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39
40#ifndef QTGRADIENTWIDGET_H
41#define QTGRADIENTWIDGET_H
42
43#include <QtWidgets/QWidget>
44
45QT_BEGIN_NAMESPACE
46
47class QtGradientWidget : public QWidget
48{
49 Q_OBJECT
50 Q_PROPERTY(bool backgroundCheckered READ isBackgroundCheckered WRITE setBackgroundCheckered)
51public:
52 QtGradientWidget(QWidget *parent = 0);
53 ~QtGradientWidget();
54
55 QSize minimumSizeHint() const;
56 QSize sizeHint() const;
57 int heightForWidth(int w) const;
58
59 bool isBackgroundCheckered() const;
60 void setBackgroundCheckered(bool checkered);
61
62 QGradientStops gradientStops() const;
63
64 void setGradientType(QGradient::Type type);
65 QGradient::Type gradientType() const;
66
67 void setGradientSpread(QGradient::Spread spread);
68 QGradient::Spread gradientSpread() const;
69
70 void setStartLinear(const QPointF &point);
71 QPointF startLinear() const;
72
73 void setEndLinear(const QPointF &point);
74 QPointF endLinear() const;
75
76 void setCentralRadial(const QPointF &point);
77 QPointF centralRadial() const;
78
79 void setFocalRadial(const QPointF &point);
80 QPointF focalRadial() const;
81
82 void setRadiusRadial(qreal radius);
83 qreal radiusRadial() const;
84
85 void setCentralConical(const QPointF &point);
86 QPointF centralConical() const;
87
88 void setAngleConical(qreal angle);
89 qreal angleConical() const;
90
91public slots:
92 void setGradientStops(const QGradientStops &stops);
93signals:
94
95 void startLinearChanged(const QPointF &point);
96 void endLinearChanged(const QPointF &point);
97 void centralRadialChanged(const QPointF &point);
98 void focalRadialChanged(const QPointF &point);
99 void radiusRadialChanged(qreal radius);
100 void centralConicalChanged(const QPointF &point);
101 void angleConicalChanged(qreal angle);
102
103protected:
104 void paintEvent(QPaintEvent *e);
105 void mousePressEvent(QMouseEvent *e);
106 void mouseReleaseEvent(QMouseEvent *e);
107 void mouseMoveEvent(QMouseEvent *e);
108 void mouseDoubleClickEvent(QMouseEvent *e);
109
110private:
111 QScopedPointer<class QtGradientWidgetPrivate> d_ptr;
112 Q_DECLARE_PRIVATE(QtGradientWidget)
113 Q_DISABLE_COPY_MOVE(QtGradientWidget)
114};
115
116QT_END_NAMESPACE
117
118#endif
119