X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/ea1ad04b434f92c1269e6dde222a77698d6f873c..5f605ccf3fcce969d9a634bf1cf6aa4f13f74d2e:/src/x11/app.cpp

diff --git a/src/x11/app.cpp b/src/x11/app.cpp
index 91b39edbb7..1ca16bb8e2 100644
--- a/src/x11/app.cpp
+++ b/src/x11/app.cpp
@@ -25,10 +25,13 @@
 #include "wx/log.h"
 #include "wx/intl.h"
 #include "wx/evtloop.h"
+#include "wx/timer.h"
 
 #include "wx/univ/theme.h"
 #include "wx/univ/renderer.h"
 
+#define ABS(a)	   (((a) < 0) ? -(a) : (a))
+
 #if wxUSE_THREADS
     #include "wx/thread.h"
 #endif
@@ -48,6 +51,7 @@
 extern wxList wxPendingDelete;
 
 wxHashTable *wxWidgetHashTable = NULL;
+wxHashTable *wxClientWidgetHashTable = NULL;
 
 wxApp *wxTheApp = NULL;
 
@@ -118,6 +122,7 @@ bool wxApp::Initialize()
 #endif
 
     wxWidgetHashTable = new wxHashTable(wxKEY_INTEGER);
+    wxClientWidgetHashTable = new wxHashTable(wxKEY_INTEGER);
 
     wxModule::RegisterModules();
     if (!wxModule::InitializeModules()) return FALSE;
@@ -133,6 +138,8 @@ void wxApp::CleanUp()
 
     delete wxWidgetHashTable;
     wxWidgetHashTable = NULL;
+    delete wxClientWidgetHashTable;
+    wxClientWidgetHashTable = NULL;
 
     wxModule::CleanUpModules();
 
@@ -144,7 +151,7 @@ void wxApp::CleanUp()
     wxTheColourDatabase = NULL;
 
     wxDeleteStockObjects();
-    
+
     wxDeleteStockLists();
 
     delete wxTheApp;
@@ -259,11 +266,11 @@ int wxEntryStart( int& argc, char *argv[] )
     {
         XSynchronize(xdisplay, True);
     }
-    
+
     wxApp::ms_display = (WXDisplay*) xdisplay;
-    
+
     XSelectInput( xdisplay, XDefaultRootWindow(xdisplay), PropertyChangeMask);
-        
+
     wxSetDetectableAutoRepeat( TRUE );
 
     if (!wxApp::Initialize())
@@ -391,6 +398,22 @@ wxApp::wxApp()
     m_mainLoop = NULL;
     m_showIconic = FALSE;
     m_initialSize = wxDefaultSize;
+    
+#if !wxUSE_NANOX
+    m_visualColormap = NULL;
+    m_colorCube = NULL;
+#endif
+}
+
+wxApp::~wxApp()
+{
+#if !wxUSE_NANOX
+    if (m_colorCube)
+        free( m_colorCube );
+        
+    if (m_visualColormap)
+        delete [] (XColor*)m_visualColormap;
+#endif
 }
 
 bool wxApp::Initialized()
@@ -403,7 +426,7 @@ bool wxApp::Initialized()
 
 int wxApp::MainLoop()
 {
-     int rt;
+    int rt;
     m_mainLoop = new wxEventLoop;
 
     rt = m_mainLoop->Run();
@@ -427,38 +450,40 @@ struct wxExposeInfo
 static Bool expose_predicate (Display *display, XEvent *xevent, XPointer arg)
 {
     wxExposeInfo *info = (wxExposeInfo*) arg;
-    
+
     if (info->found_non_matching)
        return FALSE;
-    
+
     if (xevent->xany.type != Expose)
     {
         info->found_non_matching = TRUE;
         return FALSE;
     }
-    
+
     if (xevent->xexpose.window != info->window)
     {
         info->found_non_matching = TRUE;
         return FALSE;
     }
-    
+
     return TRUE;
 }
 #endif
     // wxUSE_NANOX
 
 //-----------------------------------------------------------------------
-// Processes an X event.
+// Processes an X event, returning TRUE if the event was processed.
 //-----------------------------------------------------------------------
 
-void wxApp::ProcessXEvent(WXEvent* _event)
+bool wxApp::ProcessXEvent(WXEvent* _event)
 {
     XEvent* event = (XEvent*) _event;
 
     wxWindow* win = NULL;
     Window window = XEventGetWindow(event);
+#if 0
     Window actualWindow = window;
+#endif
 
     // Find the first wxWindow that corresponds to this event window
     // Because we're receiving events after a window
@@ -468,43 +493,144 @@ void wxApp::ProcessXEvent(WXEvent* _event)
 
     win = wxGetWindowFromTable(window);
     if (!win)
-	    return;
+    {
+#if wxUSE_TWO_WINDOWS
+        win = wxGetClientWindowFromTable(window);
+        if (!win)
+#endif
+            return FALSE;
+    }
 
 #ifdef __WXDEBUG__
     wxString windowClass = win->GetClassInfo()->GetClassName();
 #endif
-    
+
     switch (event->type)
     {
+        case Expose:
+        {
+#if wxUSE_TWO_WINDOWS && !wxUSE_NANOX
+            if (event->xexpose.window != (Window)win->GetClientWindow())
+            {
+                XEvent tmp_event;
+                wxExposeInfo info;
+                info.window = event->xexpose.window;
+                info.found_non_matching = FALSE;
+                while (XCheckIfEvent( wxGlobalDisplay(), &tmp_event, expose_predicate, (XPointer) &info ))
+                {
+                    // Don't worry about optimizing redrawing the border etc.
+                }
+                win->NeedUpdateNcAreaInIdle();
+            }
+            else
+#endif
+            {
+                win->GetUpdateRegion().Union( XExposeEventGetX(event), XExposeEventGetY(event),
+                                              XExposeEventGetWidth(event), XExposeEventGetHeight(event));
+                win->GetClearRegion().Union( XExposeEventGetX(event), XExposeEventGetY(event),
+                                         XExposeEventGetWidth(event), XExposeEventGetHeight(event));
+
+#if !wxUSE_NANOX
+                XEvent tmp_event;
+                wxExposeInfo info;
+                info.window = event->xexpose.window;
+                info.found_non_matching = FALSE;
+                while (XCheckIfEvent( wxGlobalDisplay(), &tmp_event, expose_predicate, (XPointer) &info ))
+                {
+                    win->GetUpdateRegion().Union( tmp_event.xexpose.x, tmp_event.xexpose.y,
+                                                  tmp_event.xexpose.width, tmp_event.xexpose.height );
+
+                    win->GetClearRegion().Union( tmp_event.xexpose.x, tmp_event.xexpose.y,
+                                                 tmp_event.xexpose.width, tmp_event.xexpose.height );
+                }
+#endif
+
+                // This simplifies the expose and clear areas to simple
+                // rectangles.
+                win->GetUpdateRegion() = win->GetUpdateRegion().GetBox();
+                win->GetClearRegion() = win->GetClearRegion().GetBox();
+
+                // If we only have one X11 window, always indicate
+                // that borders might have to be redrawn.
+                if (win->GetMainWindow() == win->GetClientWindow())
+                    win->NeedUpdateNcAreaInIdle();
+
+                // Only erase background, paint in idle time.
+                win->SendEraseEvents();
+                // win->Update();
+            }
+
+            return TRUE;
+        }
+
+#if !wxUSE_NANOX
+        case GraphicsExpose:
+        {
+            printf( "GraphicExpose event\n" );
+
+            // wxLogDebug( "GraphicsExpose from %s", win->GetName().c_str(),
+            //                              event->xgraphicsexpose.x, event->xgraphicsexpose.y,
+            //                              event->xgraphicsexpose.width, event->xgraphicsexpose.height);
+
+            win->GetUpdateRegion().Union( event->xgraphicsexpose.x, event->xgraphicsexpose.y,
+                                          event->xgraphicsexpose.width, event->xgraphicsexpose.height);
+
+            win->GetClearRegion().Union( event->xgraphicsexpose.x, event->xgraphicsexpose.y,
+                                         event->xgraphicsexpose.width, event->xgraphicsexpose.height);
+
+            if (event->xgraphicsexpose.count == 0)
+            {
+                // Only erase background, paint in idle time.
+                win->SendEraseEvents();
+                // win->Update();
+            }
+
+            return TRUE;
+        }
+#endif
+
         case KeyPress:
         {
             if (!win->IsEnabled())
-                return;
+                return FALSE;
 
             wxKeyEvent keyEvent(wxEVT_KEY_DOWN);
             wxTranslateKeyEvent(keyEvent, win, window, event);
-                    
+
             // wxLogDebug( "OnKey from %s", win->GetName().c_str() );
-        
-            // We didn't process wxEVT_KEY_DOWN, so send
-            // wxEVT_CHAR
-            if (!win->GetEventHandler()->ProcessEvent( keyEvent ))
+
+            // We didn't process wxEVT_KEY_DOWN, so send wxEVT_CHAR
+            if (win->GetEventHandler()->ProcessEvent( keyEvent ))
+                return TRUE;
+
+            keyEvent.SetEventType(wxEVT_CHAR);
+            if (win->GetEventHandler()->ProcessEvent( keyEvent ))
+                return TRUE;
+
+            if ( (keyEvent.m_keyCode == WXK_TAB) &&
+                 win->GetParent() && (win->GetParent()->HasFlag( wxTAB_TRAVERSAL)) )
             {
-                keyEvent.SetEventType(wxEVT_CHAR);
-                win->GetEventHandler()->ProcessEvent( keyEvent );
+                wxNavigationKeyEvent new_event;
+                new_event.SetEventObject( win->GetParent() );
+                /* GDK reports GDK_ISO_Left_Tab for SHIFT-TAB */
+                new_event.SetDirection( (keyEvent.m_keyCode == WXK_TAB) );
+                /* CTRL-TAB changes the (parent) window, i.e. switch notebook page */
+                new_event.SetWindowChange( keyEvent.ControlDown() );
+                new_event.SetCurrentFocus( win );
+                return win->GetParent()->GetEventHandler()->ProcessEvent( new_event );
             }
-            return;
+
+            return FALSE;
         }
         case KeyRelease:
         {
             if (!win->IsEnabled())
-                return;
+                return FALSE;
 
             wxKeyEvent keyEvent(wxEVT_KEY_UP);
             wxTranslateKeyEvent(keyEvent, win, window, event);
-        
-            win->GetEventHandler()->ProcessEvent( keyEvent );
-            return;
+
+            return win->GetEventHandler()->ProcessEvent( keyEvent );
         }
         case ConfigureNotify:
         {
@@ -512,25 +638,39 @@ void wxApp::ProcessXEvent(WXEvent* _event)
             if (event->update.utype == GR_UPDATE_SIZE)
 #endif
             {
-                //wxLogDebug("ConfigureNotify: %s", windowClass.c_str());
-                wxSizeEvent sizeEvent( wxSize(XConfigureEventGetWidth(event), XConfigureEventGetHeight(event)), win->GetId() );
-                sizeEvent.SetEventObject( win );
-                
-                win->GetEventHandler()->ProcessEvent( sizeEvent );
+                if (win->IsTopLevel())
+                {
+                    wxTopLevelWindow *tlw = (wxTopLevelWindow*) win;
+                    tlw->SetConfigureGeometry( XConfigureEventGetX(event), XConfigureEventGetY(event),
+                        XConfigureEventGetWidth(event), XConfigureEventGetHeight(event) );
+                }
+
+                if (win->IsTopLevel() && win->IsShown())
+                {
+                    wxTopLevelWindowX11 *tlw = (wxTopLevelWindowX11 *) win;
+                    tlw->SetNeedResizeInIdle();
+                }
+                else
+                {
+                    wxSizeEvent sizeEvent( wxSize(XConfigureEventGetWidth(event), XConfigureEventGetHeight(event)), win->GetId() );
+                    sizeEvent.SetEventObject( win );
+
+                    return win->GetEventHandler()->ProcessEvent( sizeEvent );
+                }
             }
+            return FALSE;
             break;
         }
 #if !wxUSE_NANOX
         case PropertyNotify:
         {
             //wxLogDebug("PropertyNotify: %s", windowClass.c_str());
-            HandlePropertyChange(_event);
-            return;
+            return HandlePropertyChange(_event);
         }
         case ClientMessage:
         {
             if (!win->IsEnabled())
-                return;
+                return FALSE;
 
             Atom wm_delete_window = XInternAtom(wxGlobalDisplay(), "WM_DELETE_WINDOW", True);
             Atom wm_protocols = XInternAtom(wxGlobalDisplay(), "WM_PROTOCOLS", True);
@@ -540,96 +680,57 @@ void wxApp::ProcessXEvent(WXEvent* _event)
                 if ((Atom) (event->xclient.data.l[0]) == wm_delete_window)
                 {
                     win->Close(FALSE);
+                    return TRUE;
                 }
             }
-            return;
+            return FALSE;
+        }
+#if 0
+        case DestroyNotify:
+        {
+            printf( "destroy from %s\n", win->GetName().c_str() );
+            break;
+        }
+        case CreateNotify:
+        {
+            printf( "create from %s\n", win->GetName().c_str() );
+            break;
+        }
+        case MapRequest:
+        {
+            printf( "map request from %s\n", win->GetName().c_str() );
+            break;
         }
         case ResizeRequest:
         {
-            /*
-            * If resize event, don't resize until the last resize event for this
-            * window is recieved. Prevents flicker as windows are resized.
-            */
-        
+            printf( "resize request from %s\n", win->GetName().c_str() );
+
             Display *disp = (Display*) wxGetDisplay();
             XEvent report;
-            
+
             //  to avoid flicker
             report = * event;
             while( XCheckTypedWindowEvent (disp, actualWindow, ResizeRequest, &report));
-            
-            if (win)
-            {
-                wxSize sz = win->GetSize();
-                wxSizeEvent sizeEvent(sz, win->GetId());
-                sizeEvent.SetEventObject(win);
 
-                win->GetEventHandler()->ProcessEvent( sizeEvent );
-            }
+            wxSize sz = win->GetSize();
+            wxSizeEvent sizeEvent(sz, win->GetId());
+            sizeEvent.SetEventObject(win);
 
-            return;
+            return win->GetEventHandler()->ProcessEvent( sizeEvent );
         }
 #endif
+#endif
 #if wxUSE_NANOX
         case GR_EVENT_TYPE_CLOSE_REQ:
         {
             if (win)
             {
                 win->Close(FALSE);
+                return TRUE;
             }
+            return FALSE;
             break;
         }
-#endif
-        case Expose:
-        {
-            //wxLogDebug("Expose: %s", windowClass.c_str());
-            win->GetUpdateRegion().Union( XExposeEventGetX(event), XExposeEventGetY(event),
-                                          XExposeEventGetWidth(event), XExposeEventGetHeight(event));
-                                              
-            win->GetClearRegion().Union( XExposeEventGetX(event), XExposeEventGetY(event),
-                                         XExposeEventGetWidth(event), XExposeEventGetHeight(event));
-                                              
-
-#if !wxUSE_NANOX
-            XEvent tmp_event;
-            wxExposeInfo info;
-            info.window = event->xexpose.window;
-            info.found_non_matching = FALSE;
-            while (XCheckIfEvent( wxGlobalDisplay(), &tmp_event, expose_predicate, (XPointer) &info ))
-            {
-                win->GetUpdateRegion().Union( tmp_event.xexpose.x, tmp_event.xexpose.y,
-                                              tmp_event.xexpose.width, tmp_event.xexpose.height );
-                                              
-                win->GetClearRegion().Union( tmp_event.xexpose.x, tmp_event.xexpose.y,
-                                             tmp_event.xexpose.width, tmp_event.xexpose.height );
-            }
-#endif
-
-            win->SendEraseEvents();
-
-            return;
-        }
-#if !wxUSE_NANOX
-        case GraphicsExpose:
-        {
-            // wxLogDebug( "GraphicsExpose from %s", win->GetName().c_str(),
-            //                              event->xgraphicsexpose.x, event->xgraphicsexpose.y,
-            //                              event->xgraphicsexpose.width, event->xgraphicsexpose.height);
-                    
-            win->GetUpdateRegion().Union( event->xgraphicsexpose.x, event->xgraphicsexpose.y,
-                                          event->xgraphicsexpose.width, event->xgraphicsexpose.height);
-                                             
-            win->GetClearRegion().Union( event->xgraphicsexpose.x, event->xgraphicsexpose.y,
-                                         event->xgraphicsexpose.width, event->xgraphicsexpose.height);
-                                              
-            if (event->xgraphicsexpose.count == 0)
-            {
-                // Only erase background, paint in idle time.
-                win->SendEraseEvents();
-            }
-
-            return;
-        }
 #endif
         case EnterNotify:
         case LeaveNotify:
@@ -638,7 +739,7 @@ void wxApp::ProcessXEvent(WXEvent* _event)
         case MotionNotify:
         {
             if (!win->IsEnabled())
-                return;
+                return FALSE;
                 
             // Here we check if the top level window is
             // disabled, which is one aspect of modality.
@@ -646,8 +747,8 @@ void wxApp::ProcessXEvent(WXEvent* _event)
             while (tlw && !tlw->IsTopLevel())
                 tlw = tlw->GetParent();
             if (tlw && !tlw->IsEnabled())
-                return;
-                
+                return FALSE;
+
             if (event->type == ButtonPress)
             {
                 if ((win != wxWindow::FindFocus()) && win->AcceptsFocus())
@@ -656,24 +757,22 @@ void wxApp::ProcessXEvent(WXEvent* _event)
                     // and not here. TODO.
                     g_prevFocus = wxWindow::FindFocus();
                     g_nextFocus = win;
-                    
+
                     win->SetFocus();
                 }
             }
-            
+
 #if !wxUSE_NANOX
             if (event->type == LeaveNotify || event->type == EnterNotify)
             {
                 // Throw out NotifyGrab and NotifyUngrab
                 if (event->xcrossing.mode != NotifyNormal)
-                    return;
+                    return FALSE;
             }
 #endif
             wxMouseEvent wxevent;
             wxTranslateMouseEvent(wxevent, win, window, event);
-            win->GetEventHandler()->ProcessEvent( wxevent );
-                
-            return;
+            return win->GetEventHandler()->ProcessEvent( wxevent );
         }
         case FocusIn:
             {
@@ -683,14 +782,15 @@ void wxApp::ProcessXEvent(WXEvent* _event)
 #endif
                 {
                     // wxLogDebug( "FocusIn from %s of type %s", win->GetName().c_str(), win->GetClassInfo()->GetClassName() );
-                    
+
                     wxFocusEvent focusEvent(wxEVT_SET_FOCUS, win->GetId());
                     focusEvent.SetEventObject(win);
                     focusEvent.SetWindow( g_prevFocus );
                     g_prevFocus = NULL;
-                    
-                    win->GetEventHandler()->ProcessEvent(focusEvent);
+
+                    return win->GetEventHandler()->ProcessEvent(focusEvent);
                 }
+                return FALSE;
                 break;
             }
         case FocusOut:
@@ -701,32 +801,27 @@ void wxApp::ProcessXEvent(WXEvent* _event)
 #endif
                 {
                     // wxLogDebug( "FocusOut from %s of type %s", win->GetName().c_str(), win->GetClassInfo()->GetClassName() );
-                    
+
                     wxFocusEvent focusEvent(wxEVT_KILL_FOCUS, win->GetId());
                     focusEvent.SetEventObject(win);
                     focusEvent.SetWindow( g_nextFocus );
                     g_nextFocus = NULL;
-                    win->GetEventHandler()->ProcessEvent(focusEvent);
+                    return win->GetEventHandler()->ProcessEvent(focusEvent);
                 }
+                return FALSE;
                 break;
             }
-#ifndef wxUSE_NANOX
-         case DestroyNotify:
-            {
-                // Do we want to process this (for top-level windows)?
-                // But we want to be able to veto closes, anyway
-                break;
-            }
-#endif
         default:
         {
 #ifdef __WXDEBUG__
             //wxString eventName = wxGetXEventName(XEvent& event);
             //wxLogDebug(wxT("Event %s not handled"), eventName.c_str());
 #endif
+            return FALSE;
             break;
         }
     }
+    return FALSE;
 }
 
 // Returns TRUE if more time is needed.
@@ -761,11 +856,12 @@ void wxApp::Dispatch()
 
 // This should be redefined in a derived class for
 // handling property change events for XAtom IPC.
-void wxApp::HandlePropertyChange(WXEvent *event)
+bool wxApp::HandlePropertyChange(WXEvent *event)
 {
     // by default do nothing special
     // TODO: what to do for X11
     // XtDispatchEvent((XEvent*) event);
+    return FALSE;
 }
 
 void wxApp::OnIdle(wxIdleEvent& event)
@@ -828,8 +924,6 @@ bool wxApp::SendIdleEvents(wxWindow* win)
 
     win->GetEventHandler()->ProcessEvent(event);
 
-    win->OnInternalIdle();
-
     if (event.MoreRequested())
         needMore = TRUE;
 
@@ -842,7 +936,9 @@ bool wxApp::SendIdleEvents(wxWindow* win)
 
         node = node->Next();
     }
-    
+
+    win->OnInternalIdle();
+
     return needMore;
 }
 
@@ -864,6 +960,24 @@ void wxApp::DeletePendingObjects()
     }
 }
 
+static void wxCalcPrecAndShift( unsigned long mask, int *shift, int *prec )
+{
+  *shift = 0;
+  *prec = 0;
+
+  while (!(mask & 0x1))
+    {
+      (*shift)++;
+      mask >>= 1;
+    }
+
+  while (mask & 0x1)
+    {
+      (*prec)++;
+      mask >>= 1;
+    }
+}
+
 // Create display, and other initialization
 bool wxApp::OnInitGui()
 {
@@ -871,14 +985,110 @@ bool wxApp::OnInitGui()
     // now we don't want to try popping up a dialog
     // for error messages.
     delete wxLog::SetActiveTarget(new wxLogStderr);
-    
+
     if (!wxAppBase::OnInitGui())
-	return FALSE;
-    
+        return FALSE;
+
     GetMainColormap( wxApp::GetDisplay() );
 
     m_maxRequestSize = XMaxRequestSize( (Display*) wxApp::GetDisplay() );
 
+#if !wxUSE_NANOX
+    // Get info about the current visual. It is enough
+    // to do this once here unless we support different
+    // visuals, displays and screens. Given that wxX11
+    // mostly for embedded things, that is no real
+    // limitation.
+    Display *xdisplay = (Display*) wxApp::GetDisplay();
+    int xscreen = DefaultScreen(xdisplay);
+    Visual* xvisual = DefaultVisual(xdisplay,xscreen);
+    int xdepth = DefaultDepth(xdisplay, xscreen);
+
+    XVisualInfo vinfo_template;
+    vinfo_template.visual = xvisual;
+    vinfo_template.visualid = XVisualIDFromVisual( xvisual );
+    vinfo_template.depth = xdepth;
+        
+    int nitem = 0;
+    XVisualInfo *vi = XGetVisualInfo( xdisplay, VisualIDMask|VisualDepthMask, &vinfo_template, &nitem );
+    wxASSERT_MSG( vi, wxT("No visual info") );
+    
+    m_visualType = vi->visual->c_class;
+    m_visualScreen = vi->screen;
+    
+    m_visualRedMask = vi->red_mask;
+    m_visualGreenMask = vi->green_mask;
+    m_visualBlueMask = vi->blue_mask;
+    
+    if (m_visualType != GrayScale && m_visualType != PseudoColor)
+    {
+        wxCalcPrecAndShift( m_visualRedMask, &m_visualRedShift, &m_visualRedPrec );
+        wxCalcPrecAndShift( m_visualGreenMask, &m_visualGreenShift, &m_visualGreenPrec );
+        wxCalcPrecAndShift( m_visualBlueMask, &m_visualBlueShift, &m_visualBluePrec );
+    }
+    
+    m_visualDepth = xdepth;
+    if (xdepth == 16)
+        xdepth = m_visualRedPrec + m_visualGreenPrec + m_visualBluePrec;
+        
+    m_visualColormapSize = vi->colormap_size;
+        
+    XFree( vi );
+    
+    if (m_visualDepth > 8)
+        return TRUE;
+    
+    m_visualColormap = new XColor[m_visualColormapSize];
+    XColor* colors = (XColor*) m_visualColormap;
+    
+    for (int i = 0; i < m_visualColormapSize; i++)
+	    colors[i].pixel = i;
+
+    XQueryColors( xdisplay, DefaultColormap(xdisplay,xscreen), colors, m_visualColormapSize );
+        
+    m_colorCube = (unsigned char*)malloc(32 * 32 * 32);
+
+    for (int r = 0; r < 32; r++)
+    {
+        for (int g = 0; g < 32; g++)
+        {
+            for (int b = 0; b < 32; b++)
+            {
+                int rr = (r << 3) | (r >> 2);
+                int gg = (g << 3) | (g >> 2);
+                int bb = (b << 3) | (b >> 2);
+
+                int index = -1;
+
+                if (colors)
+                {
+                    int max = 3 * 65536;
+
+                    for (int i = 0; i < m_visualColormapSize; i++)
+                    {
+                        int rdiff = ((rr << 8) - colors[i].red);
+                        int gdiff = ((gg << 8) - colors[i].green);
+                        int bdiff = ((bb << 8) - colors[i].blue);
+                        int sum = ABS (rdiff) + ABS (gdiff) + ABS (bdiff);
+                        if (sum < max)
+                        {
+                            index = i; max = sum;
+                        }
+                    }
+                }
+                else
+                {
+                    // assume 8-bit true or static colors. this really exists
+                    index = (r >> (5 - m_visualRedPrec)) << m_visualRedShift;
+                    index |= (g >> (5 - m_visualGreenPrec)) << m_visualGreenShift;
+                    index |= (b >> (5 - m_visualBluePrec)) << m_visualBlueShift;
+                }
+                m_colorCube[ (r*1024) + (g*32) + b ] = index;
+            }
+        }
+    }
+#endif
+    
     return TRUE;
 }
 
@@ -901,7 +1111,7 @@ WXColormap wxApp::GetMainColormap(WXDisplay* display)
 Window wxGetWindowParent(Window window)
 {
     wxASSERT_MSG( window, "invalid window" );
-    
+
     return (Window) 0;
 
     Window parent, root = 0;
@@ -912,13 +1122,13 @@ Window wxGetWindowParent(Window window)
 #endif
     Window* children = NULL;
 
-    // #define XQueryTree(d,w,r,p,c,nc)		GrQueryTree(w,p,c,nc)
+    // #define XQueryTree(d,w,r,p,c,nc)     GrQueryTree(w,p,c,nc)
     int res = 1;
 #if !wxUSE_NANOX
     res =
 #endif
         XQueryTree((Display*) wxGetDisplay(), window, & root, & parent,
-			 & children, & noChildren);
+             & children, & noChildren);
     if (children)
         XFree(children);
     if (res)
@@ -959,24 +1169,40 @@ bool wxApp::Yield(bool onlyIfNeeded)
 
     s_inYield = TRUE;
 
+    // Make sure we have an event loop object,
+    // or Pending/Dispatch will fail
+    wxEventLoop* eventLoop = wxEventLoop::GetActive();
+    wxEventLoop* newEventLoop = NULL;
+    if (!eventLoop)
+    {
+        newEventLoop = new wxEventLoop;
+        wxEventLoop::SetActive(newEventLoop);
+    }
+
     while (wxTheApp && wxTheApp->Pending())
         wxTheApp->Dispatch();
 
+#if wxUSE_TIMER
+    wxTimer::NotifyTimers();
+#endif
+    ProcessIdle();
+
+    if (newEventLoop)
+    {
+        wxEventLoop::SetActive(NULL);
+        delete newEventLoop;
+    }
+
     s_inYield = FALSE;
 
     return TRUE;
 }
 
-wxIcon wxApp::GetStdIcon(int which) const
-{
-    return wxTheme::Get()->GetRenderer()->GetStdIcon(which);
-}
-
 void wxApp::OnAssert(const wxChar *file, int line, const wxChar *msg)
 {
     // While the GUI isn't working that well, just print out the
     // message.
-#if 0    
+#if 1
     wxAppBase::OnAssert(file, line, msg);
 #else
     wxString msg2;