make SvxColorValueSet not squish all colours into avail space

instead hook SvxColorValueSet::Resize() to layoutToGivenHeight
and let it add a scrollbar if the height would squish them

Change-Id: Ia94b01b247f734f3640b15f7161d28530e65d538

include/svx/SvxColorValueSet.hxx

@@ -35,6 +35,8 @@ public:
     SvxColorValueSet(Window* pParent, WinBits nWinStyle = WB_ITEMBORDER);
     SvxColorValueSet(Window* pParent, const ResId& rResId);
 
+    virtual void Resize();
+
     sal_uInt32 getMaxRowCount() const;
     sal_uInt32 getEntryEdgeLength() const;
     sal_uInt32 getColumnCount() const;

svx/source/tbxctrls/SvxColorValueSet.cxx

@@ -118,6 +118,15 @@ Size SvxColorValueSet::layoutAllVisible(sal_uInt32 nEntryCount)
     return CalcWindowSizePixel(aItemSize);
 }
 
+void SvxColorValueSet::Resize()
+{
+    Window *pParent = GetParent();
+    //don't do this for the drop down color palettes
+    if (pParent && pParent->GetType() != WINDOW_FLOATINGWINDOW)
+        layoutToGivenHeight(GetOutputSizePixel().Height(), GetItemCount());
+    ValueSet::Resize();
+}
+
 Size SvxColorValueSet::layoutToGivenHeight(sal_uInt32 nHeight, sal_uInt32 nEntryCount)
 {
     if(!nEntryCount)