justasample/Source/Components/SampleEditor.cpp

/*
  ==============================================================================

    SampleEditorOverlay.cpp
    Created: 19 Sep 2023 2:03:29pm
    Author:  binya

  ==============================================================================
*/

#include <JuceHeader.h>

#include "SampleEditor.h"

SampleEditorOverlay::SampleEditorOverlay(const APVTS& apvts, PluginParameters::State& pluginState, const juce::OwnedArray<CustomSamplerVoice>& synthVoices, UIDummyParam& dummy, CustomComponent* forwardEventsTo) :
    synthVoices(synthVoices), dummyParam(dummy),
    viewStart(pluginState.viewStart),
    viewEnd(pluginState.viewEnd),
    sampleStart(pluginState.sampleStart),
    sampleEnd(pluginState.sampleEnd),
    loopStart(pluginState.loopStart),
    loopEnd(pluginState.loopEnd),
    pinnedBounds(pluginState.pinView),
    isWavetableModeDisabled(dynamic_cast<juce::AudioParameterBool*>(apvts.getParameter(PluginParameters::DISABLE_WAVETABLE_MODE))),
    isLooping(dynamic_cast<juce::AudioParameterBool*>(apvts.getParameter(PluginParameters::IS_LOOPING))),
    loopingHasStart(dynamic_cast<juce::AudioParameterBool*>(apvts.getParameter(PluginParameters::LOOPING_HAS_START))),
    loopingHasEnd(dynamic_cast<juce::AudioParameterBool*>(apvts.getParameter(PluginParameters::LOOPING_HAS_END))),
    isWavetableModeDisabledAttachment(*isWavetableModeDisabled, [this](bool) { repaint(); }, apvts.undoManager),
    isLoopingAttachment(*isLooping, [this](bool) { repaint(); }, apvts.undoManager),
    loopingHasStartAttachment(*loopingHasStart, [this](bool) { repaint(); }, apvts.undoManager),
    loopingHasEndAttachment(*loopingHasEnd, [this](bool) { repaint(); }, apvts.undoManager),
    forwardMouseEvents(forwardEventsTo)
{
    viewStart.addListener(this);
    viewEnd.addListener(this);
    sampleStart.addListener(this);
    sampleEnd.addListener(this);
    loopStart.addListener(this);
    loopEnd.addListener(this);
}

SampleEditorOverlay::~SampleEditorOverlay()
{
    viewStart.removeListener(this);
    viewEnd.removeListener(this);
    sampleStart.removeListener(this);
    sampleEnd.removeListener(this);
    loopStart.removeListener(this);
    loopEnd.removeListener(this);
}

//==============================================================================
void SampleEditorOverlay::valueChanged(ListenableValue<int>&, int)
{
    safeRepaint();
}

void SampleEditorOverlay::paint(juce::Graphics& g)
{
    if (viewStart == 0 && viewEnd == 0)
        return;

    using namespace juce;

    auto colors = getTheme();

    // Draw voice positions
    auto waveformMode = isWaveformMode();
    auto gain = 0.f;
    for (auto& voice : synthVoices)
    {
        if (voice->isPlaying())
        {
            int location = int(std::ceil(voice->getPosition()));
            auto pos = sampleToPosition(location) + getWidth() * Layout::boundsWidth;

            Path voicePosition;
            voicePosition.addLineSegment(Line<float>(pos, 0.f, pos, float(getHeight())), 1);

            if (!waveformMode)
            {
                g.setColour(colors.light.withAlpha(voice->getEnvelopeGain()));
                g.strokePath(voicePosition, PathStrokeType(Layout::playheadWidth * getWidth()));
            }

            gain += voice->getEnvelopeGain() / synthVoices.size();
        }
    }

    float boundsWidth = getBoundsWidth();
    float boundsSeparation = jmax(5 * boundsWidth, sampleToPosition(viewStart + Feel::MINIMUM_BOUNDS_DISTANCE) + 2 * boundsWidth);
    float handleStrokeWidth = Layout::handleWidth * getWidth();

    float startPos = sampleToPosition(sampleStart);
    float endPos = sampleToPosition(sampleEnd) + boundsWidth;
    float loopStartPos = sampleToPosition(loopStart);
    float loopEndPos = sampleToPosition(loopEnd) + boundsWidth;

    auto looping = isLooping->get() && !waveformMode;
    auto loopingWithStart = isLooping->get() && loopingHasStart->get() && !waveformMode;
    auto loopingWithEnd = isLooping->get() && loopingHasEnd->get() && !waveformMode;

    // Paint the backgrounds
    if (looping || waveformMode)
    {
        auto color = looping ? colors.loop.withAlpha(0.07f) : colors.highlight.withAlpha(jmin(gain * 0.5f, 0.2f));
        g.setColour(disabled(color));
        g.fillRect(Rectangle(startPos, 0.f, endPos - startPos, float(getHeight())));
    }

    g.setColour(disabled(colors.slate.withAlpha(0.15f)));
    g.fillRect(Rectangle(0.f, 0.f, loopingWithStart ? loopStartPos : startPos, float(getHeight())));
    g.fillRect(Rectangle(loopingWithEnd ? loopEndPos : endPos, 0.f, float(getWidth()) - endPos, float(getHeight())));

    // Paint the start bound
    Path startPosPath;
    startPosPath.addRectangle(startPos, 0.f, boundsWidth, float(getHeight()));
    (looping ? loopBoundsShadow : boundsShadow).render(g, startPosPath);
    auto color = looping ? colors.loop : waveformMode ? colors.highlight : colors.slate;
    g.setColour(dragging && draggingTarget == EditorParts::SAMPLE_START ? color.withAlpha(0.5f) : disabled(color));
    g.fillPath(startPosPath);

    if (isMouseOverOrDragging() && (!loopingWithStart || startPos - loopStartPos > boundsSeparation))
        g.strokePath(handleLeft, PathStrokeType(handleStrokeWidth), AffineTransform::translation(startPos, 0.f));
    if (isMouseOverOrDragging() && endPos - startPos > boundsSeparation)
        g.strokePath(handleRight, PathStrokeType(handleStrokeWidth), AffineTransform::translation(startPos, 0.f));
    
    // Paint the end bound
    Path endPosPath;
    endPosPath.addRectangle(endPos, 0.f, boundsWidth, float(getHeight()));
    (looping ? loopBoundsShadow : boundsShadow).render(g, endPosPath);
    g.setColour(dragging && draggingTarget == EditorParts::SAMPLE_END ? color.withAlpha(0.5f) : disabled(color));
    g.fillPath(endPosPath);

    if (isMouseOverOrDragging() && endPos - startPos > boundsSeparation)
        g.strokePath(handleLeft, PathStrokeType(handleStrokeWidth), AffineTransform::translation(endPos, 0.f));
    if (isMouseOverOrDragging() && (!loopingWithEnd || loopEndPos - endPos > boundsSeparation))
        g.strokePath(handleRight, PathStrokeType(handleStrokeWidth), AffineTransform::translation(endPos, 0.f));
  
    // Paint the loop bounds
    if (looping)
    {
        if (loopingWithStart)
        {
            Path loopStartPath;
            loopStartPath.addRectangle(loopStartPos, 0.f, boundsWidth, float(getHeight()));
            boundsShadow.render(g, loopStartPath);
            g.setColour(dragging && draggingTarget == EditorParts::LOOP_START ? colors.slate.withAlpha(0.5f) : disabled(colors.slate));
            g.fillPath(loopStartPath);

            if (isMouseOverOrDragging())
                g.strokePath(handleLeft, PathStrokeType(handleStrokeWidth), AffineTransform::translation(loopStartPos, 0.f));
            if (isMouseOverOrDragging() && startPos - loopStartPos > boundsSeparation)
                g.strokePath(handleRight, PathStrokeType(handleStrokeWidth), AffineTransform::translation(loopStartPos, 0.f));
        }
        if (loopingWithEnd) 
        {
            Path loopEndPath;
            loopEndPath.addRectangle(loopEndPos, 0.f, boundsWidth, float(getHeight()));
            boundsShadow.render(g, loopEndPath);
            g.setColour(dragging && draggingTarget == EditorParts::LOOP_END ? colors.slate.withAlpha(0.5f) : disabled(colors.slate));
            g.fillPath(loopEndPath);

            if (isMouseOverOrDragging() && loopEndPos - endPos > boundsSeparation)
                g.strokePath(handleLeft, PathStrokeType(handleStrokeWidth, PathStrokeType::curved, PathStrokeType::rounded), AffineTransform::translation(loopEndPos, 0.f));
            if (isMouseOverOrDragging())
                g.strokePath(handleRight, PathStrokeType(handleStrokeWidth, PathStrokeType::curved, PathStrokeType::rounded), AffineTransform::translation(loopEndPos, 0.f));
        }
    }

    Path innerShadowPath;
    innerShadowPath.addRectangle(getLocalBounds());
    innerShadow.render(g, innerShadowPath);
}

void SampleEditorOverlay::resized()
{
    int offset = int(0.0005f * getWidth());
    boundsShadow.setOffset({ offset, 0 }, 0);
    boundsShadow.setOffset({ -offset, 0 }, 1);
    loopBoundsShadow.setOffset({ offset, 0 }, 0);
    loopBoundsShadow.setOffset({ -offset, 0 }, 1);

    int innerShadowOffset = int(0.001f * getWidth());
    innerShadow.setOffset({ 0, innerShadowOffset }, 0);
    innerShadow.setOffset({ 0, -innerShadowOffset }, 1);

    float bounds = getBoundsWidth();
    float handleHeight = 0.04f * getWidth();

    handleLeft.clear();
    handleLeft.startNewSubPath(-bounds / 2.f, (getHeight() + handleHeight) / 2.f);
    handleLeft.lineTo(-bounds * 4.f / 3.f, getHeight() / 2.f);
    handleLeft.lineTo(-bounds / 2.f, (getHeight() - handleHeight) / 2.f);

    handleRight.clear();
    handleRight.startNewSubPath(bounds + bounds / 2.f, (getHeight() + handleHeight) / 2.f);
    handleRight.lineTo(bounds + bounds * 4.f / 3.f, getHeight() / 2.f);
    handleRight.lineTo(bounds + bounds / 2.f, (getHeight() - handleHeight) / 2.f);
}

void SampleEditorOverlay::enablementChanged()
{
    setInterceptsMouseClicks(isEnabled(), isEnabled());

    repaint();
}

void SampleEditorOverlay::lookAndFeelChanged()
{
    auto colors = getTheme();

    boundsShadow.setColor(colors.slate.withAlpha(0.25f), 0);
    boundsShadow.setColor(colors.slate.withAlpha(0.25f), 1);
    loopBoundsShadow.setColor(colors.loop.withAlpha(0.25f), 0);
    loopBoundsShadow.setColor(colors.loop.withAlpha(0.25f), 1);
    innerShadow.setColor(colors.slate.withAlpha(0.25f), 0);
    innerShadow.setColor(colors.slate.withAlpha(0.25f), 1);
}

//==============================================================================
void SampleEditorOverlay::mouseMove(const juce::MouseEvent& event)
{
    EditorParts editorPart = getClosestPartInRange(event.x, event.y);
    switch (editorPart)
    {
    case EditorParts::SAMPLE_START:
    case EditorParts::SAMPLE_END:
    case EditorParts::LOOP_START:
    case EditorParts::LOOP_END:
        setMouseCursor(juce::MouseCursor::LeftRightResizeCursor);
        break;
    case EditorParts::NONE:
        setMouseCursor(juce::MouseCursor::NormalCursor);
    }
}

void SampleEditorOverlay::mouseDown(const juce::MouseEvent& event)
{
    EditorParts closest = getClosestPartInRange(event.getMouseDownX(), event.getMouseDownY());
    switch (closest)
    {
    case EditorParts::NONE:
        if (forwardMouseEvents)
            forwardMouseEvents->mouseDown(event.getEventRelativeTo(forwardMouseEvents));
        break;
    default:
        dragging = true;
        draggingTarget = closest;
        repaint();
        break;
    }
}

void SampleEditorOverlay::mouseUp(const juce::MouseEvent& event)
{
    if (dragging)
        dummyParam.sendUIUpdate();

    dragging = false;

    EditorParts closest = getClosestPartInRange(event.getMouseDownX(), event.getMouseDownY());
    if (closest == EditorParts::NONE && forwardMouseEvents)
        forwardMouseEvents->mouseUp(event.getEventRelativeTo(forwardMouseEvents));

    repaint();
}

void SampleEditorOverlay::mouseDrag(const juce::MouseEvent& event)
{
    using namespace juce;

    if (!dragging)
        return;

    auto newSample = positionToSample(event.getMouseDownX() + event.getOffsetFromDragStart().getX() - getBoundsWidth());

    auto loopHasStart = isLooping->get() && loopingHasStart->get() && !isWaveformMode();
    auto loopHasEnd = isLooping->get() && loopingHasEnd->get() && !isWaveformMode();
    auto pin = pinnedBounds.load();

    auto minBufferSize = (1 + int(loopHasStart) + int(loopHasEnd)) * Feel::MINIMUM_BOUNDS_DISTANCE;
    if (sampleBuffer->getNumSamples() < minBufferSize)
        return;

    // An intricate way to handle the dragging of the bounds, hopefully for a user-friendly experience
    // Note that jmin(jmax(value, lower), upper) is equivalent to jlimit but uses the upper bound if min > max, while jmax(jmin(value, upper), lower) does the opposite
    switch (draggingTarget)
    {
    case EditorParts::LOOP_START:
        viewStart = jmax<int>(jmin<int>(viewStart, newSample), 0);
        viewEnd = jmin<int>(jmax<int>(viewEnd, newSample + (2 + int(loopHasEnd)) * Feel::MINIMUM_BOUNDS_DISTANCE), sampleBuffer->getNumSamples() - 1);

        if (newSample < loopStart)
        {
            loopStart = jmax(0, newSample);
        }
        else
        {
            loopEnd = jmin<int>(jmax<int>(loopEnd, newSample + 3 * Feel::MINIMUM_BOUNDS_DISTANCE), loopHasEnd && pin && loopEnd <= viewEnd ? viewEnd.load() : sampleBuffer->getNumSamples() - 1);
            sampleEnd = jmin<int>(jmax<int>(sampleEnd, newSample + 2 * Feel::MINIMUM_BOUNDS_DISTANCE), jmin<int>(loopHasEnd ? loopEnd - Feel::MINIMUM_BOUNDS_DISTANCE : loopEnd.load(), pin ? viewEnd.load() : sampleBuffer->getNumSamples() - 1));
            sampleStart = jmin<int>(jmax<int>(sampleStart, newSample + Feel::MINIMUM_BOUNDS_DISTANCE), sampleEnd - Feel::MINIMUM_BOUNDS_DISTANCE);
            loopStart = jmin<int>(newSample, sampleStart - Feel::MINIMUM_BOUNDS_DISTANCE);
        }

        break;
    case EditorParts::SAMPLE_START:
        viewStart = jmax<int>(jmin<int>(viewStart, newSample - int(loopHasStart) * Feel::MINIMUM_BOUNDS_DISTANCE), 0);
        viewEnd = jmin<int>(jmax<int>(viewEnd, newSample + (1 + int(loopHasEnd)) * Feel::MINIMUM_BOUNDS_DISTANCE), sampleBuffer->getNumSamples() - 1);

        if (newSample < sampleStart)
        {
            loopStart = jmax<int>(jmin<int>(loopStart, newSample - Feel::MINIMUM_BOUNDS_DISTANCE), loopHasStart && pin && loopStart >= viewStart ? viewStart.load() : 0);
            sampleStart = jmax<int>(newSample, loopStart + int(loopHasStart) * Feel::MINIMUM_BOUNDS_DISTANCE);
        }
        else
        {
            loopEnd = jmin<int>(jmax<int>(loopEnd, newSample + 2 * Feel::MINIMUM_BOUNDS_DISTANCE), loopHasEnd && pin && loopEnd <= viewEnd ? viewEnd.load() : sampleBuffer->getNumSamples() - 1);
            sampleEnd = jmin<int>(jmax<int>(sampleEnd, newSample + Feel::MINIMUM_BOUNDS_DISTANCE), jmin<int>(loopHasEnd ? loopEnd - Feel::MINIMUM_BOUNDS_DISTANCE : loopEnd.load(), pin ? viewEnd.load() : sampleBuffer->getNumSamples() - 1));
            sampleStart = jmin<int>(newSample, sampleEnd - Feel::MINIMUM_BOUNDS_DISTANCE);
        }

        break;
    case EditorParts::SAMPLE_END:
        viewStart = jmax<int>(jmin<int>(viewStart, newSample - (1 + int(loopHasStart)) * Feel::MINIMUM_BOUNDS_DISTANCE), 0);
        viewEnd = jmin<int>(jmax<int>(viewEnd, newSample + int(loopHasEnd) * Feel::MINIMUM_BOUNDS_DISTANCE), sampleBuffer->getNumSamples() - 1);

        if (newSample > sampleEnd)
        {
            loopEnd = jmin<int>(jmax<int>(loopEnd, newSample + Feel::MINIMUM_BOUNDS_DISTANCE), loopHasEnd && pin && loopEnd <= viewEnd ? viewEnd.load() : sampleBuffer->getNumSamples() - 1);
            sampleEnd = jmin<int>(newSample, loopEnd - int(loopHasEnd) * Feel::MINIMUM_BOUNDS_DISTANCE);
        }
        else
        {
            loopStart = jmax<int>(jmin<int>(loopStart, newSample - 2 * Feel::MINIMUM_BOUNDS_DISTANCE), loopHasStart && pin && loopStart >= viewStart ? viewStart.load() : 0);
            sampleStart = jmax<int>(jmin<int>(sampleStart, newSample - Feel::MINIMUM_BOUNDS_DISTANCE), jmax<int>(loopHasStart ? loopStart + Feel::MINIMUM_BOUNDS_DISTANCE : loopStart.load(), pin ? viewStart.load() : 0));
            sampleEnd = jmax<int>(newSample, sampleStart + Feel::MINIMUM_BOUNDS_DISTANCE);
        }

        break;
    case EditorParts::LOOP_END:
        viewStart = jmax<int>(jmin<int>(viewStart, newSample - (2 + int(loopHasStart)) * Feel::MINIMUM_BOUNDS_DISTANCE), 0);
        viewEnd = jmin<int>(jmax<int>(viewEnd, newSample), sampleBuffer->getNumSamples() - 1);

        if (newSample > loopEnd)
        {
            loopEnd = jmin(sampleBuffer->getNumSamples() - 1, newSample);
        }
        else
        {
            loopStart = jmax<int>(jmin<int>(loopStart, newSample - 3 * Feel::MINIMUM_BOUNDS_DISTANCE), loopHasStart && pin && loopStart >= viewStart ? viewStart.load() : 0);
            sampleStart = jmax<int>(jmin<int>(sampleStart, newSample - 2 * Feel::MINIMUM_BOUNDS_DISTANCE), jmax<int>(loopHasStart ? loopStart + Feel::MINIMUM_BOUNDS_DISTANCE : loopStart.load(),  pin ? viewStart.load() : 0));
            sampleEnd = jmax<int>(jmin<int>(sampleEnd, newSample - Feel::MINIMUM_BOUNDS_DISTANCE), sampleStart + Feel::MINIMUM_BOUNDS_DISTANCE);
            loopEnd = jmax<int>(newSample, sampleEnd + Feel::MINIMUM_BOUNDS_DISTANCE);
        }

        break;
    }
}

//==============================================================================
void SampleEditorOverlay::setSample(const juce::AudioBuffer<float>& sample, float bufferSampleRate)
{
    sampleBuffer = &sample;
    sampleRate = bufferSampleRate;
}

juce::String SampleEditorOverlay::getCustomHelpText()
{
    auto closest = dragging ? draggingTarget : getClosestPartInRange(getMouseXYRelative().getX(), getMouseXYRelative().getY());
    switch (closest)
    {
    case EditorParts::SAMPLE_START: return "Adjust sample start";
    case EditorParts::SAMPLE_END: return "Adjust sample end";
    case EditorParts::LOOP_START: return "Adjust loop start portion";
    case EditorParts::LOOP_END: return "Adjust loop release portion";
    default:
        if (forwardMouseEvents)
        {
            const auto& helpText = forwardMouseEvents->getCustomHelpText();
            if (helpText.isNotEmpty())
                return helpText;
        }

        return "Scroll to navigate";
    }
}

//==============================================================================
EditorParts SampleEditorOverlay::getClosestPartInRange(int x, int y) const
{
    auto startPos = sampleToPosition(sampleStart);
    auto endPos = sampleToPosition(sampleEnd);
    juce::Array targets = {
        CompPart {EditorParts::SAMPLE_START, juce::Rectangle(startPos + getBoundsWidth() / 2.f, 0.f, 1.f, float(getHeight())), 1},
        CompPart {EditorParts::SAMPLE_END, juce::Rectangle(endPos + 3 * getBoundsWidth() / 2.f, 0.f, 1.f, float(getHeight())), 1},
    };
    if (isLooping->get() && !isWaveformMode())
    {
        if (loopingHasStart->get())
            targets.add(CompPart{ EditorParts::LOOP_START, juce::Rectangle(sampleToPosition(loopStart) + getBoundsWidth() / 2.f, 0.f, 1.f, float(getHeight())), 1 });
        if (loopingHasEnd->get())
            targets.add(CompPart{ EditorParts::LOOP_END, juce::Rectangle(sampleToPosition(loopEnd) + 3 * getBoundsWidth() / 2.f, 0.f, 1.f, float(getHeight())), 1 });
    }
    return CompPart<EditorParts>::getClosestInRange(targets, x, y, Feel::DRAGGABLE_SNAP);
}

float SampleEditorOverlay::getBoundsWidth() const
{
    return Layout::boundsWidth * getWidth();
}

float SampleEditorOverlay::sampleToPosition(int sampleIndex) const
{
    return juce::jmap<float>(float(sampleIndex - viewStart), 0.f, float(viewEnd - viewStart), 0.f, float(getWidth() - 2 * getBoundsWidth()));
}

int SampleEditorOverlay::positionToSample(float position) const
{
    return viewStart + int(std::round(juce::jmap<float>(position, 0.f, float(getWidth() - 2 * getBoundsWidth()), 0.f, float(viewEnd - viewStart))));
}

bool SampleEditorOverlay::isWaveformMode() const
{
    return CustomSamplerVoice::isWavetableModeAvailable(sampleRate, sampleStart, sampleEnd) && !isWavetableModeDisabled->get();
}

/*
  ==============================================================================

    SampleEditor.cpp
    Created: 19 Sep 2023 2:03:29pm
    Author:  binya

  ==============================================================================
*/

SampleEditor::SampleEditor(APVTS& apvts, PluginParameters::State& pluginState, const juce::OwnedArray<CustomSamplerVoice>& synthVoices, const std::function<void(const juce::MouseWheelDetails& details, int centerSample)>& navScrollFunc) :
    apvts(apvts), pluginState(pluginState), dummyParam(apvts, PluginParameters::State::UI_DUMMY_PARAM),
    painter(pluginState.primaryChannel, 0.25f, &dummyParam),
    gainAttachment(*apvts.getParameter(PluginParameters::SAMPLE_GAIN), [this](float newValue) { painter.setGain(juce::Decibels::decibelsToGain(newValue)); }, apvts.undoManager),
    monoAttachment(*apvts.getParameter(PluginParameters::MONO_OUTPUT), [this](bool newValue) { painter.setMono(newValue); }, apvts.undoManager),
    overlay(apvts, pluginState, synthVoices, dummyParam, &painter), scrollFunc(navScrollFunc)
{
    pluginState.viewStart.addListener(this);
    pluginState.viewEnd.addListener(this);

    painter.setGain(juce::Decibels::decibelsToGain(float(apvts.getParameterAsValue(PluginParameters::SAMPLE_GAIN).getValue())));
    painter.setMono(bool(apvts.getParameterAsValue(PluginParameters::MONO_OUTPUT).getValue()));
    addAndMakeVisible(&painter);

    overlay.toFront(true);
    addAndMakeVisible(&overlay);

    boundsSelector.toFront(true);
    addAndMakeVisible(&boundsSelector);
}

SampleEditor::~SampleEditor()
{
    pluginState.viewStart.removeListener(this);
    pluginState.viewEnd.removeListener(this);
}

//==============================================================================
void SampleEditor::valueChanged(ListenableValue<int>& source, int /*newValue*/)
{
    if ((&source == &pluginState.viewStart || &source == &pluginState.viewEnd) && pluginState.viewStart < pluginState.viewEnd)
    {
        painter.setSampleView(pluginState.viewStart, pluginState.viewEnd);
    }
}

//==============================================================================
void SampleEditor::resized()
{
    auto bounds = getLocalBounds();

    overlay.setBounds(bounds);

    bounds.reduce(int(Layout::boundsWidth * bounds.getWidth()), 0);
    painter.setBounds(bounds.reduced(0, int(getWidth() * 0.01f)));
    boundsSelector.setBounds(bounds);
}

void SampleEditor::enablementChanged()
{
    overlay.setEnabled(isEnabled());
    painter.setEnabled(isEnabled());
}

void SampleEditor::mouseWheelMove(const juce::MouseEvent& event, const juce::MouseWheelDetails& wheel)
{
    if (!sampleBuffer || recordingMode)
        return;

    int sample = positionToSample(event.position.getX());
    scrollFunc(wheel, sample);
}

int SampleEditor::positionToSample(float position) const
{
    if (!sampleBuffer)
        return 0;

    return juce::jlimit<int>(0, sampleBuffer->getNumSamples() - 1, overlay.positionToSample(position - Layout::boundsWidth * getWidth()));
}

//==============================================================================
void SampleEditor::setSample(const juce::AudioBuffer<float>& sample, float bufferSampleRate, bool resetView)
{
    sampleBuffer = &sample;
    sampleRate = bufferSampleRate;

    if (resetView || recordingMode) 
        painter.setSample(sample);
    else
        painter.setSample(sample, pluginState.viewStart, pluginState.viewEnd);
    overlay.setSample(sample, bufferSampleRate);
}

void SampleEditor::setRecordingMode(bool recording)
{
    recordingMode = recording;
    overlay.setVisible(!recording);
}

bool SampleEditor::isRecordingMode() const
{
    return recordingMode;
}

void SampleEditor::sampleUpdated(int oldSize, int newSize)
{
    painter.appendToPath(oldSize, newSize - 1);
}

//==============================================================================
void SampleEditor::promptBoundsSelection(const std::function<void(int, int)>& callback)
{
    overlay.setEnabled(false);
    boundsSelector.promptRangeSelect([this, callback](int startPos, int endPos) -> void {
        return callback(positionToSample(float(startPos)), positionToSample(float(endPos)));
    });
}

void SampleEditor::cancelBoundsSelection()
{
    overlay.setEnabled(true);
    boundsSelector.cancelRangeSelect();
}

bool SampleEditor::isInBoundsSelection() const
{
    return boundsSelector.isSelectingRange();
}