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"
42 #ifdef __WXUNIVERSAL__
43 #include "wx/univ/theme.h"
44 #include "wx/univ/renderer.h"
48 #include "wx/thread.h"
57 // bug in the OpenBSD headers: at least in 3.1 there is no extern "C"
58 // in neither poll.h nor sys/poll.h which results in link errors later
71 // we implement poll() ourselves using select() which is supposed exist in
73 #include <sys/types.h>
76 #endif // HAVE_POLL/!HAVE_POLL
78 #include "wx/gtk/win_gtk.h"
83 //-----------------------------------------------------------------------------
85 //-----------------------------------------------------------------------------
87 bool g_mainThreadLocked
= FALSE
;
88 gint g_pendingTag
= 0;
90 static GtkWidget
*gs_RootWindow
= (GtkWidget
*) NULL
;
92 //-----------------------------------------------------------------------------
94 //-----------------------------------------------------------------------------
98 void wxapp_install_idle_handler();
100 //-----------------------------------------------------------------------------
102 //-----------------------------------------------------------------------------
104 // not static because used by textctrl.cpp
107 bool wxIsInsideYield
= FALSE
;
109 bool wxApp::Yield(bool onlyIfNeeded
)
111 if ( wxIsInsideYield
)
115 wxFAIL_MSG( wxT("wxYield called recursively" ) );
122 if ( !wxThread::IsMain() )
124 // can't call gtk_main_iteration() from other threads like this
127 #endif // wxUSE_THREADS
129 wxIsInsideYield
= TRUE
;
133 // We need to remove idle callbacks or the loop will
135 gtk_idle_remove( m_idleTag
);
140 // disable log flushing from here because a call to wxYield() shouldn't
141 // normally result in message boxes popping up &c
144 while (gtk_events_pending())
145 gtk_main_iteration();
147 // It's necessary to call ProcessIdle() to update the frames sizes which
148 // might have been changed (it also will update other things set from
149 // OnUpdateUI() which is a nice (and desired) side effect). But we
150 // call ProcessIdle() only once since this is not meant for longish
151 // background jobs (controlled by wxIdleEvent::RequestMore() and the
152 // return value of Processidle().
155 // let the logs be flashed again
158 wxIsInsideYield
= FALSE
;
163 //-----------------------------------------------------------------------------
165 //-----------------------------------------------------------------------------
167 void wxApp::WakeUpIdle()
170 if (!wxThread::IsMain())
175 wxapp_install_idle_handler();
178 if (!wxThread::IsMain())
183 //-----------------------------------------------------------------------------
185 //-----------------------------------------------------------------------------
187 // the callback functions must be extern "C" to comply with GTK+ declarations
191 static gint
wxapp_pending_callback( gpointer
WXUNUSED(data
) )
193 if (!wxTheApp
) return TRUE
;
195 // When getting called from GDK's time-out handler
196 // we are no longer within GDK's grab on the GUI
197 // thread so we must lock it here ourselves.
200 // Sent idle event to all who request them.
201 wxTheApp
->ProcessPendingEvents();
205 // Flush the logged messages if any.
207 wxLog::FlushActive();
210 // Release lock again
213 // Return FALSE to indicate that no more idle events are
214 // to be sent (single shot instead of continuous stream)
218 static gint
wxapp_idle_callback( gpointer
WXUNUSED(data
) )
224 // don't generate the idle events while the assert modal dialog is shown,
225 // this completely confuses the apps which don't expect to be reentered
226 // from some safely-looking functions
227 if ( wxTheApp
->IsInAssert() )
229 // But repaint the assertion message if necessary
230 if (wxTopLevelWindows
.GetCount() > 0)
232 wxWindow
* win
= (wxWindow
*) wxTopLevelWindows
.GetLast()->GetData();
234 if (win
->IsKindOf(CLASSINFO(wxMessageDialog
)))
236 if (win
->IsKindOf(CLASSINFO(wxGenericMessageDialog
)))
238 win
->OnInternalIdle();
242 #endif // __WXDEBUG__
244 // When getting called from GDK's time-out handler
245 // we are no longer within GDK's grab on the GUI
246 // thread so we must lock it here ourselves.
249 // Indicate that we are now in idle mode and event handlers
250 // will have to reinstall the idle handler again.
252 wxTheApp
->m_idleTag
= 0;
254 // Send idle event to all who request them as long as
255 // no events have popped up in the event queue.
256 while (wxTheApp
->ProcessIdle() && (gtk_events_pending() == 0))
259 // Release lock again
262 // Return FALSE to indicate that no more idle events are
263 // to be sent (single shot instead of continuous stream).
271 #define wxPollFd pollfd
274 typedef GPollFD wxPollFd
;
276 int wxPoll(wxPollFd
*ufds
, unsigned int nfds
, int timeout
)
278 // convert timeout from ms to struct timeval (s/us)
280 tv_timeout
.tv_sec
= timeout
/1000;
281 tv_timeout
.tv_usec
= (timeout%1000
)*1000;
283 // remember the highest fd used here
286 // and fill the sets for select()
295 for ( i
= 0; i
< nfds
; i
++ )
297 wxASSERT_MSG( ufds
[i
].fd
< FD_SETSIZE
, _T("fd out of range") );
299 if ( ufds
[i
].events
& G_IO_IN
)
300 FD_SET(ufds
[i
].fd
, &readfds
);
302 if ( ufds
[i
].events
& G_IO_PRI
)
303 FD_SET(ufds
[i
].fd
, &exceptfds
);
305 if ( ufds
[i
].events
& G_IO_OUT
)
306 FD_SET(ufds
[i
].fd
, &writefds
);
308 if ( ufds
[i
].fd
> fdMax
)
313 int res
= select(fdMax
, &readfds
, &writefds
, &exceptfds
, &tv_timeout
);
315 // translate the results back
316 for ( i
= 0; i
< nfds
; i
++ )
320 if ( FD_ISSET(ufds
[i
].fd
, &readfds
) )
321 ufds
[i
].revents
|= G_IO_IN
;
323 if ( FD_ISSET(ufds
[i
].fd
, &exceptfds
) )
324 ufds
[i
].revents
|= G_IO_PRI
;
326 if ( FD_ISSET(ufds
[i
].fd
, &writefds
) )
327 ufds
[i
].revents
|= G_IO_OUT
;
333 #endif // HAVE_POLL/!HAVE_POLL
335 static gint
wxapp_poll_func( GPollFD
*ufds
, guint nfds
, gint timeout
)
340 g_mainThreadLocked
= TRUE
;
342 // we rely on the fact that glib GPollFD struct is really just pollfd but
343 // I wonder how wise is this in the long term (VZ)
344 gint res
= wxPoll( (wxPollFd
*) ufds
, nfds
, timeout
);
347 g_mainThreadLocked
= FALSE
;
354 #endif // wxUSE_THREADS
358 void wxapp_install_idle_handler()
360 // GD: this assert is raised when using the thread sample (which works)
361 // so the test is probably not so easy. Can widget callbacks be
362 // triggered from child threads and, if so, for which widgets?
363 // wxASSERT_MSG( wxThread::IsMain() || gs_WakeUpIdle, wxT("attempt to install idle handler from widget callback in child thread (should be exclusively from wxWakeUpIdle)") );
365 wxASSERT_MSG( wxTheApp
->m_idleTag
== 0, wxT("attempt to install idle handler twice") );
369 if (g_pendingTag
== 0)
370 g_pendingTag
= gtk_idle_add_priority( 900, wxapp_pending_callback
, (gpointer
) NULL
);
372 // This routine gets called by all event handlers
373 // indicating that the idle is over. It may also
374 // get called from other thread for sending events
375 // to the main thread (and processing these in
376 // idle time). Very low priority.
377 wxTheApp
->m_idleTag
= gtk_idle_add_priority( 1000, wxapp_idle_callback
, (gpointer
) NULL
);
380 //-----------------------------------------------------------------------------
381 // Access to the root window global
382 //-----------------------------------------------------------------------------
384 GtkWidget
* wxGetRootWindow()
386 if (gs_RootWindow
== NULL
)
388 gs_RootWindow
= gtk_window_new( GTK_WINDOW_TOPLEVEL
);
389 gtk_widget_realize( gs_RootWindow
);
391 return gs_RootWindow
;
394 //-----------------------------------------------------------------------------
396 //-----------------------------------------------------------------------------
398 IMPLEMENT_DYNAMIC_CLASS(wxApp
,wxEvtHandler
)
400 BEGIN_EVENT_TABLE(wxApp
, wxEvtHandler
)
401 EVT_IDLE(wxAppBase::OnIdle
)
407 m_isInAssert
= FALSE
;
408 #endif // __WXDEBUG__
411 wxapp_install_idle_handler();
414 g_main_set_poll_func( wxapp_poll_func
);
417 m_colorCube
= (unsigned char*) NULL
;
419 // this is NULL for a "regular" wxApp, but is set (and freed) by a wxGLApp
420 m_glVisualInfo
= (void *) NULL
;
425 if (m_idleTag
) gtk_idle_remove( m_idleTag
);
427 if (m_colorCube
) free(m_colorCube
);
430 bool wxApp::OnInitGui()
432 if ( !wxAppBase::OnInitGui() )
435 GdkVisual
*visual
= gdk_visual_get_system();
437 // if this is a wxGLApp (derived from wxApp), and we've already
438 // chosen a specific visual, then derive the GdkVisual from that
439 if (m_glVisualInfo
!= NULL
)
442 // seems gtk_widget_set_default_visual no longer exists?
443 GdkVisual
* vis
= gtk_widget_get_default_visual();
445 GdkVisual
* vis
= gdkx_visual_get(
446 ((XVisualInfo
*) m_glVisualInfo
) ->visualid
);
447 gtk_widget_set_default_visual( vis
);
450 GdkColormap
*colormap
= gdk_colormap_new( vis
, FALSE
);
451 gtk_widget_set_default_colormap( colormap
);
456 // On some machines, the default visual is just 256 colours, so
457 // we make sure we get the best. This can sometimes be wasteful.
460 if ((gdk_visual_get_best() != gdk_visual_get_system()) && (m_useBestVisual
))
463 /* seems gtk_widget_set_default_visual no longer exists? */
464 GdkVisual
* vis
= gtk_widget_get_default_visual();
466 GdkVisual
* vis
= gdk_visual_get_best();
467 gtk_widget_set_default_visual( vis
);
470 GdkColormap
*colormap
= gdk_colormap_new( vis
, FALSE
);
471 gtk_widget_set_default_colormap( colormap
);
476 // Nothing to do for 15, 16, 24, 32 bit displays
477 if (visual
->depth
> 8) return TRUE
;
479 // initialize color cube for 8-bit color reduction dithering
481 GdkColormap
*cmap
= gtk_widget_get_default_colormap();
483 m_colorCube
= (unsigned char*)malloc(32 * 32 * 32);
485 for (int r
= 0; r
< 32; r
++)
487 for (int g
= 0; g
< 32; g
++)
489 for (int b
= 0; b
< 32; b
++)
491 int rr
= (r
<< 3) | (r
>> 2);
492 int gg
= (g
<< 3) | (g
>> 2);
493 int bb
= (b
<< 3) | (b
>> 2);
497 GdkColor
*colors
= cmap
->colors
;
502 for (int i
= 0; i
< cmap
->size
; i
++)
504 int rdiff
= ((rr
<< 8) - colors
[i
].red
);
505 int gdiff
= ((gg
<< 8) - colors
[i
].green
);
506 int bdiff
= ((bb
<< 8) - colors
[i
].blue
);
507 int sum
= ABS (rdiff
) + ABS (gdiff
) + ABS (bdiff
);
510 index
= i
; max
= sum
;
516 // assume 8-bit true or static colors. this really exists
517 GdkVisual
* vis
= gdk_colormap_get_visual( cmap
);
518 index
= (r
>> (5 - vis
->red_prec
)) << vis
->red_shift
;
519 index
|= (g
>> (5 - vis
->green_prec
)) << vis
->green_shift
;
520 index
|= (b
>> (5 - vis
->blue_prec
)) << vis
->blue_shift
;
522 m_colorCube
[ (r
*1024) + (g
*32) + b
] = index
;
530 GdkVisual
*wxApp::GetGdkVisual()
532 GdkVisual
*visual
= NULL
;
535 visual
= gdkx_visual_get( ((XVisualInfo
*) m_glVisualInfo
)->visualid
);
537 visual
= gdk_window_get_visual( wxGetRootWindow()->window
);
544 bool wxApp::Initialize(int& argc
, wxChar
**argv
)
547 // GTK 1.2 up to version 1.2.3 has broken threads
548 if ((gtk_major_version
== 1) &&
549 (gtk_minor_version
== 2) &&
550 (gtk_micro_version
< 4))
552 printf( "wxWindows warning: GUI threading disabled due to outdated GTK version\n" );
556 if (!g_thread_supported())
559 #endif // wxUSE_THREADS
563 // We should have the wxUSE_WCHAR_T test on the _outside_
565 #if defined(__WXGTK20__)
566 // gtk+ 2.0 supports Unicode through UTF-8 strings
567 wxConvCurrent
= &wxConvUTF8
;
570 wxConvCurrent
= &wxConvLocal
;
572 #else // !wxUSE_WCHAR_T
574 wxConvCurrent
= (wxMBConv
*) NULL
;
575 #endif // wxUSE_WCHAR_T/!wxUSE_WCHAR_T
578 // gtk_init() wants UTF-8, not wchar_t, so convert
580 char **argvGTK
= new char *[argc
+ 1];
581 for ( i
= 0; i
< argc
; i
++ )
583 argvGTK
[i
] = wxStrdupA(wxConvUTF8
.cWX2MB(argv
[i
]));
586 argvGTK
[argc
] = NULL
;
591 gpe_application_init( &argcGTK
, &argvGTK
);
593 gtk_init( &argcGTK
, &argvGTK
);
596 if ( argcGTK
!= argc
)
598 // we have to drop the parameters which were consumed by GTK+
599 for ( i
= 0; i
< argcGTK
; i
++ )
601 while ( strcmp(wxConvUTF8
.cWX2MB(argv
[i
]), argvGTK
[i
]) != 0 )
603 memmove(argv
+ i
, argv
+ i
+ 1, argc
- i
);
609 //else: gtk_init() didn't modify our parameters
612 for ( i
= 0; i
< argcGTK
; i
++ )
618 #else // !wxUSE_UNICODE
619 // gtk_init() shouldn't actually change argv itself (just its contents) so
620 // it's ok to pass pointer to it
621 gtk_init( &argc
, &argv
);
622 #endif // wxUSE_UNICODE/!wxUSE_UNICODE
624 // we can not enter threads before gtk_init is done
627 if ( !wxAppBase::Initialize(argc
, argv
) )
634 wxSetDetectableAutoRepeat( TRUE
);
637 wxFont::SetDefaultEncoding(wxLocale::GetSystemEncoding());
645 void wxApp::CleanUp()
649 wxAppBase::CleanUp();
654 void wxApp::OnAssert(const wxChar
*file
, int line
, const wxChar
* cond
, const wxChar
*msg
)
658 wxAppBase::OnAssert(file
, line
, cond
, msg
);
660 m_isInAssert
= FALSE
;
663 #endif // __WXDEBUG__