From 43ab0002e3048684b5661a5c341fc5f0e0f49f13 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9=20Nusser?= <andre.nusser@googlemail.com>
Date: Thu, 30 Apr 2020 22:25:44 +0200
Subject: Mark last input and output in powermap widget.

---
 plugingui/powerwidget.cc | 14 ++++++++++++++
 src/powermapfilter.cc    |  2 ++
 src/settings.h           | 15 +++++++++++++++
 3 files changed, 31 insertions(+)

diff --git a/plugingui/powerwidget.cc b/plugingui/powerwidget.cc
index 2d24fa0..7e8a904 100644
--- a/plugingui/powerwidget.cc
+++ b/plugingui/powerwidget.cc
@@ -105,6 +105,10 @@ PowerWidget::Canvas::Canvas(GUI::Widget* parent,
 	        this, &PowerWidget::Canvas::parameterChangedFloat);
 	CONNECT(this, settings_notifier.powermap_shelf,
 	        this, &PowerWidget::Canvas::parameterChangedBool);
+	CONNECT(this, settings_notifier.powermap_input,
+	        this, &PowerWidget::Canvas::parameterChangedFloat);
+	CONNECT(this, settings_notifier.powermap_output,
+	        this, &PowerWidget::Canvas::parameterChangedFloat);
 
 	parameterChangedFloat(0);
 }
@@ -170,6 +174,16 @@ void PowerWidget::Canvas::repaintEvent(GUI::RepaintEvent *repaintEvent)
 		p.drawLine(x0, y0 + height0, x0 + width0, y0);
 	}
 
+	// draw the input/output of the last hit
+	if(settings.powermap_input.load() != -1 && settings.powermap_output.load() != -1)
+	{
+		p.setColour(GUI::Colour(.8f, 0.0f, .2f, .5f));
+		p.drawLine(x0 + settings.powermap_input.load()*width0, y0 + height0,
+				   x0 + settings.powermap_input.load()*width0, y0);
+		p.drawLine(x0, y0 + height0 - settings.powermap_output.load()*height0,
+				   x0 + width0, y0 + height0 - settings.powermap_output.load()*height0);
+	}
+
 	// draw the fixed nodes of the spline
 	float rad = radius * width();
 	p.setColour(GUI::Colour{0.0f, 1.0f, 0.0f, 0.7f});
diff --git a/src/powermapfilter.cc b/src/powermapfilter.cc
index 702a837..45df51e 100644
--- a/src/powermapfilter.cc
+++ b/src/powermapfilter.cc
@@ -38,6 +38,7 @@ bool PowermapFilter::filter(event_t& event, size_t pos)
 	// the position is irrelevant for this filter
 	(void) pos;
 
+	settings.powermap_input.store(event.velocity);
 	if (settings.enable_powermap.load())
 	{
 		powermap.setFixed0({settings.powermap_fixed0_x.load(), settings.powermap_fixed0_y.load()});
@@ -47,6 +48,7 @@ bool PowermapFilter::filter(event_t& event, size_t pos)
 
 		event.velocity = powermap.map(event.velocity);
 	}
+	settings.powermap_output.store(event.velocity);
 
 	return true;
 }
diff --git a/src/settings.h b/src/settings.h
index 471d730..a3d21d0 100644
--- a/src/settings.h
+++ b/src/settings.h
@@ -154,6 +154,10 @@ struct Settings
 	Atomic<float> powermap_fixed2_y{1.};
 	Atomic<bool> powermap_shelf{true};
 
+	// Powermap visualizer; -1 is "none"
+	Atomic<float> powermap_input{-1.};
+	Atomic<float> powermap_output{-1.};
+
 	Atomic<std::size_t> audition_counter{0};
 	Atomic<std::string> audition_instrument;
 	Atomic<float> audition_velocity;
@@ -228,6 +232,9 @@ struct SettingsGetter
 	SettingRef<float> powermap_fixed2_y;
 	SettingRef<bool> powermap_shelf;
 
+	SettingRef<float> powermap_input;
+	SettingRef<float> powermap_output;
+
 	SettingRef<std::size_t> audition_counter;
 	SettingRef<std::string> audition_instrument;
 	SettingRef<float> audition_velocity;
@@ -284,6 +291,8 @@ struct SettingsGetter
 		, powermap_fixed2_x{settings.powermap_fixed2_x}
 		, powermap_fixed2_y{settings.powermap_fixed2_y}
 		, powermap_shelf{settings.powermap_shelf}
+		, powermap_input{settings.powermap_input}
+		, powermap_output{settings.powermap_output}
 		, audition_counter{settings.audition_counter}
 		, audition_instrument{settings.audition_instrument}
 		, audition_velocity{settings.audition_velocity}
@@ -357,6 +366,9 @@ public:
 	Notifier<float> powermap_fixed2_y;
 	Notifier<bool> powermap_shelf;
 
+	Notifier<float> powermap_input;
+	Notifier<float> powermap_output;
+
 	Notifier<std::size_t> audition_counter;
 	Notifier<std::string> audition_instrument;
 	Notifier<int> audition_velocity;
@@ -428,6 +440,9 @@ public:
 		EVAL(powermap_fixed2_y);
 		EVAL(powermap_shelf);
 
+		EVAL(powermap_input);
+		EVAL(powermap_output);
+
 		EVAL(audition_counter);
 		EVAL(audition_instrument);
 		EVAL(audition_velocity);
-- 
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