]>
Commit | Line | Data |
---|---|---|
1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: src/gtk/utilsgtk.cpp | |
3 | // Purpose: | |
4 | // Author: Robert Roebling | |
5 | // Id: $Id$ | |
6 | // Copyright: (c) 1998 Robert Roebling | |
7 | // Licence: wxWindows licence | |
8 | ///////////////////////////////////////////////////////////////////////////// | |
9 | ||
10 | // For compilers that support precompilation, includes "wx.h". | |
11 | #include "wx/wxprec.h" | |
12 | ||
13 | #include "wx/utils.h" | |
14 | ||
15 | #ifndef WX_PRECOMP | |
16 | #include "wx/string.h" | |
17 | #include "wx/intl.h" | |
18 | #include "wx/log.h" | |
19 | #endif | |
20 | ||
21 | #include "wx/apptrait.h" | |
22 | #include "wx/process.h" | |
23 | #include "wx/sysopt.h" | |
24 | #include "wx/unix/execute.h" | |
25 | ||
26 | #include "wx/gtk/private/timer.h" | |
27 | #include "wx/evtloop.h" | |
28 | ||
29 | #if wxDEBUG_LEVEL | |
30 | #include "wx/gtk/assertdlg_gtk.h" | |
31 | #if wxUSE_STACKWALKER | |
32 | #include "wx/stackwalk.h" | |
33 | #endif // wxUSE_STACKWALKER | |
34 | #endif // wxDEBUG_LEVEL | |
35 | ||
36 | #include <stdarg.h> | |
37 | #include <string.h> | |
38 | #include <sys/stat.h> | |
39 | #include <sys/types.h> | |
40 | #include <sys/wait.h> // for WNOHANG | |
41 | #include <unistd.h> | |
42 | ||
43 | #include "glib.h" | |
44 | #include "gdk/gdk.h" | |
45 | #include "gtk/gtk.h" | |
46 | #include "gdk/gdkx.h" | |
47 | ||
48 | #if wxUSE_DETECT_SM | |
49 | #include "X11/Xlib.h" | |
50 | #include "X11/SM/SMlib.h" | |
51 | #endif | |
52 | ||
53 | //----------------------------------------------------------------------------- | |
54 | // data | |
55 | //----------------------------------------------------------------------------- | |
56 | ||
57 | extern GtkWidget *wxGetRootWindow(); | |
58 | ||
59 | //---------------------------------------------------------------------------- | |
60 | // misc. | |
61 | //---------------------------------------------------------------------------- | |
62 | #ifndef __EMX__ | |
63 | // on OS/2, we use the wxBell from wxBase library | |
64 | ||
65 | void wxBell() | |
66 | { | |
67 | gdk_beep(); | |
68 | } | |
69 | #endif | |
70 | ||
71 | // ---------------------------------------------------------------------------- | |
72 | // display characterstics | |
73 | // ---------------------------------------------------------------------------- | |
74 | ||
75 | void *wxGetDisplay() | |
76 | { | |
77 | return GDK_DISPLAY(); | |
78 | } | |
79 | ||
80 | void wxDisplaySize( int *width, int *height ) | |
81 | { | |
82 | if (width) *width = gdk_screen_width(); | |
83 | if (height) *height = gdk_screen_height(); | |
84 | } | |
85 | ||
86 | void wxDisplaySizeMM( int *width, int *height ) | |
87 | { | |
88 | if (width) *width = gdk_screen_width_mm(); | |
89 | if (height) *height = gdk_screen_height_mm(); | |
90 | } | |
91 | ||
92 | void wxGetMousePosition( int* x, int* y ) | |
93 | { | |
94 | gdk_window_get_pointer( NULL, x, y, NULL ); | |
95 | } | |
96 | ||
97 | bool wxColourDisplay() | |
98 | { | |
99 | return true; | |
100 | } | |
101 | ||
102 | int wxDisplayDepth() | |
103 | { | |
104 | return gdk_drawable_get_visual( wxGetRootWindow()->window )->depth; | |
105 | } | |
106 | ||
107 | wxWindow* wxFindWindowAtPoint(const wxPoint& pt) | |
108 | { | |
109 | return wxGenericFindWindowAtPoint(pt); | |
110 | } | |
111 | ||
112 | #if !wxUSE_UNICODE | |
113 | ||
114 | WXDLLIMPEXP_CORE wxCharBuffer | |
115 | wxConvertToGTK(const wxString& s, wxFontEncoding enc) | |
116 | { | |
117 | wxWCharBuffer wbuf; | |
118 | if ( enc == wxFONTENCODING_SYSTEM || enc == wxFONTENCODING_DEFAULT ) | |
119 | { | |
120 | wbuf = wxConvUI->cMB2WC(s.c_str()); | |
121 | } | |
122 | else // another encoding, use generic conversion class | |
123 | { | |
124 | wbuf = wxCSConv(enc).cMB2WC(s.c_str()); | |
125 | } | |
126 | ||
127 | if ( !wbuf && !s.empty() ) | |
128 | { | |
129 | // conversion failed, but we still want to show something to the user | |
130 | // even if it's going to be wrong it is better than nothing | |
131 | // | |
132 | // we choose ISO8859-1 here arbitrarily, it's just the most common | |
133 | // encoding probably and, also importantly here, conversion from it | |
134 | // never fails as it's done internally by wxCSConv | |
135 | wbuf = wxCSConv(wxFONTENCODING_ISO8859_1).cMB2WC(s.c_str()); | |
136 | } | |
137 | ||
138 | return wxConvUTF8.cWC2MB(wbuf); | |
139 | } | |
140 | ||
141 | WXDLLIMPEXP_CORE wxCharBuffer | |
142 | wxConvertFromGTK(const wxString& s, wxFontEncoding enc) | |
143 | { | |
144 | // this conversion should never fail as GTK+ always uses UTF-8 internally | |
145 | // so there are no complications here | |
146 | const wxWCharBuffer wbuf(wxConvUTF8.cMB2WC(s.c_str())); | |
147 | if ( enc == wxFONTENCODING_SYSTEM ) | |
148 | return wxConvUI->cWC2MB(wbuf); | |
149 | ||
150 | return wxCSConv(enc).cWC2MB(wbuf); | |
151 | } | |
152 | ||
153 | #endif // !wxUSE_UNICODE | |
154 | ||
155 | // Returns NULL if version is certainly greater or equal than major.minor.micro | |
156 | // Returns string describing the error if version is lower than | |
157 | // major.minor.micro OR it cannot be determined and one should not rely on the | |
158 | // availability of pango version major.minor.micro, nor the non-availability | |
159 | const gchar *wx_pango_version_check (int major, int minor, int micro) | |
160 | { | |
161 | // NOTE: you don't need to use this macro to check for Pango features | |
162 | // added in pango-1.4 or earlier since GTK 2.4 (our minimum requirement | |
163 | // for GTK lib) required pango 1.4... | |
164 | ||
165 | #ifdef PANGO_VERSION_MAJOR | |
166 | if (!gtk_check_version (2,11,0)) | |
167 | { | |
168 | // GTK+ 2.11 requires Pango >= 1.15.3 and pango_version_check | |
169 | // was added in Pango 1.15.2 thus we know for sure the pango lib we're | |
170 | // using has the pango_version_check function: | |
171 | return pango_version_check (major, minor, micro); | |
172 | } | |
173 | ||
174 | return "can't check"; | |
175 | #else // !PANGO_VERSION_MAJOR | |
176 | wxUnusedVar(major); | |
177 | wxUnusedVar(minor); | |
178 | wxUnusedVar(micro); | |
179 | ||
180 | return "too old headers"; | |
181 | #endif | |
182 | } | |
183 | ||
184 | ||
185 | // ---------------------------------------------------------------------------- | |
186 | // subprocess routines | |
187 | // ---------------------------------------------------------------------------- | |
188 | ||
189 | extern "C" { | |
190 | static | |
191 | void GTK_EndProcessDetector(gpointer data, gint source, | |
192 | GdkInputCondition WXUNUSED(condition)) | |
193 | { | |
194 | wxEndProcessData * const | |
195 | proc_data = static_cast<wxEndProcessData *>(data); | |
196 | ||
197 | // child exited, end waiting | |
198 | close(source); | |
199 | ||
200 | // don't call us again! | |
201 | gdk_input_remove(proc_data->tag); | |
202 | ||
203 | wxHandleProcessTermination(proc_data); | |
204 | } | |
205 | } | |
206 | ||
207 | int wxGUIAppTraits::AddProcessCallback(wxEndProcessData *proc_data, int fd) | |
208 | { | |
209 | int tag = gdk_input_add(fd, | |
210 | GDK_INPUT_READ, | |
211 | GTK_EndProcessDetector, | |
212 | (gpointer)proc_data); | |
213 | ||
214 | return tag; | |
215 | } | |
216 | ||
217 | ||
218 | ||
219 | // ---------------------------------------------------------------------------- | |
220 | // wxPlatformInfo-related | |
221 | // ---------------------------------------------------------------------------- | |
222 | ||
223 | wxPortId wxGUIAppTraits::GetToolkitVersion(int *verMaj, int *verMin) const | |
224 | { | |
225 | if ( verMaj ) | |
226 | *verMaj = gtk_major_version; | |
227 | if ( verMin ) | |
228 | *verMin = gtk_minor_version; | |
229 | ||
230 | return wxPORT_GTK; | |
231 | } | |
232 | ||
233 | #if wxUSE_TIMER | |
234 | ||
235 | wxTimerImpl *wxGUIAppTraits::CreateTimerImpl(wxTimer *timer) | |
236 | { | |
237 | return new wxGTKTimerImpl(timer); | |
238 | } | |
239 | ||
240 | #endif // wxUSE_TIMER | |
241 | ||
242 | #if wxUSE_DETECT_SM | |
243 | static wxString GetSM() | |
244 | { | |
245 | class Dpy | |
246 | { | |
247 | public: | |
248 | Dpy() { m_dpy = XOpenDisplay(NULL); } | |
249 | ~Dpy() { if ( m_dpy ) XCloseDisplay(m_dpy); } | |
250 | ||
251 | operator Display *() const { return m_dpy; } | |
252 | private: | |
253 | Display *m_dpy; | |
254 | } dpy; | |
255 | ||
256 | if ( !dpy ) | |
257 | return wxEmptyString; | |
258 | ||
259 | char smerr[256]; | |
260 | char *client_id; | |
261 | SmcConn smc_conn = SmcOpenConnection(NULL, NULL, | |
262 | 999, 999, | |
263 | 0 /* mask */, NULL /* callbacks */, | |
264 | NULL, &client_id, | |
265 | WXSIZEOF(smerr), smerr); | |
266 | ||
267 | if ( !smc_conn ) | |
268 | { | |
269 | wxLogDebug("Failed to connect to session manager: %s", smerr); | |
270 | return wxEmptyString; | |
271 | } | |
272 | ||
273 | char *vendor = SmcVendor(smc_conn); | |
274 | wxString ret = wxString::FromAscii( vendor ); | |
275 | free(vendor); | |
276 | ||
277 | SmcCloseConnection(smc_conn, 0, NULL); | |
278 | free(client_id); | |
279 | ||
280 | return ret; | |
281 | } | |
282 | #endif // wxUSE_DETECT_SM | |
283 | ||
284 | ||
285 | //----------------------------------------------------------------------------- | |
286 | // wxGUIAppTraits | |
287 | //----------------------------------------------------------------------------- | |
288 | ||
289 | wxEventLoopBase *wxGUIAppTraits::CreateEventLoop() | |
290 | { | |
291 | return new wxEventLoop(); | |
292 | } | |
293 | ||
294 | ||
295 | #if wxUSE_INTL | |
296 | void wxGUIAppTraits::SetLocale() | |
297 | { | |
298 | gtk_set_locale(); | |
299 | wxUpdateLocaleIsUtf8(); | |
300 | } | |
301 | #endif | |
302 | ||
303 | #if wxDEBUG_LEVEL && wxUSE_STACKWALKER | |
304 | ||
305 | // private helper class | |
306 | class StackDump : public wxStackWalker | |
307 | { | |
308 | public: | |
309 | StackDump(GtkAssertDialog *dlg) { m_dlg=dlg; } | |
310 | ||
311 | protected: | |
312 | virtual void OnStackFrame(const wxStackFrame& frame) | |
313 | { | |
314 | wxString fncname = frame.GetName(); | |
315 | wxString fncargs = fncname; | |
316 | ||
317 | size_t n = fncname.find(wxT('(')); | |
318 | if (n != wxString::npos) | |
319 | { | |
320 | // remove arguments from function name | |
321 | fncname.erase(n); | |
322 | ||
323 | // remove function name and brackets from arguments | |
324 | fncargs = fncargs.substr(n+1, fncargs.length()-n-2); | |
325 | } | |
326 | else | |
327 | fncargs = wxEmptyString; | |
328 | ||
329 | // append this stack frame's info in the dialog | |
330 | if (!frame.GetFileName().empty() || !fncname.empty()) | |
331 | gtk_assert_dialog_append_stack_frame(m_dlg, | |
332 | fncname.mb_str(), | |
333 | fncargs.mb_str(), | |
334 | frame.GetFileName().mb_str(), | |
335 | frame.GetLine()); | |
336 | } | |
337 | ||
338 | private: | |
339 | GtkAssertDialog *m_dlg; | |
340 | }; | |
341 | ||
342 | // the callback functions must be extern "C" to comply with GTK+ declarations | |
343 | extern "C" | |
344 | { | |
345 | void get_stackframe_callback(StackDump *dump) | |
346 | { | |
347 | // skip over frames up to including wxOnAssert() | |
348 | dump->ProcessFrames(3); | |
349 | } | |
350 | } | |
351 | ||
352 | #endif // wxDEBUG_LEVEL && wxUSE_STACKWALKER | |
353 | ||
354 | bool wxGUIAppTraits::ShowAssertDialog(const wxString& msg) | |
355 | { | |
356 | #if wxDEBUG_LEVEL | |
357 | // we can't show the dialog from another thread | |
358 | if ( wxIsMainThread() ) | |
359 | { | |
360 | // under GTK2 we prefer to use a dialog widget written using directly | |
361 | // in GTK+ as use a dialog written using wxWidgets would need the | |
362 | // wxWidgets idle processing to work correctly which might not be the | |
363 | // case when assert happens | |
364 | GtkWidget *dialog = gtk_assert_dialog_new(); | |
365 | gtk_assert_dialog_set_message(GTK_ASSERT_DIALOG(dialog), msg.mb_str()); | |
366 | ||
367 | #if wxUSE_STACKWALKER | |
368 | // save the current stack ow... | |
369 | StackDump dump(GTK_ASSERT_DIALOG(dialog)); | |
370 | dump.SaveStack(100); // showing more than 100 frames is not very useful | |
371 | ||
372 | // ...but process it only if the user needs it | |
373 | gtk_assert_dialog_set_backtrace_callback | |
374 | ( | |
375 | GTK_ASSERT_DIALOG(dialog), | |
376 | (GtkAssertDialogStackFrameCallback)get_stackframe_callback, | |
377 | &dump | |
378 | ); | |
379 | #endif // wxUSE_STACKWALKER | |
380 | ||
381 | gint result = gtk_dialog_run(GTK_DIALOG (dialog)); | |
382 | bool returnCode = false; | |
383 | switch (result) | |
384 | { | |
385 | case GTK_ASSERT_DIALOG_STOP: | |
386 | wxTrap(); | |
387 | break; | |
388 | case GTK_ASSERT_DIALOG_CONTINUE: | |
389 | // nothing to do | |
390 | break; | |
391 | case GTK_ASSERT_DIALOG_CONTINUE_SUPPRESSING: | |
392 | // no more asserts | |
393 | returnCode = true; | |
394 | break; | |
395 | ||
396 | default: | |
397 | wxFAIL_MSG( wxT("unexpected return code from GtkAssertDialog") ); | |
398 | } | |
399 | ||
400 | gtk_widget_destroy(dialog); | |
401 | return returnCode; | |
402 | } | |
403 | #endif // wxDEBUG_LEVEL | |
404 | ||
405 | return wxAppTraitsBase::ShowAssertDialog(msg); | |
406 | } | |
407 | ||
408 | wxString wxGUIAppTraits::GetDesktopEnvironment() const | |
409 | { | |
410 | wxString de = wxSystemOptions::GetOption(wxT("gtk.desktop")); | |
411 | #if wxUSE_DETECT_SM | |
412 | if ( de.empty() ) | |
413 | { | |
414 | static const wxString s_SM = GetSM(); | |
415 | ||
416 | if (s_SM == wxT("GnomeSM")) | |
417 | de = wxT("GNOME"); | |
418 | else if (s_SM == wxT("KDE")) | |
419 | de = wxT("KDE"); | |
420 | } | |
421 | #endif // wxUSE_DETECT_SM | |
422 | ||
423 | return de; | |
424 | } | |
425 | ||
426 | #ifdef __WXGTK26__ | |
427 | ||
428 | // see the hack below in wxCmdLineParser::GetUsageString(). | |
429 | // TODO: replace this hack with a g_option_group_get_entries() | |
430 | // call as soon as such function exists; | |
431 | // see http://bugzilla.gnome.org/show_bug.cgi?id=431021 for the relative | |
432 | // feature request | |
433 | struct _GOptionGroup | |
434 | { | |
435 | gchar *name; | |
436 | gchar *description; | |
437 | gchar *help_description; | |
438 | ||
439 | GDestroyNotify destroy_notify; | |
440 | gpointer user_data; | |
441 | ||
442 | GTranslateFunc translate_func; | |
443 | GDestroyNotify translate_notify; | |
444 | gpointer translate_data; | |
445 | ||
446 | GOptionEntry *entries; | |
447 | gint n_entries; | |
448 | ||
449 | GOptionParseFunc pre_parse_func; | |
450 | GOptionParseFunc post_parse_func; | |
451 | GOptionErrorFunc error_func; | |
452 | }; | |
453 | ||
454 | wxString wxGetNameFromGtkOptionEntry(const GOptionEntry *opt) | |
455 | { | |
456 | wxString ret; | |
457 | ||
458 | if (opt->short_name) | |
459 | ret << wxT("-") << opt->short_name; | |
460 | if (opt->long_name) | |
461 | { | |
462 | if (!ret.empty()) | |
463 | ret << wxT(", "); | |
464 | ret << wxT("--") << opt->long_name; | |
465 | ||
466 | if (opt->arg_description) | |
467 | ret << wxT("=") << opt->arg_description; | |
468 | } | |
469 | ||
470 | return wxT(" ") + ret; | |
471 | } | |
472 | ||
473 | #endif // __WXGTK26__ | |
474 | ||
475 | wxString | |
476 | wxGUIAppTraits::GetStandardCmdLineOptions(wxArrayString& names, | |
477 | wxArrayString& desc) const | |
478 | { | |
479 | wxString usage; | |
480 | ||
481 | #ifdef __WXGTK26__ | |
482 | if (!gtk_check_version(2,6,0)) | |
483 | { | |
484 | // since GTK>=2.6, we can use the glib_check_version() symbol... | |
485 | ||
486 | // check whether GLib version is greater than 2.6 but also lower than 2.19 | |
487 | // because, as we use the undocumented _GOptionGroup struct, we don't want | |
488 | // to run this code with future versions which might change it (2.19 is the | |
489 | // latest one at the time of this writing) | |
490 | if (!glib_check_version(2,6,0) && glib_check_version(2,20,0)) | |
491 | { | |
492 | usage << _("The following standard GTK+ options are also supported:\n"); | |
493 | ||
494 | // passing true here means that the function can open the default | |
495 | // display while parsing (not really used here anyhow) | |
496 | GOptionGroup *gtkOpts = gtk_get_option_group(true); | |
497 | ||
498 | // WARNING: here we access the internals of GOptionGroup: | |
499 | GOptionEntry *entries = ((_GOptionGroup*)gtkOpts)->entries; | |
500 | unsigned int n_entries = ((_GOptionGroup*)gtkOpts)->n_entries; | |
501 | wxArrayString namesOptions, descOptions; | |
502 | ||
503 | for ( size_t n = 0; n < n_entries; n++ ) | |
504 | { | |
505 | if ( entries[n].flags & G_OPTION_FLAG_HIDDEN ) | |
506 | continue; // skip | |
507 | ||
508 | names.push_back(wxGetNameFromGtkOptionEntry(&entries[n])); | |
509 | ||
510 | const gchar * const entryDesc = entries[n].description; | |
511 | desc.push_back(wxString(entryDesc)); | |
512 | } | |
513 | ||
514 | g_option_group_free (gtkOpts); | |
515 | } | |
516 | } | |
517 | #else | |
518 | wxUnusedVar(names); | |
519 | wxUnusedVar(desc); | |
520 | #endif // __WXGTK26__ | |
521 | ||
522 | return usage; | |
523 | } | |
524 |