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| ** Copyright (C) 2017 The Qt Company Ltd. |
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| ** This file is part of the Qt Quick Templates 2 module of the Qt Toolkit. |
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| |
| #include "qquickroundbutton_p.h" |
| |
| #include <QtQuickTemplates2/private/qquickbutton_p_p.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| /*! |
| \qmltype RoundButton |
| \inherits Button |
| //! \instantiates QQuickRoundButton |
| \inqmlmodule QtQuick.Controls |
| \since 5.8 |
| \ingroup qtquickcontrols2-buttons |
| \brief A push-button control with rounded corners that can be clicked by the user. |
| |
| \image qtquickcontrols2-roundbutton.png |
| |
| RoundButton is identical to \l Button, except that it has a \l radius property |
| which allows the corners to be rounded without having to customize the |
| \l background. |
| |
| \snippet qtquickcontrols2-roundbutton.qml 1 |
| |
| \sa {Customizing RoundButton}, {Button Controls} |
| */ |
| |
| class QQuickRoundButtonPrivate : public QQuickButtonPrivate |
| { |
| Q_DECLARE_PUBLIC(QQuickRoundButton) |
| |
| public: |
| void setRadius(qreal newRadius = -1.0); |
| |
| qreal radius = 0; |
| bool explicitRadius = false; |
| }; |
| |
| void QQuickRoundButtonPrivate::setRadius(qreal newRadius) |
| { |
| Q_Q(QQuickRoundButton); |
| const qreal oldRadius = radius; |
| if (newRadius < 0) |
| radius = qMax<qreal>(0, qMin(width, height) / 2); |
| else |
| radius = newRadius; |
| |
| if (!qFuzzyCompare(radius, oldRadius)) |
| emit q->radiusChanged(); |
| } |
| |
| QQuickRoundButton::QQuickRoundButton(QQuickItem *parent) |
| : QQuickButton(*(new QQuickRoundButtonPrivate), parent) |
| { |
| } |
| |
| /*! |
| \qmlproperty real QtQuick.Controls::RoundButton::radius |
| |
| This property holds the radius of the button. |
| |
| To create a relatively square button that has slightly rounded corners, |
| use a small value, such as \c 3. |
| |
| To create a completely circular button (the default), use a value that is |
| equal to half of the width or height of the button, and make the button's |
| width and height identical. |
| |
| To reset this property back to the default value, set its value to |
| \c undefined. |
| */ |
| qreal QQuickRoundButton::radius() const |
| { |
| Q_D(const QQuickRoundButton); |
| return d->radius; |
| } |
| |
| void QQuickRoundButton::setRadius(qreal radius) |
| { |
| Q_D(QQuickRoundButton); |
| d->explicitRadius = true; |
| d->setRadius(radius); |
| } |
| |
| void QQuickRoundButton::resetRadius() |
| { |
| Q_D(QQuickRoundButton); |
| d->explicitRadius = false; |
| d->setRadius(); |
| } |
| |
| void QQuickRoundButton::geometryChanged(const QRectF &newGeometry, const QRectF &oldGeometry) |
| { |
| Q_D(QQuickRoundButton); |
| QQuickControl::geometryChanged(newGeometry, oldGeometry); |
| if (!d->explicitRadius) |
| d->setRadius(); |
| } |
| |
| QT_END_NAMESPACE |