resizehandle.h

/* 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 <tqdict.h>
#include <tqguardedptr.h>
#include <tqwidget.h>

 
namespace KFormDesigner
{
 
class Form;
class ResizeHandleSet;

class KFORMEDITOR_EXPORT ResizeHandle : public TQWidget
{
    TQ_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(TQMouseEvent *ev);
        virtual void mouseMoveEvent(TQMouseEvent *ev);
        virtual void mouseReleaseEvent(TQMouseEvent *ev);
        virtual void paintEvent( TQPaintEvent *ev );
 
    protected slots:
        bool eventFilter(TQObject *obj, TQEvent *ev);
        void updatePos();
 
    private:
        ResizeHandleSet *m_set;
        HandlePos m_pos;
        //TQWidget *m_buddy;
        bool m_dragging;
        //bool m_editing;
        int m_x;
        int m_y;
};

class KFORMEDITOR_EXPORT ResizeHandleSet: public TQObject
{
    TQ_OBJECT
  
 
    public:
        typedef TQDict<ResizeHandleSet> Dict;
 
        ResizeHandleSet(TQWidget *modify, Form *form, bool editing = false);
        ~ResizeHandleSet();
 
        void setWidget(TQWidget *modify, bool editing = false);
        TQWidget *widget() const { return m_widget; }
        void raise();
        void setEditingMode(bool editing);
 
    private:
        TQGuardedPtr<ResizeHandle> m_handles[8];
        TQGuardedPtr<TQWidget> m_widget;
        TQGuardedPtr<Form>   m_form;
        bool  m_editing;
 
    friend class ResizeHandle;
};
 
}
 
#endif