public override void OnDraw()
{
int width = (int)rbuf_window().Width;
int height = (int)rbuf_window().Height;
if (m_num_cb.value().NotEqual(m_slider_value))
{
generate_alpha_mask(width, height);
m_slider_value = m_num_cb.value();
}
g_rasterizer.SetVectorClipBox(0, 0, width, height);
IPixelFormat pf = new FormatRGB(rbuf_window(), new BlenderBGR());
unsafe
{
fixed(byte *pAlphaBuffer = m_alpha_buf)
{
m_alpha_mask_rbuf.attach(pAlphaBuffer, (uint)width, (uint)height, width, 1);
AGG.PixelFormat.AlphaMaskAdaptor pixFormatAlphaMaskAdaptor = new AGG.PixelFormat.AlphaMaskAdaptor(pf, m_alpha_mask);
FormatClippingProxy alphaMaskClippingProxy = new FormatClippingProxy(pixFormatAlphaMaskAdaptor);
FormatClippingProxy clippingProxy = new FormatClippingProxy(pf);
IAffineTransformMatrix <T> mtx = MatrixFactory <T> .NewIdentity(VectorDimension.Two);
mtx.Translate(MatrixFactory <T> .CreateVector2D(g_base_dx.Negative(), g_base_dy.Negative()));
mtx.Scale(g_scale);
mtx.RotateAlong(MatrixFactory <T> .CreateVector2D(0, 0), g_angle.Add(Math.PI).ToDouble());
mtx.Shear(MatrixFactory <T> .CreateVector2D(g_skew_x.Divide(1000.0), g_skew_y.Divide(1000.0)));
mtx.Translate(MatrixFactory <T> .CreateVector2D(width / 2, height / 2));
clippingProxy.Clear(new RGBA_Doubles(1, 1, 1));
// draw a background to show how the mask is working better
int RectWidth = 30;
for (int i = 0; i < 40; i++)
{
for (int j = 0; j < 40; j++)
{
if ((i + j) % 2 != 0)
{
VertexSource.RoundedRect <T> rect = new VertexSource.RoundedRect <T>(i * RectWidth, j * RectWidth, (i + 1) * RectWidth, (j + 1) * RectWidth, 0);
rect.NormalizeRadius();
// Drawing as an outline
g_rasterizer.AddPath(rect);
Renderer <T> .RenderSolid(clippingProxy, g_rasterizer, g_scanline, new RGBA_Bytes(.9, .9, .9));
}
}
}
//int x, y;
// Render the lion
ConvTransform <T> trans = new ConvTransform <T>(g_path, mtx);
Renderer <T> .RenderSolidAllPaths(alphaMaskClippingProxy, g_rasterizer, g_scanline, trans, g_colors, g_path_idx, g_npaths);
/*
* // Render random Bresenham lines and markers
* agg::renderer_markers<amask_ren_type> m(r);
* for(i = 0; i < 50; i++)
* {
* m.line_color(agg::rgba8(randGenerator.Next() & 0x7F,
* randGenerator.Next() & 0x7F,
* randGenerator.Next() & 0x7F,
* (randGenerator.Next() & 0x7F) + 0x7F));
* m.fill_color(agg::rgba8(randGenerator.Next() & 0x7F,
* randGenerator.Next() & 0x7F,
* randGenerator.Next() & 0x7F,
* (randGenerator.Next() & 0x7F) + 0x7F));
*
* m.line(m.coord(randGenerator.Next() % width), m.coord(randGenerator.Next() % height),
* m.coord(randGenerator.Next() % width), m.coord(randGenerator.Next() % height));
*
* m.marker(randGenerator.Next() % width, randGenerator.Next() % height, randGenerator.Next() % 10 + 5,
* agg::marker_e(randGenerator.Next() % agg::end_of_markers));
* }
*
*
* // Render random anti-aliased lines
* double w = 5.0;
* agg::line_profile_aa profile;
* profile.width(w);
*
* typedef agg::renderer_outline_aa<amask_ren_type> renderer_type;
* renderer_type ren(r, profile);
*
* typedef agg::rasterizer_outline_aa<renderer_type> rasterizer_type;
* rasterizer_type ras(ren);
* ras.round_cap(true);
*
* for(i = 0; i < 50; i++)
* {
* ren.Color = agg::rgba8(randGenerator.Next() & 0x7F,
* randGenerator.Next() & 0x7F,
* randGenerator.Next() & 0x7F,
* //255));
* (randGenerator.Next() & 0x7F) + 0x7F);
* ras.move_to_d(randGenerator.Next() % width, randGenerator.Next() % height);
* ras.line_to_d(randGenerator.Next() % width, randGenerator.Next() % height);
* ras.render(false);
* }
*
*
* // Render random circles with gradient
* typedef agg::gradient_linear_color<color_type> grad_color;
* typedef agg::gradient_circle grad_func;
* typedef agg::span_interpolator_linear<> interpolator_type;
* typedef agg::span_gradient<color_type,
* interpolator_type,
* grad_func,
* grad_color> span_grad_type;
*
* agg::trans_affine grm;
* grad_func grf;
* grad_color grc(agg::rgba8(0,0,0), agg::rgba8(0,0,0));
* agg::ellipse ell;
* agg::span_allocator<color_type> sa;
* interpolator_type inter(grm);
* span_grad_type sg(inter, grf, grc, 0, 10);
* agg::renderer_scanline_aa<amask_ren_type,
* agg::span_allocator<color_type>,
* span_grad_type> rg(r, sa, sg);
* for(i = 0; i < 50; i++)
* {
* x = randGenerator.Next() % width;
* y = randGenerator.Next() % height;
* double r = randGenerator.Next() % 10 + 5;
* grm.reset();
* grm *= agg::trans_affine_scaling(r / 10.0);
* grm *= agg::trans_affine_translation(x, y);
* grm.invert();
* grc.colors(agg::rgba8(255, 255, 255, 0),
* agg::rgba8(randGenerator.Next() & 0x7F,
* randGenerator.Next() & 0x7F,
* randGenerator.Next() & 0x7F,
* 255));
* sg.color_function(grc);
* ell.init(x, y, r, r, 32);
* g_rasterizer.add_path(ell);
* agg::render_scanlines(g_rasterizer, g_scanline, rg);
* }
*/
//m_num_cb.Render(g_rasterizer, g_scanline, clippingProxy);
}
m_alpha_mask_rbuf.dettachBuffer();
}
base.OnDraw();
}
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();
}
