proxy model with first 4 items used as favorites

qmlcomponents/CMakeLists.txt

@@ -3,6 +3,7 @@ project(satellitecomponents)
 set(satellitecomponents_SRCS
     satellitecomponentsplugin.cpp
     applicationlistmodel.cpp
+    favoritesmodel.cpp
     )
 
 add_library(satellitecomponentsplugin SHARED ${satellitecomponents_SRCS})

qmlcomponents/applicationlistmodel.cpp

@@ -19,6 +19,7 @@
 
 // Self
 #include "applicationlistmodel.h"
+#include "favoritesmodel.h"
 
 // Qt
 #include <QByteArray>
@@ -37,6 +38,9 @@
 ApplicationListModel::ApplicationListModel(QObject *parent)
     : QAbstractListModel(parent)
 {
+    m_favoritesModel = new FavoritesModel(this);
+    m_favoritesModel->setSourceModel(this);
+
     //can't use the new syntax as this signal is overloaded
     connect(KSycoca::self(), SIGNAL(databaseChanged(const QStringList &)),
             this, SLOT(sycocaDbChanged(const QStringList &)));
@@ -46,6 +50,11 @@ ApplicationListModel::~ApplicationListModel()
 {
 }
 
+FavoritesModel *ApplicationListModel::favoritesModel()
+{
+    return m_favoritesModel;
+}
+
 QHash<int, QByteArray> ApplicationListModel::roleNames() const
 {
     QHash<int, QByteArray> roleNames;

qmlcomponents/applicationlistmodel.h

@@ -27,6 +27,8 @@
 
 class QString;
 
+class FavoritesModel;
+
 struct ApplicationData {
     QString name;
     QString icon;
@@ -39,11 +41,13 @@ class ApplicationListModel : public QAbstractListModel {
 
     Q_PROPERTY(int count READ count NOTIFY countChanged)
     Q_PROPERTY(QStringList appOrder READ appOrder WRITE setAppOrder NOTIFY appOrderChanged)
+    Q_PROPERTY(FavoritesModel *favoritesModel READ favoritesModel CONSTANT)
 
 public:
     ApplicationListModel(QObject *parent = 0);
     virtual ~ApplicationListModel();
 
+    FavoritesModel *favoritesModel();
     int rowCount(const QModelIndex &parent = QModelIndex()) const Q_DECL_OVERRIDE;
 
     int count() { return m_applicationList.count(); }
@@ -81,6 +85,7 @@ private:
 
     QStringList m_appOrder;
     QHash<QString, int> m_appPositions;
+    FavoritesModel *m_favoritesModel;
 };
 
 #endif // APPLICATIONLISTMODEL_H

qmlcomponents/favoritesmodel.cpp

@@ -0,0 +1,38 @@
+/*
+ *   Copyright 2015 by Marco Martin <mart@kde.org>
+
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU Library General Public License as
+ *   published by the Free Software Foundation; either version 2, 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 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 "favoritesmodel.h"
+
+#include <QDebug>
+
+FavoritesModel::FavoritesModel(QObject *parent)
+    : QIdentityProxyModel(parent)
+{
+}
+
+FavoritesModel::~FavoritesModel()
+{
+}
+
+QHash<int, QByteArray> FavoritesModel::roleNames() const
+{
+    return sourceModel()->roleNames();
+}
+
+#include "moc_favoritesmodel.cpp"

qmlcomponents/favoritesmodel.h

@@ -0,0 +1,48 @@
+/*
+ *   Copyright 2015 by Marco MArtin <mart@kde.org>
+
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU Library General Public License as
+ *   published by the Free Software Foundation; either version 2, 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 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 FAVORITESMODEL_H
+#define FAVORITESMODEL_H
+
+#include <QIdentityProxyModel>
+
+
+class QTimer;
+
+
+class FavoritesModel : public QIdentityProxyModel
+{
+    Q_OBJECT
+
+public:
+    FavoritesModel(QObject *parent = 0);
+    ~FavoritesModel();
+
+    QHash<int, QByteArray> roleNames() const;
+
+    int count() const
+    {
+        return qMin(rowCount(), 4);
+    }
+
+private:
+
+};
+
+#endif

qmlcomponents/satellitecomponentsplugin.cpp

@@ -28,6 +28,7 @@
 #include <kdeclarative/kdeclarative.h>
 
 #include "applicationlistmodel.h"
+#include "favoritesmodel.h"
 
 void SatelliteComponentsPlugin::initializeEngine(QQmlEngine *engine, const char *uri)
 {
@@ -45,6 +46,7 @@ void SatelliteComponentsPlugin::registerTypes(const char *uri)
     Q_ASSERT(uri == QLatin1String("org.kde.satellite.components"));
 
     qmlRegisterType<ApplicationListModel>(uri, 0, 1, "ApplicationListModel");
+    qmlRegisterType<FavoritesModel>();
 }