private void draw_curve(line_image_pattern patt, rasterizer_outline_aa ras, ImageLineRenderer ren,
pattern_src_brightness_to_alpha_RGBA_Bytes src, IVertexSource vs)
{
patt.create(src);
ren.scale_x(m_scale_x.Value);
ren.start_x(m_start_x.Value);
ras.add_path(vs);
}
public override void OnDraw(Graphics2D graphics2D)
{
ImageClippingProxy ren_base = new ImageClippingProxy(graphics2D.DestImage);
ren_base.clear(new RGBA_Floats(1.0, 1.0, .95));
ScanlineRasterizer ras = new ScanlineRasterizer();
ScanlineCachePacked8 sl = new ScanlineCachePacked8();
// Pattern source. Must have an interface:
// width() const
// height() const
// pixel(int x, int y) const
// Any agg::renderer_base<> or derived
// is good for the use as a source.
//-----------------------------------
pattern_src_brightness_to_alpha_RGBA_Bytes p1 = new pattern_src_brightness_to_alpha_RGBA_Bytes(rbuf_img0);
pattern_src_brightness_to_alpha_RGBA_Bytes p2 = new pattern_src_brightness_to_alpha_RGBA_Bytes(rbuf_img1);
pattern_src_brightness_to_alpha_RGBA_Bytes p3 = new pattern_src_brightness_to_alpha_RGBA_Bytes(rbuf_img2);
pattern_src_brightness_to_alpha_RGBA_Bytes p4 = new pattern_src_brightness_to_alpha_RGBA_Bytes(rbuf_img3);
pattern_src_brightness_to_alpha_RGBA_Bytes p5 = new pattern_src_brightness_to_alpha_RGBA_Bytes(rbuf_img4);
pattern_src_brightness_to_alpha_RGBA_Bytes p6 = new pattern_src_brightness_to_alpha_RGBA_Bytes(rbuf_img5);
pattern_src_brightness_to_alpha_RGBA_Bytes p7 = new pattern_src_brightness_to_alpha_RGBA_Bytes(rbuf_img6);
pattern_src_brightness_to_alpha_RGBA_Bytes p8 = new pattern_src_brightness_to_alpha_RGBA_Bytes(rbuf_img7);
pattern_src_brightness_to_alpha_RGBA_Bytes p9 = new pattern_src_brightness_to_alpha_RGBA_Bytes(rbuf_img8);
pattern_filter_bilinear_RGBA_Bytes fltr = new pattern_filter_bilinear_RGBA_Bytes(); // Filtering functor
// agg::line_image_pattern is the main container for the patterns. It creates
// a copy of the patterns extended according to the needs of the filter.
// agg::line_image_pattern can operate with arbitrary image width, but if the
// width of the pattern is power of 2, it's better to use the modified
// version agg::line_image_pattern_pow2 because it works about 15-25 percent
// faster than agg::line_image_pattern (because of using simple masking instead
// of expensive '%' operation).
//-- Create with specifying the source
//-- Create uninitialized and set the source
line_image_pattern patt = new line_image_pattern(new pattern_filter_bilinear_RGBA_Bytes());
ImageLineRenderer ren_img = new ImageLineRenderer(ren_base, patt);
rasterizer_outline_aa ras_img = new rasterizer_outline_aa(ren_img);
draw_curve(patt, ras_img, ren_img, p1, m_curve1.curve());
/*
draw_curve(patt, ras_img, ren_img, p2, m_curve2.curve());
draw_curve(patt, ras_img, ren_img, p3, m_curve3.curve());
draw_curve(patt, ras_img, ren_img, p4, m_curve4.curve());
draw_curve(patt, ras_img, ren_img, p5, m_curve5.curve());
draw_curve(patt, ras_img, ren_img, p6, m_curve6.curve());
draw_curve(patt, ras_img, ren_img, p7, m_curve7.curve());
draw_curve(patt, ras_img, ren_img, p8, m_curve8.curve());
draw_curve(patt, ras_img, ren_img, p9, m_curve9.curve());
*/
base.OnDraw(graphics2D);
}
public override void OnDraw(Graphics2D graphics2D)
{
ImageBuffer widgetsSubImage = ImageBuffer.NewSubImageReference(graphics2D.DestImage, graphics2D.GetClippingRect());
int width = (int)widgetsSubImage.Width;
int height = (int)widgetsSubImage.Height;
ImageBuffer clippedSubImage = new ImageBuffer();
clippedSubImage.Attach(widgetsSubImage, new BlenderBGRA());
ImageClippingProxy imageClippingProxy = new ImageClippingProxy(clippedSubImage);
imageClippingProxy.clear(new RGBA_Floats(1, 1, 1));
Affine transform = Affine.NewIdentity();
transform *= Affine.NewTranslation(-lionShape.Center.x, -lionShape.Center.y);
transform *= Affine.NewScaling(lionScale, lionScale);
transform *= Affine.NewRotation(angle + Math.PI);
transform *= Affine.NewSkewing(skewX / 1000.0, skewY / 1000.0);
transform *= Affine.NewTranslation(width / 2, height / 2);
if (renderAsScanlineCheckBox.Checked)
{
rasterizer.SetVectorClipBox(0, 0, width, height);
Stroke stroke = new Stroke(lionShape.Path);
stroke.width(widthSlider.Value);
stroke.line_join(LineJoin.Round);
VertexSourceApplyTransform trans = new VertexSourceApplyTransform(stroke, transform);
ScanlineRenderer scanlineRenderer = new ScanlineRenderer();
scanlineRenderer.RenderSolidAllPaths(imageClippingProxy, rasterizer, scanlineCache, trans, lionShape.Colors, lionShape.PathIndex, lionShape.NumPaths);
}
else
{
double w = widthSlider.Value * transform.GetScale();
LineProfileAnitAlias lineProfile = new LineProfileAnitAlias(w, new gamma_none());
OutlineRenderer outlineRenderer = new OutlineRenderer(imageClippingProxy, lineProfile);
rasterizer_outline_aa rasterizer = new rasterizer_outline_aa(outlineRenderer);
rasterizer.line_join(renderAccurateJoinsCheckBox.Checked ?
rasterizer_outline_aa.outline_aa_join_e.outline_miter_accurate_join
: rasterizer_outline_aa.outline_aa_join_e.outline_round_join);
rasterizer.round_cap(true);
VertexSourceApplyTransform trans = new VertexSourceApplyTransform(lionShape.Path, transform);
rasterizer.RenderAllPaths(trans, lionShape.Colors, lionShape.PathIndex, lionShape.NumPaths);
}
base.OnDraw(graphics2D);
}