Blame c++/vector/context.cpp
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#include <cmath></cmath>
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#include "activepoint.h"
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#include "context.h"
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Real Context::pixelsize_sqr() const {
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Cairo::Matrix m;
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ctx()->get_matrix(m);
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return 0.25*sqrt(m.xx*m.xx + m.xy*m.xy + m.yx*m.yx + m.yy*m.yy);
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}
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Real Context::pixelsize() const {
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return sqrt(pixelsize_sqr());
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}
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void Context::point(const ActivePoint &point) const {
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if (!point.visible) return;
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Color color = point.color;
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Color stroke_color = Color::black();
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if (!point.enabled) {
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color = color.mergecolor(Color::gray()).mulalpha();
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stroke_color = stroke_color.mergecolor(Color::gray()).mulalpha();
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}
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ctx()->save();
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ctx()->arc(point.position.x, point.position.y, point.radius, 0, 2*pi);
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set_source_rgba(color);
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ctx()->fill_preserve();
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set_line_width_px(point.active ? 2 : 1);
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set_source_rgba(stroke_color);
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ctx()->stroke();
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ctx()->restore();
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}
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void Context::bezier(const Bezier &bezier, bool jump) const {
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if (jump) move_to(bezier.p0); else line_to(bezier.p0);
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ctx()->curve_to(bezier.pp0.x, bezier.pp0.y, bezier.pp1.x, bezier.pp1.y, bezier.p1.x, bezier.p1.y);
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}
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