X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/ad81651f00edc6f489d9b6a0839d316a964fd521..6c5ac6e1f1a5a3400b51f3bf61d061cf3ed3857a:/src/motif/app.cpp

diff --git a/src/motif/app.cpp b/src/motif/app.cpp
index 916c8b9419..fa1fd15f66 100644
--- a/src/motif/app.cpp
+++ b/src/motif/app.cpp
@@ -13,6 +13,11 @@
     #pragma implementation "app.h"
 #endif
 
+#ifdef __VMS
+#define XtParent XTPARENT
+#define XtDisplay XTDISPLAY
+#endif
+
 #include "wx/frame.h"
 #include "wx/app.h"
 #include "wx/utils.h"
@@ -68,6 +73,18 @@ BEGIN_EVENT_TABLE(wxApp, wxEvtHandler)
     EVT_IDLE(wxApp::OnIdle)
 END_EVENT_TABLE()
 
+#ifdef __WXDEBUG__
+    typedef int (*XErrorHandlerFunc)(Display *, XErrorEvent *);
+
+    XErrorHandlerFunc gs_pfnXErrorHandler = 0;
+
+    static int wxXErrorHandler(Display *dpy, XErrorEvent *xevent)
+    {
+        // just forward to the default handler for now
+        return gs_pfnXErrorHandler(dpy, xevent);
+    }
+#endif // __WXDEBUG__
+
 long wxApp::sm_lastMessageTime = 0;
 
 bool wxApp::Initialize()
@@ -337,7 +354,7 @@ void wxApp::ProcessXEvent(WXEvent* _event)
 
     if (event->type == KeyPress)
     {
-#ifdef __WXDEBUG__
+#if 0 // def __WXDEBUG__
         Widget widget = XtWindowToWidget(event->xany.display, event->xany.window);
         wxLogDebug("Got key press event for 0x%08x (parent = 0x%08x)",
                    widget, XtParent(widget));
@@ -465,13 +482,20 @@ void wxApp::OnIdle(wxIdleEvent& event)
 
     inOnIdle = TRUE;
 
-    // 'Garbage' collection of windows deleted with Close().
-    DeletePendingObjects();
+    // If there are pending events, we must process them: pending events
+    // are either events to the threads other than main or events posted
+    // with wxPostEvent() functions
+    // GRG: I have moved this here so that all pending events are processed
+    //   before starting to delete any objects. This behaves better (in
+    //   particular, wrt wxPostEvent) and is coherent with wxGTK's current
+    //   behaviour. Also removed the '#if wxUSE_THREADS' around it.
+    //  Changed Mar/2000 before 2.1.14
 
-#if wxUSE_THREADS
     // Flush pending events.
     ProcessPendingEvents();
-#endif
+
+    // 'Garbage' collection of windows deleted with Close().
+    DeletePendingObjects();
 
     // flush the logged messages if any
     wxLog *pLog = wxLog::GetActiveTarget();
@@ -575,6 +599,11 @@ bool wxApp::OnInitGui()
     }
     m_initialDisplay = (WXDisplay*) dpy;
 
+#ifdef __WXDEBUG__
+    // install the X error handler
+    gs_pfnXErrorHandler = XSetErrorHandler(wxXErrorHandler);
+#endif // __WXDEBUG__
+
     wxTheApp->m_topLevelWidget = (WXWidget) XtAppCreateShell((String)NULL, (const char*) wxTheApp->GetClassName(),
         applicationShellWidgetClass,dpy,
         NULL,0) ;
@@ -707,8 +736,18 @@ void wxExit()
 }
 
 // Yield to other processes
+
+static bool gs_inYield = FALSE;
+
 bool wxYield()
 {
+#ifdef __WXDEBUG__    
+    if (gs_inYield)
+        wxFAIL_MSG( wxT("wxYield called recursively" ) );
+#endif
+    
+    gs_inYield = TRUE;
+
     while (wxTheApp && wxTheApp->Pending())
         wxTheApp->Dispatch();
 
@@ -717,9 +756,21 @@ bool wxYield()
     XtAppProcessEvent((XtAppContext) wxTheApp->GetAppContext(), XtIMAll);
 #endif
 
+    gs_inYield = FALSE;
+
     return TRUE;
 }
 
+// Yield to incoming messages; but fail silently if recursion is detected.
+bool wxYieldIfNeeded()
+{
+    if (gs_inYield)
+        return FALSE;
+        
+    return wxYield();
+}
+
+
 // TODO use XmGetPixmap (?) to get the really standard icons!
 
 #include "wx/generic/info.xpm"