1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
|
/*
* SPDX-FileCopyrightText: 2013-2020 Mattia Basaglia
*
* SPDX-License-Identifier: LGPL-3.0-or-later
*/
#ifndef GRADIENT_EDITOR_HPP
#define GRADIENT_EDITOR_HPP
#include "colorwidgets_global.hpp"
#include <QWidget>
#include <QGradient>
namespace color_widgets {
class ColorDialog;
/**
* \brief A slider that moves on top of a gradient
*/
class QCP_EXPORT GradientEditor : public QWidget
{
Q_OBJECT
Q_PROPERTY(QBrush background READ background WRITE setBackground NOTIFY backgroundChanged)
Q_PROPERTY(QGradientStops stops READ stops WRITE setStops NOTIFY stopsChanged)
Q_PROPERTY(QLinearGradient gradient READ gradient WRITE setGradient)
Q_PROPERTY(Qt::Orientation orientation READ orientation WRITE setOrientation)
Q_PROPERTY(int selectedStop READ selectedStop WRITE setSelectedStop NOTIFY selectedStopChanged)
Q_PROPERTY(QColor selectedColor READ selectedColor WRITE setSelectedColor)
public:
explicit GradientEditor(QWidget *parent = nullptr);
explicit GradientEditor(Qt::Orientation orientation, QWidget *parent = nullptr);
~GradientEditor();
QSize sizeHint() const override;
/// Get the background, it's visible for transparent gradient stops
QBrush background() const;
/// Set the background, it's visible for transparent gradient stops
void setBackground(const QBrush &bg);
/// Get the colors that make up the gradient
QGradientStops stops() const;
/// Set the colors that make up the gradient
void setStops(const QGradientStops &colors);
/// Get the gradient
QLinearGradient gradient() const;
/// Set the gradient
void setGradient(const QLinearGradient &gradient);
Qt::Orientation orientation() const;
/**
* \brief Dialog shown when double clicking a stop
*/
ColorDialog* dialog() const;
/**
* \brief Index of the currently selected gradient stop (or -1 if there is no selection)
*/
int selectedStop() const;
/**
* \brief Color of the selected stop
*/
QColor selectedColor() const;
public Q_SLOTS:
void setOrientation(Qt::Orientation);
void setSelectedStop(int stop);
void setSelectedColor(const QColor& color);
void addStop();
void removeStop();
Q_SIGNALS:
void backgroundChanged(const QBrush&);
void stopsChanged(const QGradientStops&);
void selectedStopChanged(int);
protected:
void paintEvent(QPaintEvent *ev) override;
void mousePressEvent(QMouseEvent *ev) override;
void mouseMoveEvent(QMouseEvent *ev) override;
void mouseReleaseEvent(QMouseEvent *ev) override;
void leaveEvent(QEvent * event) override;
void mouseDoubleClickEvent(QMouseEvent *event) override;
void dragEnterEvent(QDragEnterEvent *event) override;
void dragMoveEvent(QDragMoveEvent* event) override;
void dragLeaveEvent(QDragLeaveEvent *event) override;
void dropEvent(QDropEvent* event) override;
private Q_SLOTS:
void dialogUpdate(const QColor& c);
private:
class Private;
Private * const p;
};
} // namespace color_widgets
#endif // GRADIENT_EDITOR_HPP
|
