Function showImage

src/OpenLoco/src/Ui/Dropdown.cpp:614–682

* 0x004CCDE7 * * @param x * @param y * @param width * @param height * @param heightOffset * @param colour * @param columnCount * @param count * @param flags */

     * @param flags
     */
    void showImage(int16_t x, int16_t y, int16_t width, int16_t height, int16_t heightOffset, AdvancedColour colour, uint8_t columnCount, uint8_t count, uint8_t flags)
    {
        assert(count < std::numeric_limits<uint8_t>::max());
        assert(count < std::size(kAppropriateImageDropdownItemsPerRow));

        common::setColourAndInputFlags(colour, flags);

        WindowManager::close(WindowType::dropdown, 0);
        _dropdownFlags = Flags::none;

        WindowManager::close(WindowType::dropdown, 0);
        _dropdownFlags = Flags::none;
        _dropdownItemHeight = height;
        _dropdownItemWidth = width;
        _dropdownItemCount = count;
        _dropdownColumnCount = columnCount;

        _dropdownRowCount = _dropdownItemCount / _dropdownColumnCount + ((_dropdownItemCount % _dropdownColumnCount) ? 1 : 0);
        uint16_t dropdownWidth = _dropdownItemWidth * _dropdownColumnCount + 3;
        common::widgets[0].right = dropdownWidth;
        uint16_t dropdownHeight = _dropdownItemHeight * _dropdownRowCount + 3;
        common::widgets[0].bottom = dropdownHeight;
        dropdownHeight++;

        Ui::Size size = { dropdownWidth, dropdownHeight };
        Ui::Point origin = { x, y };
        origin.y += heightOffset;

        size.height = dropdownHeight;
        if ((size.height + origin.y) > Ui::height() || origin.y < 0)
        {
            origin.y -= (heightOffset + dropdownHeight);
            auto dropdownBottom = origin.y;

            if (origin.y >= 0)
            {
                dropdownBottom = origin.y + dropdownHeight;
            }

            if (origin.y < 0 || dropdownBottom > Ui::height())
            {
                origin.x += common::widgets[0].right;
                origin.y = 0;
            }
        }

        size.width = common::widgets[0].right + 1;

        if (origin.x < 0)
        {
            origin.x = 0;
        }

        origin.x += size.width;

        if (origin.x > Ui::width())
        {
            origin.x = Ui::width();