Signal: Added scale_handle_offset, scale_handle_dragged and scale_handle_released

[pulseview.git] / pv / view / signal.hpp

diff --git a/pv/view/signal.hpp b/pv/view/signal.hpp
index d96a85cf3b82ca3854efcc1c99ff5bdf8759c9e4..714b44f6d9d27fcfc4881dc9e4850138f575b0a4 100644 (file)
--- a/pv/view/signal.hpp
+++ b/pv/view/signal.hpp
@@ -81,6 +81,22 @@ public:
 
        void delete_pressed();
 
+       /**
+        * Returns the offset to show the drag handle.
+        */
+       virtual int scale_handle_offset() const = 0;
+
+       /**
+        * Handles the scale handle being dragged to an offset.
+        * @param offset the offset the scale handle was dragged to.
+        */
+       virtual void scale_handle_dragged(int offset) = 0;
+
+       /**
+        * Handles the scale handle being being released.
+        */
+       virtual void scale_handle_released() {};
+
 private Q_SLOTS:
        void on_disable();