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| |
| #include "qquickradiodelegate_p.h" |
| #include "qquickabstractbutton_p_p.h" |
| |
| #include <QtGui/qpa/qplatformtheme.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| /*! |
| \qmltype RadioDelegate |
| \inherits ItemDelegate |
| //! \instantiates QQuickRadioDelegate |
| \inqmlmodule QtQuick.Controls |
| \since 5.7 |
| \ingroup qtquickcontrols2-delegates |
| \brief Exclusive item delegate with a radio indicator that can be toggled on or off. |
| |
| \image qtquickcontrols2-radiodelegate.gif |
| |
| RadioDelegate presents an item delegate that can be toggled on (checked) or |
| off (unchecked). Radio delegates are typically used to select one option |
| from a set of options. |
| |
| RadioDelegate inherits its API from \l ItemDelegate, which is inherited |
| from AbstractButton. For instance, you can set \l {AbstractButton::text}{text}, |
| and react to \l {AbstractButton::clicked}{clicks} using the AbstractButton |
| API. The state of the radio delegate can be set with the |
| \l {AbstractButton::}{checked} property. |
| |
| Radio delegates are \l {AbstractButton::autoExclusive}{auto-exclusive} |
| by default. Only one delegate can be checked at any time amongst radio |
| delegates that belong to the same parent item; checking another delegate |
| automatically unchecks the previously checked one. For radio delegates |
| that do not share a common parent, ButtonGroup can be used to manage |
| exclusivity. |
| |
| \l RadioButton is similar to RadioDelegate, except that it is typically |
| not used in views, but rather when there are only a few options, and often |
| with the requirement that each button is uniquely identifiable. |
| |
| \code |
| ButtonGroup { |
| id: buttonGroup |
| } |
| |
| ListView { |
| model: ["Option 1", "Option 2", "Option 3"] |
| delegate: RadioDelegate { |
| text: modelData |
| checked: index == 0 |
| ButtonGroup.group: buttonGroup |
| } |
| } |
| \endcode |
| |
| \sa {Customizing RadioDelegate}, {Delegate Controls}, RadioButton |
| */ |
| |
| QQuickRadioDelegate::QQuickRadioDelegate(QQuickItem *parent) |
| : QQuickItemDelegate(parent) |
| { |
| setCheckable(true); |
| setAutoExclusive(true); |
| } |
| |
| QFont QQuickRadioDelegate::defaultFont() const |
| { |
| return QQuickTheme::font(QQuickTheme::ListView); |
| } |
| |
| QPalette QQuickRadioDelegate::defaultPalette() const |
| { |
| return QQuickTheme::palette(QQuickTheme::ListView); |
| } |
| |
| #if QT_CONFIG(accessibility) |
| QAccessible::Role QQuickRadioDelegate::accessibleRole() const |
| { |
| return QAccessible::RadioButton; |
| } |
| #endif |
| |
| QT_END_NAMESPACE |