Javi
51 lines
1.1 KiB
C++
51 lines
1.1 KiB
C++
#ifndef COLORLABEL_H
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#define COLORLABEL_H
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#include <QLabel>
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#include <QPaintEvent>
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#include <QEnterEvent>
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#include <QMouseEvent>
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#include <QCursor>
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class ColorLabel : public QLabel
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{
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Q_OBJECT
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public:
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ColorLabel(QWidget* parent = 0);
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~ColorLabel();
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//h∈(0, 360), s∈(0, 1), v∈(0, 1)
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QColor getColor(qreal h, qreal s, qreal v);
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void setHue(int hue);
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void pickColor(QPoint pos, bool picked = false);
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QColor getPickedColor();
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void setPickColor(bool picked);
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signals:
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void clicked();
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void pickedColor(QColor color);
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protected:
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void paintEvent(QPaintEvent*);
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void enterEvent(QEvent* e);
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void leaveEvent(QEvent* e);
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void mousePressEvent(QMouseEvent* e);
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void mouseMoveEvent(QMouseEvent* e);
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void mouseReleaseEvent(QMouseEvent* e);
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private:
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//calculate the color's rgb value in pos.
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QColor calColorAtPoint(QPointF pos);
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QCursor m_lastCursor;
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int m_hue = 0;
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bool m_workToPick;
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bool m_picking;
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bool m_pressed;
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QColor m_pickedColor;
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QPoint m_clickedPos;
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QPoint m_tipPoint;
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};
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#endif // COLORLABEL_H
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