Function WidgetDrawImage

src/openrct2-ui/interface/Widget.cpp:861–903

* * rct2: 0x006EB951 */

     *  rct2: 0x006EB951
     */
    static void WidgetDrawImage(RenderTarget& rt, WindowBase& w, WidgetIndex widgetIndex)
    {
        // Get the widget
        const auto& widget = w.widgets[widgetIndex];

        // Get the image
        if (widget.image.GetIndex() == kImageIndexUndefined)
            return;
        auto image = widget.image;

        // Resolve the absolute ltrb
        auto screenCoords = w.windowPos + ScreenCoordsXY{ widget.left, widget.top };

        if (widget.type == WidgetType::colourBtn || widget.type == WidgetType::trnBtn || widget.type == WidgetType::tab)
            if (widgetIsPressed(w, widgetIndex) || isToolActive(w, widgetIndex))
                image = image.WithIndexOffset(1);

        const auto colour = w.colours[widget.colour].colour;
        if (widgetIsDisabled(w, widgetIndex))
        {
            // Draw greyed out (light border bottom right shadow)
            auto mappedColour = getColourMap(colour).lighter;
            GfxDrawSpriteSolid(rt, image, screenCoords + ScreenCoordsXY{ 1, 1 }, mappedColour);

            // Draw greyed out (dark)
            mappedColour = getColourMap(colour).midLight;
            GfxDrawSpriteSolid(rt, image, screenCoords, mappedColour);
        }
        else
        {
            if (image.HasSecondary())
            {
                // ?
            }

            if (image.IsBlended())
                image = image.WithBlended(false);
            else
                image = image.WithPrimary(colour);

            GfxDrawSprite(rt, image, screenCoords);
        }
    }

    bool widgetIsDisabled(const WindowBase& w, WidgetIndex widgetIndex)
    {