Method onDisplay

tests/Demo.cpp:104–162

protected:
    void onDisplay() override
    {
        const GraphicsContext& context(getGraphicsContext());
        const double scaleFactor = getWindow().getScaleFactor();
        const int iconSize = bgIcon.getWidth();

        Color(0.027f, 0.027f, 0.027f).setFor(context);
        Rectangle<uint>(0, 0, getSize()).draw(context);

        bgIcon.setY(curPage * iconSize + curPage * 3 * scaleFactor);

        Color(0.129f, 0.129f, 0.129f).setFor(context);
        bgIcon.draw(context);

        Color(0.184f, 0.184f, 0.184f).setFor(context);
        bgIcon.drawOutline(context);

        if (curHover != curPage && curHover != -1)
        {
            Rectangle<int> rHover(1 * scaleFactor, curHover * iconSize + curHover * 3 * scaleFactor,
                                  iconSize - 2 * scaleFactor, iconSize - 2 * scaleFactor);

            Color(0.071f, 0.071f, 0.071f).setFor(context);
            rHover.draw(context);

            Color(0.102f, 0.102f, 0.102f).setFor(context);
            rHover.drawOutline(context);
        }

        Color(0.184f, 0.184f, 0.184f).setFor(context);
        lineSep.draw(context);

        // reset color
        Color(1.0f, 1.0f, 1.0f, 1.0f).setFor(context, true);

        const int pad = iconSize/2 - DemoArtwork::ico1Width/2;

        img1.drawAt(context, pad, pad);
        img2.drawAt(context, pad, pad + 3 + iconSize);
        img3.drawAt(context, pad, pad + 6 + iconSize*2);
        img4.drawAt(context, pad, pad + 9 + iconSize*3);

       #ifdef DGL_OPENGL
        img5.drawAt(context, pad, pad + 12 + iconSize*4);

        // draw some text
        nvg.beginFrame(this);

        nvg.fontSize(23.0f * scaleFactor);
        nvg.textAlign(NanoVG::ALIGN_LEFT|NanoVG::ALIGN_TOP);
        //nvg.textLineHeight(20.0f);

        nvg.fillColor(220,220,220,220);
        nvg.textBox(10 * scaleFactor, 420 * scaleFactor, iconSize, "Haha,", nullptr);
        nvg.textBox(15 * scaleFactor, 440 * scaleFactor, iconSize, "Look!", nullptr);

        nvg.endFrame();
       #endif