volume_global.h

#pragma once
 
#include <gui/menu_item/unpatched_param/updating_reverb_params.h>
 
namespace deluge::gui::menu_item::sidechain {
class GlobalVolume final : public unpatched_param::UpdatingReverbParams {
public:
    using UpdatingReverbParams::UpdatingReverbParams;
 
    bool showColumnLabel() const override { return false; }
 
    void renderInHorizontalMenu(int32_t startX, int32_t width, int32_t startY, int32_t height) override {
        oled_canvas::Canvas& image = OLED::main;
 
        constexpr int32_t barWidth = 26;
        constexpr int32_t dotsInterval = 4;
        constexpr int32_t xOffset = 4;
 
        const int32_t leftPadding = (width - barWidth) / 2;
        const int32_t minX = startX + leftPadding;
        const int32_t maxX = minX + barWidth;
        const int32_t minY = startY + 3;
        const int32_t maxY = startY + height - 4;
 
        // Draw the dots at left and right sides
        for (int32_t y = minY; y <= maxY; y += dotsInterval) {
            if (y == minY + dotsInterval * 3) {
                // small offset for better balance
                y++;
            }
            image.drawPixel(minX + xOffset, y);
            image.drawPixel(maxX - xOffset, y);
        }
 
        // Calculate shape height based on value
        const float normalizedValue = getValue() / 50.0f;
        const int32_t barHeight = maxY - minY;
        const int32_t fillHeight = normalizedValue * barHeight;
 
        const int32_t yOffset = (barHeight - fillHeight) / 2;
        const int32_t yStart = minY + yOffset;
        const int32_t yEnd = yStart + fillHeight;
        const int32_t y0 = yEnd;
        const int32_t y1 = yStart;
 
        // Draw a sidechain level shape
        image.drawLine(minX + xOffset, y0, maxX - xOffset, y1, true);
        image.drawVerticalLine(minX + xOffset, yStart, yEnd);
        image.drawVerticalLine(minX + xOffset + 1, yStart, yEnd);
        image.drawHorizontalLine(y1 - 1, maxX - xOffset, maxX - 1);
        image.drawHorizontalLine(y1, maxX - xOffset, maxX - 1);
        image.drawHorizontalLine(y1 - 1, minX + 1, minX + xOffset + 1);
        image.drawHorizontalLine(y1, minX + 1, minX + xOffset + 1);
    }
};
} // namespace deluge::gui::menu_item::sidechain