Document _ITEM_VALUE_CHANGED and implmement it equally as being sent from valueChange...

[wxWidgets.git] / src / dfb / evtloop.cpp

diff --git a/src/dfb/evtloop.cpp b/src/dfb/evtloop.cpp
index 647e52ec7b0fe5b4565b620bab68bb82a5f91c03..9581c327f1d5aaa4c650f89551136ce5210a8edc 100644 (file)
--- a/src/dfb/evtloop.cpp
+++ b/src/dfb/evtloop.cpp
@@ -25,10 +25,13 @@
     #include "wx/app.h"
 #endif
 
-#include "wx/timer.h"
+#include "wx/thread.h"
+#include "wx/generic/private/timer.h"
+#include "wx/private/selectdispatcher.h"
 #include "wx/dfb/private.h"
+#include "wx/nonownedwnd.h"
 
-#define TRACE_EVENTS _T("events")
+#define TRACE_EVENTS "events"
 
 // ===========================================================================
 // implementation
@@ -38,23 +41,28 @@
 // wxEventLoop initialization
 //-----------------------------------------------------------------------------
 
-IDirectFBEventBufferPtr wxEventLoop::ms_buffer;
+wxIDirectFBEventBufferPtr wxGUIEventLoop::ms_buffer;
 
-wxEventLoop::wxEventLoop()
+wxGUIEventLoop::wxGUIEventLoop()
 {
     if ( !ms_buffer )
         InitBuffer();
 }
 
 /* static */
-void wxEventLoop::InitBuffer()
+void wxGUIEventLoop::InitBuffer()
 {
-    IDirectFBPtr dfb(wxTheApp->GetDirectFBInterface());
-    DFB_CALL( dfb->CreateEventBuffer(dfb, &ms_buffer) );
+    ms_buffer = wxIDirectFB::Get()->CreateEventBuffer();
 }
 
 /* static */
-IDirectFBEventBufferPtr wxEventLoop::GetDirectFBEventBuffer()
+void wxGUIEventLoop::CleanUp()
+{
+    ms_buffer.Reset();
+}
+
+/* static */
+wxIDirectFBEventBufferPtr wxGUIEventLoop::GetDirectFBEventBuffer()
 {
     if ( !ms_buffer )
         InitBuffer();
@@ -66,81 +74,100 @@ IDirectFBEventBufferPtr wxEventLoop::GetDirectFBEventBuffer()
 // events dispatch and loop handling
 //-----------------------------------------------------------------------------
 
-bool wxEventLoop::Pending() const
+bool wxGUIEventLoop::Pending() const
 {
-    wxCHECK_MSG( ms_buffer, false, _T("invalid event buffer") );
+    wxCHECK_MSG( ms_buffer, false, "invalid event buffer" );
 
-    // returns DFB_OK if there is >=1 event, DFB_BUFFER_EMPTY otherwise
-    return ms_buffer->HasEvent(ms_buffer) == DFB_OK;
+    return ms_buffer->HasEvent();
 }
 
-bool wxEventLoop::Dispatch()
+bool wxGUIEventLoop::Dispatch()
 {
-    wxCHECK_MSG( ms_buffer, false, _T("invalid event buffer") );
+    wxCHECK_MSG( ms_buffer, false, "invalid event buffer" );
 
     // NB: we don't block indefinitely waiting for an event, but instead
     //     time out after a brief period in order to make sure that
     //     OnNextIteration() will be called frequently enough
-    //
-    //     FIXME: call NotifyTimers() from here (and loop) instead?
     const int TIMEOUT = 100;
 
-    DFBResult ret = ms_buffer->WaitForEventWithTimeout(ms_buffer, 0, TIMEOUT);
+    // release the GUI mutex so that other threads have a chance to post
+    // events:
+    wxMutexGuiLeave();
 
-    switch ( ret )
+    bool rv = ms_buffer->WaitForEventWithTimeout(0, TIMEOUT);
+
+    // and acquire it back before calling any event handlers:
+    wxMutexGuiEnter();
+
+    if ( rv )
     {
-        case DFB_OK:
+        switch ( ms_buffer->GetLastResult() )
         {
-            wxDFBEvent e;
-            ms_buffer->GetEvent(ms_buffer, &e);
-            HandleDFBEvent(e);
-            break;
+            case DFB_OK:
+            {
+                wxDFBEvent e;
+                ms_buffer->GetEvent(e);
+                HandleDFBEvent(e);
+                break;
+            }
+
+            case DFB_TIMEOUT:
+                // timed out, pretend we processed an event so that
+                // OnNextIteration is called
+                break;
+
+            default:
+                // don't terminate the loop due to errors (they were reported
+                // already by ms_buffer)
+                break;
         }
-
-        case DFB_TIMEOUT:
-            // timed out, pretend we processed an event so that OnNextIteration
-            // is called
-            break;
-
-        default:
-            // report any errors, but don't terminate the loop due to them
-            wxDfbCheckReturn(ret);
-            break;
     }
 
     return true;
 }
 
-void wxEventLoop::WakeUp()
+void wxGUIEventLoop::WakeUp()
 {
-    wxCHECK_RET( ms_buffer, _T("invalid event buffer") );
+    wxCHECK_RET( ms_buffer, "invalid event buffer" );
 
-    DFB_CALL( ms_buffer->WakeUp(ms_buffer) );
+    ms_buffer->WakeUp();
 }
 
-void wxEventLoop::OnNextIteration()
+void wxGUIEventLoop::OnNextIteration()
 {
 #if wxUSE_TIMER
-    // see the comment in Dispatch
-    wxTimer::NotifyTimers();
+    wxGenericTimerImpl::NotifyTimers();
+#endif
+
+#if wxUSE_SOCKETS
+    // handle any pending socket events:
+    wxSelectDispatcher::DispatchPending();
 #endif
 }
 
-#warning "FIXME: cleanup wxEventLoop::ms_buffer before exiting"
+void wxGUIEventLoop::Yield()
+{
+    // process all pending events:
+    while ( Pending() )
+        Dispatch();
+
+    // handle timers, sockets etc.
+    OnNextIteration();
+}
 
 
 //-----------------------------------------------------------------------------
 // DirectFB -> wxWidgets events translation
 //-----------------------------------------------------------------------------
 
-void wxEventLoop::HandleDFBEvent(const wxDFBEvent& event)
+void wxGUIEventLoop::HandleDFBEvent(const wxDFBEvent& event)
 {
     switch ( event.GetClass() )
     {
         case DFEC_WINDOW:
         {
             wxDFBWindowEvent winevent(((const DFBEvent&)event).window);
-            wxTopLevelWindowDFB::HandleDFBWindowEvent(winevent);
+            wxNonOwnedWindow::HandleDFBWindowEvent(winevent);
             break;
         }
 
@@ -152,7 +179,7 @@ void wxEventLoop::HandleDFBEvent(const wxDFBEvent& event)
 #endif
         {
             wxLogTrace(TRACE_EVENTS,
-                       _T("ignoring event of unsupported class %i"),
+                       "ignoring event of unsupported class %i",
                        (int)event.GetClass());
         }
     }