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/* This file is part of the KDE libraries
Copyright (C) 2002 Joseph Wenninger <jowenn@kde.org>
Copyright (C) 2004 Cedric Pasteur <cedric.pasteur@free.fr>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License version 2 as published by the Free Software Foundation.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef KFE_RESIZEHANDLER_H
#define KFE_RESIZEHANDLER_H
#include <qdict.h>
#include <qguardedptr.h>
#include <qwidget.h>
/**
*@author Joseph Wenninger
*/
namespace KFormDesigner
{
class Form;
class ResizeHandleSet;
/**
* a single widget which represents a dot for resizing a widget
* @author Joseph Wenninger
*/
class KFORMEDITOR_EXPORT ResizeHandle : public QWidget
{
Q_OBJECT
public:
enum HandlePos { TopLeft = 0, TopCenter = 2, TopRight = 4, LeftCenter = 8, RightCenter = 16,
BottomLeft = 32, BottomCenter = 64, BottomRight = 128 };
ResizeHandle(ResizeHandleSet *set, HandlePos pos, bool editing=false);
virtual ~ResizeHandle();
void setEditingMode(bool editing);
protected:
virtual void mousePressEvent(QMouseEvent *ev);
virtual void mouseMoveEvent(QMouseEvent *ev);
virtual void mouseReleaseEvent(QMouseEvent *ev);
virtual void paintEvent( QPaintEvent *ev );
protected slots:
bool eventFilter(QObject *obj, QEvent *ev);
void updatePos();
private:
ResizeHandleSet *m_set;
HandlePos m_pos;
//QWidget *m_buddy;
bool m_dragging;
//bool m_editing;
int m_x;
int m_y;
};
/**
* a set of resize handles (for resizing widgets)
* @author Joseph Wenninger
*/
class KFORMEDITOR_EXPORT ResizeHandleSet: public QObject
{
Q_OBJECT
public:
typedef QDict<ResizeHandleSet> Dict;
ResizeHandleSet(QWidget *modify, Form *form, bool editing = false);
~ResizeHandleSet();
void setWidget(QWidget *modify, bool editing = false);
QWidget *widget() const { return m_widget; }
void raise();
void setEditingMode(bool editing);
private:
QGuardedPtr<ResizeHandle> m_handles[8];
QGuardedPtr<QWidget> m_widget;
QGuardedPtr<Form> m_form;
bool m_editing;
friend class ResizeHandle;
};
}
#endif
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