toolbars: Improve the toolbars look in Windows Vista or later.

Change-Id: I389ef70c76a3a9c837ad5406c417804ad77be948

vcl/inc/svdata.hxx

@@ -308,6 +308,7 @@ struct ImplSVNWFData
     bool                    mbMenuBarDockingAreaCommonBG:1; // e.g. WinXP default theme
     bool                    mbDockingAreaSeparateTB:1;      // individual toolbar backgrounds
                                                             // instead of one for docking area
+    bool                    mbDockingAreaAvoidTBFrames:1;   //< don't draw frames around the individual toolbars if mbDockingAreaSeparateTB is false
     bool                    mbToolboxDropDownSeparate:1;    // two adjacent buttons for
                                                             // toolbox dropdown buttons
     bool                    mbFlatMenu:1;                   // no popup 3D border

vcl/source/window/dockingarea.cxx

@@ -171,24 +171,27 @@ void DockingAreaWindow::Paint( const Rectangle& )
             DrawNativeControl( CTRL_TOOLBAR, IsHorizontal() ? PART_DRAW_BACKGROUND_HORZ : PART_DRAW_BACKGROUND_VERT,
                                aCtrlRegion, nState, aControlValue, rtl::OUString() );
 
-            // each toolbar gets a thin border to better recognize its borders on the homogeneous docking area
-            sal_uInt16 nChildren = GetChildCount();
-            for( sal_uInt16 n = 0; n < nChildren; n++ )
+            if( !ImplGetSVData()->maNWFData.mbDockingAreaAvoidTBFrames )
             {
-                Window* pChild = GetChild( n );
-                if ( pChild->IsVisible() )
+                // each toolbar gets a thin border to better recognize its borders on the homogeneous docking area
+                sal_uInt16 nChildren = GetChildCount();
+                for( sal_uInt16 n = 0; n < nChildren; n++ )
                 {
-                    Point aPos = pChild->GetPosPixel();
-                    Size aSize = pChild->GetSizePixel();
-                    Rectangle aRect( aPos, aSize );
-
-                    SetLineColor( GetSettings().GetStyleSettings().GetLightColor() );
-                    DrawLine( aRect.TopLeft(), aRect.TopRight() );
-                    DrawLine( aRect.TopLeft(), aRect.BottomLeft() );
-
-                    SetLineColor( GetSettings().GetStyleSettings().GetSeparatorColor() );
-                    DrawLine( aRect.BottomLeft(), aRect.BottomRight() );
-                    DrawLine( aRect.TopRight(), aRect.BottomRight() );
+                    Window* pChild = GetChild( n );
+                    if ( pChild->IsVisible() )
+                    {
+                        Point aPos = pChild->GetPosPixel();
+                        Size aSize = pChild->GetSizePixel();
+                        Rectangle aRect( aPos, aSize );
+
+                        SetLineColor( GetSettings().GetStyleSettings().GetLightColor() );
+                        DrawLine( aRect.TopLeft(), aRect.TopRight() );
+                        DrawLine( aRect.TopLeft(), aRect.BottomLeft() );
+
+                        SetLineColor( GetSettings().GetStyleSettings().GetSeparatorColor() );
+                        DrawLine( aRect.BottomLeft(), aRect.BottomRight() );
+                        DrawLine( aRect.TopRight(), aRect.BottomRight() );
+                    }
                 }
             }
         }

vcl/win/source/gdi/salnativewidgets-luna.cxx

@@ -1007,7 +1007,39 @@ sal_Bool ImplDrawNativeControl( HWND hWnd, HDC hDC, HTHEME hTheme, RECT rc,
             {
                 const ToolbarValue *pValue = static_cast<const ToolbarValue*>(&aValue);
                 if( pValue->mbIsTopDockingArea )
-                    rc.top = 0; // extend potential gradient to cover menu bar as well
+                {
+                    // make it more compatible with Aero
+                    if( ImplGetSVData()->maNWFData.mbTransparentMenubar )
+                    {
+                        const long GRADIENT_HEIGHT = 32;
+
+                        long gradient_break = rc.top;
+                        GRADIENT_RECT g_rect[1] = { { 0, 1 } };
+
+                        // very slow gradient at the top (if we have space for that)
+                        if ( rc.bottom - rc.top > GRADIENT_HEIGHT )
+                        {
+                            gradient_break = rc.bottom - GRADIENT_HEIGHT;
+
+                            TRIVERTEX vert[2] = {
+                                { rc.left, rc.top,          0xff00, 0xff00, 0xff00, 0xff00 },
+                                { rc.right, gradient_break, 0xfa00, 0xfa00, 0xfa00, 0xff00 },
+                            };
+                            GradientFill( hDC, vert, 2, g_rect, 1, GRADIENT_FILL_RECT_V );
+                        }
+
+                        // gradient at the bottom
+                        TRIVERTEX vert[2] = {
+                            { rc.left, gradient_break, 0xfa00, 0xfa00, 0xfa00, 0xff00 },
+                            { rc.right, rc.bottom,     0xe500, 0xe900, 0xee00, 0xff00 }
+                        };
+                        GradientFill( hDC, vert, 2, g_rect, 1, GRADIENT_FILL_RECT_V );
+
+                        return sal_True;
+                    }
+                    else
+                        rc.top = 0; // extend potential gradient to cover menu bar as well
+                }
             }
             return ImplDrawTheme( hTheme, hDC, iPart, iState, rc, aCaption);
         }
@@ -1566,6 +1598,9 @@ void WinSalGraphics::updateSettingsNative( AllSettings& rSettings )
         pSVData->maNWFData.mnMenuFormatBorderY = 2;
         pSVData->maNWFData.maMenuBarHighlightTextColor = aStyleSettings.GetMenuTextColor();
         GetSalData()->mbThemeMenuSupport = TRUE;
+
+        // don't draw frame around each and every toolbar
+        pSVData->maNWFData.mbDockingAreaAvoidTBFrames = true;
     }
 
     rSettings.SetStyleSettings( aStyleSettings );