Accessible: Improve value interfacev5.0.0-rc2

The stepSize property was missing in Qt 4 and is
a sensible addition to the value interface.

Change-Id: I7571800d50ee7e4194c09c4db40300809a1ce45a
Reviewed-by: Jan Arve Sæther <jan-arve.saether@digia.com>
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@digia.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/src/plugins/accessible/widgets/simplewidgets.cpp b/src/plugins/accessible/widgets/simplewidgets.cpp
index 1bd509dc41..8bf71da6e1 100644
--- a/src/plugins/accessible/widgets/simplewidgets.cpp
+++ b/src/plugins/accessible/widgets/simplewidgets.cpp
@@ -832,6 +832,14 @@ QVariant QAccessibleProgressBar::minimumValue() const
     return progressBar()->minimum();
 }
 
+QVariant QAccessibleProgressBar::minimumStepSize() const
+{
+    // This is arbitrary since any value between min and max is valid.
+    // Some screen readers (orca use it to calculate how many digits to display though,
+    // so it makes sense to return a "sensible" value. Providing 100 increments seems ok.
+    return (progressBar()->maximum() - progressBar()->minimum()) / 100.0;
+}
+
 QProgressBar *QAccessibleProgressBar::progressBar() const
 {
     return qobject_cast<QProgressBar *>(object());