Function draw

src/OpenLoco/src/Ui/Windows/Construction/ConstructionTab.cpp:3223–3358

0x0049CF36

    // 0x0049CF36
    static void draw(Window& self, Gfx::DrawingContext& drawingCtx)
    {
        self.draw(drawingCtx);
        Common::drawTabs(self, drawingCtx);

        auto& cState = getConstructionState();

        if (!self.widgets[widx::bridge].hidden)
        {
            if (cState.lastSelectedBridge != 0xFF)
            {
                auto bridgeObj = ObjectManager::get<BridgeObject>(cState.lastSelectedBridge);
                if (bridgeObj != nullptr)
                {
                    auto company = CompanyManager::getPlayerCompany();
                    auto imageId = Gfx::recolour(bridgeObj->image, company->mainColours.primary);
                    auto x = self.x + self.widgets[widx::bridge].left + 2;
                    auto y = self.y + self.widgets[widx::bridge].top + 1;

                    drawingCtx.drawImage(x, y, imageId);
                }
            }
        }

        if (self.widgets[widx::construct].hidden)
        {
            return;
        }

        if (cState.trackType & (1 << 7))
        {
            auto road = getRoadPieceId(cState.lastSelectedTrackPiece, cState.lastSelectedTrackGradient, cState.constructionRotation);

            cState.previewMods = cState.lastSelectedMods;

            if (!road)
            {
                return;
            }

            cState.previewTrackType = cState.trackType & ~(1 << 7);
            cState.previewRotation = road->rotation;
            cState.lastSelectedTrackPieceId = road->id;
            cState.previewTrackPieceId = cState.lastSelectedTrackPieceId & 0x1F;

            auto x = self.x + self.widgets[widx::construct].left + 1;
            auto y = self.y + self.widgets[widx::construct].top + 1;
            auto width = self.widgets[widx::construct].width();
            auto height = self.widgets[widx::construct].height();

            const auto& rt = drawingCtx.currentRenderTarget();
            auto clipped = Gfx::clipRenderTarget(rt, Ui::Rect(x, y, width, height));
            if (clipped)
            {
                const auto& roadPiece = World::TrackData::getRoadPiece(cState.lastSelectedTrackPieceId);
                const auto& lastRoadPart = roadPiece.back();

                Pos3 pos3D = { lastRoadPart.x, lastRoadPart.y, lastRoadPart.z };