KoCanvasBase.h

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/* This file is part of the KDE project
 
   SPDX-FileCopyrightText: 2006, 2010 Boudewijn Rempt <boud@valdyas.org>
   SPDX-FileCopyrightText: 2006, 2010 Thomas Zander <zander@kde.org>
   SPDX-FileCopyrightText: 2006 Thorsten Zachmann <zachmann@kde.org>
 
   SPDX-License-Identifier: LGPL-2.0-or-later
*/
 
#ifndef KOCANVASBASE_H
#define KOCANVASBASE_H
 
#include <QPoint>
 
#include "kritaflake_export.h"
 
class KUndo2Command;
 
class KoUnit;
class KoCanvasResourceProvider;
class KoShapeManager;
class KoToolProxy;
class KoViewConverter;
class KoShapeController;
class KoShapeControllerBase;
class KoCanvasController;
class KoShape;
class KoSnapGuide;
class KoSelectedShapesProxy;
 
class QWidget;
class QCursor;
class QPointF;
class QRectF;
class QSizeF;
 
#include <QObject>
 
class KRITAFLAKE_EXPORT KoCanvasBase : public QObject
{
    Q_OBJECT
public:
 
    explicit KoCanvasBase(KoShapeControllerBase *shapeController, KoCanvasResourceProvider *sharedResourceManager = 0);
    ~KoCanvasBase() override;
 
public:
 
    virtual bool canvasIsOpenGL() const { return false; }
 
    virtual void gridSize(QPointF *offset, QSizeF *spacing) const = 0;
 
    virtual bool snapToGrid() const = 0;
 
 
    virtual void setCursor(const QCursor &cursor) = 0;
 
    virtual void addCommand(KUndo2Command *command) = 0;
 
    virtual KoShapeManager *shapeManager() const = 0;
 
    virtual KoSelectedShapesProxy *selectedShapesProxy() const = 0;
 
    virtual KoShape *currentShapeManagerOwnerShape() const {
        return nullptr;
    }
 
    virtual void setCurrentShapeManagerOwnerShape(KoShape *source) {
        Q_UNUSED(source)
    }
    virtual void updateCanvas(const QRectF &rc) = 0;
 
    virtual KoToolProxy *toolProxy() const = 0;
 
    virtual const KoViewConverter *viewConverter() const = 0;
    virtual KoViewConverter *viewConverter() = 0;
 
    virtual QPointF viewToDocument(const QPointF &viewPoint) const;
 
    virtual QWidget *canvasWidget() = 0;
 
    virtual const QWidget *canvasWidget() const = 0;
 
    virtual KoUnit unit() const = 0;
 
    virtual void clipToDocument(const KoShape *shape, QPointF &move) const;
 
    virtual QPoint documentOrigin() const {
        return QPoint(0, 0);
    }
 
    virtual void disconnectCanvasObserver(QObject *object);
 
    KoCanvasResourceProvider *resourceManager() const;
 
    KoShapeController *shapeController() const;
 
    KoCanvasController *canvasController() const;
 
    KoSnapGuide *snapGuide() const;
 
    void setCanvasController(KoCanvasController *controller);
 
private:
    // we need a KoShapeControllerBase so that it can work
    KoCanvasBase();
 
    class Private;
    Private * const d;
};
 
#endif // KOCANVASBASE_H