controlpanelplugins/themeplugin/src/cpthemechanger.cpp
branchRCL_3
changeset 13 90fe62538f66
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/controlpanelplugins/themeplugin/src/cpthemechanger.cpp	Tue Aug 31 15:15:28 2010 +0300
@@ -0,0 +1,133 @@
+/*
+ * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+ * All rights reserved.
+ * This component and the accompanying materials are made available
+ * under the terms of "Eclipse Public License v1.0""
+ * which accompanies this distribution, and is available
+ * at the URL "http://www.eclipse.org/legal/epl-v10.html".
+ *
+ * Initial Contributors:
+ * Nokia Corporation - initial contribution.
+ *
+ * Contributors:
+ *
+ * Description:  
+ *   
+ */
+#include <QString>
+
+#include "cpthemechanger.h"
+#include "cpthemeutil.h"
+#include "cpthemeinfo.h"
+
+#include <hbinstance.h>
+#include <restricted/hbthemeservices_r.h>
+
+/*!
+  \class CpThemeChanger
+
+  \brief CpThemeChanger provides an interface for changing the current
+  theme.
+  This API is only for use with the control panel and its theme
+  changing plugin.
+*/
+
+/*!
+  Constructor.
+*/
+CpThemeChanger::CpThemeChanger(QObject* p) :
+    QObject(p),
+    mCurrentTheme(0)
+{
+    if(hbInstance->theme()) {
+        connect(hbInstance->theme(),SIGNAL(changeFinished()), this, SLOT(changeFinished()));
+    }
+       
+    setCurrentTheme();
+}
+
+/*!
+    Returns a ThemeInfo object containing the current theme name and
+    corresponding icons.
+
+    If no repersentative icons exist, the HbIcon returned will be
+    uninitialized.
+*/
+const CpThemeInfo* CpThemeChanger::currentTheme() const
+{
+    return mCurrentTheme;
+}
+
+/*!
+ * Private helper function that gets the current theme from hbinstance and s
+ * ets class' current theme.  
+ */
+void CpThemeChanger::setCurrentTheme()
+{
+    QString themeName = "";
+    if (HbInstance::instance()) {
+        HbTheme *hbTheme = HbInstance::instance()->theme();
+        if(hbTheme) {
+            themeName = hbTheme->name();
+        }
+         
+    }
+       
+    if(mCurrentTheme && mCurrentTheme->name() == themeName) {
+        return;
+    } else {
+        //buildThemeInfo creates new theme info.
+        CpThemeInfo* tmpTheme = CpThemeUtil::buildThemeInfo(HbThemeServices::themePath(), themeName);
+         
+        //delete old value. set the new value.
+        if(tmpTheme) {
+            if(mCurrentTheme){
+                delete mCurrentTheme;
+            }
+            mCurrentTheme = tmpTheme;
+        }
+    }
+}
+
+
+/*!
+ Change a theme. Returns true on success, false otherwise.
+ */
+bool CpThemeChanger::changeTheme(const CpThemeInfo& newTheme)
+{
+    bool result = false;
+    // Skip doing this if the request is for the current theme
+    if (newTheme.name().isEmpty() || (mCurrentTheme && newTheme.name() == mCurrentTheme->name())) {
+        return result;
+    }
+
+    QString themePath = newTheme.itemData();
+    
+    if(!themePath.isEmpty()) {
+        HbThemeServices::setTheme(themePath);
+        result = true;
+    }
+    return result;
+}
+
+/*!
+ Destructor
+ */
+CpThemeChanger::~CpThemeChanger()
+{
+    delete mCurrentTheme;
+    mCurrentTheme = 0;
+}
+
+/*!
+ *  Slot to handle notification from theme server that theme change
+ *  is done.  Notify the owner.
+ */
+void CpThemeChanger::changeFinished()
+{
+    setCurrentTheme();
+    emit themeChangeFinished();
+}
+
+// End of file
+