a fix for the last fix

[wxWidgets.git] / src / generic / laywin.cpp

diff --git a/src/generic/laywin.cpp b/src/generic/laywin.cpp
index 92344499351b6c286c4341aca67d5f30f3b51888..da487759381ec8ce0d4d9c8c867bd75926ee3a04 100644 (file)
--- a/src/generic/laywin.cpp
+++ b/src/generic/laywin.cpp
@@ -33,6 +33,9 @@
 IMPLEMENT_DYNAMIC_CLASS(wxQueryLayoutInfoEvent, wxEvent)
 IMPLEMENT_DYNAMIC_CLASS(wxCalculateLayoutEvent, wxEvent)
 
+DEFINE_EVENT_TYPE(wxEVT_QUERY_LAYOUT_INFO)
+DEFINE_EVENT_TYPE(wxEVT_CALCULATE_LAYOUT)
+
 #if wxUSE_SASH
 IMPLEMENT_CLASS(wxSashLayoutWindow, wxSashWindow)
 
@@ -270,6 +273,31 @@ bool wxLayoutAlgorithm::LayoutWindow(wxWindow* parent, wxWindow* mainWindow)
         node = node->Next();
     }
 
+    // Now do a dummy run to see if we have any space left for the final window (fail if not)
+    node = parent->GetChildren().First();
+    while (node)
+    {
+        wxWindow* win = (wxWindow*) node->Data();
+
+        // If mainWindow is NULL and we're at the last window,
+        // skip this, because we'll simply make it fit the remaining space.
+        if (win->IsShown() && (win != mainWindow) && (mainWindow != NULL || win != lastAwareWindow))
+        {
+            event.SetId(win->GetId());
+            event.SetEventObject(win);
+            event.SetFlags(wxLAYOUT_QUERY);
+
+            win->GetEventHandler()->ProcessEvent(event);
+        }
+
+        node = node->Next();
+    }
+
+    if (event.GetRect().GetWidth() < 0 || event.GetRect().GetHeight() < 0)
+        return FALSE;
+
+    event.SetRect(rect);
+
     node = parent->GetChildren().First();
     while (node)
     {
@@ -277,7 +305,7 @@ bool wxLayoutAlgorithm::LayoutWindow(wxWindow* parent, wxWindow* mainWindow)
 
         // If mainWindow is NULL and we're at the last window,
         // skip this, because we'll simply make it fit the remaining space.
-        if ((win != mainWindow) && (mainWindow != NULL || win != lastAwareWindow))
+        if (win->IsShown() && (win != mainWindow) && (mainWindow != NULL || win != lastAwareWindow))
         {
             event.SetId(win->GetId());
             event.SetEventObject(win);
@@ -292,11 +320,11 @@ bool wxLayoutAlgorithm::LayoutWindow(wxWindow* parent, wxWindow* mainWindow)
     rect = event.GetRect();
 
     if (mainWindow)
-        mainWindow->SetSize(rect.x, rect.y, rect.width, rect.height);
+        mainWindow->SetSize(rect.x, rect.y, wxMax(0, rect.width), wxMax(0, rect.height));
     else if (lastAwareWindow)
     {
         // Fit the remaining space
-        lastAwareWindow->SetSize(rect.x, rect.y, rect.width, rect.height);
+        lastAwareWindow->SetSize(rect.x, rect.y, wxMax(0, rect.width), wxMax(0, rect.height));
     }
 
     return TRUE;