fixed wxTextCtrl to not process clipboard events twice if there's a custom wxEVT_COMM...
[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 ( encoding == wxFONTENCODING_SYSTEM )
788 {
789 encoding = wxLocale::GetSystemEncoding();
790 }
791
792 if ( encoding == wxFONTENCODING_SYSTEM )
793 {
794 encoding = wxFONTENCODING_ISO8859_1;
795 }
796
797 str = StreamOut(encoding);
798
799 if ( !str.empty() )
800 {
801 // we have to manually extract the required part, luckily
802 // this is easy in this case as EOL characters in str are
803 // just LFs because we remove CRs in wxRichEditStreamOut
804 str = str.Mid(from, to - from);
805 }
806 }
807
808 // StreamOut() wasn't used or failed, try to do it in normal way
809 if ( str.empty() )
810 #endif // !wxUSE_UNICODE
811 {
812 // alloc one extra WORD as needed by the control
813 wxStringBuffer tmp(str, ++len);
814 wxChar *p = tmp;
815
816 TEXTRANGE textRange;
817 textRange.chrg.cpMin = from;
818 textRange.chrg.cpMax = to;
819 textRange.lpstrText = p;
820
821 (void)::SendMessage(GetHwnd(), EM_GETTEXTRANGE,
822 0, (LPARAM)&textRange);
823
824 if ( m_verRichEdit > 1 )
825 {
826 // RichEdit 2.0 uses just CR ('\r') for the
827 // newlines which is neither Unix nor Windows
828 // style - convert it to something reasonable
829 for ( ; *p; p++ )
830 {
831 if ( *p == _T('\r') )
832 *p = _T('\n');
833 }
834 }
835 }
836
837 if ( m_verRichEdit == 1 )
838 {
839 // convert to the canonical form - see comment below
840 str = wxTextFile::Translate(str, wxTextFileType_Unix);
841 }
842 }
843 //else: no text at all, leave the string empty
844 }
845 else
846 #endif // wxUSE_RICHEDIT
847 {
848 // retrieve all text
849 str = wxGetWindowText(GetHWND());
850
851 // need only a range?
852 if ( from < to )
853 {
854 str = str.Mid(from, to - from);
855 }
856
857 // WM_GETTEXT uses standard DOS CR+LF (\r\n) convention - convert to the
858 // canonical one (same one as above) for consistency with the other kinds
859 // of controls and, more importantly, with the other ports
860 str = wxTextFile::Translate(str, wxTextFileType_Unix);
861 }
862
863 return str;
864 }
865
866 void wxTextCtrl::DoSetValue(const wxString& value, int flags)
867 {
868 // if the text is long enough, it's faster to just set it instead of first
869 // comparing it with the old one (chances are that it will be different
870 // anyhow, this comparison is there to avoid flicker for small single-line
871 // edit controls mostly)
872 if ( (value.length() > 0x400) || (value != GetValue()) )
873 {
874 DoWriteText(value, flags /* doesn't include SelectionOnly here */);
875
876 // mark the control as being not dirty - we changed its text, not the
877 // user
878 DiscardEdits();
879
880 // for compatibility, don't move the cursor when doing SetValue()
881 SetInsertionPoint(0);
882 }
883 else // same text
884 {
885 // still reset the modified flag even if the value didn't really change
886 // because now it comes from the program and not the user (and do it
887 // before generating the event so that the event handler could get the
888 // expected value from IsModified())
889 DiscardEdits();
890
891 // still send an event for consistency
892 if (flags & SetValue_SendEvent)
893 SendUpdateEvent();
894 }
895 }
896
897 #if wxUSE_RICHEDIT && (!wxUSE_UNICODE || wxUSE_UNICODE_MSLU)
898
899 // TODO: using memcpy() would improve performance a lot for big amounts of text
900
901 DWORD CALLBACK
902 wxRichEditStreamIn(DWORD dwCookie, BYTE *buf, LONG cb, LONG *pcb)
903 {
904 *pcb = 0;
905
906 const wchar_t ** const ppws = (const wchar_t **)dwCookie;
907
908 wchar_t *wbuf = (wchar_t *)buf;
909 const wchar_t *wpc = *ppws;
910 while ( cb && *wpc )
911 {
912 *wbuf++ = *wpc++;
913
914 cb -= sizeof(wchar_t);
915 (*pcb) += sizeof(wchar_t);
916 }
917
918 *ppws = wpc;
919
920 return 0;
921 }
922
923 // helper struct used to pass parameters from wxTextCtrl to wxRichEditStreamOut
924 struct wxStreamOutData
925 {
926 wchar_t *wpc;
927 size_t len;
928 };
929
930 DWORD CALLBACK
931 wxRichEditStreamOut(DWORD_PTR dwCookie, BYTE *buf, LONG cb, LONG *pcb)
932 {
933 *pcb = 0;
934
935 wxStreamOutData *data = (wxStreamOutData *)dwCookie;
936
937 const wchar_t *wbuf = (const wchar_t *)buf;
938 wchar_t *wpc = data->wpc;
939 while ( cb )
940 {
941 wchar_t wch = *wbuf++;
942
943 // turn "\r\n" into "\n" on the fly
944 if ( wch != L'\r' )
945 *wpc++ = wch;
946 else
947 data->len--;
948
949 cb -= sizeof(wchar_t);
950 (*pcb) += sizeof(wchar_t);
951 }
952
953 data->wpc = wpc;
954
955 return 0;
956 }
957
958
959 #if wxUSE_UNICODE_MSLU
960 #define UNUSED_IF_MSLU(param)
961 #else
962 #define UNUSED_IF_MSLU(param) param
963 #endif
964
965 bool
966 wxTextCtrl::StreamIn(const wxString& value,
967 wxFontEncoding UNUSED_IF_MSLU(encoding),
968 bool selectionOnly)
969 {
970 #if wxUSE_UNICODE_MSLU
971 const wchar_t *wpc = value.c_str();
972 #else // !wxUSE_UNICODE_MSLU
973 wxCSConv conv(encoding);
974
975 const size_t len = conv.MB2WC(NULL, value.mb_str(), value.length());
976
977 if (len == wxCONV_FAILED)
978 return false;
979
980 #if wxUSE_WCHAR_T
981 wxWCharBuffer wchBuf(len);
982 wchar_t *wpc = wchBuf.data();
983 #else
984 wchar_t *wchBuf = (wchar_t *)malloc((len + 1)*sizeof(wchar_t));
985 wchar_t *wpc = wchBuf;
986 #endif
987
988 conv.MB2WC(wpc, value.mb_str(), value.length());
989 #endif // wxUSE_UNICODE_MSLU
990
991 // finally, stream it in the control
992 EDITSTREAM eds;
993 wxZeroMemory(eds);
994 eds.dwCookie = (DWORD)&wpc;
995 // the cast below is needed for broken (very) old mingw32 headers
996 eds.pfnCallback = (EDITSTREAMCALLBACK)wxRichEditStreamIn;
997
998 // same problem as in DoWriteText(): we can get multiple events here
999 UpdatesCountFilter ucf(m_updatesCount);
1000
1001 ::SendMessage(GetHwnd(), EM_STREAMIN,
1002 SF_TEXT |
1003 SF_UNICODE |
1004 (selectionOnly ? SFF_SELECTION : 0),
1005 (LPARAM)&eds);
1006
1007 // It's okay for EN_UPDATE to not be sent if the selection is empty and
1008 // the text is empty, otherwise warn the programmer about it.
1009 wxASSERT_MSG( ucf.GotUpdate() || ( !HasSelection() && value.empty() ),
1010 _T("EM_STREAMIN didn't send EN_UPDATE?") );
1011
1012 if ( eds.dwError )
1013 {
1014 wxLogLastError(_T("EM_STREAMIN"));
1015 }
1016
1017 #if !wxUSE_WCHAR_T
1018 free(wchBuf);
1019 #endif // !wxUSE_WCHAR_T
1020
1021 return true;
1022 }
1023
1024 #if !wxUSE_UNICODE_MSLU
1025
1026 wxString
1027 wxTextCtrl::StreamOut(wxFontEncoding encoding, bool selectionOnly) const
1028 {
1029 wxString out;
1030
1031 const int len = GetWindowTextLength(GetHwnd());
1032
1033 #if wxUSE_WCHAR_T
1034 wxWCharBuffer wchBuf(len);
1035 wchar_t *wpc = wchBuf.data();
1036 #else
1037 wchar_t *wchBuf = (wchar_t *)malloc((len + 1)*sizeof(wchar_t));
1038 wchar_t *wpc = wchBuf;
1039 #endif
1040
1041 wxStreamOutData data;
1042 data.wpc = wpc;
1043 data.len = len;
1044
1045 EDITSTREAM eds;
1046 wxZeroMemory(eds);
1047 eds.dwCookie = (DWORD)&data;
1048 eds.pfnCallback = wxRichEditStreamOut;
1049
1050 ::SendMessage
1051 (
1052 GetHwnd(),
1053 EM_STREAMOUT,
1054 SF_TEXT | SF_UNICODE | (selectionOnly ? SFF_SELECTION : 0),
1055 (LPARAM)&eds
1056 );
1057
1058 if ( eds.dwError )
1059 {
1060 wxLogLastError(_T("EM_STREAMOUT"));
1061 }
1062 else // streamed out ok
1063 {
1064 // NUL-terminate the string because its length could have been
1065 // decreased by wxRichEditStreamOut
1066 *(wchBuf.data() + data.len) = L'\0';
1067
1068 // now convert to the given encoding (this is a possibly lossful
1069 // conversion but what else can we do)
1070 wxCSConv conv(encoding);
1071 size_t lenNeeded = conv.WC2MB(NULL, wchBuf, 0);
1072
1073 if ( lenNeeded != wxCONV_FAILED && lenNeeded++ )
1074 {
1075 conv.WC2MB(wxStringBuffer(out, lenNeeded), wchBuf, lenNeeded);
1076 }
1077 }
1078
1079 #if !wxUSE_WCHAR_T
1080 free(wchBuf);
1081 #endif // !wxUSE_WCHAR_T
1082
1083 return out;
1084 }
1085
1086 #endif // !wxUSE_UNICODE_MSLU
1087
1088 #endif // wxUSE_RICHEDIT
1089
1090 void wxTextCtrl::WriteText(const wxString& value)
1091 {
1092 DoWriteText(value);
1093 }
1094
1095 void wxTextCtrl::DoWriteText(const wxString& value, int flags)
1096 {
1097 bool selectionOnly = (flags & SetValue_SelectionOnly) != 0;
1098 wxString valueDos;
1099 if ( m_windowStyle & wxTE_MULTILINE )
1100 valueDos = wxTextFile::Translate(value, wxTextFileType_Dos);
1101 else
1102 valueDos = value;
1103
1104 #if wxUSE_RICHEDIT
1105 // there are several complications with the rich edit controls here
1106 bool done = false;
1107 if ( IsRich() )
1108 {
1109 // first, ensure that the new text will be in the default style
1110 if ( !m_defaultStyle.IsDefault() )
1111 {
1112 long start, end;
1113 GetSelection(&start, &end);
1114 SetStyle(start, end, m_defaultStyle);
1115 }
1116
1117 #if wxUSE_UNICODE_MSLU
1118 // RichEdit doesn't have Unicode version of EM_REPLACESEL on Win9x,
1119 // but EM_STREAMIN works
1120 if ( wxUsingUnicowsDll() && GetRichVersion() > 1 )
1121 {
1122 done = StreamIn(valueDos, wxFONTENCODING_SYSTEM, selectionOnly);
1123 }
1124 #endif // wxUSE_UNICODE_MSLU
1125
1126 #if !wxUSE_UNICODE
1127 // next check if the text we're inserting must be shown in a non
1128 // default charset -- this only works for RichEdit > 1.0
1129 if ( GetRichVersion() > 1 )
1130 {
1131 wxFont font = m_defaultStyle.GetFont();
1132 if ( !font.Ok() )
1133 font = GetFont();
1134
1135 if ( font.Ok() )
1136 {
1137 wxFontEncoding encoding = font.GetEncoding();
1138 if ( encoding != wxFONTENCODING_SYSTEM )
1139 {
1140 // we have to use EM_STREAMIN to force richedit control 2.0+
1141 // to show any text in the non default charset -- otherwise
1142 // it thinks it knows better than we do and always shows it
1143 // in the default one
1144 done = StreamIn(valueDos, encoding, selectionOnly);
1145 }
1146 }
1147 }
1148 #endif // !wxUSE_UNICODE
1149 }
1150
1151 if ( !done )
1152 #endif // wxUSE_RICHEDIT
1153 {
1154 // in some cases we get 2 EN_CHANGE notifications after the SendMessage
1155 // call (this happens for plain EDITs with EM_REPLACESEL and under some
1156 // -- undetermined -- conditions with rich edit) and sometimes we don't
1157 // get any events at all (plain EDIT with WM_SETTEXT), so ensure that
1158 // we generate exactly one of them by ignoring all but the first one in
1159 // SendUpdateEvent() and generating one ourselves if we hadn't got any
1160 // notifications from Windows
1161 if ( !(flags & SetValue_SendEvent) )
1162 m_updatesCount = -2; // suppress any update event
1163
1164 UpdatesCountFilter ucf(m_updatesCount);
1165
1166 ::SendMessage(GetHwnd(), selectionOnly ? EM_REPLACESEL : WM_SETTEXT,
1167 // EM_REPLACESEL takes 1 to indicate the operation should be redoable
1168 selectionOnly ? 1 : 0, (LPARAM)valueDos.wx_str());
1169
1170 if ( !ucf.GotUpdate() && (flags & SetValue_SendEvent) )
1171 {
1172 SendUpdateEvent();
1173 }
1174 }
1175 }
1176
1177 void wxTextCtrl::AppendText(const wxString& text)
1178 {
1179 wxTextEntry::AppendText(text);
1180
1181 #if wxUSE_RICHEDIT
1182 // don't do this if we're frozen, saves some time
1183 if ( !IsFrozen() && IsMultiLine() && GetRichVersion() > 1 )
1184 {
1185 // setting the caret to the end and showing it simply doesn't work for
1186 // RichEdit 2.0 -- force it to still do what we want
1187 ::SendMessage(GetHwnd(), EM_LINESCROLL, 0, GetNumberOfLines());
1188 }
1189 #endif // wxUSE_RICHEDIT
1190 }
1191
1192 void wxTextCtrl::Clear()
1193 {
1194 ::SetWindowText(GetHwnd(), wxEmptyString);
1195
1196 if ( IsMultiLine() && !IsRich() )
1197 {
1198 // rich edit controls send EN_UPDATE from WM_SETTEXT handler themselves
1199 // but the normal ones don't -- make Clear() behaviour consistent by
1200 // always sending this event
1201 SendUpdateEvent();
1202 }
1203 }
1204
1205 #ifdef __WIN32__
1206
1207 bool wxTextCtrl::EmulateKeyPress(const wxKeyEvent& event)
1208 {
1209 SetFocus();
1210
1211 size_t lenOld = GetValue().length();
1212
1213 wxUint32 code = event.GetRawKeyCode();
1214 ::keybd_event((BYTE)code, 0, 0 /* key press */, 0);
1215 ::keybd_event((BYTE)code, 0, KEYEVENTF_KEYUP, 0);
1216
1217 // assume that any alphanumeric key changes the total number of characters
1218 // in the control - this should work in 99% of cases
1219 return GetValue().length() != lenOld;
1220 }
1221
1222 #endif // __WIN32__
1223
1224 // ----------------------------------------------------------------------------
1225 // Accessors
1226 // ----------------------------------------------------------------------------
1227
1228 void wxTextCtrl::SetInsertionPointEnd()
1229 {
1230 // we must not do anything if the caret is already there because calling
1231 // SetInsertionPoint() thaws the controls if Freeze() had been called even
1232 // if it doesn't actually move the caret anywhere and so the simple fact of
1233 // doing it results in horrible flicker when appending big amounts of text
1234 // to the control in a few chunks (see DoAddText() test in the text sample)
1235 const wxTextPos lastPosition = GetLastPosition();
1236 if ( GetInsertionPoint() == lastPosition )
1237 {
1238 return;
1239 }
1240
1241 SetInsertionPoint(lastPosition);
1242 }
1243
1244 long wxTextCtrl::GetInsertionPoint() const
1245 {
1246 #if wxUSE_RICHEDIT
1247 if ( IsRich() )
1248 {
1249 CHARRANGE range;
1250 range.cpMin = 0;
1251 range.cpMax = 0;
1252 ::SendMessage(GetHwnd(), EM_EXGETSEL, 0, (LPARAM) &range);
1253 return range.cpMin;
1254 }
1255 #endif // wxUSE_RICHEDIT
1256
1257 return wxTextEntry::GetInsertionPoint();
1258 }
1259
1260 wxTextPos wxTextCtrl::GetLastPosition() const
1261 {
1262 if ( IsMultiLine() )
1263 {
1264 int numLines = GetNumberOfLines();
1265 long posStartLastLine = XYToPosition(0, numLines - 1);
1266
1267 long lenLastLine = GetLengthOfLineContainingPos(posStartLastLine);
1268
1269 return posStartLastLine + lenLastLine;
1270 }
1271
1272 return wxTextEntry::GetLastPosition();
1273 }
1274
1275 // If the return values from and to are the same, there is no
1276 // selection.
1277 void wxTextCtrl::GetSelection(long *from, long *to) const
1278 {
1279 #if wxUSE_RICHEDIT
1280 if ( IsRich() )
1281 {
1282 CHARRANGE charRange;
1283 ::SendMessage(GetHwnd(), EM_EXGETSEL, 0, (LPARAM) &charRange);
1284
1285 *from = charRange.cpMin;
1286 *to = charRange.cpMax;
1287 }
1288 else
1289 #endif // !wxUSE_RICHEDIT
1290 {
1291 wxTextEntry::GetSelection(from, to);
1292 }
1293 }
1294
1295 // ----------------------------------------------------------------------------
1296 // selection
1297 // ----------------------------------------------------------------------------
1298
1299 void wxTextCtrl::DoSetSelection(long from, long to, int flags)
1300 {
1301 HWND hWnd = GetHwnd();
1302
1303 #if wxUSE_RICHEDIT
1304 if ( IsRich() )
1305 {
1306 CHARRANGE range;
1307 range.cpMin = from;
1308 range.cpMax = to;
1309 ::SendMessage(hWnd, EM_EXSETSEL, 0, (LPARAM)&range);
1310 }
1311 else
1312 #endif // wxUSE_RICHEDIT
1313 {
1314 wxTextEntry::DoSetSelection(from, to, flags);
1315 }
1316
1317 if ( (flags & SetSel_Scroll) && !IsFrozen() )
1318 {
1319 #if wxUSE_RICHEDIT
1320 // richedit 3.0 (i.e. the version living in riched20.dll distributed
1321 // with Windows 2000 and beyond) doesn't honour EM_SCROLLCARET when
1322 // emulating richedit 2.0 unless the control has focus or ECO_NOHIDESEL
1323 // option is set (but it does work ok in richedit 1.0 mode...)
1324 //
1325 // so to make it work we either need to give focus to it here which
1326 // will probably create many problems (dummy focus events; window
1327 // containing the text control being brought to foreground
1328 // unexpectedly; ...) or to temporarily set ECO_NOHIDESEL which may
1329 // create other problems too -- and in fact it does because if we turn
1330 // on/off this style while appending the text to the control, the
1331 // vertical scrollbar never appears in it even if we append tons of
1332 // text and to work around this the only solution I found was to use
1333 // ES_DISABLENOSCROLL
1334 //
1335 // this is very ugly but I don't see any other way to make this work
1336 long style = 0;
1337 if ( GetRichVersion() > 1 )
1338 {
1339 if ( !HasFlag(wxTE_NOHIDESEL) )
1340 {
1341 // setting ECO_NOHIDESEL also sets WS_VISIBLE and possibly
1342 // others, remember the style so we can reset it later if needed
1343 style = ::GetWindowLong(GetHwnd(), GWL_STYLE);
1344 ::SendMessage(GetHwnd(), EM_SETOPTIONS,
1345 ECOOP_OR, ECO_NOHIDESEL);
1346 }
1347 //else: everything is already ok
1348 }
1349 #endif // wxUSE_RICHEDIT
1350
1351 ::SendMessage(hWnd, EM_SCROLLCARET, 0, (LPARAM)0);
1352
1353 #if wxUSE_RICHEDIT
1354 // restore ECO_NOHIDESEL if we changed it
1355 if ( GetRichVersion() > 1 && !HasFlag(wxTE_NOHIDESEL) )
1356 {
1357 ::SendMessage(GetHwnd(), EM_SETOPTIONS,
1358 ECOOP_AND, ~ECO_NOHIDESEL);
1359 if ( style != ::GetWindowLong(GetHwnd(), GWL_STYLE) )
1360 ::SetWindowLong(GetHwnd(), GWL_STYLE, style);
1361 }
1362 #endif // wxUSE_RICHEDIT
1363 }
1364 }
1365
1366 // ----------------------------------------------------------------------------
1367 // Working with files
1368 // ----------------------------------------------------------------------------
1369
1370 bool wxTextCtrl::DoLoadFile(const wxString& file, int fileType)
1371 {
1372 if ( wxTextCtrlBase::DoLoadFile(file, fileType) )
1373 {
1374 // update the size limit if needed
1375 AdjustSpaceLimit();
1376
1377 return true;
1378 }
1379
1380 return false;
1381 }
1382
1383 // ----------------------------------------------------------------------------
1384 // dirty status
1385 // ----------------------------------------------------------------------------
1386
1387 bool wxTextCtrl::IsModified() const
1388 {
1389 return ::SendMessage(GetHwnd(), EM_GETMODIFY, 0, 0) != 0;
1390 }
1391
1392 void wxTextCtrl::MarkDirty()
1393 {
1394 ::SendMessage(GetHwnd(), EM_SETMODIFY, TRUE, 0);
1395 }
1396
1397 void wxTextCtrl::DiscardEdits()
1398 {
1399 ::SendMessage(GetHwnd(), EM_SETMODIFY, FALSE, 0);
1400 }
1401
1402 // ----------------------------------------------------------------------------
1403 // Positions <-> coords
1404 // ----------------------------------------------------------------------------
1405
1406 int wxTextCtrl::GetNumberOfLines() const
1407 {
1408 return (int)::SendMessage(GetHwnd(), EM_GETLINECOUNT, 0, 0);
1409 }
1410
1411 long wxTextCtrl::XYToPosition(long x, long y) const
1412 {
1413 // This gets the char index for the _beginning_ of this line
1414 long charIndex = ::SendMessage(GetHwnd(), EM_LINEINDEX, y, 0);
1415
1416 return charIndex + x;
1417 }
1418
1419 bool wxTextCtrl::PositionToXY(long pos, long *x, long *y) const
1420 {
1421 HWND hWnd = GetHwnd();
1422
1423 // This gets the line number containing the character
1424 long lineNo;
1425 #if wxUSE_RICHEDIT
1426 if ( IsRich() )
1427 {
1428 lineNo = ::SendMessage(hWnd, EM_EXLINEFROMCHAR, 0, pos);
1429 }
1430 else
1431 #endif // wxUSE_RICHEDIT
1432 {
1433 lineNo = ::SendMessage(hWnd, EM_LINEFROMCHAR, pos, 0);
1434 }
1435
1436 if ( lineNo == -1 )
1437 {
1438 // no such line
1439 return false;
1440 }
1441
1442 // This gets the char index for the _beginning_ of this line
1443 long charIndex = ::SendMessage(hWnd, EM_LINEINDEX, lineNo, 0);
1444 if ( charIndex == -1 )
1445 {
1446 return false;
1447 }
1448
1449 // The X position must therefore be the different between pos and charIndex
1450 if ( x )
1451 *x = pos - charIndex;
1452 if ( y )
1453 *y = lineNo;
1454
1455 return true;
1456 }
1457
1458 wxTextCtrlHitTestResult
1459 wxTextCtrl::HitTest(const wxPoint& pt, long *posOut) const
1460 {
1461 // first get the position from Windows
1462 LPARAM lParam;
1463
1464 #if wxUSE_RICHEDIT
1465 POINTL ptl;
1466 if ( IsRich() )
1467 {
1468 // for rich edit controls the position is passed iva the struct fields
1469 ptl.x = pt.x;
1470 ptl.y = pt.y;
1471 lParam = (LPARAM)&ptl;
1472 }
1473 else
1474 #endif // wxUSE_RICHEDIT
1475 {
1476 // for the plain ones, we are limited to 16 bit positions which are
1477 // combined in a single 32 bit value
1478 lParam = MAKELPARAM(pt.x, pt.y);
1479 }
1480
1481 LRESULT pos = ::SendMessage(GetHwnd(), EM_CHARFROMPOS, 0, lParam);
1482
1483 if ( pos == -1 )
1484 {
1485 // this seems to indicate an error...
1486 return wxTE_HT_UNKNOWN;
1487 }
1488
1489 #if wxUSE_RICHEDIT
1490 if ( !IsRich() )
1491 #endif // wxUSE_RICHEDIT
1492 {
1493 // for plain EDIT controls the higher word contains something else
1494 pos = LOWORD(pos);
1495 }
1496
1497
1498 // next determine where it is relatively to our point: EM_CHARFROMPOS
1499 // always returns the closest character but we need to be more precise, so
1500 // double check that we really are where it pretends
1501 POINTL ptReal;
1502
1503 #if wxUSE_RICHEDIT
1504 // FIXME: we need to distinguish between richedit 2 and 3 here somehow but
1505 // we don't know how to do it
1506 if ( IsRich() )
1507 {
1508 ::SendMessage(GetHwnd(), EM_POSFROMCHAR, (WPARAM)&ptReal, pos);
1509 }
1510 else
1511 #endif // wxUSE_RICHEDIT
1512 {
1513 LRESULT lRc = ::SendMessage(GetHwnd(), EM_POSFROMCHAR, pos, 0);
1514
1515 if ( lRc == -1 )
1516 {
1517 // this is apparently returned when pos corresponds to the last
1518 // position
1519 ptReal.x =
1520 ptReal.y = 0;
1521 }
1522 else
1523 {
1524 ptReal.x = LOWORD(lRc);
1525 ptReal.y = HIWORD(lRc);
1526 }
1527 }
1528
1529 wxTextCtrlHitTestResult rc;
1530
1531 if ( pt.y > ptReal.y + GetCharHeight() )
1532 rc = wxTE_HT_BELOW;
1533 else if ( pt.x > ptReal.x + GetCharWidth() )
1534 rc = wxTE_HT_BEYOND;
1535 else
1536 rc = wxTE_HT_ON_TEXT;
1537
1538 if ( posOut )
1539 *posOut = pos;
1540
1541 return rc;
1542 }
1543
1544 // ----------------------------------------------------------------------------
1545 //
1546 // ----------------------------------------------------------------------------
1547
1548 void wxTextCtrl::ShowPosition(long pos)
1549 {
1550 HWND hWnd = GetHwnd();
1551
1552 // To scroll to a position, we pass the number of lines and characters
1553 // to scroll *by*. This means that we need to:
1554 // (1) Find the line position of the current line.
1555 // (2) Find the line position of pos.
1556 // (3) Scroll by (pos - current).
1557 // For now, ignore the horizontal scrolling.
1558
1559 // Is this where scrolling is relative to - the line containing the caret?
1560 // Or is the first visible line??? Try first visible line.
1561 // int currentLineLineNo1 = (int)::SendMessage(hWnd, EM_LINEFROMCHAR, -1, 0L);
1562
1563 int currentLineLineNo = (int)::SendMessage(hWnd, EM_GETFIRSTVISIBLELINE, 0, 0);
1564
1565 int specifiedLineLineNo = (int)::SendMessage(hWnd, EM_LINEFROMCHAR, pos, 0);
1566
1567 int linesToScroll = specifiedLineLineNo - currentLineLineNo;
1568
1569 if (linesToScroll != 0)
1570 ::SendMessage(hWnd, EM_LINESCROLL, 0, linesToScroll);
1571 }
1572
1573 long wxTextCtrl::GetLengthOfLineContainingPos(long pos) const
1574 {
1575 return ::SendMessage(GetHwnd(), EM_LINELENGTH, pos, 0);
1576 }
1577
1578 int wxTextCtrl::GetLineLength(long lineNo) const
1579 {
1580 long pos = XYToPosition(0, lineNo);
1581
1582 return GetLengthOfLineContainingPos(pos);
1583 }
1584
1585 wxString wxTextCtrl::GetLineText(long lineNo) const
1586 {
1587 size_t len = (size_t)GetLineLength(lineNo) + 1;
1588
1589 // there must be at least enough place for the length WORD in the
1590 // buffer
1591 len += sizeof(WORD);
1592
1593 wxString str;
1594 {
1595 wxStringBufferLength tmp(str, len);
1596 wxChar *buf = tmp;
1597
1598 *(WORD *)buf = (WORD)len;
1599 len = (size_t)::SendMessage(GetHwnd(), EM_GETLINE, lineNo, (LPARAM)buf);
1600
1601 #if wxUSE_RICHEDIT
1602 if ( IsRich() )
1603 {
1604 // remove the '\r' returned by the rich edit control, the user code
1605 // should never see it
1606 if ( buf[len - 2] == _T('\r') && buf[len - 1] == _T('\n') )
1607 {
1608 // richedit 1.0 uses "\r\n" as line terminator, so remove "\r"
1609 // here and "\n" below
1610 buf[len - 2] = _T('\n');
1611 len--;
1612 }
1613 else if ( buf[len - 1] == _T('\r') )
1614 {
1615 // richedit 2.0+ uses only "\r", replace it with "\n"
1616 buf[len - 1] = _T('\n');
1617 }
1618 }
1619 #endif // wxUSE_RICHEDIT
1620
1621 // remove the '\n' at the end, if any (this is how this function is
1622 // supposed to work according to the docs)
1623 if ( buf[len - 1] == _T('\n') )
1624 {
1625 len--;
1626 }
1627
1628 buf[len] = 0;
1629 tmp.SetLength(len);
1630 }
1631
1632 return str;
1633 }
1634
1635 void wxTextCtrl::SetMaxLength(unsigned long len)
1636 {
1637 #if wxUSE_RICHEDIT
1638 if ( IsRich() )
1639 {
1640 ::SendMessage(GetHwnd(), EM_EXLIMITTEXT, 0, len ? len : 0x7fffffff);
1641 }
1642 else
1643 #endif // wxUSE_RICHEDIT
1644 {
1645 wxTextEntry::SetMaxLength(len);
1646 }
1647 }
1648
1649 // ----------------------------------------------------------------------------
1650 // Undo/redo
1651 // ----------------------------------------------------------------------------
1652
1653 void wxTextCtrl::Redo()
1654 {
1655 #if wxUSE_RICHEDIT
1656 if ( GetRichVersion() > 1 )
1657 {
1658 ::SendMessage(GetHwnd(), EM_REDO, 0, 0);
1659 return;
1660 }
1661 #endif // wxUSE_RICHEDIT
1662
1663 wxTextEntry::Redo();
1664 }
1665
1666 bool wxTextCtrl::CanRedo() const
1667 {
1668 #if wxUSE_RICHEDIT
1669 if ( GetRichVersion() > 1 )
1670 return ::SendMessage(GetHwnd(), EM_CANREDO, 0, 0) != 0;
1671 #endif // wxUSE_RICHEDIT
1672
1673 return wxTextEntry::CanRedo();
1674 }
1675
1676 // ----------------------------------------------------------------------------
1677 // caret handling (Windows only)
1678 // ----------------------------------------------------------------------------
1679
1680 bool wxTextCtrl::ShowNativeCaret(bool show)
1681 {
1682 if ( show != m_isNativeCaretShown )
1683 {
1684 if ( !(show ? ::ShowCaret(GetHwnd()) : ::HideCaret(GetHwnd())) )
1685 {
1686 // not an error, may simply indicate that it's not shown/hidden
1687 // yet (i.e. it had been hidden/shown 2 times before)
1688 return false;
1689 }
1690
1691 m_isNativeCaretShown = show;
1692 }
1693
1694 return true;
1695 }
1696
1697 // ----------------------------------------------------------------------------
1698 // implementation details
1699 // ----------------------------------------------------------------------------
1700
1701 void wxTextCtrl::Command(wxCommandEvent & event)
1702 {
1703 SetValue(event.GetString());
1704 ProcessCommand (event);
1705 }
1706
1707 void wxTextCtrl::OnDropFiles(wxDropFilesEvent& event)
1708 {
1709 // By default, load the first file into the text window.
1710 if (event.GetNumberOfFiles() > 0)
1711 {
1712 LoadFile(event.GetFiles()[0]);
1713 }
1714 }
1715
1716 // ----------------------------------------------------------------------------
1717 // kbd input processing
1718 // ----------------------------------------------------------------------------
1719
1720 bool wxTextCtrl::MSWShouldPreProcessMessage(WXMSG* msg)
1721 {
1722 // check for our special keys here: if we don't do it and the parent frame
1723 // uses them as accelerators, they wouldn't work at all, so we disable
1724 // usual preprocessing for them
1725 if ( msg->message == WM_KEYDOWN )
1726 {
1727 const WPARAM vkey = msg->wParam;
1728 if ( HIWORD(msg->lParam) & KF_ALTDOWN )
1729 {
1730 // Alt-Backspace is accelerator for "Undo"
1731 if ( vkey == VK_BACK )
1732 return false;
1733 }
1734 else // no Alt
1735 {
1736 // we want to process some Ctrl-foo and Shift-bar but no key
1737 // combinations without either Ctrl or Shift nor with both of them
1738 // pressed
1739 const int ctrl = wxIsCtrlDown(),
1740 shift = wxIsShiftDown();
1741 switch ( ctrl + shift )
1742 {
1743 default:
1744 wxFAIL_MSG( _T("how many modifiers have we got?") );
1745 // fall through
1746
1747 case 0:
1748 if ( IsMultiLine() && vkey == VK_RETURN )
1749 return false;
1750 // fall through
1751 case 2:
1752 break;
1753
1754 case 1:
1755 // either Ctrl or Shift pressed
1756 if ( ctrl )
1757 {
1758 switch ( vkey )
1759 {
1760 case 'C':
1761 case 'V':
1762 case 'X':
1763 case VK_INSERT:
1764 case VK_DELETE:
1765 case VK_HOME:
1766 case VK_END:
1767 return false;
1768 }
1769 }
1770 else // Shift is pressed
1771 {
1772 if ( vkey == VK_INSERT || vkey == VK_DELETE )
1773 return false;
1774 }
1775 }
1776 }
1777 }
1778
1779 return wxControl::MSWShouldPreProcessMessage(msg);
1780 }
1781
1782 void wxTextCtrl::OnChar(wxKeyEvent& event)
1783 {
1784 switch ( event.GetKeyCode() )
1785 {
1786 case WXK_RETURN:
1787 {
1788 wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
1789 InitCommandEvent(event);
1790 event.SetString(GetValue());
1791 if ( HandleWindowEvent(event) )
1792 if ( !HasFlag(wxTE_MULTILINE) )
1793 return;
1794 //else: multiline controls need Enter for themselves
1795 }
1796 break;
1797
1798 case WXK_TAB:
1799 // ok, so this is getting absolutely ridiculous but I don't see
1800 // any other way to fix this bug: when a multiline text control is
1801 // inside a wxFrame, we need to generate the navigation event as
1802 // otherwise nothing happens at all, but when the same control is
1803 // created inside a dialog, IsDialogMessage() *does* switch focus
1804 // all by itself and so if we do it here as well, it is advanced
1805 // twice and goes to the next control... to prevent this from
1806 // happening we're doing this ugly check, the logic being that if
1807 // we don't have focus then it had been already changed to the next
1808 // control
1809 //
1810 // the right thing to do would, of course, be to understand what
1811 // the hell is IsDialogMessage() doing but this is beyond my feeble
1812 // forces at the moment unfortunately
1813 if ( !(m_windowStyle & wxTE_PROCESS_TAB))
1814 {
1815 if ( FindFocus() == this )
1816 {
1817 int flags = 0;
1818 if (!event.ShiftDown())
1819 flags |= wxNavigationKeyEvent::IsForward ;
1820 if (event.ControlDown())
1821 flags |= wxNavigationKeyEvent::WinChange ;
1822 if (Navigate(flags))
1823 return;
1824 }
1825 }
1826 else
1827 {
1828 // Insert tab since calling the default Windows handler
1829 // doesn't seem to do it
1830 WriteText(wxT("\t"));
1831 return;
1832 }
1833 break;
1834 }
1835
1836 // no, we didn't process it
1837 event.Skip();
1838 }
1839
1840 WXLRESULT wxTextCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
1841 {
1842 WXLRESULT lRc = wxTextCtrlBase::MSWWindowProc(nMsg, wParam, lParam);
1843
1844 switch ( nMsg )
1845 {
1846 case WM_GETDLGCODE:
1847 {
1848 // we always want the chars and the arrows: the arrows for
1849 // navigation and the chars because we want Ctrl-C to work even
1850 // in a read only control
1851 long lDlgCode = DLGC_WANTCHARS | DLGC_WANTARROWS;
1852
1853 if ( IsEditable() )
1854 {
1855 // we may have several different cases:
1856 // 1. normal: both TAB and ENTER are used for navigation
1857 // 2. ctrl wants TAB for itself: ENTER is used to pass to
1858 // the next control in the dialog
1859 // 3. ctrl wants ENTER for itself: TAB is used for dialog
1860 // navigation
1861 // 4. ctrl wants both TAB and ENTER: Ctrl-ENTER is used to
1862 // go to the next control (we need some way to do it)
1863
1864 // multiline controls should always get ENTER for themselves
1865 if ( HasFlag(wxTE_PROCESS_ENTER) || HasFlag(wxTE_MULTILINE) )
1866 lDlgCode |= DLGC_WANTMESSAGE;
1867
1868 if ( HasFlag(wxTE_PROCESS_TAB) )
1869 lDlgCode |= DLGC_WANTTAB;
1870
1871 lRc |= lDlgCode;
1872 }
1873 else // !editable
1874 {
1875 // NB: use "=", not "|=" as the base class version returns
1876 // the same flags is this state as usual (i.e.
1877 // including DLGC_WANTMESSAGE). This is strange (how
1878 // does it work in the native Win32 apps?) but for now
1879 // live with it.
1880 lRc = lDlgCode;
1881 }
1882 }
1883 break;
1884 }
1885
1886 return lRc;
1887 }
1888
1889 // ----------------------------------------------------------------------------
1890 // text control event processing
1891 // ----------------------------------------------------------------------------
1892
1893 bool wxTextCtrl::SendUpdateEvent()
1894 {
1895 switch ( m_updatesCount )
1896 {
1897 case 0:
1898 // remember that we've got an update
1899 m_updatesCount++;
1900 break;
1901
1902 case 1:
1903 // we had already sent one event since the last control modification
1904 return false;
1905
1906 default:
1907 wxFAIL_MSG( _T("unexpected wxTextCtrl::m_updatesCount value") );
1908 // fall through
1909
1910 case -1:
1911 // we hadn't updated the control ourselves, this event comes from
1912 // the user, don't need to ignore it nor update the count
1913 break;
1914
1915 case -2:
1916 // the control was updated programmatically and we do NOT want to
1917 // send events
1918 return false;
1919 }
1920
1921 return SendTextUpdatedEvent();
1922 }
1923
1924 bool wxTextCtrl::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
1925 {
1926 switch ( param )
1927 {
1928 case EN_CHANGE:
1929 SendUpdateEvent();
1930 break;
1931
1932 case EN_MAXTEXT:
1933 // the text size limit has been hit -- try to increase it
1934 if ( !AdjustSpaceLimit() )
1935 {
1936 wxCommandEvent event(wxEVT_COMMAND_TEXT_MAXLEN, m_windowId);
1937 InitCommandEvent(event);
1938 event.SetString(GetValue());
1939 ProcessCommand(event);
1940 }
1941 break;
1942
1943 // the other edit notification messages are not processed (or, in
1944 // the case of EN_{SET/KILL}FOCUS were already handled at WM_SET/
1945 // KILLFOCUS level)
1946 default:
1947 return false;
1948 }
1949
1950 // processed
1951 return true;
1952 }
1953
1954 WXHBRUSH wxTextCtrl::MSWControlColor(WXHDC hDC, WXHWND hWnd)
1955 {
1956 if ( !IsEnabled() && !HasFlag(wxTE_MULTILINE) )
1957 return MSWControlColorDisabled(hDC);
1958
1959 return wxTextCtrlBase::MSWControlColor(hDC, hWnd);
1960 }
1961
1962 bool wxTextCtrl::HasSpaceLimit(unsigned int *len) const
1963 {
1964 // HACK: we try to automatically extend the limit for the amount of text
1965 // to allow (interactively) entering more than 64Kb of text under
1966 // Win9x but we shouldn't reset the text limit which was previously
1967 // set explicitly with SetMaxLength()
1968 //
1969 // Unfortunately there is no EM_GETLIMITTEXTSETBYUSER and so we don't
1970 // know the limit we set (if any). We could solve this by storing the
1971 // limit we set in wxTextCtrl but to save space we prefer to simply
1972 // test here the actual limit value: we consider that SetMaxLength()
1973 // can only be called for small values while EN_MAXTEXT is only sent
1974 // for large values (in practice the default limit seems to be 30000
1975 // but make it smaller just to be on the safe side)
1976 *len = ::SendMessage(GetHwnd(), EM_GETLIMITTEXT, 0, 0);
1977 return *len < 10001;
1978
1979 }
1980
1981 bool wxTextCtrl::AdjustSpaceLimit()
1982 {
1983 unsigned int limit;
1984 if ( HasSpaceLimit(&limit) )
1985 return false;
1986
1987 unsigned int len = ::GetWindowTextLength(GetHwnd());
1988 if ( len >= limit )
1989 {
1990 // increment in 32Kb chunks
1991 SetMaxLength(len + 0x8000);
1992 }
1993
1994 // we changed the limit
1995 return true;
1996 }
1997
1998 bool wxTextCtrl::AcceptsFocusFromKeyboard() const
1999 {
2000 // we don't want focus if we can't be edited unless we're a multiline
2001 // control because then it might be still nice to get focus from keyboard
2002 // to be able to scroll it without mouse
2003 return (IsEditable() || IsMultiLine()) && wxControl::AcceptsFocus();
2004 }
2005
2006 wxSize wxTextCtrl::DoGetBestSize() const
2007 {
2008 int cx, cy;
2009 wxGetCharSize(GetHWND(), &cx, &cy, GetFont());
2010
2011 int wText = DEFAULT_ITEM_WIDTH;
2012
2013 int hText = cy;
2014 if ( m_windowStyle & wxTE_MULTILINE )
2015 {
2016 hText *= wxMax(wxMin(GetNumberOfLines(), 10), 2);
2017 }
2018 //else: for single line control everything is ok
2019
2020 // we have to add the adjustments for the control height only once, not
2021 // once per line, so do it after multiplication above
2022 hText += EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy) - cy;
2023
2024 return wxSize(wText, hText);
2025 }
2026
2027 // ----------------------------------------------------------------------------
2028 // standard handlers for standard edit menu events
2029 // ----------------------------------------------------------------------------
2030
2031 void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
2032 {
2033 Cut();
2034 }
2035
2036 void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
2037 {
2038 Copy();
2039 }
2040
2041 void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
2042 {
2043 Paste();
2044 }
2045
2046 void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
2047 {
2048 Undo();
2049 }
2050
2051 void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
2052 {
2053 Redo();
2054 }
2055
2056 void wxTextCtrl::OnDelete(wxCommandEvent& WXUNUSED(event))
2057 {
2058 long from, to;
2059 GetSelection(& from, & to);
2060 if (from != -1 && to != -1)
2061 Remove(from, to);
2062 }
2063
2064 void wxTextCtrl::OnSelectAll(wxCommandEvent& WXUNUSED(event))
2065 {
2066 SetSelection(-1, -1);
2067 }
2068
2069 void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
2070 {
2071 event.Enable( CanCut() );
2072 }
2073
2074 void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
2075 {
2076 event.Enable( CanCopy() );
2077 }
2078
2079 void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
2080 {
2081 event.Enable( CanPaste() );
2082 }
2083
2084 void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
2085 {
2086 event.Enable( CanUndo() );
2087 }
2088
2089 void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
2090 {
2091 event.Enable( CanRedo() );
2092 }
2093
2094 void wxTextCtrl::OnUpdateDelete(wxUpdateUIEvent& event)
2095 {
2096 long from, to;
2097 GetSelection(& from, & to);
2098 event.Enable(from != -1 && to != -1 && from != to && IsEditable()) ;
2099 }
2100
2101 void wxTextCtrl::OnUpdateSelectAll(wxUpdateUIEvent& event)
2102 {
2103 event.Enable(GetLastPosition() > 0);
2104 }
2105
2106 void wxTextCtrl::OnContextMenu(wxContextMenuEvent& event)
2107 {
2108 #if wxUSE_RICHEDIT
2109 if (IsRich())
2110 {
2111 if (!m_privateContextMenu)
2112 {
2113 m_privateContextMenu = new wxMenu;
2114 m_privateContextMenu->Append(wxID_UNDO, _("&Undo"));
2115 m_privateContextMenu->Append(wxID_REDO, _("&Redo"));
2116 m_privateContextMenu->AppendSeparator();
2117 m_privateContextMenu->Append(wxID_CUT, _("Cu&t"));
2118 m_privateContextMenu->Append(wxID_COPY, _("&Copy"));
2119 m_privateContextMenu->Append(wxID_PASTE, _("&Paste"));
2120 m_privateContextMenu->Append(wxID_CLEAR, _("&Delete"));
2121 m_privateContextMenu->AppendSeparator();
2122 m_privateContextMenu->Append(wxID_SELECTALL, _("Select &All"));
2123 }
2124 PopupMenu(m_privateContextMenu);
2125 return;
2126 }
2127 else
2128 #endif
2129 event.Skip();
2130 }
2131
2132 void wxTextCtrl::OnSetFocus(wxFocusEvent& event)
2133 {
2134 // be sure the caret remains invisible if the user had hidden it
2135 if ( !m_isNativeCaretShown )
2136 {
2137 ::HideCaret(GetHwnd());
2138 }
2139
2140 event.Skip();
2141 }
2142
2143 // ----------------------------------------------------------------------------
2144 // Default colors for MSW text control
2145 //
2146 // Set default background color to the native white instead of
2147 // the default wxSYS_COLOUR_BTNFACE (is triggered with wxNullColour).
2148 // ----------------------------------------------------------------------------
2149
2150 wxVisualAttributes wxTextCtrl::GetDefaultAttributes() const
2151 {
2152 wxVisualAttributes attrs;
2153 attrs.font = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
2154 attrs.colFg = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT);
2155 attrs.colBg = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW); //white
2156
2157 return attrs;
2158 }
2159
2160 // the rest of the file only deals with the rich edit controls
2161 #if wxUSE_RICHEDIT
2162
2163 // ----------------------------------------------------------------------------
2164 // EN_LINK processing
2165 // ----------------------------------------------------------------------------
2166
2167 bool wxTextCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
2168 {
2169 NMHDR *hdr = (NMHDR* )lParam;
2170 switch ( hdr->code )
2171 {
2172 case EN_MSGFILTER:
2173 {
2174 const MSGFILTER *msgf = (MSGFILTER *)lParam;
2175 UINT msg = msgf->msg;
2176
2177 // this is a bit crazy but richedit 1.0 sends us all mouse
2178 // events _except_ WM_LBUTTONUP (don't ask me why) so we have
2179 // generate the wxWin events for this message manually
2180 //
2181 // NB: in fact, this is still not totally correct as it does
2182 // send us WM_LBUTTONUP if the selection was cleared by the
2183 // last click -- so currently we get 2 events in this case,
2184 // but as I don't see any obvious way to check for this I
2185 // leave this code in place because it's still better than
2186 // not getting left up events at all
2187 if ( msg == WM_LBUTTONUP )
2188 {
2189 WXUINT flags = msgf->wParam;
2190 int x = GET_X_LPARAM(msgf->lParam),
2191 y = GET_Y_LPARAM(msgf->lParam);
2192
2193 HandleMouseEvent(msg, x, y, flags);
2194 }
2195 }
2196
2197 // return true to process the event (and false to ignore it)
2198 return true;
2199
2200 case EN_LINK:
2201 {
2202 const ENLINK *enlink = (ENLINK *)hdr;
2203
2204 switch ( enlink->msg )
2205 {
2206 case WM_SETCURSOR:
2207 // ok, so it is hardcoded - do we really nee to
2208 // customize it?
2209 {
2210 wxCursor cur(wxCURSOR_HAND);
2211 ::SetCursor(GetHcursorOf(cur));
2212 *result = TRUE;
2213 break;
2214 }
2215
2216 case WM_MOUSEMOVE:
2217 case WM_LBUTTONDOWN:
2218 case WM_LBUTTONUP:
2219 case WM_LBUTTONDBLCLK:
2220 case WM_RBUTTONDOWN:
2221 case WM_RBUTTONUP:
2222 case WM_RBUTTONDBLCLK:
2223 // send a mouse event
2224 {
2225 static const wxEventType eventsMouse[] =
2226 {
2227 wxEVT_MOTION,
2228 wxEVT_LEFT_DOWN,
2229 wxEVT_LEFT_UP,
2230 wxEVT_LEFT_DCLICK,
2231 wxEVT_RIGHT_DOWN,
2232 wxEVT_RIGHT_UP,
2233 wxEVT_RIGHT_DCLICK,
2234 };
2235
2236 // the event ids are consecutive
2237 wxMouseEvent
2238 evtMouse(eventsMouse[enlink->msg - WM_MOUSEMOVE]);
2239
2240 InitMouseEvent(evtMouse,
2241 GET_X_LPARAM(enlink->lParam),
2242 GET_Y_LPARAM(enlink->lParam),
2243 enlink->wParam);
2244
2245 wxTextUrlEvent event(m_windowId, evtMouse,
2246 enlink->chrg.cpMin,
2247 enlink->chrg.cpMax);
2248
2249 InitCommandEvent(event);
2250
2251 *result = ProcessCommand(event);
2252 }
2253 break;
2254 }
2255 }
2256 return true;
2257 }
2258
2259 // not processed, leave it to the base class
2260 return wxTextCtrlBase::MSWOnNotify(idCtrl, lParam, result);
2261 }
2262
2263 #if wxUSE_DRAG_AND_DROP
2264
2265 void wxTextCtrl::SetDropTarget(wxDropTarget *dropTarget)
2266 {
2267 if ( m_dropTarget == wxRICHTEXT_DEFAULT_DROPTARGET )
2268 {
2269 // get rid of the built-in drop target
2270 ::RevokeDragDrop(GetHwnd());
2271 m_dropTarget = NULL;
2272 }
2273
2274 wxTextCtrlBase::SetDropTarget(dropTarget);
2275 }
2276
2277 #endif // wxUSE_DRAG_AND_DROP
2278
2279 // ----------------------------------------------------------------------------
2280 // colour setting for the rich edit controls
2281 // ----------------------------------------------------------------------------
2282
2283 bool wxTextCtrl::SetBackgroundColour(const wxColour& colour)
2284 {
2285 if ( !wxTextCtrlBase::SetBackgroundColour(colour) )
2286 {
2287 // colour didn't really change
2288 return false;
2289 }
2290
2291 if ( IsRich() )
2292 {
2293 // rich edit doesn't use WM_CTLCOLOR, hence we need to send
2294 // EM_SETBKGNDCOLOR additionally
2295 ::SendMessage(GetHwnd(), EM_SETBKGNDCOLOR, 0, wxColourToRGB(colour));
2296 }
2297
2298 return true;
2299 }
2300
2301 bool wxTextCtrl::SetForegroundColour(const wxColour& colour)
2302 {
2303 if ( !wxTextCtrlBase::SetForegroundColour(colour) )
2304 {
2305 // colour didn't really change
2306 return false;
2307 }
2308
2309 if ( IsRich() )
2310 {
2311 // change the colour of everything
2312 CHARFORMAT cf;
2313 wxZeroMemory(cf);
2314 cf.cbSize = sizeof(cf);
2315 cf.dwMask = CFM_COLOR;
2316 cf.crTextColor = wxColourToRGB(colour);
2317 ::SendMessage(GetHwnd(), EM_SETCHARFORMAT, SCF_ALL, (LPARAM)&cf);
2318 }
2319
2320 return true;
2321 }
2322
2323 // ----------------------------------------------------------------------------
2324 // styling support for rich edit controls
2325 // ----------------------------------------------------------------------------
2326
2327 bool wxTextCtrl::SetStyle(long start, long end, const wxTextAttr& style)
2328 {
2329 if ( !IsRich() )
2330 {
2331 // can't do it with normal text control
2332 return false;
2333 }
2334
2335 // the richedit 1.0 doesn't handle setting background colour, so don't
2336 // even try to do anything if it's the only thing we want to change
2337 if ( m_verRichEdit == 1 && !style.HasFont() && !style.HasTextColour() &&
2338 !style.HasLeftIndent() && !style.HasRightIndent() && !style.HasAlignment() &&
2339 !style.HasTabs() )
2340 {
2341 // nothing to do: return true if there was really nothing to do and
2342 // false if we failed to set bg colour
2343 return !style.HasBackgroundColour();
2344 }
2345
2346 // order the range if needed
2347 if ( start > end )
2348 {
2349 long tmp = start;
2350 start = end;
2351 end = tmp;
2352 }
2353
2354 // we can only change the format of the selection, so select the range we
2355 // want and restore the old selection later
2356 long startOld, endOld;
2357 GetSelection(&startOld, &endOld);
2358
2359 // but do we really have to change the selection?
2360 bool changeSel = start != startOld || end != endOld;
2361
2362 if ( changeSel )
2363 {
2364 DoSetSelection(start, end, SetSel_NoScroll);
2365 }
2366
2367 // initialize CHARFORMAT struct
2368 #if wxUSE_RICHEDIT2
2369 CHARFORMAT2 cf;
2370 #else
2371 CHARFORMAT cf;
2372 #endif
2373
2374 wxZeroMemory(cf);
2375
2376 // we can't use CHARFORMAT2 with RichEdit 1.0, so pretend it is a simple
2377 // CHARFORMAT in that case
2378 #if wxUSE_RICHEDIT2
2379 if ( m_verRichEdit == 1 )
2380 {
2381 // this is the only thing the control is going to grok
2382 cf.cbSize = sizeof(CHARFORMAT);
2383 }
2384 else
2385 #endif
2386 {
2387 // CHARFORMAT or CHARFORMAT2
2388 cf.cbSize = sizeof(cf);
2389 }
2390
2391 if ( style.HasFont() )
2392 {
2393 // VZ: CFM_CHARSET doesn't seem to do anything at all in RichEdit 2.0
2394 // but using it doesn't seem to hurt neither so leaving it for now
2395
2396 cf.dwMask |= CFM_FACE | CFM_SIZE | CFM_CHARSET |
2397 CFM_ITALIC | CFM_BOLD | CFM_UNDERLINE;
2398
2399 // fill in data from LOGFONT but recalculate lfHeight because we need
2400 // the real height in twips and not the negative number which
2401 // wxFillLogFont() returns (this is correct in general and works with
2402 // the Windows font mapper, but not here)
2403
2404 wxFont font(style.GetFont());
2405
2406 LOGFONT lf;
2407 wxFillLogFont(&lf, &font);
2408 cf.yHeight = 20*font.GetPointSize(); // 1 pt = 20 twips
2409 cf.bCharSet = lf.lfCharSet;
2410 cf.bPitchAndFamily = lf.lfPitchAndFamily;
2411 wxStrncpy( cf.szFaceName, lf.lfFaceName, WXSIZEOF(cf.szFaceName) );
2412
2413 // also deal with underline/italic/bold attributes: note that we must
2414 // always set CFM_ITALIC &c bits in dwMask, even if we don't set the
2415 // style to allow clearing it
2416 if ( lf.lfItalic )
2417 {
2418 cf.dwEffects |= CFE_ITALIC;
2419 }
2420
2421 if ( lf.lfWeight == FW_BOLD )
2422 {
2423 cf.dwEffects |= CFE_BOLD;
2424 }
2425
2426 if ( lf.lfUnderline )
2427 {
2428 cf.dwEffects |= CFE_UNDERLINE;
2429 }
2430
2431 // strikeout fonts are not supported by wxWidgets
2432 }
2433
2434 if ( style.HasTextColour() )
2435 {
2436 cf.dwMask |= CFM_COLOR;
2437 cf.crTextColor = wxColourToRGB(style.GetTextColour());
2438 }
2439
2440 #if wxUSE_RICHEDIT2
2441 if ( m_verRichEdit != 1 && style.HasBackgroundColour() )
2442 {
2443 cf.dwMask |= CFM_BACKCOLOR;
2444 cf.crBackColor = wxColourToRGB(style.GetBackgroundColour());
2445 }
2446 #endif // wxUSE_RICHEDIT2
2447
2448 // do format the selection
2449 bool ok = ::SendMessage(GetHwnd(), EM_SETCHARFORMAT,
2450 SCF_SELECTION, (LPARAM)&cf) != 0;
2451 if ( !ok )
2452 {
2453 wxLogDebug(_T("SendMessage(EM_SETCHARFORMAT, SCF_SELECTION) failed"));
2454 }
2455
2456 // now do the paragraph formatting
2457 PARAFORMAT2 pf;
2458 wxZeroMemory(pf);
2459 // we can't use PARAFORMAT2 with RichEdit 1.0, so pretend it is a simple
2460 // PARAFORMAT in that case
2461 #if wxUSE_RICHEDIT2
2462 if ( m_verRichEdit == 1 )
2463 {
2464 // this is the only thing the control is going to grok
2465 pf.cbSize = sizeof(PARAFORMAT);
2466 }
2467 else
2468 #endif
2469 {
2470 // PARAFORMAT or PARAFORMAT2
2471 pf.cbSize = sizeof(pf);
2472 }
2473
2474 if (style.HasAlignment())
2475 {
2476 pf.dwMask |= PFM_ALIGNMENT;
2477 if (style.GetAlignment() == wxTEXT_ALIGNMENT_RIGHT)
2478 pf.wAlignment = PFA_RIGHT;
2479 else if (style.GetAlignment() == wxTEXT_ALIGNMENT_CENTRE)
2480 pf.wAlignment = PFA_CENTER;
2481 else if (style.GetAlignment() == wxTEXT_ALIGNMENT_JUSTIFIED)
2482 pf.wAlignment = PFA_JUSTIFY;
2483 else
2484 pf.wAlignment = PFA_LEFT;
2485 }
2486
2487 if (style.HasLeftIndent())
2488 {
2489 pf.dwMask |= PFM_STARTINDENT | PFM_OFFSET;
2490
2491 // Convert from 1/10 mm to TWIPS
2492 pf.dxStartIndent = (int) (((double) style.GetLeftIndent()) * mm2twips / 10.0) ;
2493 pf.dxOffset = (int) (((double) style.GetLeftSubIndent()) * mm2twips / 10.0) ;
2494 }
2495
2496 if (style.HasRightIndent())
2497 {
2498 pf.dwMask |= PFM_RIGHTINDENT;
2499
2500 // Convert from 1/10 mm to TWIPS
2501 pf.dxRightIndent = (int) (((double) style.GetRightIndent()) * mm2twips / 10.0) ;
2502 }
2503
2504 if (style.HasTabs())
2505 {
2506 pf.dwMask |= PFM_TABSTOPS;
2507
2508 const wxArrayInt& tabs = style.GetTabs();
2509
2510 pf.cTabCount = (SHORT)wxMin(tabs.GetCount(), MAX_TAB_STOPS);
2511 size_t i;
2512 for (i = 0; i < (size_t) pf.cTabCount; i++)
2513 {
2514 // Convert from 1/10 mm to TWIPS
2515 pf.rgxTabs[i] = (int) (((double) tabs[i]) * mm2twips / 10.0) ;
2516 }
2517 }
2518
2519 #if wxUSE_RICHEDIT2
2520 if ( m_verRichEdit > 1 )
2521 {
2522 if ( wxTheApp->GetLayoutDirection() == wxLayout_RightToLeft )
2523 {
2524 // Use RTL paragraphs in RTL mode to get proper layout
2525 pf.dwMask |= PFM_RTLPARA;
2526 pf.wEffects |= PFE_RTLPARA;
2527 }
2528 }
2529 #endif // wxUSE_RICHEDIT2
2530
2531 if ( pf.dwMask )
2532 {
2533 // do format the selection
2534 bool ok = ::SendMessage(GetHwnd(), EM_SETPARAFORMAT,
2535 0, (LPARAM) &pf) != 0;
2536 if ( !ok )
2537 {
2538 wxLogDebug(_T("SendMessage(EM_SETPARAFORMAT, 0) failed"));
2539 }
2540 }
2541
2542 if ( changeSel )
2543 {
2544 // restore the original selection
2545 DoSetSelection(startOld, endOld, SetSel_NoScroll);
2546 }
2547
2548 return ok;
2549 }
2550
2551 bool wxTextCtrl::SetDefaultStyle(const wxTextAttr& style)
2552 {
2553 if ( !wxTextCtrlBase::SetDefaultStyle(style) )
2554 return false;
2555
2556 if ( IsEditable() )
2557 {
2558 // we have to do this or the style wouldn't apply for the text typed by
2559 // the user
2560 wxTextPos posLast = GetLastPosition();
2561 SetStyle(posLast, posLast, m_defaultStyle);
2562 }
2563
2564 return true;
2565 }
2566
2567 bool wxTextCtrl::GetStyle(long position, wxTextAttr& style)
2568 {
2569 if ( !IsRich() )
2570 {
2571 // can't do it with normal text control
2572 return false;
2573 }
2574
2575 // initialize CHARFORMAT struct
2576 #if wxUSE_RICHEDIT2
2577 CHARFORMAT2 cf;
2578 #else
2579 CHARFORMAT cf;
2580 #endif
2581
2582 wxZeroMemory(cf);
2583
2584 // we can't use CHARFORMAT2 with RichEdit 1.0, so pretend it is a simple
2585 // CHARFORMAT in that case
2586 #if wxUSE_RICHEDIT2
2587 if ( m_verRichEdit == 1 )
2588 {
2589 // this is the only thing the control is going to grok
2590 cf.cbSize = sizeof(CHARFORMAT);
2591 }
2592 else
2593 #endif
2594 {
2595 // CHARFORMAT or CHARFORMAT2
2596 cf.cbSize = sizeof(cf);
2597 }
2598 // we can only change the format of the selection, so select the range we
2599 // want and restore the old selection later
2600 long startOld, endOld;
2601 GetSelection(&startOld, &endOld);
2602
2603 // but do we really have to change the selection?
2604 bool changeSel = position != startOld || position != endOld;
2605
2606 if ( changeSel )
2607 {
2608 DoSetSelection(position, position + 1, SetSel_NoScroll);
2609 }
2610
2611 // get the selection formatting
2612 (void) ::SendMessage(GetHwnd(), EM_GETCHARFORMAT,
2613 SCF_SELECTION, (LPARAM)&cf) ;
2614
2615
2616 LOGFONT lf;
2617 lf.lfHeight = cf.yHeight;
2618 lf.lfWidth = 0;
2619 lf.lfCharSet = ANSI_CHARSET; // FIXME: how to get correct charset?
2620 lf.lfClipPrecision = 0;
2621 lf.lfEscapement = 0;
2622 wxStrcpy(lf.lfFaceName, cf.szFaceName);
2623
2624 //NOTE: we _MUST_ set each of these values to _something_ since we
2625 //do not call wxZeroMemory on the LOGFONT lf
2626 if (cf.dwEffects & CFE_ITALIC)
2627 lf.lfItalic = TRUE;
2628 else
2629 lf.lfItalic = FALSE;
2630
2631 lf.lfOrientation = 0;
2632 lf.lfPitchAndFamily = cf.bPitchAndFamily;
2633 lf.lfQuality = 0;
2634
2635 if (cf.dwEffects & CFE_STRIKEOUT)
2636 lf.lfStrikeOut = TRUE;
2637 else
2638 lf.lfStrikeOut = FALSE;
2639
2640 if (cf.dwEffects & CFE_UNDERLINE)
2641 lf.lfUnderline = TRUE;
2642 else
2643 lf.lfUnderline = FALSE;
2644
2645 if (cf.dwEffects & CFE_BOLD)
2646 lf.lfWeight = FW_BOLD;
2647 else
2648 lf.lfWeight = FW_NORMAL;
2649
2650 wxFont font = wxCreateFontFromLogFont(& lf);
2651 if (font.Ok())
2652 {
2653 style.SetFont(font);
2654 }
2655 style.SetTextColour(wxColour(cf.crTextColor));
2656
2657 #if wxUSE_RICHEDIT2
2658 if ( m_verRichEdit != 1 )
2659 {
2660 // cf.dwMask |= CFM_BACKCOLOR;
2661 style.SetBackgroundColour(wxColour(cf.crBackColor));
2662 }
2663 #endif // wxUSE_RICHEDIT2
2664
2665 // now get the paragraph formatting
2666 PARAFORMAT2 pf;
2667 wxZeroMemory(pf);
2668 // we can't use PARAFORMAT2 with RichEdit 1.0, so pretend it is a simple
2669 // PARAFORMAT in that case
2670 #if wxUSE_RICHEDIT2
2671 if ( m_verRichEdit == 1 )
2672 {
2673 // this is the only thing the control is going to grok
2674 pf.cbSize = sizeof(PARAFORMAT);
2675 }
2676 else
2677 #endif
2678 {
2679 // PARAFORMAT or PARAFORMAT2
2680 pf.cbSize = sizeof(pf);
2681 }
2682
2683 // do format the selection
2684 (void) ::SendMessage(GetHwnd(), EM_GETPARAFORMAT, 0, (LPARAM) &pf) ;
2685
2686 style.SetLeftIndent( (int) ((double) pf.dxStartIndent * twips2mm * 10.0), (int) ((double) pf.dxOffset * twips2mm * 10.0) );
2687 style.SetRightIndent( (int) ((double) pf.dxRightIndent * twips2mm * 10.0) );
2688
2689 if (pf.wAlignment == PFA_CENTER)
2690 style.SetAlignment(wxTEXT_ALIGNMENT_CENTRE);
2691 else if (pf.wAlignment == PFA_RIGHT)
2692 style.SetAlignment(wxTEXT_ALIGNMENT_RIGHT);
2693 else if (pf.wAlignment == PFA_JUSTIFY)
2694 style.SetAlignment(wxTEXT_ALIGNMENT_JUSTIFIED);
2695 else
2696 style.SetAlignment(wxTEXT_ALIGNMENT_LEFT);
2697
2698 wxArrayInt tabStops;
2699 size_t i;
2700 for (i = 0; i < (size_t) pf.cTabCount; i++)
2701 {
2702 tabStops.Add( (int) ((double) (pf.rgxTabs[i] & 0xFFFF) * twips2mm * 10.0) );
2703 }
2704
2705 if ( changeSel )
2706 {
2707 // restore the original selection
2708 DoSetSelection(startOld, endOld, SetSel_NoScroll);
2709 }
2710
2711 return true;
2712 }
2713
2714 // ----------------------------------------------------------------------------
2715 // wxRichEditModule
2716 // ----------------------------------------------------------------------------
2717
2718 static const HINSTANCE INVALID_HINSTANCE = (HINSTANCE)-1;
2719
2720 bool wxRichEditModule::OnInit()
2721 {
2722 // don't do anything - we will load it when needed
2723 return true;
2724 }
2725
2726 void wxRichEditModule::OnExit()
2727 {
2728 for ( size_t i = 0; i < WXSIZEOF(ms_hRichEdit); i++ )
2729 {
2730 if ( ms_hRichEdit[i] && ms_hRichEdit[i] != INVALID_HINSTANCE )
2731 {
2732 ::FreeLibrary(ms_hRichEdit[i]);
2733 ms_hRichEdit[i] = NULL;
2734 }
2735 }
2736 #if wxUSE_INKEDIT
2737 if (ms_inkEditLib.IsLoaded())
2738 ms_inkEditLib.Unload();
2739 #endif
2740 }
2741
2742 /* static */
2743 bool wxRichEditModule::Load(Version version)
2744 {
2745 if ( ms_hRichEdit[version] == INVALID_HINSTANCE )
2746 {
2747 // we had already tried to load it and failed
2748 return false;
2749 }
2750
2751 if ( ms_hRichEdit[version] )
2752 {
2753 // we've already got this one
2754 return true;
2755 }
2756
2757 static const wxChar *dllnames[] =
2758 {
2759 _T("riched32"),
2760 _T("riched20"),
2761 _T("msftedit"),
2762 };
2763
2764 wxCOMPILE_TIME_ASSERT( WXSIZEOF(dllnames) == Version_Max,
2765 RichEditDllNamesVersionsMismatch );
2766
2767 ms_hRichEdit[version] = ::LoadLibrary(dllnames[version]);
2768
2769 if ( !ms_hRichEdit[version] )
2770 {
2771 ms_hRichEdit[version] = INVALID_HINSTANCE;
2772
2773 return false;
2774 }
2775
2776 return true;
2777 }
2778
2779 #if wxUSE_INKEDIT
2780 // load the InkEdit library
2781 bool wxRichEditModule::LoadInkEdit()
2782 {
2783 static wxDynamicLibrary ms_inkEditLib;
2784 static bool ms_inkEditLibLoadAttemped;
2785 if (ms_inkEditLibLoadAttemped)
2786 ms_inkEditLib.IsLoaded();
2787
2788 ms_inkEditLibLoadAttemped = true;
2789
2790 wxLogNull logNull;
2791 return ms_inkEditLib.Load(wxT("inked"));
2792 }
2793 #endif // wxUSE_INKEDIT
2794
2795
2796 #endif // wxUSE_RICHEDIT
2797
2798 #endif // wxUSE_TEXTCTRL && !(__SMARTPHONE__ && __WXWINCE__)