Function viewportShiftPixels

src/OpenLoco/src/Ui/WindowManager.cpp:1429–1507

* 0x004C6A40 * * @param window @ * @param viewport @ */

     * @param viewport @<esi>
     */
    void viewportShiftPixels(Ui::Window* window, Ui::Viewport* viewport, int32_t dX, int32_t dY)
    {
        const auto index = indexOf(*window);
        for (auto it = _windows.begin() + index; it != _windows.end(); it++)
        {
            auto& w = *it;
            if (!w.isTranslucent())
            {
                continue;
            }

            if (viewport == w.viewports[0])
            {
                continue;
            }

            if (viewport == w.viewports[1])
            {
                continue;
            }

            if (viewport->x + viewport->width <= w.x)
            {
                continue;
            }

            if (w.x + w.width <= viewport->x)
            {
                continue;
            }

            if (viewport->y + viewport->height <= w.y)
            {
                continue;
            }

            if (w.y + w.height <= viewport->y)
            {
                continue;
            }

            auto left = w.x;
            auto top = w.y;
            auto right = w.x + w.width;
            auto bottom = w.y + w.height;

            // TODO: replace these with min/max
            auto cx = viewport->x;
            if (left < cx)
            {
                left = cx;
            }

            cx = viewport->x + viewport->width;
            if (right > cx)
            {
                right = cx;
            }