biggy
e4cea300db
Round 1 findings and fixes, all previously uncommitted: - FXProcessor per-slot DSP history repair (HEAD does not compile without it) - SynthVoice::getModulationValue, editor control-lock guard - ExactCompare.h naming the deliberate exact float comparisons - KnobLookAndFeel replacing the never-installed SerumLookAndFeel - 55 first-party compiler warnings to 0 - AGENT.md renamed to AGENTS.md across Source/ - graft repository context graph and its hooks - JANITOR_TASKS.md and UI_UX_AUDIT.md records
86 lines
2.7 KiB
C++
86 lines
2.7 KiB
C++
#include "EnvelopeDisplay.h"
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#include "../Envelope.h"
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#include "../ExactCompare.h"
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namespace serum
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{
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void EnvelopeDisplay::setParams (float a, float d, float s, float r, float c)
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{
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if (! changed (attack, a) && ! changed (decay, d) && ! changed (sustain, s)
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&& ! changed (release, r) && ! changed (curve, c))
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return;
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attack = a; decay = d; sustain = s; release = r; curve = c;
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repaint();
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}
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void EnvelopeDisplay::paint (juce::Graphics& g)
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{
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const auto b = getLocalBounds().toFloat().reduced (4.0f);
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g.setColour (juce::Colours::black.withAlpha (0.4f));
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g.fillRoundedRectangle (b.expanded (4.0f), 4.0f);
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g.setColour (theme::outline);
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g.drawRoundedRectangle (b.expanded (4.0f).reduced (0.5f), 4.0f, 1.0f);
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const float atkShape = attackShapeFor (curve);
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const float decShape = decayShapeFor (curve);
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// Normalise durations for display, allowing a short sustain plateau.
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const float aSec = maps::toSeconds (attack);
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const float dSec = maps::toSeconds (decay);
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const float rSec = maps::toSeconds (release);
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const float total = aSec + dSec + rSec + 0.01f;
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const float ax = (aSec / total);
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const float dx = (dSec / total);
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const float rx = (rSec / total);
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const float left = b.getX();
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const float right = b.getRight();
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const float bottom = b.getBottom();
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const float top = b.getY();
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const float sustainY = bottom - sustain * b.getHeight();
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juce::Path path;
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path.startNewSubPath (left, bottom);
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// Attack (curve-shaped).
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const int steps = 48;
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const float peakX = left + ax * b.getWidth();
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for (int i = 0; i <= steps; ++i)
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{
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const float p = (float) i / steps;
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const float y = bottom - (bottom - top) * std::pow (p, atkShape);
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path.lineTo (left + p * (peakX - left), y);
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}
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// Decay to sustain.
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const float decX = peakX + dx * b.getWidth();
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for (int i = 0; i <= steps; ++i)
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{
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const float p = (float) i / steps;
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const float y = sustainY + (top - sustainY) * std::pow (1.0f - p, decShape);
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path.lineTo (peakX + p * (decX - peakX), y);
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}
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path.lineTo (decX, sustainY);
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path.lineTo (right - rx * b.getWidth(), sustainY);
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// Release.
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const float relStartX = right - rx * b.getWidth();
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for (int i = 0; i <= steps; ++i)
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{
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const float p = (float) i / steps;
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const float y = bottom - (bottom - sustainY) * std::pow (1.0f - p, decShape);
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path.lineTo (relStartX + p * (right - relStartX), y);
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}
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g.setColour (theme::accent2.withAlpha (0.3f));
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juce::Path fill = path;
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fill.lineTo (right, bottom);
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fill.closeSubPath();
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g.fillPath (fill);
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g.setColour (theme::accent2);
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g.strokePath (path, juce::PathStrokeType (1.5f));
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}
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} // namespace serum
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