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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.
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef WIDGETSELECTION_H
#define WIDGETSELECTION_H
#include "formeditor_global.h"
#include <invisible_widget_p.h>
#include <QtCore/QHash>
#include <QtCore/QPointer>
QT_BEGIN_NAMESPACE
class QDesignerFormEditorInterface;
class QMouseEvent;
class QPaintEvent;
namespace qdesigner_internal {
class FormWindow;
class WidgetSelection;
class QT_FORMEDITOR_EXPORT WidgetHandle: public InvisibleWidget
{
Q_OBJECT
public:
enum Type
{
LeftTop,
Top,
RightTop,
Right,
RightBottom,
Bottom,
LeftBottom,
Left,
TypeCount
};
WidgetHandle(FormWindow *parent, Type t, WidgetSelection *s);
void setWidget(QWidget *w);
void setActive(bool a);
void updateCursor();
void setEnabled(bool) {}
QDesignerFormEditorInterface *core() const;
protected:
void paintEvent(QPaintEvent *e);
void mousePressEvent(QMouseEvent *e);
void mouseMoveEvent(QMouseEvent *e);
void mouseReleaseEvent(QMouseEvent *e);
private:
void changeGridLayoutItemSpan();
void changeFormLayoutItemSpan();
void trySetGeometry(QWidget *w, int x, int y, int width, int height);
void tryResize(QWidget *w, int width, int height);
private:
QWidget *m_widget;
const Type m_type;
QPoint m_origPressPos;
FormWindow *m_formWindow;
WidgetSelection *m_sel;
QRect m_geom, m_origGeom;
bool m_active;
};
class QT_FORMEDITOR_EXPORT WidgetSelection: public QObject
{
Q_OBJECT
public:
WidgetSelection(FormWindow *parent);
void setWidget(QWidget *w);
bool isUsed() const;
void updateActive();
void updateGeometry();
void hide();
void show();
void update();
QWidget *widget() const;
QDesignerFormEditorInterface *core() const;
virtual bool eventFilter(QObject *object, QEvent *event);
enum WidgetState { UnlaidOut, LaidOut, ManagedGridLayout, ManagedFormLayout };
static WidgetState widgetState(const QDesignerFormEditorInterface *core, QWidget *w);
private:
WidgetHandle *m_handles[WidgetHandle::TypeCount];
QPointer<QWidget> m_widget;
FormWindow *m_formWindow;
};
} // namespace qdesigner_internal
QT_END_NAMESPACE
#endif // WIDGETSELECTION_H
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