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36
37 #include "qquickroundbutton_p.h"
38
39 #include <QtQuickTemplates2/private/qquickbutton_p_p.h>
40
41 QT_BEGIN_NAMESPACE
42
43 /*!
44 \qmltype RoundButton
45 \inherits Button
46 //! \instantiates QQuickRoundButton
47 \inqmlmodule QtQuick.Controls
48 \since 5.8
49 \ingroup qtquickcontrols2-buttons
50 \brief A push-button control with rounded corners that can be clicked by the user.
51
52 \image qtquickcontrols2-roundbutton.png
53
54 RoundButton is identical to \l Button, except that it has a \l radius property
55 which allows the corners to be rounded without having to customize the
56 \l background.
57
58 \snippet qtquickcontrols2-roundbutton.qml 1
59
60 \sa {Customizing RoundButton}, {Button Controls}
61 */
62
63 class QQuickRoundButtonPrivate : public QQuickButtonPrivate
64 {
65 Q_DECLARE_PUBLIC(QQuickRoundButton)
66
67 public:
68 void setRadius(qreal newRadius = -1.0);
69
70 qreal radius = 0;
71 bool explicitRadius = false;
72 };
73
setRadius(qreal newRadius)74 void QQuickRoundButtonPrivate::setRadius(qreal newRadius)
75 {
76 Q_Q(QQuickRoundButton);
77 const qreal oldRadius = radius;
78 if (newRadius < 0)
79 radius = qMax<qreal>(0, qMin(width, height) / 2);
80 else
81 radius = newRadius;
82
83 if (!qFuzzyCompare(radius, oldRadius))
84 emit q->radiusChanged();
85 }
86
QQuickRoundButton(QQuickItem * parent)87 QQuickRoundButton::QQuickRoundButton(QQuickItem *parent)
88 : QQuickButton(*(new QQuickRoundButtonPrivate), parent)
89 {
90 }
91
92 /*!
93 \qmlproperty real QtQuick.Controls::RoundButton::radius
94
95 This property holds the radius of the button.
96
97 To create a relatively square button that has slightly rounded corners,
98 use a small value, such as \c 3.
99
100 To create a completely circular button (the default), use a value that is
101 equal to half of the width or height of the button, and make the button's
102 width and height identical.
103
104 To reset this property back to the default value, set its value to
105 \c undefined.
106 */
radius() const107 qreal QQuickRoundButton::radius() const
108 {
109 Q_D(const QQuickRoundButton);
110 return d->radius;
111 }
112
setRadius(qreal radius)113 void QQuickRoundButton::setRadius(qreal radius)
114 {
115 Q_D(QQuickRoundButton);
116 d->explicitRadius = true;
117 d->setRadius(radius);
118 }
119
resetRadius()120 void QQuickRoundButton::resetRadius()
121 {
122 Q_D(QQuickRoundButton);
123 d->explicitRadius = false;
124 d->setRadius();
125 }
126
geometryChanged(const QRectF & newGeometry,const QRectF & oldGeometry)127 void QQuickRoundButton::geometryChanged(const QRectF &newGeometry, const QRectF &oldGeometry)
128 {
129 Q_D(QQuickRoundButton);
130 QQuickControl::geometryChanged(newGeometry, oldGeometry);
131 if (!d->explicitRadius)
132 d->setRadius();
133 }
134
135 QT_END_NAMESPACE
136