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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Designer of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef WIDGETSELECTION_H
#define WIDGETSELECTION_H
#include "formeditor_global.h"
#include <invisible_widget_p.h>
#include <QtCore/qhash.h>
#include <QtCore/qpointer.h>
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) override;
void mousePressEvent(QMouseEvent *e) override;
void mouseMoveEvent(QMouseEvent *e) override;
void mouseReleaseEvent(QMouseEvent *e) override;
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;
bool eventFilter(QObject *object, QEvent *event) override;
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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