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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: font.cpp | |
3 | // Purpose: wxFont demo | |
4 | // Author: Vadim Zeitlin | |
5 | // Modified by: | |
6 | // Created: 30.09.99 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) 1999 Vadim Zeitlin | |
9 | // Licence: wxWindows licence | |
10 | ///////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | // For compilers that support precompilation, includes "wx/wx.h". | |
13 | #include "wx/wxprec.h" | |
14 | ||
15 | #ifdef __BORLANDC__ | |
16 | #pragma hdrstop | |
17 | #endif | |
18 | ||
19 | // for all others, include the necessary headers (this file is usually all you | |
20 | // need because it includes almost all standard wxWindows headers | |
21 | #ifndef WX_PRECOMP | |
22 | #include "wx/wx.h" | |
23 | ||
24 | #include "wx/log.h" | |
25 | #endif | |
26 | ||
27 | #include "wx/choicdlg.h" | |
28 | #include "wx/fontdlg.h" | |
29 | #include "wx/fontenum.h" | |
30 | #include "wx/fontmap.h" | |
31 | #include "wx/encconv.h" | |
32 | #include "wx/splitter.h" | |
33 | #include "wx/textfile.h" | |
34 | ||
35 | // ---------------------------------------------------------------------------- | |
36 | // private classes | |
37 | // ---------------------------------------------------------------------------- | |
38 | ||
39 | // Define a new application type, each program should derive a class from wxApp | |
40 | class MyApp : public wxApp | |
41 | { | |
42 | public: | |
43 | // override base class virtuals | |
44 | // ---------------------------- | |
45 | ||
46 | // this one is called on application startup and is a good place for the app | |
47 | // initialization (doing it here and not in the ctor allows to have an error | |
48 | // return: if OnInit() returns false, the application terminates) | |
49 | virtual bool OnInit(); | |
50 | }; | |
51 | ||
52 | // MyCanvas is a canvas on which we show the font sample | |
53 | class MyCanvas: public wxWindow | |
54 | { | |
55 | public: | |
56 | MyCanvas( wxWindow *parent ); | |
57 | virtual ~MyCanvas(); | |
58 | ||
59 | // accessors for the frame | |
60 | const wxFont& GetTextFont() const { return m_font; } | |
61 | const wxColour& GetColour() const { return m_colour; } | |
62 | void SetTextFont(const wxFont& font) { m_font = font; } | |
63 | void SetColour(const wxColour& colour) { m_colour = colour; } | |
64 | ||
65 | // event handlers | |
66 | void OnPaint( wxPaintEvent &event ); | |
67 | ||
68 | private: | |
69 | wxColour m_colour; | |
70 | wxFont m_font; | |
71 | ||
72 | DECLARE_EVENT_TABLE() | |
73 | }; | |
74 | ||
75 | // Define a new frame type: this is going to be our main frame | |
76 | class MyFrame : public wxFrame | |
77 | { | |
78 | public: | |
79 | // ctor(s) | |
80 | MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size); | |
81 | ||
82 | // accessors | |
83 | MyCanvas *GetCanvas() const { return m_canvas; } | |
84 | ||
85 | // event handlers (these functions should _not_ be virtual) | |
86 | void OnQuit(wxCommandEvent& event); | |
87 | void OnAbout(wxCommandEvent& event); | |
88 | ||
89 | void OnIncFont(wxCommandEvent& event) { DoResizeFont(+2); } | |
90 | void OnDecFont(wxCommandEvent& event) { DoResizeFont(-2); } | |
91 | ||
92 | void OnBold(wxCommandEvent& event); | |
93 | void OnItalic(wxCommandEvent& event); | |
94 | void OnUnderline(wxCommandEvent& event); | |
95 | ||
96 | void OnwxPointerFont(wxCommandEvent& event); | |
97 | ||
98 | void OnViewMsg(wxCommandEvent& event); | |
99 | void OnSelectFont(wxCommandEvent& event); | |
100 | void OnEnumerateFamiliesForEncoding(wxCommandEvent& event); | |
101 | void OnEnumerateFamilies(wxCommandEvent& WXUNUSED(event)) | |
102 | { DoEnumerateFamilies(FALSE); } | |
103 | void OnEnumerateFixedFamilies(wxCommandEvent& WXUNUSED(event)) | |
104 | { DoEnumerateFamilies(TRUE); } | |
105 | void OnEnumerateEncodings(wxCommandEvent& event); | |
106 | ||
107 | void OnCheckNativeToFromString(wxCommandEvent& event); | |
108 | ||
109 | protected: | |
110 | bool DoEnumerateFamilies(bool fixedWidthOnly, | |
111 | wxFontEncoding encoding = wxFONTENCODING_SYSTEM, | |
112 | bool silent = FALSE); | |
113 | ||
114 | void DoResizeFont(int diff); | |
115 | void DoChangeFont(const wxFont& font, const wxColour& col = wxNullColour); | |
116 | ||
117 | size_t m_fontSize; // in points | |
118 | ||
119 | wxTextCtrl *m_textctrl; | |
120 | MyCanvas *m_canvas; | |
121 | ||
122 | private: | |
123 | // any class wishing to process wxWindows events must use this macro | |
124 | DECLARE_EVENT_TABLE() | |
125 | }; | |
126 | ||
127 | // ---------------------------------------------------------------------------- | |
128 | // constants | |
129 | // ---------------------------------------------------------------------------- | |
130 | ||
131 | // IDs for the controls and the menu commands | |
132 | enum | |
133 | { | |
134 | // menu items | |
135 | Font_Quit = 1, | |
136 | Font_About, | |
137 | Font_ViewMsg, | |
138 | Font_IncSize, | |
139 | Font_DecSize, | |
140 | Font_Bold, | |
141 | Font_Italic, | |
142 | Font_Underlined, | |
143 | Font_wxNORMAL_FONT, | |
144 | Font_wxSMALL_FONT, | |
145 | Font_wxITALIC_FONT, | |
146 | Font_wxSWISS_FONT, | |
147 | ||
148 | Font_Choose = 100, | |
149 | Font_EnumFamiliesForEncoding, | |
150 | Font_EnumFamilies, | |
151 | Font_EnumFixedFamilies, | |
152 | Font_EnumEncodings, | |
153 | Font_CheckNativeToFromString, | |
154 | Font_Max | |
155 | }; | |
156 | ||
157 | // ---------------------------------------------------------------------------- | |
158 | // event tables and other macros for wxWindows | |
159 | // ---------------------------------------------------------------------------- | |
160 | ||
161 | // the event tables connect the wxWindows events with the functions (event | |
162 | // handlers) which process them. It can be also done at run-time, but for the | |
163 | // simple menu events like this the static method is much simpler. | |
164 | BEGIN_EVENT_TABLE(MyFrame, wxFrame) | |
165 | EVT_MENU(Font_Quit, MyFrame::OnQuit) | |
166 | EVT_MENU(Font_ViewMsg, MyFrame::OnViewMsg) | |
167 | EVT_MENU(Font_About, MyFrame::OnAbout) | |
168 | ||
169 | EVT_MENU(Font_IncSize, MyFrame::OnIncFont) | |
170 | EVT_MENU(Font_DecSize, MyFrame::OnDecFont) | |
171 | EVT_MENU(Font_Bold, MyFrame::OnBold) | |
172 | EVT_MENU(Font_Italic, MyFrame::OnItalic) | |
173 | EVT_MENU(Font_Underlined, MyFrame::OnUnderline) | |
174 | ||
175 | EVT_MENU(Font_wxNORMAL_FONT, MyFrame::OnwxPointerFont) | |
176 | EVT_MENU(Font_wxSMALL_FONT, MyFrame::OnwxPointerFont) | |
177 | EVT_MENU(Font_wxITALIC_FONT, MyFrame::OnwxPointerFont) | |
178 | EVT_MENU(Font_wxSWISS_FONT, MyFrame::OnwxPointerFont) | |
179 | ||
180 | EVT_MENU(Font_CheckNativeToFromString, MyFrame::OnCheckNativeToFromString) | |
181 | ||
182 | EVT_MENU(Font_Choose, MyFrame::OnSelectFont) | |
183 | EVT_MENU(Font_EnumFamiliesForEncoding, MyFrame::OnEnumerateFamiliesForEncoding) | |
184 | EVT_MENU(Font_EnumFamilies, MyFrame::OnEnumerateFamilies) | |
185 | EVT_MENU(Font_EnumFixedFamilies, MyFrame::OnEnumerateFixedFamilies) | |
186 | EVT_MENU(Font_EnumEncodings, MyFrame::OnEnumerateEncodings) | |
187 | END_EVENT_TABLE() | |
188 | ||
189 | // Create a new application object: this macro will allow wxWindows to create | |
190 | // the application object during program execution (it's better than using a | |
191 | // static object for many reasons) and also declares the accessor function | |
192 | // wxGetApp() which will return the reference of the right type (i.e. MyApp and | |
193 | // not wxApp) | |
194 | IMPLEMENT_APP(MyApp) | |
195 | ||
196 | // ============================================================================ | |
197 | // implementation | |
198 | // ============================================================================ | |
199 | ||
200 | // ---------------------------------------------------------------------------- | |
201 | // the application class | |
202 | // ---------------------------------------------------------------------------- | |
203 | ||
204 | // `Main program' equivalent: the program execution "starts" here | |
205 | bool MyApp::OnInit() | |
206 | { | |
207 | // Create the main application window | |
208 | MyFrame *frame = new MyFrame(wxT("Font wxWindows demo"), | |
209 | wxPoint(50, 50), wxSize(600, 400)); | |
210 | ||
211 | // Show it and tell the application that it's our main window | |
212 | frame->Show(TRUE); | |
213 | SetTopWindow(frame); | |
214 | ||
215 | // success: wxApp::OnRun() will be called which will enter the main message | |
216 | // loop and the application will run. If we returned FALSE here, the | |
217 | // application would exit immediately. | |
218 | return TRUE; | |
219 | } | |
220 | ||
221 | // ---------------------------------------------------------------------------- | |
222 | // main frame | |
223 | // ---------------------------------------------------------------------------- | |
224 | ||
225 | // frame constructor | |
226 | MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size) | |
227 | : wxFrame((wxFrame *)NULL, -1, title, pos, size), m_textctrl(NULL) | |
228 | { | |
229 | m_fontSize = 12; | |
230 | ||
231 | // create a menu bar | |
232 | wxMenu *menuFile = new wxMenu; | |
233 | ||
234 | menuFile->Append(Font_ViewMsg, wxT("&View...\tCtrl-V"), | |
235 | wxT("View an email message file")); | |
236 | menuFile->AppendSeparator(); | |
237 | menuFile->Append(Font_About, wxT("&About...\tCtrl-A"), wxT("Show about dialog")); | |
238 | menuFile->AppendSeparator(); | |
239 | menuFile->Append(Font_Quit, wxT("E&xit\tAlt-X"), wxT("Quit this program")); | |
240 | ||
241 | wxMenu *menuFont = new wxMenu; | |
242 | menuFont->Append(Font_IncSize, wxT("&Increase font size by 2 points\tCtrl-I")); | |
243 | menuFont->Append(Font_DecSize, wxT("&Decrease font size by 2 points\tCtrl-D")); | |
244 | menuFont->AppendSeparator(); | |
245 | menuFont->Append(Font_Bold, wxT("&Bold\tCtrl-B"), wxT("Toggle bold state"), TRUE); | |
246 | menuFont->Append(Font_Italic, wxT("&Oblique\tCtrl-O"), wxT("Toggle italic state"), TRUE); | |
247 | menuFont->Append(Font_Underlined, wxT("&Underlined\tCtrl-U"), | |
248 | wxT("Toggle underlined state"), TRUE); | |
249 | ||
250 | menuFont->AppendSeparator(); | |
251 | menuFont->Append(Font_CheckNativeToFromString, | |
252 | wxT("Check Native Font Info To/From String")); | |
253 | ||
254 | wxMenu *menuSelect = new wxMenu; | |
255 | menuSelect->Append(Font_Choose, wxT("&Select font...\tCtrl-S"), | |
256 | wxT("Select a standard font")); | |
257 | ||
258 | wxMenu *menuStdFonts = new wxMenu; | |
259 | menuStdFonts->Append(Font_wxNORMAL_FONT, wxT("wxNORMAL_FONT"), wxT("Normal font used by wxWindows")); | |
260 | menuStdFonts->Append(Font_wxSMALL_FONT, wxT("wxSMALL_FONT"), wxT("Small font used by wxWindows")); | |
261 | menuStdFonts->Append(Font_wxITALIC_FONT, wxT("wxITALIC_FONT"), wxT("Italic font used by wxWindows")); | |
262 | menuStdFonts->Append(Font_wxSWISS_FONT, wxT("wxSWISS_FONT"), wxT("Swiss font used by wxWindows")); | |
263 | menuSelect->Append(-2, wxT("Standar&d fonts"), menuStdFonts); | |
264 | ||
265 | menuSelect->AppendSeparator(); | |
266 | menuSelect->Append(Font_EnumFamilies, wxT("Enumerate font &families\tCtrl-F")); | |
267 | menuSelect->Append(Font_EnumFixedFamilies, | |
268 | wxT("Enumerate fi&xed font families\tCtrl-X")); | |
269 | menuSelect->Append(Font_EnumEncodings, | |
270 | wxT("Enumerate &encodings\tCtrl-E")); | |
271 | menuSelect->Append(Font_EnumFamiliesForEncoding, | |
272 | wxT("Find font for en&coding...\tCtrl-C"), | |
273 | wxT("Find font families for given encoding")); | |
274 | ||
275 | // now append the freshly created menu to the menu bar... | |
276 | wxMenuBar *menuBar = new wxMenuBar; | |
277 | menuBar->Append(menuFile, wxT("&File")); | |
278 | menuBar->Append(menuFont, wxT("F&ont")); | |
279 | menuBar->Append(menuSelect, wxT("&Select")); | |
280 | ||
281 | // ... and attach this menu bar to the frame | |
282 | SetMenuBar(menuBar); | |
283 | ||
284 | wxSplitterWindow *splitter = new wxSplitterWindow(this); | |
285 | ||
286 | m_textctrl = new wxTextCtrl(splitter, -1, | |
287 | wxT("Paste text here to see how it looks\nlike in the given font"), | |
288 | wxDefaultPosition, wxDefaultSize, | |
289 | wxTE_MULTILINE); | |
290 | ||
291 | m_canvas = new MyCanvas(splitter); | |
292 | ||
293 | splitter->SplitHorizontally(m_textctrl, m_canvas, 100); | |
294 | ||
295 | // create a status bar just for fun (by default with 1 pane only) | |
296 | CreateStatusBar(); | |
297 | SetStatusText(wxT("Welcome to wxWindows font demo!")); | |
298 | } | |
299 | ||
300 | // -------------------------------------------------------- | |
301 | ||
302 | class MyEncodingEnumerator : public wxFontEnumerator | |
303 | { | |
304 | public: | |
305 | MyEncodingEnumerator() | |
306 | { m_n = 0; } | |
307 | ||
308 | const wxString& GetText() const | |
309 | { return m_text; } | |
310 | ||
311 | protected: | |
312 | virtual bool OnFontEncoding(const wxString& facename, | |
313 | const wxString& encoding) | |
314 | { | |
315 | wxString text; | |
316 | text.Printf(wxT("Encoding %d: %s (available in facename '%s')\n"), | |
317 | ++m_n, encoding.c_str(), facename.c_str()); | |
318 | m_text += text; | |
319 | return TRUE; | |
320 | } | |
321 | ||
322 | private: | |
323 | size_t m_n; | |
324 | wxString m_text; | |
325 | }; | |
326 | ||
327 | void MyFrame::OnEnumerateEncodings(wxCommandEvent& WXUNUSED(event)) | |
328 | { | |
329 | MyEncodingEnumerator fontEnumerator; | |
330 | ||
331 | fontEnumerator.EnumerateEncodings(); | |
332 | ||
333 | wxLogMessage(wxT("Enumerating all available encodings:\n%s"), | |
334 | fontEnumerator.GetText().c_str()); | |
335 | } | |
336 | ||
337 | // ------------------------------------------------------------- | |
338 | ||
339 | class MyFontEnumerator : public wxFontEnumerator | |
340 | { | |
341 | public: | |
342 | bool GotAny() const | |
343 | { return !m_facenames.IsEmpty(); } | |
344 | ||
345 | const wxArrayString& GetFacenames() const | |
346 | { return m_facenames; } | |
347 | ||
348 | protected: | |
349 | virtual bool OnFacename(const wxString& facename) | |
350 | { | |
351 | m_facenames.Add(facename); | |
352 | return TRUE; | |
353 | } | |
354 | ||
355 | private: | |
356 | wxArrayString m_facenames; | |
357 | } fontEnumerator; | |
358 | ||
359 | bool MyFrame::DoEnumerateFamilies(bool fixedWidthOnly, | |
360 | wxFontEncoding encoding, | |
361 | bool silent) | |
362 | { | |
363 | MyFontEnumerator fontEnumerator; | |
364 | ||
365 | fontEnumerator.EnumerateFacenames(encoding, fixedWidthOnly); | |
366 | ||
367 | if ( fontEnumerator.GotAny() ) | |
368 | { | |
369 | int nFacenames = fontEnumerator.GetFacenames().GetCount(); | |
370 | if ( !silent ) | |
371 | { | |
372 | wxLogStatus(this, wxT("Found %d %sfonts"), | |
373 | nFacenames, fixedWidthOnly ? wxT("fixed width ") : wxT("")); | |
374 | } | |
375 | ||
376 | wxString facename; | |
377 | if ( silent ) | |
378 | { | |
379 | // choose the first | |
380 | facename = fontEnumerator.GetFacenames().Item(0); | |
381 | } | |
382 | else | |
383 | { | |
384 | // let the user choose | |
385 | wxString *facenames = new wxString[nFacenames]; | |
386 | int n; | |
387 | for ( n = 0; n < nFacenames; n++ ) | |
388 | facenames[n] = fontEnumerator.GetFacenames().Item(n); | |
389 | ||
390 | n = wxGetSingleChoiceIndex(wxT("Choose a facename"), wxT("Font demo"), | |
391 | nFacenames, facenames, this); | |
392 | ||
393 | if ( n != -1 ) | |
394 | facename = facenames[n]; | |
395 | ||
396 | delete [] facenames; | |
397 | } | |
398 | ||
399 | if ( !facename.IsEmpty() ) | |
400 | { | |
401 | wxFont font(12, wxFONTFAMILY_DEFAULT, wxFONTSTYLE_NORMAL, | |
402 | wxFONTWEIGHT_NORMAL, FALSE, facename, encoding); | |
403 | ||
404 | DoChangeFont(font); | |
405 | } | |
406 | ||
407 | return TRUE; | |
408 | } | |
409 | else if ( !silent ) | |
410 | { | |
411 | wxLogWarning(wxT("No such fonts found.")); | |
412 | } | |
413 | ||
414 | return FALSE; | |
415 | } | |
416 | ||
417 | void MyFrame::OnEnumerateFamiliesForEncoding(wxCommandEvent& WXUNUSED(event)) | |
418 | { | |
419 | static wxFontEncoding encodings[] = | |
420 | { | |
421 | wxFONTENCODING_ISO8859_1, | |
422 | wxFONTENCODING_ISO8859_2, | |
423 | wxFONTENCODING_ISO8859_5, | |
424 | wxFONTENCODING_ISO8859_7, | |
425 | wxFONTENCODING_ISO8859_15, | |
426 | wxFONTENCODING_KOI8, | |
427 | wxFONTENCODING_CP1250, | |
428 | wxFONTENCODING_CP1251, | |
429 | wxFONTENCODING_CP1252, | |
430 | }; | |
431 | ||
432 | static const wxString encodingNames[] = | |
433 | { | |
434 | wxT("Western European (ISO-8859-1)"), | |
435 | wxT("Central European (ISO-8859-2)"), | |
436 | wxT("Cyrillic (ISO-8859-5)"), | |
437 | wxT("Greek (ISO-8859-7)"), | |
438 | wxT("Western European with Euro (ISO-8859-15)"), | |
439 | wxT("KOI8-R"), | |
440 | wxT("Windows Central European (CP 1250)"), | |
441 | wxT("Windows Cyrillic (CP 1251)"), | |
442 | wxT("Windows Western European (CP 1252)"), | |
443 | }; | |
444 | ||
445 | int n = wxGetSingleChoiceIndex(wxT("Choose an encoding"), wxT("Font demo"), | |
446 | WXSIZEOF(encodingNames), | |
447 | encodingNames, | |
448 | this); | |
449 | ||
450 | if ( n != -1 ) | |
451 | { | |
452 | DoEnumerateFamilies(FALSE, encodings[n]); | |
453 | } | |
454 | } | |
455 | ||
456 | void MyFrame::OnCheckNativeToFromString(wxCommandEvent& WXUNUSED(event)) | |
457 | { | |
458 | wxString fontInfo = m_canvas->GetTextFont().GetNativeFontInfoDesc(); | |
459 | ||
460 | if ( fontInfo.IsEmpty() ) | |
461 | { | |
462 | wxLogError(wxT("Native font info string is empty!")); | |
463 | } | |
464 | else | |
465 | { | |
466 | wxFont *font = wxFont::New(fontInfo); | |
467 | if ( fontInfo != font->GetNativeFontInfoDesc() ) | |
468 | wxLogError(wxT("wxNativeFontInfo ToString()/FromString() broken!")); | |
469 | else | |
470 | wxLogMessage(wxT("wxNativeFontInfo works: %s"), fontInfo.c_str()); | |
471 | ||
472 | delete font; | |
473 | } | |
474 | } | |
475 | ||
476 | void MyFrame::DoResizeFont(int diff) | |
477 | { | |
478 | wxFont font = m_canvas->GetTextFont(); | |
479 | ||
480 | font.SetPointSize(font.GetPointSize() + diff); | |
481 | DoChangeFont(font); | |
482 | } | |
483 | ||
484 | void MyFrame::OnBold(wxCommandEvent& event) | |
485 | { | |
486 | wxFont font = m_canvas->GetTextFont(); | |
487 | ||
488 | font.SetWeight(event.IsChecked() ? wxFONTWEIGHT_BOLD : wxFONTWEIGHT_NORMAL); | |
489 | DoChangeFont(font); | |
490 | } | |
491 | ||
492 | void MyFrame::OnItalic(wxCommandEvent& event) | |
493 | { | |
494 | wxFont font = m_canvas->GetTextFont(); | |
495 | ||
496 | font.SetStyle(event.IsChecked() ? wxFONTSTYLE_ITALIC : wxFONTSTYLE_NORMAL); | |
497 | DoChangeFont(font); | |
498 | } | |
499 | ||
500 | void MyFrame::OnUnderline(wxCommandEvent& event) | |
501 | { | |
502 | wxFont font = m_canvas->GetTextFont(); | |
503 | ||
504 | font.SetUnderlined(event.IsChecked()); | |
505 | DoChangeFont(font); | |
506 | } | |
507 | ||
508 | void MyFrame::OnwxPointerFont(wxCommandEvent& event) | |
509 | { | |
510 | wxFont font; | |
511 | ||
512 | switch (event.GetId()) | |
513 | { | |
514 | case Font_wxNORMAL_FONT : font = wxFont(*wxNORMAL_FONT); break; | |
515 | case Font_wxSMALL_FONT : font = wxFont(*wxSMALL_FONT); break; | |
516 | case Font_wxITALIC_FONT : font = wxFont(*wxITALIC_FONT); break; | |
517 | case Font_wxSWISS_FONT : font = wxFont(*wxSWISS_FONT); break; | |
518 | default : font = wxFont(*wxNORMAL_FONT); break; | |
519 | } | |
520 | ||
521 | GetMenuBar()->Check(Font_Bold, FALSE); | |
522 | GetMenuBar()->Check(Font_Italic, FALSE); | |
523 | GetMenuBar()->Check(Font_Underlined, FALSE); | |
524 | ||
525 | DoChangeFont(font); | |
526 | } | |
527 | ||
528 | void MyFrame::DoChangeFont(const wxFont& font, const wxColour& col) | |
529 | { | |
530 | m_canvas->SetTextFont(font); | |
531 | if ( col.Ok() ) | |
532 | m_canvas->SetColour(col); | |
533 | m_canvas->Refresh(); | |
534 | ||
535 | m_textctrl->SetFont(font); | |
536 | if ( col.Ok() ) | |
537 | m_textctrl->SetForegroundColour(col); | |
538 | } | |
539 | ||
540 | void MyFrame::OnSelectFont(wxCommandEvent& WXUNUSED(event)) | |
541 | { | |
542 | wxFontData data; | |
543 | data.SetInitialFont(m_canvas->GetTextFont()); | |
544 | data.SetColour(m_canvas->GetColour()); | |
545 | ||
546 | wxFontDialog dialog(this, data); | |
547 | if ( dialog.ShowModal() == wxID_OK ) | |
548 | { | |
549 | wxFontData retData = dialog.GetFontData(); | |
550 | wxFont font = retData.GetChosenFont(); | |
551 | wxColour colour = retData.GetColour(); | |
552 | ||
553 | DoChangeFont(font, colour); | |
554 | ||
555 | // update the state of the bold/italic/underlined menu items | |
556 | wxMenuBar *mbar = GetMenuBar(); | |
557 | if ( mbar ) | |
558 | { | |
559 | mbar->Check(Font_Bold, font.GetWeight() == wxFONTWEIGHT_BOLD); | |
560 | mbar->Check(Font_Italic, font.GetStyle() == wxFONTSTYLE_ITALIC); | |
561 | mbar->Check(Font_Underlined, font.GetUnderlined()); | |
562 | } | |
563 | } | |
564 | } | |
565 | ||
566 | void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event)) | |
567 | { | |
568 | // TRUE is to force the frame to close | |
569 | Close(TRUE); | |
570 | } | |
571 | ||
572 | void MyFrame::OnViewMsg(wxCommandEvent& WXUNUSED(event)) | |
573 | { | |
574 | // first, choose the file | |
575 | static wxString s_dir, s_file; | |
576 | wxFileDialog dialog(this, wxT("Open an email message file"), | |
577 | s_dir, s_file); | |
578 | if ( dialog.ShowModal() != wxID_OK ) | |
579 | return; | |
580 | ||
581 | // save for the next time | |
582 | s_dir = dialog.GetDirectory(); | |
583 | s_file = dialog.GetFilename(); | |
584 | ||
585 | wxString filename = dialog.GetPath(); | |
586 | ||
587 | // load it and search for Content-Type header | |
588 | wxTextFile file(filename); | |
589 | if ( !file.Open() ) | |
590 | return; | |
591 | ||
592 | wxString charset; | |
593 | ||
594 | static const wxChar *prefix = wxT("Content-Type: text/plain; charset="); | |
595 | const size_t len = wxStrlen(prefix); | |
596 | ||
597 | size_t n, count = file.GetLineCount(); | |
598 | for ( n = 0; n < count; n++ ) | |
599 | { | |
600 | wxString line = file[n]; | |
601 | ||
602 | if ( !line ) | |
603 | { | |
604 | // if it is an email message, headers are over, no need to parse | |
605 | // all the file | |
606 | break; | |
607 | } | |
608 | ||
609 | if ( line.Left(len) == prefix ) | |
610 | { | |
611 | // found! | |
612 | const wxChar *pc = line.c_str() + len; | |
613 | if ( *pc == wxT('"') ) | |
614 | pc++; | |
615 | ||
616 | while ( *pc && *pc != wxT('"') ) | |
617 | { | |
618 | charset += *pc++; | |
619 | } | |
620 | ||
621 | break; | |
622 | } | |
623 | } | |
624 | ||
625 | if ( !charset ) | |
626 | { | |
627 | wxLogError(wxT("The file '%s' doesn't contain charset information."), | |
628 | filename.c_str()); | |
629 | ||
630 | return; | |
631 | } | |
632 | ||
633 | // ok, now get the corresponding encoding | |
634 | wxFontEncoding fontenc = wxFontMapper::Get()->CharsetToEncoding(charset); | |
635 | if ( fontenc == wxFONTENCODING_SYSTEM ) | |
636 | { | |
637 | wxLogError(wxT("Charset '%s' is unsupported."), charset.c_str()); | |
638 | return; | |
639 | } | |
640 | ||
641 | m_textctrl->LoadFile(filename); | |
642 | ||
643 | if ( fontenc == wxFONTENCODING_UTF8 || | |
644 | !wxFontMapper::Get()->IsEncodingAvailable(fontenc) ) | |
645 | { | |
646 | // try to find some similar encoding: | |
647 | wxFontEncoding encAlt; | |
648 | if ( wxFontMapper::Get()->GetAltForEncoding(fontenc, &encAlt) ) | |
649 | { | |
650 | wxEncodingConverter conv; | |
651 | ||
652 | if (conv.Init(fontenc, encAlt)) | |
653 | { | |
654 | fontenc = encAlt; | |
655 | m_textctrl -> SetValue(conv.Convert(m_textctrl -> GetValue())); | |
656 | } | |
657 | else | |
658 | { | |
659 | wxLogWarning(wxT("Cannot convert from '%s' to '%s'."), | |
660 | wxFontMapper::GetEncodingDescription(fontenc).c_str(), | |
661 | wxFontMapper::GetEncodingDescription(encAlt).c_str()); | |
662 | } | |
663 | } | |
664 | else | |
665 | wxLogWarning(wxT("No fonts for encoding '%s' on this system."), | |
666 | wxFontMapper::GetEncodingDescription(fontenc).c_str()); | |
667 | } | |
668 | ||
669 | // and now create the correct font | |
670 | if ( !DoEnumerateFamilies(FALSE, fontenc, TRUE /* silent */) ) | |
671 | { | |
672 | wxFont font(12, wxFONTFAMILY_DEFAULT, wxFONTSTYLE_NORMAL, | |
673 | wxFONTWEIGHT_NORMAL, FALSE /* !underlined */, | |
674 | wxEmptyString /* facename */, fontenc); | |
675 | if ( font.Ok() ) | |
676 | { | |
677 | DoChangeFont(font); | |
678 | } | |
679 | else | |
680 | { | |
681 | wxLogWarning(wxT("No fonts for encoding '%s' on this system."), | |
682 | wxFontMapper::GetEncodingDescription(fontenc).c_str()); | |
683 | } | |
684 | } | |
685 | } | |
686 | ||
687 | void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event)) | |
688 | { | |
689 | wxMessageBox(wxT("wxWindows font demo\n") | |
690 | wxT("(c) 1999 Vadim Zeitlin"), | |
691 | wxT("About Font"), | |
692 | wxOK | wxICON_INFORMATION, this); | |
693 | } | |
694 | ||
695 | // ---------------------------------------------------------------------------- | |
696 | // MyCanvas | |
697 | // ---------------------------------------------------------------------------- | |
698 | ||
699 | BEGIN_EVENT_TABLE(MyCanvas, wxWindow) | |
700 | EVT_PAINT(MyCanvas::OnPaint) | |
701 | END_EVENT_TABLE() | |
702 | ||
703 | MyCanvas::MyCanvas( wxWindow *parent ) | |
704 | : wxWindow( parent, -1 ), | |
705 | m_colour(*wxRED), m_font(*wxNORMAL_FONT) | |
706 | { | |
707 | } | |
708 | ||
709 | MyCanvas::~MyCanvas() | |
710 | { | |
711 | } | |
712 | ||
713 | void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) ) | |
714 | { | |
715 | wxPaintDC dc(this); | |
716 | PrepareDC(dc); | |
717 | ||
718 | // set background | |
719 | dc.SetBackground(wxBrush(wxT("white"), wxSOLID)); | |
720 | dc.Clear(); | |
721 | ||
722 | // one text line height | |
723 | wxCoord hLine = dc.GetCharHeight(); | |
724 | ||
725 | // the current text origin | |
726 | wxCoord x = 5, | |
727 | y = 5; | |
728 | ||
729 | // output the font name/info | |
730 | wxString fontInfo; | |
731 | fontInfo.Printf(wxT("Font size is %d points, family: %s, encoding: %s"), | |
732 | m_font.GetPointSize(), | |
733 | m_font.GetFamilyString().c_str(), | |
734 | wxFontMapper::Get()-> | |
735 | GetEncodingDescription(m_font.GetEncoding()).c_str()); | |
736 | ||
737 | dc.DrawText(fontInfo, x, y); | |
738 | y += hLine; | |
739 | ||
740 | fontInfo.Printf(wxT("Style: %s, weight: %s, fixed width: %s"), | |
741 | m_font.GetStyleString().c_str(), | |
742 | m_font.GetWeightString().c_str(), | |
743 | m_font.IsFixedWidth() ? _T("yes") : _T("no")); | |
744 | ||
745 | dc.DrawText(fontInfo, x, y); | |
746 | y += hLine; | |
747 | ||
748 | if ( m_font.Ok() ) | |
749 | { | |
750 | wxNativeFontInfo *info = m_font.GetNativeFontInfo(); | |
751 | if ( info ) | |
752 | { | |
753 | delete info; | |
754 | ||
755 | wxString fontDesc = m_font.GetNativeFontInfoUserDesc(); | |
756 | fontInfo.Printf(wxT("Native font info: %s"), fontDesc.c_str()); | |
757 | ||
758 | dc.DrawText(fontInfo, x, y); | |
759 | y += hLine; | |
760 | } | |
761 | } | |
762 | ||
763 | y += hLine; | |
764 | ||
765 | // prepare to draw the font | |
766 | dc.SetFont(m_font); | |
767 | dc.SetTextForeground(m_colour); | |
768 | ||
769 | // the size of one cell (Normally biggest char + small margin) | |
770 | long maxCharWidth, maxCharHeight; | |
771 | dc.GetTextExtent(wxT("W"), &maxCharWidth, &maxCharHeight); | |
772 | int w = maxCharWidth + 5, | |
773 | h = maxCharHeight + 4; | |
774 | ||
775 | ||
776 | // print all font symbols from 32 to 256 in 7 rows of 32 chars each | |
777 | for ( int i = 0; i < 7; i++ ) | |
778 | { | |
779 | for ( int j = 0; j < 32; j++ ) | |
780 | { | |
781 | wxChar c = 32 * (i + 1) + j; | |
782 | ||
783 | long charWidth, charHeight; | |
784 | dc.GetTextExtent(c, &charWidth, &charHeight); | |
785 | dc.DrawText | |
786 | ( | |
787 | c, | |
788 | x + w*j + (maxCharWidth - charWidth) / 2 + 1, | |
789 | y + h*i + (maxCharHeight - charHeight) / 2 | |
790 | ); | |
791 | } | |
792 | } | |
793 | ||
794 | // draw the lines between them | |
795 | dc.SetPen(wxPen(wxColour(_T("blue")), 1, wxSOLID)); | |
796 | int l; | |
797 | ||
798 | // horizontal | |
799 | for ( l = 0; l < 8; l++ ) | |
800 | { | |
801 | int yl = y + h*l - 2; | |
802 | dc.DrawLine(x - 2, yl, x + 32*w - 1, yl); | |
803 | } | |
804 | ||
805 | // and vertical | |
806 | for ( l = 0; l < 33; l++ ) | |
807 | { | |
808 | int xl = x + w*l - 2; | |
809 | dc.DrawLine(xl, y - 2, xl, y + 7*h - 1); | |
810 | } | |
811 | } |