添加OpenCv

PublicFunctions/BrushPad.h

@@ -0,0 +1,25 @@
+#ifndef BRUSHPAD_H
+#define BRUSHPAD_H
+
+#include <QGroupBox>
+#include <QPixmap>
+#include <QImage>
+
+class BrushPad : public QGroupBox
+{
+    Q_OBJECT
+public:
+    explicit BrushPad(QWidget *parent = nullptr);
+
+    void setBrushImage(const QImage &img);   // 实时换笔刷
+    void moveBrush(const QPoint &pos);       // 实时移动笔刷
+protected:
+    void paintEvent(QPaintEvent *) override;
+    void resizeEvent(QResizeEvent *) override;
+private:
+    QPixmap m_canvas;   // 双缓冲画布
+    QImage  m_brush;    // 当前笔刷
+    QPoint  m_brushPos; // 仅记录最后一次笔刷位置（调试用）
+};
+
+#endif // BRUSHPAD_H