kis_tool_gradient.h

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/*
 *  kis_tool_line.h - part of Krayon
 *
 *  SPDX-FileCopyrightText: 2000 John Califf <jcaliff@comuzone.net>
 *  SPDX-FileCopyrightText: 2002 Patrick Julien <freak@codepimps.org>
 *  SPDX-FileCopyrightText: 2004 Boudewijn Rempt <boud@valdyas.org>
 *  SPDX-FileCopyrightText: 2004 Adrian Page <adrian@pagenet.plus.com>
 *  SPDX-FileCopyrightText: 2021 L. E. Segovia <amy@amyspark.me>
 *
 *  SPDX-License-Identifier: GPL-2.0-or-later
 */
 
#ifndef KIS_TOOL_GRADIENT_H_
#define KIS_TOOL_GRADIENT_H_
 
#include <QKeySequence>
 
#include <KisToolPaintFactoryBase.h>
 
#include <kis_tool_paint.h>
#include <kis_global.h>
#include <kis_types.h>
#include <kis_gradient_painter.h>
#include <kis_int_parse_spin_box.h>
#include <flake/kis_node_shape.h>
#include <kis_icon.h>
#include <kconfig.h>
#include <kconfiggroup.h>
 
 
class QLabel;
class QPoint;
class QWidget;
class QCheckBox;
class KComboBox;
class KisDoubleSliderSpinBox;
 
class KisToolGradient : public KisToolPaint
{
 
    Q_OBJECT
 
public:
    KisToolGradient(KoCanvasBase * canvas);
    ~KisToolGradient() override;
 
    void beginPrimaryAction(KoPointerEvent *event) override;
    void continuePrimaryAction(KoPointerEvent *event) override;
    void endPrimaryAction(KoPointerEvent *event) override;
 
    void paint(QPainter &painter, const KoViewConverter &converter) override;
 
    QWidget* createOptionWidget() override;
 
public Q_SLOTS:
    void activate(const QSet<KoShape*> &shapes) override;
private Q_SLOTS:
    void slotSetShape(int);
    void slotSetRepeat(int);
    void slotSetReverse(bool);
    void slotSetDither(int);
    void slotSetDitherSteps(int);
    void slotSetAntiAliasThreshold(qreal);
protected Q_SLOTS:
    void resetCursorStyle() override;
 
private Q_SLOTS:
 
    void areaDone(const QRect & rc) {
        currentNode()->setDirty(rc); // Starts computing the projection for the area we've done.
 
    }
 
private:
 
    void paintLine(QPainter& gc);
    void updateGuideline();
 
    QPointF straightLine(QPointF point);
 
    QPointF m_startPos;
    QPointF m_endPos;
 
    KisGradientPainter::enumGradientShape m_shape;
    KisGradientPainter::enumGradientRepeat m_repeat;
 
    KisGradientPainter::enumDither m_dither {KisGradientPainter::DitherNone};
    int m_ditherSteps {KisGradientPainter::defaultDitherSteps};
    bool m_reverse {false};
    double m_antiAliasThreshold {0.0};
 
    QLabel *m_lbShape {nullptr};
    QLabel *m_lbRepeat {nullptr};
    QLabel *m_lbDither {nullptr};
    KComboBox *m_cmbDither {nullptr};
    QLabel *m_lbDitherSteps {nullptr};
    KisIntParseSpinBox *m_sbDitherSteps {nullptr};
    QCheckBox *m_ckReverse {nullptr};
    KComboBox *m_cmbShape {nullptr};
    KComboBox *m_cmbRepeat {nullptr};
    QLabel *m_lbAntiAliasThreshold {nullptr};
    KisDoubleSliderSpinBox *m_slAntiAliasThreshold {nullptr};
    KConfigGroup m_configGroup;
};
 
class KisToolGradientFactory : public KisToolPaintFactoryBase
{
 
public:
    KisToolGradientFactory()
            : KisToolPaintFactoryBase("KritaFill/KisToolGradient") {
        setToolTip(i18n("Gradient Tool"));
        setSection(ToolBoxSection::Fill);
        setIconName(koIconNameCStr("krita_tool_gradient"));
        setShortcut(QKeySequence(Qt::Key_G));
        setPriority(1);
        setActivationShapeId(KRITA_TOOL_ACTIVATION_ID);
    }
 
    ~KisToolGradientFactory() override {}
 
    KoToolBase * createTool(KoCanvasBase *canvas) override {
        return  new KisToolGradient(canvas);
    }
 
};
 
#endif //KIS_TOOL_GRADIENT_H_