Axis label dragging support, part 2

Task-number: QTRD-2367

+ Added emitting selection signals
+ Added an example about creating an input handler for axis label dragging
- Snapshot for example docs to be taken

Change-Id: I641f4feb9e31c32023727b1c7c695324923accc4
Reviewed-by: Miikka Heikkinen <miikka.heikkinen@digia.com>

1 files changed, 23 insertions, 17 deletions

diff --git a/examples/datavisualization/custominput/doc/src/custominput.qdoc b/examples/datavisualization/custominput/doc/src/custominput.qdoc
index 59d3c090..46bcdb8d 100644
--- a/examples/datavisualization/custominput/doc/src/custominput.qdoc
+++ b/examples/datavisualization/custominput/doc/src/custominput.qdoc
@@ -22,49 +22,55 @@
     \ingroup qtdatavisualization_examples
     \brief Implementing custom input handler in a widget application.
 
-    The Custom Input example shows how to customize the 3D graph controls in a widget application using a custom graph input handler to capture and process mouse events.
-    The code in this example shows also how the camera is controlled by using QPropertyAnimation to animate the camera and item selection
-    is done on mouseover rather than clicking any mouse buttons. Also the code shows how to implement similar zoom with mouse wheel functionality as the default
-    input handler implements.
+    The Custom Input example shows how to customize the 3D graph controls in a widget application
+    using a custom graph input handler to capture and process mouse events.
+    The code in this example shows also how the camera is controlled by using QPropertyAnimation
+    to animate the camera and item selection is done on mouseover rather than clicking any mouse
+    buttons. Also the code shows how to implement similar zoom with mouse wheel functionality as
+    the default input handler implements.
 
     \image custominput-example.png
 
     \section1 Replacing default input handling
 
-    The default input handling mechanism is replaced by setting the active input handler of \l Q3DScatter
-    to \c CustomInputHandler that implements the custom behavior.
+    The default input handling mechanism is replaced by setting the active input handler of
+    Q3DScatter to \c CustomInputHandler that implements the custom behavior.
 
     \snippet custominput/scatterdatamodifier.cpp 0
 
     \section1 Implementing custom selection handling
 
-    The on mouseover selection handling is implemented in the \c CustomInputHandler that captures the mouse events.
-    It then stores the last known coordinates to the \l QAbstract3DInputHandler::inputPosition property.
+    The on mouseover selection handling is implemented in the \c CustomInputHandler that captures
+    the mouse events. It then stores the last known coordinates to the
+    QAbstract3DInputHandler::inputPosition property.
 
     \snippet custominput/custominputhandler.cpp 0
 
-    As the selection is one shot, and is cleared each time a 3D frame is rendered, a timer is setup to retrigger selection so that the selection moves to the item
-    currently under the mouse cursor as the camera animates around the graph even when the mouse cursor is not moving.
+    As the selection is one shot, and is cleared each time a 3D frame is rendered, a timer is setup
+    to retrigger selection so that the selection moves to the item currently under the mouse cursor
+    as the camera animates around the graph even when the mouse cursor is not moving.
 
     \snippet custominput/scatterdatamodifier.cpp 1
 
     \section1 Implementing custom zoom handling
 
-    The camera has a zoom factor that represents amount of zoom in percentages. In this example the zoom range is limited
-    between 10% and 500%. This range is then divided to four subranges where \c angleDelta is scaled to different amount of zoom change
-    based on the current subrange.
+    The camera has a zoom factor that represents amount of zoom in percentages. In this example the
+    zoom range is limited between 10% and 500%. This range is then divided to four subranges where
+    \c angleDelta is scaled to different amount of zoom change based on the current subrange.
 
     \snippet custominput/custominputhandler.cpp 1
 
     \section1 Implementing custom camera handling
 
-    The camera is animated to constantly rotate around the graph with two animations. The rotation around the graph is done with
-    a simple QPropertyAnimation that just increments during 20 seconds from 0 degrees to 360 degrees and sets the \l Q3DCamera::xRotation property.
+    The camera is animated to constantly rotate around the graph with two animations. The rotation
+    around the graph is done with a simple QPropertyAnimation that just increments during 20
+    seconds from 0 degrees to 360 degrees and sets the Q3DCamera::xRotation property.
 
     \snippet custominput/scatterdatamodifier.cpp 2
 
-    The camera movement up and down is implemented with a QSequentialAnimationGroup that varies the \l Q3DCamera::yRotation property of the camera
-    from 5 degrees to 45 degrees and back with in and out easing.
+    The camera movement up and down is implemented with a QSequentialAnimationGroup that varies
+    the Q3DCamera::yRotation property of the camera from 5 degrees to 45 degrees and back with in
+    and out easing.
 
     \snippet custominput/scatterdatamodifier.cpp 3
 */