diff options
Diffstat (limited to 'examples/quick/scenegraph/customgeometry/doc/src/customgeometry.qdoc')
| -rw-r--r-- | examples/quick/scenegraph/customgeometry/doc/src/customgeometry.qdoc | 32 |
1 files changed, 16 insertions, 16 deletions
diff --git a/examples/quick/scenegraph/customgeometry/doc/src/customgeometry.qdoc b/examples/quick/scenegraph/customgeometry/doc/src/customgeometry.qdoc index d98407b6c1..e3cef52bf7 100644 --- a/examples/quick/scenegraph/customgeometry/doc/src/customgeometry.qdoc +++ b/examples/quick/scenegraph/customgeometry/doc/src/customgeometry.qdoc @@ -41,7 +41,7 @@ \section1 BezierCurve Declaration - \snippet quick/scenegraph/customgeometry/beziercurve.h 1 + \snippet scenegraph/customgeometry/beziercurve.h 1 The item declaration subclasses the QQuickItem class and adds five properties. One for each of the four control points in the bezier @@ -52,7 +52,7 @@ signals for each of them so changes will be picked up the QML engine and used accordingly. - \snippet quick/scenegraph/customgeometry/beziercurve.h 2 + \snippet scenegraph/customgeometry/beziercurve.h 2 The synchronization point between the QML scene and the rendering scene graph is the virtual function \l @@ -67,7 +67,7 @@ \section1 BezierCurve Implementation - \snippet quick/scenegraph/customgeometry/beziercurve.cpp 1 + \snippet scenegraph/customgeometry/beziercurve.cpp 1 The BezierCurve constructor sets up default values for the control points and the number of segments. The bezier curve @@ -80,7 +80,7 @@ QQuickItem::updatePaintNode() when it is time for the QML scene to be synchronized with the rendering scene graph. - \snippet quick/scenegraph/customgeometry/beziercurve.cpp 2 + \snippet scenegraph/customgeometry/beziercurve.cpp 2 The BezierCurve class has no data members that need to be cleaned up so the destructor does nothing. It is worth mentioning that the @@ -89,7 +89,7 @@ QSGNode references in the QQuickItem class nor try to clean them up explicitly. - \snippet quick/scenegraph/customgeometry/beziercurve.cpp 3 + \snippet scenegraph/customgeometry/beziercurve.cpp 3 The setter function for the p1 property checks if the value is unchanged and exits early if this is the case. Then it updates the @@ -103,7 +103,7 @@ The other property setters are equivalent, and are omitted from this example. - \snippet quick/scenegraph/customgeometry/beziercurve.cpp 4 + \snippet scenegraph/customgeometry/beziercurve.cpp 4 The updatePaintNode() function is the primary integration point for synchronizing the state of the QML scene with the rendering @@ -113,7 +113,7 @@ our QSGGeometryNode which we will fill with geometry and a material. - \snippet quick/scenegraph/customgeometry/beziercurve.cpp 5 + \snippet scenegraph/customgeometry/beziercurve.cpp 5 We then create the geometry and add it to the node. The first argument to the QSGGeometry constructor is a definition of the @@ -135,7 +135,7 @@ geometry a member of a QSGGeometryNode subclass, in which case, we would not have set the QSGGeometryNode::OwnsGeometry flag. - \snippet quick/scenegraph/customgeometry/beziercurve.cpp 6 + \snippet scenegraph/customgeometry/beziercurve.cpp 6 The scene graph API provides a few commonly used used material implementations. In this example we use the QSGFlatColorMaterial @@ -143,7 +143,7 @@ color. Again we pass the ownership of the material to the node, so it can be cleaned up by the scene graph. - \snippet quick/scenegraph/customgeometry/beziercurve.cpp 7 + \snippet scenegraph/customgeometry/beziercurve.cpp 7 In the case where the QML item has changed and we only want to modify the existing node's geometry, we cast the \c oldNode to a @@ -151,7 +151,7 @@ segment count has changed, we call QSGGeometry::allocate() to make sure it has the right number of vertices. - \snippet quick/scenegraph/customgeometry/beziercurve.cpp 8 + \snippet scenegraph/customgeometry/beziercurve.cpp 8 To fill the geometry, we first extract the vertex array from it. Since we are using one of the default attribute sets, we can @@ -159,14 +159,14 @@ Then we go through each segment and calculate its position and write that value to the vertex. - \snippet quick/scenegraph/customgeometry/beziercurve.cpp 9 + \snippet scenegraph/customgeometry/beziercurve.cpp 9 In the end of the function, we return the node so the scene graph can render it. \section1 Application Entry-Point - \snippet quick/scenegraph/customgeometry/main.cpp 1 + \snippet scenegraph/customgeometry/main.cpp 1 The application is a straightforward QML application, with a QGuiApplication and a QQuickView that we pass a .qml file. To make @@ -183,24 +183,24 @@ \section1 Using the Item - \snippet quick/scenegraph/customgeometry/main.qml 1 + \snippet scenegraph/customgeometry/main.qml 1 Our .qml file imports the \c {QtQuick 2.0} module to get the standard types and also our own \c {CustomGeometry 1.0} module which contains our newly created BezierCurve objects. - \snippet quick/scenegraph/customgeometry/main.qml 2 + \snippet scenegraph/customgeometry/main.qml 2 Then we create the our root item and an instance of the BezierCurve which we anchor to fill the root. - \snippet quick/scenegraph/customgeometry/main.qml 3 + \snippet scenegraph/customgeometry/main.qml 3 To make the example a bit more interesting we add an animation to change the two control points in the curve. The end points stay unchanged. - \snippet quick/scenegraph/customgeometry/main.qml 4 + \snippet scenegraph/customgeometry/main.qml 4 Finally we overlay a short text outlining what the example shows. |