setting clipping correctly

[wxWidgets.git] / src / cocoa / evtloop.mm

diff --git a/src/cocoa/evtloop.mm b/src/cocoa/evtloop.mm
index bd1611587bf2d4bc245266f4e67d6b409252f968..add5528e947aca0685ca803a963e545ebb6f742f 100644 (file)
--- a/src/cocoa/evtloop.mm
+++ b/src/cocoa/evtloop.mm
@@ -6,17 +6,20 @@
 // Created:     2003/10/02
 // RCS-ID:      $Id$
 // Copyright:   (c) 2003 David Elliott <dfe@cox.net>
-// License:     wxWindows licence
+// License:     wxWidgets licence
 ///////////////////////////////////////////////////////////////////////////////
 
 #include "wx/wxprec.h"
 #ifndef WX_PRECOMP
     #include "wx/log.h"
+    #include "wx/app.h"
 #endif //WX_PRECOMP
 
 #include "wx/evtloop.h"
 
 #import <AppKit/NSApplication.h>
+#import <AppKit/NSEvent.h>
+#import <Foundation/NSRunLoop.h>
 
 // ========================================================================
 // wxEventLoopImpl
@@ -45,25 +48,17 @@ private:
 // wxEventLoop running and exiting
 // ----------------------------------------------------------------------------
 
-wxEventLoop *wxEventLoop::ms_activeLoop = NULL;
-
 wxEventLoop::~wxEventLoop()
 {
     wxASSERT_MSG( !m_impl, _T("should have been deleted in Run()") );
 }
 
-bool wxEventLoop::IsRunning() const
-{
-    return m_impl;
-}
-
 int wxEventLoop::Run()
 {
     // event loops are not recursive, you need to create another loop!
     wxCHECK_MSG( !IsRunning(), -1, _T("can't reenter a message loop") );
 
-    wxEventLoop *oldLoop = ms_activeLoop;
-    ms_activeLoop = this;
+    wxEventLoopActivator activate(this);
 
     m_impl = new wxEventLoopImpl;
 
@@ -73,8 +68,6 @@ int wxEventLoop::Run()
     delete m_impl;
     m_impl = NULL;
 
-    ms_activeLoop = oldLoop;
-
     return exitcode;
 }
 
@@ -85,7 +78,20 @@ void wxEventLoop::Exit(int rc)
     m_impl->SetExitCode(rc);
 
     NSApplication *cocoaApp = [NSApplication sharedApplication];
-    wxLogDebug("wxEventLoop::Exit isRunning=%d", (int)[cocoaApp isRunning]);
+    wxLogTrace(wxTRACE_COCOA,wxT("wxEventLoop::Exit isRunning=%d"), (int)[cocoaApp isRunning]);
+    wxTheApp->WakeUpIdle();
+    /* Notes:
+    If we're being called from idle time (which occurs while checking the
+    queue for new events) there may or may not be any events in the queue.
+    In order to successfully stop the event loop, at least one event must
+    be processed.  To ensure this always happens, WakeUpIdle is called.
+
+    If the application was active when closed then this is unnecessary
+    because it would receive a deactivate event anyway.  However, if the
+    application was not active when closed, then no events would be
+    added to the queue by Cocoa and thus the application would wait
+    indefinitely for the next event.
+    */
     [cocoaApp stop: cocoaApp];
 }
 
@@ -95,12 +101,30 @@ void wxEventLoop::Exit(int rc)
 
 bool wxEventLoop::Pending() const
 {
-    return 0;
+    // a pointer to the event is returned if there is one, or nil if not
+    return [[NSApplication sharedApplication]
+            nextEventMatchingMask: NSAnyEventMask
+            untilDate: nil /* Equivalent to [NSDate distantPast] */
+            inMode: NSDefaultRunLoopMode
+            dequeue: NO];
 }
 
 bool wxEventLoop::Dispatch()
 {
+    // This check is required by wxGTK but probably not really for wxCocoa
+    // Keep it here to encourage developers to write cross-platform code
     wxCHECK_MSG( IsRunning(), false, _T("can't call Dispatch() if not running") );
+    NSApplication *cocoaApp = [NSApplication sharedApplication];
+    // Block to retrieve an event then send it
+    if(NSEvent *event = [cocoaApp
+                nextEventMatchingMask:NSAnyEventMask
+                untilDate:[NSDate distantFuture]
+                inMode:NSDefaultRunLoopMode
+                dequeue: YES])
+    {
+        [cocoaApp sendEvent: event];
+        return true;
+    }
     return false;
 }