From: Joel Holdsworth <redacted>
Date: Tue, 1 Sep 2015 02:13:08 +0000 (-0600)
Subject: Signal: Added scale_handle_offset, scale_handle_dragged and scale_handle_released
X-Git-Tag: pulseview-0.3.0~76
X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=commitdiff_plain;h=214470fc17e73bbf4664f4c1678a7dd30c905bf2

Signal: Added scale_handle_offset, scale_handle_dragged and scale_handle_released
---

diff --git a/pv/view/analogsignal.cpp b/pv/view/analogsignal.cpp
index efde2941..df1edcf9 100644
--- a/pv/view/analogsignal.cpp
+++ b/pv/view/analogsignal.cpp
@@ -82,6 +82,16 @@ std::pair<int, int> AnalogSignal::v_extents() const
 	return make_pair(-NominalHeight / 2, NominalHeight / 2);
 }
 
+int AnalogSignal::scale_handle_offset() const
+{
+	return -NominalHeight / 3;
+}
+
+void AnalogSignal::scale_handle_dragged(int offset)
+{
+	(void)offset;
+}
+
 void AnalogSignal::paint_back(QPainter &p, const ViewItemPaintParams &pp)
 {
 	if (channel_->enabled())
diff --git a/pv/view/analogsignal.hpp b/pv/view/analogsignal.hpp
index 72ff23b3..58c2d3cb 100644
--- a/pv/view/analogsignal.hpp
+++ b/pv/view/analogsignal.hpp
@@ -59,6 +59,17 @@ public:
 	 */
 	std::pair<int, int> v_extents() const;
 
+	/**
+	 * Returns the offset to show the drag handle.
+	 */
+	int scale_handle_offset() const;
+
+	/**
+	 * Handles the scale handle being dragged to an offset.
+	 * @param offset the offset the scale handle was dragged to.
+	 */
+	void scale_handle_dragged(int offset);
+
 	/**
 	 * Paints the background layer of the signal with a QPainter
 	 * @param p the QPainter to paint into.
diff --git a/pv/view/logicsignal.cpp b/pv/view/logicsignal.cpp
index d529cabf..573d1b78 100644
--- a/pv/view/logicsignal.cpp
+++ b/pv/view/logicsignal.cpp
@@ -150,6 +150,16 @@ std::pair<int, int> LogicSignal::v_extents() const
 	return make_pair(-SignalHeight - SignalMargin, SignalMargin);
 }
 
+int LogicSignal::scale_handle_offset() const
+{
+	return SignalHeight;
+}
+
+void LogicSignal::scale_handle_dragged(int offset)
+{
+	(void)offset;
+}
+
 void LogicSignal::paint_back(QPainter &p, const ViewItemPaintParams &pp)
 {
 	if (channel_->enabled())
diff --git a/pv/view/logicsignal.hpp b/pv/view/logicsignal.hpp
index 0705613e..71dcc036 100644
--- a/pv/view/logicsignal.hpp
+++ b/pv/view/logicsignal.hpp
@@ -86,6 +86,17 @@ public:
 	 */
 	std::pair<int, int> v_extents() const;
 
+	/**
+	 * Returns the offset to show the drag handle.
+	 */
+	int scale_handle_offset() const;
+
+	/**
+	 * Handles the scale handle being dragged to an offset.
+	 * @param offset the offset the scale handle was dragged to.
+	 */
+	void scale_handle_dragged(int offset);
+
 	/**
 	 * Paints the background layer of the signal with a QPainter
 	 * @param p the QPainter to paint into.
diff --git a/pv/view/signal.hpp b/pv/view/signal.hpp
index d96a85cf..714b44f6 100644
--- 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();