public Bitmap(int width, int height, PixelFormat format)
{
IRecieveBlenderByte byteBlender;
int bpp;
switch (format)
{
case PixelFormat.Format32bppArgb:
bpp = 32;
byteBlender = new BlenderBGRA();
break;
case PixelFormat.Format32bppRgb:
bpp = 32;
byteBlender = new BlenderBGR();
break;
case PixelFormat.Format24bppRgb:
bpp = 24;
byteBlender = new BlenderBGR();
break;
default:
throw new NotImplementedException(String.Format("UG.Bitmap unsupported format {0}", format));
}
this.buffer = new ImageBuffer(width, height, bpp, byteBlender);
}
/// <summary>
/// Download an image from the web into the specified ImageBuffer
/// </summary>
/// <param name="uri"></param>
public void DownloadToImageAsync(ImageBuffer imageToLoadInto, string uriToLoad, bool scaleToImageX, IRecieveBlenderByte scalingBlender = null)
{
if (scalingBlender == null)
{
scalingBlender = new BlenderBGRA();
}
WebClient client = new WebClient();
client.DownloadDataCompleted += (object sender, DownloadDataCompletedEventArgs e) =>
{
try // if we get a bad result we can get a target invocation exception. In that case just don't show anything
{
// scale the loaded image to the size of the target image
byte[] raw = e.Result;
Stream stream = new MemoryStream(raw);
ImageBuffer unScaledImage = new ImageBuffer(10, 10);
if (scaleToImageX)
{
StaticData.Instance.LoadImageData(stream, unScaledImage);
// If the source image (the one we downloaded) is more than twice as big as our dest image.
while (unScaledImage.Width > imageToLoadInto.Width * 2)
{
// The image sampler we use is a 2x2 filter so we need to scale by a max of 1/2 if we want to get good results.
// So we scale as many times as we need to to get the Image to be the right size.
// If this were going to be a non-uniform scale we could do the x and y separately to get better results.
ImageBuffer halfImage = new ImageBuffer(unScaledImage.Width / 2, unScaledImage.Height / 2, 32, scalingBlender);
halfImage.NewGraphics2D().Render(unScaledImage, 0, 0, 0, halfImage.Width / (double)unScaledImage.Width, halfImage.Height / (double)unScaledImage.Height);
unScaledImage = halfImage;
}
double finalScale = imageToLoadInto.Width / (double)unScaledImage.Width;
imageToLoadInto.Allocate(imageToLoadInto.Width, (int)(unScaledImage.Height * finalScale), imageToLoadInto.Width * (imageToLoadInto.BitDepth / 8), imageToLoadInto.BitDepth);
imageToLoadInto.NewGraphics2D().Render(unScaledImage, 0, 0, 0, finalScale, finalScale);
}
else
{
StaticData.Instance.LoadImageData(stream, imageToLoadInto);
}
imageToLoadInto.MarkImageChanged();
}
catch
{
}
};
try
{
client.DownloadDataAsync(new Uri(uriToLoad));
}
catch
{
}
}
public override void OnDraw(Graphics2D graphics2D)
{
ImageBuffer widgetsSubImage = ImageBuffer.NewSubImageReference(graphics2D.DestImage, graphics2D.GetClippingRect());
GammaLookUpTable gamma = new GammaLookUpTable(gammaSlider.Value);
IRecieveBlenderByte NormalBlender = new BlenderBGRA();
IRecieveBlenderByte GammaBlender = new BlenderGammaBGRA(gamma);
ImageBuffer rasterGamma = new ImageBuffer();
rasterGamma.Attach(widgetsSubImage, GammaBlender);
ImageClippingProxy clippingProxyNormal = new ImageClippingProxy(widgetsSubImage);
ImageClippingProxy clippingProxyGamma = new ImageClippingProxy(rasterGamma);
clippingProxyNormal.clear(new ColorF(1, 1, 1));
ScanlineRasterizer rasterizer = new ScanlineRasterizer();
scanline_unpacked_8 sl = new scanline_unpacked_8();
int size_mul = (int)pixelSizeSlider.Value;
renderer_enlarged ren_en = new renderer_enlarged(size_mul);
rasterizer.reset();
rasterizer.move_to_d(m_x[0] / size_mul, m_y[0] / size_mul);
rasterizer.line_to_d(m_x[1] / size_mul, m_y[1] / size_mul);
rasterizer.line_to_d(m_x[2] / size_mul, m_y[2] / size_mul);
ren_en.RenderSolid(clippingProxyGamma, rasterizer, sl, Color.Black);
ScanlineRenderer scanlineRenderer = new ScanlineRenderer();
scanlineRenderer.RenderSolid(clippingProxyGamma, rasterizer, sl, Color.Black);
rasterizer.gamma(new gamma_none());
VertexStorage ps = new VertexStorage();
Stroke pg = new Stroke(ps);
pg.Width = 2;
ps.remove_all();
ps.MoveTo(m_x[0], m_y[0]);
ps.LineTo(m_x[1], m_y[1]);
ps.LineTo(m_x[2], m_y[2]);
ps.LineTo(m_x[0], m_y[0]);
rasterizer.add_path(pg);
scanlineRenderer.RenderSolid(clippingProxyNormal, rasterizer, sl, new Color(0, 150, 160, 200));
base.OnDraw(graphics2D);
}
private static void LoadImageInto(ImageBuffer imageToLoadInto, bool scaleToImageX, IRecieveBlenderByte scalingBlender, Stream stream)
{
if (scalingBlender == null)
{
scalingBlender = new BlenderBGRA();
}
ImageBuffer unScaledImage = new ImageBuffer(10, 10);
if (scaleToImageX)
{
lock (locker)
{
// scale the loaded image to the size of the target image
StaticData.Instance.LoadImageData(stream, unScaledImage);
}
// If the source image (the one we downloaded) is more than twice as big as our dest image.
while (unScaledImage.Width > imageToLoadInto.Width * 2)
{
// The image sampler we use is a 2x2 filter so we need to scale by a max of 1/2 if we want to get good results.
// So we scale as many times as we need to get the Image to be the right size.
// If this were going to be a non-uniform scale we could do the x and y separately to get better results.
ImageBuffer halfImage = new ImageBuffer(unScaledImage.Width / 2, unScaledImage.Height / 2, 32, scalingBlender);
halfImage.NewGraphics2D().Render(unScaledImage, 0, 0, 0, halfImage.Width / (double)unScaledImage.Width, halfImage.Height / (double)unScaledImage.Height);
unScaledImage = halfImage;
}
double finalScale = imageToLoadInto.Width / (double)unScaledImage.Width;
imageToLoadInto.Allocate(imageToLoadInto.Width, (int)(unScaledImage.Height * finalScale), imageToLoadInto.Width * (imageToLoadInto.BitDepth / 8), imageToLoadInto.BitDepth);
imageToLoadInto.NewGraphics2D().Render(unScaledImage, 0, 0, 0, finalScale, finalScale);
}
else
{
StaticData.Instance.LoadImageData(stream, imageToLoadInto);
}
imageToLoadInto.MarkImageChanged();
}
public override void OnDraw(Graphics2D graphics2D)
{
ImageBuffer widgetsSubImage = ImageBuffer.NewSubImageReference(graphics2D.DestImage, graphics2D.GetClippingRect());
IImageByte backBuffer = widgetsSubImage;
GammaLookUpTable gamma = new GammaLookUpTable(m_gamma.Value);
IRecieveBlenderByte NormalBlender = new BlenderBGRA();
IRecieveBlenderByte GammaBlender = new BlenderGammaBGRA(gamma);
ImageBuffer rasterNormal = new ImageBuffer();
rasterNormal.Attach(backBuffer, NormalBlender);
ImageBuffer rasterGamma = new ImageBuffer();
rasterGamma.Attach(backBuffer, GammaBlender);
ImageClippingProxy clippingProxyNormal = new ImageClippingProxy(rasterNormal);
ImageClippingProxy clippingProxyGamma = new ImageClippingProxy(rasterGamma);
clippingProxyNormal.clear(m_white_on_black.Checked ? new ColorF(0, 0, 0) : new ColorF(1, 1, 1));
ScanlineRasterizer ras = new ScanlineRasterizer();
ScanlineCachePacked8 sl = new ScanlineCachePacked8();
VertexSource.Ellipse e = new VertexSource.Ellipse();
// TODO: If you drag the control circles below the bottom of the window we get an exception. This does not happen in AGG.
// It needs to be debugged. Turning on clipping fixes it. But standard agg works without clipping. Could be a bigger problem than this.
//ras.clip_box(0, 0, width(), height());
// Render two "control" circles
e.init(m_x[0], m_y[0], 3, 3, 16);
ras.add_path(e);
ScanlineRenderer scanlineRenderer = new ScanlineRenderer();
scanlineRenderer.RenderSolid(clippingProxyNormal, ras, sl, new Color(127, 127, 127));
e.init(m_x[1], m_y[1], 3, 3, 16);
ras.add_path(e);
scanlineRenderer.RenderSolid(clippingProxyNormal, ras, sl, new Color(127, 127, 127));
double d = m_offset.Value;
// Creating a rounded rectangle
VertexSource.RoundedRect r = new VertexSource.RoundedRect(m_x[0] + d, m_y[0] + d, m_x[1] + d, m_y[1] + d, m_radius.Value);
r.normalize_radius();
// Drawing as an outline
if (!m_DrawAsOutlineCheckBox.Checked)
{
Stroke p = new Stroke(r);
p.width(1.0);
ras.add_path(p);
}
else
{
ras.add_path(r);
}
scanlineRenderer.RenderSolid(clippingProxyGamma, ras, sl, m_white_on_black.Checked ? new Color(255, 255, 255) : new Color(0, 0, 0));
base.OnDraw(graphics2D);
}
public override void OnDraw(Graphics2D graphics2D)
{
GammaLookUpTable gamma = new GammaLookUpTable(m_gamma.Value);
IRecieveBlenderByte NormalBlender = new BlenderBGRA();
IRecieveBlenderByte GammaBlender = new BlenderGammaBGRA(gamma);
ImageBuffer rasterNormal = new ImageBuffer(NewGraphics2D().DestImage, NormalBlender);
ImageBuffer rasterGamma = new ImageBuffer(NewGraphics2D().DestImage, GammaBlender);
ImageClippingProxy clippingProxyNormal = new ImageClippingProxy(rasterNormal);
ImageClippingProxy clippingProxyGamma = new ImageClippingProxy(rasterGamma);
clippingProxyNormal.clear(new ColorF(0, 0, 0));
ScanlineRasterizer ras = new ScanlineRasterizer();
ScanlineCachePacked8 sl = new ScanlineCachePacked8();
VertexSource.Ellipse e = new VertexSource.Ellipse();
// TODO: If you drag the control circles below the bottom of the window we get an exception. This does not happen in AGG.
// It needs to be debugged. Turning on clipping fixes it. But standard agg works without clipping. Could be a bigger problem than this.
//ras.clip_box(0, 0, width(), height());
// Render two "control" circles
e.init(m_x[0], m_y[0], 3, 3, 16);
ras.add_path(e);
ScanlineRenderer scanlineRenderer = new ScanlineRenderer();
scanlineRenderer.RenderSolid(clippingProxyNormal, ras, sl, new Color(127, 127, 127));
e.init(m_x[1], m_y[1], 3, 3, 16);
ras.add_path(e);
scanlineRenderer.RenderSolid(clippingProxyNormal, ras, sl, new Color(127, 127, 127));
// Creating a rounded rectangle
VertexSource.RoundedRect r = new VertexSource.RoundedRect(m_x[0], m_y[0], m_x[1], m_y[1], 10);
r.normalize_radius();
// Drawing as an outline
Stroke p = new Stroke(r);
p.width(1.0);
ras.add_path(p);
//Renderer.RenderSolid(clippingProxyGamma, ras, sl, new RGBA_Bytes(0, 0, 0));
scanlineRenderer.RenderSolid(clippingProxyGamma, ras, sl, new Color(255, 1, 1));
/*
* int i;
*
* // radial line test
* //-------------------------
* dashed_line<rasterizer_type,
* renderer_scanline_type,
* scanline_type> dash(ras, ren_sl, sl);
*
* double cx = width() / 2.0;
* double cy = height() / 2.0;
*
* ren_sl.color(agg::rgba(1.0, 1.0, 1.0, 0.2));
* for(i = 180; i > 0; i--)
* {
* double n = 2.0 * agg::pi * i / 180.0;
* dash.draw(cx + min(cx, cy) * sin(n), cy + min(cx, cy) * cos(n),
* cx, cy,
* 1.0, (i < 90) ? i : 0.0);
* }
*
* typedef agg::gradient_x gradient_func_type;
* typedef agg::span_interpolator_linear<> interpolator_type;
* typedef agg::span_allocator<color_type> span_allocator_type;
* typedef agg::pod_auto_array<color_type, 256> color_array_type;
* typedef agg::span_gradient<color_type,
* interpolator_type,
* gradient_func_type,
* color_array_type> span_gradient_type;
*
* typedef agg::renderer_scanline_aa<renderer_base_type,
* span_allocator_type,
* span_gradient_type> renderer_gradient_type;
*
* gradient_func_type gradient_func; // The gradient function
* agg::trans_affine gradient_mtx; // Affine transformer
* interpolator_type span_interpolator(gradient_mtx); // Span interpolator
* span_allocator_type span_allocator; // Span Allocator
* color_array_type gradient_colors; // The gradient colors
* span_gradient_type span_gradient(span_interpolator,
* gradient_func,
* gradient_colors,
* 0, 100);
*
* renderer_gradient_type ren_gradient(ren_base, span_allocator, span_gradient);
*
* dashed_line<rasterizer_type,
* renderer_gradient_type,
* scanline_type> dash_gradient(ras, ren_gradient, sl);
*
* double x1, y1, x2, y2;
*
* for(i = 1; i <= 20; i++)
* {
* ren_sl.color(agg::rgba(1,1,1));
*
* // integral point sizes 1..20
* //----------------
* agg::ellipse ell;
*
* ell.init(20 + i * (i + 1) + 0.5,
* 20.5,
* i / 2.0,
* i / 2.0,
* 8 + i);
* ras.reset();
* ras.add_path(ell);
* agg::render_scanlines(ras, sl, ren_sl);
*
* // fractional point sizes 0..2
* //----------------
* ell.init(18 + i * 4 + 0.5, 33 + 0.5,
* i/20.0, i/20.0,
* 8);
* ras.reset();
* ras.add_path(ell);
* agg::render_scanlines(ras, sl, ren_sl);
*
* // fractional point positioning
* //---------------
* ell.init(18 + i * 4 + (i-1) / 10.0 + 0.5,
* 27 + (i - 1) / 10.0 + 0.5,
* 0.5, 0.5, 8);
* ras.reset();
* ras.add_path(ell);
* agg::render_scanlines(ras, sl, ren_sl);
*
* // integral line widths 1..20
* //----------------
* fill_color_array(gradient_colors,
* agg::rgba(1,1,1),
* agg::rgba(i % 2, (i % 3) * 0.5, (i % 5) * 0.25));
*
* x1 = 20 + i* (i + 1);
* y1 = 40.5;
* x2 = 20 + i * (i + 1) + (i - 1) * 4;
* y2 = 100.5;
* calc_linear_gradient_transform(x1, y1, x2, y2, gradient_mtx);
* dash_gradient.draw(x1, y1, x2, y2, i, 0);
*
* fill_color_array(gradient_colors,
* agg::rgba(1,0,0),
* agg::rgba(0,0,1));
*
* // fractional line lengths H (red/blue)
* //----------------
* x1 = 17.5 + i * 4;
* y1 = 107;
* x2 = 17.5 + i * 4 + i/6.66666667;
* y2 = 107;
* calc_linear_gradient_transform(x1, y1, x2, y2, gradient_mtx);
* dash_gradient.draw(x1, y1, x2, y2, 1.0, 0);
*
* // fractional line lengths V (red/blue)
* //---------------
* x1 = 18 + i * 4;
* y1 = 112.5;
* x2 = 18 + i * 4;
* y2 = 112.5 + i / 6.66666667;
* calc_linear_gradient_transform(x1, y1, x2, y2, gradient_mtx);
* dash_gradient.draw(x1, y1, x2, y2, 1.0, 0);
*
* // fractional line positioning (red)
* //---------------
* fill_color_array(gradient_colors,
* agg::rgba(1,0,0),
* agg::rgba(1,1,1));
* x1 = 21.5;
* y1 = 120 + (i - 1) * 3.1;
* x2 = 52.5;
* y2 = 120 + (i - 1) * 3.1;
* calc_linear_gradient_transform(x1, y1, x2, y2, gradient_mtx);
* dash_gradient.draw(x1, y1, x2, y2, 1.0, 0);
*
* // fractional line width 2..0 (green)
* fill_color_array(gradient_colors,
* agg::rgba(0,1,0),
* agg::rgba(1,1,1));
* x1 = 52.5;
* y1 = 118 + i * 3;
* x2 = 83.5;
* y2 = 118 + i * 3;
* calc_linear_gradient_transform(x1, y1, x2, y2, gradient_mtx);
* dash_gradient.draw(x1, y1, x2, y2, 2.0 - (i - 1) / 10.0, 0);
*
* // stippled fractional width 2..0 (blue)
* fill_color_array(gradient_colors,
* agg::rgba(0,0,1),
* agg::rgba(1,1,1));
* x1 = 83.5;
* y1 = 119 + i * 3;
* x2 = 114.5;
* y2 = 119 + i * 3;
* calc_linear_gradient_transform(x1, y1, x2, y2, gradient_mtx);
* dash_gradient.draw(x1, y1, x2, y2, 2.0 - (i - 1) / 10.0, 3.0);
*
* ren_sl.color(agg::rgba(1,1,1));
* if(i <= 10)
* {
* // integral line width, horz aligned (mipmap test)
* //-------------------
* dash.draw(125.5, 119.5 + (i + 2) * (i / 2.0),
* 135.5, 119.5 + (i + 2) * (i / 2.0),
* i, 0.0);
* }
*
* // fractional line width 0..2, 1 px H
* //-----------------
* dash.draw(17.5 + i * 4, 192, 18.5 + i * 4, 192, i / 10.0, 0);
*
* // fractional line positioning, 1 px H
* //-----------------
* dash.draw(17.5 + i * 4 + (i - 1) / 10.0, 186,
* 18.5 + i * 4 + (i - 1) / 10.0, 186,
* 1.0, 0);
* }
*
* // Triangles
* //---------------
* for (int i = 1; i <= 13; i++)
* {
* fill_color_array(gradient_colors,
* agg::rgba(1,1,1),
* agg::rgba(i % 2, (i % 3) * 0.5, (i % 5) * 0.25));
* calc_linear_gradient_transform(width() - 150,
* height() - 20 - i * (i + 1.5),
* width() - 20,
* height() - 20 - i * (i + 1),
* gradient_mtx);
* ras.reset();
* ras.move_to_d(width() - 150, height() - 20 - i * (i + 1.5));
* ras.line_to_d(width() - 20, height() - 20 - i * (i + 1));
* ras.line_to_d(width() - 20, height() - 20 - i * (i + 2));
* agg::render_scanlines(ras, sl, ren_gradient);
* }
*/
base.OnDraw(graphics2D);
}
public override void OnDraw(RendererBase renderer)
{
GammaLookUpTable gamma = new GammaLookUpTable(m_gamma.value());
IBlender NormalBlender = new BlenderBGRA();
IBlender GammaBlender = new BlenderGammaBGRA(gamma);
ImageBuffer rasterNormal = new ImageBuffer(NewRenderer().DestImage, NormalBlender);
ImageBuffer rasterGamma = new ImageBuffer(NewRenderer().DestImage, GammaBlender);
ImageClippingProxy clippingProxyNormal = new ImageClippingProxy(rasterNormal);
ImageClippingProxy clippingProxyGamma = new ImageClippingProxy(rasterGamma);
clippingProxyNormal.clear(new RGBA_Doubles(0,0,0));
rasterizer_scanline_aa ras = new rasterizer_scanline_aa();
scanline_packed_8 sl = new scanline_packed_8();
VertexSource.Ellipse e = new VertexSource.Ellipse();
// TODO: If you drag the control circles below the bottom of the window we get an exception. This does not happen in AGG.
// It needs to be debugged. Turning on clipping fixes it. But standard agg works without clipping. Could be a bigger problem than this.
//ras.clip_box(0, 0, width(), height());
// Render two "control" circles
e.init(m_x[0], m_y[0], 3, 3, 16);
ras.add_path(e);
Renderer.RenderSolid(clippingProxyNormal, ras, sl, new RGBA_Bytes(127, 127, 127));
e.init(m_x[1], m_y[1], 3, 3, 16);
ras.add_path(e);
Renderer.RenderSolid(clippingProxyNormal, ras, sl, new RGBA_Bytes(127, 127, 127));
// Creating a rounded rectangle
VertexSource.RoundedRect r = new VertexSource.RoundedRect(m_x[0], m_y[0], m_x[1], m_y[1], 10);
r.normalize_radius();
// Drawing as an outline
conv_stroke p = new conv_stroke(r);
p.width(1.0);
ras.add_path(p);
//Renderer.RenderSolid(clippingProxyGamma, ras, sl, new RGBA_Bytes(0, 0, 0));
Renderer.RenderSolid(clippingProxyGamma, ras, sl, new RGBA_Bytes(255, 1, 1));
/*
int i;
// radial line test
//-------------------------
dashed_line<rasterizer_type,
renderer_scanline_type,
scanline_type> dash(ras, ren_sl, sl);
double cx = width() / 2.0;
double cy = height() / 2.0;
ren_sl.color(agg::rgba(1.0, 1.0, 1.0, 0.2));
for(i = 180; i > 0; i--)
{
double n = 2.0 * agg::pi * i / 180.0;
dash.draw(cx + min(cx, cy) * sin(n), cy + min(cx, cy) * cos(n),
cx, cy,
1.0, (i < 90) ? i : 0.0);
}
typedef agg::gradient_x gradient_func_type;
typedef agg::span_interpolator_linear<> interpolator_type;
typedef agg::span_allocator<color_type> span_allocator_type;
typedef agg::pod_auto_array<color_type, 256> color_array_type;
typedef agg::span_gradient<color_type,
interpolator_type,
gradient_func_type,
color_array_type> span_gradient_type;
typedef agg::renderer_scanline_aa<renderer_base_type,
span_allocator_type,
span_gradient_type> renderer_gradient_type;
gradient_func_type gradient_func; // The gradient function
agg::trans_affine gradient_mtx; // Affine transformer
interpolator_type span_interpolator(gradient_mtx); // Span interpolator
span_allocator_type span_allocator; // Span Allocator
color_array_type gradient_colors; // The gradient colors
span_gradient_type span_gradient(span_interpolator,
gradient_func,
gradient_colors,
0, 100);
renderer_gradient_type ren_gradient(ren_base, span_allocator, span_gradient);
dashed_line<rasterizer_type,
renderer_gradient_type,
scanline_type> dash_gradient(ras, ren_gradient, sl);
double x1, y1, x2, y2;
for(i = 1; i <= 20; i++)
{
ren_sl.color(agg::rgba(1,1,1));
// integral point sizes 1..20
//----------------
agg::ellipse ell;
ell.init(20 + i * (i + 1) + 0.5,
20.5,
i / 2.0,
i / 2.0,
8 + i);
ras.reset();
ras.add_path(ell);
agg::render_scanlines(ras, sl, ren_sl);
// fractional point sizes 0..2
//----------------
ell.init(18 + i * 4 + 0.5, 33 + 0.5,
i/20.0, i/20.0,
8);
ras.reset();
ras.add_path(ell);
agg::render_scanlines(ras, sl, ren_sl);
// fractional point positioning
//---------------
ell.init(18 + i * 4 + (i-1) / 10.0 + 0.5,
27 + (i - 1) / 10.0 + 0.5,
0.5, 0.5, 8);
ras.reset();
ras.add_path(ell);
agg::render_scanlines(ras, sl, ren_sl);
// integral line widths 1..20
//----------------
fill_color_array(gradient_colors,
agg::rgba(1,1,1),
agg::rgba(i % 2, (i % 3) * 0.5, (i % 5) * 0.25));
x1 = 20 + i* (i + 1);
y1 = 40.5;
x2 = 20 + i * (i + 1) + (i - 1) * 4;
y2 = 100.5;
calc_linear_gradient_transform(x1, y1, x2, y2, gradient_mtx);
dash_gradient.draw(x1, y1, x2, y2, i, 0);
fill_color_array(gradient_colors,
agg::rgba(1,0,0),
agg::rgba(0,0,1));
// fractional line lengths H (red/blue)
//----------------
x1 = 17.5 + i * 4;
y1 = 107;
x2 = 17.5 + i * 4 + i/6.66666667;
y2 = 107;
calc_linear_gradient_transform(x1, y1, x2, y2, gradient_mtx);
dash_gradient.draw(x1, y1, x2, y2, 1.0, 0);
// fractional line lengths V (red/blue)
//---------------
x1 = 18 + i * 4;
y1 = 112.5;
x2 = 18 + i * 4;
y2 = 112.5 + i / 6.66666667;
calc_linear_gradient_transform(x1, y1, x2, y2, gradient_mtx);
dash_gradient.draw(x1, y1, x2, y2, 1.0, 0);
// fractional line positioning (red)
//---------------
fill_color_array(gradient_colors,
agg::rgba(1,0,0),
agg::rgba(1,1,1));
x1 = 21.5;
y1 = 120 + (i - 1) * 3.1;
x2 = 52.5;
y2 = 120 + (i - 1) * 3.1;
calc_linear_gradient_transform(x1, y1, x2, y2, gradient_mtx);
dash_gradient.draw(x1, y1, x2, y2, 1.0, 0);
// fractional line width 2..0 (green)
fill_color_array(gradient_colors,
agg::rgba(0,1,0),
agg::rgba(1,1,1));
x1 = 52.5;
y1 = 118 + i * 3;
x2 = 83.5;
y2 = 118 + i * 3;
calc_linear_gradient_transform(x1, y1, x2, y2, gradient_mtx);
dash_gradient.draw(x1, y1, x2, y2, 2.0 - (i - 1) / 10.0, 0);
// stippled fractional width 2..0 (blue)
fill_color_array(gradient_colors,
agg::rgba(0,0,1),
agg::rgba(1,1,1));
x1 = 83.5;
y1 = 119 + i * 3;
x2 = 114.5;
y2 = 119 + i * 3;
calc_linear_gradient_transform(x1, y1, x2, y2, gradient_mtx);
dash_gradient.draw(x1, y1, x2, y2, 2.0 - (i - 1) / 10.0, 3.0);
ren_sl.color(agg::rgba(1,1,1));
if(i <= 10)
{
// integral line width, horz aligned (mipmap test)
//-------------------
dash.draw(125.5, 119.5 + (i + 2) * (i / 2.0),
135.5, 119.5 + (i + 2) * (i / 2.0),
i, 0.0);
}
// fractional line width 0..2, 1 px H
//-----------------
dash.draw(17.5 + i * 4, 192, 18.5 + i * 4, 192, i / 10.0, 0);
// fractional line positioning, 1 px H
//-----------------
dash.draw(17.5 + i * 4 + (i - 1) / 10.0, 186,
18.5 + i * 4 + (i - 1) / 10.0, 186,
1.0, 0);
}
// Triangles
//---------------
for (int i = 1; i <= 13; i++)
{
fill_color_array(gradient_colors,
agg::rgba(1,1,1),
agg::rgba(i % 2, (i % 3) * 0.5, (i % 5) * 0.25));
calc_linear_gradient_transform(width() - 150,
height() - 20 - i * (i + 1.5),
width() - 20,
height() - 20 - i * (i + 1),
gradient_mtx);
ras.reset();
ras.move_to_d(width() - 150, height() - 20 - i * (i + 1.5));
ras.line_to_d(width() - 20, height() - 20 - i * (i + 1));
ras.line_to_d(width() - 20, height() - 20 - i * (i + 2));
agg::render_scanlines(ras, sl, ren_gradient);
}
*/
base.OnDraw(renderer);
}
public override void OnDraw()
{
GammaLut gamma = new GammaLut(m_gamma.value().ToDouble());
IBlender NormalBlender = new BlenderBGRA();
IBlender GammaBlender = new BlenderGammaBGRA(gamma);
FormatRGBA pixf = new FormatRGBA(rbuf_window(), NormalBlender);
FormatClippingProxy clippingProxy = new FormatClippingProxy(pixf);
clippingProxy.Clear(m_white_on_black.status() ? new RGBA_Doubles(0, 0, 0) : new RGBA_Doubles(1, 1, 1));
RasterizerScanlineAA <T> ras = new RasterizerScanlineAA <T>();
ScanlinePacked8 sl = new ScanlinePacked8();
Ellipse <T> e = new Ellipse <T>();
// TODO: If you drag the control circles below the bottom of the window we get an exception. This does not happen in AGG.
// It needs to be debugged. Turning on clipping fixes it. But standard agg works without clipping. Could be a bigger problem than this.
//ras.clip_box(0, 0, width(), height());
// Render two "control" circles
e.Init(m_x[0], m_y[0], M.New <T>(3), M.New <T>(3), 16);
ras.AddPath(e);
Renderer <T> .RenderSolid(clippingProxy, ras, sl, new RGBA_Bytes(127, 127, 127));
e.Init(m_x[1], m_y[1], M.New <T>(3), M.New <T>(3), 16);
ras.AddPath(e);
Renderer <T> .RenderSolid(clippingProxy, ras, sl, new RGBA_Bytes(127, 127, 127));
T d = m_offset.value();
// Creating a rounded rectangle
RoundedRect <T> r = new RoundedRect <T>(m_x[0].Add(d), m_y[0].Add(d), m_x[1].Add(d), m_y[1].Add(d), m_radius.value());
r.NormalizeRadius();
// Drawing as an outline
if (!m_DrawAsOutlineCheckBox.status())
{
ConvStroke <T> p = new ConvStroke <T>(r);
p.Width = M.One <T>();
ras.AddPath(p);
}
else
{
ras.AddPath(r);
}
pixf.Blender = GammaBlender;
Renderer <T> .RenderSolid(clippingProxy, ras, sl, m_white_on_black.status()?new RGBA_Bytes(1, 1, 1) : new RGBA_Bytes(0, 0, 0));
// this was in the original demo, but it does nothing because we changed the blender not the gamma function.
//ras.gamma(new gamma_none());
// so let's change the blender instead
pixf.Blender = NormalBlender;
// Render the controls
//m_radius.Render(ras, sl, clippingProxy);
//m_gamma.Render(ras, sl, clippingProxy);
//m_offset.Render(ras, sl, clippingProxy);
//m_white_on_black.Render(ras, sl, clippingProxy);
//m_DrawAsOutlineCheckBox.Render(ras, sl, clippingProxy);
base.OnDraw();
}
