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1 | ///////////////////////////////////////////////////////////////////////////// |
2 | // Name: 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 and Markus Holzem | |
c085e333 | 9 | // Licence: wxWindows license |
2bda0e17 KB |
10 | ///////////////////////////////////////////////////////////////////////////// |
11 | ||
a1b82138 VZ |
12 | // ============================================================================ |
13 | // declarations | |
14 | // ============================================================================ | |
15 | ||
2bda0e17 | 16 | #ifdef __GNUG__ |
a1b82138 | 17 | #pragma implementation "textctrl.h" |
2bda0e17 KB |
18 | #endif |
19 | ||
a1b82138 VZ |
20 | // ---------------------------------------------------------------------------- |
21 | // headers | |
22 | // ---------------------------------------------------------------------------- | |
23 | ||
2bda0e17 KB |
24 | // For compilers that support precompilation, includes "wx.h". |
25 | #include "wx/wxprec.h" | |
26 | ||
27 | #ifdef __BORLANDC__ | |
a1b82138 | 28 | #pragma hdrstop |
2bda0e17 KB |
29 | #endif |
30 | ||
31 | #ifndef WX_PRECOMP | |
a1b82138 VZ |
32 | #include "wx/textctrl.h" |
33 | #include "wx/settings.h" | |
34 | #include "wx/brush.h" | |
35 | #include "wx/utils.h" | |
381dd4bf | 36 | #include "wx/intl.h" |
a1b82138 | 37 | #include "wx/log.h" |
381dd4bf | 38 | #include "wx/app.h" |
2bda0e17 KB |
39 | #endif |
40 | ||
47d67540 | 41 | #if wxUSE_CLIPBOARD |
a1b82138 | 42 | #include "wx/clipbrd.h" |
2bda0e17 KB |
43 | #endif |
44 | ||
a1b82138 VZ |
45 | #include "wx/textfile.h" |
46 | ||
47 | #include <windowsx.h> | |
48 | ||
2bda0e17 KB |
49 | #include "wx/msw/private.h" |
50 | ||
a1b82138 | 51 | #include <string.h> |
2bda0e17 | 52 | #include <stdlib.h> |
a1b82138 | 53 | #include <sys/types.h> |
fbc535ff JS |
54 | |
55 | #if wxUSE_IOSTREAMH | |
3f4a0c5b | 56 | # include <fstream.h> |
fbc535ff | 57 | #else |
3f4a0c5b | 58 | # include <fstream> |
fbc535ff | 59 | #endif |
2bda0e17 | 60 | |
c25a510b JS |
61 | // Why oh why did someone remove the tail of this line? Bizarre. |
62 | // It's needed for GNUWIN32 b20, at least. | |
63 | #if wxUSE_RICHEDIT && (!defined(__GNUWIN32__) || defined(wxUSE_NORLANDER_HEADERS)) | |
cd471848 | 64 | #include <richedit.h> |
2bda0e17 KB |
65 | #endif |
66 | ||
e702ff0f | 67 | |
a1b82138 VZ |
68 | // ---------------------------------------------------------------------------- |
69 | // event tables and other macros | |
70 | // ---------------------------------------------------------------------------- | |
71 | ||
2bda0e17 KB |
72 | IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl, wxControl) |
73 | ||
74 | BEGIN_EVENT_TABLE(wxTextCtrl, wxControl) | |
a1b82138 VZ |
75 | EVT_CHAR(wxTextCtrl::OnChar) |
76 | EVT_DROP_FILES(wxTextCtrl::OnDropFiles) | |
77 | ||
78 | EVT_MENU(wxID_CUT, wxTextCtrl::OnCut) | |
79 | EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy) | |
80 | EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste) | |
81 | EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo) | |
82 | EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo) | |
83 | ||
84 | EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut) | |
85 | EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy) | |
86 | EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste) | |
87 | EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo) | |
88 | EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo) | |
2bda0e17 | 89 | END_EVENT_TABLE() |
e702ff0f | 90 | |
2bda0e17 | 91 | |
a1b82138 VZ |
92 | // ============================================================================ |
93 | // implementation | |
94 | // ============================================================================ | |
95 | ||
96 | // ---------------------------------------------------------------------------- | |
97 | // creation | |
98 | // ---------------------------------------------------------------------------- | |
99 | ||
cd471848 | 100 | wxTextCtrl::wxTextCtrl() |
2bda0e17 | 101 | { |
cd471848 | 102 | #if wxUSE_RICHEDIT |
a1b82138 | 103 | m_isRich = FALSE; |
cd471848 | 104 | #endif |
2bda0e17 KB |
105 | } |
106 | ||
debe6624 | 107 | bool wxTextCtrl::Create(wxWindow *parent, wxWindowID id, |
c085e333 VZ |
108 | const wxString& value, |
109 | const wxPoint& pos, | |
a1b82138 VZ |
110 | const wxSize& size, |
111 | long style, | |
c085e333 VZ |
112 | const wxValidator& validator, |
113 | const wxString& name) | |
2bda0e17 | 114 | { |
a1b82138 | 115 | // base initialization |
8d99be5f | 116 | if ( !CreateBase(parent, id, pos, size, style, validator, name) ) |
a1b82138 | 117 | return FALSE; |
2bda0e17 | 118 | |
a1b82138 VZ |
119 | if ( parent ) |
120 | parent->AddChild(this); | |
2bda0e17 | 121 | |
a1b82138 VZ |
122 | // set colours |
123 | SetupColours(); | |
2bda0e17 | 124 | |
a1b82138 VZ |
125 | // translate wxWin style flags to MSW ones, checking for consistency while |
126 | // doing it | |
127 | long msStyle = ES_LEFT | WS_VISIBLE | WS_CHILD | WS_TABSTOP; | |
128 | if ( m_windowStyle & wxTE_MULTILINE ) | |
129 | { | |
130 | wxASSERT_MSG( !(m_windowStyle & wxTE_PROCESS_ENTER), | |
223d09f6 | 131 | wxT("wxTE_PROCESS_ENTER style is ignored for multiline " |
0d0512bd | 132 | "text controls (they always process it)") ); |
5fb9fcfc | 133 | |
b70ababc JS |
134 | msStyle |= ES_MULTILINE | ES_WANTRETURN; |
135 | if ((m_windowStyle & wxTE_NO_VSCROLL) == 0) | |
136 | msStyle |= WS_VSCROLL; | |
a1b82138 VZ |
137 | m_windowStyle |= wxTE_PROCESS_ENTER; |
138 | } | |
139 | else | |
140 | msStyle |= ES_AUTOHSCROLL; | |
2bda0e17 | 141 | |
2c738dd8 UM |
142 | if (m_windowStyle & wxHSCROLL) |
143 | msStyle |= (WS_HSCROLL | ES_AUTOHSCROLL); | |
144 | ||
a1b82138 VZ |
145 | if (m_windowStyle & wxTE_READONLY) |
146 | msStyle |= ES_READONLY; | |
2bda0e17 | 147 | |
a1b82138 VZ |
148 | if (m_windowStyle & wxHSCROLL) |
149 | msStyle |= (WS_HSCROLL | ES_AUTOHSCROLL); | |
150 | if (m_windowStyle & wxTE_PASSWORD) // hidden input | |
151 | msStyle |= ES_PASSWORD; | |
2bda0e17 | 152 | |
101f488c VZ |
153 | // we always want the characters and the arrows |
154 | m_lDlgCode = DLGC_WANTCHARS | DLGC_WANTARROWS; | |
155 | ||
156 | // we may have several different cases: | |
157 | // 1. normal case: both TAB and ENTER are used for dialog navigation | |
158 | // 2. ctrl which wants TAB for itself: ENTER is used to pass to the next | |
159 | // control in the dialog | |
160 | // 3. ctrl which wants ENTER for itself: TAB is used for dialog navigation | |
161 | // 4. ctrl which wants both TAB and ENTER: Ctrl-ENTER is used to pass to | |
162 | // the next control | |
163 | if ( m_windowStyle & wxTE_PROCESS_ENTER ) | |
164 | m_lDlgCode |= DLGC_WANTMESSAGE; | |
165 | if ( m_windowStyle & wxTE_PROCESS_TAB ) | |
166 | m_lDlgCode |= DLGC_WANTTAB; | |
167 | ||
a1b82138 | 168 | // do create the control - either an EDIT or RICHEDIT |
223d09f6 | 169 | const wxChar *windowClass = wxT("EDIT"); |
cd471848 | 170 | |
57c208c5 | 171 | #if wxUSE_RICHEDIT |
c49245f8 | 172 | if ( m_windowStyle & wxTE_RICH ) |
a1b82138 | 173 | { |
0d0512bd VZ |
174 | static bool s_errorGiven = FALSE; // MT-FIXME |
175 | ||
176 | // only give the error msg once if the DLL can't be loaded | |
177 | if ( !s_errorGiven ) | |
178 | { | |
179 | // first try to load the RichEdit DLL (will do nothing if already | |
180 | // done) | |
181 | if ( !wxTheApp->InitRichEdit() ) | |
182 | { | |
183 | wxLogError(_("Impossible to create a rich edit control, " | |
184 | "using simple text control instead.")); | |
185 | ||
186 | s_errorGiven = TRUE; | |
187 | } | |
188 | } | |
189 | ||
190 | if ( s_errorGiven ) | |
191 | { | |
192 | m_isRich = FALSE; | |
193 | } | |
194 | else | |
195 | { | |
196 | msStyle |= ES_AUTOVSCROLL; | |
197 | m_isRich = TRUE; | |
198 | windowClass = wxT("RICHEDIT"); | |
199 | } | |
a1b82138 VZ |
200 | } |
201 | else | |
202 | m_isRich = FALSE; | |
cd471848 | 203 | #endif |
2bda0e17 | 204 | |
a1b82138 VZ |
205 | bool want3D; |
206 | WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D); | |
2bda0e17 | 207 | |
a1b82138 VZ |
208 | // Even with extended styles, need to combine with WS_BORDER for them to |
209 | // look right. | |
210 | if ( want3D || wxStyleHasBorder(m_windowStyle) ) | |
211 | msStyle |= WS_BORDER; | |
2bda0e17 | 212 | |
a1b82138 VZ |
213 | // NB: don't use pos and size as CreateWindowEx arguments because they |
214 | // might be -1 in which case we should use the default values (and | |
215 | // SetSize called below takes care of it) | |
216 | m_hWnd = (WXHWND)::CreateWindowEx(exStyle, | |
217 | windowClass, | |
218 | NULL, | |
219 | msStyle, | |
220 | 0, 0, 0, 0, | |
221 | GetHwndOf(parent), | |
222 | (HMENU)m_windowId, | |
223 | wxGetInstance(), | |
224 | NULL); | |
2bda0e17 | 225 | |
223d09f6 | 226 | wxCHECK_MSG( m_hWnd, FALSE, wxT("Failed to create text ctrl") ); |
c085e333 | 227 | |
1f112209 | 228 | #if wxUSE_CTL3D |
a1b82138 VZ |
229 | if ( want3D ) |
230 | { | |
231 | Ctl3dSubclassCtl(GetHwnd()); | |
232 | m_useCtl3D = TRUE; | |
233 | } | |
2bda0e17 KB |
234 | #endif |
235 | ||
57c208c5 | 236 | #if wxUSE_RICHEDIT |
a1b82138 VZ |
237 | if (m_isRich) |
238 | { | |
239 | // Have to enable events | |
240 | ::SendMessage(GetHwnd(), EM_SETEVENTMASK, 0, | |
241 | ENM_CHANGE | ENM_DROPFILES | ENM_SELCHANGE | ENM_UPDATE); | |
242 | } | |
2bda0e17 KB |
243 | #endif |
244 | ||
a1b82138 | 245 | SubclassWin(GetHWND()); |
2bda0e17 | 246 | |
a1b82138 VZ |
247 | // set font, position, size and initial value |
248 | wxFont& fontParent = parent->GetFont(); | |
249 | if ( fontParent.Ok() ) | |
250 | { | |
251 | SetFont(fontParent); | |
252 | } | |
253 | else | |
254 | { | |
255 | SetFont(wxSystemSettings::GetSystemFont(wxSYS_SYSTEM_FONT)); | |
256 | } | |
2bda0e17 | 257 | |
a1b82138 | 258 | // Causes a crash for Symantec C++ and WIN32 for some reason |
2bda0e17 | 259 | #if !(defined(__SC__) && defined(__WIN32__)) |
a1b82138 VZ |
260 | if ( !value.IsEmpty() ) |
261 | { | |
262 | SetValue(value); | |
263 | } | |
2bda0e17 KB |
264 | #endif |
265 | ||
a1b82138 VZ |
266 | SetSize(pos.x, pos.y, size.x, size.y); |
267 | ||
268 | return TRUE; | |
2bda0e17 KB |
269 | } |
270 | ||
271 | // Make sure the window style (etc.) reflects the HWND style (roughly) | |
cd471848 | 272 | void wxTextCtrl::AdoptAttributesFromHWND() |
2bda0e17 | 273 | { |
c085e333 | 274 | wxWindow::AdoptAttributesFromHWND(); |
2bda0e17 | 275 | |
789295bf | 276 | HWND hWnd = GetHwnd(); |
a1b82138 | 277 | long style = GetWindowLong(hWnd, GWL_STYLE); |
2bda0e17 | 278 | |
cd471848 VZ |
279 | // retrieve the style to see whether this is an edit or richedit ctrl |
280 | #if wxUSE_RICHEDIT | |
837e5743 | 281 | wxChar buf[256]; |
2bda0e17 | 282 | |
a1b82138 | 283 | GetClassName(hWnd, buf, WXSIZEOF(buf)); |
2bda0e17 | 284 | |
223d09f6 | 285 | if ( wxStricmp(buf, wxT("EDIT")) == 0 ) |
c085e333 VZ |
286 | m_isRich = FALSE; |
287 | else | |
288 | m_isRich = TRUE; | |
a1b82138 | 289 | #endif // wxUSE_RICHEDIT |
c085e333 VZ |
290 | |
291 | if (style & ES_MULTILINE) | |
292 | m_windowStyle |= wxTE_MULTILINE; | |
293 | if (style & ES_PASSWORD) | |
294 | m_windowStyle |= wxTE_PASSWORD; | |
295 | if (style & ES_READONLY) | |
296 | m_windowStyle |= wxTE_READONLY; | |
297 | if (style & ES_WANTRETURN) | |
298 | m_windowStyle |= wxTE_PROCESS_ENTER; | |
2bda0e17 KB |
299 | } |
300 | ||
cd471848 | 301 | void wxTextCtrl::SetupColours() |
2bda0e17 | 302 | { |
a1b82138 VZ |
303 | // FIXME why is bg colour not inherited from parent? |
304 | SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW)); | |
305 | SetForegroundColour(GetParent()->GetForegroundColour()); | |
2bda0e17 KB |
306 | } |
307 | ||
a1b82138 VZ |
308 | // ---------------------------------------------------------------------------- |
309 | // set/get the controls text | |
310 | // ---------------------------------------------------------------------------- | |
311 | ||
cd471848 | 312 | wxString wxTextCtrl::GetValue() const |
2bda0e17 | 313 | { |
789295bf | 314 | return wxGetWindowText(GetHWND()); |
2bda0e17 KB |
315 | } |
316 | ||
317 | void wxTextCtrl::SetValue(const wxString& value) | |
318 | { | |
a1b82138 | 319 | wxString valueDos = wxTextFile::Translate(value, wxTextFileType_Dos); |
789295bf | 320 | |
07cf98cb VZ |
321 | if ( valueDos != GetValue() ) |
322 | { | |
323 | SetWindowText(GetHwnd(), valueDos); | |
a1b82138 | 324 | |
07cf98cb VZ |
325 | AdjustSpaceLimit(); |
326 | } | |
2bda0e17 KB |
327 | } |
328 | ||
a1b82138 | 329 | void wxTextCtrl::WriteText(const wxString& value) |
2bda0e17 | 330 | { |
a1b82138 | 331 | wxString valueDos = wxTextFile::Translate(value, wxTextFileType_Dos); |
2bda0e17 | 332 | |
a1b82138 | 333 | SendMessage(GetHwnd(), EM_REPLACESEL, 0, (LPARAM)valueDos.c_str()); |
2bda0e17 | 334 | |
a1b82138 | 335 | AdjustSpaceLimit(); |
2bda0e17 KB |
336 | } |
337 | ||
a1b82138 VZ |
338 | void wxTextCtrl::AppendText(const wxString& text) |
339 | { | |
340 | SetInsertionPointEnd(); | |
341 | WriteText(text); | |
342 | } | |
343 | ||
344 | void wxTextCtrl::Clear() | |
345 | { | |
223d09f6 | 346 | SetWindowText(GetHwnd(), wxT("")); |
a1b82138 VZ |
347 | } |
348 | ||
349 | // ---------------------------------------------------------------------------- | |
2bda0e17 | 350 | // Clipboard operations |
a1b82138 VZ |
351 | // ---------------------------------------------------------------------------- |
352 | ||
cd471848 | 353 | void wxTextCtrl::Copy() |
2bda0e17 | 354 | { |
e702ff0f JS |
355 | if (CanCopy()) |
356 | { | |
789295bf | 357 | HWND hWnd = GetHwnd(); |
e702ff0f JS |
358 | SendMessage(hWnd, WM_COPY, 0, 0L); |
359 | } | |
2bda0e17 KB |
360 | } |
361 | ||
cd471848 | 362 | void wxTextCtrl::Cut() |
2bda0e17 | 363 | { |
e702ff0f JS |
364 | if (CanCut()) |
365 | { | |
789295bf | 366 | HWND hWnd = GetHwnd(); |
e702ff0f JS |
367 | SendMessage(hWnd, WM_CUT, 0, 0L); |
368 | } | |
2bda0e17 KB |
369 | } |
370 | ||
cd471848 | 371 | void wxTextCtrl::Paste() |
2bda0e17 | 372 | { |
e702ff0f JS |
373 | if (CanPaste()) |
374 | { | |
789295bf | 375 | HWND hWnd = GetHwnd(); |
e702ff0f JS |
376 | SendMessage(hWnd, WM_PASTE, 0, 0L); |
377 | } | |
2bda0e17 KB |
378 | } |
379 | ||
a1b82138 VZ |
380 | bool wxTextCtrl::CanCopy() const |
381 | { | |
382 | // Can copy if there's a selection | |
383 | long from, to; | |
384 | GetSelection(& from, & to); | |
385 | return (from != to); | |
386 | } | |
387 | ||
388 | bool wxTextCtrl::CanCut() const | |
389 | { | |
390 | // Can cut if there's a selection | |
391 | long from, to; | |
392 | GetSelection(& from, & to); | |
393 | return (from != to); | |
394 | } | |
395 | ||
396 | bool wxTextCtrl::CanPaste() const | |
397 | { | |
398 | #if wxUSE_RICHEDIT | |
399 | if (m_isRich) | |
400 | { | |
401 | int dataFormat = 0; // 0 == any format | |
402 | return (::SendMessage( GetHwnd(), EM_CANPASTE, (WPARAM) (UINT) dataFormat, 0) != 0); | |
403 | } | |
404 | #endif | |
405 | if (!IsEditable()) | |
406 | return FALSE; | |
407 | ||
408 | // Standard edit control: check for straight text on clipboard | |
409 | bool isTextAvailable = FALSE; | |
410 | if ( ::OpenClipboard(GetHwndOf(wxTheApp->GetTopWindow())) ) | |
411 | { | |
412 | isTextAvailable = (::IsClipboardFormatAvailable(CF_TEXT) != 0); | |
413 | ::CloseClipboard(); | |
414 | } | |
415 | ||
416 | return isTextAvailable; | |
417 | } | |
418 | ||
419 | // ---------------------------------------------------------------------------- | |
420 | // Accessors | |
421 | // ---------------------------------------------------------------------------- | |
422 | ||
debe6624 | 423 | void wxTextCtrl::SetEditable(bool editable) |
2bda0e17 | 424 | { |
a1b82138 VZ |
425 | HWND hWnd = GetHwnd(); |
426 | SendMessage(hWnd, EM_SETREADONLY, (WPARAM)!editable, (LPARAM)0L); | |
2bda0e17 KB |
427 | } |
428 | ||
debe6624 | 429 | void wxTextCtrl::SetInsertionPoint(long pos) |
2bda0e17 | 430 | { |
a1b82138 | 431 | HWND hWnd = GetHwnd(); |
2bda0e17 | 432 | #ifdef __WIN32__ |
57c208c5 | 433 | #if wxUSE_RICHEDIT |
a1b82138 VZ |
434 | if ( m_isRich) |
435 | { | |
436 | CHARRANGE range; | |
437 | range.cpMin = pos; | |
438 | range.cpMax = pos; | |
439 | SendMessage(hWnd, EM_EXSETSEL, 0, (LPARAM) &range); | |
440 | SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0); | |
441 | } | |
442 | else | |
443 | #endif // wxUSE_RICHEDIT | |
444 | { | |
445 | SendMessage(hWnd, EM_SETSEL, pos, pos); | |
446 | SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0); | |
447 | } | |
448 | #else // Win16 | |
449 | SendMessage(hWnd, EM_SETSEL, 0, MAKELPARAM(pos, pos)); | |
450 | #endif // Win32/16 | |
451 | ||
452 | static const char *nothing = ""; | |
453 | SendMessage(hWnd, EM_REPLACESEL, 0, (LPARAM)nothing); | |
2bda0e17 KB |
454 | } |
455 | ||
cd471848 | 456 | void wxTextCtrl::SetInsertionPointEnd() |
2bda0e17 | 457 | { |
a1b82138 VZ |
458 | long pos = GetLastPosition(); |
459 | SetInsertionPoint(pos); | |
2bda0e17 KB |
460 | } |
461 | ||
cd471848 | 462 | long wxTextCtrl::GetInsertionPoint() const |
2bda0e17 | 463 | { |
57c208c5 | 464 | #if wxUSE_RICHEDIT |
a1b82138 VZ |
465 | if (m_isRich) |
466 | { | |
467 | CHARRANGE range; | |
468 | range.cpMin = 0; | |
469 | range.cpMax = 0; | |
470 | SendMessage(GetHwnd(), EM_EXGETSEL, 0, (LPARAM) &range); | |
471 | return range.cpMin; | |
472 | } | |
2bda0e17 KB |
473 | #endif |
474 | ||
a1b82138 VZ |
475 | DWORD Pos = (DWORD)SendMessage(GetHwnd(), EM_GETSEL, 0, 0L); |
476 | return Pos & 0xFFFF; | |
2bda0e17 KB |
477 | } |
478 | ||
cd471848 | 479 | long wxTextCtrl::GetLastPosition() const |
2bda0e17 | 480 | { |
789295bf | 481 | HWND hWnd = GetHwnd(); |
2bda0e17 KB |
482 | |
483 | // Will always return a number > 0 (according to docs) | |
484 | int noLines = (int)SendMessage(hWnd, EM_GETLINECOUNT, (WPARAM)0, (LPARAM)0L); | |
485 | ||
486 | // This gets the char index for the _beginning_ of the last line | |
487 | int charIndex = (int)SendMessage(hWnd, EM_LINEINDEX, (WPARAM)(noLines-1), (LPARAM)0L); | |
39136494 | 488 | |
2bda0e17 KB |
489 | // Get number of characters in the last line. We'll add this to the character |
490 | // index for the last line, 1st position. | |
491 | int lineLength = (int)SendMessage(hWnd, EM_LINELENGTH, (WPARAM)charIndex, (LPARAM)0L); | |
492 | ||
493 | return (long)(charIndex + lineLength); | |
494 | } | |
495 | ||
a1b82138 VZ |
496 | // If the return values from and to are the same, there is no |
497 | // selection. | |
498 | void wxTextCtrl::GetSelection(long* from, long* to) const | |
499 | { | |
500 | #if wxUSE_RICHEDIT | |
501 | if (m_isRich) | |
502 | { | |
503 | CHARRANGE charRange; | |
504 | ::SendMessage(GetHwnd(), EM_EXGETSEL, 0, (LPARAM) (CHARRANGE*) & charRange); | |
505 | ||
506 | *from = charRange.cpMin; | |
507 | *to = charRange.cpMax; | |
508 | ||
509 | return; | |
510 | } | |
511 | #endif | |
512 | DWORD dwStart, dwEnd; | |
513 | WPARAM wParam = (WPARAM) (DWORD*) & dwStart; // receives starting position | |
514 | LPARAM lParam = (LPARAM) (DWORD*) & dwEnd; // receives ending position | |
515 | ||
516 | ::SendMessage(GetHwnd(), EM_GETSEL, wParam, lParam); | |
517 | ||
518 | *from = dwStart; | |
519 | *to = dwEnd; | |
520 | } | |
521 | ||
522 | bool wxTextCtrl::IsEditable() const | |
523 | { | |
524 | long style = ::GetWindowLong(GetHwnd(), GWL_STYLE); | |
525 | ||
526 | return ((style & ES_READONLY) == 0); | |
527 | } | |
528 | ||
529 | // ---------------------------------------------------------------------------- | |
530 | // Editing | |
531 | // ---------------------------------------------------------------------------- | |
532 | ||
debe6624 | 533 | void wxTextCtrl::Replace(long from, long to, const wxString& value) |
2bda0e17 | 534 | { |
acbd13a3 | 535 | #if wxUSE_CLIPBOARD |
789295bf | 536 | HWND hWnd = GetHwnd(); |
2bda0e17 KB |
537 | long fromChar = from; |
538 | long toChar = to; | |
39136494 | 539 | |
2bda0e17 KB |
540 | // Set selection and remove it |
541 | #ifdef __WIN32__ | |
542 | SendMessage(hWnd, EM_SETSEL, fromChar, toChar); | |
543 | #else | |
544 | SendMessage(hWnd, EM_SETSEL, (WPARAM)0, (LPARAM)MAKELONG(fromChar, toChar)); | |
545 | #endif | |
546 | SendMessage(hWnd, WM_CUT, (WPARAM)0, (LPARAM)0); | |
547 | ||
548 | // Now replace with 'value', by pasting. | |
837e5743 | 549 | wxSetClipboardData(wxDF_TEXT, (wxObject *) (const wxChar *)value, 0, 0); |
2bda0e17 KB |
550 | |
551 | // Paste into edit control | |
552 | SendMessage(hWnd, WM_PASTE, (WPARAM)0, (LPARAM)0L); | |
acbd13a3 JS |
553 | #else |
554 | wxFAIL_MSG("wxTextCtrl::Replace not implemented if wxUSE_CLIPBOARD is 0."); | |
555 | #endif | |
2bda0e17 KB |
556 | } |
557 | ||
debe6624 | 558 | void wxTextCtrl::Remove(long from, long to) |
2bda0e17 | 559 | { |
789295bf | 560 | HWND hWnd = GetHwnd(); |
2bda0e17 KB |
561 | long fromChar = from; |
562 | long toChar = to; | |
39136494 | 563 | |
2bda0e17 KB |
564 | // Cut all selected text |
565 | #ifdef __WIN32__ | |
566 | SendMessage(hWnd, EM_SETSEL, fromChar, toChar); | |
567 | #else | |
568 | SendMessage(hWnd, EM_SETSEL, (WPARAM)0, (LPARAM)MAKELONG(fromChar, toChar)); | |
569 | #endif | |
570 | SendMessage(hWnd, WM_CUT, (WPARAM)0, (LPARAM)0); | |
571 | } | |
572 | ||
debe6624 | 573 | void wxTextCtrl::SetSelection(long from, long to) |
2bda0e17 | 574 | { |
789295bf | 575 | HWND hWnd = GetHwnd(); |
2bda0e17 KB |
576 | long fromChar = from; |
577 | long toChar = to; | |
a1b82138 VZ |
578 | |
579 | // if from and to are both -1, it means (in wxWindows) that all text should | |
580 | // be selected. Translate into Windows convention | |
2bda0e17 KB |
581 | if ((from == -1) && (to == -1)) |
582 | { | |
583 | fromChar = 0; | |
584 | toChar = -1; | |
585 | } | |
39136494 | 586 | |
2bda0e17 KB |
587 | #ifdef __WIN32__ |
588 | SendMessage(hWnd, EM_SETSEL, (WPARAM)fromChar, (LPARAM)toChar); | |
589 | SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0); | |
590 | #else | |
591 | // WPARAM is 0: selection is scrolled into view | |
592 | SendMessage(hWnd, EM_SETSEL, (WPARAM)0, (LPARAM)MAKELONG(fromChar, toChar)); | |
593 | #endif | |
594 | } | |
595 | ||
596 | bool wxTextCtrl::LoadFile(const wxString& file) | |
597 | { | |
a1b82138 | 598 | if ( wxTextCtrlBase::LoadFile(file) ) |
cd471848 | 599 | { |
a1b82138 VZ |
600 | // update the size limit if needed |
601 | AdjustSpaceLimit(); | |
2bda0e17 | 602 | |
a1b82138 | 603 | return TRUE; |
2bda0e17 | 604 | } |
2bda0e17 | 605 | |
a1b82138 | 606 | return FALSE; |
2bda0e17 KB |
607 | } |
608 | ||
cd471848 | 609 | bool wxTextCtrl::IsModified() const |
2bda0e17 | 610 | { |
789295bf | 611 | return (SendMessage(GetHwnd(), EM_GETMODIFY, 0, 0) != 0); |
2bda0e17 KB |
612 | } |
613 | ||
614 | // Makes 'unmodified' | |
cd471848 | 615 | void wxTextCtrl::DiscardEdits() |
2bda0e17 | 616 | { |
a1b82138 | 617 | SendMessage(GetHwnd(), EM_SETMODIFY, FALSE, 0L); |
2bda0e17 KB |
618 | } |
619 | ||
cd471848 | 620 | int wxTextCtrl::GetNumberOfLines() const |
2bda0e17 | 621 | { |
789295bf | 622 | return (int)SendMessage(GetHwnd(), EM_GETLINECOUNT, (WPARAM)0, (LPARAM)0); |
2bda0e17 KB |
623 | } |
624 | ||
debe6624 | 625 | long wxTextCtrl::XYToPosition(long x, long y) const |
2bda0e17 | 626 | { |
789295bf | 627 | HWND hWnd = GetHwnd(); |
2bda0e17 KB |
628 | |
629 | // This gets the char index for the _beginning_ of this line | |
630 | int charIndex = (int)SendMessage(hWnd, EM_LINEINDEX, (WPARAM)y, (LPARAM)0); | |
631 | return (long)(x + charIndex); | |
632 | } | |
633 | ||
0efe5ba7 | 634 | bool wxTextCtrl::PositionToXY(long pos, long *x, long *y) const |
2bda0e17 | 635 | { |
789295bf | 636 | HWND hWnd = GetHwnd(); |
2bda0e17 KB |
637 | |
638 | // This gets the line number containing the character | |
0efe5ba7 VZ |
639 | int lineNo; |
640 | #if wxUSE_RICHEDIT | |
641 | if ( m_isRich ) | |
642 | { | |
643 | lineNo = (int)SendMessage(hWnd, EM_EXLINEFROMCHAR, 0, (LPARAM)pos); | |
644 | } | |
645 | else | |
646 | #endif // wxUSE_RICHEDIT | |
647 | lineNo = (int)SendMessage(hWnd, EM_LINEFROMCHAR, (WPARAM)pos, 0); | |
648 | ||
649 | if ( lineNo == -1 ) | |
650 | { | |
651 | // no such line | |
652 | return FALSE; | |
653 | } | |
654 | ||
2bda0e17 KB |
655 | // This gets the char index for the _beginning_ of this line |
656 | int charIndex = (int)SendMessage(hWnd, EM_LINEINDEX, (WPARAM)lineNo, (LPARAM)0); | |
0efe5ba7 VZ |
657 | if ( charIndex == -1 ) |
658 | { | |
659 | return FALSE; | |
660 | } | |
661 | ||
2bda0e17 | 662 | // The X position must therefore be the different between pos and charIndex |
0efe5ba7 VZ |
663 | if ( x ) |
664 | *x = (long)(pos - charIndex); | |
665 | if ( y ) | |
666 | *y = (long)lineNo; | |
667 | ||
668 | return TRUE; | |
2bda0e17 KB |
669 | } |
670 | ||
debe6624 | 671 | void wxTextCtrl::ShowPosition(long pos) |
2bda0e17 | 672 | { |
789295bf | 673 | HWND hWnd = GetHwnd(); |
2bda0e17 KB |
674 | |
675 | // To scroll to a position, we pass the number of lines and characters | |
676 | // to scroll *by*. This means that we need to: | |
677 | // (1) Find the line position of the current line. | |
678 | // (2) Find the line position of pos. | |
679 | // (3) Scroll by (pos - current). | |
680 | // For now, ignore the horizontal scrolling. | |
681 | ||
682 | // Is this where scrolling is relative to - the line containing the caret? | |
683 | // Or is the first visible line??? Try first visible line. | |
684 | // int currentLineLineNo1 = (int)SendMessage(hWnd, EM_LINEFROMCHAR, (WPARAM)-1, (LPARAM)0L); | |
685 | ||
686 | int currentLineLineNo = (int)SendMessage(hWnd, EM_GETFIRSTVISIBLELINE, (WPARAM)0, (LPARAM)0L); | |
687 | ||
688 | int specifiedLineLineNo = (int)SendMessage(hWnd, EM_LINEFROMCHAR, (WPARAM)pos, (LPARAM)0L); | |
39136494 | 689 | |
2bda0e17 KB |
690 | int linesToScroll = specifiedLineLineNo - currentLineLineNo; |
691 | ||
2bda0e17 | 692 | if (linesToScroll != 0) |
de4d7713 | 693 | (void)SendMessage(hWnd, EM_LINESCROLL, (WPARAM)0, (LPARAM)linesToScroll); |
2bda0e17 KB |
694 | } |
695 | ||
debe6624 | 696 | int wxTextCtrl::GetLineLength(long lineNo) const |
2bda0e17 KB |
697 | { |
698 | long charIndex = XYToPosition(0, lineNo); | |
4438caf4 | 699 | int len = (int)SendMessage(GetHwnd(), EM_LINELENGTH, charIndex, 0); |
2bda0e17 KB |
700 | return len; |
701 | } | |
702 | ||
debe6624 | 703 | wxString wxTextCtrl::GetLineText(long lineNo) const |
2bda0e17 | 704 | { |
a1b82138 | 705 | size_t len = (size_t)GetLineLength(lineNo) + 1; |
4438caf4 VZ |
706 | char *buf = (char *)malloc(len); |
707 | *(WORD *)buf = len; | |
708 | int noChars = (int)SendMessage(GetHwnd(), EM_GETLINE, lineNo, (LPARAM)buf); | |
709 | buf[noChars] = 0; | |
710 | ||
711 | wxString str(buf); | |
712 | ||
713 | free(buf); | |
714 | ||
715 | return str; | |
2bda0e17 KB |
716 | } |
717 | ||
a1b82138 | 718 | // ---------------------------------------------------------------------------- |
ca8b28f2 | 719 | // Undo/redo |
a1b82138 VZ |
720 | // ---------------------------------------------------------------------------- |
721 | ||
ca8b28f2 JS |
722 | void wxTextCtrl::Undo() |
723 | { | |
724 | if (CanUndo()) | |
725 | { | |
789295bf | 726 | ::SendMessage(GetHwnd(), EM_UNDO, 0, 0); |
ca8b28f2 JS |
727 | } |
728 | } | |
729 | ||
730 | void wxTextCtrl::Redo() | |
731 | { | |
732 | if (CanRedo()) | |
733 | { | |
734 | // Same as Undo, since Undo undoes the undo, i.e. a redo. | |
789295bf | 735 | ::SendMessage(GetHwnd(), EM_UNDO, 0, 0); |
ca8b28f2 JS |
736 | } |
737 | } | |
738 | ||
739 | bool wxTextCtrl::CanUndo() const | |
740 | { | |
789295bf | 741 | return (::SendMessage(GetHwnd(), EM_CANUNDO, 0, 0) != 0); |
ca8b28f2 JS |
742 | } |
743 | ||
744 | bool wxTextCtrl::CanRedo() const | |
745 | { | |
789295bf | 746 | return (::SendMessage(GetHwnd(), EM_CANUNDO, 0, 0) != 0); |
ca8b28f2 JS |
747 | } |
748 | ||
a1b82138 VZ |
749 | // ---------------------------------------------------------------------------- |
750 | // implemenation details | |
751 | // ---------------------------------------------------------------------------- | |
39136494 | 752 | |
2bda0e17 KB |
753 | void wxTextCtrl::Command(wxCommandEvent & event) |
754 | { | |
a1b82138 VZ |
755 | SetValue(event.GetString()); |
756 | ProcessCommand (event); | |
2bda0e17 KB |
757 | } |
758 | ||
759 | void wxTextCtrl::OnDropFiles(wxDropFilesEvent& event) | |
760 | { | |
a1b82138 VZ |
761 | // By default, load the first file into the text window. |
762 | if (event.GetNumberOfFiles() > 0) | |
763 | { | |
764 | LoadFile(event.GetFiles()[0]); | |
765 | } | |
2bda0e17 KB |
766 | } |
767 | ||
2bda0e17 KB |
768 | void wxTextCtrl::OnChar(wxKeyEvent& event) |
769 | { | |
42e69d6b | 770 | switch ( event.KeyCode() ) |
cd471848 | 771 | { |
cd471848 | 772 | case WXK_RETURN: |
39136494 | 773 | if ( !(m_windowStyle & wxTE_MULTILINE) ) |
cd471848 VZ |
774 | { |
775 | wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId); | |
776 | event.SetEventObject( this ); | |
777 | if ( GetEventHandler()->ProcessEvent(event) ) | |
778 | return; | |
779 | } | |
5fb9fcfc VZ |
780 | //else: multiline controls need Enter for themselves |
781 | ||
782 | break; | |
4d91c1d1 | 783 | |
cd471848 | 784 | case WXK_TAB: |
319fefa9 VZ |
785 | // always produce navigation event - even if we process TAB |
786 | // ourselves the fact that we got here means that the user code | |
787 | // decided to skip processing of this TAB - probably to let it | |
788 | // do its default job. | |
5fb9fcfc VZ |
789 | // |
790 | // NB: Notice that Ctrl-Tab is handled elsewhere and Alt-Tab is | |
791 | // handled by Windows | |
cd471848 | 792 | { |
5fb9fcfc VZ |
793 | wxNavigationKeyEvent eventNav; |
794 | eventNav.SetDirection(!event.ShiftDown()); | |
795 | eventNav.SetWindowChange(FALSE); | |
796 | eventNav.SetEventObject(this); | |
39136494 | 797 | |
5fb9fcfc | 798 | if ( GetEventHandler()->ProcessEvent(eventNav) ) |
cd471848 VZ |
799 | return; |
800 | } | |
341c92a8 | 801 | break; |
4d91c1d1 VZ |
802 | |
803 | default: | |
804 | event.Skip(); | |
39136494 | 805 | return; |
cd471848 | 806 | } |
39136494 | 807 | |
cd471848 VZ |
808 | // don't just call event.Skip() because this will cause TABs and ENTERs |
809 | // be passed upwards and we don't always want this - instead process it | |
810 | // right here | |
42e69d6b VZ |
811 | |
812 | // FIXME | |
813 | event.Skip(); | |
2bda0e17 KB |
814 | } |
815 | ||
debe6624 | 816 | bool wxTextCtrl::MSWCommand(WXUINT param, WXWORD WXUNUSED(id)) |
2bda0e17 | 817 | { |
789295bf VZ |
818 | switch (param) |
819 | { | |
820 | case EN_SETFOCUS: | |
821 | case EN_KILLFOCUS: | |
822 | { | |
823 | wxFocusEvent event(param == EN_KILLFOCUS ? wxEVT_KILL_FOCUS | |
824 | : wxEVT_SET_FOCUS, | |
825 | m_windowId); | |
826 | event.SetEventObject( this ); | |
827 | GetEventHandler()->ProcessEvent(event); | |
828 | } | |
829 | break; | |
ae29de83 | 830 | |
789295bf VZ |
831 | case EN_CHANGE: |
832 | { | |
833 | wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, m_windowId); | |
834 | wxString val(GetValue()); | |
835 | if ( !val.IsNull() ) | |
836 | event.m_commandString = WXSTRINGCAST val; | |
837 | event.SetEventObject( this ); | |
838 | ProcessCommand(event); | |
839 | } | |
840 | break; | |
2bda0e17 | 841 | |
789295bf VZ |
842 | case EN_ERRSPACE: |
843 | // the text size limit has been hit - increase it | |
844 | AdjustSpaceLimit(); | |
845 | break; | |
846 | ||
847 | // the other notification messages are not processed | |
848 | case EN_UPDATE: | |
849 | case EN_MAXTEXT: | |
850 | case EN_HSCROLL: | |
851 | case EN_VSCROLL: | |
852 | default: | |
853 | return FALSE; | |
854 | } | |
855 | ||
856 | // processed | |
857 | return TRUE; | |
2bda0e17 KB |
858 | } |
859 | ||
789295bf VZ |
860 | void wxTextCtrl::AdjustSpaceLimit() |
861 | { | |
25889d3c | 862 | #ifndef __WIN16__ |
789295bf VZ |
863 | unsigned int len = ::GetWindowTextLength(GetHwnd()), |
864 | limit = ::SendMessage(GetHwnd(), EM_GETLIMITTEXT, 0, 0); | |
17d8ee1c | 865 | if ( len >= limit ) |
789295bf VZ |
866 | { |
867 | limit = len + 0x8000; // 32Kb | |
868 | ||
5ea105e0 | 869 | #if wxUSE_RICHEDIT |
789295bf | 870 | if ( m_isRich || limit > 0xffff ) |
5ea105e0 RR |
871 | #else |
872 | if ( limit > 0xffff ) | |
873 | #endif | |
789295bf VZ |
874 | ::SendMessage(GetHwnd(), EM_LIMITTEXT, 0, limit); |
875 | else | |
876 | ::SendMessage(GetHwnd(), EM_LIMITTEXT, limit, 0); | |
877 | } | |
25889d3c | 878 | #endif |
789295bf | 879 | } |
2bda0e17 | 880 | |
a1b82138 | 881 | bool wxTextCtrl::AcceptsFocus() const |
2bda0e17 | 882 | { |
a1b82138 VZ |
883 | // we don't want focus if we can't be edited |
884 | return IsEditable() && wxControl::AcceptsFocus(); | |
885 | } | |
c085e333 | 886 | |
f68586e5 | 887 | wxSize wxTextCtrl::DoGetBestSize() const |
a1b82138 VZ |
888 | { |
889 | int cx, cy; | |
890 | wxGetCharSize(GetHWND(), &cx, &cy, &GetFont()); | |
891 | ||
892 | int wText = DEFAULT_ITEM_WIDTH; | |
893 | ||
894 | int hText = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy); | |
895 | if ( m_windowStyle & wxTE_MULTILINE ) | |
896 | { | |
897 | hText *= wxMin(GetNumberOfLines(), 5); | |
898 | } | |
899 | //else: for single line control everything is ok | |
900 | ||
901 | return wxSize(wText, hText); | |
2bda0e17 | 902 | } |
a1b82138 VZ |
903 | |
904 | // ---------------------------------------------------------------------------- | |
905 | // standard handlers for standard edit menu events | |
906 | // ---------------------------------------------------------------------------- | |
2bda0e17 | 907 | |
e702ff0f JS |
908 | void wxTextCtrl::OnCut(wxCommandEvent& event) |
909 | { | |
910 | Cut(); | |
911 | } | |
912 | ||
913 | void wxTextCtrl::OnCopy(wxCommandEvent& event) | |
914 | { | |
915 | Copy(); | |
916 | } | |
917 | ||
918 | void wxTextCtrl::OnPaste(wxCommandEvent& event) | |
919 | { | |
920 | Paste(); | |
921 | } | |
922 | ||
923 | void wxTextCtrl::OnUndo(wxCommandEvent& event) | |
924 | { | |
925 | Undo(); | |
926 | } | |
927 | ||
928 | void wxTextCtrl::OnRedo(wxCommandEvent& event) | |
929 | { | |
930 | Redo(); | |
931 | } | |
932 | ||
933 | void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event) | |
934 | { | |
935 | event.Enable( CanCut() ); | |
936 | } | |
937 | ||
938 | void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event) | |
939 | { | |
940 | event.Enable( CanCopy() ); | |
941 | } | |
942 | ||
943 | void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event) | |
944 | { | |
945 | event.Enable( CanPaste() ); | |
946 | } | |
947 | ||
948 | void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event) | |
949 | { | |
950 | event.Enable( CanUndo() ); | |
951 | } | |
952 | ||
953 | void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event) | |
954 | { | |
955 | event.Enable( CanRedo() ); | |
956 | } | |
957 |