kis_zoom_manager.h

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/*
 *  SPDX-FileCopyrightText: 2006 Boudewijn Rempt <boud@valdyas.org>
 *
 *  SPDX-License-Identifier: GPL-2.0-or-later
 */
#ifndef KIS_ZOOM_MANAGER
#define KIS_ZOOM_MANAGER
 
#include <QObject>
#include <QPointer>
 
#include <klocalizedstring.h>
 
#include <KoZoomMode.h>
#include <KoZoomAction.h>
#include <KoZoomHandler.h>
#include "kis_signal_auto_connection.h"
#include "kis_signal_compressor.h"
 
#include "KisView.h"
 
class KoZoomHandler;
class KoZoomAction;
class KoRuler;
class KoUnit;
class KoCanvasController;
class QPoint;
 
#include "kritaui_export.h"
 
class KRITAUI_EXPORT KisZoomManager : public QObject
{
 
    Q_OBJECT
 
public:
 
    KisZoomManager(QPointer<KisView> view, KoZoomHandler*, KoCanvasController *);
    ~KisZoomManager() override;
 
    void setup(KisKActionCollection * actionCollection);
 
    void updateImageBoundsSnapping();
    void syncOnImageResolutionChange();
 
    KoZoomAction *zoomAction() const;
    QWidget *zoomActionWidget() const;
 
    KoRuler *horizontalRuler() const;
    KoRuler *verticalRuler() const;
 
public Q_SLOTS:
 
    void setShowRulers(bool show);
    void setRulersTrackMouse(bool value);
    void mousePositionChanged(const QPoint &viewPos);
 
    void zoomTo100();
    void slotZoomIn();
    void slotZoomOut();
    void slotZoomToFit();
    void slotZoomToFitWidth();
    void slotZoomToFitHeight();
    void slotToggleZoomToFit();
    void applyRulersUnit(const KoUnit &baseUnit);
    void setRulersPixelMultiple2(bool enabled);
 
 
private Q_SLOTS:
    void slotUpdateGuiAfterZoomChange();
    void slotUpdateGuiAfterDocumentRectChanged();
    void slotConfigChanged();
 
private:
    void updateMouseTrackingConnections();
    void updateCurrentZoomResource();
 
private:
 
    QPointer<KisView> m_view;
    KoZoomHandler * m_zoomHandler {nullptr};
    KoCanvasController *m_canvasController {nullptr};
    KoRuler * m_horizontalRuler {nullptr};
    KoRuler * m_verticalRuler {nullptr};
    KoZoomAction * m_zoomAction {nullptr};
    QPointer<QWidget> m_zoomActionWidget;
    QRect m_cachedRulersRect;
    KisSignalAutoConnectionsStore m_mouseTrackingConnections;
 
    KisSignalCompressor m_zoomChangedCompressor;
    KisSignalCompressor m_documentRectChangedCompressor;
    qreal m_previousZoomLevel {1.0};
    KoZoomMode::Mode m_previousZoomMode;
    QPointF m_previousZoomPoint;
};
 
 
#endif