F:/KPlato/koffice/libs/flake/KoTool.h

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/* This file is part of the KDE project
 * Copyright (C) 2006 Thomas Zander <zander@kde.org>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * 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 KOTOOL_H
#define KOTOOL_H

#include <QString>
#include <QObject>
#include <QCursor>

#include <koffice_export.h>

#include <KoCanvasResourceProvider.h>

class KoCanvasBase;
class KoPointerEvent;
class KoViewConverter;

class KActionCollection;
class KRadioAction;

class QKeyEvent;
class QWidget;
class QPainter;

class FLAKE_EXPORT KoTool : public QObject
{
    Q_OBJECT
public:

    KoTool(KoCanvasBase *canvas );
    virtual ~KoTool() {}

public:

    virtual void repaintDecorations() {};

public slots:
    virtual void activate(bool temporary = false);

    virtual void deactivate();

    virtual void resourceChanged( KoCanvasResource::EnumCanvasResource key, const QVariant & res );

public:

    virtual bool wantsAutoScroll();

    virtual void paint( QPainter &painter, KoViewConverter &converter ) = 0;

    QWidget * optionWidget();

    virtual QString quickHelp() const { return ""; }

public: // Events

    virtual void mousePressEvent( KoPointerEvent *event ) = 0;

    virtual void mouseDoubleClickEvent( KoPointerEvent *event );

    virtual void mouseMoveEvent( KoPointerEvent *event ) = 0;

    virtual void mouseReleaseEvent( KoPointerEvent *event ) = 0;

    virtual void keyPressEvent(QKeyEvent *event);

    virtual void keyReleaseEvent(QKeyEvent *event);

    virtual void wheelEvent ( KoPointerEvent * event );

signals:

    void sigActivateTool(const QString &id );

    void sigActivateTemporary(const QString & id);

    void sigDone();

    void sigCursorChanged(QCursor cursor);



protected:
    void useCursor(QCursor cursor, bool force=false);

    virtual void createOptionWidget()
        {
            m_optionWidget = 0;
        }

protected:

    KoCanvasBase *m_canvas; 
    QWidget * m_optionWidget; 

private:
    KoTool();
    KoTool(const KoTool&);
    KoTool& operator=(const KoTool&);

    QCursor m_previousCursor;
};

#endif /* KOTOOL_H */

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