KoPathTool.h

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/* This file is part of the KDE project
 * SPDX-FileCopyrightText: 2006-2012 Jan Hambrecht <jaham@gmx.net>
 * SPDX-FileCopyrightText: 2006, 2007 Thorsten Zachmann <zachmann@kde.org>
 * SPDX-FileCopyrightText: 2007 Thomas Zander <zander@kde.org>
 * SPDX-FileCopyrightText: 2007 Boudewijn Rempt <boud@valdyas.org>
 *
 * SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
#ifndef KOPATHTOOL_H
#define KOPATHTOOL_H
 
#include "KoPathShape.h"
#include "KoToolBase.h"
#include "KoPathToolSelection.h"
#include "kis_signal_auto_connection.h"
#include <QList>
#include <QCursor>
#include <KoShapeFillResourceConnector.h>
#include "KoPathPointTypeCommand.h"
 
class QActionGroup;
class QButtonGroup;
class KoCanvasBase;
class KoInteractionStrategy;
class KoPathToolHandle;
class KoParameterShape;
class KUndo2Command;
 
class QMenu;
 
 
class KRITAFLAKE_EXPORT KoPathTool : public KoToolBase
{
    Q_OBJECT
public:
    explicit KoPathTool(KoCanvasBase *canvas);
    ~KoPathTool() override;
 
    void paint(QPainter &painter, const KoViewConverter &converter) override;
    void repaintDecorations() override;
    QRectF decorationsRect() const override;
    void mousePressEvent(KoPointerEvent *event) override;
    void mouseMoveEvent(KoPointerEvent *event) override;
    void mouseReleaseEvent(KoPointerEvent *event) override;
    void keyPressEvent(QKeyEvent *event) override;
    void keyReleaseEvent(QKeyEvent *event) override;
    void mouseDoubleClickEvent(KoPointerEvent *event) override;
    void activate(const QSet<KoShape*> &shapes) override;
    void deactivate() override;
    void deleteSelection() override;
    KoToolSelection* selection() override;
    void requestUndoDuringStroke() override;
    void requestStrokeCancellation() override;
    void requestStrokeEnd() override;
    void explicitUserStrokeEndRequest() override;
 
    bool selectAll() override;
    void deselect() override;
 
    QMenu* popupActionsMenu() override;
 
    // for KoPathToolSelection
    void notifyPathPointsChanged(KoPathShape *shape);
 
public Q_SLOTS:
    void canvasResourceChanged(int key, const QVariant & res) override;
 
Q_SIGNALS:
    void typeChanged(int types);
    void singleShapeChanged(KoPathShape* path);
 
protected:
    QList<QPointer<QWidget> >  createOptionWidgets() override;
 
private:
    struct PathSegment;
 
    void updateOptionsWidget();
    PathSegment* segmentAtPoint(const QPointF &point);
 
private Q_SLOTS:
    void pointTypeChangedCorner();
    void pointTypeChangedSmooth();
    void pointTypeChangedSymmetric();
    void pointTypeChanged(KoPathPointTypeCommand::PointType type);
    void insertPoints();
    void removePoints();
    void segmentToLine();
    void segmentToCurve();
    void convertToPath();
    void joinPoints();
    void mergePoints();
    void breakAtPoint();
    void breakAtSegment();
    void breakAtSelection();
    void pointSelectionChanged();
    void updateActions();
    void pointToLine();
    void pointToCurve();
    void slotSelectionChanged();
 
private:
    void clearActivePointSelectionReferences();
    void initializeWithShapes(const QList<KoShape*> shapes);
    KUndo2Command* createPointToCurveCommand(const QList<KoPathPointData> &points);
    void mergePointsImpl(bool doJoin);
 
protected:
    KoPathToolSelection m_pointSelection; 
    QCursor m_selectCursor;
 
private:
    QScopedPointer<KoPathToolHandle> m_activeHandle;       
    QPointF m_lastPoint; 
    QScopedPointer<PathSegment> m_activeSegment;
 
    // make a friend so that it can test private member/methods
    friend class TestPathTool;
 
    QScopedPointer<KoInteractionStrategy> m_currentStrategy; 
 
    QAction *m_actionPathPointCorner;
    QAction *m_actionPathPointSmooth;
    QAction *m_actionPathPointSymmetric;
    QAction *m_actionCurvePoint;
    QAction *m_actionLinePoint;
    QAction *m_actionLineSegment;
    QAction *m_actionCurveSegment;
    QAction *m_actionAddPoint;
    QAction *m_actionRemovePoint;
    QAction *m_actionBreakPoint;
    QAction *m_actionBreakSegment;
    QAction *m_actionBreakSelection;
    QAction *m_actionJoinSegment;
    QAction *m_actionMergePoints;
    QAction *m_actionConvertToPath;
    QCursor m_moveCursor;
    QScopedPointer<QMenu> m_contextMenu;
    KisSignalAutoConnectionsStore m_canvasConnections;
    KoShapeFillResourceConnector m_shapeFillResourceConnector;
 
    Q_DECLARE_PRIVATE(KoToolBase)
};
 
#endif