1 files changed, 134 insertions, 0 deletions
diff --git a/src/kitemviews/kitemlistwidget.h b/src/kitemviews/kitemlistwidget.h
new file mode 100644
index 000000000..eb2ebf455
--- /dev/null
+++ b/src/kitemviews/kitemlistwidget.h
@@ -0,0 +1,134 @@
+/***************************************************************************
+ *   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 KITEMLISTWIDGET_H
+#define KITEMLISTWIDGET_H
+
+#include <libdolphin_export.h>
+
+#include <kitemviews/kitemliststyleoption.h>
+
+#include <QGraphicsWidget>
+
+class QPropertyAnimation;
+
+/**
+ * @brief Widget that shows a visible item from the model.
+ *
+ * For showing an item from a custom model it is required to at least overwrite KItemListWidget::paint().
+ * All properties are set by KItemListView, for each property there is a corresponding
+ * virtual protected method that allows to react on property changes.
+ */
+class LIBDOLPHINPRIVATE_EXPORT KItemListWidget : public QGraphicsWidget
+{
+    Q_OBJECT
+
+public:
+    KItemListWidget(QGraphicsItem* parent);
+    virtual ~KItemListWidget();
+
+    void setIndex(int index);
+    int index() const;
+
+    void setData(const QHash<QByteArray, QVariant>& data, const QSet<QByteArray>& roles = QSet<QByteArray>());
+    QHash<QByteArray, QVariant> data() const;
+
+    /**
+     * Draws the hover-bounding-rectangle if the item is hovered. Overwrite this method
+     * to show the data of the custom model provided by KItemListWidget::data().
+     * @reimp
+     */
+    virtual void paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget = 0);
+
+    /**
+     * Sets the visible roles to \p roles. The integer-value defines
+     * the order of the visible role: Smaller values are ordered first.
+     */
+    void setVisibleRoles(const QHash<QByteArray, int>& roles);
+    QHash<QByteArray, int> visibleRoles() const;
+
+    void setVisibleRolesSizes(const QHash<QByteArray, QSizeF> rolesSizes);
+    QHash<QByteArray, QSizeF> visibleRolesSizes() const;
+
+    void setStyleOption(const KItemListStyleOption& option);
+    const KItemListStyleOption& styleOption() const;
+
+    /**
+     * @return True if \a point is inside KItemListWidget::hoverBoundingRect(),
+     *         KItemListWidget::selectionToggleRect() or KItemListWidget::expansionToggleRect().
+     * @reimp
+     */
+    virtual bool contains(const QPointF& point) const;
+
+    /**
+     * @return Bounding rectangle for the area that acts as hovering-area. Per default
+     *         the bounding rectangle of the KItemListWidget is returned.
+     */
+    virtual QRectF hoverBoundingRect() const;
+
+    /**
+     * @return Rectangle for the selection-toggle that is used to select or deselect an item.
+     *         Per default an empty rectangle is returned which means that no selection-toggle
+     *         is available.
+     */
+    virtual QRectF selectionToggleRect() const;
+
+    /**
+     * @return Rectangle for the expansion-toggle that is used to open a sub-tree of the model.
+     *         Per default an empty rectangle is returned which means that no opening of sub-trees
+     *         is supported.
+     */
+    virtual QRectF expansionToggleRect() const;
+
+protected:
+    virtual void dataChanged(const QHash<QByteArray, QVariant>& current, const QSet<QByteArray>& roles = QSet<QByteArray>());
+    virtual void visibleRolesChanged(const QHash<QByteArray, int>& current, const QHash<QByteArray, int>& previous);
+    virtual void visibleRolesSizesChanged(const QHash<QByteArray, QSizeF>& current, const QHash<QByteArray, QSizeF>& previous);
+    virtual void styleOptionChanged(const KItemListStyleOption& current, const KItemListStyleOption& previous);
+    virtual void resizeEvent(QGraphicsSceneResizeEvent* event);
+
+    /**
+     * @return The current opacity of the hover-animation. When implementing a custom painting-code for a hover-state
+     *         this opacity value should be respected.
+     */
+    qreal hoverOpacity() const;
+
+private:
+    void setHoverOpacity(qreal opacity);
+    void clearCache();
+
+private:
+    Q_PROPERTY(qreal hoverOpacity READ hoverOpacity WRITE setHoverOpacity)
+
+    int m_index;
+    QHash<QByteArray, QVariant> m_data;
+    QHash<QByteArray, int> m_visibleRoles;
+    QHash<QByteArray, QSizeF> m_visibleRolesSizes;
+    KItemListStyleOption m_styleOption;
+
+    qreal m_hoverOpacity;
+    mutable QPixmap* m_hoverCache;
+    QPropertyAnimation* m_hoverAnimation;
+};
+#endif
+
+