case WXK_START:
726 case WXK_LBUTTON:
727 case WXK_RBUTTON:
728 case WXK_CANCEL:
729 case WXK_MBUTTON:
730 case WXK_CLEAR:
731 case WXK_SHIFT:
732 case WXK_ALT:
733 case WXK_CONTROL:
734 case WXK_MENU:
735 case WXK_PAUSE:
736 case WXK_CAPITAL:
737 case WXK_END:
738 case WXK_HOME:
739 case WXK_LEFT:
740 case WXK_UP:
741 case WXK_RIGHT:
742 case WXK_DOWN:
743 case WXK_SELECT:
744 case WXK_PRINT:
745 case WXK_EXECUTE:
746 case WXK_SNAPSHOT:
747 case WXK_INSERT:
748 case WXK_HELP:
749 case WXK_NUMPAD0:
750 case WXK_NUMPAD1:
751 case WXK_NUMPAD2:
752 case WXK_NUMPAD3:
753 case WXK_NUMPAD4:
754 case WXK_NUMPAD5:
755 case WXK_NUMPAD6:
756 case WXK_NUMPAD7:
757 case WXK_NUMPAD8:
758 case WXK_NUMPAD9:
759 case WXK_MULTIPLY:
760 case WXK_ADD:
761 case WXK_SEPARATOR:
762 case WXK_SUBTRACT:
763 case WXK_DECIMAL:
764 case WXK_DIVIDE:
765 case WXK_F1:
766 case WXK_F2:
767 case WXK_F3:
768 case WXK_F4:
769 case WXK_F5:
770 case WXK_F6:
771 case WXK_F7:
772 case WXK_F8:
773 case WXK_F9:
774 case WXK_F10:
775 case WXK_F11:
776 case WXK_F12:
777 case WXK_F13:
778 case WXK_F14:
779 case WXK_F15:
780 case WXK_F16:
781 case WXK_F17:
782 case WXK_F18:
783 case WXK_F19:
784 case WXK_F20:
785 case WXK_F21:
786 case WXK_F22:
787 case WXK_F23:
788 case WXK_F24:
789 case WXK_NUMLOCK:
790 case WXK_SCROLL:
791 case WXK_PAGEUP:
792 case WXK_PAGEDOWN:
793 case WXK_NUMPAD_SPACE:
794 case WXK_NUMPAD_TAB:
795 case WXK_NUMPAD_ENTER:
796 case WXK_NUMPAD_F1:
797 case WXK_NUMPAD_F2:
798 case WXK_NUMPAD_F3:
799 case WXK_NUMPAD_F4:
800 case WXK_NUMPAD_HOME:
801 case WXK_NUMPAD_LEFT:
802 case WXK_NUMPAD_UP:
803 case WXK_NUMPAD_RIGHT:
804 case WXK_NUMPAD_DOWN:
805 case WXK_NUMPAD_PAGEUP:
806 case WXK_NUMPAD_PAGEDOWN:
807 case WXK_NUMPAD_END:
808 case WXK_NUMPAD_BEGIN:
809 case WXK_NUMPAD_INSERT:
810 case WXK_NUMPAD_DELETE:
811 case WXK_NUMPAD_EQUAL:
812 case WXK_NUMPAD_MULTIPLY:
813 case WXK_NUMPAD_ADD:
814 case WXK_NUMPAD_SEPARATOR:
815 case WXK_NUMPAD_SUBTRACT:
816 case WXK_NUMPAD_DECIMAL:
88bee7e6 817 case WXK_WINDOWS_LEFT:
3e3a754f
JS		 818 {
819 event.Skip();
820 return;
821 }
1807a1f3 822
3e3a754f
JS		 823 default:
824 {
825 if (event.CmdDown() || event.AltDown())
826 {
827 event.Skip();
828 return;
829 }
41a85215 830
5912d19e
JS		 831 wxRichTextEvent cmdEvent(
832 wxEVT_COMMAND_RICHTEXT_CHARACTER,
833 GetId());
834 cmdEvent.SetEventObject(this);
835 cmdEvent.SetFlags(flags);
0b14a7bd
JS		 836#if wxUSE_UNICODE
837 cmdEvent.SetCharacter(event.GetUnicodeKey());
838#else
5912d19e 839 cmdEvent.SetCharacter((wxChar) keycode);
0b14a7bd 840#endif
5912d19e 841 cmdEvent.SetPosition(m_caretPosition+1);
88bee7e6 842
dadd4f55
JS		 843 if (keycode == wxT('\t'))
844 {
845 // See if we need to promote or demote the selection or paragraph at the cursor
846 // position, instead of inserting a tab.
847 long pos = GetAdjustedCaretPosition(GetCaretPosition());
848 wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(pos);
849 if (para && para->GetRange().GetStart() == pos && para->GetAttributes().HasListStyleName())
850 {
851 wxRichTextRange range;
852 if (HasSelection())
853 range = GetSelectionRange();
854 else
855 range = para->GetRange().FromInternal();
41a85215 856
dadd4f55
JS		 857 int promoteBy = event.ShiftDown() ? 1 : -1;
858
859 PromoteList(promoteBy, range, NULL);
d2d0adc7 860
5912d19e
JS		 861 GetEventHandler()->ProcessEvent(cmdEvent);
862
dadd4f55
JS		 863 return;
864 }
865 }
5d7836c4 866
3e3a754f 867 BeginBatchUndo(_("Insert Text"));
5d7836c4 868
3e3a754f
JS		 869 long newPos = m_caretPosition;
870 DeleteSelectedContent(& newPos);
5d7836c4 871
0b14a7bd
JS		 872#if wxUSE_UNICODE
873 wxString str = event.GetUnicodeKey();
874#else
3e3a754f 875 wxString str = (wxChar) event.GetKeyCode();
0b14a7bd 876#endif
523d2f14 877 GetBuffer().InsertTextWithUndo(newPos+1, str, this, 0);
5d7836c4 878
3e3a754f
JS		 879 EndBatchUndo();
880
881 SetDefaultStyleToCursorStyle();
882 ScrollIntoView(m_caretPosition, WXK_RIGHT);
88bee7e6 883
5912d19e
JS		 884 GetEventHandler()->ProcessEvent(cmdEvent);
885
621ae374 886 Update();
3e3a754f
JS		 887 }
888 }
5d7836c4 889 }
5d7836c4
JS		 890}
891
892/// Delete content if there is a selection, e.g. when pressing a key.
893bool wxRichTextCtrl::DeleteSelectedContent(long* newPos)
894{
895 if (HasSelection())
896 {
897 long pos = m_selectionRange.GetStart();
f52eff54 898 GetBuffer().DeleteRangeWithUndo(m_selectionRange, this);
5d7836c4
JS		 899 m_selectionRange.SetRange(-2, -2);
900
901 if (newPos)
902 *newPos = pos-1;
903 return true;
904 }
905 else
906 return false;
907}
908
909/// Keyboard navigation
910
911/*
912
913Left: left one character
914Right: right one character
915Up: up one line
916Down: down one line
917Ctrl-Left: left one word
918Ctrl-Right: right one word
919Ctrl-Up: previous paragraph start
920Ctrl-Down: next start of paragraph
921Home: start of line
922End: end of line
923Ctrl-Home: start of document
924Ctrl-End: end of document
925Page-Up: Up a screen
926Page-Down: Down a screen
927
928Maybe:
929
930Ctrl-Alt-PgUp: Start of window
931Ctrl-Alt-PgDn: End of window
932F8: Start selection mode
933Esc: End selection mode
934
935Adding Shift does the above but starts/extends selection.
936
937
938 */
939
0bab774b 940bool wxRichTextCtrl::KeyboardNavigate(int keyCode, int flags)
5d7836c4
JS		 941{
942 bool success = false;
5d7836c4 943
3e3a754f 944 if (keyCode == WXK_RIGHT || keyCode == WXK_NUMPAD_RIGHT)
5d7836c4
JS		 945 {
946 if (flags & wxRICHTEXT_CTRL_DOWN)
947 success = WordRight(1, flags);
948 else
949 success = MoveRight(1, flags);
950 }
3e3a754f 951 else if (keyCode == WXK_LEFT || keyCode == WXK_NUMPAD_LEFT)
5d7836c4
JS		 952 {
953 if (flags & wxRICHTEXT_CTRL_DOWN)
954 success = WordLeft(1, flags);
955 else
956 success = MoveLeft(1, flags);
957 }
3e3a754f 958 else if (keyCode == WXK_UP || keyCode == WXK_NUMPAD_UP)
5d7836c4
JS		 959 {
960 if (flags & wxRICHTEXT_CTRL_DOWN)
961 success = MoveToParagraphStart(flags);
962 else
963 success = MoveUp(1, flags);
964 }
3e3a754f 965 else if (keyCode == WXK_DOWN || keyCode == WXK_NUMPAD_DOWN)
5d7836c4
JS		 966 {
967 if (flags & wxRICHTEXT_CTRL_DOWN)
968 success = MoveToParagraphEnd(flags);
969 else
970 success = MoveDown(1, flags);
971 }
3e3a754f 972 else if (keyCode == WXK_PAGEUP || keyCode == WXK_NUMPAD_PAGEUP)
5d7836c4
JS		 973 {
974 success = PageUp(1, flags);
975 }
3e3a754f 976 else if (keyCode == WXK_PAGEDOWN || keyCode == WXK_NUMPAD_PAGEDOWN)
5d7836c4
JS		 977 {
978 success = PageDown(1, flags);
979 }
3e3a754f 980 else if (keyCode == WXK_HOME || keyCode == WXK_NUMPAD_HOME)
5d7836c4
JS		 981 {
982 if (flags & wxRICHTEXT_CTRL_DOWN)
983 success = MoveHome(flags);
984 else
985 success = MoveToLineStart(flags);
986 }
3e3a754f 987 else if (keyCode == WXK_END || keyCode == WXK_NUMPAD_END)
5d7836c4
JS		 988 {
989 if (flags & wxRICHTEXT_CTRL_DOWN)
990 success = MoveEnd(flags);
991 else
992 success = MoveToLineEnd(flags);
993 }
994
995 if (success)
996 {
997 ScrollIntoView(m_caretPosition, keyCode);
998 SetDefaultStyleToCursorStyle();
999 }
1000
5d7836c4
JS		 1001 return success;
1002}
1003
1004/// Extend the selection. Selections are in caret positions.
1005bool wxRichTextCtrl::ExtendSelection(long oldPos, long newPos, int flags)
1006{
1007 if (flags & wxRICHTEXT_SHIFT_DOWN)
1008 {
1009 // If not currently selecting, start selecting
1010 if (m_selectionRange.GetStart() == -2)
1011 {
1012 m_selectionAnchor = oldPos;
1013
1014 if (oldPos > newPos)
1015 m_selectionRange.SetRange(newPos+1, oldPos);
1016 else
1017 m_selectionRange.SetRange(oldPos+1, newPos);
1018 }
1019 else
1020 {
1021 // Always ensure that the selection range start is greater than
1022 // the end.
1023 if (newPos > m_selectionAnchor)
1024 m_selectionRange.SetRange(m_selectionAnchor+1, newPos);
1025 else
1026 m_selectionRange.SetRange(newPos+1, m_selectionAnchor);
1027 }
1028
1029 if (m_selectionRange.GetStart() > m_selectionRange.GetEnd())
1030 {
1031 wxLogDebug(wxT("Strange selection range"));
1032 }
7fe8059f 1033
5d7836c4
JS		 1034 return true;
1035 }
1036 else
1037 return false;
1038}
1039
1040/// Scroll into view, returning true if we scrolled.
1041/// This takes a _caret_ position.
1042bool wxRichTextCtrl::ScrollIntoView(long position, int keyCode)
1043{
1044 wxRichTextLine* line = GetVisibleLineForCaretPosition(position);
1045
1046 if (!line)
1047 return false;
1048
1049 int ppuX, ppuY;
1050 GetScrollPixelsPerUnit(& ppuX, & ppuY);
1051
3956d02a
JS		 1052 int startXUnits, startYUnits;
1053 GetViewStart(& startXUnits, & startYUnits);
1054 int startY = startYUnits * ppuY;
5d7836c4 1055
8d7eaf91 1056 int sx = 0, sy = 0;
5d7836c4 1057 GetVirtualSize(& sx, & sy);
3956d02a
JS		 1058 int sxUnits = 0;
1059 int syUnits = 0;
5d7836c4 1060 if (ppuY != 0)
3956d02a 1061 syUnits = sy/ppuY;
5d7836c4
JS		 1062
1063 wxRect rect = line->GetRect();
1064
1065 bool scrolled = false;
1066
1067 wxSize clientSize = GetClientSize();
1068
1069 // Going down
3e3a754f 1070 if (keyCode == WXK_DOWN || keyCode == WXK_NUMPAD_DOWN ||
ec36b155 1071 keyCode == WXK_RIGHT || keyCode == WXK_NUMPAD_RIGHT ||
3e3a754f
JS		 1072 keyCode == WXK_END || keyCode == WXK_NUMPAD_END ||
1073 keyCode == WXK_PAGEDOWN || keyCode == WXK_NUMPAD_PAGEDOWN)
5d7836c4
JS		 1074 {
1075 if ((rect.y + rect.height) > (clientSize.y + startY))
1076 {
1077 // Make it scroll so this item is at the bottom
1078 // of the window
1079 int y = rect.y - (clientSize.y - rect.height);
3956d02a 1080 int yUnits = (int) (0.5 + ((float) y)/(float) ppuY);
c59f6793 1081
3956d02a
JS		 1082 // If we're still off the screen, scroll another line down
1083 if ((rect.y + rect.height) > (clientSize.y + (yUnits*ppuY)))
1084 yUnits ++;
1085
1086 if (startYUnits != yUnits)
c59f6793 1087 {
3956d02a 1088 SetScrollbars(ppuX, ppuY, sxUnits, syUnits, 0, yUnits);
c59f6793
JS		 1089 scrolled = true;
1090 }
5d7836c4
JS		 1091 }
1092 else if (rect.y < startY)
1093 {
1094 // Make it scroll so this item is at the top
1095 // of the window
1096 int y = rect.y ;
3956d02a 1097 int yUnits = (int) (0.5 + ((float) y)/(float) ppuY);
c59f6793 1098
3956d02a 1099 if (startYUnits != yUnits)
c59f6793 1100 {
3956d02a 1101 SetScrollbars(ppuX, ppuY, sxUnits, syUnits, 0, yUnits);
c59f6793
JS		 1102 scrolled = true;
1103 }
5d7836c4 1104 }
5d7836c4
JS		 1105 }
1106 // Going up
3e3a754f
JS		 1107 else if (keyCode == WXK_UP || keyCode == WXK_NUMPAD_UP ||
1108 keyCode == WXK_LEFT || keyCode == WXK_NUMPAD_LEFT ||
1109 keyCode == WXK_HOME || keyCode == WXK_NUMPAD_HOME ||
1110 keyCode == WXK_PAGEUP || keyCode == WXK_NUMPAD_PAGEUP )
5d7836c4
JS		 1111 {
1112 if (rect.y < startY)
1113 {
1114 // Make it scroll so this item is at the top
1115 // of the window
1116 int y = rect.y ;
3956d02a 1117 int yUnits = (int) (0.5 + ((float) y)/(float) ppuY);
c59f6793 1118
3956d02a 1119 if (startYUnits != yUnits)
c59f6793 1120 {
3956d02a 1121 SetScrollbars(ppuX, ppuY, sxUnits, syUnits, 0, yUnits);
c59f6793
JS		 1122 scrolled = true;
1123 }
5d7836c4
JS		 1124 }
1125 else if ((rect.y + rect.height) > (clientSize.y + startY))
1126 {
1127 // Make it scroll so this item is at the bottom
1128 // of the window
1129 int y = rect.y - (clientSize.y - rect.height);
3956d02a
JS		 1130 int yUnits = (int) (0.5 + ((float) y)/(float) ppuY);
1131
1132 // If we're still off the screen, scroll another line down
1133 if ((rect.y + rect.height) > (clientSize.y + (yUnits*ppuY)))
1134 yUnits ++;
c59f6793 1135
3956d02a 1136 if (startYUnits != yUnits)
c59f6793 1137 {
3956d02a 1138 SetScrollbars(ppuX, ppuY, sxUnits, syUnits, 0, yUnits);
c59f6793
JS		 1139 scrolled = true;
1140 }
5d7836c4 1141 }
5d7836c4
JS		 1142 }
1143 PositionCaret();
1144
1145 return scrolled;
1146}
1147
1148/// Is the given position visible on the screen?
1149bool wxRichTextCtrl::IsPositionVisible(long pos) const
1150{
1151 wxRichTextLine* line = GetVisibleLineForCaretPosition(pos-1);
1152
1153 if (!line)
1154 return false;
1155
1156 int ppuX, ppuY;
1157 GetScrollPixelsPerUnit(& ppuX, & ppuY);
1158
1159 int startX, startY;
1160 GetViewStart(& startX, & startY);
1161 startX = 0;
1162 startY = startY * ppuY;
1163
5d7836c4 1164 wxRect rect = line->GetRect();
5d7836c4
JS		 1165 wxSize clientSize = GetClientSize();
1166
96d38a8a 1167 return (rect.GetBottom() > startY) && (rect.GetTop() < (startY + clientSize.y));
5d7836c4
JS		 1168}
1169
1170void wxRichTextCtrl::SetCaretPosition(long position, bool showAtLineStart)
1171{
1172 m_caretPosition = position;
1173 m_caretAtLineStart = showAtLineStart;
1174}
1175
1176/// Move caret one visual step forward: this may mean setting a flag
1177/// and keeping the same position if we're going from the end of one line
1178/// to the start of the next, which may be the exact same caret position.
1179void wxRichTextCtrl::MoveCaretForward(long oldPosition)
1180{
1181 wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(oldPosition);
1182
1183 // Only do the check if we're not at the end of the paragraph (where things work OK
1184 // anyway)
1185 if (para && (oldPosition != para->GetRange().GetEnd() - 1))
1186 {
1187 wxRichTextLine* line = GetBuffer().GetLineAtPosition(oldPosition);
1188
1189 if (line)
1190 {
1e967276
JS		 1191 wxRichTextRange lineRange = line->GetAbsoluteRange();
1192
5d7836c4
JS		 1193 // We're at the end of a line. See whether we need to
1194 // stay at the same actual caret position but change visual
1195 // position, or not.
1e967276 1196 if (oldPosition == lineRange.GetEnd())
5d7836c4
JS		 1197 {
1198 if (m_caretAtLineStart)
1199 {
1200 // We're already at the start of the line, so actually move on now.
1201 m_caretPosition = oldPosition + 1;
1202 m_caretAtLineStart = false;
1203 }
1204 else
1205 {
1206 // We're showing at the end of the line, so keep to
1207 // the same position but indicate that we're to show
1208 // at the start of the next line.
1209 m_caretPosition = oldPosition;
7fe8059f 1210 m_caretAtLineStart = true;
5d7836c4
JS		 1211 }
1212 SetDefaultStyleToCursorStyle();
1213 return;
1214 }
1215 }
1216 }
1217 m_caretPosition ++;
1218 SetDefaultStyleToCursorStyle();
1219}
1220
1221/// Move caret one visual step backward: this may mean setting a flag
1222/// and keeping the same position if we're going from the end of one line
1223/// to the start of the next, which may be the exact same caret position.
1224void wxRichTextCtrl::MoveCaretBack(long oldPosition)
1225{
1226 wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(oldPosition);
1227
1228 // Only do the check if we're not at the start of the paragraph (where things work OK
1229 // anyway)
1230 if (para && (oldPosition != para->GetRange().GetStart()))
1231 {
1232 wxRichTextLine* line = GetBuffer().GetLineAtPosition(oldPosition);
1233
1234 if (line)
1235 {
1e967276
JS		 1236 wxRichTextRange lineRange = line->GetAbsoluteRange();
1237
5d7836c4
JS		 1238 // We're at the start of a line. See whether we need to
1239 // stay at the same actual caret position but change visual
1240 // position, or not.
1e967276 1241 if (oldPosition == lineRange.GetStart())
5d7836c4
JS		 1242 {
1243 m_caretPosition = oldPosition-1;
1244 m_caretAtLineStart = true;
1245 return;
1246 }
1e967276 1247 else if (oldPosition == lineRange.GetEnd())
5d7836c4
JS		 1248 {
1249 if (m_caretAtLineStart)
1250 {
1251 // We're at the start of the line, so keep the same caret position
1252 // but clear the start-of-line flag.
1253 m_caretPosition = oldPosition;
1254 m_caretAtLineStart = false;
1255 }
1256 else
1257 {
1258 // We're showing at the end of the line, so go back
1259 // to the previous character position.
1260 m_caretPosition = oldPosition - 1;
1261 }
1262 SetDefaultStyleToCursorStyle();
1263 return;
1264 }
1265 }
1266 }
1267 m_caretPosition --;
1268 SetDefaultStyleToCursorStyle();
1269}
1270
1271/// Move right
1272bool wxRichTextCtrl::MoveRight(int noPositions, int flags)
1273{
1274 long endPos = GetBuffer().GetRange().GetEnd();
1275
1276 if (m_caretPosition + noPositions < endPos)
1277 {
1278 long oldPos = m_caretPosition;
1279 long newPos = m_caretPosition + noPositions;
1280
1281 bool extendSel = ExtendSelection(m_caretPosition, newPos, flags);
1282 if (!extendSel)
1283 SelectNone();
1284
1285 // Determine by looking at oldPos and m_caretPosition whether
1286 // we moved from the end of a line to the start of the next line, in which case
1287 // we want to adjust the caret position such that it is positioned at the
1288 // start of the next line, rather than jumping past the first character of the
1289 // line.
1290 if (noPositions == 1 && !extendSel)
1291 MoveCaretForward(oldPos);
1292 else
1293 SetCaretPosition(newPos);
1294
1295 PositionCaret();
1296 SetDefaultStyleToCursorStyle();
1297
c59f6793 1298 if (extendSel)
76bcd815 1299 Refresh(false);
5d7836c4
JS		 1300 return true;
1301 }
1302 else
7fe8059f 1303 return false;
5d7836c4
JS		 1304}
1305
1306/// Move left
1307bool wxRichTextCtrl::MoveLeft(int noPositions, int flags)
1308{
1309 long startPos = -1;
1310
1311 if (m_caretPosition > startPos - noPositions + 1)
1312 {
1313 long oldPos = m_caretPosition;
1314 long newPos = m_caretPosition - noPositions;
1315 bool extendSel = ExtendSelection(m_caretPosition, newPos, flags);
1316 if (!extendSel)
1317 SelectNone();
1318
1319 if (noPositions == 1 && !extendSel)
1320 MoveCaretBack(oldPos);
1321 else
1322 SetCaretPosition(newPos);
1323
1324 PositionCaret();
1325 SetDefaultStyleToCursorStyle();
1326
c59f6793 1327 if (extendSel)
76bcd815 1328 Refresh(false);
5d7836c4
JS		 1329 return true;
1330 }
1331 else
7fe8059f 1332 return false;
5d7836c4
JS		 1333}
1334
1335/// Move up
1336bool wxRichTextCtrl::MoveUp(int noLines, int flags)
1337{
1338 return MoveDown(- noLines, flags);
1339}
1340
1341/// Move up
1342bool wxRichTextCtrl::MoveDown(int noLines, int flags)
1343{
c59f6793
JS		 1344 if (!GetCaret())
1345 return false;
1346
5d7836c4
JS		 1347 long lineNumber = GetBuffer().GetVisibleLineNumber(m_caretPosition, true, m_caretAtLineStart);
1348 wxPoint pt = GetCaret()->GetPosition();
1349 long newLine = lineNumber + noLines;
1350
1351 if (lineNumber != -1)
1352 {
1353 if (noLines > 0)
1354 {
1355 long lastLine = GetBuffer().GetVisibleLineNumber(GetBuffer().GetRange().GetEnd());
1356
1357 if (newLine > lastLine)
1358 return false;
1359 }
1360 else
1361 {
1362 if (newLine < 0)
1363 return false;
1364 }
1365 }
1366
1367 wxRichTextLine* lineObj = GetBuffer().GetLineForVisibleLineNumber(newLine);
1368 if (lineObj)
7fe8059f
WS		 1369 {
1370 pt.y = lineObj->GetAbsolutePosition().y + 2;
5d7836c4
JS		 1371 }
1372 else
1373 return false;
1374
1375 long newPos = 0;
1376 wxClientDC dc(this);
1377 PrepareDC(dc);
1378 dc.SetFont(GetFont());
7fe8059f 1379
5d7836c4 1380 int hitTest = GetBuffer().HitTest(dc, pt, newPos);
7fe8059f 1381
5d7836c4
JS		 1382 if (hitTest != wxRICHTEXT_HITTEST_NONE)
1383 {
1384 // If end of previous line, and hitTest is wxRICHTEXT_HITTEST_BEFORE,
1385 // we want to be at the end of the last line but with m_caretAtLineStart set to true,
1386 // so we view the caret at the start of the line.
1387 bool caretLineStart = false;
f262b25c 1388 if (hitTest & wxRICHTEXT_HITTEST_BEFORE)
5d7836c4
JS		 1389 {
1390 wxRichTextLine* thisLine = GetBuffer().GetLineAtPosition(newPos-1);
1e967276
JS		 1391 wxRichTextRange lineRange;
1392 if (thisLine)
1393 lineRange = thisLine->GetAbsoluteRange();
1394
1395 if (thisLine && (newPos-1) == lineRange.GetEnd())
5d7836c4 1396 {
1e967276
JS		 1397 newPos --;
1398 caretLineStart = true;
5d7836c4
JS		 1399 }
1400 else
1401 {
1402 wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(newPos);
1403 if (para && para->GetRange().GetStart() == newPos)
1404 newPos --;
1405 }
1406 }
1407
1408 long newSelEnd = newPos;
1409
c59f6793
JS		 1410 bool extendSel = ExtendSelection(m_caretPosition, newSelEnd, flags);
1411 if (!extendSel)
5d7836c4
JS		 1412 SelectNone();
1413
1414 SetCaretPosition(newPos, caretLineStart);
1415 PositionCaret();
1416 SetDefaultStyleToCursorStyle();
1417
c59f6793 1418 if (extendSel)
76bcd815 1419 Refresh(false);
5d7836c4
JS		 1420 return true;
1421 }
41e155b4
WS		 1422
1423 return false;
5d7836c4
JS		 1424}
1425
1426/// Move to the end of the paragraph
1427bool wxRichTextCtrl::MoveToParagraphEnd(int flags)
1428{
1429 wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(m_caretPosition, true);
1430 if (para)
1431 {
1432 long newPos = para->GetRange().GetEnd() - 1;
c59f6793
JS		 1433 bool extendSel = ExtendSelection(m_caretPosition, newPos, flags);
1434 if (!extendSel)
5d7836c4
JS		 1435 SelectNone();
1436
1437 SetCaretPosition(newPos);
1438 PositionCaret();
1439 SetDefaultStyleToCursorStyle();
1440
c59f6793 1441 if (extendSel)
76bcd815 1442 Refresh(false);
5d7836c4
JS		 1443 return true;
1444 }
1445
1446 return false;
1447}
1448
1449/// Move to the start of the paragraph
1450bool wxRichTextCtrl::MoveToParagraphStart(int flags)
1451{
1452 wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(m_caretPosition, true);
1453 if (para)
1454 {
1455 long newPos = para->GetRange().GetStart() - 1;
c59f6793
JS		 1456 bool extendSel = ExtendSelection(m_caretPosition, newPos, flags);
1457 if (!extendSel)
5d7836c4
JS		 1458 SelectNone();
1459
1460 SetCaretPosition(newPos);
1461 PositionCaret();
1462 SetDefaultStyleToCursorStyle();
1463
c59f6793 1464 if (extendSel)
76bcd815 1465 Refresh(false);
5d7836c4
JS		 1466 return true;
1467 }
1468
1469 return false;
1470}
1471
1472/// Move to the end of the line
1473bool wxRichTextCtrl::MoveToLineEnd(int flags)
1474{
1475 wxRichTextLine* line = GetVisibleLineForCaretPosition(m_caretPosition);
1476
1477 if (line)
1478 {
1e967276
JS		 1479 wxRichTextRange lineRange = line->GetAbsoluteRange();
1480 long newPos = lineRange.GetEnd();
c59f6793
JS		 1481 bool extendSel = ExtendSelection(m_caretPosition, newPos, flags);
1482 if (!extendSel)
5d7836c4
JS		 1483 SelectNone();
1484
1485 SetCaretPosition(newPos);
1486 PositionCaret();
1487 SetDefaultStyleToCursorStyle();
1488
c59f6793 1489 if (extendSel)
76bcd815 1490 Refresh(false);
5d7836c4
JS		 1491 return true;
1492 }
1493
1494 return false;
1495}
1496
1497/// Move to the start of the line
1498bool wxRichTextCtrl::MoveToLineStart(int flags)
1499{
1500 wxRichTextLine* line = GetVisibleLineForCaretPosition(m_caretPosition);
1501 if (line)
1502 {
1e967276
JS		 1503 wxRichTextRange lineRange = line->GetAbsoluteRange();
1504 long newPos = lineRange.GetStart()-1;
5d7836c4 1505
c59f6793
JS		 1506 bool extendSel = ExtendSelection(m_caretPosition, newPos, flags);
1507 if (!extendSel)
5d7836c4
JS		 1508 SelectNone();
1509
1510 wxRichTextParagraph* para = GetBuffer().GetParagraphForLine(line);
1511
1e967276 1512 SetCaretPosition(newPos, para->GetRange().GetStart() != lineRange.GetStart());
5d7836c4
JS		 1513 PositionCaret();
1514 SetDefaultStyleToCursorStyle();
1515
c59f6793 1516 if (extendSel)
76bcd815 1517 Refresh(false);
5d7836c4
JS		 1518 return true;
1519 }
1520
1521 return false;
1522}
1523
1524/// Move to the start of the buffer
1525bool wxRichTextCtrl::MoveHome(int flags)
1526{
1527 if (m_caretPosition != -1)
1528 {
c59f6793
JS		 1529 bool extendSel = ExtendSelection(m_caretPosition, -1, flags);
1530 if (!extendSel)
5d7836c4
JS		 1531 SelectNone();
1532
1533 SetCaretPosition(-1);
1534 PositionCaret();
1535 SetDefaultStyleToCursorStyle();
1536
c59f6793 1537 if (extendSel)
76bcd815 1538 Refresh(false);
5d7836c4
JS		 1539 return true;
1540 }
1541 else
7fe8059f 1542 return false;
5d7836c4
JS		 1543}
1544
1545/// Move to the end of the buffer
1546bool wxRichTextCtrl::MoveEnd(int flags)
1547{
1548 long endPos = GetBuffer().GetRange().GetEnd()-1;
1549
1550 if (m_caretPosition != endPos)
1551 {
c59f6793
JS		 1552 bool extendSel = ExtendSelection(m_caretPosition, endPos, flags);
1553 if (!extendSel)
5d7836c4
JS		 1554 SelectNone();
1555
1556 SetCaretPosition(endPos);
1557 PositionCaret();
1558 SetDefaultStyleToCursorStyle();
1559
c59f6793 1560 if (extendSel)
76bcd815 1561 Refresh(false);
5d7836c4
JS		 1562 return true;
1563 }
1564 else
7fe8059f 1565 return false;
5d7836c4
JS		 1566}
1567
1568/// Move noPages pages up
1569bool wxRichTextCtrl::PageUp(int noPages, int flags)
1570{
1571 return PageDown(- noPages, flags);
1572}
1573
1574/// Move noPages pages down
1575bool wxRichTextCtrl::PageDown(int noPages, int flags)
1576{
1577 // Calculate which line occurs noPages * screen height further down.
1578 wxRichTextLine* line = GetVisibleLineForCaretPosition(m_caretPosition);
1579 if (line)
1580 {
1581 wxSize clientSize = GetClientSize();
1582 int newY = line->GetAbsolutePosition().y + noPages*clientSize.y;
1583
1584 wxRichTextLine* newLine = GetBuffer().GetLineAtYPosition(newY);
1585 if (newLine)
1586 {
1e967276
JS		 1587 wxRichTextRange lineRange = newLine->GetAbsoluteRange();
1588 long pos = lineRange.GetStart()-1;
5d7836c4
JS		 1589 if (pos != m_caretPosition)
1590 {
1591 wxRichTextParagraph* para = GetBuffer().GetParagraphForLine(newLine);
1592
c59f6793
JS		 1593 bool extendSel = ExtendSelection(m_caretPosition, pos, flags);
1594 if (!extendSel)
5d7836c4
JS		 1595 SelectNone();
1596
1e967276 1597 SetCaretPosition(pos, para->GetRange().GetStart() != lineRange.GetStart());
5d7836c4
JS		 1598 PositionCaret();
1599 SetDefaultStyleToCursorStyle();
1600
c59f6793 1601 if (extendSel)
76bcd815 1602 Refresh(false);
5d7836c4
JS		 1603 return true;
1604 }
1605 }
1606 }
1607
1608 return false;
1609}
1610
0871b343
JS		 1611static bool wxRichTextCtrlIsWhitespace(const wxString& str)
1612{
1613 return str == wxT(" ") || str == wxT("\t");
1614}
1615
5d7836c4
JS		 1616// Finds the caret position for the next word
1617long wxRichTextCtrl::FindNextWordPosition(int direction) const
7fe8059f 1618{
5d7836c4
JS		 1619 long endPos = GetBuffer().GetRange().GetEnd();
1620
1621 if (direction > 0)
1622 {
1623 long i = m_caretPosition+1+direction; // +1 for conversion to character pos
7fe8059f 1624
5d7836c4
JS		 1625 // First skip current text to space
1626 while (i < endPos && i > -1)
1627 {
1628 // i is in character, not caret positions
1629 wxString text = GetBuffer().GetTextForRange(wxRichTextRange(i, i));
0871b343
JS		 1630 wxRichTextLine* line = GetBuffer().GetLineAtPosition(i, false);
1631 if (line && (i == line->GetAbsoluteRange().GetEnd()))
1632 {
1633 break;
1634 }
1635 else if (!wxRichTextCtrlIsWhitespace(text) && !text.empty())
5d7836c4
JS		 1636 i += direction;
1637 else
1638 {
1639 break;
1640 }
1641 }
1642 while (i < endPos && i > -1)
1643 {
1644 // i is in character, not caret positions
1645 wxString text = GetBuffer().GetTextForRange(wxRichTextRange(i, i));
0871b343
JS		 1646 wxRichTextLine* line = GetBuffer().GetLineAtPosition(i, false);
1647 if (line && (i == line->GetAbsoluteRange().GetEnd()))
1648 return wxMax(-1, i);
1649
7fe8059f 1650 if (text.empty()) // End of paragraph, or maybe an image
5d7836c4 1651 return wxMax(-1, i - 1);
0871b343 1652 else if (wxRichTextCtrlIsWhitespace(text) || text.empty())
5d7836c4
JS		 1653 i += direction;
1654 else
1655 {
1656 // Convert to caret position
1657 return wxMax(-1, i - 1);
1658 }
1659 }
1660 if (i >= endPos)
1661 return endPos-1;
1662 return i-1;
1663 }
1664 else
1665 {
1666 long i = m_caretPosition;
1667
1668 // First skip white 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
1675 if (text.empty() || (line && (i == line->GetAbsoluteRange().GetStart()))) // End of paragraph, or maybe an image
5d7836c4 1676 break;
0871b343 1677 else if (wxRichTextCtrlIsWhitespace(text) || text.empty())
5d7836c4
JS		 1678 i += direction;
1679 else
1680 break;
1681 }
1682 // Next skip current text to space
1683 while (i < endPos && i > -1)
1684 {
1685 // i is in character, not caret positions
1686 wxString text = GetBuffer().GetTextForRange(wxRichTextRange(i, i));
0871b343
JS		 1687 wxRichTextLine* line = GetBuffer().GetLineAtPosition(i, false);
1688 if (line && line->GetAbsoluteRange().GetStart() == i)
1689 return i-1;
1690
1691 if (!wxRichTextCtrlIsWhitespace(text) /* && !text.empty() */)
5d7836c4
JS		 1692 i += direction;
1693 else
1694 {
1695 return i;
5d7836c4
JS		 1696 }
1697 }
1698 if (i < -1)
1699 return -1;
1700 return i;
1701 }
1702}
1703
1704/// Move n words left
1705bool wxRichTextCtrl::WordLeft(int WXUNUSED(n), int flags)
1706{
1707 long pos = FindNextWordPosition(-1);
1708 if (pos != m_caretPosition)
1709 {
1710 wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(pos, true);
7fe8059f 1711
c59f6793
JS		 1712 bool extendSel = ExtendSelection(m_caretPosition, pos, flags);
1713 if (!extendSel)
5d7836c4 1714 SelectNone();
7fe8059f 1715
5d7836c4
JS		 1716 SetCaretPosition(pos, para->GetRange().GetStart() != pos);
1717 PositionCaret();
1718 SetDefaultStyleToCursorStyle();
1719
c59f6793 1720 if (extendSel)
76bcd815 1721 Refresh(false);
5d7836c4
JS		 1722 return true;
1723 }
7fe8059f 1724
5d7836c4
JS		 1725 return false;
1726}
1727
1728/// Move n words right
1729bool wxRichTextCtrl::WordRight(int WXUNUSED(n), int flags)
1730{
1731 long pos = FindNextWordPosition(1);
1732 if (pos != m_caretPosition)
1733 {
1734 wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(pos, true);
7fe8059f 1735
c59f6793
JS		 1736 bool extendSel = ExtendSelection(m_caretPosition, pos, flags);
1737 if (!extendSel)
5d7836c4 1738 SelectNone();
7fe8059f 1739
5d7836c4
JS		 1740 SetCaretPosition(pos, para->GetRange().GetStart() != pos);
1741 PositionCaret();
1742 SetDefaultStyleToCursorStyle();
1743
c59f6793 1744 if (extendSel)
76bcd815 1745 Refresh(false);
5d7836c4
JS		 1746 return true;
1747 }
7fe8059f 1748
5d7836c4
JS		 1749 return false;
1750}
1751
1752/// Sizing
1753void wxRichTextCtrl::OnSize(wxSizeEvent& event)
1754{
4d551ad5
JS		 1755 // Only do sizing optimization for large buffers
1756 if (GetBuffer().GetRange().GetEnd() > m_delayedLayoutThreshold)
1757 {
1758 m_fullLayoutRequired = true;
1759 m_fullLayoutTime = wxGetLocalTimeMillis();
1760 m_fullLayoutSavedPosition = GetFirstVisiblePosition();
2f36e8dc 1761 LayoutContent(true /* onlyVisibleRect */);
4d551ad5
JS		 1762 }
1763 else
1764 GetBuffer().Invalidate(wxRICHTEXT_ALL);
7fe8059f 1765
3e3a754f 1766#if wxRICHTEXT_BUFFERED_PAINTING
5d7836c4 1767 RecreateBuffer();
3e3a754f 1768#endif
5d7836c4
JS		 1769
1770 event.Skip();
1771}
1772
4d551ad5
JS		 1773
1774/// Idle-time processing
1775void wxRichTextCtrl::OnIdle(wxIdleEvent& event)
1776{
1777 const int layoutInterval = wxRICHTEXT_DEFAULT_LAYOUT_INTERVAL;
1778
1779 if (m_fullLayoutRequired && (wxGetLocalTimeMillis() > (m_fullLayoutTime + layoutInterval)))
1780 {
1781 m_fullLayoutRequired = false;
1782 m_fullLayoutTime = 0;
1783 GetBuffer().Invalidate(wxRICHTEXT_ALL);
1784 ShowPosition(m_fullLayoutSavedPosition);
76bcd815 1785 Refresh(false);
4d551ad5 1786 }
ab14c7aa
JS		 1787
1788 if (m_caretPositionForDefaultStyle != -2)
1789 {
1790 // If the caret position has changed, no longer reflect the default style
1791 // in the UI.
1792 if (GetCaretPosition() != m_caretPositionForDefaultStyle)
1793 m_caretPositionForDefaultStyle = -2;
1794 }
1795
4d551ad5
JS		 1796 event.Skip();
1797}
1798
c59f6793
JS		 1799/// Scrolling
1800void wxRichTextCtrl::OnScroll(wxScrollWinEvent& event)
1801{
1802 // Not used
1803 event.Skip();
1804}
1805
5d7836c4 1806/// Set up scrollbars, e.g. after a resize
169adfa9 1807void wxRichTextCtrl::SetupScrollbars(bool atTop)
5d7836c4 1808{
17808a75 1809 if (IsFrozen())
5d7836c4
JS		 1810 return;
1811
1812 if (GetBuffer().IsEmpty())
1813 {
1814 SetScrollbars(0, 0, 0, 0, 0, 0);
1815 return;
1816 }
1817
1818 // TODO: reimplement scrolling so we scroll by line, not by fixed number
1819 // of pixels. See e.g. wxVScrolledWindow for ideas.
3956d02a 1820 int pixelsPerUnit = 5;
5d7836c4
JS		 1821 wxSize clientSize = GetClientSize();
1822
1823 int maxHeight = GetBuffer().GetCachedSize().y;
1824
3956d02a
JS		 1825 // Round up so we have at least maxHeight pixels
1826 int unitsY = (int) (((float)maxHeight/(float)pixelsPerUnit) + 0.5);
5d7836c4 1827
169adfa9
JS		 1828 int startX = 0, startY = 0;
1829 if (!atTop)
1830 GetViewStart(& startX, & startY);
7fe8059f 1831
5d7836c4 1832 int maxPositionX = 0; // wxMax(sz.x - clientSize.x, 0);
3956d02a 1833 int maxPositionY = (int) ((((float)(wxMax((unitsY*pixelsPerUnit) - clientSize.y, 0)))/((float)pixelsPerUnit)) + 0.5);
7fe8059f 1834
5d7836c4
JS		 1835 // Move to previous scroll position if
1836 // possible
1837 SetScrollbars(0, pixelsPerUnit,
1838 0, unitsY,
1839 wxMin(maxPositionX, startX), wxMin(maxPositionY, startY));
1840}
1841
1842/// Paint the background
1843void wxRichTextCtrl::PaintBackground(wxDC& dc)
1844{
1845 wxColour backgroundColour = GetBackgroundColour();
1846 if (!backgroundColour.Ok())
1847 backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
1848
1849 // Clear the background
1850 dc.SetBrush(wxBrush(backgroundColour));
1851 dc.SetPen(*wxTRANSPARENT_PEN);
7fe8059f 1852 wxRect windowRect(GetClientSize());
5d7836c4
JS		 1853 windowRect.x -= 2; windowRect.y -= 2;
1854 windowRect.width += 4; windowRect.height += 4;
7fe8059f 1855
5d7836c4
JS		 1856 // We need to shift the rectangle to take into account
1857 // scrolling. Converting device to logical coordinates.
1858 CalcUnscrolledPosition(windowRect.x, windowRect.y, & windowRect.x, & windowRect.y);
1859 dc.DrawRectangle(windowRect);
1860}
1861
3e3a754f 1862#if wxRICHTEXT_BUFFERED_PAINTING
5d7836c4
JS		 1863/// Recreate buffer bitmap if necessary
1864bool wxRichTextCtrl::RecreateBuffer(const wxSize& size)
1865{
1866 wxSize sz = size;
1867 if (sz == wxDefaultSize)
1868 sz = GetClientSize();
7fe8059f 1869
5d7836c4
JS		 1870 if (sz.x < 1 || sz.y < 1)
1871 return false;
7fe8059f 1872
5d7836c4
JS		 1873 if (!m_bufferBitmap.Ok() || m_bufferBitmap.GetWidth() < sz.x || m_bufferBitmap.GetHeight() < sz.y)
1874 m_bufferBitmap = wxBitmap(sz.x, sz.y);
1875 return m_bufferBitmap.Ok();
1876}
3e3a754f 1877#endif
5d7836c4
JS		 1878
1879// ----------------------------------------------------------------------------
1880// file IO functions
1881// ----------------------------------------------------------------------------
1882
3306aec1
JS		 1883bool wxRichTextCtrl::DoLoadFile(const wxString& filename, int fileType)
1884{
1885 bool success = GetBuffer().LoadFile(filename, fileType);
5d7836c4
JS		 1886 if (success)
1887 m_filename = filename;
1888
1889 DiscardEdits();
1890 SetInsertionPoint(0);
2f36e8dc 1891 LayoutContent();
5d7836c4 1892 PositionCaret();
169adfa9 1893 SetupScrollbars(true);
76bcd815 1894 Refresh(false);
0ec1179b 1895 wxTextCtrl::SendTextUpdatedEvent(this);
5d7836c4
JS		 1896
1897 if (success)
1898 return true;
1899 else
1900 {
1901 wxLogError(_("File couldn't be loaded."));
7fe8059f 1902
5d7836c4
JS		 1903 return false;
1904 }
1905}
1906
3306aec1 1907bool wxRichTextCtrl::DoSaveFile(const wxString& filename, int fileType)
5d7836c4 1908{
3306aec1 1909 if (GetBuffer().SaveFile(filename, fileType))
5d7836c4 1910 {
3306aec1 1911 m_filename = filename;
5d7836c4
JS		 1912
1913 DiscardEdits();
1914
1915 return true;
5d7836c4
JS		 1916 }
1917
1918 wxLogError(_("The text couldn't be saved."));
1919
1920 return false;
1921}
1922
1923// ----------------------------------------------------------------------------
1924// wxRichTextCtrl specific functionality
1925// ----------------------------------------------------------------------------
1926
1927/// Add a new paragraph of text to the end of the buffer
1928wxRichTextRange wxRichTextCtrl::AddParagraph(const wxString& text)
1929{
62381daa
JS		 1930 wxRichTextRange range = GetBuffer().AddParagraph(text);
1931 LayoutContent();
1932 return range;
5d7836c4
JS		 1933}
1934
1935/// Add an image
1936wxRichTextRange wxRichTextCtrl::AddImage(const wxImage& image)
1937{
62381daa
JS		 1938 wxRichTextRange range = GetBuffer().AddImage(image);
1939 LayoutContent();
1940 return range;
5d7836c4
JS		 1941}
1942
1943// ----------------------------------------------------------------------------
1944// selection and ranges
1945// ----------------------------------------------------------------------------
1946
1947void wxRichTextCtrl::SelectAll()
1948{
96c9f0f6 1949 SetSelection(0, GetLastPosition()+1);
5d7836c4
JS		 1950 m_selectionAnchor = -1;
1951}
1952
1953/// Select none
1954void wxRichTextCtrl::SelectNone()
1955{
c59f6793 1956 if (!(GetSelectionRange() == wxRichTextRange(-2, -2)))
c1aec196
JS		 1957 {
1958 Refresh(false);
1959 m_selectionRange = wxRichTextRange(-2, -2);
1960 }
5d7836c4
JS		 1961 m_selectionAnchor = -2;
1962}
1963
0ca07313
JS		 1964static bool wxIsWordDelimiter(const wxString& text)
1965{
1c07e924 1966 return !text.IsEmpty() && !wxIsalnum(text[0]);
0ca07313
JS		 1967}
1968
1969/// Select the word at the given character position
1970bool wxRichTextCtrl::SelectWord(long position)
1971{
1972 if (position < 0 || position > GetBuffer().GetRange().GetEnd())
1973 return false;
1807a1f3 1974
0ca07313
JS		 1975 wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(position);
1976 if (!para)
1977 return false;
1978
62381daa
JS		 1979 if (position == para->GetRange().GetEnd())
1980 position --;
1981
0ca07313
JS		 1982 long positionStart = position;
1983 long positionEnd = position;
1807a1f3 1984
0ca07313
JS		 1985 for (positionStart = position; positionStart >= para->GetRange().GetStart(); positionStart --)
1986 {
1987 wxString text = GetBuffer().GetTextForRange(wxRichTextRange(positionStart, positionStart));
1988 if (wxIsWordDelimiter(text))
1989 {
1990 positionStart ++;
1991 break;
1992 }
1993 }
1994 if (positionStart < para->GetRange().GetStart())
1995 positionStart = para->GetRange().GetStart();
1807a1f3 1996
0ca07313
JS		 1997 for (positionEnd = position; positionEnd < para->GetRange().GetEnd(); positionEnd ++)
1998 {
1999 wxString text = GetBuffer().GetTextForRange(wxRichTextRange(positionEnd, positionEnd));
2000 if (wxIsWordDelimiter(text))
2001 {
2002 positionEnd --;
2003 break;
2004 }
2005 }
2006 if (positionEnd >= para->GetRange().GetEnd())
2007 positionEnd = para->GetRange().GetEnd();
1807a1f3 2008
62381daa
JS		 2009 if (positionEnd < positionStart)
2010 return false;
2011
0ca07313
JS		 2012 SetSelection(positionStart, positionEnd+1);
2013
2014 if (positionStart >= 0)
2015 {
2016 MoveCaret(positionStart-1, true);
1807a1f3 2017 SetDefaultStyleToCursorStyle();
0ca07313
JS		 2018 }
2019
2020 return true;
2021}
2022
5d7836c4
JS		 2023wxString wxRichTextCtrl::GetStringSelection() const
2024{
2025 long from, to;
2026 GetSelection(&from, &to);
2027
2028 return GetRange(from, to);
2029}
2030
5d7836c4
JS		 2031// ----------------------------------------------------------------------------
2032// hit testing
2033// ----------------------------------------------------------------------------
2034
2035wxTextCtrlHitTestResult
2036wxRichTextCtrl::HitTest(const wxPoint& pt, wxTextCoord *x, wxTextCoord *y) const
2037{
2038 // implement in terms of the other overload as the native ports typically
2039 // can get the position and not (x, y) pair directly (although wxUniv
2040 // directly gets x and y -- and so overrides this method as well)
2041 long pos;
2042 wxTextCtrlHitTestResult rc = HitTest(pt, &pos);
2043
2044 if ( rc != wxTE_HT_UNKNOWN )
2045 {
2046 PositionToXY(pos, x, y);
2047 }
2048
2049 return rc;
2050}
2051
2052wxTextCtrlHitTestResult
2053wxRichTextCtrl::HitTest(const wxPoint& pt,
2054 long * pos) const
2055{
2056 wxClientDC dc((wxRichTextCtrl*) this);
2057 ((wxRichTextCtrl*)this)->PrepareDC(dc);
61399247 2058
563d25ba
JS		 2059 // Buffer uses logical position (relative to start of buffer)
2060 // so convert
2061 wxPoint pt2 = GetLogicalPoint(pt);
5d7836c4 2062
563d25ba 2063 int hit = ((wxRichTextCtrl*)this)->GetBuffer().HitTest(dc, pt2, *pos);
41e155b4 2064
f262b25c
JS		 2065 if ((hit & wxRICHTEXT_HITTEST_BEFORE) && (hit & wxRICHTEXT_HITTEST_OUTSIDE))
2066 return wxTE_HT_BEFORE;
2067 else if ((hit & wxRICHTEXT_HITTEST_AFTER) && (hit & wxRICHTEXT_HITTEST_OUTSIDE))
2068 return wxTE_HT_BEYOND;
25d6eb3a 2069 else if (hit & (wxRICHTEXT_HITTEST_BEFORE|wxRICHTEXT_HITTEST_AFTER))
f262b25c 2070 return wxTE_HT_ON_TEXT;
41e155b4
WS		 2071
2072 return wxTE_HT_UNKNOWN;
5d7836c4
JS		 2073}
2074
2075// ----------------------------------------------------------------------------
2076// set/get the controls text
2077// ----------------------------------------------------------------------------
2078
2079wxString wxRichTextCtrl::GetValue() const
2080{
2081 return GetBuffer().GetText();
2082}
2083
2084wxString wxRichTextCtrl::GetRange(long from, long to) const
2085{
96c9f0f6
JS		 2086 // Public API for range is different from internals
2087 return GetBuffer().GetTextForRange(wxRichTextRange(from, to-1));
5d7836c4
JS		 2088}
2089
343ae70d 2090void wxRichTextCtrl::DoSetValue(const wxString& value, int flags)
5d7836c4
JS		 2091{
2092 Clear();
2093
1a75935d 2094 if (!value.IsEmpty())
5d7836c4 2095 {
1a75935d
JS		 2096 // Remove empty paragraph
2097 GetBuffer().Clear();
343ae70d 2098 DoWriteText(value);
5d7836c4
JS		 2099
2100 // for compatibility, don't move the cursor when doing SetValue()
2101 SetInsertionPoint(0);
2102 }
1a75935d 2103 else
5d7836c4 2104 {
1a75935d
JS		 2105 // still send an event for consistency
2106 if (flags & SetValue_SendEvent)
0ec1179b 2107 wxTextCtrl::SendTextUpdatedEvent(this);
5d7836c4 2108 }
5d7836c4
JS		 2109 DiscardEdits();
2110}
2111
2112void wxRichTextCtrl::WriteText(const wxString& value)
2113{
2114 DoWriteText(value);
2115}
2116
343ae70d 2117void wxRichTextCtrl::DoWriteText(const wxString& value, int flags)
5d7836c4 2118{
0ca07313 2119 wxString valueUnix = wxTextFile::Translate(value, wxTextFileType_Unix);
fe5aa22c 2120
33dddf58 2121 GetBuffer().InsertTextWithUndo(m_caretPosition+1, valueUnix, this, wxRICHTEXT_INSERT_WITH_PREVIOUS_PARAGRAPH_STYLE);
343ae70d
VZ		 2122
2123 if ( flags & SetValue_SendEvent )
0ec1179b 2124 wxTextCtrl::SendTextUpdatedEvent(this);
5d7836c4
JS		 2125}
2126
2127void wxRichTextCtrl::AppendText(const wxString& text)
2128{
2129 SetInsertionPointEnd();
2130
2131 WriteText(text);
2132}
2133
2134/// Write an image at the current insertion point
2135bool wxRichTextCtrl::WriteImage(const wxImage& image, int bitmapType)
2136{
2137 wxRichTextImageBlock imageBlock;
2138
2139 wxImage image2 = image;
2140 if (imageBlock.MakeImageBlock(image2, bitmapType))
2141 return WriteImage(imageBlock);
41e155b4
WS		 2142
2143 return false;
5d7836c4
JS		 2144}
2145
2146bool wxRichTextCtrl::WriteImage(const wxString& filename, int bitmapType)
2147{
2148 wxRichTextImageBlock imageBlock;
2149
2150 wxImage image;
2151 if (imageBlock.MakeImageBlock(filename, bitmapType, image, false))
2152 return WriteImage(imageBlock);
41e155b4
WS		 2153
2154 return false;
5d7836c4
JS		 2155}
2156
2157bool wxRichTextCtrl::WriteImage(const wxRichTextImageBlock& imageBlock)
2158{
2159 return GetBuffer().InsertImageWithUndo(m_caretPosition+1, imageBlock, this);
2160}
2161
2162bool wxRichTextCtrl::WriteImage(const wxBitmap& bitmap, int bitmapType)
2163{
2164 if (bitmap.Ok())
2165 {
2166 wxRichTextImageBlock imageBlock;
7fe8059f 2167
5d7836c4
JS		 2168 wxImage image = bitmap.ConvertToImage();
2169 if (image.Ok() && imageBlock.MakeImageBlock(image, bitmapType))
2170 return WriteImage(imageBlock);
5d7836c4 2171 }
41e155b4 2172
5d7836c4
JS		 2173 return false;
2174}
2175
2176/// Insert a newline (actually paragraph) at the current insertion point.
2177bool wxRichTextCtrl::Newline()
2178{
2179 return GetBuffer().InsertNewlineWithUndo(m_caretPosition+1, this);
2180}
2181
ff76711f
JS		 2182/// Insert a line break at the current insertion point.
2183bool wxRichTextCtrl::LineBreak()
2184{
2185 wxString text;
2186 text = wxRichTextLineBreakChar;
2187 return GetBuffer().InsertTextWithUndo(m_caretPosition+1, text, this);
2188}
5d7836c4
JS		 2189
2190// ----------------------------------------------------------------------------
2191// Clipboard operations
2192// ----------------------------------------------------------------------------
2193
2194void wxRichTextCtrl::Copy()
2195{
2196 if (CanCopy())
2197 {
fe5aa22c 2198 wxRichTextRange range = GetInternalSelectionRange();
5d7836c4
JS		 2199 GetBuffer().CopyToClipboard(range);
2200 }
2201}
2202
2203void wxRichTextCtrl::Cut()
2204{
2205 if (CanCut())
2206 {
fe5aa22c 2207 wxRichTextRange range = GetInternalSelectionRange();
5d7836c4
JS		 2208 GetBuffer().CopyToClipboard(range);
2209
2210 DeleteSelectedContent();
2f36e8dc 2211 LayoutContent();
76bcd815 2212 Refresh(false);
5d7836c4
JS		 2213 }
2214}
2215
2216void wxRichTextCtrl::Paste()
2217{
2218 if (CanPaste())
2219 {
2220 BeginBatchUndo(_("Paste"));
7fe8059f 2221
5d7836c4
JS		 2222 long newPos = m_caretPosition;
2223 DeleteSelectedContent(& newPos);
7fe8059f 2224
5d7836c4
JS		 2225 GetBuffer().PasteFromClipboard(newPos);
2226
2227 EndBatchUndo();
2228 }
2229}
2230
2231void wxRichTextCtrl::DeleteSelection()
2232{
2233 if (CanDeleteSelection())
2234 {
2235 DeleteSelectedContent();
2236 }
2237}
2238
2239bool wxRichTextCtrl::HasSelection() const
2240{
2241 return m_selectionRange.GetStart() != -2 && m_selectionRange.GetEnd() != -2;
2242}
2243
2244bool wxRichTextCtrl::CanCopy() const
2245{
2246 // Can copy if there's a selection
2247 return HasSelection();
2248}
2249
2250bool wxRichTextCtrl::CanCut() const
2251{
2252 return HasSelection() && IsEditable();
2253}
2254
2255bool wxRichTextCtrl::CanPaste() const
2256{
2257 if ( !IsEditable() )
2258 return false;
2259
2260 return GetBuffer().CanPasteFromClipboard();
2261}
2262
2263bool wxRichTextCtrl::CanDeleteSelection() const
2264{
2265 return HasSelection() && IsEditable();
2266}
2267
2268
2269// ----------------------------------------------------------------------------
2270// Accessors
2271// ----------------------------------------------------------------------------
2272
2273void wxRichTextCtrl::SetEditable(bool editable)
2274{
2275 m_editable = editable;
2276}
2277
2278void wxRichTextCtrl::SetInsertionPoint(long pos)
2279{
2280 SelectNone();
2281
2282 m_caretPosition = pos - 1;
6f5d63bc
JS		 2283
2284 PositionCaret();
5d7836c4
JS		 2285}
2286
2287void wxRichTextCtrl::SetInsertionPointEnd()
2288{
2289 long pos = GetLastPosition();
2290 SetInsertionPoint(pos);
2291}
2292
2293long wxRichTextCtrl::GetInsertionPoint() const
2294{
2295 return m_caretPosition+1;
2296}
2297
2298wxTextPos wxRichTextCtrl::GetLastPosition() const
2299{
2300 return GetBuffer().GetRange().GetEnd();
2301}
2302
2303// If the return values from and to are the same, there is no
2304// selection.
2305void wxRichTextCtrl::GetSelection(long* from, long* to) const
2306{
2307 *from = m_selectionRange.GetStart();
2308 *to = m_selectionRange.GetEnd();
96c9f0f6
JS		 2309 if ((*to) != -1 && (*to) != -2)
2310 (*to) ++;
5d7836c4
JS		 2311}
2312
2313bool wxRichTextCtrl::IsEditable() const
2314{
2315 return m_editable;
2316}
2317
2318// ----------------------------------------------------------------------------
2319// selection
2320// ----------------------------------------------------------------------------
2321
2322void wxRichTextCtrl::SetSelection(long from, long to)
2323{
2324 // if from and to are both -1, it means (in wxWidgets) that all text should
2325 // be selected.
2326 if ( (from == -1) && (to == -1) )
2327 {
2328 from = 0;
96c9f0f6 2329 to = GetLastPosition()+1;
5d7836c4
JS		 2330 }
2331
2332 DoSetSelection(from, to);
af33c0ec 2333 SetDefaultStyleToCursorStyle();
5d7836c4
JS		 2334}
2335
2336void wxRichTextCtrl::DoSetSelection(long from, long to, bool WXUNUSED(scrollCaret))
2337{
c1aec196
JS		 2338 if (from == to)
2339 {
2340 SelectNone();
2341 }
2342 else
2343 {
2344 m_selectionAnchor = from;
2345 m_selectionRange.SetRange(from, to-1);
2346 if (from > -2)
2347 m_caretPosition = from-1;
0ca07313 2348
c1aec196
JS		 2349 Refresh(false);
2350 PositionCaret();
2351 }
5d7836c4
JS		 2352}
2353
2354// ----------------------------------------------------------------------------
2355// Editing
2356// ----------------------------------------------------------------------------
2357
343ae70d
VZ		 2358void wxRichTextCtrl::Replace(long WXUNUSED(from), long WXUNUSED(to),
2359 const wxString& value)
5d7836c4
JS		 2360{
2361 BeginBatchUndo(_("Replace"));
2362
2363 DeleteSelectedContent();
2364
343ae70d 2365 DoWriteText(value, SetValue_SelectionOnly);
5d7836c4
JS		 2366
2367 EndBatchUndo();
2368}
2369
2370void wxRichTextCtrl::Remove(long from, long to)
2371{
2372 SelectNone();
2373
4b3483e7 2374 GetBuffer().DeleteRangeWithUndo(wxRichTextRange(from, to-1), this);
5d7836c4 2375
2f36e8dc 2376 LayoutContent();
5d7836c4 2377 if (!IsFrozen())
76bcd815 2378 Refresh(false);
5d7836c4
JS		 2379}
2380
2381bool wxRichTextCtrl::IsModified() const
2382{
2383 return m_buffer.IsModified();
2384}
2385
2386void wxRichTextCtrl::MarkDirty()
2387{
2388 m_buffer.Modify(true);
2389}
2390
2391void wxRichTextCtrl::DiscardEdits()
2392{
ab14c7aa 2393 m_caretPositionForDefaultStyle = -2;
5d7836c4
JS		 2394 m_buffer.Modify(false);
2395 m_buffer.GetCommandProcessor()->ClearCommands();
2396}
2397
2398int wxRichTextCtrl::GetNumberOfLines() const
2399{
2400 return GetBuffer().GetParagraphCount();
2401}
2402
2403// ----------------------------------------------------------------------------
2404// Positions <-> coords
2405// ----------------------------------------------------------------------------
2406
2407long wxRichTextCtrl::XYToPosition(long x, long y) const
2408{
2409 return GetBuffer().XYToPosition(x, y);
2410}
2411
2412bool wxRichTextCtrl::PositionToXY(long pos, long *x, long *y) const
2413{
2414 return GetBuffer().PositionToXY(pos, x, y);
2415}
2416
2417// ----------------------------------------------------------------------------
2418//
2419// ----------------------------------------------------------------------------
2420
2421void wxRichTextCtrl::ShowPosition(long pos)
2422{
2423 if (!IsPositionVisible(pos))
2424 ScrollIntoView(pos-1, WXK_DOWN);
2425}
2426
2427int wxRichTextCtrl::GetLineLength(long lineNo) const
2428{
2429 return GetBuffer().GetParagraphLength(lineNo);
2430}
2431
2432wxString wxRichTextCtrl::GetLineText(long lineNo) const
2433{
2434 return GetBuffer().GetParagraphText(lineNo);
2435}
2436
2437// ----------------------------------------------------------------------------
2438// Undo/redo
2439// ----------------------------------------------------------------------------
2440
2441void wxRichTextCtrl::Undo()
2442{
2443 if (CanUndo())
2444 {
2445 GetCommandProcessor()->Undo();
2446 }
2447}
2448
2449void wxRichTextCtrl::Redo()
2450{
2451 if (CanRedo())
2452 {
2453 GetCommandProcessor()->Redo();
2454 }
2455}
2456
2457bool wxRichTextCtrl::CanUndo() const
2458{
2459 return GetCommandProcessor()->CanUndo();
2460}
2461
2462bool wxRichTextCtrl::CanRedo() const
2463{
2464 return GetCommandProcessor()->CanRedo();
2465}
2466
2467// ----------------------------------------------------------------------------
563d25ba 2468// implementation details
5d7836c4
JS		 2469// ----------------------------------------------------------------------------
2470
563d25ba 2471void wxRichTextCtrl::Command(wxCommandEvent& event)
5d7836c4
JS		 2472{
2473 SetValue(event.GetString());
2474 GetEventHandler()->ProcessEvent(event);
2475}
2476
2477void wxRichTextCtrl::OnDropFiles(wxDropFilesEvent& event)
2478{
2479 // By default, load the first file into the text window.
2480 if (event.GetNumberOfFiles() > 0)
2481 {
2482 LoadFile(event.GetFiles()[0]);
2483 }
2484}
2485
5d7836c4
JS		 2486wxSize wxRichTextCtrl::DoGetBestSize() const
2487{
2488 return wxSize(10, 10);
2489}
2490
2491// ----------------------------------------------------------------------------
2492// standard handlers for standard edit menu events
2493// ----------------------------------------------------------------------------
2494
2495void wxRichTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
2496{
2497 Cut();
2498}
2499
2500void wxRichTextCtrl::OnClear(wxCommandEvent& WXUNUSED(event))
2501{
2502 DeleteSelection();
2503}
2504
2505void wxRichTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
2506{
2507 Copy();
2508}
2509
2510void wxRichTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
2511{
2512 Paste();
2513}
2514
2515void wxRichTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
2516{
2517 Undo();
2518}
2519
2520void wxRichTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
2521{
2522 Redo();
2523}
2524
2525void wxRichTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
2526{
2527 event.Enable( CanCut() );
2528}
2529
2530void wxRichTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
2531{
2532 event.Enable( CanCopy() );
2533}
2534
2535void wxRichTextCtrl::OnUpdateClear(wxUpdateUIEvent& event)
2536{
2537 event.Enable( CanDeleteSelection() );
2538}
2539
2540void wxRichTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
2541{
2542 event.Enable( CanPaste() );
2543}
2544
2545void wxRichTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
2546{
2547 event.Enable( CanUndo() );
2548 event.SetText( GetCommandProcessor()->GetUndoMenuLabel() );
2549}
2550
2551void wxRichTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
2552{
2553 event.Enable( CanRedo() );
2554 event.SetText( GetCommandProcessor()->GetRedoMenuLabel() );
2555}
2556
2557void wxRichTextCtrl::OnSelectAll(wxCommandEvent& WXUNUSED(event))
2558{
2559 SelectAll();
2560}
2561
2562void wxRichTextCtrl::OnUpdateSelectAll(wxUpdateUIEvent& event)
2563{
2564 event.Enable(GetLastPosition() > 0);
2565}
2566
b4ae0def 2567void wxRichTextCtrl::OnContextMenu(wxContextMenuEvent& event)
5d7836c4 2568{
b4ae0def
JS		 2569 if (event.GetEventObject() != this)
2570 {
2571 event.Skip();
2572 return;
2573 }
2574
5d7836c4
JS		 2575 if (!m_contextMenu)
2576 {
2577 m_contextMenu = new wxMenu;
2578 m_contextMenu->Append(wxID_UNDO, _("&Undo"));
2579 m_contextMenu->Append(wxID_REDO, _("&Redo"));
2580 m_contextMenu->AppendSeparator();
2581 m_contextMenu->Append(wxID_CUT, _("Cu&t"));
2582 m_contextMenu->Append(wxID_COPY, _("&Copy"));
2583 m_contextMenu->Append(wxID_PASTE, _("&Paste"));
2584 m_contextMenu->Append(wxID_CLEAR, _("&Delete"));
2585 m_contextMenu->AppendSeparator();
2586 m_contextMenu->Append(wxID_SELECTALL, _("Select &All"));
2587 }
2588 PopupMenu(m_contextMenu);
2589 return;
2590}
2591
27e20452
JS		 2592bool wxRichTextCtrl::SetStyle(long start, long end, const wxTextAttr& style)
2593{
44cc96a8 2594 return GetBuffer().SetStyle(wxRichTextRange(start, end-1), wxTextAttr(style));
27e20452
JS		 2595}
2596
44cc96a8 2597bool wxRichTextCtrl::SetStyle(const wxRichTextRange& range, const wxTextAttr& style)
5d7836c4 2598{
96c9f0f6 2599 return GetBuffer().SetStyle(range.ToInternal(), style);
5d7836c4
JS		 2600}
2601
3e3a754f
JS		 2602// extended style setting operation with flags including:
2603// wxRICHTEXT_SETSTYLE_WITH_UNDO, wxRICHTEXT_SETSTYLE_OPTIMIZE, wxRICHTEXT_SETSTYLE_PARAGRAPHS_ONLY.
2604// see richtextbuffer.h for more details.
3e3a754f 2605
44cc96a8 2606bool wxRichTextCtrl::SetStyleEx(const wxRichTextRange& range, const wxTextAttr& style, int flags)
3e3a754f
JS		 2607{
2608 return GetBuffer().SetStyle(range.ToInternal(), style, flags);
2609}
2610
27e20452
JS		 2611bool wxRichTextCtrl::SetDefaultStyle(const wxTextAttr& style)
2612{
44cc96a8 2613 return GetBuffer().SetDefaultStyle(wxTextAttr(style));
5d7836c4
JS		 2614}
2615
27e20452
JS		 2616const wxTextAttr& wxRichTextCtrl::GetDefaultStyle() const
2617{
61399247 2618 return GetBuffer().GetDefaultStyle();
27e20452
JS		 2619}
2620
3966a9f4 2621bool wxRichTextCtrl::GetStyle(long position, wxTextAttr& style)
5d7836c4
JS		 2622{
2623 return GetBuffer().GetStyle(position, style);
2624}
2625
a7ed48a5 2626// get the common set of styles for the range
44cc96a8 2627bool wxRichTextCtrl::GetStyleForRange(const wxRichTextRange& range, wxTextAttr& style)
a7ed48a5
JS		 2628{
2629 return GetBuffer().GetStyleForRange(range.ToInternal(), style);
2630}
2631
fe5aa22c 2632/// Get the content (uncombined) attributes for this position.
fe5aa22c 2633bool wxRichTextCtrl::GetUncombinedStyle(long position, wxTextAttr& style)
fe5aa22c
JS		 2634{
2635 return GetBuffer().GetUncombinedStyle(position, style);
2636}
2637
5d7836c4
JS		 2638/// Set font, and also the buffer attributes
2639bool wxRichTextCtrl::SetFont(const wxFont& font)
2640{
5d7836c4 2641 wxControl::SetFont(font);
5d7836c4 2642
44cc96a8 2643 wxTextAttr attr = GetBuffer().GetAttributes();
5d7836c4
JS		 2644 attr.SetFont(font);
2645 GetBuffer().SetBasicStyle(attr);
fe5aa22c 2646
fe5aa22c
JS		 2647 GetBuffer().Invalidate(wxRICHTEXT_ALL);
2648 Refresh(false);
5d7836c4
JS		 2649
2650 return true;
2651}
2652
4d551ad5
JS		 2653/// Transform logical to physical
2654wxPoint wxRichTextCtrl::GetPhysicalPoint(const wxPoint& ptLogical) const
5d7836c4
JS		 2655{
2656 wxPoint pt;
2657 CalcScrolledPosition(ptLogical.x, ptLogical.y, & pt.x, & pt.y);
2658
2659 return pt;
2660}
2661
2662/// Transform physical to logical
4d551ad5 2663wxPoint wxRichTextCtrl::GetLogicalPoint(const wxPoint& ptPhysical) const
5d7836c4
JS		 2664{
2665 wxPoint pt;
2666 CalcUnscrolledPosition(ptPhysical.x, ptPhysical.y, & pt.x, & pt.y);
2667
2668 return pt;
2669}
2670
2671/// Position the caret
2672void wxRichTextCtrl::PositionCaret()
2673{
c59f6793
JS		 2674 if (!GetCaret())
2675 return;
2676
2677 //wxLogDebug(wxT("PositionCaret"));
2678
5d7836c4
JS		 2679 wxRect caretRect;
2680 if (GetCaretPositionForIndex(GetCaretPosition(), caretRect))
2681 {
7e4fe193
JS		 2682 wxPoint newPt = caretRect.GetPosition();
2683 wxSize newSz = caretRect.GetSize();
2684 wxPoint pt = GetPhysicalPoint(newPt);
2685 if (GetCaret()->GetPosition() != pt || GetCaret()->GetSize() != newSz)
c59f6793
JS		 2686 {
2687 GetCaret()->Move(pt);
7e4fe193 2688 GetCaret()->SetSize(newSz);
c59f6793 2689 }
5d7836c4
JS		 2690 }
2691}
2692
2693/// Get the caret height and position for the given character position
2694bool wxRichTextCtrl::GetCaretPositionForIndex(long position, wxRect& rect)
2695{
2696 wxClientDC dc(this);
2697 dc.SetFont(GetFont());
7fe8059f 2698
5d7836c4
JS		 2699 PrepareDC(dc);
2700
2701 wxPoint pt;
2702 int height = 0;
2703
2704 if (GetBuffer().FindPosition(dc, position, pt, & height, m_caretAtLineStart))
2705 {
88bee7e6
JS		 2706 // Caret height can't be zero
2707 if (height == 0)
2708 height = dc.GetCharHeight();
2709
5d7836c4
JS		 2710 rect = wxRect(pt, wxSize(wxRICHTEXT_DEFAULT_CARET_WIDTH, height));
2711 return true;
2712 }
41e155b4
WS		 2713
2714 return false;
5d7836c4
JS		 2715}
2716
2717/// Gets the line for the visible caret position. If the caret is
2718/// shown at the very end of the line, it means the next character is actually
2719/// on the following line. So let's get the line we're expecting to find
2720/// if this is the case.
2721wxRichTextLine* wxRichTextCtrl::GetVisibleLineForCaretPosition(long caretPosition) const
2722{
2723 wxRichTextLine* line = GetBuffer().GetLineAtPosition(caretPosition, true);
2724 wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(caretPosition, true);
2725 if (line)
2726 {
1e967276
JS		 2727 wxRichTextRange lineRange = line->GetAbsoluteRange();
2728 if (caretPosition == lineRange.GetStart()-1 &&
2729 (para->GetRange().GetStart() != lineRange.GetStart()))
5d7836c4
JS		 2730 {
2731 if (!m_caretAtLineStart)
2732 line = GetBuffer().GetLineAtPosition(caretPosition-1, true);
2733 }
2734 }
2735 return line;
2736}
2737
2738
2739/// Move the caret to the given character position
2740bool wxRichTextCtrl::MoveCaret(long pos, bool showAtLineStart)
2741{
2742 if (GetBuffer().GetDirty())
2f36e8dc 2743 LayoutContent();
5d7836c4
JS		 2744
2745 if (pos <= GetBuffer().GetRange().GetEnd())
2746 {
2747 SetCaretPosition(pos, showAtLineStart);
2748
2749 PositionCaret();
2750
2751 return true;
2752 }
2753 else
2754 return false;
2755}
2756
2757/// Layout the buffer: which we must do before certain operations, such as
2758/// setting the caret position.
2f36e8dc 2759bool wxRichTextCtrl::LayoutContent(bool onlyVisibleRect)
5d7836c4 2760{
4d551ad5 2761 if (GetBuffer().GetDirty() || onlyVisibleRect)
1e967276
JS		 2762 {
2763 wxRect availableSpace(GetClientSize());
2764 if (availableSpace.width == 0)
2765 availableSpace.width = 10;
2766 if (availableSpace.height == 0)
2767 availableSpace.height = 10;
4d551ad5
JS		 2768
2769 int flags = wxRICHTEXT_FIXED_WIDTH|wxRICHTEXT_VARIABLE_HEIGHT;
2770 if (onlyVisibleRect)
2771 {
2772 flags |= wxRICHTEXT_LAYOUT_SPECIFIED_RECT;
2773 availableSpace.SetPosition(GetLogicalPoint(wxPoint(0, 0)));
2774 }
41e155b4 2775
1e967276
JS		 2776 wxClientDC dc(this);
2777 dc.SetFont(GetFont());
41e155b4 2778
1e967276 2779 PrepareDC(dc);
41e155b4 2780
1e967276
JS		 2781 GetBuffer().Defragment();
2782 GetBuffer().UpdateRanges(); // If items were deleted, ranges need recalculation
4d551ad5 2783 GetBuffer().Layout(dc, availableSpace, flags);
1e967276 2784 GetBuffer().SetDirty(false);
41e155b4 2785
1e967276
JS		 2786 if (!IsFrozen())
2787 SetupScrollbars();
2788 }
5d7836c4
JS		 2789
2790 return true;
2791}
2792
2793/// Is all of the selection bold?
3966a9f4 2794bool wxRichTextCtrl::IsSelectionBold()
5d7836c4
JS		 2795{
2796 if (HasSelection())
2797 {
44cc96a8 2798 wxTextAttr attr;
a7ed48a5 2799 wxRichTextRange range = GetSelectionRange();
5d7836c4
JS		 2800 attr.SetFlags(wxTEXT_ATTR_FONT_WEIGHT);
2801 attr.SetFontWeight(wxBOLD);
7fe8059f 2802
5d7836c4
JS		 2803 return HasCharacterAttributes(range, attr);
2804 }
2805 else
2806 {
2807 // If no selection, then we need to combine current style with default style
2808 // to see what the effect would be if we started typing.
44cc96a8 2809 wxTextAttr attr;
5d7836c4 2810 attr.SetFlags(wxTEXT_ATTR_FONT_WEIGHT);
ab14c7aa
JS		 2811
2812 long pos = GetAdjustedCaretPosition(GetCaretPosition());
2813 if (GetStyle(pos, attr))
5d7836c4 2814 {
ab14c7aa
JS		 2815 if (IsDefaultStyleShowing())
2816 wxRichTextApplyStyle(attr, GetDefaultStyleEx());
5d7836c4
JS		 2817 return attr.GetFontWeight() == wxBOLD;
2818 }
2819 }
2820 return false;
2821}
2822
2823/// Is all of the selection italics?
3966a9f4 2824bool wxRichTextCtrl::IsSelectionItalics()
5d7836c4
JS		 2825{
2826 if (HasSelection())
2827 {
a7ed48a5 2828 wxRichTextRange range = GetSelectionRange();
44cc96a8 2829 wxTextAttr attr;
5d7836c4
JS		 2830 attr.SetFlags(wxTEXT_ATTR_FONT_ITALIC);
2831 attr.SetFontStyle(wxITALIC);
7fe8059f 2832
5d7836c4
JS		 2833 return HasCharacterAttributes(range, attr);
2834 }
2835 else
2836 {
2837 // If no selection, then we need to combine current style with default style
2838 // to see what the effect would be if we started typing.
44cc96a8 2839 wxTextAttr attr;
5d7836c4 2840 attr.SetFlags(wxTEXT_ATTR_FONT_ITALIC);
ab14c7aa
JS		 2841
2842 long pos = GetAdjustedCaretPosition(GetCaretPosition());
2843 if (GetStyle(pos, attr))
5d7836c4 2844 {
ab14c7aa
JS		 2845 if (IsDefaultStyleShowing())
2846 wxRichTextApplyStyle(attr, GetDefaultStyleEx());
5d7836c4
JS		 2847 return attr.GetFontStyle() == wxITALIC;
2848 }
2849 }
2850 return false;
2851}
2852
2853/// Is all of the selection underlined?
3966a9f4 2854bool wxRichTextCtrl::IsSelectionUnderlined()
5d7836c4
JS		 2855{
2856 if (HasSelection())
2857 {
a7ed48a5 2858 wxRichTextRange range = GetSelectionRange();
44cc96a8 2859 wxTextAttr attr;
5d7836c4
JS		 2860 attr.SetFlags(wxTEXT_ATTR_FONT_UNDERLINE);
2861 attr.SetFontUnderlined(true);
7fe8059f 2862
5d7836c4
JS		 2863 return HasCharacterAttributes(range, attr);
2864 }
2865 else
2866 {
2867 // If no selection, then we need to combine current style with default style
2868 // to see what the effect would be if we started typing.
44cc96a8 2869 wxTextAttr attr;
5d7836c4 2870 attr.SetFlags(wxTEXT_ATTR_FONT_UNDERLINE);
ab14c7aa 2871 long pos = GetAdjustedCaretPosition(GetCaretPosition());
fe5aa22c 2872
ab14c7aa 2873 if (GetStyle(pos, attr))
5d7836c4 2874 {
ab14c7aa
JS		 2875 if (IsDefaultStyleShowing())
2876 wxRichTextApplyStyle(attr, GetDefaultStyleEx());
5d7836c4
JS		 2877 return attr.GetFontUnderlined();
2878 }
2879 }
2880 return false;
2881}
2882
2883/// Apply bold to the selection
2884bool wxRichTextCtrl::ApplyBoldToSelection()
2885{
44cc96a8 2886 wxTextAttr attr;
5d7836c4
JS		 2887 attr.SetFlags(wxTEXT_ATTR_FONT_WEIGHT);
2888 attr.SetFontWeight(IsSelectionBold() ? wxNORMAL : wxBOLD);
2889
2890 if (HasSelection())
3e3a754f 2891 return SetStyleEx(GetSelectionRange(), attr, wxRICHTEXT_SETSTYLE_WITH_UNDO|wxRICHTEXT_SETSTYLE_OPTIMIZE|wxRICHTEXT_SETSTYLE_CHARACTERS_ONLY);
5d7836c4 2892 else
063dbace
JS		 2893 {
2894 wxRichTextAttr current = GetDefaultStyleEx();
2895 current.Apply(attr);
2896 SetAndShowDefaultStyle(current);
2897 }
5d7836c4
JS		 2898 return true;
2899}
2900
2901/// Apply italic to the selection
2902bool wxRichTextCtrl::ApplyItalicToSelection()
2903{
44cc96a8 2904 wxTextAttr attr;
5d7836c4
JS		 2905 attr.SetFlags(wxTEXT_ATTR_FONT_ITALIC);
2906 attr.SetFontStyle(IsSelectionItalics() ? wxNORMAL : wxITALIC);
2907
2908 if (HasSelection())
3e3a754f 2909 return SetStyleEx(GetSelectionRange(), attr, wxRICHTEXT_SETSTYLE_WITH_UNDO|wxRICHTEXT_SETSTYLE_OPTIMIZE|wxRICHTEXT_SETSTYLE_CHARACTERS_ONLY);
5d7836c4 2910 else
063dbace
JS		 2911 {
2912 wxRichTextAttr current = GetDefaultStyleEx();
2913 current.Apply(attr);
2914 SetAndShowDefaultStyle(current);
2915 }
5d7836c4
JS		 2916 return true;
2917}
2918
2919/// Apply underline to the selection
2920bool wxRichTextCtrl::ApplyUnderlineToSelection()
2921{
44cc96a8 2922 wxTextAttr attr;
5d7836c4 2923 attr.SetFlags(wxTEXT_ATTR_FONT_UNDERLINE);
4d551ad5 2924 attr.SetFontUnderlined(!IsSelectionUnderlined());
5d7836c4
JS		 2925
2926 if (HasSelection())
3e3a754f 2927 return SetStyleEx(GetSelectionRange(), attr, wxRICHTEXT_SETSTYLE_WITH_UNDO|wxRICHTEXT_SETSTYLE_OPTIMIZE|wxRICHTEXT_SETSTYLE_CHARACTERS_ONLY);
5d7836c4 2928 else
063dbace
JS		 2929 {
2930 wxRichTextAttr current = GetDefaultStyleEx();
2931 current.Apply(attr);
2932 SetAndShowDefaultStyle(current);
2933 }
5d7836c4
JS		 2934 return true;
2935}
2936
2937/// Is all of the selection aligned according to the specified flag?
3966a9f4 2938bool wxRichTextCtrl::IsSelectionAligned(wxTextAttrAlignment alignment)
5d7836c4 2939{
0ca07313 2940 wxRichTextRange range;
5d7836c4 2941 if (HasSelection())
a7ed48a5 2942 range = GetSelectionRange();
5d7836c4 2943 else
a7ed48a5 2944 range = wxRichTextRange(GetCaretPosition()+1, GetCaretPosition()+2);
0ca07313 2945
44cc96a8 2946 wxTextAttr attr;
0ca07313
JS		 2947 attr.SetAlignment(alignment);
2948
2949 return HasParagraphAttributes(range, attr);
5d7836c4
JS		 2950}
2951
2952/// Apply alignment to the selection
2953bool wxRichTextCtrl::ApplyAlignmentToSelection(wxTextAttrAlignment alignment)
2954{
44cc96a8 2955 wxTextAttr attr;
5d7836c4
JS		 2956 attr.SetAlignment(alignment);
2957 if (HasSelection())
2958 return SetStyle(GetSelectionRange(), attr);
2959 else
2960 {
2961 wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(GetCaretPosition()+1);
2962 if (para)
3e3a754f 2963 return SetStyleEx(para->GetRange().FromInternal(), attr, wxRICHTEXT_SETSTYLE_WITH_UNDO|wxRICHTEXT_SETSTYLE_OPTIMIZE|wxRICHTEXT_SETSTYLE_PARAGRAPHS_ONLY);
5d7836c4
JS		 2964 }
2965 return true;
2966}
2967
ab14c7aa 2968/// Apply a named style to the selection
1807a1f3 2969bool wxRichTextCtrl::ApplyStyle(wxRichTextStyleDefinition* def)
ab14c7aa
JS		 2970{
2971 // Flags are defined within each definition, so only certain
2972 // attributes are applied.
44cc96a8 2973 wxTextAttr attr(GetStyleSheet() ? def->GetStyleMergedWithBase(GetStyleSheet()) : def->GetStyle());
1807a1f3 2974
f2ab7bf3 2975 int flags = wxRICHTEXT_SETSTYLE_WITH_UNDO|wxRICHTEXT_SETSTYLE_OPTIMIZE|wxRICHTEXT_SETSTYLE_RESET;
ab14c7aa 2976
38f833b1
JS		 2977 if (def->IsKindOf(CLASSINFO(wxRichTextListStyleDefinition)))
2978 {
2979 flags |= wxRICHTEXT_SETSTYLE_PARAGRAPHS_ONLY;
41a85215 2980
38f833b1 2981 wxRichTextRange range;
41a85215 2982
38f833b1
JS		 2983 if (HasSelection())
2984 range = GetSelectionRange();
2985 else
2986 {
41a85215 2987 long pos = GetAdjustedCaretPosition(GetCaretPosition());
38f833b1
JS		 2988 range = wxRichTextRange(pos, pos+1);
2989 }
41a85215
WS		 2990
2991 return SetListStyle(range, (wxRichTextListStyleDefinition*) def, flags);
2992 }
2993
ab14c7aa
JS		 2994 // Make sure the attr has the style name
2995 if (def->IsKindOf(CLASSINFO(wxRichTextParagraphStyleDefinition)))
3e3a754f 2996 {
ab14c7aa 2997 attr.SetParagraphStyleName(def->GetName());
1807a1f3 2998
3e3a754f 2999 // If applying a paragraph style, we only want the paragraph nodes to adopt these
38f833b1 3000 // attributes, and not the leaf nodes. This will allow the content (e.g. text)
3e3a754f
JS		 3001 // to change its style independently.
3002 flags |= wxRICHTEXT_SETSTYLE_PARAGRAPHS_ONLY;
3003 }
ab14c7aa
JS		 3004 else
3005 attr.SetCharacterStyleName(def->GetName());
3006
3007 if (HasSelection())
1807a1f3 3008 return SetStyleEx(GetSelectionRange(), attr, flags);
ab14c7aa 3009 else
1807a1f3 3010 {
063dbace
JS		 3011 wxRichTextAttr current = GetDefaultStyleEx();
3012 current.Apply(attr);
3013 SetAndShowDefaultStyle(current);
1807a1f3
JS		 3014 return true;
3015 }
ab14c7aa
JS		 3016}
3017
fe5aa22c
JS		 3018/// Apply the style sheet to the buffer, for example if the styles have changed.
3019bool wxRichTextCtrl::ApplyStyleSheet(wxRichTextStyleSheet* styleSheet)
3020{
3021 if (!styleSheet)
3022 styleSheet = GetBuffer().GetStyleSheet();
3023 if (!styleSheet)
3024 return false;
3025
3026 if (GetBuffer().ApplyStyleSheet(styleSheet))
3027 {
3028 GetBuffer().Invalidate(wxRICHTEXT_ALL);
3029 Refresh(false);
3030 return true;
3031 }
3032 else
3033 return false;
3034}
3035
5d7836c4
JS		 3036/// Sets the default style to the style under the cursor
3037bool wxRichTextCtrl::SetDefaultStyleToCursorStyle()
3038{
44cc96a8 3039 wxTextAttr attr;
5d7836c4
JS		 3040 attr.SetFlags(wxTEXT_ATTR_CHARACTER);
3041
ab14c7aa
JS		 3042 // If at the start of a paragraph, use the next position.
3043 long pos = GetAdjustedCaretPosition(GetCaretPosition());
3044
fe5aa22c 3045 if (GetUncombinedStyle(pos, attr))
5d7836c4
JS		 3046 {
3047 SetDefaultStyle(attr);
3048 return true;
3049 }
41e155b4
WS		 3050
3051 return false;
5d7836c4
JS		 3052}
3053
4d551ad5
JS		 3054/// Returns the first visible position in the current view
3055long wxRichTextCtrl::GetFirstVisiblePosition() const
3056{
3057 wxRichTextLine* line = GetBuffer().GetLineAtYPosition(GetLogicalPoint(wxPoint(0, 0)).y);
3058 if (line)
3059 return line->GetAbsoluteRange().GetStart();
3060 else
3061 return 0;
3062}
3063
ea160b2e
JS		 3064/// Get the first visible point in the window
3065wxPoint wxRichTextCtrl::GetFirstVisiblePoint() const
3066{
3067 int ppuX, ppuY;
3068 int startXUnits, startYUnits;
3069
3070 GetScrollPixelsPerUnit(& ppuX, & ppuY);
3071 GetViewStart(& startXUnits, & startYUnits);
3072
3073 return wxPoint(startXUnits * ppuX, startYUnits * ppuY);
3074}
3075
ab14c7aa
JS		 3076/// The adjusted caret position is the character position adjusted to take
3077/// into account whether we're at the start of a paragraph, in which case
3078/// style information should be taken from the next position, not current one.
3079long wxRichTextCtrl::GetAdjustedCaretPosition(long caretPos) const
3080{
3081 wxRichTextParagraph* para = GetBuffer().GetParagraphAtPosition(caretPos+1);
3082
3083 if (para && (caretPos+1 == para->GetRange().GetStart()))
3084 caretPos ++;
3085 return caretPos;
3086}
3087
96c9f0f6
JS		 3088/// Get/set the selection range in character positions. -1, -1 means no selection.
3089/// The range is in API convention, i.e. a single character selection is denoted
3090/// by (n, n+1)
3091wxRichTextRange wxRichTextCtrl::GetSelectionRange() const
3092{
3093 wxRichTextRange range = GetInternalSelectionRange();
3094 if (range != wxRichTextRange(-2,-2) && range != wxRichTextRange(-1,-1))
3095 range.SetEnd(range.GetEnd() + 1);
3096 return range;
3097}
3098
3099void wxRichTextCtrl::SetSelectionRange(const wxRichTextRange& range)
3100{
3101 wxRichTextRange range1(range);
3102 if (range1 != wxRichTextRange(-2,-2) && range1 != wxRichTextRange(-1,-1) )
3103 range1.SetEnd(range1.GetEnd() - 1);
3104
3105 wxASSERT( range1.GetStart() > range1.GetEnd() );
fe5aa22c 3106
96c9f0f6
JS		 3107 SetInternalSelectionRange(range1);
3108}
3109
38f833b1
JS		 3110/// Set list style
3111bool wxRichTextCtrl::SetListStyle(const wxRichTextRange& range, wxRichTextListStyleDefinition* def, int flags, int startFrom, int specifiedLevel)
3112{
3113 return GetBuffer().SetListStyle(range.ToInternal(), def, flags, startFrom, specifiedLevel);
3114}
3115
3116bool wxRichTextCtrl::SetListStyle(const wxRichTextRange& range, const wxString& defName, int flags, int startFrom, int specifiedLevel)
3117{
3118 return GetBuffer().SetListStyle(range.ToInternal(), defName, flags, startFrom, specifiedLevel);
3119}
3120
3121/// Clear list for given range
3122bool wxRichTextCtrl::ClearListStyle(const wxRichTextRange& range, int flags)
3123{
3124 return GetBuffer().ClearListStyle(range.ToInternal(), flags);
3125}
3126
3127/// Number/renumber any list elements in the given range
3128bool wxRichTextCtrl::NumberList(const wxRichTextRange& range, wxRichTextListStyleDefinition* def, int flags, int startFrom, int specifiedLevel)
3129{
41a85215 3130 return GetBuffer().NumberList(range.ToInternal(), def, flags, startFrom, specifiedLevel);
38f833b1
JS		 3131}
3132
3133bool wxRichTextCtrl::NumberList(const wxRichTextRange& range, const wxString& defName, int flags, int startFrom, int specifiedLevel)
3134{
41a85215 3135 return GetBuffer().NumberList(range.ToInternal(), defName, flags, startFrom, specifiedLevel);
38f833b1
JS		 3136}
3137
3138/// Promote the list items within the given range. promoteBy can be a positive or negative number, e.g. 1 or -1
3139bool wxRichTextCtrl::PromoteList(int promoteBy, const wxRichTextRange& range, wxRichTextListStyleDefinition* def, int flags, int specifiedLevel)
3140{
3141 return GetBuffer().PromoteList(promoteBy, range.ToInternal(), def, flags, specifiedLevel);
3142}
3143
3144bool wxRichTextCtrl::PromoteList(int promoteBy, const wxRichTextRange& range, const wxString& defName, int flags, int specifiedLevel)
3145{
3146 return GetBuffer().PromoteList(promoteBy, range.ToInternal(), defName, flags, specifiedLevel);
3147}
3148
12cc29c5
JS		 3149/// Deletes the content in the given range
3150bool wxRichTextCtrl::Delete(const wxRichTextRange& range)
3151{
3152 return GetBuffer().DeleteRangeWithUndo(range.ToInternal(), this);
3153}
3154
dadd4f55
JS		 3155const wxArrayString& wxRichTextCtrl::GetAvailableFontNames()
3156{
3157 if (sm_availableFontNames.GetCount() == 0)
3158 {
3159 sm_availableFontNames = wxFontEnumerator::GetFacenames();
3160 sm_availableFontNames.Sort();
3161 }
3162 return sm_availableFontNames;
3163}
3164
3165void wxRichTextCtrl::ClearAvailableFontNames()
3166{
3167 sm_availableFontNames.Clear();
3168}
3169
c0a5145a 3170void wxRichTextCtrl::OnSysColourChanged(wxSysColourChangedEvent& WXUNUSED(event))
52170c5b
JS		 3171{
3172 //wxLogDebug(wxT("wxRichTextCtrl::OnSysColourChanged"));
3173
3174 wxTextAttrEx basicStyle = GetBasicStyle();
3175 basicStyle.SetTextColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT));
3176 SetBasicStyle(basicStyle);
3177 SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW));
3178
3179 Refresh();
3180}
3181
5d7836c4
JS		 3182#endif
3183 // wxUSE_RICHTEXT
wxWidgets (Impactor)