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Diffstat (limited to 'doc/src/declarative/binding.qdoc')
| -rw-r--r-- | doc/src/declarative/binding.qdoc | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/doc/src/declarative/binding.qdoc b/doc/src/declarative/binding.qdoc index e74e4b1..6168462 100644 --- a/doc/src/declarative/binding.qdoc +++ b/doc/src/declarative/binding.qdoc @@ -1,17 +1,17 @@ -/*! +/*! \page binding.html \title Data Binding \target binding Data binding provides a declarative way of specifying the data associated with objects, as well as the relationship between data of different objects. For example, you could bind the text of a label to the value of a slider: as the value of the slider changed, the label would be automatically updated with the new value. -Bindings are created in Qml when an expression is assigned to a property. For example, the following produces two Rects of equal size (\c rect2 is bound to the size of \c rect1): +Bindings are created in QML when an expression is assigned to a property. For example, the following produces two rectangles of equal size (\c rect2 is bound to the size of \c rect1): \code -Rect { id: rect1; width: 100; height: 100 } -Rect { id: rect2; width: rect1.width; height: rect1.height } +Rectangle { id: rect1; width: 100; height: 100 } +Rectangle { id: rect2; width: rect1.width; height: rect1.height } \endcode -There is also a special \l Bind element, which is typically used to bind from the UI to the underlying UI model (see \l {Passing Data Between C++ and Qml} for an example of this). The bindings above could be expressed using the \l Bind element as: +There is also a special \l Bind element, which is typically used to bind from the UI to the underlying UI model (see \l {Passing Data Between C++ and QML} for an example of this). The bindings above could be expressed using the \l Bind element as: \code Bind { target: rect2; property: "width"; value: rect1.width } @@ -29,8 +29,8 @@ Relevant items can also be bound to the contents of a model - see \l ListView fo Data can be bound to C++ objects - see \l {C++ Data Binding}. */ -/*! -\page qtbinding.html +/*! +\page qtbinding.html \target qtbinding \title C++ Data Binding @@ -41,11 +41,11 @@ The data binding framework is based on Qt's property system (see the Qt document Relevant items can also be bound to the contents of a Qt model. For example, ListView can make use of data from a QListModelInterface-derived model. (QListModelInterface is part of the next generation Model/View architecture being developed for Qt.) -\section1 Passing Data Between C++ and Qml +\section1 Passing Data Between C++ and QML -Data binding provides one method of data transfer between C++ and Qml. +Data binding provides one method of data transfer between C++ and QML. -For example, lets say you want to implement a slider in Qml that changes the screen brightness of the device it is running on. You would start by declaring a brightness property on your QObject-derived class: +For example, lets say you want to implement a slider in QML that changes the screen brightness of the device it is running on. You would start by declaring a brightness property on your QObject-derived class: \code class MyScreen : public QObject { @@ -84,7 +84,7 @@ void setBrightness(int b) \note One important thing to keep in mind is that the changed signal should only be emitted when there is a real change ( \c b \c != \c m_brightness ), or you may get an infinite loop. -Next, make an instance of this class visible to the Qml bind engine: +Next, make an instance of this class visible to the QML bind engine: \code QFxView *view = new QFxView; view->setUrl("MyUI.qml"); @@ -98,7 +98,7 @@ view->execute(); \note Bindings must be made after setUrl() but before execute(). -Finally, in Qml you can make the appropriate bindings, so in \c "MyUI.qml": +Finally, in QML you can make the appropriate bindings, so in \c "MyUI.qml": \code Slider { value: screen.brightness } |