vcl: Check SH_MenuBar_MouseTracking when menubar is drawn on KDE

If QStyle::SH_MenuBar_MouseTracking is 0, it makes a mouse rollover
effect minimize. By this, a menubar item of CDE and Motif styles becomes
closer to standard behavior.

Change-Id: I87dccbd30bf7b9f0d82d1a6e67355c1b25d22dc8
Reviewed-on: https://gerrit.libreoffice.org/4018Reviewed-by: David Tardon <dtardon@redhat.com>
Tested-by: David Tardon <dtardon@redhat.com>

vcl/unx/kde/salnativewidgets-kde.cxx

@@ -777,7 +777,8 @@ sal_Bool WidgetPainter::drawStyledWidget( QWidget *pWidget,
             int nMenuItem = ( nStyle & QStyle::Style_Enabled )? m_nMenuBarEnabledItem: m_nMenuBarDisabledItem;
             QMenuItem *pMenuItem = static_cast<QMenuBar*>( pWidget )->findItem( nMenuItem );
 
-            if ( nStyle & QStyle::Style_MouseOver )
+            if ( ( nStyle & QStyle::Style_MouseOver )
+                && kapp->style().styleHint( QStyle::SH_MenuBar_MouseTracking ) )
                 nStyle |= QStyle::Style_Active;
 
             if ( nStyle & QStyle::Style_Selected )
@@ -1984,9 +1985,7 @@ void KDESalFrame::UpdateSettings( AllSettings& rSettings )
         aStyleSettings.SetMenuBarTextColor( aMenuFore );
         aStyleSettings.SetMenuColor( aMenuBack );
         aStyleSettings.SetMenuBarColor( aMenuBack );
-
         aStyleSettings.SetMenuHighlightColor( toColor ( qMenuCG.highlight() ) );
-        aStyleSettings.SetMenuBarRolloverColor( toColor ( qMenuCG.highlight() ) );
 
         // Menu items higlight text color, theme specific
         if ( kapp->style().inherits( "HighContrastStyle" ) ||
@@ -2002,15 +2001,22 @@ void KDESalFrame::UpdateSettings( AllSettings& rSettings )
 
         // set special menubar higlight text color
         if ( kapp->style().inherits( "HighContrastStyle" ) )
-        {
             ImplGetSVData()->maNWFData.maMenuBarHighlightTextColor = toColor( qMenuCG.highlightedText() );
-            aStyleSettings.SetMenuBarRolloverTextColor( toColor( qMenuCG.highlightedText() ) );
+        else
+            ImplGetSVData()->maNWFData.maMenuBarHighlightTextColor = aMenuFore;
+
+        // set menubar rollover color
+        if ( kapp->style().styleHint( QStyle::SH_MenuBar_MouseTracking ) )
+        {
+            aStyleSettings.SetMenuBarRolloverColor( toColor ( qMenuCG.highlight() ) );
+            aStyleSettings.SetMenuBarRolloverTextColor( ImplGetSVData()->maNWFData.maMenuBarHighlightTextColor );
         }
         else
         {
-            ImplGetSVData()->maNWFData.maMenuBarHighlightTextColor = aMenuFore;
+            aStyleSettings.SetMenuBarRolloverColor( aMenuBack );
             aStyleSettings.SetMenuBarRolloverTextColor( aMenuFore );
         }
+
         // Font
         aFont = toFont( pMenuBar->font(), rSettings.GetUILanguageTag().getLocale() );
         aStyleSettings.SetMenuFont( aFont );

vcl/unx/kde4/KDESalFrame.cxx

@@ -301,21 +301,24 @@ void KDESalFrame::UpdateSettings( AllSettings& rSettings )
         style.SetMenuBarTextColor( aMenuFore );
         style.SetMenuColor( aMenuBack );
         style.SetMenuBarColor( aMenuBack );
-
         style.SetMenuHighlightColor( toColor ( qMenuCG.color( QPalette::Highlight ) ) );
-        style.SetMenuBarRolloverColor( toColor ( qMenuCG.color( QPalette::Highlight ) ) );
-
         style.SetMenuHighlightTextColor( aMenuFore );
 
         // set special menubar higlight text color
         if ( kapp->style()->inherits( "HighContrastStyle" ) )
-        {
             ImplGetSVData()->maNWFData.maMenuBarHighlightTextColor = toColor( qMenuCG.color( QPalette::HighlightedText ) );
-            style.SetMenuBarRolloverTextColor( toColor( qMenuCG.color( QPalette::HighlightedText ) ) );
+        else
+            ImplGetSVData()->maNWFData.maMenuBarHighlightTextColor = aMenuFore;
+
+        // set menubar rollover color
+        if ( pMenuBar->style()->styleHint( QStyle::SH_MenuBar_MouseTracking ) )
+        {
+            style.SetMenuBarRolloverColor( toColor ( qMenuCG.color( QPalette::Highlight ) ) );
+            style.SetMenuBarRolloverTextColor( ImplGetSVData()->maNWFData.maMenuBarHighlightTextColor );
         }
         else
         {
-            ImplGetSVData()->maNWFData.maMenuBarHighlightTextColor = aMenuFore;
+            style.SetMenuBarRolloverColor( aMenuBack );
             style.SetMenuBarRolloverTextColor( aMenuFore );
         }
 

vcl/unx/kde4/KDESalGraphics.cxx

@@ -297,7 +297,8 @@ sal_Bool KDESalGraphics::drawNativeControl( ControlType type, ControlPart part,
         if (part == PART_MENU_ITEM)
         {
             QStyleOptionMenuItem option;
-            if ( nControlState & CTRL_STATE_ROLLOVER )
+            if ( ( nControlState & CTRL_STATE_ROLLOVER )
+                && kapp->style()->styleHint( QStyle::SH_MenuBar_MouseTracking ) )
                 option.state |= QStyle::State_Selected;
 
             if ( nControlState & CTRL_STATE_SELECTED ) // Passing State_Sunken is currently not documented.