make svg stylesheet private

there isn't anymore the "SVG" magic parameter in Theme:: styleSheet()

src/plasma/private/theme_p.cpp

@@ -289,29 +289,6 @@ const QString ThemePrivate::processStyleSheet(const QString &css)
             cachedStyleSheets.insert(DEFAULTSTYLE, stylesheet);
         }
 
-        return stylesheet;
-    } else if (css == "SVG") {
-        stylesheet = cachedStyleSheets.value(SVGSTYLE);
-        if (stylesheet.isEmpty()) {
-            QString skel = ".ColorScheme-%1{color:%2;}";
-
-            stylesheet += skel.arg("Text","%textcolor");
-            stylesheet += skel.arg("Background","%backgroundcolor");
-
-            stylesheet += skel.arg("ButtonText","%buttontextcolor");
-            stylesheet += skel.arg("ButtonBackground","%buttonbackgroundcolor");
-            stylesheet += skel.arg("ButtonHover","%buttonhovercolor");
-            stylesheet += skel.arg("ButtonFocus","%buttonfocuscolor");
-
-            stylesheet += skel.arg("ViewText","%viewtextcolor");
-            stylesheet += skel.arg("ViewBackground","%viewbackgroundcolor");
-            stylesheet += skel.arg("ViewHover","%viewhovercolor");
-            stylesheet += skel.arg("ViewFocus","%viewfocuscolor");
-
-            stylesheet = processStyleSheet(stylesheet);
-            cachedStyleSheets.insert(SVGSTYLE, stylesheet);
-        }
-
         return stylesheet;
     } else {
         stylesheet = css;
@@ -348,6 +325,32 @@ const QString ThemePrivate::processStyleSheet(const QString &css)
     return stylesheet;
 }
 
+const QString ThemePrivate::svgStyleSheet()
+{
+    QString stylesheet = cachedStyleSheets.value(SVGSTYLE);
+    if (stylesheet.isEmpty()) {
+        QString skel = ".ColorScheme-%1{color:%2;}";
+
+        stylesheet += skel.arg("Text","%textcolor");
+        stylesheet += skel.arg("Background","%backgroundcolor");
+
+        stylesheet += skel.arg("ButtonText","%buttontextcolor");
+        stylesheet += skel.arg("ButtonBackground","%buttonbackgroundcolor");
+        stylesheet += skel.arg("ButtonHover","%buttonhovercolor");
+        stylesheet += skel.arg("ButtonFocus","%buttonfocuscolor");
+
+        stylesheet += skel.arg("ViewText","%viewtextcolor");
+        stylesheet += skel.arg("ViewBackground","%viewbackgroundcolor");
+        stylesheet += skel.arg("ViewHover","%viewhovercolor");
+        stylesheet += skel.arg("ViewFocus","%viewfocuscolor");
+
+        stylesheet = processStyleSheet(stylesheet);
+        cachedStyleSheets.insert(SVGSTYLE, stylesheet);
+    }
+
+    return stylesheet;
+}
+
 void ThemePrivate::settingsFileChanged(const QString &file)
 {
     if (file.endsWith(themeRcFile)) {

src/plasma/private/theme_p.h

@@ -78,6 +78,7 @@ public:
     void processWallpaperSettings(KConfigBase *metadata);
 
     const QString processStyleSheet(const QString &css);
+    const QString svgStyleSheet();
     QColor color(Theme::ColorRole role) const;
 
 public Q_SLOTS:

src/plasma/svg.cpp

@@ -20,6 +20,7 @@
 
 #include "svg.h"
 #include "private/svg_p.h"
+#include "private/theme_p.h"
 
 #include <cmath>
 
@@ -413,7 +414,7 @@ void SvgPrivate::createRenderer()
     //kDebug() << "FAIL! **************************";
     //kDebug() << path << "**";
 
-    QString styleSheet = cacheAndColorsTheme()->styleSheet("SVG");
+    QString styleSheet = cacheAndColorsTheme()->d->svgStyleSheet();
     styleCrc = qChecksum(styleSheet.toUtf8(), styleSheet.size());
 
     QHash<QString, SharedSvgRenderer::Ptr>::const_iterator it = s_renderers.constFind(styleCrc + path);

src/plasma/theme.h

@@ -34,6 +34,7 @@ namespace Plasma
 {
 
 class ThemePrivate;
+class SvgPrivate;
 
 /**
  * @class Theme plasma/theme.h <Plasma/Theme>
@@ -312,7 +313,7 @@ class PLASMA_EXPORT Theme : public QObject
         void themeChanged();
 
     private:
-        friend class ThemeSingleton;
+        friend class SvgPrivate;
         friend class ThemePrivate;
         ThemePrivate *d;
 };