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/* M_PI is defined in math.h in the case of Microsoft Visual C++, Solaris,
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* et. al.
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*/
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#if defined(_MSC_VER)
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#define _USE_MATH_DEFINES
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#endif
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#include <string>
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#include <iostream>
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#include <cairommconfig.h>
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#include <cairomm/context.h>
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#include <cairomm/surface.h>
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#include <cmath>
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int main()
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{
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#ifdef CAIRO_HAS_SVG_SURFACE
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std::string filename = "image.svg";
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double width = 600;
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double height = 400;
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auto surface =
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Cairo::SvgSurface::create(filename, width, height);
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auto cr = Cairo::Context::create(surface);
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cr->save(); // save the state of the context
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cr->set_source_rgb(0.86, 0.85, 0.47);
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cr->paint(); // fill image with the color
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cr->restore(); // color is back to black now
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cr->save();
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// draw a border around the image
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cr->set_line_width(20.0); // make the line wider
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cr->rectangle(0.0, 0.0, cairo_image_surface_get_width(surface->cobj()), height);
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cr->stroke();
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cr->set_source_rgba(0.0, 0.0, 0.0, 0.7);
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// draw a circle in the center of the image
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cr->arc(width / 2.0, height / 2.0,
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height / 4.0, 0.0, 2.0 * M_PI);
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cr->stroke();
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// draw a diagonal line
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cr->move_to(width / 4.0, height / 4.0);
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cr->line_to(width * 3.0 / 4.0, height * 3.0 / 4.0);
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cr->stroke();
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cr->restore();
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cr->show_page();
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std::cout << "Wrote SVG file \"" << filename << "\"" << std::endl;
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return 0;
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#else
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std::cout << "You must compile cairo with SVG support for this example to work."
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<< std::endl;
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return 1;
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#endif
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}
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