From eb0a72576c71557c8bb64cfd319620f5ea7ba24c Mon Sep 17 00:00:00 2001
From: TheMarlboroMan <marlborometal@gmail.com>
Date: Sun, 15 Nov 2020 16:50:27 +0100
Subject: Implementation of the voice limiting feature.

---
 plugingui/voicelimitframecontent.cc | 123 ++++++++++++++++++++++++++++++++++++
 1 file changed, 123 insertions(+)
 create mode 100644 plugingui/voicelimitframecontent.cc

(limited to 'plugingui/voicelimitframecontent.cc')

diff --git a/plugingui/voicelimitframecontent.cc b/plugingui/voicelimitframecontent.cc
new file mode 100644
index 0000000..c7c8c28
--- /dev/null
+++ b/plugingui/voicelimitframecontent.cc
@@ -0,0 +1,123 @@
+/***************************************************************************
+ *            voicelimitframecontent.cc
+ *
+ *  Wed Aug 26 14:53:03 CEST 2020
+ *  Copyright 2020 The Marlboro Man
+ *  marlborometal@gmail.com
+ ****************************************************************************/
+
+/*
+ *  This file is part of DrumGizmo.
+ *
+ *  DrumGizmo is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU Lesser General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  DrumGizmo is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public License
+ *  along with DrumGizmo; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
+ */
+#include "voicelimitframecontent.h"
+
+#include <settings.h>
+
+namespace GUI
+{
+
+VoiceLimitFrameContent::VoiceLimitFrameContent(Widget* parent,
+                                               Settings& settings,
+                                               SettingsNotifier& settings_notifier)
+	: Widget(parent)
+	, settings(settings)
+	, settings_notifier(settings_notifier)
+{
+	//Setup frame.
+	label_text.setText(_("Per-instrument voice limit:"));
+	label_text.setAlignment(TextAlignment::center);
+
+	//Setup layout
+	layout.setResizeChildren(false);
+
+	auto setup_control =
+		[](Knob& knob,
+		   LabeledControl& label,
+		   GridLayout& layout,
+		   const GridLayout::GridRange& gridrange,
+		   float min,
+		   float max,
+		   float defaultval)
+		{
+			knob.resize(30, 30);
+			knob.showValue(false);
+			knob.setDefaultValue(defaultval);
+			knob.setRange(min, max);
+			label.resize(80, 80);
+			label.setControl(&knob);
+			layout.addItem(&label);
+			layout.setPosition(&label, gridrange);
+	};
+
+	setup_control(knob_max_voices, lc_max_voices, layout, {0, 1, 0, 1},
+	              1.0f, 30.0f, Settings::voice_limit_max_default);
+
+	setup_control(knob_rampdown_time, lc_rampdown_time, layout, {1, 2, 0, 1},
+	              0.01f, 2.0f, Settings::voice_limit_rampdown_default);
+
+
+	auto voices_transform =
+		[this](double new_value, double scale, double offset) -> std::string
+		{
+			new_value *= scale;
+			new_value += offset;
+			return std::to_string(convertMaxVoices(new_value));
+		};
+
+	lc_max_voices.setValueTransformationFunction(voices_transform);
+
+	//GUI to settings.
+	CONNECT(&knob_max_voices, valueChangedNotifier,
+	        this, &VoiceLimitFrameContent::maxvoicesKnobValueChanged);
+
+	CONNECT(&knob_rampdown_time, valueChangedNotifier,
+	        this, &VoiceLimitFrameContent::rampdownKnobValueChanged);
+
+	//Settings to GUI
+	CONNECT(this, settings_notifier.voice_limit_max,
+	        this, &VoiceLimitFrameContent::maxvoicesSettingsValueChanged);
+
+	CONNECT(this, settings_notifier.voice_limit_rampdown,
+	        this, &VoiceLimitFrameContent::rampdownSettingsValueChanged);
+}
+
+void VoiceLimitFrameContent::maxvoicesKnobValueChanged(float value)
+{
+	settings.voice_limit_max.store((int)value);
+}
+
+void VoiceLimitFrameContent::rampdownKnobValueChanged(float value)
+{
+	settings.voice_limit_rampdown.store(value);
+}
+
+void VoiceLimitFrameContent::maxvoicesSettingsValueChanged(float value)
+{
+	knob_max_voices.setValue(convertMaxVoices(value));
+}
+
+void VoiceLimitFrameContent::rampdownSettingsValueChanged(float value)
+{
+	knob_rampdown_time.setValue(value);
+}
+
+std::size_t VoiceLimitFrameContent::convertMaxVoices(float value)
+{
+	return static_cast<std::size_t>(value);
+}
+
+}
-- 
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