kis_prescaled_projection.h

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/*
 * SPDX-FileCopyrightText: 2006 Boudewijn Rempt <boud@valdyas.org>
 *
 *  SPDX-License-Identifier: GPL-2.0-or-later
 */
#ifndef KIS_PRESCALED_PROJECTION_H
#define KIS_PRESCALED_PROJECTION_H
 
#include <QObject>
 
#include <kritaui_export.h>
#include <kis_shared.h>
 
#include "KoColorConversionTransformation.h"
class QImage;
class QRect;
class QSize;
class QPainter;
 
class KoColorProfile;
class KisCoordinatesConverter;
class KisDisplayFilter;
class KisDisplayConfig;
class KisCanvasState;
 
#include <kis_types.h>
#include "kis_ui_types.h"
 
 
class KRITAUI_EXPORT KisPrescaledProjection : public QObject, public KisShared
{
    Q_OBJECT
public:
 
    KisPrescaledProjection();
    ~KisPrescaledProjection() override;
 
    void setImage(KisImageWSP image);
 
    QImage prescaledQImage() const;
 
    void setCoordinatesConverter(KisCoordinatesConverter *coordinatesConverter);
 
public Q_SLOTS:
 
    KisUpdateInfoSP updateCache(const QRect &dirtyImageRect);
 
    void recalculateCache(KisUpdateInfoSP info);
 
    void updateSettings();
 
    void notifyCanvasStateChanged(const KisCanvasState &state);
 
    void slotImageSizeChanged(qint32 w, qint32 h);
 
    void notifyCanvasSizeChanged(const QSize &widgetSize);
 
    void setDisplayConfig(const KisDisplayConfig &config);
 
    void setChannelFlags(const QBitArray &channelFlags);
 
    void setDisplayFilter(QSharedPointer<KisDisplayFilter> displayFilter);
 
    void preScale();
 
private:
 
    friend class KisPrescaledProjectionTest;
 
    KisPrescaledProjection(const KisPrescaledProjection &);
    KisPrescaledProjection operator=(const KisPrescaledProjection &);
 
    void updateViewportSize();
 
    void viewportMoved(const QPointF &offset);
 
    KisPPUpdateInfoSP getInitialUpdateInformation(const QRect &dirtyImageRect);
 
    void fillInUpdateInformation(const QRect &viewportRect,
                                 KisPPUpdateInfoSP info);
 
    void updateScaledImage(KisPPUpdateInfoSP info);
 
    void drawUsingBackend(QPainter &gc, KisPPUpdateInfoSP info);
 
    struct Private;
    Private * const m_d;
};
 
#endif