wxDC::SetFont can now handle invalid font and doesn't assert anymore (other ports...

[wxWidgets.git] / src / motif / app.cpp

diff --git a/src/motif/app.cpp b/src/motif/app.cpp
index 53b01e0f35c5158c8ec43afb52b7d55a2b55856a..fbe1d763fc41a8f652af4312caaba43c49105762 100644 (file)
--- 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"
@@ -138,17 +143,7 @@ void wxApp::CleanUp()
 
     // Destroy all GDI lists, etc.
 
-    delete wxTheBrushList;
-    wxTheBrushList = NULL;
-
-    delete wxThePenList;
-    wxThePenList = NULL;
-
-    delete wxTheFontList;
-    wxTheFontList = NULL;
-
-    delete wxTheBitmapList;
-    wxTheBitmapList = NULL;
+    wxDeleteStockLists();
 
     delete wxTheColourDatabase;
     wxTheColourDatabase = NULL;
@@ -349,49 +344,49 @@ 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));
 #endif // DEBUG
 
-       if (CheckForAccelerator(_event))
-       {
+    if (CheckForAccelerator(_event))
+    {
             // Do nothing! We intercepted and processed the event as an
             // accelerator.
             return;
-       }
+    }
 #if 1
         // It seemed before that this hack was redundant and
         // key down events were being generated by wxCanvasInputEvent.
         // But no longer - why ???
         //
-       else if (CheckForKeyDown(_event))
-       {
+    else if (CheckForKeyDown(_event))
+    {
             // We intercepted and processed the key down event
             return;
-       }
+    }
 #endif
-       else
-       {
+    else
+    {
             XtDispatchEvent(event);
-           return;
-       }
+        return;
+    }
     }
     else if (event->type == KeyRelease)
     {
         // TODO: work out why we still need this !  -michael
         //
         if (CheckForKeyUp(_event))
-       {
-           // We intercepted and processed the key up event
-           return;
-       }
-       else
-       {
-           XtDispatchEvent(event);
-           return;
-       }
+    {
+        // We intercepted and processed the key up event
+        return;
+    }
+    else
+    {
+        XtDispatchEvent(event);
+        return;
+    }
     }
     else if (event->type == PropertyNotify)
     {
@@ -477,13 +472,20 @@ 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();
@@ -665,20 +667,20 @@ bool wxApp::CheckForKeyDown(WXEvent* event)
     if (xEvent->xany.type == KeyPress)
     {
         Widget widget = XtWindowToWidget((Display*) wxGetDisplay(),
-                                        xEvent->xany.window);
-       wxWindow* win = NULL;
+                     xEvent->xany.window);
+    wxWindow* win = NULL;
 
-       // Find the first wxWindow that corresponds to this event window
-       while (widget && !(win = wxGetWindowFromTable(widget)))
+    // Find the first wxWindow that corresponds to this event window
+    while (widget && !(win = wxGetWindowFromTable(widget)))
             widget = XtParent(widget);
 
-       if (!widget || !win)
+    if (!widget || !win)
             return FALSE;
 
-       wxKeyEvent keyEvent(wxEVT_KEY_DOWN);
-       wxTranslateKeyEvent(keyEvent, win, (Widget) 0, xEvent);
+    wxKeyEvent keyEvent(wxEVT_KEY_DOWN);
+    wxTranslateKeyEvent(keyEvent, win, (Widget) 0, xEvent);
 
-       return win->ProcessEvent( keyEvent );
+    return win->ProcessEvent( keyEvent );
     }
 
     return FALSE;
@@ -690,20 +692,20 @@ bool wxApp::CheckForKeyUp(WXEvent* event)
     if (xEvent->xany.type == KeyRelease)
     {
         Widget widget = XtWindowToWidget((Display*) wxGetDisplay(),
-                                        xEvent->xany.window);
-       wxWindow* win = NULL;
+                         xEvent->xany.window);
+        wxWindow* win = NULL;
 
-       // Find the first wxWindow that corresponds to this event window
-       while (widget && !(win = wxGetWindowFromTable(widget)))
-            widget = XtParent(widget);
+        // Find the first wxWindow that corresponds to this event window
+        while (widget && !(win = wxGetWindowFromTable(widget)))
+                widget = XtParent(widget);
 
-       if (!widget || !win)
-            return FALSE;
+        if (!widget || !win)
+                return FALSE;
 
-       wxKeyEvent keyEvent(wxEVT_KEY_UP);
-       wxTranslateKeyEvent(keyEvent, win, (Widget) 0, xEvent);
+        wxKeyEvent keyEvent(wxEVT_KEY_UP);
+        wxTranslateKeyEvent(keyEvent, win, (Widget) 0, xEvent);
 
-       return win->ProcessEvent( keyEvent );
+        return win->ProcessEvent( keyEvent );
     }
 
     return FALSE;
@@ -724,15 +726,27 @@ void wxExit()
 }
 
 // Yield to other processes
-bool wxYield()
+
+bool wxApp::Yield(bool onlyIfNeeded)
 {
+    bool s_inYield = FALSE;
+
+    if ( s_inYield )
+    {
+        if ( !onlyIfNeeded )
+        {
+            wxFAIL_MSG( wxT("wxYield called recursively" ) );
+        }
+
+        return FALSE;
+    }
+
+    s_inYield = TRUE;
+
     while (wxTheApp && wxTheApp->Pending())
         wxTheApp->Dispatch();
 
-    // VZ: is it the same as this (taken from old wxExecute)?
-#if 0
-    XtAppProcessEvent((XtAppContext) wxTheApp->GetAppContext(), XtIMAll);
-#endif
+    s_inYield = FALSE;
 
     return TRUE;
 }