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);
}
