fixed memory allocation code of wxStreamBuffer to not realloc() new[]ed memory any...

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

diff --git a/src/generic/laywin.cpp b/src/generic/laywin.cpp
index 409814e68277696729d3e672379ee2e85326a5c1..b418869ad224a50ffe17053fab0090e2e77e672f 100644 (file)
--- a/src/generic/laywin.cpp
+++ b/src/generic/laywin.cpp
@@ -249,12 +249,60 @@ bool wxLayoutAlgorithm::LayoutWindow(wxWindow* parent, wxWindow* mainWindow)
     wxCalculateLayoutEvent event;
     event.SetRect(rect);
 
+    // Find the last layout-aware window, so we can make it fill all remaining
+    // space.
+    wxWindow* lastAwareWindow = NULL;
     wxNode* node = parent->GetChildren().First();
     while (node)
     {
         wxWindow* win = (wxWindow*) node->Data();
 
-        if (win != mainWindow)
+        if (win->IsShown())
+        {
+            wxCalculateLayoutEvent tempEvent(win->GetId());
+            tempEvent.SetEventObject(win);
+            tempEvent.SetFlags(wxLAYOUT_QUERY);
+            tempEvent.SetRect(event.GetRect());
+            if (win->GetEventHandler()->ProcessEvent(tempEvent))
+                lastAwareWindow = win;
+        }
+
+        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)
+    {
+        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);
@@ -269,7 +317,12 @@ 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, wxMax(0, rect.width), wxMax(0, rect.height));
+    }
 
     return TRUE;
 }