Make the shadows work just a little better on dark text

svn path=/trunk/kdebase/kwin/; revision=381060

clients/keramik/keramik.cpp

@@ -1300,8 +1300,11 @@ void KeramikClient::updateCaptionBuffer()
 	if ( clientHandler->useShadowedText() )
 	{
 		p.translate( QApplication::reverseLayout() ? -1 : 1, 1 );
-		p.setPen( options()->color(ColorTitleBar, active).dark() );
-		p.setPen( black );
+		//p.setPen( options()->color(ColorTitleBar, active).dark() );
+                if (qGray(options()->color(ColorFont, active).rgb()) < 100)
+                    p.setPen( QColor(200,200,200) );
+                else
+                    p.setPen( black );
 		p.drawText( tr, flags, caption() );
 		p.translate( QApplication::reverseLayout() ? 1 : -1, -1 );
 	}

clients/plastik/plastikclient.cpp

@@ -996,7 +996,12 @@ void PlastikClient::update_captionBuffer()
     painter.drawTiledPixmap(aCaptionBuffer->rect(), *aTitleBarTile);
     if(PlastikHandler::titleShadow())
     {
-        shadow = se.makeShadow(textPixmap, QColor(0, 0, 0));
+        QColor shadowColor;
+        if (qGray(PlastikHandler::getColor(TitleFont,true).rgb()) < 100) 
+            shadowColor = QColor(255, 255, 255);
+        else
+            shadowColor = QColor(0,0,0);
+        shadow = se.makeShadow(textPixmap, shadowColor);
         painter.drawImage(1, 1, shadow);
     }
     painter.setFont(s_titleFont);