Add KarambaManager for easier loading of SuperKaramba themes

svn path=/trunk/KDE/kdebase/workspace/plasma/lib/; revision=670527

CMakeLists.txt

@@ -13,6 +13,7 @@ set(plasma_LIB_SRCS
    plasma_export.h
    svg.cpp
    theme.cpp
+   karambamanager.cpp
    widgets/checkbox.cpp
    widgets/icon.cpp
    widgets/lineedit.cpp

corona.cpp

@@ -32,6 +32,7 @@
 #include "applet.h"
 #include "dataengine.h"
 #include "widgets/vboxlayout.h"
+#include "karambamanager.h"
 
 #ifdef ICON_DEMO
 #include "widgets/icon.h"
@@ -40,9 +41,6 @@
 #include "corona.h"
 
 using namespace Plasma;
-extern "C" {
-    typedef QGraphicsItem* (*loadKaramba)(const KUrl &theme, QGraphicsView *view);
-}
 
 namespace Plasma
 {
@@ -116,23 +114,6 @@ void Corona::init()
     kDebug() << "=========================" << endl;
     */
 
-    // Loading SuperKaramba themes example
-    /*
-    QString karambaLib = QFile::encodeName(KLibLoader::self()->findLibrary(QLatin1String("libsuperkaramba")));
-    KLibLoader* loader = KLibLoader::self();
-    KLibrary* lib = loader->library(karambaLib);
-
-    if (lib) {
-        loadKaramba startKaramba = 0;
-        startKaramba = (loadKaramba)lib->resolveFunction("startKaramba");
-        if (startKaramba) {
-            startKaramba(KUrl("~/themes/aero_aio.skz"), this);
-        }
-
-        lib->unload();
-    }
-    */
-
 //    connect(this, SIGNAL(customContextMenuRequested(QPoint)), this, SLOT(displayContextMenu(QPoint)));
     d->engineExplorerAction = new QAction(i18n("Engine Explorer"), this);
     connect(d->engineExplorerAction, SIGNAL(triggered(bool)), this, SLOT(launchExplorer(bool)));
@@ -205,6 +186,16 @@ void Corona::addPlasmoid(const QString& name)
     }
 }
 
+void Corona::addKaramba(const KUrl& path)
+{
+    QGraphicsItemGroup* karamba = KarambaManager::loadKaramba(path, this);
+    if (karamba) {
+        addItem(karamba);
+    } else {
+        kDebug() << "Karamba " << path << " could not be loaded." << endl;
+    }
+}
+
 void Corona::dragEnterEvent( QGraphicsSceneDragDropEvent *event)
 {
     kDebug() << "Corona::dragEnterEvent(QGraphicsSceneDragDropEvent* event)" << endl;

corona.h

@@ -81,6 +81,13 @@ public Q_SLOTS:
      */
     void addPlasmoid(const QString& name);
 
+    /**
+     * Adds a SuperKaramba theme to the scene
+     *
+     * @param path the path to the theme file
+     */
+    void addKaramba(const KUrl& path);
+
 protected:
     void dragEnterEvent(QGraphicsSceneDragDropEvent* event);
     void dragLeaveEvent(QGraphicsSceneDragDropEvent* event);

karambamanager.cpp

@@ -0,0 +1,48 @@
+/*
+ *   Copyright (C) 2007 Alexander Wiedenbruch <wirr01@gmail.com>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU Library General Public License version 2 as
+ *   published by the Free Software Foundation
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details
+ *
+ *   You should have received a copy of the GNU Library General Public
+ *   License along with this program; if not, write to the
+ *   Free Software Foundation, Inc.,
+ *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+#include "karambamanager.h"
+
+#include <QFile>
+
+#include <KLibLoader>
+#include <KLibrary>
+#include <KDebug>
+
+QGraphicsItemGroup* KarambaManager::loadKaramba(const KUrl &themePath, QGraphicsScene *scene)
+{
+    QString karambaLib = QFile::encodeName(KLibLoader::self()->findLibrary(QLatin1String("libsuperkaramba")));
+
+    QGraphicsItemGroup *karamba = 0;
+
+    KLibrary *lib = KLibLoader::self()->library(karambaLib);
+    if (lib) {
+        startKaramba createKaramba = 0;
+        createKaramba = (startKaramba)lib->resolveFunction("startKaramba");
+        if (createKaramba) {
+            karamba = createKaramba(themePath, scene->views()[0]);
+        }
+    } else {
+        kWarning() << "Could not load " << karambaLib << endl;
+    }
+
+    return karamba;
+}
+
+#include "karambamanager.moc"
+

karambamanager.h

@@ -0,0 +1,36 @@
+/*
+ *   Copyright (C) 2007 Alexander Wiedenbruch <wirr01@gmail.com>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU Library General Public License version 2 as
+ *   published by the Free Software Foundation
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details
+ *
+ *   You should have received a copy of the GNU Library General Public
+ *   License along with this program; if not, write to the
+ *   Free Software Foundation, Inc.,
+ *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+#ifndef KARAMBA_MANAGER_H
+#define KARAMBA_MANAGER_H
+
+#include <QObject>
+#include <QGraphicsScene>
+#include <KUrl>
+
+extern "C" {
+    typedef QGraphicsItemGroup* (*startKaramba)(const KUrl &theme, QGraphicsView *view);
+}
+
+class KarambaManager
+{
+    public:
+        static QGraphicsItemGroup* loadKaramba(const KUrl &themePath, QGraphicsScene *scene);
+};
+
+#endif