Add some missing data manipulation methods to bar proxy

+ Related widget example changes
+ Changed shadow perspective to get rid of some artifacts
+ Accessor for sample space size

Change-Id: I7c4d7038479b65016209624d8e2ea77794210005
Reviewed-by: Tomi Korpipää <tomi.korpipaa@digia.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/examples/widget/chart.h b/examples/widget/chart.h
index e42257ce..c4f21d7d 100644
--- a/examples/widget/chart.h
+++ b/examples/widget/chart.h
@@ -59,6 +59,11 @@ public:
     void addDataSet();
     void addRow();
     void addRows();
+    void changeItem();
+    void changeRow();
+    void changeRows();
+    void removeRow();
+    void removeRows();
     void changeStyle();
     void changePresetCamera();
     void changeTheme();