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#include "../base/SRC_FIRST.hpp"
#include "circle.hpp"
#include "opengl/data_traits.hpp"
#include "agg_traits.hpp"
#include "../base/math.hpp"
namespace graphics
{
Circle::Info::Info(double radius,
Color const & color,
bool isOutlined,
double outlineWidth,
Color const & outlineColor)
: Resource::Info(Resource::ECircle),
m_radius(my::rounds(radius)),
m_color(color),
m_isOutlined(isOutlined),
m_outlineWidth(my::rounds(outlineWidth)),
m_outlineColor(outlineColor)
{
if (!m_isOutlined)
{
m_outlineWidth = 0;
m_outlineColor = graphics::Color(0, 0, 0, 0);
}
}
Circle::Info::Info()
: Resource::Info(Resource::ECircle),
m_radius(0),
m_color(0, 0, 0, 0),
m_isOutlined(false),
m_outlineWidth(0),
m_outlineColor()
{}
bool Circle::Info::lessThan(Resource::Info const * r) const
{
if (m_category != r->m_category)
return m_category < r->m_category;
Circle::Info const * ci = static_cast<Circle::Info const *>(r);
if (m_radius != ci->m_radius)
return m_radius < ci->m_radius;
if (m_color != ci->m_color)
return m_color < ci->m_color;
if (m_isOutlined != ci->m_isOutlined)
return m_isOutlined < ci->m_isOutlined;
if (m_outlineWidth != ci->m_outlineWidth)
return m_outlineWidth < ci->m_outlineWidth;
if (m_outlineColor != ci->m_outlineColor)
return m_outlineColor < ci->m_outlineColor;
return false;
}
Resource::Info const & Circle::Info::cacheKey() const
{
return *this;
}
m2::PointU const Circle::Info::resourceSize() const
{
unsigned r = m_isOutlined ? m_radius + m_outlineWidth : m_radius;
return m2::PointU(r * 2 + 4, r * 2 + 4);
}
Resource * Circle::Info::createResource(m2::RectU const & texRect,
uint8_t pipelineID) const
{
return new Circle(texRect,
pipelineID,
*this);
}
Circle::Circle(m2::RectU const & texRect,
int pipelineID,
Info const & info)
: Resource(ECircle, texRect, pipelineID),
m_info(info)
{}
void Circle::render(void * dst)
{
m2::RectU const & rect = m_texRect;
DATA_TRAITS::view_t v = gil::interleaved_view(
rect.SizeX(), rect.SizeY(),
(DATA_TRAITS::pixel_t*)dst,
sizeof(DATA_TRAITS::pixel_t) * rect.SizeX()
);
Circle::Info info = m_info;
agg::rgba8 aggColor(info.m_color.r,
info.m_color.g,
info.m_color.b,
info.m_color.a);
agg::rgba8 aggOutlineColor(info.m_outlineColor.r,
info.m_outlineColor.g,
info.m_outlineColor.b,
info.m_outlineColor.a);
info.m_color /= DATA_TRAITS::channelScaleFactor;
DATA_TRAITS::pixel_t gilColorTranslucent;
gil::get_color(gilColorTranslucent, gil::red_t()) = info.m_color.r;
gil::get_color(gilColorTranslucent, gil::green_t()) = info.m_color.g;
gil::get_color(gilColorTranslucent, gil::blue_t()) = info.m_color.b;
gil::get_color(gilColorTranslucent, gil::alpha_t()) = 0;
info.m_outlineColor /= DATA_TRAITS::channelScaleFactor;
DATA_TRAITS::pixel_t gilOutlineColorTranslucent;
gil::get_color(gilOutlineColorTranslucent, gil::red_t()) = info.m_outlineColor.r;
gil::get_color(gilOutlineColorTranslucent, gil::green_t()) = info.m_outlineColor.g;
gil::get_color(gilOutlineColorTranslucent, gil::blue_t()) = info.m_outlineColor.b;
gil::get_color(gilOutlineColorTranslucent, gil::alpha_t()) = 0;
DATA_TRAITS::pixel_t gilColor = gilColorTranslucent;
gil::get_color(gilColor, gil::alpha_t()) = info.m_color.a;
DATA_TRAITS::pixel_t gilOutlineColor = gilOutlineColorTranslucent;
gil::get_color(gilOutlineColor, gil::alpha_t()) = info.m_outlineColor.a;
/// draw circle
agg::rendering_buffer buf(
(unsigned char *)&v(0, 0),
rect.SizeX(),
rect.SizeY(),
rect.SizeX() * sizeof(DATA_TRAITS::pixel_t)
);
typedef AggTraits<DATA_TRAITS>::pixfmt_t agg_pixfmt_t;
agg_pixfmt_t pixfmt(buf);
agg::renderer_base<agg_pixfmt_t> rbase(pixfmt);
if (info.m_isOutlined)
gil::fill_pixels(v, gilOutlineColorTranslucent);
else
gil::fill_pixels(v, gilColorTranslucent);
m2::PointD center(info.resourceSize());
center *= 0.5;
agg::scanline_u8 s;
agg::rasterizer_scanline_aa<> rasterizer;
agg::ellipse ell;
unsigned radius = info.m_radius;
if (info.m_isOutlined)
radius += info.m_outlineWidth;
ell.init(center.x,
center.y,
radius,
radius,
100);
rasterizer.add_path(ell);
agg::render_scanlines_aa_solid(rasterizer,
s,
rbase,
info.m_isOutlined ? aggOutlineColor : aggColor);
if (info.m_isOutlined)
{
/// drawing inner circle
ell.init(center.x,
center.y,
info.m_radius,
info.m_radius,
100);
rasterizer.reset();
rasterizer.add_path(ell);
agg::render_scanlines_aa_solid(rasterizer,
s,
rbase,
aggColor);
}
}
Resource::Info const * Circle::info() const
{
return &m_info;
}
}
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