OB-Xd/Modules/gin/components/ginlookandfeel.cpp

//==============================================================================
GinLookAndFeel::GinLookAndFeel()
{
    setColour (GinLookAndFeel::colourId1, Colour (0xff020202));
    setColour (GinLookAndFeel::colourId2, Colour (0xff393d3f));
    setColour (GinLookAndFeel::colourId3, Colour (0xffc6c5b9));
    setColour (GinLookAndFeel::colourId4, Colour (0xfff4f4f9));
    setColour (GinLookAndFeel::colourId5, Colour (0xfffdfdff));
    
    setColour (Label::textColourId, defaultColour (4).withAlpha (0.9f));

    setColour (Slider::trackColourId, defaultColour (4));
    setColour (Slider::rotarySliderFillColourId, defaultColour (4));

    setColour (TextButton::buttonColourId, defaultColour (0));
    setColour (TextButton::buttonOnColourId, defaultColour (4));
    setColour (TextButton::textColourOffId, defaultColour (4));
    setColour (TextButton::textColourOnId, defaultColour (0));

    setColour (ComboBox::backgroundColourId, Colours::transparentWhite);
    setColour (ComboBox::outlineColourId, defaultColour (4));
    
    setColour (TextEditor::backgroundColourId, Colours::transparentWhite);
    setColour (TextEditor::textColourId, defaultColour (4));
    setColour (TextEditor::highlightColourId, defaultColour (4));
    setColour (TextEditor::highlightedTextColourId, defaultColour (0));
    setColour (TextEditor::outlineColourId, defaultColour (4));
    setColour (TextEditor::focusedOutlineColourId, defaultColour (4));
    setColour (TextEditor::shadowColourId, Colours::transparentWhite);
}

Colour GinLookAndFeel::defaultColour (int idx)
{
    switch (idx)
    {
        case 0: return findColour (GinLookAndFeel::colourId1);
        case 1: return findColour (GinLookAndFeel::colourId2);
        case 2: return findColour (GinLookAndFeel::colourId3);
        case 3: return findColour (GinLookAndFeel::colourId4);
        case 4: return findColour (GinLookAndFeel::colourId5);
    }
    return Colours::transparentWhite;
}

void GinLookAndFeel::drawLinearSlider (Graphics& g, int x, int y, int width, int height,
                                          float sliderPos, float /*minSliderPos*/, float /*maxSliderPos*/,
                                          const Slider::SliderStyle, Slider& slider)
{
    const bool isMouseOver = slider.isMouseOverOrDragging() && slider.isEnabled();
    auto rc = Rectangle<int> (x, y, width, height);
    rc = rc.withSizeKeepingCentre (width, jmin (height, 4));

    g.setColour (slider.findColour (Slider::trackColourId).withAlpha (0.1f));
    g.fillRect (rc);

    if (slider.isEnabled())
        g.setColour (slider.findColour (Slider::trackColourId).withAlpha (isMouseOver ? 0.95f : 0.85f));

    if (slider.isHorizontal())
        g.fillRect (Rectangle<float> (static_cast<float> (rc.getX()), rc.getY() + 0.5f, sliderPos - rc.getX(), rc.getHeight() - 1.0f));
    else
        g.fillRect (Rectangle<float> (rc.getX() + 0.5f, sliderPos, rc.getWidth() - 1.0f, rc.getY() + (rc.getHeight() - sliderPos)));
}

void GinLookAndFeel::drawRotarySlider (Graphics& g, int x, int y, int width, int height, float sliderPos,
                                          const float rotaryStartAngleIn, const float rotaryEndAngle, Slider& slider)
{
    float rotaryStartAngle = rotaryStartAngleIn;
    const float radius = jmin (width / 2, height / 2) - 2.0f;
    const float centreX = x + width * 0.5f;
    const float centreY = y + height * 0.5f;
    const float rx = centreX - radius;
    const float ry = centreY - radius;
    const float rw = radius * 2.0f;
    const float angle = rotaryStartAngle + sliderPos * (rotaryEndAngle - rotaryStartAngle);
    const bool isMouseOver = slider.isMouseOverOrDragging() && slider.isEnabled();

	const float thickness = (radius - 1) / radius;

	g.setColour (slider.findColour (Slider::rotarySliderFillColourId).withAlpha (0.1f));

	{
		Path filledArc;
		filledArc.addPieSegment (rx, ry, rw, rw, rotaryStartAngle, rotaryEndAngle, thickness);
		g.fillPath (filledArc);
	}

	if (slider.isEnabled())
		g.setColour (slider.findColour (Slider::rotarySliderFillColourId).withAlpha (isMouseOver ? 0.95f : 0.85f));

    auto fillStartAngle = rotaryStartAngle;
	if (slider.getProperties().contains ("fromCentre"))
		fillStartAngle = (rotaryStartAngle + rotaryEndAngle) / 2;

	{
		Path filledArc;
		filledArc.addPieSegment (rx, ry, rw, rw, fillStartAngle, angle, thickness);
		g.fillPath (filledArc);
	}

    if (slider.getProperties().contains ("modDepth"))
    {
        auto depth = (float)slider.getProperties()["modDepth"];
        bool bipolar = (bool)slider.getProperties()["modBipolar"];

        g.setColour (Colours::red.withAlpha (0.8f));

        Path filledArc;
        if (bipolar)
        {
            auto a = jlimit (rotaryStartAngle, rotaryEndAngle, angle - depth * (rotaryEndAngle - rotaryStartAngle));
            auto b = jlimit (rotaryStartAngle, rotaryEndAngle, angle + depth * (rotaryEndAngle - rotaryStartAngle));
            filledArc.addPieSegment (rx, ry, rw, rw, std::min (a, b), std::max (a, b), thickness);
        }
        else
        {
            auto modPos = jlimit (rotaryStartAngle, rotaryEndAngle, angle + depth * (rotaryEndAngle - rotaryStartAngle));
            filledArc.addPieSegment (rx, ry, rw, rw, angle, modPos, thickness);
        }

        g.fillPath (filledArc);
    }

    if (slider.getProperties().contains ("modValues"))
    {
        g.setColour (Colours::red.withAlpha (0.8f));

        auto varArray = slider.getProperties()["modValues"];
        if (varArray.isArray())
        {
            for (auto value : *varArray.getArray())
            {
                float modAngle = float (value) * (rotaryEndAngle - rotaryStartAngle) + rotaryStartAngle;

                float modX = centreX + std::sin (modAngle) * radius;
                float modY = centreY - std::cos (modAngle) * radius;

                g.fillEllipse (modX - 2, modY - 2, 4.0f, 4.0f);
            }
        }
    }
}

void GinLookAndFeel::drawButtonBackground (Graphics& g, Button& b, const Colour&,
                                              bool, bool)
{
    if (b.isMouseOver() && b.isEnabled())
    {
        g.setColour (b.findColour (TextButton::buttonOnColourId).withMultipliedAlpha (0.2f));
        g.fillRect (b.getLocalBounds());
    }
    
    g.setColour (b.findColour (TextButton::buttonOnColourId).withMultipliedAlpha (b.isEnabled() ? 1.0f : 0.5f));
    if (b.getToggleState())
        g.fillRect (b.getLocalBounds());
    else
        g.drawRect (b.getLocalBounds());
}

void GinLookAndFeel::drawButtonText (Graphics& g, TextButton& b, bool, bool)
{
    g.setFont (getTextButtonFont (b, b.getHeight()));

    g.setColour (b.findColour (b.getToggleState() ? TextButton::textColourOnId : TextButton::textColourOffId).withMultipliedAlpha (b.isEnabled() ? 1.0f : 0.5f));
    g.drawText (b.getButtonText(), b.getLocalBounds(), Justification::centred);
}

void GinLookAndFeel::drawComboBox (Graphics& g, int width, int height, bool /*isButtonDown*/,
                                      int /*buttonX*/, int /*buttonY*/, int /*buttonW*/, int /*buttonH*/,
                                      ComboBox& box)
{
    const Rectangle<int> boxBounds (0, 0, width, height);

    g.setColour (box.findColour (ComboBox::backgroundColourId));
    g.fillRect (boxBounds.toFloat());

    g.setColour (box.findColour (ComboBox::outlineColourId));
    g.drawRect (boxBounds);
}

void GinLookAndFeel::positionComboBoxText (ComboBox& box, Label& label)
{
    label.setBounds (1, 1, box.getWidth() - 1, box.getHeight() - 1);
    label.setFont (getComboBoxFont (box));
    label.setJustificationType (Justification::centred);
}

void GinLookAndFeel::drawTextEditorOutline (Graphics& g, int width, int height, TextEditor&)
{
    g.setColour (defaultColour (4));
    g.drawRect (0, 0, width, height);
}