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build fix for wxUSE_INTL==0 (patch 1878908)
[wxWidgets.git] / src / msw / textctrl.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/msw/textctrl.cpp
3 // Purpose: wxTextCtrl
4 // Author: Julian Smart
5 // Modified by:
6 // Created: 04/01/98
7 // RCS-ID: $Id$
8 // Copyright: (c) Julian Smart
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 // ============================================================================
13 // declarations
14 // ============================================================================
15
16 // ----------------------------------------------------------------------------
17 // headers
18 // ----------------------------------------------------------------------------
19
20 // For compilers that support precompilation, includes "wx.h".
21 #include "wx/wxprec.h"
22
23 #ifdef __BORLANDC__
24 #pragma hdrstop
25 #endif
26
27 #if wxUSE_TEXTCTRL && !(defined(__SMARTPHONE__) && defined(__WXWINCE__))
28
29 #ifndef WX_PRECOMP
30 #include "wx/textctrl.h"
31 #include "wx/settings.h"
32 #include "wx/brush.h"
33 #include "wx/utils.h"
34 #include "wx/intl.h"
35 #include "wx/log.h"
36 #include "wx/app.h"
37 #include "wx/menu.h"
38 #include "wx/math.h"
39 #include "wx/module.h"
40 #include "wx/wxcrtvararg.h"
41 #endif
42
43 #include "wx/sysopt.h"
44
45 #if wxUSE_CLIPBOARD
46 #include "wx/clipbrd.h"
47 #endif
48
49 #include "wx/textfile.h"
50
51 #include <windowsx.h>
52
53 #include "wx/msw/private.h"
54 #include "wx/msw/winundef.h"
55 #include "wx/msw/mslu.h"
56
57 #include <string.h>
58 #include <stdlib.h>
59
60 #ifndef __WXWINCE__
61 #include <sys/types.h>
62 #endif
63
64 #if wxUSE_RICHEDIT
65
66 #if wxUSE_INKEDIT
67 #include "wx/dynlib.h"
68 #endif
69
70 // old mingw32 has richedit stuff directly in windows.h and doesn't have
71 // richedit.h at all
72 #if !defined(__GNUWIN32_OLD__) || defined(__CYGWIN10__)
73 #include <richedit.h>
74 #endif
75
76 #endif // wxUSE_RICHEDIT
77
78 #include "wx/msw/missing.h"
79
80 #if wxUSE_DRAG_AND_DROP && wxUSE_RICHEDIT
81
82 // dummy value used for m_dropTarget, different from any valid pointer value
83 // (which are all even under Windows) and NULL
84 static wxDropTarget *
85 wxRICHTEXT_DEFAULT_DROPTARGET = wx_reinterpret_cast(wxDropTarget *, 1);
86
87 #endif // wxUSE_DRAG_AND_DROP && wxUSE_RICHEDIT
88
89 // ----------------------------------------------------------------------------
90 // private classes
91 // ----------------------------------------------------------------------------
92
93 #if wxUSE_RICHEDIT
94
95 // this module initializes RichEdit DLL(s) if needed
96 class wxRichEditModule : public wxModule
97 {
98 public:
99 enum Version
100 {
101 Version_1, // riched32.dll
102 Version_2or3, // both use riched20.dll
103 Version_41, // msftedit.dll (XP SP1 and Windows 2003)
104 Version_Max
105 };
106
107 virtual bool OnInit();
108 virtual void OnExit();
109
110 // load the richedit DLL for the specified version of rich edit
111 static bool Load(Version version);
112
113 #if wxUSE_INKEDIT
114 // load the InkEdit library
115 static bool LoadInkEdit();
116 #endif
117
118 private:
119 // the handles to richedit 1.0 and 2.0 (or 3.0) DLLs
120 static HINSTANCE ms_hRichEdit[Version_Max];
121
122 #if wxUSE_INKEDIT
123 static wxDynamicLibrary ms_inkEditLib;
124 static bool ms_inkEditLibLoadAttemped;
125 #endif
126
127 DECLARE_DYNAMIC_CLASS(wxRichEditModule)
128 };
129
130 HINSTANCE wxRichEditModule::ms_hRichEdit[Version_Max] = { NULL, NULL, NULL };
131
132 #if wxUSE_INKEDIT
133 wxDynamicLibrary wxRichEditModule::ms_inkEditLib;
134 bool wxRichEditModule::ms_inkEditLibLoadAttemped = false;
135 #endif
136
137 IMPLEMENT_DYNAMIC_CLASS(wxRichEditModule, wxModule)
138
139 #endif // wxUSE_RICHEDIT
140
141 // a small class used to set m_updatesCount to 0 (to filter duplicate events if
142 // necessary) and to reset it back to -1 afterwards
143 class UpdatesCountFilter
144 {
145 public:
146 UpdatesCountFilter(int& count)
147 : m_count(count)
148 {
149 wxASSERT_MSG( m_count == -1 || m_count == -2,
150 _T("wrong initial m_updatesCount value") );
151
152 if (m_count != -2)
153 m_count = 0;
154 //else: we don't want to count how many update events we get as we're going
155 // to ignore all of them
156 }
157
158 ~UpdatesCountFilter()
159 {
160 m_count = -1;
161 }
162
163 // return true if an event has been received
164 bool GotUpdate() const
165 {
166 return m_count == 1;
167 }
168
169 private:
170 int& m_count;
171
172 DECLARE_NO_COPY_CLASS(UpdatesCountFilter)
173 };
174
175 // ----------------------------------------------------------------------------
176 // event tables and other macros
177 // ----------------------------------------------------------------------------
178
179 #if wxUSE_EXTENDED_RTTI
180 WX_DEFINE_FLAGS( wxTextCtrlStyle )
181
182 wxBEGIN_FLAGS( wxTextCtrlStyle )
183 // new style border flags, we put them first to
184 // use them for streaming out
185 wxFLAGS_MEMBER(wxBORDER_SIMPLE)
186 wxFLAGS_MEMBER(wxBORDER_SUNKEN)
187 wxFLAGS_MEMBER(wxBORDER_DOUBLE)
188 wxFLAGS_MEMBER(wxBORDER_RAISED)
189 wxFLAGS_MEMBER(wxBORDER_STATIC)
190 wxFLAGS_MEMBER(wxBORDER_NONE)
191
192 // old style border flags
193 wxFLAGS_MEMBER(wxSIMPLE_BORDER)
194 wxFLAGS_MEMBER(wxSUNKEN_BORDER)
195 wxFLAGS_MEMBER(wxDOUBLE_BORDER)
196 wxFLAGS_MEMBER(wxRAISED_BORDER)
197 wxFLAGS_MEMBER(wxSTATIC_BORDER)
198 wxFLAGS_MEMBER(wxBORDER)
199
200 // standard window styles
201 wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
202 wxFLAGS_MEMBER(wxCLIP_CHILDREN)
203 wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
204 wxFLAGS_MEMBER(wxWANTS_CHARS)
205 wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE)
206 wxFLAGS_MEMBER(wxALWAYS_SHOW_SB )
207 wxFLAGS_MEMBER(wxVSCROLL)
208 wxFLAGS_MEMBER(wxHSCROLL)
209
210 wxFLAGS_MEMBER(wxTE_PROCESS_ENTER)
211 wxFLAGS_MEMBER(wxTE_PROCESS_TAB)
212 wxFLAGS_MEMBER(wxTE_MULTILINE)
213 wxFLAGS_MEMBER(wxTE_PASSWORD)
214 wxFLAGS_MEMBER(wxTE_READONLY)
215 wxFLAGS_MEMBER(wxHSCROLL)
216 wxFLAGS_MEMBER(wxTE_RICH)
217 wxFLAGS_MEMBER(wxTE_RICH2)
218 wxFLAGS_MEMBER(wxTE_AUTO_URL)
219 wxFLAGS_MEMBER(wxTE_NOHIDESEL)
220 wxFLAGS_MEMBER(wxTE_LEFT)
221 wxFLAGS_MEMBER(wxTE_CENTRE)
222 wxFLAGS_MEMBER(wxTE_RIGHT)
223 wxFLAGS_MEMBER(wxTE_DONTWRAP)
224 wxFLAGS_MEMBER(wxTE_CHARWRAP)
225 wxFLAGS_MEMBER(wxTE_WORDWRAP)
226
227 wxEND_FLAGS( wxTextCtrlStyle )
228
229 IMPLEMENT_DYNAMIC_CLASS_XTI(wxTextCtrl, wxControl,"wx/textctrl.h")
230
231 wxBEGIN_PROPERTIES_TABLE(wxTextCtrl)
232 wxEVENT_PROPERTY( TextUpdated , wxEVT_COMMAND_TEXT_UPDATED , wxCommandEvent )
233 wxEVENT_PROPERTY( TextEnter , wxEVT_COMMAND_TEXT_ENTER , wxCommandEvent )
234
235 wxPROPERTY( Font , wxFont , SetFont , GetFont , EMPTY_MACROVALUE, 0 /*flags*/ , wxT("Helpstring") , wxT("group") )
236 wxPROPERTY( Value , wxString , SetValue, GetValue, wxString() , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
237 wxPROPERTY_FLAGS( WindowStyle , wxTextCtrlStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
238 wxEND_PROPERTIES_TABLE()
239
240 wxBEGIN_HANDLERS_TABLE(wxTextCtrl)
241 wxEND_HANDLERS_TABLE()
242
243 wxCONSTRUCTOR_6( wxTextCtrl , wxWindow* , Parent , wxWindowID , Id , wxString , Value , wxPoint , Position , wxSize , Size , long , WindowStyle)
244 #else
245 IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl, wxTextCtrlBase)
246 #endif
247
248
249 BEGIN_EVENT_TABLE(wxTextCtrl, wxTextCtrlBase)
250 EVT_CHAR(wxTextCtrl::OnChar)
251 EVT_DROP_FILES(wxTextCtrl::OnDropFiles)
252
253 #if wxUSE_RICHEDIT
254 EVT_CONTEXT_MENU(wxTextCtrl::OnContextMenu)
255 #endif
256
257 EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
258 EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy)
259 EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste)
260 EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo)
261 EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo)
262 EVT_MENU(wxID_CLEAR, wxTextCtrl::OnDelete)
263 EVT_MENU(wxID_SELECTALL, wxTextCtrl::OnSelectAll)
264
265 EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut)
266 EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy)
267 EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
268 EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
269 EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)
270 EVT_UPDATE_UI(wxID_CLEAR, wxTextCtrl::OnUpdateDelete)
271 EVT_UPDATE_UI(wxID_SELECTALL, wxTextCtrl::OnUpdateSelectAll)
272
273 EVT_SET_FOCUS(wxTextCtrl::OnSetFocus)
274 END_EVENT_TABLE()
275
276 // ============================================================================
277 // implementation
278 // ============================================================================
279
280 // ----------------------------------------------------------------------------
281 // creation
282 // ----------------------------------------------------------------------------
283
284 void wxTextCtrl::Init()
285 {
286 #if wxUSE_RICHEDIT
287 m_verRichEdit = 0;
288 #endif // wxUSE_RICHEDIT
289
290 #if wxUSE_INKEDIT && wxUSE_RICHEDIT
291 m_isInkEdit = 0;
292 #endif
293
294 m_privateContextMenu = NULL;
295 m_updatesCount = -1;
296 m_isNativeCaretShown = true;
297 }
298
299 wxTextCtrl::~wxTextCtrl()
300 {
301 #if wxUSE_DRAG_AND_DROP && wxUSE_RICHEDIT
302 if ( m_dropTarget == wxRICHTEXT_DEFAULT_DROPTARGET )
303 {
304 // don't try to destroy this dummy pointer in the base class dtor
305 m_dropTarget = NULL;
306 }
307 #endif // wxUSE_DRAG_AND_DROP && wxUSE_RICHEDIT
308
309 delete m_privateContextMenu;
310 }
311
312 bool wxTextCtrl::Create(wxWindow *parent,
313 wxWindowID id,
314 const wxString& value,
315 const wxPoint& pos,
316 const wxSize& size,
317 long style,
318 const wxValidator& validator,
319 const wxString& name)
320 {
321 // base initialization
322 if ( !CreateControl(parent, id, pos, size, style, validator, name) )
323 return false;
324
325 if ( !MSWCreateText(value, pos, size) )
326 return false;
327
328 #if wxUSE_DRAG_AND_DROP && wxUSE_RICHEDIT
329 if ( IsRich() )
330 {
331 // rich text controls have a default associated drop target which
332 // allows them to receive (rich) text dropped on them, which is nice,
333 // but prevents us from associating a user-defined drop target with
334 // them as we need to unregister the old one first
335 //
336 // to make it work, we set m_dropTarget to this special value initially
337 // and check for it in our SetDropTarget()
338 m_dropTarget = wxRICHTEXT_DEFAULT_DROPTARGET;
339 }
340 #endif // wxUSE_DRAG_AND_DROP && wxUSE_RICHEDIT
341
342 return true;
343 }
344
345 // returns true if the platform should explicitly apply a theme border
346 bool wxTextCtrl::CanApplyThemeBorder() const
347 {
348 #ifdef __WXWINCE__
349 return false;
350 #else
351 // Standard text control already handles theming
352 return ((GetWindowStyle() & (wxTE_RICH|wxTE_RICH2)) != 0);
353 #endif
354 }
355
356 bool wxTextCtrl::MSWCreateText(const wxString& value,
357 const wxPoint& pos,
358 const wxSize& size)
359 {
360 // translate wxWin style flags to MSW ones
361 WXDWORD msStyle = MSWGetCreateWindowFlags();
362
363 // do create the control - either an EDIT or RICHEDIT
364 wxString windowClass = wxT("EDIT");
365
366 #if defined(__POCKETPC__) || defined(__SMARTPHONE__)
367 // A control that capitalizes the first letter
368 if ( HasFlag(wxTE_CAPITALIZE) )
369 windowClass = wxT("CAPEDIT");
370 #endif
371
372 #if wxUSE_RICHEDIT
373 if ( m_windowStyle & wxTE_AUTO_URL )
374 {
375 // automatic URL detection only works in RichEdit 2.0+
376 m_windowStyle |= wxTE_RICH2;
377 }
378
379 if ( m_windowStyle & wxTE_RICH2 )
380 {
381 // using richedit 2.0 implies using wxTE_RICH
382 m_windowStyle |= wxTE_RICH;
383 }
384
385 // we need to load the richedit DLL before creating the rich edit control
386 if ( m_windowStyle & wxTE_RICH )
387 {
388 // versions 2.0, 3.0 and 4.1 of rich edit are mostly compatible with
389 // each other but not with version 1.0, so we have separate flags for
390 // the version 1.0 and the others (and so m_verRichEdit may be 0 (plain
391 // EDIT control), 1 for version 1.0 or 2 for any higher version)
392 //
393 // notice that 1.0 has no Unicode support at all so in Unicode build we
394 // must use another version
395
396 #if wxUSE_UNICODE
397 m_verRichEdit = 2;
398 #else // !wxUSE_UNICODE
399 m_verRichEdit = m_windowStyle & wxTE_RICH2 ? 2 : 1;
400 #endif // wxUSE_UNICODE/!wxUSE_UNICODE
401
402 #if wxUSE_INKEDIT
403 // First test if we can load an ink edit control. Normally, all edit
404 // controls will be made ink edit controls if a tablet environment is
405 // found (or if msw.inkedit != 0 and the InkEd.dll is present).
406 // However, an application can veto ink edit controls by either specifying
407 // msw.inkedit = 0 or by removing wxTE_RICH[2] from the style.
408 //
409 if ((wxSystemSettings::HasFeature(wxSYS_TABLET_PRESENT) || wxSystemOptions::GetOptionInt(wxT("msw.inkedit")) != 0) &&
410 !(wxSystemOptions::HasOption(wxT("msw.inkedit")) && wxSystemOptions::GetOptionInt(wxT("msw.inkedit")) == 0))
411 {
412 if (wxRichEditModule::LoadInkEdit())
413 {
414 windowClass = INKEDIT_CLASS;
415
416 #if wxUSE_INKEDIT && wxUSE_RICHEDIT
417 m_isInkEdit = 1;
418 #endif
419
420 // Fake rich text version for other calls
421 m_verRichEdit = 2;
422 }
423 }
424 #endif
425
426 if (!IsInkEdit())
427 {
428 if ( m_verRichEdit == 2 )
429 {
430 if ( wxRichEditModule::Load(wxRichEditModule::Version_41) )
431 {
432 // yes, class name for version 4.1 really is 5.0
433 windowClass = _T("RICHEDIT50W");
434 }
435 else if ( wxRichEditModule::Load(wxRichEditModule::Version_2or3) )
436 {
437 windowClass = _T("RichEdit20")
438 #if wxUSE_UNICODE
439 _T("W");
440 #else // ANSI
441 _T("A");
442 #endif // Unicode/ANSI
443 }
444 else // failed to load msftedit.dll and riched20.dll
445 {
446 m_verRichEdit = 1;
447 }
448 }
449
450 if ( m_verRichEdit == 1 )
451 {
452 if ( wxRichEditModule::Load(wxRichEditModule::Version_1) )
453 {
454 windowClass = _T("RICHEDIT");
455 }
456 else // failed to load any richedit control DLL
457 {
458 // only give the error msg once if the DLL can't be loaded
459 static bool s_errorGiven = false; // MT ok as only used by GUI
460
461 if ( !s_errorGiven )
462 {
463 wxLogError(_("Impossible to create a rich edit control, using simple text control instead. Please reinstall riched32.dll"));
464
465 s_errorGiven = true;
466 }
467
468 m_verRichEdit = 0;
469 }
470 }
471 } // !useInkEdit
472 }
473 #endif // wxUSE_RICHEDIT
474
475 // we need to turn '\n's into "\r\n"s for the multiline controls
476 wxString valueWin;
477 if ( m_windowStyle & wxTE_MULTILINE )
478 {
479 valueWin = wxTextFile::Translate(value, wxTextFileType_Dos);
480 }
481 else // single line
482 {
483 valueWin = value;
484 }
485
486 if ( !MSWCreateControl(windowClass.wx_str(), msStyle, pos, size, valueWin) )
487 return false;
488
489 #if wxUSE_RICHEDIT
490 if (IsRich())
491 {
492 #if wxUSE_INKEDIT
493 if (IsInkEdit())
494 {
495 // Pass IEM_InsertText (0) as wParam, in order to have the ink always
496 // converted to text.
497 ::SendMessage(GetHwnd(), EM_SETINKINSERTMODE, 0, 0);
498
499 // Make sure the mouse can be used for input
500 ::SendMessage(GetHwnd(), EM_SETUSEMOUSEFORINPUT, 1, 0);
501 }
502 #endif
503
504 // enable the events we're interested in: we want to get EN_CHANGE as
505 // for the normal controls
506 LPARAM mask = ENM_CHANGE;
507
508 if (GetRichVersion() == 1 && !IsInkEdit())
509 {
510 // we also need EN_MSGFILTER for richedit 1.0 for the reasons
511 // explained in its handler
512 mask |= ENM_MOUSEEVENTS;
513
514 // we also need to force the appearance of the vertical scrollbar
515 // initially as otherwise the control doesn't refresh correctly
516 // after resize: but once the vertical scrollbar had been shown
517 // (even if it's subsequently hidden) it does
518 //
519 // this is clearly a bug and for now it has been only noticed under
520 // Windows XP, so if we're sure it works correctly under other
521 // systems we could do this only for XP
522 SetSize(-1, 1); // 1 is small enough to force vert scrollbar
523 SetInitialSize(size);
524 }
525 else if ( m_windowStyle & wxTE_AUTO_URL )
526 {
527 mask |= ENM_LINK;
528
529 ::SendMessage(GetHwnd(), EM_AUTOURLDETECT, TRUE, 0);
530 }
531
532 ::SendMessage(GetHwnd(), EM_SETEVENTMASK, 0, mask);
533 }
534 #endif // wxUSE_RICHEDIT
535
536 #ifndef __WXWINCE__
537 // Without this, if we pass the size in the constructor and then don't change it,
538 // the themed borders will be drawn incorrectly.
539 SetWindowPos(GetHwnd(), NULL, 0, 0, 0, 0,
540 SWP_NOZORDER|SWP_NOMOVE|SWP_NOSIZE|SWP_NOACTIVATE|
541 SWP_FRAMECHANGED);
542 #endif
543
544 return true;
545 }
546
547 // Make sure the window style (etc.) reflects the HWND style (roughly)
548 void wxTextCtrl::AdoptAttributesFromHWND()
549 {
550 wxWindow::AdoptAttributesFromHWND();
551
552 HWND hWnd = GetHwnd();
553 long style = ::GetWindowLong(hWnd, GWL_STYLE);
554
555 // retrieve the style to see whether this is an edit or richedit ctrl
556 #if wxUSE_RICHEDIT
557 wxString classname = wxGetWindowClass(GetHWND());
558
559 if ( classname.IsSameAs(_T("EDIT"), false /* no case */) )
560 {
561 m_verRichEdit = 0;
562 }
563 else // rich edit?
564 {
565 wxChar c;
566 if ( wxSscanf(classname, _T("RichEdit%d0%c"), &m_verRichEdit, &c) != 2 )
567 {
568 wxLogDebug(_T("Unknown edit control '%s'."), classname.c_str());
569
570 m_verRichEdit = 0;
571 }
572 }
573 #endif // wxUSE_RICHEDIT
574
575 if (style & ES_MULTILINE)
576 m_windowStyle |= wxTE_MULTILINE;
577 if (style & ES_PASSWORD)
578 m_windowStyle |= wxTE_PASSWORD;
579 if (style & ES_READONLY)
580 m_windowStyle |= wxTE_READONLY;
581 if (style & ES_WANTRETURN)
582 m_windowStyle |= wxTE_PROCESS_ENTER;
583 if (style & ES_CENTER)
584 m_windowStyle |= wxTE_CENTRE;
585 if (style & ES_RIGHT)
586 m_windowStyle |= wxTE_RIGHT;
587 }
588
589 WXDWORD wxTextCtrl::MSWGetStyle(long style, WXDWORD *exstyle) const
590 {
591 long msStyle = wxControl::MSWGetStyle(style, exstyle);
592
593 // styles which we always add by default
594 if ( style & wxTE_MULTILINE )
595 {
596 msStyle |= ES_MULTILINE | ES_WANTRETURN;
597 if ( !(style & wxTE_NO_VSCROLL) )
598 {
599 // always adjust the vertical scrollbar automatically if we have it
600 msStyle |= WS_VSCROLL | ES_AUTOVSCROLL;
601
602 #if wxUSE_RICHEDIT
603 // we have to use this style for the rich edit controls because
604 // without it the vertical scrollbar never appears at all in
605 // richedit 3.0 because of our ECO_NOHIDESEL hack (search for it)
606 if ( style & wxTE_RICH2 )
607 {
608 msStyle |= ES_DISABLENOSCROLL;
609 }
610 #endif // wxUSE_RICHEDIT
611 }
612
613 style |= wxTE_PROCESS_ENTER;
614 }
615 else // !multiline
616 {
617 // there is really no reason to not have this style for single line
618 // text controls
619 msStyle |= ES_AUTOHSCROLL;
620 }
621
622 // note that wxTE_DONTWRAP is the same as wxHSCROLL so if we have a horz
623 // scrollbar, there is no wrapping -- which makes sense
624 if ( style & wxTE_DONTWRAP )
625 {
626 // automatically scroll the control horizontally as necessary
627 //
628 // NB: ES_AUTOHSCROLL is needed for richedit controls or they don't
629 // show horz scrollbar at all, even in spite of WS_HSCROLL, and as
630 // it doesn't seem to do any harm for plain edit controls, add it
631 // always
632 msStyle |= WS_HSCROLL | ES_AUTOHSCROLL;
633 }
634
635 if ( style & wxTE_READONLY )
636 msStyle |= ES_READONLY;
637
638 if ( style & wxTE_PASSWORD )
639 msStyle |= ES_PASSWORD;
640
641 if ( style & wxTE_NOHIDESEL )
642 msStyle |= ES_NOHIDESEL;
643
644 // note that we can't do do "& wxTE_LEFT" as wxTE_LEFT == 0
645 if ( style & wxTE_CENTRE )
646 msStyle |= ES_CENTER;
647 else if ( style & wxTE_RIGHT )
648 msStyle |= ES_RIGHT;
649 else
650 msStyle |= ES_LEFT; // ES_LEFT is 0 as well but for consistency...
651
652 return msStyle;
653 }
654
655 void wxTextCtrl::SetWindowStyleFlag(long style)
656 {
657 // changing the alignment of the control dynamically works under Win2003
658 // (but not older Windows version: it seems to work under some versions of
659 // XP but not other ones, and we have no way to determine it so be
660 // conservative here) and only for plain EDIT controls (not RICH ones) and
661 // we have to recreate the control to make it always work
662 if ( IsRich() || wxGetWinVersion() < wxWinVersion_2003 )
663 {
664 const long alignMask = wxTE_LEFT | wxTE_CENTRE | wxTE_RIGHT;
665 if ( (style & alignMask) != (GetWindowStyle() & alignMask) )
666 {
667 const wxString value = GetValue();
668 const wxPoint pos = GetPosition();
669 const wxSize size = GetSize();
670
671 // delete the old window
672 HWND hwnd = GetHwnd();
673 DissociateHandle();
674 ::DestroyWindow(hwnd);
675
676 // create the new one with the updated flags
677 m_windowStyle = style;
678 MSWCreateText(value, pos, size);
679
680 // and make sure it has the same attributes as before
681 if ( m_hasFont )
682 {
683 // calling SetFont(m_font) would do nothing as the code would
684 // notice that the font didn't change, so force it to believe
685 // that it did
686 wxFont font = m_font;
687 m_font = wxNullFont;
688 SetFont(font);
689 }
690
691 if ( m_hasFgCol )
692 {
693 wxColour colFg = m_foregroundColour;
694 m_foregroundColour = wxNullColour;
695 SetForegroundColour(colFg);
696 }
697
698 if ( m_hasBgCol )
699 {
700 wxColour colBg = m_backgroundColour;
701 m_backgroundColour = wxNullColour;
702 SetBackgroundColour(colBg);
703 }
704
705 // note that text styles are lost but this is probably not a big
706 // problem: if you use styles, you probably don't use nor change
707 // alignment flags anyhow
708
709 return;
710 }
711 }
712
713 #if wxUSE_RICHEDIT
714 // we have to deal with some styles separately because they can't be
715 // changed by simply calling SetWindowLong(GWL_STYLE) but can be changed
716 // using richedit-specific EM_SETOPTIONS
717 if ( IsRich() &&
718 ((style & wxTE_NOHIDESEL) != (GetWindowStyle() & wxTE_NOHIDESEL)) )
719 {
720 bool set = (style & wxTE_NOHIDESEL) != 0;
721
722 ::SendMessage(GetHwnd(), EM_SETOPTIONS, set ? ECOOP_OR : ECOOP_AND,
723 set ? ECO_NOHIDESEL : ~ECO_NOHIDESEL);
724 }
725 #endif // wxUSE_RICHEDIT
726
727 wxControl::SetWindowStyleFlag(style);
728 }
729
730 // ----------------------------------------------------------------------------
731 // set/get the controls text
732 // ----------------------------------------------------------------------------
733
734 bool wxTextCtrl::IsEmpty() const
735 {
736 // this is an optimization for multiline controls containing a lot of text
737 if ( IsMultiLine() && GetNumberOfLines() != 1 )
738 return false;
739
740 return wxTextCtrlBase::IsEmpty();
741 }
742
743 wxString wxTextCtrl::GetValue() const
744 {
745 // range 0..-1 is special for GetRange() and means to retrieve all text
746 return GetRange(0, -1);
747 }
748
749 wxString wxTextCtrl::GetRange(long from, long to) const
750 {
751 wxString str;
752
753 if ( from >= to && to != -1 )
754 {
755 // nothing to retrieve
756 return str;
757 }
758
759 #if wxUSE_RICHEDIT
760 if ( IsRich() )
761 {
762 int len = GetWindowTextLength(GetHwnd());
763 if ( len > from )
764 {
765 if ( to == -1 )
766 to = len;
767
768 #if !wxUSE_UNICODE
769 // we must use EM_STREAMOUT if we don't want to lose all characters
770 // not representable in the current character set (EM_GETTEXTRANGE
771 // simply replaces them with question marks...)
772 if ( GetRichVersion() > 1 )
773 {
774 // we must have some encoding, otherwise any 8bit chars in the
775 // control are simply *lost* (replaced by '?')
776 wxFontEncoding encoding = wxFONTENCODING_SYSTEM;
777
778 wxFont font = m_defaultStyle.GetFont();
779 if ( !font.Ok() )
780 font = GetFont();
781
782 if ( font.Ok() )
783 {
784 encoding = font.GetEncoding();
785 }
786
787 #if wxUSE_INTL
788 if ( encoding == wxFONTENCODING_SYSTEM )
789 {
790 encoding = wxLocale::GetSystemEncoding();
791 }
792 #endif // wxUSE_INTL
793
794 if ( encoding == wxFONTENCODING_SYSTEM )
795 {
796 encoding = wxFONTENCODING_ISO8859_1;
797 }
798
799 str = StreamOut(encoding);
800
801 if ( !str.empty() )
802 {
803 // we have to manually extract the required part, luckily
804 // this is easy in this case as EOL characters in str are
805 // just LFs because we remove CRs in wxRichEditStreamOut
806 str = str.Mid(from, to - from);
807 }
808 }
809
810 // StreamOut() wasn't used or failed, try to do it in normal way
811 if ( str.empty() )
812 #endif // !wxUSE_UNICODE
813 {
814 // alloc one extra WORD as needed by the control
815 wxStringBuffer tmp(str, ++len);
816 wxChar *p = tmp;
817
818 TEXTRANGE textRange;
819 textRange.chrg.cpMin = from;
820 textRange.chrg.cpMax = to;
821 textRange.lpstrText = p;
822
823 (void)::SendMessage(GetHwnd(), EM_GETTEXTRANGE,
824 0, (LPARAM)&textRange);
825
826 if ( m_verRichEdit > 1 )
827 {
828 // RichEdit 2.0 uses just CR ('\r') for the
829 // newlines which is neither Unix nor Windows
830 // style - convert it to something reasonable
831 for ( ; *p; p++ )
832 {
833 if ( *p == _T('\r') )
834 *p = _T('\n');
835 }
836 }
837 }
838
839 if ( m_verRichEdit == 1 )
840 {
841 // convert to the canonical form - see comment below
842 str = wxTextFile::Translate(str, wxTextFileType_Unix);
843 }
844 }
845 //else: no text at all, leave the string empty
846 }
847 else
848 #endif // wxUSE_RICHEDIT
849 {
850 // retrieve all text
851 str = wxGetWindowText(GetHWND());
852
853 // need only a range?
854 if ( from < to )
855 {
856 str = str.Mid(from, to - from);
857 }
858
859 // WM_GETTEXT uses standard DOS CR+LF (\r\n) convention - convert to the
860 // canonical one (same one as above) for consistency with the other kinds
861 // of controls and, more importantly, with the other ports
862 str = wxTextFile::Translate(str, wxTextFileType_Unix);
863 }
864
865 return str;
866 }
867
868 void wxTextCtrl::DoSetValue(const wxString& value, int flags)
869 {
870 // if the text is long enough, it's faster to just set it instead of first
871 // comparing it with the old one (chances are that it will be different
872 // anyhow, this comparison is there to avoid flicker for small single-line
873 // edit controls mostly)
874 if ( (value.length() > 0x400) || (value != GetValue()) )
875 {
876 DoWriteText(value, flags /* doesn't include SelectionOnly here */);
877
878 // mark the control as being not dirty - we changed its text, not the
879 // user
880 DiscardEdits();
881
882 // for compatibility, don't move the cursor when doing SetValue()
883 SetInsertionPoint(0);
884 }
885 else // same text
886 {
887 // still reset the modified flag even if the value didn't really change
888 // because now it comes from the program and not the user (and do it
889 // before generating the event so that the event handler could get the
890 // expected value from IsModified())
891 DiscardEdits();
892
893 // still send an event for consistency
894 if (flags & SetValue_SendEvent)
895 SendUpdateEvent();
896 }
897 }
898
899 #if wxUSE_RICHEDIT && (!wxUSE_UNICODE || wxUSE_UNICODE_MSLU)
900
901 // TODO: using memcpy() would improve performance a lot for big amounts of text
902
903 DWORD CALLBACK
904 wxRichEditStreamIn(DWORD dwCookie, BYTE *buf, LONG cb, LONG *pcb)
905 {
906 *pcb = 0;
907
908 const wchar_t ** const ppws = (const wchar_t **)dwCookie;
909
910 wchar_t *wbuf = (wchar_t *)buf;
911 const wchar_t *wpc = *ppws;
912 while ( cb && *wpc )
913 {
914 *wbuf++ = *wpc++;
915
916 cb -= sizeof(wchar_t);
917 (*pcb) += sizeof(wchar_t);
918 }
919
920 *ppws = wpc;
921
922 return 0;
923 }
924
925 // helper struct used to pass parameters from wxTextCtrl to wxRichEditStreamOut
926 struct wxStreamOutData
927 {
928 wchar_t *wpc;
929 size_t len;
930 };
931
932 DWORD CALLBACK
933 wxRichEditStreamOut(DWORD_PTR dwCookie, BYTE *buf, LONG cb, LONG *pcb)
934 {
935 *pcb = 0;
936
937 wxStreamOutData *data = (wxStreamOutData *)dwCookie;
938
939 const wchar_t *wbuf = (const wchar_t *)buf;
940 wchar_t *wpc = data->wpc;
941 while ( cb )
942 {
943 wchar_t wch = *wbuf++;
944
945 // turn "\r\n" into "\n" on the fly
946 if ( wch != L'\r' )
947 *wpc++ = wch;
948 else
949 data->len--;
950
951 cb -= sizeof(wchar_t);
952 (*pcb) += sizeof(wchar_t);
953 }
954
955 data->wpc = wpc;
956
957 return 0;
958 }
959
960
961 #if wxUSE_UNICODE_MSLU
962 #define UNUSED_IF_MSLU(param)
963 #else
964 #define UNUSED_IF_MSLU(param) param
965 #endif
966
967 bool
968 wxTextCtrl::StreamIn(const wxString& value,
969 wxFontEncoding UNUSED_IF_MSLU(encoding),
970 bool selectionOnly)
971 {
972 #if wxUSE_UNICODE_MSLU
973 const wchar_t *wpc = value.c_str();
974 #else // !wxUSE_UNICODE_MSLU
975 wxCSConv conv(encoding);
976
977 const size_t len = conv.MB2WC(NULL, value.mb_str(), value.length());
978
979 if (len == wxCONV_FAILED)
980 return false;
981
982 #if wxUSE_WCHAR_T
983 wxWCharBuffer wchBuf(len);
984 wchar_t *wpc = wchBuf.data();
985 #else
986 wchar_t *wchBuf = (wchar_t *)malloc((len + 1)*sizeof(wchar_t));
987 wchar_t *wpc = wchBuf;
988 #endif
989
990 conv.MB2WC(wpc, value.mb_str(), value.length());
991 #endif // wxUSE_UNICODE_MSLU
992
993 // finally, stream it in the control
994 EDITSTREAM eds;
995 wxZeroMemory(eds);
996 eds.dwCookie = (DWORD)&wpc;
997 // the cast below is needed for broken (very) old mingw32 headers
998 eds.pfnCallback = (EDITSTREAMCALLBACK)wxRichEditStreamIn;
999
1000 // same problem as in DoWriteText(): we can get multiple events here
1001 UpdatesCountFilter ucf(m_updatesCount);
1002
1003 ::SendMessage(GetHwnd(), EM_STREAMIN,
1004 SF_TEXT |
1005 SF_UNICODE |
1006 (selectionOnly ? SFF_SELECTION : 0),
1007 (LPARAM)&eds);
1008
1009 // It's okay for EN_UPDATE to not be sent if the selection is empty and
1010 // the text is empty, otherwise warn the programmer about it.
1011 wxASSERT_MSG( ucf.GotUpdate() || ( !HasSelection() && value.empty() ),
1012 _T("EM_STREAMIN didn't send EN_UPDATE?") );
1013
1014 if ( eds.dwError )
1015 {
1016 wxLogLastError(_T("EM_STREAMIN"));
1017 }
1018
1019 #if !wxUSE_WCHAR_T
1020 free(wchBuf);
1021 #endif // !wxUSE_WCHAR_T
1022
1023 return true;
1024 }
1025
1026 #if !wxUSE_UNICODE_MSLU
1027
1028 wxString
1029 wxTextCtrl::StreamOut(wxFontEncoding encoding, bool selectionOnly) const
1030 {
1031 wxString out;
1032
1033 const int len = GetWindowTextLength(GetHwnd());
1034
1035 #if wxUSE_WCHAR_T
1036 wxWCharBuffer wchBuf(len);
1037 wchar_t *wpc = wchBuf.data();
1038 #else
1039 wchar_t *wchBuf = (wchar_t *)malloc((len + 1)*sizeof(wchar_t));
1040 wchar_t *wpc = wchBuf;
1041 #endif
1042
1043 wxStreamOutData data;
1044 data.wpc = wpc;
1045 data.len = len;
1046
1047 EDITSTREAM eds;
1048 wxZeroMemory(eds);
1049 eds.dwCookie = (DWORD)&data;
1050 eds.pfnCallback = wxRichEditStreamOut;
1051
1052 ::SendMessage
1053 (
1054 GetHwnd(),
1055 EM_STREAMOUT,
1056 SF_TEXT | SF_UNICODE | (selectionOnly ? SFF_SELECTION : 0),
1057 (LPARAM)&eds
1058 );
1059
1060 if ( eds.dwError )
1061 {
1062 wxLogLastError(_T("EM_STREAMOUT"));
1063 }
1064 else // streamed out ok
1065 {
1066 // NUL-terminate the string because its length could have been
1067 // decreased by wxRichEditStreamOut
1068 *(wchBuf.data() + data.len) = L'\0';
1069
1070 // now convert to the given encoding (this is a possibly lossful
1071 // conversion but what else can we do)
1072 wxCSConv conv(encoding);
1073 size_t lenNeeded = conv.WC2MB(NULL, wchBuf, 0);
1074
1075 if ( lenNeeded != wxCONV_FAILED && lenNeeded++ )
1076 {
1077 conv.WC2MB(wxStringBuffer(out, lenNeeded), wchBuf, lenNeeded);
1078 }
1079 }
1080
1081 #if !wxUSE_WCHAR_T
1082 free(wchBuf);
1083 #endif // !wxUSE_WCHAR_T
1084
1085 return out;
1086 }
1087
1088 #endif // !wxUSE_UNICODE_MSLU
1089
1090 #endif // wxUSE_RICHEDIT
1091
1092 void wxTextCtrl::WriteText(const wxString& value)
1093 {
1094 DoWriteText(value);
1095 }
1096
1097 void wxTextCtrl::DoWriteText(const wxString& value, int flags)
1098 {
1099 bool selectionOnly = (flags & SetValue_SelectionOnly) != 0;
1100 wxString valueDos;
1101 if ( m_windowStyle & wxTE_MULTILINE )
1102 valueDos = wxTextFile::Translate(value, wxTextFileType_Dos);
1103 else
1104 valueDos = value;
1105
1106 #if wxUSE_RICHEDIT
1107 // there are several complications with the rich edit controls here
1108 bool done = false;
1109 if ( IsRich() )
1110 {
1111 // first, ensure that the new text will be in the default style
1112 if ( !m_defaultStyle.IsDefault() )
1113 {
1114 long start, end;
1115 GetSelection(&start, &end);
1116 SetStyle(start, end, m_defaultStyle);
1117 }
1118
1119 #if wxUSE_UNICODE_MSLU
1120 // RichEdit doesn't have Unicode version of EM_REPLACESEL on Win9x,
1121 // but EM_STREAMIN works
1122 if ( wxUsingUnicowsDll() && GetRichVersion() > 1 )
1123 {
1124 done = StreamIn(valueDos, wxFONTENCODING_SYSTEM, selectionOnly);
1125 }
1126 #endif // wxUSE_UNICODE_MSLU
1127
1128 #if !wxUSE_UNICODE
1129 // next check if the text we're inserting must be shown in a non
1130 // default charset -- this only works for RichEdit > 1.0
1131 if ( GetRichVersion() > 1 )
1132 {
1133 wxFont font = m_defaultStyle.GetFont();
1134 if ( !font.Ok() )
1135 font = GetFont();
1136
1137 if ( font.Ok() )
1138 {
1139 wxFontEncoding encoding = font.GetEncoding();
1140 if ( encoding != wxFONTENCODING_SYSTEM )
1141 {
1142 // we have to use EM_STREAMIN to force richedit control 2.0+
1143 // to show any text in the non default charset -- otherwise
1144 // it thinks it knows better than we do and always shows it
1145 // in the default one
1146 done = StreamIn(valueDos, encoding, selectionOnly);
1147 }
1148 }
1149 }
1150 #endif // !wxUSE_UNICODE
1151 }
1152
1153 if ( !done )
1154 #endif // wxUSE_RICHEDIT
1155 {
1156 // in some cases we get 2 EN_CHANGE notifications after the SendMessage
1157 // call (this happens for plain EDITs with EM_REPLACESEL and under some
1158 // -- undetermined -- conditions with rich edit) and sometimes we don't
1159 // get any events at all (plain EDIT with WM_SETTEXT), so ensure that
1160 // we generate exactly one of them by ignoring all but the first one in
1161 // SendUpdateEvent() and generating one ourselves if we hadn't got any
1162 // notifications from Windows
1163 if ( !(flags & SetValue_SendEvent) )
1164 m_updatesCount = -2; // suppress any update event
1165
1166 UpdatesCountFilter ucf(m_updatesCount);
1167
1168 ::SendMessage(GetHwnd(), selectionOnly ? EM_REPLACESEL : WM_SETTEXT,
1169 // EM_REPLACESEL takes 1 to indicate the operation should be redoable
1170 selectionOnly ? 1 : 0, (LPARAM)valueDos.wx_str());
1171
1172 if ( !ucf.GotUpdate() && (flags & SetValue_SendEvent) )
1173 {
1174 SendUpdateEvent();
1175 }
1176 }
1177 }
1178
1179 void wxTextCtrl::AppendText(const wxString& text)
1180 {
1181 wxTextEntry::AppendText(text);
1182
1183 #if wxUSE_RICHEDIT
1184 // don't do this if we're frozen, saves some time
1185 if ( !IsFrozen() && IsMultiLine() && GetRichVersion() > 1 )
1186 {
1187 // setting the caret to the end and showing it simply doesn't work for
1188 // RichEdit 2.0 -- force it to still do what we want
1189 ::SendMessage(GetHwnd(), EM_LINESCROLL, 0, GetNumberOfLines());
1190 }
1191 #endif // wxUSE_RICHEDIT
1192 }
1193
1194 void wxTextCtrl::Clear()
1195 {
1196 ::SetWindowText(GetHwnd(), wxEmptyString);
1197
1198 if ( IsMultiLine() && !IsRich() )
1199 {
1200 // rich edit controls send EN_UPDATE from WM_SETTEXT handler themselves
1201 // but the normal ones don't -- make Clear() behaviour consistent by
1202 // always sending this event
1203 SendUpdateEvent();
1204 }
1205 }
1206
1207 #ifdef __WIN32__
1208
1209 bool wxTextCtrl::EmulateKeyPress(const wxKeyEvent& event)
1210 {
1211 SetFocus();
1212
1213 size_t lenOld = GetValue().length();
1214
1215 wxUint32 code = event.GetRawKeyCode();
1216 ::keybd_event((BYTE)code, 0, 0 /* key press */, 0);
1217 ::keybd_event((BYTE)code, 0, KEYEVENTF_KEYUP, 0);
1218
1219 // assume that any alphanumeric key changes the total number of characters
1220 // in the control - this should work in 99% of cases
1221 return GetValue().length() != lenOld;
1222 }
1223
1224 #endif // __WIN32__
1225
1226 // ----------------------------------------------------------------------------
1227 // Accessors
1228 // ----------------------------------------------------------------------------
1229
1230 void wxTextCtrl::SetInsertionPointEnd()
1231 {
1232 // we must not do anything if the caret is already there because calling
1233 // SetInsertionPoint() thaws the controls if Freeze() had been called even
1234 // if it doesn't actually move the caret anywhere and so the simple fact of
1235 // doing it results in horrible flicker when appending big amounts of text
1236 // to the control in a few chunks (see DoAddText() test in the text sample)
1237 const wxTextPos lastPosition = GetLastPosition();
1238 if ( GetInsertionPoint() == lastPosition )
1239 {
1240 return;
1241 }
1242
1243 SetInsertionPoint(lastPosition);
1244 }
1245
1246 long wxTextCtrl::GetInsertionPoint() const
1247 {
1248 #if wxUSE_RICHEDIT
1249 if ( IsRich() )
1250 {
1251 CHARRANGE range;
1252 range.cpMin = 0;
1253 range.cpMax = 0;
1254 ::SendMessage(GetHwnd(), EM_EXGETSEL, 0, (LPARAM) &range);
1255 return range.cpMin;
1256 }
1257 #endif // wxUSE_RICHEDIT
1258
1259 return wxTextEntry::GetInsertionPoint();
1260 }
1261
1262 wxTextPos wxTextCtrl::GetLastPosition() const
1263 {
1264 if ( IsMultiLine() )
1265 {
1266 int numLines = GetNumberOfLines();
1267 long posStartLastLine = XYToPosition(0, numLines - 1);
1268
1269 long lenLastLine = GetLengthOfLineContainingPos(posStartLastLine);
1270
1271 return posStartLastLine + lenLastLine;
1272 }
1273
1274 return wxTextEntry::GetLastPosition();
1275 }
1276
1277 // If the return values from and to are the same, there is no
1278 // selection.
1279 void wxTextCtrl::GetSelection(long *from, long *to) const
1280 {
1281 #if wxUSE_RICHEDIT
1282 if ( IsRich() )
1283 {
1284 CHARRANGE charRange;
1285 ::SendMessage(GetHwnd(), EM_EXGETSEL, 0, (LPARAM) &charRange);
1286
1287 *from = charRange.cpMin;
1288 *to = charRange.cpMax;
1289 }
1290 else
1291 #endif // !wxUSE_RICHEDIT
1292 {
1293 wxTextEntry::GetSelection(from, to);
1294 }
1295 }
1296
1297 // ----------------------------------------------------------------------------
1298 // selection
1299 // ----------------------------------------------------------------------------
1300
1301 void wxTextCtrl::DoSetSelection(long from, long to, int flags)
1302 {
1303 HWND hWnd = GetHwnd();
1304
1305 #if wxUSE_RICHEDIT
1306 if ( IsRich() )
1307 {
1308 CHARRANGE range;
1309 range.cpMin = from;
1310 range.cpMax = to;
1311 ::SendMessage(hWnd, EM_EXSETSEL, 0, (LPARAM)&range);
1312 }
1313 else
1314 #endif // wxUSE_RICHEDIT
1315 {
1316 wxTextEntry::DoSetSelection(from, to, flags);
1317 }
1318
1319 if ( (flags & SetSel_Scroll) && !IsFrozen() )
1320 {
1321 #if wxUSE_RICHEDIT
1322 // richedit 3.0 (i.e. the version living in riched20.dll distributed
1323 // with Windows 2000 and beyond) doesn't honour EM_SCROLLCARET when
1324 // emulating richedit 2.0 unless the control has focus or ECO_NOHIDESEL
1325 // option is set (but it does work ok in richedit 1.0 mode...)
1326 //
1327 // so to make it work we either need to give focus to it here which
1328 // will probably create many problems (dummy focus events; window
1329 // containing the text control being brought to foreground
1330 // unexpectedly; ...) or to temporarily set ECO_NOHIDESEL which may
1331 // create other problems too -- and in fact it does because if we turn
1332 // on/off this style while appending the text to the control, the
1333 // vertical scrollbar never appears in it even if we append tons of
1334 // text and to work around this the only solution I found was to use
1335 // ES_DISABLENOSCROLL
1336 //
1337 // this is very ugly but I don't see any other way to make this work
1338 long style = 0;
1339 if ( GetRichVersion() > 1 )
1340 {
1341 if ( !HasFlag(wxTE_NOHIDESEL) )
1342 {
1343 // setting ECO_NOHIDESEL also sets WS_VISIBLE and possibly
1344 // others, remember the style so we can reset it later if needed
1345 style = ::GetWindowLong(GetHwnd(), GWL_STYLE);
1346 ::SendMessage(GetHwnd(), EM_SETOPTIONS,
1347 ECOOP_OR, ECO_NOHIDESEL);
1348 }
1349 //else: everything is already ok
1350 }
1351 #endif // wxUSE_RICHEDIT
1352
1353 ::SendMessage(hWnd, EM_SCROLLCARET, 0, (LPARAM)0);
1354
1355 #if wxUSE_RICHEDIT
1356 // restore ECO_NOHIDESEL if we changed it
1357 if ( GetRichVersion() > 1 && !HasFlag(wxTE_NOHIDESEL) )
1358 {
1359 ::SendMessage(GetHwnd(), EM_SETOPTIONS,
1360 ECOOP_AND, ~ECO_NOHIDESEL);
1361 if ( style != ::GetWindowLong(GetHwnd(), GWL_STYLE) )
1362 ::SetWindowLong(GetHwnd(), GWL_STYLE, style);
1363 }
1364 #endif // wxUSE_RICHEDIT
1365 }
1366 }
1367
1368 // ----------------------------------------------------------------------------
1369 // Working with files
1370 // ----------------------------------------------------------------------------
1371
1372 bool wxTextCtrl::DoLoadFile(const wxString& file, int fileType)
1373 {
1374 if ( wxTextCtrlBase::DoLoadFile(file, fileType) )
1375 {
1376 // update the size limit if needed
1377 AdjustSpaceLimit();
1378
1379 return true;
1380 }
1381
1382 return false;
1383 }
1384
1385 // ----------------------------------------------------------------------------
1386 // dirty status
1387 // ----------------------------------------------------------------------------
1388
1389 bool wxTextCtrl::IsModified() const
1390 {
1391 return ::SendMessage(GetHwnd(), EM_GETMODIFY, 0, 0) != 0;
1392 }
1393
1394 void wxTextCtrl::MarkDirty()
1395 {
1396 ::SendMessage(GetHwnd(), EM_SETMODIFY, TRUE, 0);
1397 }
1398
1399 void wxTextCtrl::DiscardEdits()
1400 {
1401 ::SendMessage(GetHwnd(), EM_SETMODIFY, FALSE, 0);
1402 }
1403
1404 // ----------------------------------------------------------------------------
1405 // Positions <-> coords
1406 // ----------------------------------------------------------------------------
1407
1408 int wxTextCtrl::GetNumberOfLines() const
1409 {
1410 return (int)::SendMessage(GetHwnd(), EM_GETLINECOUNT, 0, 0);
1411 }
1412
1413 long wxTextCtrl::XYToPosition(long x, long y) const
1414 {
1415 // This gets the char index for the _beginning_ of this line
1416 long charIndex = ::SendMessage(GetHwnd(), EM_LINEINDEX, y, 0);
1417
1418 return charIndex + x;
1419 }
1420
1421 bool wxTextCtrl::PositionToXY(long pos, long *x, long *y) const
1422 {
1423 HWND hWnd = GetHwnd();
1424
1425 // This gets the line number containing the character
1426 long lineNo;
1427 #if wxUSE_RICHEDIT
1428 if ( IsRich() )
1429 {
1430 lineNo = ::SendMessage(hWnd, EM_EXLINEFROMCHAR, 0, pos);
1431 }
1432 else
1433 #endif // wxUSE_RICHEDIT
1434 {
1435 lineNo = ::SendMessage(hWnd, EM_LINEFROMCHAR, pos, 0);
1436 }
1437
1438 if ( lineNo == -1 )
1439 {
1440 // no such line
1441 return false;
1442 }
1443
1444 // This gets the char index for the _beginning_ of this line
1445 long charIndex = ::SendMessage(hWnd, EM_LINEINDEX, lineNo, 0);
1446 if ( charIndex == -1 )
1447 {
1448 return false;
1449 }
1450
1451 // The X position must therefore be the different between pos and charIndex
1452 if ( x )
1453 *x = pos - charIndex;
1454 if ( y )
1455 *y = lineNo;
1456
1457 return true;
1458 }
1459
1460 wxTextCtrlHitTestResult
1461 wxTextCtrl::HitTest(const wxPoint& pt, long *posOut) const
1462 {
1463 // first get the position from Windows
1464 LPARAM lParam;
1465
1466 #if wxUSE_RICHEDIT
1467 POINTL ptl;
1468 if ( IsRich() )
1469 {
1470 // for rich edit controls the position is passed iva the struct fields
1471 ptl.x = pt.x;
1472 ptl.y = pt.y;
1473 lParam = (LPARAM)&ptl;
1474 }
1475 else
1476 #endif // wxUSE_RICHEDIT
1477 {
1478 // for the plain ones, we are limited to 16 bit positions which are
1479 // combined in a single 32 bit value
1480 lParam = MAKELPARAM(pt.x, pt.y);
1481 }
1482
1483 LRESULT pos = ::SendMessage(GetHwnd(), EM_CHARFROMPOS, 0, lParam);
1484
1485 if ( pos == -1 )
1486 {
1487 // this seems to indicate an error...
1488 return wxTE_HT_UNKNOWN;
1489 }
1490
1491 #if wxUSE_RICHEDIT
1492 if ( !IsRich() )
1493 #endif // wxUSE_RICHEDIT
1494 {
1495 // for plain EDIT controls the higher word contains something else
1496 pos = LOWORD(pos);
1497 }
1498
1499
1500 // next determine where it is relatively to our point: EM_CHARFROMPOS
1501 // always returns the closest character but we need to be more precise, so
1502 // double check that we really are where it pretends
1503 POINTL ptReal;
1504
1505 #if wxUSE_RICHEDIT
1506 // FIXME: we need to distinguish between richedit 2 and 3 here somehow but
1507 // we don't know how to do it
1508 if ( IsRich() )
1509 {
1510 ::SendMessage(GetHwnd(), EM_POSFROMCHAR, (WPARAM)&ptReal, pos);
1511 }
1512 else
1513 #endif // wxUSE_RICHEDIT
1514 {
1515 LRESULT lRc = ::SendMessage(GetHwnd(), EM_POSFROMCHAR, pos, 0);
1516
1517 if ( lRc == -1 )
1518 {
1519 // this is apparently returned when pos corresponds to the last
1520 // position
1521 ptReal.x =
1522 ptReal.y = 0;
1523 }
1524 else
1525 {
1526 ptReal.x = LOWORD(lRc);
1527 ptReal.y = HIWORD(lRc);
1528 }
1529 }
1530
1531 wxTextCtrlHitTestResult rc;
1532
1533 if ( pt.y > ptReal.y + GetCharHeight() )
1534 rc = wxTE_HT_BELOW;
1535 else if ( pt.x > ptReal.x + GetCharWidth() )
1536 rc = wxTE_HT_BEYOND;
1537 else
1538 rc = wxTE_HT_ON_TEXT;
1539
1540 if ( posOut )
1541 *posOut = pos;
1542
1543 return rc;
1544 }
1545
1546 // ----------------------------------------------------------------------------
1547 //
1548 // ----------------------------------------------------------------------------
1549
1550 void wxTextCtrl::ShowPosition(long pos)
1551 {
1552 HWND hWnd = GetHwnd();
1553
1554 // To scroll to a position, we pass the number of lines and characters
1555 // to scroll *by*. This means that we need to:
1556 // (1) Find the line position of the current line.
1557 // (2) Find the line position of pos.
1558 // (3) Scroll by (pos - current).
1559 // For now, ignore the horizontal scrolling.
1560
1561 // Is this where scrolling is relative to - the line containing the caret?
1562 // Or is the first visible line??? Try first visible line.
1563 // int currentLineLineNo1 = (int)::SendMessage(hWnd, EM_LINEFROMCHAR, -1, 0L);
1564
1565 int currentLineLineNo = (int)::SendMessage(hWnd, EM_GETFIRSTVISIBLELINE, 0, 0);
1566
1567 int specifiedLineLineNo = (int)::SendMessage(hWnd, EM_LINEFROMCHAR, pos, 0);
1568
1569 int linesToScroll = specifiedLineLineNo - currentLineLineNo;
1570
1571 if (linesToScroll != 0)
1572 ::SendMessage(hWnd, EM_LINESCROLL, 0, linesToScroll);
1573 }
1574
1575 long wxTextCtrl::GetLengthOfLineContainingPos(long pos) const
1576 {
1577 return ::SendMessage(GetHwnd(), EM_LINELENGTH, pos, 0);
1578 }
1579
1580 int wxTextCtrl::GetLineLength(long lineNo) const
1581 {
1582 long pos = XYToPosition(0, lineNo);
1583
1584 return GetLengthOfLineContainingPos(pos);
1585 }
1586
1587 wxString wxTextCtrl::GetLineText(long lineNo) const
1588 {
1589 size_t len = (size_t)GetLineLength(lineNo) + 1;
1590
1591 // there must be at least enough place for the length WORD in the
1592 // buffer
1593 len += sizeof(WORD);
1594
1595 wxString str;
1596 {
1597 wxStringBufferLength tmp(str, len);
1598 wxChar *buf = tmp;
1599
1600 *(WORD *)buf = (WORD)len;
1601 len = (size_t)::SendMessage(GetHwnd(), EM_GETLINE, lineNo, (LPARAM)buf);
1602
1603 #if wxUSE_RICHEDIT
1604 if ( IsRich() )
1605 {
1606 // remove the '\r' returned by the rich edit control, the user code
1607 // should never see it
1608 if ( buf[len - 2] == _T('\r') && buf[len - 1] == _T('\n') )
1609 {
1610 // richedit 1.0 uses "\r\n" as line terminator, so remove "\r"
1611 // here and "\n" below
1612 buf[len - 2] = _T('\n');
1613 len--;
1614 }
1615 else if ( buf[len - 1] == _T('\r') )
1616 {
1617 // richedit 2.0+ uses only "\r", replace it with "\n"
1618 buf[len - 1] = _T('\n');
1619 }
1620 }
1621 #endif // wxUSE_RICHEDIT
1622
1623 // remove the '\n' at the end, if any (this is how this function is
1624 // supposed to work according to the docs)
1625 if ( buf[len - 1] == _T('\n') )
1626 {
1627 len--;
1628 }
1629
1630 buf[len] = 0;
1631 tmp.SetLength(len);
1632 }
1633
1634 return str;
1635 }
1636
1637 void wxTextCtrl::SetMaxLength(unsigned long len)
1638 {
1639 #if wxUSE_RICHEDIT
1640 if ( IsRich() )
1641 {
1642 ::SendMessage(GetHwnd(), EM_EXLIMITTEXT, 0, len ? len : 0x7fffffff);
1643 }
1644 else
1645 #endif // wxUSE_RICHEDIT
1646 {
1647 wxTextEntry::SetMaxLength(len);
1648 }
1649 }
1650
1651 // ----------------------------------------------------------------------------
1652 // Undo/redo
1653 // ----------------------------------------------------------------------------
1654
1655 void wxTextCtrl::Redo()
1656 {
1657 #if wxUSE_RICHEDIT
1658 if ( GetRichVersion() > 1 )
1659 {
1660 ::SendMessage(GetHwnd(), EM_REDO, 0, 0);
1661 return;
1662 }
1663 #endif // wxUSE_RICHEDIT
1664
1665 wxTextEntry::Redo();
1666 }
1667
1668 bool wxTextCtrl::CanRedo() const
1669 {
1670 #if wxUSE_RICHEDIT
1671 if ( GetRichVersion() > 1 )
1672 return ::SendMessage(GetHwnd(), EM_CANREDO, 0, 0) != 0;
1673 #endif // wxUSE_RICHEDIT
1674
1675 return wxTextEntry::CanRedo();
1676 }
1677
1678 // ----------------------------------------------------------------------------
1679 // caret handling (Windows only)
1680 // ----------------------------------------------------------------------------
1681
1682 bool wxTextCtrl::ShowNativeCaret(bool show)
1683 {
1684 if ( show != m_isNativeCaretShown )
1685 {
1686 if ( !(show ? ::ShowCaret(GetHwnd()) : ::HideCaret(GetHwnd())) )
1687 {
1688 // not an error, may simply indicate that it's not shown/hidden
1689 // yet (i.e. it had been hidden/shown 2 times before)
1690 return false;
1691 }
1692
1693 m_isNativeCaretShown = show;
1694 }
1695
1696 return true;
1697 }
1698
1699 // ----------------------------------------------------------------------------
1700 // implementation details
1701 // ----------------------------------------------------------------------------
1702
1703 void wxTextCtrl::Command(wxCommandEvent & event)
1704 {
1705 SetValue(event.GetString());
1706 ProcessCommand (event);
1707 }
1708
1709 void wxTextCtrl::OnDropFiles(wxDropFilesEvent& event)
1710 {
1711 // By default, load the first file into the text window.
1712 if (event.GetNumberOfFiles() > 0)
1713 {
1714 LoadFile(event.GetFiles()[0]);
1715 }
1716 }
1717
1718 // ----------------------------------------------------------------------------
1719 // kbd input processing
1720 // ----------------------------------------------------------------------------
1721
1722 bool wxTextCtrl::MSWShouldPreProcessMessage(WXMSG* msg)
1723 {
1724 // check for our special keys here: if we don't do it and the parent frame
1725 // uses them as accelerators, they wouldn't work at all, so we disable
1726 // usual preprocessing for them
1727 if ( msg->message == WM_KEYDOWN )
1728 {
1729 const WPARAM vkey = msg->wParam;
1730 if ( HIWORD(msg->lParam) & KF_ALTDOWN )
1731 {
1732 // Alt-Backspace is accelerator for "Undo"
1733 if ( vkey == VK_BACK )
1734 return false;
1735 }
1736 else // no Alt
1737 {
1738 // we want to process some Ctrl-foo and Shift-bar but no key
1739 // combinations without either Ctrl or Shift nor with both of them
1740 // pressed
1741 const int ctrl = wxIsCtrlDown(),
1742 shift = wxIsShiftDown();
1743 switch ( ctrl + shift )
1744 {
1745 default:
1746 wxFAIL_MSG( _T("how many modifiers have we got?") );
1747 // fall through
1748
1749 case 0:
1750 if ( IsMultiLine() && vkey == VK_RETURN )
1751 return false;
1752 // fall through
1753 case 2:
1754 break;
1755
1756 case 1:
1757 // either Ctrl or Shift pressed
1758 if ( ctrl )
1759 {
1760 switch ( vkey )
1761 {
1762 case 'C':
1763 case 'V':
1764 case 'X':
1765 case VK_INSERT:
1766 case VK_DELETE:
1767 case VK_HOME:
1768 case VK_END:
1769 return false;
1770 }
1771 }
1772 else // Shift is pressed
1773 {
1774 if ( vkey == VK_INSERT || vkey == VK_DELETE )
1775 return false;
1776 }
1777 }
1778 }
1779 }
1780
1781 return wxControl::MSWShouldPreProcessMessage(msg);
1782 }
1783
1784 void wxTextCtrl::OnChar(wxKeyEvent& event)
1785 {
1786 switch ( event.GetKeyCode() )
1787 {
1788 case WXK_RETURN:
1789 {
1790 wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
1791 InitCommandEvent(event);
1792 event.SetString(GetValue());
1793 if ( HandleWindowEvent(event) )
1794 if ( !HasFlag(wxTE_MULTILINE) )
1795 return;
1796 //else: multiline controls need Enter for themselves
1797 }
1798 break;
1799
1800 case WXK_TAB:
1801 // ok, so this is getting absolutely ridiculous but I don't see
1802 // any other way to fix this bug: when a multiline text control is
1803 // inside a wxFrame, we need to generate the navigation event as
1804 // otherwise nothing happens at all, but when the same control is
1805 // created inside a dialog, IsDialogMessage() *does* switch focus
1806 // all by itself and so if we do it here as well, it is advanced
1807 // twice and goes to the next control... to prevent this from
1808 // happening we're doing this ugly check, the logic being that if
1809 // we don't have focus then it had been already changed to the next
1810 // control
1811 //
1812 // the right thing to do would, of course, be to understand what
1813 // the hell is IsDialogMessage() doing but this is beyond my feeble
1814 // forces at the moment unfortunately
1815 if ( !(m_windowStyle & wxTE_PROCESS_TAB))
1816 {
1817 if ( FindFocus() == this )
1818 {
1819 int flags = 0;
1820 if (!event.ShiftDown())
1821 flags |= wxNavigationKeyEvent::IsForward ;
1822 if (event.ControlDown())
1823 flags |= wxNavigationKeyEvent::WinChange ;
1824 if (Navigate(flags))
1825 return;
1826 }
1827 }
1828 else
1829 {
1830 // Insert tab since calling the default Windows handler
1831 // doesn't seem to do it
1832 WriteText(wxT("\t"));
1833 return;
1834 }
1835 break;
1836 }
1837
1838 // no, we didn't process it
1839 event.Skip();
1840 }
1841
1842 WXLRESULT wxTextCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
1843 {
1844 WXLRESULT lRc = wxTextCtrlBase::MSWWindowProc(nMsg, wParam, lParam);
1845
1846 switch ( nMsg )
1847 {
1848 case WM_GETDLGCODE:
1849 {
1850 // we always want the chars and the arrows: the arrows for
1851 // navigation and the chars because we want Ctrl-C to work even
1852 // in a read only control
1853 long lDlgCode = DLGC_WANTCHARS | DLGC_WANTARROWS;
1854
1855 if ( IsEditable() )
1856 {
1857 // we may have several different cases:
1858 // 1. normal: both TAB and ENTER are used for navigation
1859 // 2. ctrl wants TAB for itself: ENTER is used to pass to
1860 // the next control in the dialog
1861 // 3. ctrl wants ENTER for itself: TAB is used for dialog
1862 // navigation
1863 // 4. ctrl wants both TAB and ENTER: Ctrl-ENTER is used to
1864 // go to the next control (we need some way to do it)
1865
1866 // multiline controls should always get ENTER for themselves
1867 if ( HasFlag(wxTE_PROCESS_ENTER) || HasFlag(wxTE_MULTILINE) )
1868 lDlgCode |= DLGC_WANTMESSAGE;
1869
1870 if ( HasFlag(wxTE_PROCESS_TAB) )
1871 lDlgCode |= DLGC_WANTTAB;
1872
1873 lRc |= lDlgCode;
1874 }
1875 else // !editable
1876 {
1877 // NB: use "=", not "|=" as the base class version returns
1878 // the same flags is this state as usual (i.e.
1879 // including DLGC_WANTMESSAGE). This is strange (how
1880 // does it work in the native Win32 apps?) but for now
1881 // live with it.
1882 lRc = lDlgCode;
1883 }
1884 }
1885 break;
1886 }
1887
1888 return lRc;
1889 }
1890
1891 // ----------------------------------------------------------------------------
1892 // text control event processing
1893 // ----------------------------------------------------------------------------
1894
1895 bool wxTextCtrl::SendUpdateEvent()
1896 {
1897 switch ( m_updatesCount )
1898 {
1899 case 0:
1900 // remember that we've got an update
1901 m_updatesCount++;
1902 break;
1903
1904 case 1:
1905 // we had already sent one event since the last control modification
1906 return false;
1907
1908 default:
1909 wxFAIL_MSG( _T("unexpected wxTextCtrl::m_updatesCount value") );
1910 // fall through
1911
1912 case -1:
1913 // we hadn't updated the control ourselves, this event comes from
1914 // the user, don't need to ignore it nor update the count
1915 break;
1916
1917 case -2:
1918 // the control was updated programmatically and we do NOT want to
1919 // send events
1920 return false;
1921 }
1922
1923 return SendTextUpdatedEvent();
1924 }
1925
1926 bool wxTextCtrl::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
1927 {
1928 switch ( param )
1929 {
1930 case EN_CHANGE:
1931 SendUpdateEvent();
1932 break;
1933
1934 case EN_MAXTEXT:
1935 // the text size limit has been hit -- try to increase it
1936 if ( !AdjustSpaceLimit() )
1937 {
1938 wxCommandEvent event(wxEVT_COMMAND_TEXT_MAXLEN, m_windowId);
1939 InitCommandEvent(event);
1940 event.SetString(GetValue());
1941 ProcessCommand(event);
1942 }
1943 break;
1944
1945 // the other edit notification messages are not processed (or, in
1946 // the case of EN_{SET/KILL}FOCUS were already handled at WM_SET/
1947 // KILLFOCUS level)
1948 default:
1949 return false;
1950 }
1951
1952 // processed
1953 return true;
1954 }
1955
1956 WXHBRUSH wxTextCtrl::MSWControlColor(WXHDC hDC, WXHWND hWnd)
1957 {
1958 if ( !IsEnabled() && !HasFlag(wxTE_MULTILINE) )
1959 return MSWControlColorDisabled(hDC);
1960
1961 return wxTextCtrlBase::MSWControlColor(hDC, hWnd);
1962 }
1963
1964 bool wxTextCtrl::HasSpaceLimit(unsigned int *len) const
1965 {
1966 // HACK: we try to automatically extend the limit for the amount of text
1967 // to allow (interactively) entering more than 64Kb of text under
1968 // Win9x but we shouldn't reset the text limit which was previously
1969 // set explicitly with SetMaxLength()
1970 //
1971 // Unfortunately there is no EM_GETLIMITTEXTSETBYUSER and so we don't
1972 // know the limit we set (if any). We could solve this by storing the
1973 // limit we set in wxTextCtrl but to save space we prefer to simply
1974 // test here the actual limit value: we consider that SetMaxLength()
1975 // can only be called for small values while EN_MAXTEXT is only sent
1976 // for large values (in practice the default limit seems to be 30000
1977 // but make it smaller just to be on the safe side)
1978 *len = ::SendMessage(GetHwnd(), EM_GETLIMITTEXT, 0, 0);
1979 return *len < 10001;
1980
1981 }
1982
1983 bool wxTextCtrl::AdjustSpaceLimit()
1984 {
1985 unsigned int limit;
1986 if ( HasSpaceLimit(&limit) )
1987 return false;
1988
1989 unsigned int len = ::GetWindowTextLength(GetHwnd());
1990 if ( len >= limit )
1991 {
1992 // increment in 32Kb chunks
1993 SetMaxLength(len + 0x8000);
1994 }
1995
1996 // we changed the limit
1997 return true;
1998 }
1999
2000 bool wxTextCtrl::AcceptsFocusFromKeyboard() const
2001 {
2002 // we don't want focus if we can't be edited unless we're a multiline
2003 // control because then it might be still nice to get focus from keyboard
2004 // to be able to scroll it without mouse
2005 return (IsEditable() || IsMultiLine()) && wxControl::AcceptsFocus();
2006 }
2007
2008 wxSize wxTextCtrl::DoGetBestSize() const
2009 {
2010 int cx, cy;
2011 wxGetCharSize(GetHWND(), &cx, &cy, GetFont());
2012
2013 int wText = DEFAULT_ITEM_WIDTH;
2014
2015 int hText = cy;
2016 if ( m_windowStyle & wxTE_MULTILINE )
2017 {
2018 hText *= wxMax(wxMin(GetNumberOfLines(), 10), 2);
2019 }
2020 //else: for single line control everything is ok
2021
2022 // we have to add the adjustments for the control height only once, not
2023 // once per line, so do it after multiplication above
2024 hText += EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy) - cy;
2025
2026 return wxSize(wText, hText);
2027 }
2028
2029 // ----------------------------------------------------------------------------
2030 // standard handlers for standard edit menu events
2031 // ----------------------------------------------------------------------------
2032
2033 void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
2034 {
2035 Cut();
2036 }
2037
2038 void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
2039 {
2040 Copy();
2041 }
2042
2043 void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
2044 {
2045 Paste();
2046 }
2047
2048 void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
2049 {
2050 Undo();
2051 }
2052
2053 void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
2054 {
2055 Redo();
2056 }
2057
2058 void wxTextCtrl::OnDelete(wxCommandEvent& WXUNUSED(event))
2059 {
2060 long from, to;
2061 GetSelection(& from, & to);
2062 if (from != -1 && to != -1)
2063 Remove(from, to);
2064 }
2065
2066 void wxTextCtrl::OnSelectAll(wxCommandEvent& WXUNUSED(event))
2067 {
2068 SetSelection(-1, -1);
2069 }
2070
2071 void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
2072 {
2073 event.Enable( CanCut() );
2074 }
2075
2076 void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
2077 {
2078 event.Enable( CanCopy() );
2079 }
2080
2081 void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
2082 {
2083 event.Enable( CanPaste() );
2084 }
2085
2086 void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
2087 {
2088 event.Enable( CanUndo() );
2089 }
2090
2091 void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
2092 {
2093 event.Enable( CanRedo() );
2094 }
2095
2096 void wxTextCtrl::OnUpdateDelete(wxUpdateUIEvent& event)
2097 {
2098 long from, to;
2099 GetSelection(& from, & to);
2100 event.Enable(from != -1 && to != -1 && from != to && IsEditable()) ;
2101 }
2102
2103 void wxTextCtrl::OnUpdateSelectAll(wxUpdateUIEvent& event)
2104 {
2105 event.Enable(GetLastPosition() > 0);
2106 }
2107
2108 void wxTextCtrl::OnContextMenu(wxContextMenuEvent& event)
2109 {
2110 #if wxUSE_RICHEDIT
2111 if (IsRich())
2112 {
2113 if (!m_privateContextMenu)
2114 {
2115 m_privateContextMenu = new wxMenu;
2116 m_privateContextMenu->Append(wxID_UNDO, _("&Undo"));
2117 m_privateContextMenu->Append(wxID_REDO, _("&Redo"));
2118 m_privateContextMenu->AppendSeparator();
2119 m_privateContextMenu->Append(wxID_CUT, _("Cu&t"));
2120 m_privateContextMenu->Append(wxID_COPY, _("&Copy"));
2121 m_privateContextMenu->Append(wxID_PASTE, _("&Paste"));
2122 m_privateContextMenu->Append(wxID_CLEAR, _("&Delete"));
2123 m_privateContextMenu->AppendSeparator();
2124 m_privateContextMenu->Append(wxID_SELECTALL, _("Select &All"));
2125 }
2126 PopupMenu(m_privateContextMenu);
2127 return;
2128 }
2129 else
2130 #endif
2131 event.Skip();
2132 }
2133
2134 void wxTextCtrl::OnSetFocus(wxFocusEvent& event)
2135 {
2136 // be sure the caret remains invisible if the user had hidden it
2137 if ( !m_isNativeCaretShown )
2138 {
2139 ::HideCaret(GetHwnd());
2140 }
2141
2142 event.Skip();
2143 }
2144
2145 // ----------------------------------------------------------------------------
2146 // Default colors for MSW text control
2147 //
2148 // Set default background color to the native white instead of
2149 // the default wxSYS_COLOUR_BTNFACE (is triggered with wxNullColour).
2150 // ----------------------------------------------------------------------------
2151
2152 wxVisualAttributes wxTextCtrl::GetDefaultAttributes() const
2153 {
2154 wxVisualAttributes attrs;
2155 attrs.font = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
2156 attrs.colFg = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT);
2157 attrs.colBg = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW); //white
2158
2159 return attrs;
2160 }
2161
2162 // the rest of the file only deals with the rich edit controls
2163 #if wxUSE_RICHEDIT
2164
2165 // ----------------------------------------------------------------------------
2166 // EN_LINK processing
2167 // ----------------------------------------------------------------------------
2168
2169 bool wxTextCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
2170 {
2171 NMHDR *hdr = (NMHDR* )lParam;
2172 switch ( hdr->code )
2173 {
2174 case EN_MSGFILTER:
2175 {
2176 const MSGFILTER *msgf = (MSGFILTER *)lParam;
2177 UINT msg = msgf->msg;
2178
2179 // this is a bit crazy but richedit 1.0 sends us all mouse
2180 // events _except_ WM_LBUTTONUP (don't ask me why) so we have
2181 // generate the wxWin events for this message manually
2182 //
2183 // NB: in fact, this is still not totally correct as it does
2184 // send us WM_LBUTTONUP if the selection was cleared by the
2185 // last click -- so currently we get 2 events in this case,
2186 // but as I don't see any obvious way to check for this I
2187 // leave this code in place because it's still better than
2188 // not getting left up events at all
2189 if ( msg == WM_LBUTTONUP )
2190 {
2191 WXUINT flags = msgf->wParam;
2192 int x = GET_X_LPARAM(msgf->lParam),
2193 y = GET_Y_LPARAM(msgf->lParam);
2194
2195 HandleMouseEvent(msg, x, y, flags);
2196 }
2197 }
2198
2199 // return true to process the event (and false to ignore it)
2200 return true;
2201
2202 case EN_LINK:
2203 {
2204 const ENLINK *enlink = (ENLINK *)hdr;
2205
2206 switch ( enlink->msg )
2207 {
2208 case WM_SETCURSOR:
2209 // ok, so it is hardcoded - do we really nee to
2210 // customize it?
2211 {
2212 wxCursor cur(wxCURSOR_HAND);
2213 ::SetCursor(GetHcursorOf(cur));
2214 *result = TRUE;
2215 break;
2216 }
2217
2218 case WM_MOUSEMOVE:
2219 case WM_LBUTTONDOWN:
2220 case WM_LBUTTONUP:
2221 case WM_LBUTTONDBLCLK:
2222 case WM_RBUTTONDOWN:
2223 case WM_RBUTTONUP:
2224 case WM_RBUTTONDBLCLK:
2225 // send a mouse event
2226 {
2227 static const wxEventType eventsMouse[] =
2228 {
2229 wxEVT_MOTION,
2230 wxEVT_LEFT_DOWN,
2231 wxEVT_LEFT_UP,
2232 wxEVT_LEFT_DCLICK,
2233 wxEVT_RIGHT_DOWN,
2234 wxEVT_RIGHT_UP,
2235 wxEVT_RIGHT_DCLICK,
2236 };
2237
2238 // the event ids are consecutive
2239 wxMouseEvent
2240 evtMouse(eventsMouse[enlink->msg - WM_MOUSEMOVE]);
2241
2242 InitMouseEvent(evtMouse,
2243 GET_X_LPARAM(enlink->lParam),
2244 GET_Y_LPARAM(enlink->lParam),
2245 enlink->wParam);
2246
2247 wxTextUrlEvent event(m_windowId, evtMouse,
2248 enlink->chrg.cpMin,
2249 enlink->chrg.cpMax);
2250
2251 InitCommandEvent(event);
2252
2253 *result = ProcessCommand(event);
2254 }
2255 break;
2256 }
2257 }
2258 return true;
2259 }
2260
2261 // not processed, leave it to the base class
2262 return wxTextCtrlBase::MSWOnNotify(idCtrl, lParam, result);
2263 }
2264
2265 #if wxUSE_DRAG_AND_DROP
2266
2267 void wxTextCtrl::SetDropTarget(wxDropTarget *dropTarget)
2268 {
2269 if ( m_dropTarget == wxRICHTEXT_DEFAULT_DROPTARGET )
2270 {
2271 // get rid of the built-in drop target
2272 ::RevokeDragDrop(GetHwnd());
2273 m_dropTarget = NULL;
2274 }
2275
2276 wxTextCtrlBase::SetDropTarget(dropTarget);
2277 }
2278
2279 #endif // wxUSE_DRAG_AND_DROP
2280
2281 // ----------------------------------------------------------------------------
2282 // colour setting for the rich edit controls
2283 // ----------------------------------------------------------------------------
2284
2285 bool wxTextCtrl::SetBackgroundColour(const wxColour& colour)
2286 {
2287 if ( !wxTextCtrlBase::SetBackgroundColour(colour) )
2288 {
2289 // colour didn't really change
2290 return false;
2291 }
2292
2293 if ( IsRich() )
2294 {
2295 // rich edit doesn't use WM_CTLCOLOR, hence we need to send
2296 // EM_SETBKGNDCOLOR additionally
2297 ::SendMessage(GetHwnd(), EM_SETBKGNDCOLOR, 0, wxColourToRGB(colour));
2298 }
2299
2300 return true;
2301 }
2302
2303 bool wxTextCtrl::SetForegroundColour(const wxColour& colour)
2304 {
2305 if ( !wxTextCtrlBase::SetForegroundColour(colour) )
2306 {
2307 // colour didn't really change
2308 return false;
2309 }
2310
2311 if ( IsRich() )
2312 {
2313 // change the colour of everything
2314 CHARFORMAT cf;
2315 wxZeroMemory(cf);
2316 cf.cbSize = sizeof(cf);
2317 cf.dwMask = CFM_COLOR;
2318 cf.crTextColor = wxColourToRGB(colour);
2319 ::SendMessage(GetHwnd(), EM_SETCHARFORMAT, SCF_ALL, (LPARAM)&cf);
2320 }
2321
2322 return true;
2323 }
2324
2325 // ----------------------------------------------------------------------------
2326 // styling support for rich edit controls
2327 // ----------------------------------------------------------------------------
2328
2329 bool wxTextCtrl::SetStyle(long start, long end, const wxTextAttr& style)
2330 {
2331 if ( !IsRich() )
2332 {
2333 // can't do it with normal text control
2334 return false;
2335 }
2336
2337 // the richedit 1.0 doesn't handle setting background colour, so don't
2338 // even try to do anything if it's the only thing we want to change
2339 if ( m_verRichEdit == 1 && !style.HasFont() && !style.HasTextColour() &&
2340 !style.HasLeftIndent() && !style.HasRightIndent() && !style.HasAlignment() &&
2341 !style.HasTabs() )
2342 {
2343 // nothing to do: return true if there was really nothing to do and
2344 // false if we failed to set bg colour
2345 return !style.HasBackgroundColour();
2346 }
2347
2348 // order the range if needed
2349 if ( start > end )
2350 {
2351 long tmp = start;
2352 start = end;
2353 end = tmp;
2354 }
2355
2356 // we can only change the format of the selection, so select the range we
2357 // want and restore the old selection later
2358 long startOld, endOld;
2359 GetSelection(&startOld, &endOld);
2360
2361 // but do we really have to change the selection?
2362 bool changeSel = start != startOld || end != endOld;
2363
2364 if ( changeSel )
2365 {
2366 DoSetSelection(start, end, SetSel_NoScroll);
2367 }
2368
2369 // initialize CHARFORMAT struct
2370 #if wxUSE_RICHEDIT2
2371 CHARFORMAT2 cf;
2372 #else
2373 CHARFORMAT cf;
2374 #endif
2375
2376 wxZeroMemory(cf);
2377
2378 // we can't use CHARFORMAT2 with RichEdit 1.0, so pretend it is a simple
2379 // CHARFORMAT in that case
2380 #if wxUSE_RICHEDIT2
2381 if ( m_verRichEdit == 1 )
2382 {
2383 // this is the only thing the control is going to grok
2384 cf.cbSize = sizeof(CHARFORMAT);
2385 }
2386 else
2387 #endif
2388 {
2389 // CHARFORMAT or CHARFORMAT2
2390 cf.cbSize = sizeof(cf);
2391 }
2392
2393 if ( style.HasFont() )
2394 {
2395 // VZ: CFM_CHARSET doesn't seem to do anything at all in RichEdit 2.0
2396 // but using it doesn't seem to hurt neither so leaving it for now
2397
2398 cf.dwMask |= CFM_FACE | CFM_SIZE | CFM_CHARSET |
2399 CFM_ITALIC | CFM_BOLD | CFM_UNDERLINE;
2400
2401 // fill in data from LOGFONT but recalculate lfHeight because we need
2402 // the real height in twips and not the negative number which
2403 // wxFillLogFont() returns (this is correct in general and works with
2404 // the Windows font mapper, but not here)
2405
2406 wxFont font(style.GetFont());
2407
2408 LOGFONT lf;
2409 wxFillLogFont(&lf, &font);
2410 cf.yHeight = 20*font.GetPointSize(); // 1 pt = 20 twips
2411 cf.bCharSet = lf.lfCharSet;
2412 cf.bPitchAndFamily = lf.lfPitchAndFamily;
2413 wxStrncpy( cf.szFaceName, lf.lfFaceName, WXSIZEOF(cf.szFaceName) );
2414
2415 // also deal with underline/italic/bold attributes: note that we must
2416 // always set CFM_ITALIC &c bits in dwMask, even if we don't set the
2417 // style to allow clearing it
2418 if ( lf.lfItalic )
2419 {
2420 cf.dwEffects |= CFE_ITALIC;
2421 }
2422
2423 if ( lf.lfWeight == FW_BOLD )
2424 {
2425 cf.dwEffects |= CFE_BOLD;
2426 }
2427
2428 if ( lf.lfUnderline )
2429 {
2430 cf.dwEffects |= CFE_UNDERLINE;
2431 }
2432
2433 // strikeout fonts are not supported by wxWidgets
2434 }
2435
2436 if ( style.HasTextColour() )
2437 {
2438 cf.dwMask |= CFM_COLOR;
2439 cf.crTextColor = wxColourToRGB(style.GetTextColour());
2440 }
2441
2442 #if wxUSE_RICHEDIT2
2443 if ( m_verRichEdit != 1 && style.HasBackgroundColour() )
2444 {
2445 cf.dwMask |= CFM_BACKCOLOR;
2446 cf.crBackColor = wxColourToRGB(style.GetBackgroundColour());
2447 }
2448 #endif // wxUSE_RICHEDIT2
2449
2450 // do format the selection
2451 bool ok = ::SendMessage(GetHwnd(), EM_SETCHARFORMAT,
2452 SCF_SELECTION, (LPARAM)&cf) != 0;
2453 if ( !ok )
2454 {
2455 wxLogDebug(_T("SendMessage(EM_SETCHARFORMAT, SCF_SELECTION) failed"));
2456 }
2457
2458 // now do the paragraph formatting
2459 PARAFORMAT2 pf;
2460 wxZeroMemory(pf);
2461 // we can't use PARAFORMAT2 with RichEdit 1.0, so pretend it is a simple
2462 // PARAFORMAT in that case
2463 #if wxUSE_RICHEDIT2
2464 if ( m_verRichEdit == 1 )
2465 {
2466 // this is the only thing the control is going to grok
2467 pf.cbSize = sizeof(PARAFORMAT);
2468 }
2469 else
2470 #endif
2471 {
2472 // PARAFORMAT or PARAFORMAT2
2473 pf.cbSize = sizeof(pf);
2474 }
2475
2476 if (style.HasAlignment())
2477 {
2478 pf.dwMask |= PFM_ALIGNMENT;
2479 if (style.GetAlignment() == wxTEXT_ALIGNMENT_RIGHT)
2480 pf.wAlignment = PFA_RIGHT;
2481 else if (style.GetAlignment() == wxTEXT_ALIGNMENT_CENTRE)
2482 pf.wAlignment = PFA_CENTER;
2483 else if (style.GetAlignment() == wxTEXT_ALIGNMENT_JUSTIFIED)
2484 pf.wAlignment = PFA_JUSTIFY;
2485 else
2486 pf.wAlignment = PFA_LEFT;
2487 }
2488
2489 if (style.HasLeftIndent())
2490 {
2491 pf.dwMask |= PFM_STARTINDENT | PFM_OFFSET;
2492
2493 // Convert from 1/10 mm to TWIPS
2494 pf.dxStartIndent = (int) (((double) style.GetLeftIndent()) * mm2twips / 10.0) ;
2495 pf.dxOffset = (int) (((double) style.GetLeftSubIndent()) * mm2twips / 10.0) ;
2496 }
2497
2498 if (style.HasRightIndent())
2499 {
2500 pf.dwMask |= PFM_RIGHTINDENT;
2501
2502 // Convert from 1/10 mm to TWIPS
2503 pf.dxRightIndent = (int) (((double) style.GetRightIndent()) * mm2twips / 10.0) ;
2504 }
2505
2506 if (style.HasTabs())
2507 {
2508 pf.dwMask |= PFM_TABSTOPS;
2509
2510 const wxArrayInt& tabs = style.GetTabs();
2511
2512 pf.cTabCount = (SHORT)wxMin(tabs.GetCount(), MAX_TAB_STOPS);
2513 size_t i;
2514 for (i = 0; i < (size_t) pf.cTabCount; i++)
2515 {
2516 // Convert from 1/10 mm to TWIPS
2517 pf.rgxTabs[i] = (int) (((double) tabs[i]) * mm2twips / 10.0) ;
2518 }
2519 }
2520
2521 #if wxUSE_RICHEDIT2
2522 if ( m_verRichEdit > 1 )
2523 {
2524 if ( wxTheApp->GetLayoutDirection() == wxLayout_RightToLeft )
2525 {
2526 // Use RTL paragraphs in RTL mode to get proper layout
2527 pf.dwMask |= PFM_RTLPARA;
2528 pf.wEffects |= PFE_RTLPARA;
2529 }
2530 }
2531 #endif // wxUSE_RICHEDIT2
2532
2533 if ( pf.dwMask )
2534 {
2535 // do format the selection
2536 bool ok = ::SendMessage(GetHwnd(), EM_SETPARAFORMAT,
2537 0, (LPARAM) &pf) != 0;
2538 if ( !ok )
2539 {
2540 wxLogDebug(_T("SendMessage(EM_SETPARAFORMAT, 0) failed"));
2541 }
2542 }
2543
2544 if ( changeSel )
2545 {
2546 // restore the original selection
2547 DoSetSelection(startOld, endOld, SetSel_NoScroll);
2548 }
2549
2550 return ok;
2551 }
2552
2553 bool wxTextCtrl::SetDefaultStyle(const wxTextAttr& style)
2554 {
2555 if ( !wxTextCtrlBase::SetDefaultStyle(style) )
2556 return false;
2557
2558 if ( IsEditable() )
2559 {
2560 // we have to do this or the style wouldn't apply for the text typed by
2561 // the user
2562 wxTextPos posLast = GetLastPosition();
2563 SetStyle(posLast, posLast, m_defaultStyle);
2564 }
2565
2566 return true;
2567 }
2568
2569 bool wxTextCtrl::GetStyle(long position, wxTextAttr& style)
2570 {
2571 if ( !IsRich() )
2572 {
2573 // can't do it with normal text control
2574 return false;
2575 }
2576
2577 // initialize CHARFORMAT struct
2578 #if wxUSE_RICHEDIT2
2579 CHARFORMAT2 cf;
2580 #else
2581 CHARFORMAT cf;
2582 #endif
2583
2584 wxZeroMemory(cf);
2585
2586 // we can't use CHARFORMAT2 with RichEdit 1.0, so pretend it is a simple
2587 // CHARFORMAT in that case
2588 #if wxUSE_RICHEDIT2
2589 if ( m_verRichEdit == 1 )
2590 {
2591 // this is the only thing the control is going to grok
2592 cf.cbSize = sizeof(CHARFORMAT);
2593 }
2594 else
2595 #endif
2596 {
2597 // CHARFORMAT or CHARFORMAT2
2598 cf.cbSize = sizeof(cf);
2599 }
2600 // we can only change the format of the selection, so select the range we
2601 // want and restore the old selection later
2602 long startOld, endOld;
2603 GetSelection(&startOld, &endOld);
2604
2605 // but do we really have to change the selection?
2606 bool changeSel = position != startOld || position != endOld;
2607
2608 if ( changeSel )
2609 {
2610 DoSetSelection(position, position + 1, SetSel_NoScroll);
2611 }
2612
2613 // get the selection formatting
2614 (void) ::SendMessage(GetHwnd(), EM_GETCHARFORMAT,
2615 SCF_SELECTION, (LPARAM)&cf) ;
2616
2617
2618 LOGFONT lf;
2619 lf.lfHeight = cf.yHeight;
2620 lf.lfWidth = 0;
2621 lf.lfCharSet = ANSI_CHARSET; // FIXME: how to get correct charset?
2622 lf.lfClipPrecision = 0;
2623 lf.lfEscapement = 0;
2624 wxStrcpy(lf.lfFaceName, cf.szFaceName);
2625
2626 //NOTE: we _MUST_ set each of these values to _something_ since we
2627 //do not call wxZeroMemory on the LOGFONT lf
2628 if (cf.dwEffects & CFE_ITALIC)
2629 lf.lfItalic = TRUE;
2630 else
2631 lf.lfItalic = FALSE;
2632
2633 lf.lfOrientation = 0;
2634 lf.lfPitchAndFamily = cf.bPitchAndFamily;
2635 lf.lfQuality = 0;
2636
2637 if (cf.dwEffects & CFE_STRIKEOUT)
2638 lf.lfStrikeOut = TRUE;
2639 else
2640 lf.lfStrikeOut = FALSE;
2641
2642 if (cf.dwEffects & CFE_UNDERLINE)
2643 lf.lfUnderline = TRUE;
2644 else
2645 lf.lfUnderline = FALSE;
2646
2647 if (cf.dwEffects & CFE_BOLD)
2648 lf.lfWeight = FW_BOLD;
2649 else
2650 lf.lfWeight = FW_NORMAL;
2651
2652 wxFont font = wxCreateFontFromLogFont(& lf);
2653 if (font.Ok())
2654 {
2655 style.SetFont(font);
2656 }
2657 style.SetTextColour(wxColour(cf.crTextColor));
2658
2659 #if wxUSE_RICHEDIT2
2660 if ( m_verRichEdit != 1 )
2661 {
2662 // cf.dwMask |= CFM_BACKCOLOR;
2663 style.SetBackgroundColour(wxColour(cf.crBackColor));
2664 }
2665 #endif // wxUSE_RICHEDIT2
2666
2667 // now get the paragraph formatting
2668 PARAFORMAT2 pf;
2669 wxZeroMemory(pf);
2670 // we can't use PARAFORMAT2 with RichEdit 1.0, so pretend it is a simple
2671 // PARAFORMAT in that case
2672 #if wxUSE_RICHEDIT2
2673 if ( m_verRichEdit == 1 )
2674 {
2675 // this is the only thing the control is going to grok
2676 pf.cbSize = sizeof(PARAFORMAT);
2677 }
2678 else
2679 #endif
2680 {
2681 // PARAFORMAT or PARAFORMAT2
2682 pf.cbSize = sizeof(pf);
2683 }
2684
2685 // do format the selection
2686 (void) ::SendMessage(GetHwnd(), EM_GETPARAFORMAT, 0, (LPARAM) &pf) ;
2687
2688 style.SetLeftIndent( (int) ((double) pf.dxStartIndent * twips2mm * 10.0), (int) ((double) pf.dxOffset * twips2mm * 10.0) );
2689 style.SetRightIndent( (int) ((double) pf.dxRightIndent * twips2mm * 10.0) );
2690
2691 if (pf.wAlignment == PFA_CENTER)
2692 style.SetAlignment(wxTEXT_ALIGNMENT_CENTRE);
2693 else if (pf.wAlignment == PFA_RIGHT)
2694 style.SetAlignment(wxTEXT_ALIGNMENT_RIGHT);
2695 else if (pf.wAlignment == PFA_JUSTIFY)
2696 style.SetAlignment(wxTEXT_ALIGNMENT_JUSTIFIED);
2697 else
2698 style.SetAlignment(wxTEXT_ALIGNMENT_LEFT);
2699
2700 wxArrayInt tabStops;
2701 size_t i;
2702 for (i = 0; i < (size_t) pf.cTabCount; i++)
2703 {
2704 tabStops.Add( (int) ((double) (pf.rgxTabs[i] & 0xFFFF) * twips2mm * 10.0) );
2705 }
2706
2707 if ( changeSel )
2708 {
2709 // restore the original selection
2710 DoSetSelection(startOld, endOld, SetSel_NoScroll);
2711 }
2712
2713 return true;
2714 }
2715
2716 // ----------------------------------------------------------------------------
2717 // wxRichEditModule
2718 // ----------------------------------------------------------------------------
2719
2720 static const HINSTANCE INVALID_HINSTANCE = (HINSTANCE)-1;
2721
2722 bool wxRichEditModule::OnInit()
2723 {
2724 // don't do anything - we will load it when needed
2725 return true;
2726 }
2727
2728 void wxRichEditModule::OnExit()
2729 {
2730 for ( size_t i = 0; i < WXSIZEOF(ms_hRichEdit); i++ )
2731 {
2732 if ( ms_hRichEdit[i] && ms_hRichEdit[i] != INVALID_HINSTANCE )
2733 {
2734 ::FreeLibrary(ms_hRichEdit[i]);
2735 ms_hRichEdit[i] = NULL;
2736 }
2737 }
2738 #if wxUSE_INKEDIT
2739 if (ms_inkEditLib.IsLoaded())
2740 ms_inkEditLib.Unload();
2741 #endif
2742 }
2743
2744 /* static */
2745 bool wxRichEditModule::Load(Version version)
2746 {
2747 if ( ms_hRichEdit[version] == INVALID_HINSTANCE )
2748 {
2749 // we had already tried to load it and failed
2750 return false;
2751 }
2752
2753 if ( ms_hRichEdit[version] )
2754 {
2755 // we've already got this one
2756 return true;
2757 }
2758
2759 static const wxChar *dllnames[] =
2760 {
2761 _T("riched32"),
2762 _T("riched20"),
2763 _T("msftedit"),
2764 };
2765
2766 wxCOMPILE_TIME_ASSERT( WXSIZEOF(dllnames) == Version_Max,
2767 RichEditDllNamesVersionsMismatch );
2768
2769 ms_hRichEdit[version] = ::LoadLibrary(dllnames[version]);
2770
2771 if ( !ms_hRichEdit[version] )
2772 {
2773 ms_hRichEdit[version] = INVALID_HINSTANCE;
2774
2775 return false;
2776 }
2777
2778 return true;
2779 }
2780
2781 #if wxUSE_INKEDIT
2782 // load the InkEdit library
2783 bool wxRichEditModule::LoadInkEdit()
2784 {
2785 static wxDynamicLibrary ms_inkEditLib;
2786 static bool ms_inkEditLibLoadAttemped;
2787 if (ms_inkEditLibLoadAttemped)
2788 ms_inkEditLib.IsLoaded();
2789
2790 ms_inkEditLibLoadAttemped = true;
2791
2792 wxLogNull logNull;
2793 return ms_inkEditLib.Load(wxT("inked"));
2794 }
2795 #endif // wxUSE_INKEDIT
2796
2797
2798 #endif // wxUSE_RICHEDIT
2799
2800 #endif // wxUSE_TEXTCTRL && !(__SMARTPHONE__ && __WXWINCE__)
wxWidgets (Impactor)