Merged very early alpha-version of Dolphin 2.0

Dolphin 2.0 will get a new view-engine with the
following improvements:
- Better performance
- Animated transitions
- No clipped filenames due to dynamic item-sizes
- Grouping support for all view-modes
- Non-rectangular selection areas
- Simplified code for better maintenance

More details will be provided in a blog-entry during
the next days.

Please note that the code is in a very
early alpha-stage and although the most tricky parts
have been implemented already very basic things like
drag and drop or selections have not been pushed yet.
Those things are rather trivial to implement but this
still will take some time.

1 files changed, 118 insertions, 0 deletions

diff --git a/src/kitemviews/kitemlistcontroller.h b/src/kitemviews/kitemlistcontroller.h
new file mode 100644
index 000000000..4407e3445
--- /dev/null
+++ b/src/kitemviews/kitemlistcontroller.h
@@ -0,0 +1,118 @@
+/***************************************************************************
+ *   Copyright (C) 2011 by Peter Penz <[email protected]>             *
+ *                                                                         *
+ *   Based on the Itemviews NG project from Trolltech Labs:                *
+ *   http://qt.gitorious.org/qt-labs/itemviews-ng                          *
+ *                                                                         *
+ *   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.,                                       *
+ *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
+ ***************************************************************************/
+
+#ifndef KITEMLISTCONTROLLER_H
+#define KITEMLISTCONTROLLER_H
+
+#include <libdolphin_export.h>
+
+#include <QObject>
+
+class KItemModelBase;
+class KItemListSelectionManager;
+class KItemListView;
+class QGraphicsSceneHoverEvent;
+class QGraphicsSceneDragDropEvent;
+class QGraphicsSceneMouseEvent;
+class QGraphicsSceneResizeEvent;
+class QGraphicsSceneWheelEvent;
+class QHideEvent;
+class QInputMethodEvent;
+class QKeyEvent;
+class QShowEvent;
+class QTransform;
+
+/**
+ * @brief Controls the view, model and selection of an item-list.
+ *
+ * For a working item-list it is mandatory to set a compatible view and model
+ * with KItemListController::setView() and KItemListController::setModel().
+ *
+ * @see KItemListView
+ * @see KItemModelBase
+ * @see KItemListSelectionManager
+ */
+class LIBDOLPHINPRIVATE_EXPORT KItemListController : public QObject
+{
+    Q_OBJECT
+    Q_ENUMS(SelectionBehavior)
+    Q_PROPERTY(KItemModelBase* model READ model WRITE setModel)
+    Q_PROPERTY(KItemListView *view READ view WRITE setView)
+    Q_PROPERTY(SelectionBehavior selectionBehavior READ selectionBehavior WRITE setSelectionBehavior)
+
+public:
+    enum SelectionBehavior {
+        NoSelection,
+        SingleSelection,
+        MultiSelection
+    };
+
+    KItemListController(QObject* parent = 0);
+    virtual ~KItemListController();
+
+    void setModel(KItemModelBase* model);
+    KItemModelBase* model() const;
+
+    void setView(KItemListView* view);
+    KItemListView* view() const;
+
+    KItemListSelectionManager* selectionManager() const;
+
+    void setSelectionBehavior(SelectionBehavior behavior);
+    SelectionBehavior selectionBehavior() const;
+
+    virtual bool showEvent(QShowEvent* event);
+    virtual bool hideEvent(QHideEvent* event);
+    virtual bool keyPressEvent(QKeyEvent* event);
+    virtual bool inputMethodEvent(QInputMethodEvent* event);
+    virtual bool mousePressEvent(QGraphicsSceneMouseEvent* event, const QTransform& transform);
+    virtual bool mouseMoveEvent(QGraphicsSceneMouseEvent* event, const QTransform& transform);
+    virtual bool mouseReleaseEvent(QGraphicsSceneMouseEvent* event, const QTransform& transform);
+    virtual bool mouseDoubleClickEvent(QGraphicsSceneMouseEvent* event, const QTransform& transform);
+    virtual bool dragEnterEvent(QGraphicsSceneDragDropEvent* event, const QTransform& transform);
+    virtual bool dragLeaveEvent(QGraphicsSceneDragDropEvent* event, const QTransform& transform);
+    virtual bool dragMoveEvent(QGraphicsSceneDragDropEvent* event, const QTransform& transform);
+    virtual bool dropEvent(QGraphicsSceneDragDropEvent* event, const QTransform& transform);
+    virtual bool hoverEnterEvent(QGraphicsSceneHoverEvent* event, const QTransform& transform);
+    virtual bool hoverMoveEvent(QGraphicsSceneHoverEvent* event, const QTransform& transform);
+    virtual bool hoverLeaveEvent(QGraphicsSceneHoverEvent* event, const QTransform& transform);
+    virtual bool wheelEvent(QGraphicsSceneWheelEvent* event, const QTransform& transform);
+    virtual bool resizeEvent(QGraphicsSceneResizeEvent* event, const QTransform& transform);
+    virtual bool processEvent(QEvent* event, const QTransform& transform);
+
+signals:
+    void itemClicked(int index, Qt::MouseButton button);
+    void itemExpansionToggleClicked(int index);
+
+    void modelChanged(KItemModelBase* current, KItemModelBase* previous);
+    void viewChanged(KItemListView* current, KItemListView* previous);
+
+private:
+    SelectionBehavior m_selectionBehavior;
+    KItemModelBase* m_model;
+    KItemListView* m_view;
+    KItemListSelectionManager* m_selectionManager;
+};
+
+#endif
+
+