SM-26 synthesizer: initial implementation

Source/LcdDisplay.h

@@ -0,0 +1,42 @@
+#pragma once
+
+#include <JuceHeader.h>
+
+class LcdDisplay : public juce::Component,
+                    private juce::Timer
+{
+public:
+    static constexpr int kCols = 80;
+    static constexpr int kRows = 4;
+
+    LcdDisplay();
+
+    void setLine (int row, const juce::String& s);
+    void showCursor (bool show);
+    void clear();
+    void paint (juce::Graphics&) override;
+
+private:
+    void timerCallback() override;
+
+    static constexpr int kCharW = 6;
+    static constexpr int kCharH = 9;
+
+    juce::String lines[kRows];
+    int cursorCol = 0;
+    int cursorRow = 0;
+    bool cursorVisible = false;
+
+    struct GlyphCache {
+        uint8_t rows[8] = {};
+        bool cached = false;
+    };
+
+    GlyphCache glyphCache[256];
+
+    void rasterize (juce::uint32 c);
+    uint8_t* getGlyph (juce::uint32 c);
+    juce::Font getMonoFont() const;
+
+    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (LcdDisplay)
+};