gearmulator

commit 73e8e51cbf54ec17e7ac693d1e9d223c0d7fcffa
parent 70c1cf13d18db2a63972eacf1a470b383f404120
Author: dsp56300 <dsp56300@users.noreply.github.com>
Date:   Fri,  2 Aug 2024 00:19:37 +0200

begin LCD implementation

Diffstat:
M
source/nord/n2x/n2xJucePlugin/n2xLcd.cpp
 | 
100
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
M
source/nord/n2x/n2xJucePlugin/n2xLcd.h
 | 
35
++++++++++++++++++++++++++++++++---

2 files changed, 131 insertions(+), 4 deletions(-)
diff --git a/source/nord/n2x/n2xJucePlugin/n2xLcd.cpp b/source/nord/n2x/n2xJucePlugin/n2xLcd.cpp
@@ -1,8 +1,106 @@
 #include "n2xLcd.h"
 
+#include "n2xEditor.h"
+
 namespace n2xJucePlugin
 {
-	Lcd::Lcd(Editor& _editor): m_editor(_editor)
+	constexpr char space = 0x21;	// unit separator, i.e. full width space
+
+	constexpr uint32_t g_animDelayStart = 1000;
+	constexpr uint32_t g_animDelayScroll = 500;
+	constexpr uint32_t g_animDelayEnd = 1000;
+
+	Lcd::Lcd(Editor& _editor) : m_editor(_editor)
+	{
+		m_label = _editor.findComponentT<juce::Label>("PatchName");
+		setText("Hello World");
+	}
+
+	void Lcd::setText(const std::string& _text)
+	{
+		if(m_text == _text)
+			return;
+		m_text = _text;
+		onTextChanged();
+	}
+
+	void Lcd::timerCallback()
+	{
+		stopTimer();
+
+		switch(m_animState)
+		{
+		case AnimState::Start:
+			if(updateClippedText(m_text, ++m_currentOffset))
+			{
+				m_animState = AnimState::Scroll;
+				startTimer(g_animDelayScroll);
+			}
+			break;
+		case AnimState::Scroll:
+			if(!updateClippedText(m_text, ++m_currentOffset))
+			{
+				m_animState = AnimState::End;
+				startTimer(g_animDelayEnd);
+			}
+			else
+			{
+				startTimer(g_animDelayScroll);
+			}
+			break;
+		case AnimState::End:
+			m_animState = AnimState::Start;
+			m_currentOffset = 0;
+			updateClippedText(m_text, m_currentOffset);
+			startTimer(g_animDelayStart);
+			break;
+		}
+	}
+
+	void Lcd::setClippedText(const std::string& _text)
 	{
+		if(m_clippedText == _text)
+			return;
+		m_clippedText = _text;
+
+		auto t = _text;
+
+		for (char& c : t)
+		{
+			if(c == ' ')
+				c = space;
+		}
+
+		m_label->setText(t, juce::dontSendNotification);
+	}
+
+	bool Lcd::updateClippedText(const std::string& _text, const uint32_t _offset)
+	{
+		const auto str = _text.substr(_offset, 3);
+		if(str.size() < 3)
+			return false;
+		setClippedText(str);
+		return true;
+	}
+
+	void Lcd::startAnim()
+	{
+		m_currentOffset = 0;
+		m_animState = AnimState::Start;
+		startTimer(g_animDelayStart);
+	}
+
+	void Lcd::onTextChanged()
+	{
+		updateClippedText(m_text, 0);
+
+		if(m_clippedText != m_text)
+		{
+			startAnim();
+		}
+		else
+		{
+			stopTimer();
+		}
 	}
 }
diff --git a/source/nord/n2x/n2xJucePlugin/n2xLcd.h b/source/nord/n2x/n2xJucePlugin/n2xLcd.h
@@ -1,15 +1,45 @@
 #pragma once
 
+#include <string>
+
+#include "juce_events/juce_events.h"
+
+namespace juce
+{
+	class Label;
+}
+
 namespace n2xJucePlugin
 {
 	class Editor;
 
-	class Lcd
+	class Lcd : juce::Timer
 	{
 	public:
+		enum class AnimState
+		{
+			Start,
+			Scroll,
+			End
+		};
+
 		explicit Lcd(Editor& _editor);
 
+		void setText(const std::string& _key);
+
+		void timerCallback() override;
+
 	private:
+		void setClippedText(const std::string& _text);
+		bool updateClippedText(const std::string& _text, uint32_t _offset);
+		void startAnim();
+		void onTextChanged();
+
 		Editor& m_editor;
+		juce::Label* m_label;
+		std::string m_text;
+		std::string m_clippedText;
+		uint32_t m_currentOffset = 0;
+		AnimState m_animState = AnimState::Start;
 	};
-}
-\ No newline at end of file
+}