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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: textctrl.cpp | |
3 | // Purpose: wxTextCtrl | |
4 | // Author: David Webster | |
5 | // Modified by: | |
6 | // Created: 10/17/99 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) David Webster | |
9 | // Licence: wxWindows licence | |
10 | ///////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | // ---------------------------------------------------------------------------- | |
13 | // headers | |
14 | // ---------------------------------------------------------------------------- | |
15 | ||
16 | // For compilers that support precompilation, includes "wx.h". | |
17 | #include "wx/wxprec.h" | |
18 | ||
19 | #ifndef WX_PRECOMP | |
20 | #include "wx/textctrl.h" | |
21 | #include "wx/settings.h" | |
22 | #include "wx/brush.h" | |
23 | #include "wx/utils.h" | |
24 | #include "wx/log.h" | |
25 | #endif | |
26 | ||
27 | #if wxUSE_CLIPBOARD | |
28 | #include "wx/app.h" | |
29 | #include "wx/clipbrd.h" | |
30 | #endif | |
31 | ||
32 | #include "wx/textfile.h" | |
33 | ||
34 | #include "wx/os2/private.h" | |
35 | ||
36 | #include <string.h> | |
37 | #include <stdlib.h> | |
38 | #include <sys/types.h> | |
39 | ||
40 | #if wxUSE_IOSTREAMH | |
41 | # include <fstream.h> | |
42 | #else | |
43 | # include <fstream> | |
44 | #endif | |
45 | ||
46 | ||
47 | // ---------------------------------------------------------------------------- | |
48 | // event tables and other macros | |
49 | // ---------------------------------------------------------------------------- | |
50 | ||
51 | IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl, wxControl) | |
52 | ||
53 | BEGIN_EVENT_TABLE(wxTextCtrl, wxControl) | |
54 | EVT_CHAR(wxTextCtrl::OnChar) | |
55 | EVT_DROP_FILES(wxTextCtrl::OnDropFiles) | |
56 | ||
57 | EVT_MENU(wxID_CUT, wxTextCtrl::OnCut) | |
58 | EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy) | |
59 | EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste) | |
60 | EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo) | |
61 | EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo) | |
62 | ||
63 | EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut) | |
64 | EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy) | |
65 | EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste) | |
66 | EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo) | |
67 | EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo) | |
68 | END_EVENT_TABLE() | |
69 | ||
70 | ||
71 | // ============================================================================ | |
72 | // implementation | |
73 | // ============================================================================ | |
74 | ||
75 | // ---------------------------------------------------------------------------- | |
76 | // creation | |
77 | // ---------------------------------------------------------------------------- | |
78 | ||
79 | wxTextCtrl::wxTextCtrl() | |
80 | { | |
81 | } | |
82 | ||
83 | bool wxTextCtrl::Create(wxWindow *parent, wxWindowID id, | |
84 | const wxString& value, | |
85 | const wxPoint& pos, | |
86 | const wxSize& size, | |
87 | long style, | |
88 | #if wxUSE_VALIDATORS | |
89 | const wxValidator& validator, | |
90 | #endif | |
91 | const wxString& name) | |
92 | { | |
93 | // base initialization | |
94 | if ( !CreateBase(parent, id, pos, size, style, validator, name) ) | |
95 | return FALSE; | |
96 | ||
97 | // Validator was set in CreateBase | |
98 | //SetValidator(validator); | |
99 | if ( parent ) | |
100 | parent->AddChild(this); | |
101 | ||
102 | // set colours | |
103 | SetupColours(); | |
104 | ||
105 | // translate wxWin style flags to MSW ones, checking for consistency while | |
106 | // doing it | |
107 | // TODO: | |
108 | /* | |
109 | long msStyle = ES_LEFT | WS_VISIBLE | WS_CHILD | WS_TABSTOP; | |
110 | if ( m_windowStyle & wxTE_MULTILINE ) | |
111 | { | |
112 | wxASSERT_MSG( !(m_windowStyle & wxTE_PROCESS_ENTER), | |
113 | wxT("wxTE_PROCESS_ENTER style is ignored for multiline " | |
114 | "text controls (they always process it)") ); | |
115 | ||
116 | msStyle |= ES_MULTILINE | ES_WANTRETURN; | |
117 | if ((m_windowStyle & wxTE_NO_VSCROLL) == 0) | |
118 | msStyle |= WS_VSCROLL; | |
119 | m_windowStyle |= wxTE_PROCESS_ENTER; | |
120 | } | |
121 | else | |
122 | msStyle |= ES_AUTOHSCROLL; | |
123 | ||
124 | if (m_windowStyle & wxHSCROLL) | |
125 | msStyle |= (WS_HSCROLL | ES_AUTOHSCROLL); | |
126 | ||
127 | if (m_windowStyle & wxTE_READONLY) | |
128 | msStyle |= ES_READONLY; | |
129 | ||
130 | if (m_windowStyle & wxHSCROLL) | |
131 | msStyle |= (WS_HSCROLL | ES_AUTOHSCROLL); | |
132 | if (m_windowStyle & wxTE_PASSWORD) // hidden input | |
133 | msStyle |= ES_PASSWORD; | |
134 | ||
135 | // we always want the characters and the arrows | |
136 | m_lDlgCode = DLGC_WANTCHARS | DLGC_WANTARROWS; | |
137 | ||
138 | // we may have several different cases: | |
139 | // 1. normal case: both TAB and ENTER are used for dialog navigation | |
140 | // 2. ctrl which wants TAB for itself: ENTER is used to pass to the next | |
141 | // control in the dialog | |
142 | // 3. ctrl which wants ENTER for itself: TAB is used for dialog navigation | |
143 | // 4. ctrl which wants both TAB and ENTER: Ctrl-ENTER is used to pass to | |
144 | // the next control | |
145 | if ( m_windowStyle & wxTE_PROCESS_ENTER ) | |
146 | m_lDlgCode |= DLGC_WANTMESSAGE; | |
147 | if ( m_windowStyle & wxTE_PROCESS_TAB ) | |
148 | m_lDlgCode |= DLGC_WANTTAB; | |
149 | ||
150 | // do create the control - either an EDIT or RICHEDIT | |
151 | const wxChar *windowClass = wxT("EDIT"); | |
152 | ||
153 | bool want3D; | |
154 | WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D); | |
155 | ||
156 | // Even with extended styles, need to combine with WS_BORDER for them to | |
157 | // look right. | |
158 | if ( want3D || wxStyleHasBorder(m_windowStyle) ) | |
159 | msStyle |= WS_BORDER; | |
160 | ||
161 | // NB: don't use pos and size as CreateWindowEx arguments because they | |
162 | // might be -1 in which case we should use the default values (and | |
163 | // SetSize called below takes care of it) | |
164 | m_hWnd = (WXHWND)::CreateWindowEx(exStyle, | |
165 | windowClass, | |
166 | NULL, | |
167 | msStyle, | |
168 | 0, 0, 0, 0, | |
169 | GetHwndOf(parent), | |
170 | (HMENU)m_windowId, | |
171 | wxGetInstance(), | |
172 | NULL); | |
173 | ||
174 | wxCHECK_MSG( m_hWnd, FALSE, wxT("Failed to create text ctrl") ); | |
175 | */ | |
176 | SubclassWin(GetHWND()); | |
177 | ||
178 | // set font, position, size and initial value | |
179 | wxFont& fontParent = parent->GetFont(); | |
180 | if ( fontParent.Ok() ) | |
181 | { | |
182 | SetFont(fontParent); | |
183 | } | |
184 | else | |
185 | { | |
186 | SetFont(wxSystemSettings::GetSystemFont(wxSYS_SYSTEM_FONT)); | |
187 | } | |
188 | ||
189 | SetSize(pos.x, pos.y, size.x, size.y); | |
190 | ||
191 | return TRUE; | |
192 | } | |
193 | ||
194 | // Make sure the window style (etc.) reflects the HWND style (roughly) | |
195 | void wxTextCtrl::AdoptAttributesFromHWND() | |
196 | { | |
197 | wxWindow::AdoptAttributesFromHWND(); | |
198 | ||
199 | HWND hWnd = GetHwnd(); | |
200 | // TODO: | |
201 | /* | |
202 | long style = GetWindowLong(hWnd, GWL_STYLE); | |
203 | ||
204 | if (style & ES_MULTILINE) | |
205 | m_windowStyle |= wxTE_MULTILINE; | |
206 | if (style & ES_PASSWORD) | |
207 | m_windowStyle |= wxTE_PASSWORD; | |
208 | if (style & ES_READONLY) | |
209 | m_windowStyle |= wxTE_READONLY; | |
210 | if (style & ES_WANTRETURN) | |
211 | m_windowStyle |= wxTE_PROCESS_ENTER; | |
212 | */ | |
213 | } | |
214 | ||
215 | void wxTextCtrl::SetupColours() | |
216 | { | |
217 | // FIXME why is bg colour not inherited from parent? | |
218 | SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW)); | |
219 | SetForegroundColour(GetParent()->GetForegroundColour()); | |
220 | } | |
221 | ||
222 | // ---------------------------------------------------------------------------- | |
223 | // set/get the controls text | |
224 | // ---------------------------------------------------------------------------- | |
225 | ||
226 | wxString wxTextCtrl::GetValue() const | |
227 | { | |
228 | return wxGetWindowText(GetHWND()); | |
229 | } | |
230 | ||
231 | void wxTextCtrl::SetValue(const wxString& value) | |
232 | { | |
233 | // TODO: | |
234 | /* | |
235 | wxString valueDos = wxTextFile::Translate(value, wxTextFileType_Dos); | |
236 | ||
237 | SetWindowText(GetHwnd(), valueDos); | |
238 | ||
239 | AdjustSpaceLimit(); | |
240 | */ | |
241 | } | |
242 | ||
243 | void wxTextCtrl::WriteText(const wxString& value) | |
244 | { | |
245 | // TODO: | |
246 | /* | |
247 | wxString valueDos = wxTextFile::Translate(value, wxTextFileType_Dos); | |
248 | ||
249 | SendMessage(GetHwnd(), EM_REPLACESEL, 0, (LPARAM)valueDos.c_str()); | |
250 | ||
251 | AdjustSpaceLimit(); | |
252 | */ | |
253 | } | |
254 | ||
255 | void wxTextCtrl::AppendText(const wxString& text) | |
256 | { | |
257 | // TODO: | |
258 | /* | |
259 | SetInsertionPointEnd(); | |
260 | WriteText(text); | |
261 | */ | |
262 | } | |
263 | ||
264 | void wxTextCtrl::Clear() | |
265 | { | |
266 | // SetWindowText(GetHwnd(), wxT("")); | |
267 | } | |
268 | ||
269 | // ---------------------------------------------------------------------------- | |
270 | // Clipboard operations | |
271 | // ---------------------------------------------------------------------------- | |
272 | ||
273 | void wxTextCtrl::Copy() | |
274 | { | |
275 | if (CanCopy()) | |
276 | { | |
277 | HWND hWnd = GetHwnd(); | |
278 | // SendMessage(hWnd, WM_COPY, 0, 0L); | |
279 | } | |
280 | } | |
281 | ||
282 | void wxTextCtrl::Cut() | |
283 | { | |
284 | if (CanCut()) | |
285 | { | |
286 | HWND hWnd = GetHwnd(); | |
287 | // SendMessage(hWnd, WM_CUT, 0, 0L); | |
288 | } | |
289 | } | |
290 | ||
291 | void wxTextCtrl::Paste() | |
292 | { | |
293 | if (CanPaste()) | |
294 | { | |
295 | HWND hWnd = GetHwnd(); | |
296 | // SendMessage(hWnd, WM_PASTE, 0, 0L); | |
297 | } | |
298 | } | |
299 | ||
300 | bool wxTextCtrl::CanCopy() const | |
301 | { | |
302 | // Can copy if there's a selection | |
303 | long from = 0L; | |
304 | long to = 0L; | |
305 | // GetSelection(& from, & to); | |
306 | return (from != to); | |
307 | } | |
308 | ||
309 | bool wxTextCtrl::CanCut() const | |
310 | { | |
311 | // Can cut if there's a selection | |
312 | long from = 0L; | |
313 | long to = 0L; | |
314 | // GetSelection(& from, & to); | |
315 | return (from != to); | |
316 | } | |
317 | ||
318 | bool wxTextCtrl::CanPaste() const | |
319 | { | |
320 | if (!IsEditable()) | |
321 | return FALSE; | |
322 | ||
323 | // Standard edit control: check for straight text on clipboard | |
324 | bool isTextAvailable = FALSE; | |
325 | //TODO: | |
326 | /* | |
327 | if ( ::OpenClipboard(GetHwndOf(wxTheApp->GetTopWindow())) ) | |
328 | { | |
329 | isTextAvailable = (::IsClipboardFormatAvailable(CF_TEXT) != 0); | |
330 | ::CloseClipboard(); | |
331 | } | |
332 | */ | |
333 | return isTextAvailable; | |
334 | } | |
335 | ||
336 | // ---------------------------------------------------------------------------- | |
337 | // Accessors | |
338 | // ---------------------------------------------------------------------------- | |
339 | ||
340 | void wxTextCtrl::SetEditable(bool editable) | |
341 | { | |
342 | HWND hWnd = GetHwnd(); | |
343 | // SendMessage(hWnd, EM_SETREADONLY, (WPARAM)!editable, (LPARAM)0L); | |
344 | } | |
345 | ||
346 | void wxTextCtrl::SetInsertionPoint(long pos) | |
347 | { | |
348 | // TODO: | |
349 | /* | |
350 | HWND hWnd = GetHwnd(); | |
351 | { | |
352 | SendMessage(hWnd, EM_SETSEL, pos, pos); | |
353 | SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0); | |
354 | } | |
355 | static const char *nothing = ""; | |
356 | SendMessage(hWnd, EM_REPLACESEL, 0, (LPARAM)nothing); | |
357 | */ | |
358 | } | |
359 | ||
360 | void wxTextCtrl::SetInsertionPointEnd() | |
361 | { | |
362 | // TODO: | |
363 | /* | |
364 | long pos = GetLastPosition(); | |
365 | SetInsertionPoint(pos); | |
366 | */ | |
367 | } | |
368 | ||
369 | long wxTextCtrl::GetInsertionPoint() const | |
370 | { | |
371 | // TODO: | |
372 | /* | |
373 | DWORD Pos = (DWORD)SendMessage(GetHwnd(), EM_GETSEL, 0, 0L); | |
374 | return Pos & 0xFFFF; | |
375 | */ | |
376 | return 0; | |
377 | } | |
378 | ||
379 | long wxTextCtrl::GetLastPosition() const | |
380 | { | |
381 | HWND hWnd = GetHwnd(); | |
382 | ||
383 | // TODO: | |
384 | /* | |
385 | // Will always return a number > 0 (according to docs) | |
386 | int noLines = (int)SendMessage(hWnd, EM_GETLINECOUNT, (WPARAM)0, (LPARAM)0L); | |
387 | ||
388 | // This gets the char index for the _beginning_ of the last line | |
389 | int charIndex = (int)SendMessage(hWnd, EM_LINEINDEX, (WPARAM)(noLines-1), (LPARAM)0L); | |
390 | ||
391 | // Get number of characters in the last line. We'll add this to the character | |
392 | // index for the last line, 1st position. | |
393 | int lineLength = (int)SendMessage(hWnd, EM_LINELENGTH, (WPARAM)charIndex, (LPARAM)0L); | |
394 | ||
395 | return (long)(charIndex + lineLength); | |
396 | */ | |
397 | return 0L; | |
398 | } | |
399 | ||
400 | // If the return values from and to are the same, there is no | |
401 | // selection. | |
402 | void wxTextCtrl::GetSelection(long* from, long* to) const | |
403 | { | |
404 | DWORD dwStart, dwEnd; | |
405 | MPARAM wParam = (MPARAM) (DWORD*) & dwStart; // receives starting position | |
406 | MPARAM lParam = (MPARAM) (DWORD*) & dwEnd; // receives ending position | |
407 | ||
408 | // ::SendMessage(GetHwnd(), EM_GETSEL, wParam, lParam); | |
409 | ||
410 | *from = dwStart; | |
411 | *to = dwEnd; | |
412 | } | |
413 | ||
414 | bool wxTextCtrl::IsEditable() const | |
415 | { | |
416 | // TODO: | |
417 | /* | |
418 | long style = ::GetWindowLong(GetHwnd(), GWL_STYLE); | |
419 | ||
420 | return ((style & ES_READONLY) == 0); | |
421 | */ | |
422 | return FALSE; | |
423 | } | |
424 | ||
425 | // ---------------------------------------------------------------------------- | |
426 | // Editing | |
427 | // ---------------------------------------------------------------------------- | |
428 | ||
429 | void wxTextCtrl::Replace(long from, long to, const wxString& value) | |
430 | { | |
431 | #if wxUSE_CLIPBOARD | |
432 | HWND hWnd = GetHwnd(); | |
433 | long fromChar = from; | |
434 | long toChar = to; | |
435 | ||
436 | // Set selection and remove it | |
437 | // SendMessage(hWnd, EM_SETSEL, fromChar, toChar); | |
438 | // SendMessage(hWnd, WM_CUT, (WPARAM)0, (LPARAM)0); | |
439 | ||
440 | // Now replace with 'value', by pasting. | |
441 | wxSetClipboardData(wxDF_TEXT, (wxObject *) (const wxChar *)value, 0, 0); | |
442 | ||
443 | // Paste into edit control | |
444 | // SendMessage(hWnd, WM_PASTE, (WPARAM)0, (LPARAM)0L); | |
445 | #else | |
446 | wxFAIL_MSG("wxTextCtrl::Replace not implemented if wxUSE_CLIPBOARD is 0."); | |
447 | #endif | |
448 | } | |
449 | ||
450 | void wxTextCtrl::Remove(long from, long to) | |
451 | { | |
452 | HWND hWnd = GetHwnd(); | |
453 | long fromChar = from; | |
454 | long toChar = to; | |
455 | ||
456 | // Cut all selected text | |
457 | // SendMessage(hWnd, EM_SETSEL, fromChar, toChar); | |
458 | // SendMessage(hWnd, WM_CUT, (WPARAM)0, (LPARAM)0); | |
459 | } | |
460 | ||
461 | void wxTextCtrl::SetSelection(long from, long to) | |
462 | { | |
463 | HWND hWnd = GetHwnd(); | |
464 | long fromChar = from; | |
465 | long toChar = to; | |
466 | ||
467 | // if from and to are both -1, it means (in wxWindows) that all text should | |
468 | // be selected. Translate into Windows convention | |
469 | if ((from == -1) && (to == -1)) | |
470 | { | |
471 | fromChar = 0; | |
472 | toChar = -1; | |
473 | } | |
474 | ||
475 | // SendMessage(hWnd, EM_SETSEL, (WPARAM)fromChar, (LPARAM)toChar); | |
476 | // SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0); | |
477 | } | |
478 | ||
479 | bool wxTextCtrl::LoadFile(const wxString& file) | |
480 | { | |
481 | // TODO: | |
482 | /* | |
483 | if ( wxTextCtrlBase::LoadFile(file) ) | |
484 | { | |
485 | // update the size limit if needed | |
486 | AdjustSpaceLimit(); | |
487 | ||
488 | return TRUE; | |
489 | } | |
490 | */ | |
491 | return FALSE; | |
492 | } | |
493 | ||
494 | bool wxTextCtrl::IsModified() const | |
495 | { | |
496 | // return (SendMessage(GetHwnd(), EM_GETMODIFY, 0, 0) != 0); | |
497 | return FALSE; | |
498 | } | |
499 | ||
500 | // Makes 'unmodified' | |
501 | void wxTextCtrl::DiscardEdits() | |
502 | { | |
503 | // SendMessage(GetHwnd(), EM_SETMODIFY, FALSE, 0L); | |
504 | } | |
505 | ||
506 | int wxTextCtrl::GetNumberOfLines() const | |
507 | { | |
508 | // return (int)SendMessage(GetHwnd(), EM_GETLINECOUNT, (WPARAM)0, (LPARAM)0); | |
509 | return 0; | |
510 | } | |
511 | ||
512 | long wxTextCtrl::XYToPosition(long x, long y) const | |
513 | { | |
514 | HWND hWnd = GetHwnd(); | |
515 | ||
516 | // This gets the char index for the _beginning_ of this line | |
517 | // TODO: | |
518 | /* | |
519 | int charIndex = (int)SendMessage(hWnd, EM_LINEINDEX, (WPARAM)y, (LPARAM)0); | |
520 | return (long)(x + charIndex); | |
521 | */ | |
522 | return 0L; | |
523 | } | |
524 | ||
525 | bool wxTextCtrl::PositionToXY(long pos, long *x, long *y) const | |
526 | { | |
527 | HWND hWnd = GetHwnd(); | |
528 | ||
529 | // This gets the line number containing the character | |
530 | int lineNo = -1; | |
531 | // lineNo = (int)SendMessage(hWnd, EM_LINEFROMCHAR, (WPARAM)pos, 0); | |
532 | ||
533 | if ( lineNo == -1 ) | |
534 | { | |
535 | // no such line | |
536 | return FALSE; | |
537 | } | |
538 | ||
539 | // This gets the char index for the _beginning_ of this line | |
540 | int charIndex = 0; // TODO: (int)SendMessage(hWnd, EM_LINEINDEX, (WPARAM)lineNo, (LPARAM)0); | |
541 | if ( charIndex == -1 ) | |
542 | { | |
543 | return FALSE; | |
544 | } | |
545 | ||
546 | // The X position must therefore be the different between pos and charIndex | |
547 | if ( x ) | |
548 | *x = (long)(pos - charIndex); | |
549 | if ( y ) | |
550 | *y = (long)lineNo; | |
551 | ||
552 | return TRUE; | |
553 | } | |
554 | ||
555 | void wxTextCtrl::ShowPosition(long pos) | |
556 | { | |
557 | HWND hWnd = GetHwnd(); | |
558 | ||
559 | // To scroll to a position, we pass the number of lines and characters | |
560 | // to scroll *by*. This means that we need to: | |
561 | // (1) Find the line position of the current line. | |
562 | // (2) Find the line position of pos. | |
563 | // (3) Scroll by (pos - current). | |
564 | // For now, ignore the horizontal scrolling. | |
565 | ||
566 | // Is this where scrolling is relative to - the line containing the caret? | |
567 | // Or is the first visible line??? Try first visible line. | |
568 | // int currentLineLineNo1 = (int)SendMessage(hWnd, EM_LINEFROMCHAR, (WPARAM)-1, (LPARAM)0L); | |
569 | ||
570 | // TODO: | |
571 | /* | |
572 | int currentLineLineNo = (int)SendMessage(hWnd, EM_GETFIRSTVISIBLELINE, (WPARAM)0, (LPARAM)0L); | |
573 | ||
574 | int specifiedLineLineNo = (int)SendMessage(hWnd, EM_LINEFROMCHAR, (WPARAM)pos, (LPARAM)0L); | |
575 | ||
576 | int linesToScroll = specifiedLineLineNo - currentLineLineNo; | |
577 | ||
578 | if (linesToScroll != 0) | |
579 | (void)SendMessage(hWnd, EM_LINESCROLL, (WPARAM)0, (LPARAM)linesToScroll); | |
580 | */ | |
581 | } | |
582 | ||
583 | int wxTextCtrl::GetLineLength(long lineNo) const | |
584 | { | |
585 | // TODO: | |
586 | /* | |
587 | ||
588 | long charIndex = XYToPosition(0, lineNo); | |
589 | int len = (int)SendMessage(GetHwnd(), EM_LINELENGTH, charIndex, 0); | |
590 | return len; | |
591 | */ | |
592 | return 0; | |
593 | } | |
594 | ||
595 | wxString wxTextCtrl::GetLineText(long lineNo) const | |
596 | { | |
597 | size_t len = (size_t)GetLineLength(lineNo) + 1; | |
598 | char *buf = (char *)malloc(len); | |
599 | *(WORD *)buf = len; | |
600 | int noChars = 0; // TODO:(int)SendMessage(GetHwnd(), EM_GETLINE, lineNo, (LPARAM)buf); | |
601 | buf[noChars] = 0; | |
602 | ||
603 | wxString str(buf); | |
604 | ||
605 | free(buf); | |
606 | ||
607 | return str; | |
608 | } | |
609 | ||
610 | // ---------------------------------------------------------------------------- | |
611 | // Undo/redo | |
612 | // ---------------------------------------------------------------------------- | |
613 | ||
614 | void wxTextCtrl::Undo() | |
615 | { | |
616 | if (CanUndo()) | |
617 | { | |
618 | // ::SendMessage(GetHwnd(), EM_UNDO, 0, 0); | |
619 | } | |
620 | } | |
621 | ||
622 | void wxTextCtrl::Redo() | |
623 | { | |
624 | if (CanRedo()) | |
625 | { | |
626 | // Same as Undo, since Undo undoes the undo, i.e. a redo. | |
627 | // ::SendMessage(GetHwnd(), EM_UNDO, 0, 0); | |
628 | } | |
629 | } | |
630 | ||
631 | bool wxTextCtrl::CanUndo() const | |
632 | { | |
633 | // return (::SendMessage(GetHwnd(), EM_CANUNDO, 0, 0) != 0); | |
634 | return FALSE; | |
635 | } | |
636 | ||
637 | bool wxTextCtrl::CanRedo() const | |
638 | { | |
639 | // return (::SendMessage(GetHwnd(), EM_CANUNDO, 0, 0) != 0); | |
640 | return FALSE; | |
641 | } | |
642 | ||
643 | // ---------------------------------------------------------------------------- | |
644 | // implemenation details | |
645 | // ---------------------------------------------------------------------------- | |
646 | ||
647 | void wxTextCtrl::Command(wxCommandEvent & event) | |
648 | { | |
649 | SetValue(event.GetString()); | |
650 | ProcessCommand (event); | |
651 | } | |
652 | ||
653 | void wxTextCtrl::OnDropFiles(wxDropFilesEvent& event) | |
654 | { | |
655 | // By default, load the first file into the text window. | |
656 | if (event.GetNumberOfFiles() > 0) | |
657 | { | |
658 | LoadFile(event.GetFiles()[0]); | |
659 | } | |
660 | } | |
661 | ||
662 | WXHBRUSH wxTextCtrl::OnCtlColor(WXHDC pDC, WXHWND pWnd, WXUINT nCtlColor, | |
663 | WXUINT message, WXWPARAM wParam, | |
664 | WXLPARAM lParam) | |
665 | { | |
666 | HDC hdc = (HDC)pDC; | |
667 | // TODO: | |
668 | /* | |
669 | SetBkMode(hdc, GetParent()->GetTransparentBackground() ? TRANSPARENT | |
670 | : OPAQUE); | |
671 | ||
672 | ::SetBkColor(hdc, RGB(GetBackgroundColour().Red(), GetBackgroundColour().Green(), GetBackgroundColour().Blue())); | |
673 | ::SetTextColor(hdc, RGB(GetForegroundColour().Red(), GetForegroundColour().Green(), GetForegroundColour().Blue())); | |
674 | */ | |
675 | wxBrush *backgroundBrush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID); | |
676 | ||
677 | return (WXHBRUSH) backgroundBrush->GetResourceHandle(); | |
678 | } | |
679 | ||
680 | void wxTextCtrl::OnChar(wxKeyEvent& event) | |
681 | { | |
682 | switch ( event.KeyCode() ) | |
683 | { | |
684 | // TODO: | |
685 | /* | |
686 | case WXK_RETURN: | |
687 | if ( !(m_windowStyle & wxTE_MULTILINE) ) | |
688 | { | |
689 | wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId); | |
690 | event.SetEventObject( this ); | |
691 | if ( GetEventHandler()->ProcessEvent(event) ) | |
692 | return; | |
693 | } | |
694 | //else: multiline controls need Enter for themselves | |
695 | ||
696 | break; | |
697 | ||
698 | case WXK_TAB: | |
699 | // always produce navigation event - even if we process TAB | |
700 | // ourselves the fact that we got here means that the user code | |
701 | // decided to skip processing of this TAB - probably to let it | |
702 | // do its default job. | |
703 | // | |
704 | // NB: Notice that Ctrl-Tab is handled elsewhere and Alt-Tab is | |
705 | // handled by Windows | |
706 | { | |
707 | wxNavigationKeyEvent eventNav; | |
708 | eventNav.SetDirection(!event.ShiftDown()); | |
709 | eventNav.SetWindowChange(FALSE); | |
710 | eventNav.SetEventObject(this); | |
711 | ||
712 | if ( GetEventHandler()->ProcessEvent(eventNav) ) | |
713 | return; | |
714 | } | |
715 | break; | |
716 | */ | |
717 | default: | |
718 | event.Skip(); | |
719 | return; | |
720 | } | |
721 | ||
722 | // don't just call event.Skip() because this will cause TABs and ENTERs | |
723 | // be passed upwards and we don't always want this - instead process it | |
724 | // right here | |
725 | ||
726 | // FIXME | |
727 | event.Skip(); | |
728 | } | |
729 | ||
730 | bool wxTextCtrl::OS2Command(WXUINT param, WXWORD WXUNUSED(id)) | |
731 | { | |
732 | switch (param) | |
733 | { | |
734 | // TODO: | |
735 | /* | |
736 | case EN_SETFOCUS: | |
737 | case EN_KILLFOCUS: | |
738 | { | |
739 | wxFocusEvent event(param == EN_KILLFOCUS ? wxEVT_KILL_FOCUS | |
740 | : wxEVT_SET_FOCUS, | |
741 | m_windowId); | |
742 | event.SetEventObject( this ); | |
743 | GetEventHandler()->ProcessEvent(event); | |
744 | } | |
745 | break; | |
746 | ||
747 | case EN_CHANGE: | |
748 | { | |
749 | wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, m_windowId); | |
750 | wxString val(GetValue()); | |
751 | if ( !val.IsNull() ) | |
752 | event.m_commandString = WXSTRINGCAST val; | |
753 | event.SetEventObject( this ); | |
754 | ProcessCommand(event); | |
755 | } | |
756 | break; | |
757 | ||
758 | case EN_ERRSPACE: | |
759 | // the text size limit has been hit - increase it | |
760 | AdjustSpaceLimit(); | |
761 | break; | |
762 | ||
763 | // the other notification messages are not processed | |
764 | case EN_UPDATE: | |
765 | case EN_MAXTEXT: | |
766 | case EN_HSCROLL: | |
767 | case EN_VSCROLL: | |
768 | */ | |
769 | default: | |
770 | return FALSE; | |
771 | } | |
772 | ||
773 | // processed | |
774 | return TRUE; | |
775 | } | |
776 | ||
777 | void wxTextCtrl::AdjustSpaceLimit() | |
778 | { | |
779 | // TODO: | |
780 | /* | |
781 | unsigned int len = ::GetWindowTextLength(GetHwnd()), | |
782 | limit = ::SendMessage(GetHwnd(), EM_GETLIMITTEXT, 0, 0); | |
783 | if ( len > limit ) | |
784 | { | |
785 | limit = len + 0x8000; // 32Kb | |
786 | ||
787 | if ( limit > 0xffff ) | |
788 | ::SendMessage(GetHwnd(), EM_LIMITTEXT, 0, limit); | |
789 | else | |
790 | ::SendMessage(GetHwnd(), EM_LIMITTEXT, limit, 0); | |
791 | } | |
792 | */ | |
793 | } | |
794 | ||
795 | bool wxTextCtrl::AcceptsFocus() const | |
796 | { | |
797 | // we don't want focus if we can't be edited | |
798 | return IsEditable() && wxControl::AcceptsFocus(); | |
799 | } | |
800 | ||
801 | wxSize wxTextCtrl::DoGetBestSize() const | |
802 | { | |
803 | int cx, cy; | |
804 | wxGetCharSize(GetHWND(), &cx, &cy, (wxFont*)&GetFont()); | |
805 | ||
806 | int wText = DEFAULT_ITEM_WIDTH; | |
807 | ||
808 | int hText = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy); | |
809 | if ( m_windowStyle & wxTE_MULTILINE ) | |
810 | { | |
811 | hText *= wxMin(GetNumberOfLines(), 5); | |
812 | } | |
813 | //else: for single line control everything is ok | |
814 | ||
815 | return wxSize(wText, hText); | |
816 | } | |
817 | ||
818 | // ---------------------------------------------------------------------------- | |
819 | // standard handlers for standard edit menu events | |
820 | // ---------------------------------------------------------------------------- | |
821 | ||
822 | void wxTextCtrl::OnCut(wxCommandEvent& event) | |
823 | { | |
824 | Cut(); | |
825 | } | |
826 | ||
827 | void wxTextCtrl::OnCopy(wxCommandEvent& event) | |
828 | { | |
829 | Copy(); | |
830 | } | |
831 | ||
832 | void wxTextCtrl::OnPaste(wxCommandEvent& event) | |
833 | { | |
834 | Paste(); | |
835 | } | |
836 | ||
837 | void wxTextCtrl::OnUndo(wxCommandEvent& event) | |
838 | { | |
839 | Undo(); | |
840 | } | |
841 | ||
842 | void wxTextCtrl::OnRedo(wxCommandEvent& event) | |
843 | { | |
844 | Redo(); | |
845 | } | |
846 | ||
847 | void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event) | |
848 | { | |
849 | event.Enable( CanCut() ); | |
850 | } | |
851 | ||
852 | void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event) | |
853 | { | |
854 | event.Enable( CanCopy() ); | |
855 | } | |
856 | ||
857 | void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event) | |
858 | { | |
859 | event.Enable( CanPaste() ); | |
860 | } | |
861 | ||
862 | void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event) | |
863 | { | |
864 | event.Enable( CanUndo() ); | |
865 | } | |
866 | ||
867 | void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event) | |
868 | { | |
869 | event.Enable( CanRedo() ); | |
870 | } | |
871 |