tdf#92600: Restore ability to apply font settings to controls

SmShowSymbol handles font/fg/bg settings by itself, so make
ApplySettings noop there.

This partially reverts commit b010e407

Change-Id: Ib5074684ef1277d9b9b4646bd73dce4cbff3943e
Reviewed-on: https://gerrit.libreoffice.org/17288Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

include/vcl/ctrl.hxx

@@ -41,8 +41,6 @@ protected:
 
 private:
     bool                    mbHasControlFocus;
-    bool                    mbFont;
-    bool                    mbForeground;
     bool                    mbShowAccelerator;
     Link<>                  maGetFocusHdl;
     Link<>                  maLoseFocusHdl;

starmath/inc/dialog.hxx

@@ -327,6 +327,7 @@ class SmShowSymbol : public Control
     Link<> aDblClickHdlLink;
 
     virtual void    Paint(vcl::RenderContext& rRenderContext, const Rectangle&) SAL_OVERRIDE;
+    virtual void    ApplySettings(vcl::RenderContext& rRenderContext) SAL_OVERRIDE;
     virtual void    MouseButtonDown(const MouseEvent& rMEvt) SAL_OVERRIDE;
     virtual void    Resize() SAL_OVERRIDE;
 

starmath/source/dialog.cxx

@@ -1384,6 +1384,10 @@ void SmShowSymbol::Resize()
     Invalidate();
 }
 
+void SmShowSymbol::ApplySettings(vcl::RenderContext& /*rRenderContext*/ )
+{
+}
+
 void SmShowSymbol::setFontSize(vcl::Font &rFont) const
 {
     rFont.SetSize(Size(0, GetOutputSize().Height() - GetOutputSize().Height() / 3));

vcl/source/control/ctrl.cxx

@@ -36,8 +36,6 @@ using namespace vcl;
 void Control::ImplInitControlData()
 {
     mbHasControlFocus       = false;
-    mbFont                  = false;
-    mbForeground            = false;
     mbShowAccelerator       = false;
     mpControlData   = new ImplControlData;
 }
@@ -425,23 +423,15 @@ void Control::ApplySettings(vcl::RenderContext& rRenderContext)
 {
     const StyleSettings& rStyleSettings = rRenderContext.GetSettings().GetStyleSettings();
 
-    if (mbFont)
-    {
     vcl::Font rFont(GetCanonicalFont(rStyleSettings));
     ApplyControlFont(rRenderContext, rFont);
-    }
 
-    if (mbFont || mbForeground)
-    {
     ApplyControlForeground(rRenderContext, GetCanonicalTextColor(rStyleSettings));
     rRenderContext.SetTextFillColor();
-    }
 }
 
-void Control::ImplInitSettings(const bool _bFont, const bool _bForeground)
+void Control::ImplInitSettings(const bool, const bool)
 {
-    mbFont = _bFont;
-    mbForeground = _bForeground;
     ApplySettings(*this);
 }