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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (qt-info@nokia.com)
**
** This file is part of the Qt Designer of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists for the convenience
// of Qt Designer. This header
// file may change from version to version without notice, or even be removed.
//
// We mean it.
//
#ifndef LAYOUT_H
#define LAYOUT_H
#include "shared_global_p.h"
#include "layoutinfo_p.h"
#include <QtCore/QPointer>
#include <QtCore/QObject>
#include <QtCore/QMap>
#include <QtCore/QHash>
#include <QtGui/QLayout>
#include <QtGui/QGridLayout>
#include <QtGui/QWidget>
QT_BEGIN_NAMESPACE
class QDesignerFormWindowInterface;
namespace qdesigner_internal {
class QDESIGNER_SHARED_EXPORT Layout : public QObject
{
Q_OBJECT
Q_DISABLE_COPY(Layout)
protected:
Layout(const QWidgetList &wl, QWidget *p, QDesignerFormWindowInterface *fw, QWidget *lb, LayoutInfo::Type layoutType);
public:
static Layout* createLayout(const QWidgetList &widgets, QWidget *parentWidget,
QDesignerFormWindowInterface *fw,
QWidget *layoutBase, LayoutInfo::Type layoutType);
virtual ~Layout();
virtual void sort() = 0;
virtual void doLayout() = 0;
virtual void setup();
virtual void undoLayout();
virtual void breakLayout();
const QWidgetList &widgets() const { return m_widgets; }
QWidget *parentWidget() const { return m_parentWidget; }
QWidget *layoutBaseWidget() const { return m_layoutBase; }
/* Determines whether instances of QLayoutWidget are unmanaged/hidden
* after breaking a layout. Default is true. Can be turned off when
* morphing */
bool reparentLayoutWidget() const { return m_reparentLayoutWidget; }
void setReparentLayoutWidget(bool v) { m_reparentLayoutWidget = v; }
protected:
virtual void finishLayout(bool needMove, QLayout *layout = 0);
virtual bool prepareLayout(bool &needMove, bool &needReparent);
void setWidgets(const QWidgetList &widgets) { m_widgets = widgets; }
QLayout *createLayout(int type);
void reparentToLayoutBase(QWidget *w);
private slots:
void widgetDestroyed();
private:
QWidgetList m_widgets;
QWidget *m_parentWidget;
typedef QHash<QWidget *, QRect> WidgetGeometryHash;
WidgetGeometryHash m_geometries;
QWidget *m_layoutBase;
QDesignerFormWindowInterface *m_formWindow;
const LayoutInfo::Type m_layoutType;
QPoint m_startPoint;
QRect m_oldGeometry;
bool m_reparentLayoutWidget;
const bool m_isBreak;
};
namespace Utils
{
inline int indexOfWidget(QLayout *layout, QWidget *widget)
{
int index = 0;
while (QLayoutItem *item = layout->itemAt(index)) {
if (item->widget() == widget)
return index;
++index;
}
return -1;
}
} // namespace Utils
} // namespace qdesigner_internal
QT_END_NAMESPACE
#endif // LAYOUT_H
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