Class AudioFileWidget

plugins/Cardinal/src/AudioFile.cpp:522–682

};

struct AudioFileWidget : ModuleWidgetWithSideScrews<23> {
    static constexpr const float previewBoxHeight = 80.0f;
    static constexpr const float previewBoxBottom = 20.0f;
    static constexpr const float previewBoxRect[] = {8.0f,
                                                     380.0f - previewBoxHeight - previewBoxBottom,
                                                     15.0f * 23 - 16.0f,
                                                     previewBoxHeight};
    static constexpr const float startY_list = startY - 2.0f;
    static constexpr const float fileListHeight = 380.0f - startY_list - previewBoxHeight - previewBoxBottom * 1.5f;
    static constexpr const float startY_preview = startY_list + fileListHeight;

    CarlaInternalPluginModule* const module;
    bool idleCallbackActive = false;
    bool visible = false;
    float lastPosition = 0.0f;

    AudioFileWidget(CarlaInternalPluginModule* const m)
        : module(m)
    {
        setModule(module);
        setPanel(APP->window->loadSvg(asset::plugin(pluginInstance, "res/AudioFile.svg")));

        addChild(createWidget<ThemedScrew>(Vec(RACK_GRID_WIDTH, 0)));
        addChild(createWidget<ThemedScrew>(Vec(box.size.x - 4 * RACK_GRID_WIDTH, 0)));
        addChild(createWidget<ThemedScrew>(Vec(RACK_GRID_WIDTH, RACK_GRID_HEIGHT - RACK_GRID_WIDTH)));
        addChild(createWidget<ThemedScrew>(Vec(box.size.x - 2 * RACK_GRID_WIDTH, RACK_GRID_HEIGHT - RACK_GRID_WIDTH)));

        addOutput(createOutput<PJ301MPort>(Vec(startX_Out, startY_list * 0.5f - padding + 2.0f), module, 0));
        addOutput(createOutput<PJ301MPort>(Vec(startX_Out, startY_list * 0.5f + 2.0f), module, 1));

        if (m != nullptr)
        {
            AudioFileListWidget* const listw = new AudioFileListWidget(m);
            listw->box.pos = Vec(0, startY_list);
            listw->box.size = Vec(box.size.x, fileListHeight);
            addChild(listw);
        }
    }

    void drawLayer(const DrawArgs& args, int layer) override
    {
        if (layer != 1)
            return ModuleWidget::drawLayer(args, layer);

        const float alpha = 1.0f - (0.5f - settings::rackBrightness * 0.5f);
        char textInfo[0xff];

        if (module != nullptr && module->audioInfo.channels != 0)
        {
            const float audioPreviewBarHeight = previewBoxRect[3] - 20.0f;
            const size_t position = (module->audioInfo.position * 0.01f) * ARRAY_SIZE(module->audioInfo.preview);

            nvgFillColor(args.vg, nvgRGBAf(0.839f, 0.459f, 0.086f, alpha));

            for (size_t i=0; i<ARRAY_SIZE(module->audioInfo.preview); ++i)
            {
                const float value = module->audioInfo.preview[i];
                const float height = std::max(0.01f, value * audioPreviewBarHeight);