src/declarative/util/qdeclarativepropertychanges.cpp
changeset 33 3e2da88830cd
parent 30 5dc02b23752f
child 37 758a864f9613
--- a/src/declarative/util/qdeclarativepropertychanges.cpp	Tue Jul 06 15:10:48 2010 +0300
+++ b/src/declarative/util/qdeclarativepropertychanges.cpp	Wed Aug 18 10:37:55 2010 +0300
@@ -62,11 +62,11 @@
 /*!
     \qmlclass PropertyChanges QDeclarativePropertyChanges
     \since 4.7
-    \brief The PropertyChanges element describes new property values for a state.
+    \brief The PropertyChanges element describes new property bindings or values for a state.
 
     PropertyChanges provides a state change that modifies the properties of an item.
 
-    Here is a property change that modifies the text and color of a Text element
+    Here is a property change that modifies the text and color of a \l Text element
     when it is clicked:
     
     \qml
@@ -89,6 +89,21 @@
         MouseArea { anchors.fill: parent; onClicked: myText.state = 'myState' }
     }
     \endqml
+
+    By default, PropertyChanges will establish new bindings where appropriate.
+    For example, the following creates a new binding for myItem's \c height property.
+
+    \qml
+    PropertyChanges {
+        target: myItem
+        height: parent.height
+    }
+    \endqml
+
+    If you don't want a binding to be established (and instead just want to assign
+    the value of the binding at the time the state is entered),
+    you should set the PropertyChange's \l{PropertyChanges::explicit}{explicit}
+    property to \c true.
     
     State-specific script for signal handlers can also be specified:
 
@@ -130,7 +145,7 @@
     an Item's parent should be done using the associated change elements
     (ParentChange and AnchorChanges, respectively).
 
-    \sa {qmlstate}{States}, QtDeclarative
+    \sa {declarative/animation/states}{states example}, {qmlstate}{States}, QtDeclarative
 */
 
 /*!
@@ -485,8 +500,8 @@
     If explicit is set to true, any potential bindings will be interpreted as
     once-off assignments that occur when the state is entered.
 
-    In the following example, the addition of explicit prevents myItem.width from
-    being bound to parent.width. Instead, it is assigned the value of parent.width
+    In the following example, the addition of explicit prevents \c myItem.width from
+    being bound to \c parent.width. Instead, it is assigned the value of \c parent.width
     at the time of the state change.
     \qml
     PropertyChanges {