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uncor3
123 lines
3.6 KiB
C++
123 lines
3.6 KiB
C++
// C++ port of https://github.com/GvozdevLeonid/BackDrop-in-PyQt-PySide
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#ifndef BACKDROP_H
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#define BACKDROP_H
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#include <QBrush>
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#include <QColor>
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#include <QEvent>
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#include <QGraphicsEffect>
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#include <QLinearGradient>
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#include <QPixmap>
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#include <QPointF>
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#include <QPropertyAnimation>
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#include <QSize>
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#include <QVBoxLayout>
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#include <QWidget>
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#include <vector>
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// ── Background layer description ────────────────────────────────────
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struct BackgroundLayer {
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QBrush backgroundColor{QColor(255, 255, 255, 0)};
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QColor border{255, 255, 255, 0};
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int borderWidth = 1;
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qreal opacity = 0.0;
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};
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// ── BackDrop – a QGraphicsEffect that blurs what is behind the widget ──
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class BackDrop : public QGraphicsEffect
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{
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Q_OBJECT
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Q_PROPERTY(QPointF animationPosition READ animationPosition WRITE
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setAnimationPosition)
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public:
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explicit BackDrop(int blur = 0, int radius = 0,
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const std::vector<BackgroundLayer> &backgrounds = {},
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QObject *parent = nullptr);
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QPointF animationPosition() const;
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void setAnimationPosition(const QPointF &pos);
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void shineAnimation(int duration = 300, bool forward = true,
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int angle = 135, int width = 40,
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QColor color = QColor(255, 255, 255, 125));
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static QPixmap blurPixmap(const QPixmap &src, int blurRadius);
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static void cutPixmap(QPixmap &pixmap, const QPixmap &mask, int w, int h);
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static QPixmap getColoredPixmap(const QBrush &brushColor,
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const QColor &penColor, int penWidth, int w,
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int h, int radius);
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QPixmap getBlurBackground(const QPixmap &source);
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void createAnimationPixmap(int angle, int lineWidth, const QColor &color);
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protected:
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void draw(QPainter *painter) override;
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private:
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int m_blur;
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int m_radius;
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std::vector<BackgroundLayer> m_backgrounds;
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QSize m_size{0, 0};
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QPixmap m_animationPixmap;
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bool m_forwardAnimation = false;
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QPointF m_animationPosition{0, 0};
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QPropertyAnimation m_animation;
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};
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// ── BackDropWrapper – wraps any widget and adds backdrop + hover anims ──
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class BackDropWrapper : public QWidget
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{
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Q_OBJECT
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public:
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explicit BackDropWrapper(
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QWidget *widget, int blur = 0, int radius = 0,
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const std::vector<BackgroundLayer> &backgrounds = {},
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QWidget *parent = nullptr);
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void enableShineAnimation(int duration = 300, bool forward = true,
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int angle = 135, int width = 40,
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QColor color = QColor(255, 255, 255, 125));
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void enableMoveAnimation(int duration = 300, QPointF offset = QPointF(0, 0),
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bool forward = true);
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protected:
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bool event(QEvent *event) override;
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private:
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void moveAnimation(int duration, const QPointF &offset, bool forward);
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QWidget *m_widget = nullptr;
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BackDrop *m_backdrop = nullptr;
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QPropertyAnimation m_moveAnim;
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QPointF m_normalPos;
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bool m_moveForward = false;
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bool m_hasNormalPos = false;
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// Stored animation parameters
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struct ShineInfo {
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int duration = 300;
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bool forward = true;
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int angle = 135;
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int width = 40;
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QColor color{255, 255, 255, 125};
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};
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struct MoveInfo {
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int duration = 300;
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QPointF offset{0, 0};
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bool forward = true;
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};
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bool m_shineEnabled = false;
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ShineInfo m_shineInfo;
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bool m_moveEnabled = false;
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MoveInfo m_moveInfo;
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};
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#endif // BACKDROP_H
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