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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
//
// 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.h>
#include <QtCore/qobject.h>
#include <QtCore/qmap.h>
#include <QtCore/qhash.h>
#include <QtWidgets/qlayout.h>
#include <QtWidgets/qgridlayout.h>
#include <QtWidgets/qwidget.h>
QT_BEGIN_NAMESPACE
class QDesignerFormWindowInterface;
namespace qdesigner_internal {
class QDESIGNER_SHARED_EXPORT Layout : public QObject
{
Q_OBJECT
Q_DISABLE_COPY_MOVE(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);
~Layout() override;
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 = nullptr);
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;
QHash<QWidget *, QRect> 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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