X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=blobdiff_plain;f=pv%2Fview%2Fsignal.hpp;h=db3286528a699964920cd47b3048d5daa7255428;hp=d96a85cf3b82ca3854efcc1c99ff5bdf8759c9e4;hb=223d0c3748033130e9f11ff9af3dc29661f380e9;hpb=4b5782e1c7b6fec1f9c4ff2ba6f282cadecd70cd

diff --git a/pv/view/signal.hpp b/pv/view/signal.hpp
index d96a85cf..db328652 100644
--- a/pv/view/signal.hpp
+++ b/pv/view/signal.hpp
@@ -28,6 +28,7 @@
 
 #include <stdint.h>
 
+#include "signalscalehandle.hpp"
 #include "trace.hpp"
 #include "viewitemowner.hpp"
 
@@ -81,6 +82,22 @@ 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();
 
@@ -88,6 +105,7 @@ protected:
 	pv::Session &session_;
 	std::shared_ptr<sigrok::Channel> channel_;
 
+	const std::shared_ptr<SignalScaleHandle> scale_handle_;
 	const item_list items_;
 
 	QComboBox *name_widget_;