Function initViewport

src/OpenLoco/src/Ui/Windows/IndustryWindow.cpp:232–292

0x00456C36

        // 0x00456C36
        static void initViewport(Window& self)
        {
            if (self.currentTab != Common::widx::tab_industry - Common::widx::tab_industry)
            {
                return;
            }

            self.callPrepareDraw();

            // Figure out the industry's position on the map.
            auto industry = IndustryManager::get(IndustryId(self.number));
            int16_t tileZ = World::TileManager::getHeight({ industry->x, industry->y }).landHeight;

            // Compute views.
            SavedView view = {
                industry->x,
                industry->y,
                ZoomLevel::quarter,
                static_cast<int8_t>(self.viewports[0]->getRotation()),
                tileZ,
            };
            // view.flags |= (1 << 14);

            ViewportFlags flags = ViewportFlags::none;
            if (self.viewports[0] != nullptr)
            {
                if (self.savedView == view)
                {
                    return;
                }

                flags = self.viewports[0]->flags;
                self.viewportRemove(0);
            }
            else
            {
                if (Config::get().gridlinesOnLandscape)
                {
                    flags |= ViewportFlags::gridlines_on_landscape;
                }
            }

            self.savedView = view;

            if (self.viewports[0] == nullptr)
            {
                auto widget = &self.widgets[widx::viewport];
                auto tile = World::Pos3({ industry->x, industry->y, tileZ });
                auto origin = Ui::Point(widget->left + self.x + 1, widget->top + self.y + 1);
                auto size = Ui::Size(widget->width() - 2, widget->height() - 2);
                ViewportManager::create(&self, 0, origin, size, self.savedView.zoomLevel, tile);
                self.invalidate();
                self.flags |= WindowFlags::viewportNoScrolling;
            }

            if (self.viewports[0] != nullptr)
            {
                self.viewports[0]->flags = flags;