52 lines
1.1 KiB
C
52 lines
1.1 KiB
C
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/*
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功能：界面中的饱和度(S)与亮度(V)区域
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大小256 * 256
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*/
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#ifndef SVCOLORAREA_H
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#define SVCOLORAREA_H
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#include <QWidget>
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class SVColorArea : public QWidget
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{
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Q_OBJECT
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public:
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SVColorArea(QWidget *parent);
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~SVColorArea();
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void setHue(int);
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void setSaturation(int);
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void setBrightness(int);
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void setHsv(int, int, int);
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void setColor(const QColor &);
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protected:
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void paintEvent(QPaintEvent *); //paint事件
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void mousePressEvent(QMouseEvent *); //鼠标按下事件
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void mouseMoveEvent(QMouseEvent *); //鼠标移动事件
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private:
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void drawSVPixmap();
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void createVPixmap(); //创建亮度渐变的pixmap
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void createSVPixmap(); //创建正方形区域的pixmap
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void updateSVPixmap(); //更新正方形区域的pixmap
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public slots:
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void hueChangedSlot(int);
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signals:
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void svChangedSignal(int, int, int);
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private:
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int m_iHue;
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int m_iSaturation;
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int m_iBrightness;
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const int m_iAreaWidth; //正方形区域的宽度
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QPixmap m_svPixmap; //正方形区域的pixmap
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QPixmap m_vPixmap; //亮度渐变的pixmap
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};
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#endif // SVCOLORAREA_H
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