d750716608
- Needle VU meters with spring-mass-damper physics (analog inertia) - Swappable meter modes: GR needles + input bars, or input needles + GR bars - GR bar meters fill right-to-left (0dB=empty, -30dB=full) - Input bar meters fill left-to-right with green color - Optical cell: normalized parameters (eta=50) for proper audio-level response - Transformer: removed 3-band crossover artifacts, simplified waveshaping with dry/wet mix - Nickel/Iron/Steel with distinct but subtle harmonic character - Layout: optical left, discrete right, meters center, transformer+output bottom center
87 sor
2.9 KiB
C++
87 sor
2.9 KiB
C++
#pragma once
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#include <JuceHeader.h>
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class GRMeter : public juce::Component
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{
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public:
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void setGainReduction (float grDb)
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{
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// 0dB GR = 0.0 (empty), -30dB GR = 1.0 (full bar)
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// Bar fills from RIGHT to LEFT showing how much GR
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float clamped = juce::jlimit (-30.0f, 0.0f, grDb);
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float normalised = -clamped / 30.0f; // 0dB→0.0, -30dB→1.0
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currentLevel = std::max (normalised, currentLevel * 0.92f);
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if (normalised > peakLevel) peakLevel = normalised;
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else peakLevel *= 0.998f;
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leftToRight = false; // right-to-left
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repaint();
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}
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// Input level meter (left-to-right, linear level 0..1)
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void setInputLevel (float linearLevel)
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{
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float db = (linearLevel > 0.0001f) ? 20.0f * std::log10 (linearLevel) : -60.0f;
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// Map -30..0 dB to 0..1
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float normalised = juce::jlimit (0.0f, 1.0f, (db + 30.0f) / 30.0f);
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currentLevel = std::max (normalised, currentLevel * 0.92f);
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if (normalised > peakLevel) peakLevel = normalised;
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else peakLevel *= 0.998f;
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leftToRight = true;
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repaint();
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}
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void setBarColour (juce::Colour c) { barColour = c; }
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void setLabel (const juce::String& text) { label = text; }
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void paint (juce::Graphics& g) override
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{
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auto bounds = getLocalBounds().toFloat().reduced (1);
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g.setColour (juce::Colour (0xff111122));
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g.fillRoundedRectangle (bounds, 2.0f);
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float w = bounds.getWidth() * currentLevel;
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juce::Rectangle<float> filled;
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if (leftToRight)
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filled = bounds.withWidth (w); // left to right for input level
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else
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filled = bounds.withLeft (bounds.getRight() - w); // right to left for GR
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g.setColour (barColour);
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g.fillRoundedRectangle (filled, 2.0f);
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// Peak hold line
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if (peakLevel > 0.01f)
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{
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float peakX = leftToRight
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? bounds.getX() + bounds.getWidth() * peakLevel
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: bounds.getRight() - bounds.getWidth() * peakLevel;
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g.setColour (juce::Colours::white.withAlpha (0.8f));
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g.fillRect (peakX - 0.75f, bounds.getY(), 1.5f, bounds.getHeight());
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}
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// Label
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g.setColour (juce::Colour (0xffe0e0e0).withAlpha (0.7f));
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g.setFont (11.0f);
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g.drawText (label, bounds.reduced (4, 0), juce::Justification::centredLeft);
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// dB readout
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if (currentLevel > 0.001f)
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{
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float dbVal = leftToRight
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? (currentLevel * 30.0f - 30.0f) // input: -30..0 dB
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: (-currentLevel * 30.0f); // GR: 0..-30 dB
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g.drawText (juce::String (dbVal, 1) + " dB", bounds.reduced (4, 0),
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juce::Justification::centredRight);
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}
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}
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private:
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float currentLevel = 0.0f;
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float peakLevel = 0.0f;
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bool leftToRight = false;
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juce::Colour barColour { 0xffff8833 };
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juce::String label;
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};
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