Пример #1
0
        public override void OnDraw()
        {
            RasterizerScanlineAA <T> ras = new RasterizerScanlineAA <T>();
            ScanlineUnpacked8        sl  = new ScanlineUnpacked8();

#if SourceDepth24
            FormatRGB pixf = new FormatRGB(rbuf_window(), new BlenderBGR());
#else
            FormatRGBA pixf = new FormatRGBA(rbuf_window(), new blender_bgra32());
#endif
            FormatClippingProxy clippingProxy = new FormatClippingProxy(pixf);
            clippingProxy.Clear(new RGBA_Doubles(0, 0, 0));

            m_profile.text_size(8.0);

            //m_profile.Render(ras, sl, clippingProxy);
            //m_spline_r.Render(ras, sl, clippingProxy);
            //m_spline_g.Render(ras, sl, clippingProxy);
            //m_spline_b.Render(ras, sl, clippingProxy);
            //m_spline_a.Render(ras, sl, clippingProxy);
            //m_GradTypeRBox.Render(ras, sl, clippingProxy);
            //m_GradWrapRBox.Render(ras, sl, clippingProxy);

            // draw a background to show how the alpha is working
            int RectWidth = 32;
            int xoffset   = 238;
            int yoffset   = 171;
            for (int i = 0; i < 7; i++)
            {
                for (int j = 0; j < 7; j++)
                {
                    if ((i + j) % 2 != 0)
                    {
                        VertexSource.RoundedRect <T> rect = new VertexSource.RoundedRect <T>(i * RectWidth + xoffset, j * RectWidth + yoffset,
                                                                                             (i + 1) * RectWidth + xoffset, (j + 1) * RectWidth + yoffset, 2);
                        rect.NormalizeRadius();

                        // Drawing as an outline
                        ras.AddPath(rect);
                        Renderer <T> .RenderSolid(clippingProxy, ras, sl, new RGBA_Bytes(.9, .9, .9));
                    }
                }
            }

            double ini_scale = 1.0;

            IAffineTransformMatrix <T> mtx1 = MatrixFactory <T> .NewIdentity(VectorDimension.Two);

            mtx1.Scale(MatrixFactory <T> .CreateVector2D(ini_scale, ini_scale));
            mtx1.Translate(MatrixFactory <T> .CreateVector2D(center_x, center_y));
            mtx1.Add(trans_affine_resizing());

            VertexSource.Ellipse <T> e1 = new AGG.VertexSource.Ellipse <T>();
            e1.Init(0.0, 0.0, 110.0, 110.0, 64);

            IAffineTransformMatrix <T> mtx_g1 = MatrixFactory <T> .NewIdentity(VectorDimension.Two);

            mtx_g1.Scale(MatrixFactory <T> .CreateVector2D(ini_scale, ini_scale));
            mtx_g1.Scale(MatrixFactory <T> .CreateVector2D(m_SaveData.m_scale, m_SaveData.m_scale));
            mtx_g1.Scale(MatrixFactory <T> .CreateVector2D(m_scale_x, m_scale_y));
            mtx_g1.RotateAlong(MatrixFactory <T> .CreateVector2D(0, 0), m_SaveData.m_angle.ToDouble());
            mtx_g1.Translate(MatrixFactory <T> .CreateVector2D(m_SaveData.m_center_x, m_SaveData.m_center_y));
            mtx_g1.Add(trans_affine_resizing());
            mtx_g1 = mtx_g1.Inverse;


            RGBA_Bytes[] color_profile = new RGBA_Bytes[256]; // color_type is defined in pixel_formats.h
            for (int i = 0; i < 256; i++)
            {
                color_profile[i] = new RGBA_Bytes(m_spline_r.spline()[i].ToInt(),
                                                  m_spline_g.spline()[i].ToInt(),
                                                  m_spline_b.spline()[i].ToInt(),
                                                  m_spline_a.spline()[i].ToInt());
            }

            ConvTransform <T> t1 = new ConvTransform <T>(e1, mtx1);

            IGradient innerGradient = null;
            switch (m_GradTypeRBox.cur_item())
            {
            case 0:
                innerGradient = new GradientRadial();
                break;

            case 1:
                innerGradient = new GradientDiamond();
                break;

            case 2:
                innerGradient = new GradientX();
                break;

            case 3:
                innerGradient = new GradientXY();
                break;

            case 4:
                innerGradient = new GradientSqrtXY();
                break;

            case 5:
                innerGradient = new GradientConic();
                break;
            }

            IGradient outerGradient = null;
            switch (m_GradWrapRBox.cur_item())
            {
            case 0:
                outerGradient = new GradientReflectAdaptor(innerGradient);
                break;

            case 1:
                outerGradient = new GradientRepeatAdaptor(innerGradient);
                break;

            case 2:
                outerGradient = new GradientClampAdaptor(innerGradient);
                break;
            }

            SpanAllocator              span_alloc = new SpanAllocator();
            ColorFunctionProfile       colors     = new ColorFunctionProfile(color_profile, m_profile.gamma());
            SpanInterpolatorLinear <T> inter      = new SpanInterpolatorLinear <T>(mtx_g1);
            SpanGradient <T>           span_gen   = new SpanGradient <T>(inter, outerGradient, colors, 0, 150);

            ras.AddPath(t1);
            Renderer <T> .GenerateAndRender(ras, sl, clippingProxy, span_alloc, span_gen);

            base.OnDraw();
        }