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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