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/***************************************************************************
* Copyright (C) 2010 - 2011 by Ingomar Wesp <ingomar@wesp.name> *
* *
* 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 QUICKLAUNCH_ICONGRIDLAYOUT_H
#define QUICKLAUNCH_ICONGRIDLAYOUT_H
// Qt
#include <Qt>
#include <QtGlobal>
#include <QtCore/QList>
#include <QtCore/QSizeF>
#include <QtGui/QGraphicsLayout>
class QEvent;
class QRectF;
class QGraphicsLayoutItem;
namespace Quicklaunch {
class IconGridLayout : public QGraphicsLayout {
public:
enum Mode {
PreferColumns, /**< Prefer columns over rows. */
PreferRows /**< Prefer rows over columns. */
};
IconGridLayout(QGraphicsLayoutItem *parent = 0);
~IconGridLayout();
Mode mode() const;
void setMode(Mode mode);
int cellSpacing() const;
void setCellSpacing(int cellSpacing);
int maxSectionCount() const;
/**
* Depending on the mode, @c setMaxSectionCount limits either the
* number of rows or the number of columns that are displayed. In
* @c PreferColumns mode, @a maxSectionCount limites the maximum
* number of columns while in @c PreferRows mode, it applies to
* the maximum number of rows.
*
* Setting @a maxSectionCount to @c 0 disables the limitation.
*
* @param maxSectionCount the maximum number of rows or columns
* (depending on the mode) that should be displayed.
*/
void setMaxSectionCount(int maxSectionCount);
bool maxSectionCountForced() const;
void setMaxSectionCountForced(bool enable);
void addItem(QGraphicsLayoutItem *item);
void insertItem(int index, QGraphicsLayoutItem *item);
int count() const;
int columnCount() const;
int rowCount() const;
QGraphicsLayoutItem *itemAt(int index) const;
QGraphicsLayoutItem *itemAt(int row, int column) const;
void moveItem(int from, int to);
void removeAt(int index);
void setGeometry(const QRectF &rect);
QSizeF sizeHint(Qt::SizeHint which, const QSizeF &constraint = QSizeF()) const;
static const int DEFAULT_CELL_SPACING;
private:
void computeGridParameters(
QList<int> &rowHeights, QList<int> &columnWidths,
QSizeF &preferredSize) const;
void updateGridParameters();
QList<QGraphicsLayoutItem*> m_items;
Mode m_mode;
int m_cellSpacing;
int m_maxSectionCount;
bool m_maxSectionCountForced;
int m_rowCount;
int m_columnCount;
QList<int> m_rowHeights;
QList<int> m_columnWidths;
QSizeF m_preferredSizeHint;
};
}
#endif /* QUICKLAUNCH_ICONGRIDLAYOUT_H */
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