Reimplementing the event handler of the focus event, in order to avoid
the update (redrawing) of the graphs every time when the OpenGL widget
grabs / releases the focus of the keyboard. This is done because we do
not need to redraw, while on the other hand on large data-sets, redrawing
can take a lot of time.
Signed-off-by: Yordan Karadzhov (VMware) <y.karadz@xxxxxxxxx>
---
kernel-shark/src/KsGLWidget.hpp | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/kernel-shark/src/KsGLWidget.hpp b/kernel-shark/src/KsGLWidget.hpp
index 3d428b1..c6fd787 100644
--- a/kernel-shark/src/KsGLWidget.hpp
+++ b/kernel-shark/src/KsGLWidget.hpp
@@ -64,6 +64,24 @@ public:
void loadColors();
+ /**
+ * Reimplementing the event handler of the focus event, in order to
+ * avoid the update (redrawing) of the graphs every time when the
+ * widget grabs the focus of the keyboard. This is done because we do
+ * not need to redraw, while on the other hand on large data-sets,
+ * redrawing can take a lot of time.
+ */
+ void focusInEvent(QFocusEvent* e) override {}
+
+ /**
+ * Reimplementing the event handler of the focus event, in order to
+ * avoid the update (redrawing) of the graphs every time when the
+ * widget releases the focus of the keyboard. This is done because we
+ * do not need to redraw, while on the other hand on large data-sets,
+ * redrawing can take a lot of time.
+ */
+ void focusOutEvent(QFocusEvent* e) override {}
+
/**
* Provide the widget with a pointer to the Dual Marker state machine
* object.
--
2.20.1
|