Function drawSingle

src/OpenLoco/src/Ui/WindowManager.cpp:816–894

0x004C5FC8

    // 0x004C5FC8
    static void drawSingle(Gfx::DrawingContext& drawingCtx, Window* w, int32_t left, int32_t top, int32_t right, int32_t bottom)
    {
        // Copy rt so we can crop it
        Gfx::RenderTarget rt = drawingCtx.currentRenderTarget();

        // Clamp left to 0
        int32_t overflow = left - rt.x;
        if (overflow > 0)
        {
            rt.x += overflow;
            rt.width -= overflow;
            if (rt.width <= 0)
            {
                return;
            }
            rt.pitch += overflow;
            rt.bits += overflow;
        }

        // Clamp width to right
        overflow = rt.x + rt.width - right;
        if (overflow > 0)
        {
            rt.width -= overflow;
            if (rt.width <= 0)
            {
                return;
            }
            rt.pitch += overflow;
        }

        // Clamp top to 0
        overflow = top - rt.y;
        if (overflow > 0)
        {
            rt.y += overflow;
            rt.height -= overflow;
            if (rt.height <= 0)
            {
                return;
            }
            rt.bits += (rt.width + rt.pitch) * overflow;
        }

        // Clamp height to bottom
        overflow = rt.y + rt.height - bottom;
        if (overflow > 0)
        {
            rt.height -= overflow;
            if (rt.height <= 0)
            {
                return;
            }
        }

        if (SceneManager::isProgressBarActive() && w->type != WindowType::progressBar)
        {
            return;