26 lines
633 B
C
26 lines
633 B
C
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#ifndef BRUSHPAD_H
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#define BRUSHPAD_H
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#include <QGroupBox>
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#include <QPixmap>
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#include <QImage>
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class BrushPad : public QGroupBox
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{
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Q_OBJECT
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public:
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explicit BrushPad(QWidget *parent = nullptr);
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void setBrushImage(const QImage &img); // 实时换笔刷
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void moveBrush(const QPoint &pos); // 实时移动笔刷
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protected:
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void paintEvent(QPaintEvent *) override;
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void resizeEvent(QResizeEvent *) override;
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private:
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QPixmap m_canvas; // 双缓冲画布
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QImage m_brush; // 当前笔刷
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QPoint m_brushPos; // 仅记录最后一次笔刷位置（调试用）
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};
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#endif // BRUSHPAD_H
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