moved skinned ui to separate plugin

git-svn-id: http://svn.code.sf.net/p/qmmp-dev/code/trunk/qmmp@2252 90c681e8-e032-0410-971d-27865f9a5e38

4 files changed, 237 insertions, 2 deletions

diff --git a/src/qmmpui/qmmpui.pro b/src/qmmpui/qmmpui.pro
index b0e6ac46f..b32bdf587 100644
--- a/src/qmmpui/qmmpui.pro
+++ b/src/qmmpui/qmmpui.pro
@@ -38,7 +38,9 @@ HEADERS += general.h \
     tageditor_p.h \
     playlistmanager.h \
     metadataformatter.h \
-    templateeditor.h
+    templateeditor.h \
+    uifactory.h \
+    uiloader.h
 SOURCES += general.cpp \
     generalhandler.cpp \
     playlistparser.cpp \
@@ -55,7 +57,8 @@ SOURCES += general.cpp \
     tageditor.cpp \
     playlistmanager.cpp \
     metadataformatter.cpp \
-    templateeditor.cpp
+    templateeditor.cpp \
+    uiloader.cpp
 FORMS += forms/detailsdialog.ui \
     forms/tageditor.ui \
     forms/templateeditor.ui
diff --git a/src/qmmpui/uifactory.h b/src/qmmpui/uifactory.h
new file mode 100644
index 000000000..bccb632aa
--- /dev/null
+++ b/src/qmmpui/uifactory.h
@@ -0,0 +1,78 @@
+/***************************************************************************
+ *   Copyright (C) 2011 by Ilya Kotov                                      *
+ *   forkotov02@hotmail.ru                                                 *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   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 General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+#ifndef UIFACTORY_H
+#define UIFACTORY_H
+
+class QObject;
+class QTranslator;
+class QDialog;
+class QString;
+class QWidget;
+class Control;
+class General;
+
+/*! @brief Helper class to store user interface plugin properies.
+ */
+class UiProperties
+{
+public:
+    /*!
+     * Constructor
+     */
+    UiProperties()
+    {
+        hasAbout = false;
+    }
+    QString name;        /*!< File dialog plugin full name */
+    QString shortName;   /*!< File dialog short name for internal usage */
+    bool hasAbout;       /*!< Should be \b true if plugin has about dialog, otherwise returns \b false */
+};
+/*! @brief User interface plugin interface.
+ * @author Ilya Kotov <forkotov02@hotmail.ru>
+ */
+class UiFactory
+{
+public:
+    /*!
+     * Object destructor.
+     */
+    virtual ~UiFactory() {}
+    /*!
+     * Returns user interface plugin properties.
+     */
+    virtual const UiProperties properties() const = 0;
+    /*!
+     * Creates user interface instance.
+     */
+    virtual QObject *create() = 0;
+    /*!
+     * Shows about dialog.
+     * @param parent Parent widget.
+     */
+    virtual void showAbout(QWidget *parent) = 0;
+    /*!
+     * Creates QTranslator object of the system locale. Should return \b 0 if translation doesn't exist.
+     * @param parent Parent object.
+     */
+    virtual QTranslator *createTranslator(QObject *parent) = 0;
+};
+
+Q_DECLARE_INTERFACE(UiFactory, "UiFactory/1.0")
+#endif
diff --git a/src/qmmpui/uiloader.cpp b/src/qmmpui/uiloader.cpp
new file mode 100644
index 000000000..09979d18a
--- /dev/null
+++ b/src/qmmpui/uiloader.cpp
@@ -0,0 +1,96 @@
+/***************************************************************************
+ *   Copyright (C) 2011 by Ilya Kotov                                      *
+ *   forkotov02@hotmail.ru                                                 *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   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 General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include <QtGui>
+#include <QObject>
+#include <QList>
+#include <QApplication>
+#include <qmmp/qmmp.h>
+#include "uiloader.h"
+
+QList<UiFactory*> *UiLoader::m_factories = 0;
+QStringList UiLoader::m_files;
+
+void UiLoader::checkFactories()
+{
+    if (!m_factories)
+    {
+        m_files.clear();
+        m_factories = new QList<UiFactory *>;
+        QDir pluginsDir(Qmmp::pluginsPath());
+        pluginsDir.cd("Ui");
+        foreach (QString fileName, pluginsDir.entryList(QDir::Files))
+        {
+            QPluginLoader loader(pluginsDir.absoluteFilePath(fileName));
+            QObject *plugin = loader.instance();
+            if (loader.isLoaded())
+                qDebug("UiLoader: plugin loaded - %s", qPrintable(fileName));
+            else
+                qWarning("UiLoader: %s", qPrintable(loader.errorString()));
+
+            UiFactory *factory = 0;
+            if (plugin)
+                factory = qobject_cast<UiFactory *>(plugin);
+
+            if (factory)
+            {
+                m_factories->append(factory);
+                m_files << pluginsDir.absoluteFilePath(fileName);
+                qApp->installTranslator(factory->createTranslator(qApp));
+            }
+        }
+    }
+}
+
+QList<UiFactory*> *UiLoader::factories()
+{
+    checkFactories();
+    return m_factories;
+}
+
+QStringList UiLoader::files()
+{
+    checkFactories();
+    return m_files;
+}
+
+void UiLoader::setCurrentUiFactory(UiFactory* factory)
+{
+    checkFactories();
+    if (!m_factories->contains(factory))
+        return;
+    QSettings settings (Qmmp::configFile(), QSettings::IniFormat);
+    settings.setValue ("Ui/current_plugin", factory->properties().shortName);
+}
+
+UiFactory *UiLoader::currentUiFactory()
+{
+    checkFactories();
+    QSettings settings (Qmmp::configFile(), QSettings::IniFormat);
+    QString name = settings.value("Ui/current_plugin", "skinned").toString();
+    foreach(UiFactory *factory, *m_factories)
+    {
+        if (factory->properties().shortName == name)
+            return factory;
+    }
+    if (!m_factories->isEmpty())
+        return m_factories->at(0);
+    return 0;
+}
diff --git a/src/qmmpui/uiloader.h b/src/qmmpui/uiloader.h
new file mode 100644
index 000000000..0852ca901
--- /dev/null
+++ b/src/qmmpui/uiloader.h
@@ -0,0 +1,58 @@
+/***************************************************************************
+ *   Copyright (C) 2011 by Ilya Kotov                                      *
+ *   forkotov02@hotmail.ru                                                 *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   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 General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+#ifndef UI_H
+#define UI_H
+
+#include <QStringList>
+#include <QMap>
+#include "uifactory.h"
+
+/*! @brief The UiLoader provides user interface plugins access
+ * @author Ilya Kotov <forkotov02@hotmail.ru>
+ */
+class UiLoader
+{
+public:
+    /*!
+     * Returns a list of the loaded ui plugin factories.
+     */
+    static QList<UiFactory*> *factories();
+    /*!
+     * Returns a list of the loaded ui plugin files.
+     */
+    static QStringList files();
+    /*!
+     * Selects active user interface factory.
+     * @param factory Ui plugin factory.
+     */
+    static void setCurrentUiFactory(UiFactory* factory);
+    /*!
+     * Returns \b true if general plugin is enabled, otherwise returns \b false
+     * @param factory General plugin factory.
+     */
+    static UiFactory *currentUiFactory();
+
+private:
+    static QList<UiFactory*> *m_factories;
+    static QStringList m_files;
+    static void checkFactories();
+};
+
+#endif //UI_H