galleryitemrenderer.h

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// Copyright (C) 2025 The Qt Company Ltd.

// Copyright (C) 2015 QUIt Coding <info@quitcoding.com>

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause

#ifndef GALLERYITEMRENDERER_H

#define GALLERYITEMRENDERER_H

#include <QtCanvasPainter/qcanvaspainteritemrenderer.h>

#include <QtCanvasPainter/qcanvaspainter.h>

#include <QtCanvasPainter/qcanvasradialgradient.h>

#include <QtCanvasPainter/qcanvascustombrush.h>

#include <QtCanvasPainter/qcanvasimage.h>

#include <QtCanvasPainter/qcanvaspath.h>

#include <QQuickItem>

//![0]

class GalleryItemRenderer : public QCanvasPainterItemRenderer

public:

    explicit GalleryItemRenderer();

    ~GalleryItemRenderer();

    void initializeResources(QCanvasPainter *painter) override;

    void synchronizeData(QCanvasPainterItem *item) override;

    void paint(QCanvasPainter *painter) override;

//![0]

private:

    // View - Rectangles

    void drawRectsWithLinearGradient();

    void drawRectsWithRadialGradient();

    void drawRectsWithBoxGradient();

    void drawRectsWithConicalGradients();

    void drawRectsWithImagePattern();

    void drawRectsWithBrushStroke();

    // View - Paths

    void drawPaths();

    // View - Painter Paths

    void drawPainterPaths();

    void drawPainterPaths2();

    // View - States and transforms

    void drawTransforms();

    // View - Antialiasing

    void drawAntialiasing();

    // View - Composite

    void drawCompositeItem1(float x, float y, float w, float h, QCanvasPainter::CompositeOperation mode);

    void drawCompositeItem2(float x, float y, float w, float h, QCanvasPainter::CompositeOperation mode);

    void drawCompositeItem3(float x, float y, float w, float h, QCanvasPainter::CompositeOperation mode);

    void drawCompositeModes();

    // View - Grid patterns

    void drawGridPatterns();

    // View - Shadows

    void drawRectangularShadows();

    // View - Custom Brushes

    void drawCustomBrushes();

    // View - Color Effects

    void drawButton(float x, float y, float w, float h, const QString &label);

    void drawColorEffects();

    // View - Texts

    void drawTextsFonts();

    void drawTextsBrushes();

    void drawTextsAlignments();

    void drawTextsWrapping();

    // View - Images

    void drawImages();

    void drawRect(float x, float y, float w, float h);

    void loadTigerPath();

    //QCanvasPainter *m_painter;

    float m_animationTime = 0.0f;

    float m_animationSine = 0.0f;

    float m_animState = 0.0f;

    float m_viewAlpha = 1.0f;

    float m_viewSaturation = 1.0f;

    int m_viewIndex = 0;

    qreal m_previousWidth = 0;

    qreal m_previousHeight = 0;

    bool m_sizeChanged = false;

    float m_topMargin = 0;

    QCanvasRadialGradient m_radGrad;

    QCanvasImage m_testImage;

    QCanvasImage m_patternImage;

    QCanvasImage m_patternImage2;

    QCanvasImage m_patternImage3;

    QCanvasImage m_gradientImage1;

    QCanvasImage m_gradientImage2;

    QCanvasImage m_gradientImage3;

    QCanvasImage image3Gray;

    QCanvasImage image3Plain;

    QCanvasImage image3Nearest;

    QCanvasImage image3Mips;

    QCanvasImage image3NearestMips;

    QCanvasCustomBrush m_customBrush;

    QCanvasCustomBrush m_customBrush2;

    QCanvasCustomBrush m_customBrush3;

    QCanvasCustomBrush m_customBrush4;

    QCanvasPath m_path1;

    QCanvasPath m_path2;

    QCanvasPath m_path3;

    QCanvasPath m_path4;

    QCanvasPath m_pathGraphLine;

    QCanvasPath m_pathGraphArea;

    struct SvgData {

        QColor fill = QColorConstants::Transparent;

        QColor stroke = QColorConstants::Transparent;

        float lineWidth = 0;

        QString path;

        QCanvasPath canvasPath;

};

    QList<SvgData> m_tigerData;

};

#endif // GALLERYITEMRENDERER_H