1 /////////////////////////////////////////////////////////////////////////////
4 // Author: Robert Roebling
6 // Copyright: (c) 1998 Robert Roebling, Julian Smart
7 // Licence: wxWindows licence
8 /////////////////////////////////////////////////////////////////////////////
10 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
11 #pragma implementation "app.h"
15 // vms_jackets.h should for proper working be included before anything else
16 # include <vms_jackets.h>
17 #undef ConnectionNumber
20 // For compilers that support precompilation, includes "wx.h".
21 #include "wx/wxprec.h"
24 #include "wx/gdicmn.h"
28 #include "wx/memory.h"
30 #include "wx/settings.h"
31 #include "wx/dialog.h"
32 #include "wx/msgdlg.h"
34 #include "wx/filename.h"
35 #include "wx/module.h"
38 #ifdef __WXUNIVERSAL__
39 #include "wx/univ/theme.h"
40 #include "wx/univ/renderer.h"
44 #include "wx/thread.h"
53 // bug in the OpenBSD headers: at least in 3.1 there is no extern "C"
54 // in neither poll.h nor sys/poll.h which results in link errors later
67 // we implement poll() ourselves using select() which is supposed exist in
69 #include <sys/types.h>
72 #endif // HAVE_POLL/!HAVE_POLL
74 #include "wx/gtk/win_gtk.h"
79 //-----------------------------------------------------------------------------
81 //-----------------------------------------------------------------------------
83 bool g_mainThreadLocked
= FALSE
;
84 gint g_pendingTag
= 0;
86 static GtkWidget
*gs_RootWindow
= (GtkWidget
*) NULL
;
88 //-----------------------------------------------------------------------------
90 //-----------------------------------------------------------------------------
94 void wxapp_install_idle_handler();
96 //-----------------------------------------------------------------------------
98 //-----------------------------------------------------------------------------
100 // not static because used by textctrl.cpp
103 bool wxIsInsideYield
= FALSE
;
105 bool wxApp::Yield(bool onlyIfNeeded
)
107 if ( wxIsInsideYield
)
111 wxFAIL_MSG( wxT("wxYield called recursively" ) );
118 if ( !wxThread::IsMain() )
120 // can't call gtk_main_iteration() from other threads like this
123 #endif // wxUSE_THREADS
125 wxIsInsideYield
= TRUE
;
129 // We need to remove idle callbacks or the loop will
131 gtk_idle_remove( m_idleTag
);
136 // disable log flushing from here because a call to wxYield() shouldn't
137 // normally result in message boxes popping up &c
140 while (gtk_events_pending())
141 gtk_main_iteration();
143 // It's necessary to call ProcessIdle() to update the frames sizes which
144 // might have been changed (it also will update other things set from
145 // OnUpdateUI() which is a nice (and desired) side effect). But we
146 // call ProcessIdle() only once since this is not meant for longish
147 // background jobs (controlled by wxIdleEvent::RequestMore() and the
148 // return value of Processidle().
151 // let the logs be flashed again
154 wxIsInsideYield
= FALSE
;
159 //-----------------------------------------------------------------------------
161 //-----------------------------------------------------------------------------
163 void wxApp::WakeUpIdle()
166 if (!wxThread::IsMain())
171 wxapp_install_idle_handler();
174 if (!wxThread::IsMain())
179 //-----------------------------------------------------------------------------
181 //-----------------------------------------------------------------------------
183 // the callback functions must be extern "C" to comply with GTK+ declarations
187 static gint
wxapp_pending_callback( gpointer
WXUNUSED(data
) )
189 if (!wxTheApp
) return TRUE
;
191 // When getting called from GDK's time-out handler
192 // we are no longer within GDK's grab on the GUI
193 // thread so we must lock it here ourselves.
196 // Sent idle event to all who request them.
197 wxTheApp
->ProcessPendingEvents();
201 // Flush the logged messages if any.
203 wxLog::FlushActive();
206 // Release lock again
209 // Return FALSE to indicate that no more idle events are
210 // to be sent (single shot instead of continuous stream)
214 static gint
wxapp_idle_callback( gpointer
WXUNUSED(data
) )
220 // don't generate the idle events while the assert modal dialog is shown,
221 // this completely confuses the apps which don't expect to be reentered
222 // from some safely-looking functions
223 if ( wxTheApp
->IsInAssert() )
225 // But repaint the assertion message if necessary
226 if (wxTopLevelWindows
.GetCount() > 0)
228 wxWindow
* win
= (wxWindow
*) wxTopLevelWindows
.GetLast()->GetData();
230 if (win
->IsKindOf(CLASSINFO(wxMessageDialog
)))
232 if (win
->IsKindOf(CLASSINFO(wxGenericMessageDialog
)))
234 win
->OnInternalIdle();
238 #endif // __WXDEBUG__
240 // When getting called from GDK's time-out handler
241 // we are no longer within GDK's grab on the GUI
242 // thread so we must lock it here ourselves.
245 // Indicate that we are now in idle mode and event handlers
246 // will have to reinstall the idle handler again.
248 wxTheApp
->m_idleTag
= 0;
250 // Send idle event to all who request them as long as
251 // no events have popped up in the event queue.
252 while (wxTheApp
->ProcessIdle() && (gtk_events_pending() == 0))
255 // Release lock again
258 // Return FALSE to indicate that no more idle events are
259 // to be sent (single shot instead of continuous stream).
267 #define wxPollFd pollfd
270 typedef GPollFD wxPollFd
;
272 int wxPoll(wxPollFd
*ufds
, unsigned int nfds
, int timeout
)
274 // convert timeout from ms to struct timeval (s/us)
276 tv_timeout
.tv_sec
= timeout
/1000;
277 tv_timeout
.tv_usec
= (timeout%1000
)*1000;
279 // remember the highest fd used here
282 // and fill the sets for select()
291 for ( i
= 0; i
< nfds
; i
++ )
293 wxASSERT_MSG( ufds
[i
].fd
< FD_SETSIZE
, _T("fd out of range") );
295 if ( ufds
[i
].events
& G_IO_IN
)
296 FD_SET(ufds
[i
].fd
, &readfds
);
298 if ( ufds
[i
].events
& G_IO_PRI
)
299 FD_SET(ufds
[i
].fd
, &exceptfds
);
301 if ( ufds
[i
].events
& G_IO_OUT
)
302 FD_SET(ufds
[i
].fd
, &writefds
);
304 if ( ufds
[i
].fd
> fdMax
)
309 int res
= select(fdMax
, &readfds
, &writefds
, &exceptfds
, &tv_timeout
);
311 // translate the results back
312 for ( i
= 0; i
< nfds
; i
++ )
316 if ( FD_ISSET(ufds
[i
].fd
, &readfds
) )
317 ufds
[i
].revents
|= G_IO_IN
;
319 if ( FD_ISSET(ufds
[i
].fd
, &exceptfds
) )
320 ufds
[i
].revents
|= G_IO_PRI
;
322 if ( FD_ISSET(ufds
[i
].fd
, &writefds
) )
323 ufds
[i
].revents
|= G_IO_OUT
;
329 #endif // HAVE_POLL/!HAVE_POLL
331 static gint
wxapp_poll_func( GPollFD
*ufds
, guint nfds
, gint timeout
)
336 g_mainThreadLocked
= TRUE
;
338 // we rely on the fact that glib GPollFD struct is really just pollfd but
339 // I wonder how wise is this in the long term (VZ)
340 gint res
= wxPoll( (wxPollFd
*) ufds
, nfds
, timeout
);
343 g_mainThreadLocked
= FALSE
;
350 #endif // wxUSE_THREADS
354 void wxapp_install_idle_handler()
356 // GD: this assert is raised when using the thread sample (which works)
357 // so the test is probably not so easy. Can widget callbacks be
358 // triggered from child threads and, if so, for which widgets?
359 // wxASSERT_MSG( wxThread::IsMain() || gs_WakeUpIdle, wxT("attempt to install idle handler from widget callback in child thread (should be exclusively from wxWakeUpIdle)") );
361 wxASSERT_MSG( wxTheApp
->m_idleTag
== 0, wxT("attempt to install idle handler twice") );
365 if (g_pendingTag
== 0)
366 g_pendingTag
= gtk_idle_add_priority( 900, wxapp_pending_callback
, (gpointer
) NULL
);
368 // This routine gets called by all event handlers
369 // indicating that the idle is over. It may also
370 // get called from other thread for sending events
371 // to the main thread (and processing these in
372 // idle time). Very low priority.
373 wxTheApp
->m_idleTag
= gtk_idle_add_priority( 1000, wxapp_idle_callback
, (gpointer
) NULL
);
376 //-----------------------------------------------------------------------------
377 // Access to the root window global
378 //-----------------------------------------------------------------------------
380 GtkWidget
* wxGetRootWindow()
382 if (gs_RootWindow
== NULL
)
384 gs_RootWindow
= gtk_window_new( GTK_WINDOW_TOPLEVEL
);
385 gtk_widget_realize( gs_RootWindow
);
387 return gs_RootWindow
;
390 //-----------------------------------------------------------------------------
392 //-----------------------------------------------------------------------------
394 IMPLEMENT_DYNAMIC_CLASS(wxApp
,wxEvtHandler
)
396 BEGIN_EVENT_TABLE(wxApp
, wxEvtHandler
)
397 EVT_IDLE(wxAppBase::OnIdle
)
403 m_isInAssert
= FALSE
;
404 #endif // __WXDEBUG__
407 wxapp_install_idle_handler();
410 g_main_set_poll_func( wxapp_poll_func
);
413 m_colorCube
= (unsigned char*) NULL
;
415 // this is NULL for a "regular" wxApp, but is set (and freed) by a wxGLApp
416 m_glVisualInfo
= (void *) NULL
;
421 if (m_idleTag
) gtk_idle_remove( m_idleTag
);
423 if (m_colorCube
) free(m_colorCube
);
426 bool wxApp::OnInitGui()
428 if ( !wxAppBase::OnInitGui() )
431 GdkVisual
*visual
= gdk_visual_get_system();
433 // if this is a wxGLApp (derived from wxApp), and we've already
434 // chosen a specific visual, then derive the GdkVisual from that
435 if (m_glVisualInfo
!= NULL
)
438 // seems gtk_widget_set_default_visual no longer exists?
439 GdkVisual
* vis
= gtk_widget_get_default_visual();
441 GdkVisual
* vis
= gdkx_visual_get(
442 ((XVisualInfo
*) m_glVisualInfo
) ->visualid
);
443 gtk_widget_set_default_visual( vis
);
446 GdkColormap
*colormap
= gdk_colormap_new( vis
, FALSE
);
447 gtk_widget_set_default_colormap( colormap
);
452 // On some machines, the default visual is just 256 colours, so
453 // we make sure we get the best. This can sometimes be wasteful.
456 if ((gdk_visual_get_best() != gdk_visual_get_system()) && (m_useBestVisual
))
459 /* seems gtk_widget_set_default_visual no longer exists? */
460 GdkVisual
* vis
= gtk_widget_get_default_visual();
462 GdkVisual
* vis
= gdk_visual_get_best();
463 gtk_widget_set_default_visual( vis
);
466 GdkColormap
*colormap
= gdk_colormap_new( vis
, FALSE
);
467 gtk_widget_set_default_colormap( colormap
);
472 // Nothing to do for 15, 16, 24, 32 bit displays
473 if (visual
->depth
> 8) return TRUE
;
475 // initialize color cube for 8-bit color reduction dithering
477 GdkColormap
*cmap
= gtk_widget_get_default_colormap();
479 m_colorCube
= (unsigned char*)malloc(32 * 32 * 32);
481 for (int r
= 0; r
< 32; r
++)
483 for (int g
= 0; g
< 32; g
++)
485 for (int b
= 0; b
< 32; b
++)
487 int rr
= (r
<< 3) | (r
>> 2);
488 int gg
= (g
<< 3) | (g
>> 2);
489 int bb
= (b
<< 3) | (b
>> 2);
493 GdkColor
*colors
= cmap
->colors
;
498 for (int i
= 0; i
< cmap
->size
; i
++)
500 int rdiff
= ((rr
<< 8) - colors
[i
].red
);
501 int gdiff
= ((gg
<< 8) - colors
[i
].green
);
502 int bdiff
= ((bb
<< 8) - colors
[i
].blue
);
503 int sum
= ABS (rdiff
) + ABS (gdiff
) + ABS (bdiff
);
506 index
= i
; max
= sum
;
512 // assume 8-bit true or static colors. this really exists
513 GdkVisual
* vis
= gdk_colormap_get_visual( cmap
);
514 index
= (r
>> (5 - vis
->red_prec
)) << vis
->red_shift
;
515 index
|= (g
>> (5 - vis
->green_prec
)) << vis
->green_shift
;
516 index
|= (b
>> (5 - vis
->blue_prec
)) << vis
->blue_shift
;
518 m_colorCube
[ (r
*1024) + (g
*32) + b
] = index
;
526 GdkVisual
*wxApp::GetGdkVisual()
528 GdkVisual
*visual
= NULL
;
531 visual
= gdkx_visual_get( ((XVisualInfo
*) m_glVisualInfo
)->visualid
);
533 visual
= gdk_window_get_visual( wxGetRootWindow()->window
);
540 bool wxApp::Initialize(int& argc
, wxChar
**argv
)
543 // GTK 1.2 up to version 1.2.3 has broken threads
544 if ((gtk_major_version
== 1) &&
545 (gtk_minor_version
== 2) &&
546 (gtk_micro_version
< 4))
548 printf( "wxWindows warning: GUI threading disabled due to outdated GTK version\n" );
552 if (!g_thread_supported())
555 #endif // wxUSE_THREADS
559 // We should have the wxUSE_WCHAR_T test on the _outside_
561 #if defined(__WXGTK20__)
562 // gtk+ 2.0 supports Unicode through UTF-8 strings
563 wxConvCurrent
= &wxConvUTF8
;
566 wxConvCurrent
= &wxConvLocal
;
568 #else // !wxUSE_WCHAR_T
570 wxConvCurrent
= (wxMBConv
*) NULL
;
571 #endif // wxUSE_WCHAR_T/!wxUSE_WCHAR_T
574 // gtk_init() wants UTF-8, not wchar_t, so convert
576 char **argvGTK
= new char *[argc
+ 1];
577 for ( i
= 0; i
< argc
; i
++ )
579 argvGTK
[i
] = wxStrdupA(wxConvUTF8
.cWX2MB(argv
[i
]));
582 argvGTK
[argc
] = NULL
;
585 gtk_init( &argcGTK
, &argvGTK
);
587 if ( argcGTK
!= argc
)
589 // we have to drop the parameters which were consumed by GTK+
590 for ( i
= 0; i
< argcGTK
; i
++ )
592 while ( strcmp(wxConvUTF8
.cWX2MB(argv
[i
]), argvGTK
[i
]) != 0 )
594 memmove(argv
+ i
, argv
+ i
+ 1, argc
- i
);
600 //else: gtk_init() didn't modify our parameters
603 for ( i
= 0; i
< argcGTK
; i
++ )
609 #else // !wxUSE_UNICODE
610 // gtk_init() shouldn't actually change argv itself (just its contents) so
611 // it's ok to pass pointer to it
612 gtk_init( &argc
, &argv
);
613 #endif // wxUSE_UNICODE/!wxUSE_UNICODE
615 // we can not enter threads before gtk_init is done
618 if ( !wxAppBase::Initialize(argc
, argv
) )
625 wxSetDetectableAutoRepeat( TRUE
);
628 wxFont::SetDefaultEncoding(wxLocale::GetSystemEncoding());
636 void wxApp::CleanUp()
640 wxAppBase::CleanUp();
645 void wxApp::OnAssert(const wxChar
*file
, int line
, const wxChar
* cond
, const wxChar
*msg
)
649 wxAppBase::OnAssert(file
, line
, cond
, msg
);
651 m_isInAssert
= FALSE
;
654 #endif // __WXDEBUG__