X-Git-Url: https://fleuret.org/cgi-bin/gitweb/gitweb.cgi?a=blobdiff_plain;f=polygon.cc;h=e957ec11e845a49c763371860c6c0f800c4ef754;hb=fe0be986e63c5dabed472d68b0aa7c91ca0651db;hp=1b8b3629e3d2e15d65b3e9e3c321f12f4a16723f;hpb=762714b0bd3e8db3e57ef1e29bcf2adfefe7e5a5;p=universe.git

diff --git a/polygon.cc b/polygon.cc
index 1b8b362..e957ec1 100644
--- a/polygon.cc
+++ b/polygon.cc
@@ -47,8 +47,13 @@ Polygon *Polygon::clone() {
   return new Polygon(_mass, _red, _green, _blue, _relative_x, _relative_y, _nb_vertices);
 }
 
-void Polygon::print_fig(XFigTracer *tracer) {
-  tracer->draw_polygon(_nb_vertices, _x, _y);
+void Polygon::color_xfig(XFigTracer *tracer) {
+  tracer->add_color(int(255 * _red), int(255 * _green), int(255 * _blue));
+}
+
+void Polygon::print_xfig(XFigTracer *tracer) {
+  tracer->draw_polygon(int(255 * _red), int(255 * _green), int(255 * _blue),
+                       _nb_vertices, _x, _y);
 }
 
 void Polygon::draw(SimpleWindow *window) {
@@ -68,10 +73,26 @@ void Polygon::draw_contours(SimpleWindow *window) {
     y[n] = int(_y[n]);
   }
   window->color(0.0, 0.0, 0.0);
-  for(int n = 0; n < _nb_vertices; n++)
+  for(int n = 0; n < _nb_vertices; n++) {
     window->draw_line(x[n], y[n], x[(n+1)%_nb_vertices], y[(n+1)%_nb_vertices]);
+  }
+}
+
+#ifdef CAIRO_SUPPORT
+void Polygon::draw(cairo_t* context_resource) {
 }
 
+void Polygon::draw_contours(cairo_t* context_resource) {
+  cairo_set_line_width(context_resource, 1.0);
+  cairo_set_source_rgb (context_resource, 0.0, 0.0, 0.0);
+  for(int n = 0; n < _nb_vertices; n++) {
+    cairo_move_to(context_resource, _x[n], _y[n]);
+    cairo_line_to(context_resource, _x[(n+1)%_nb_vertices], _y[(n+1)%_nb_vertices]);
+  }
+  cairo_stroke(context_resource);
+}
+#endif
+
 void Polygon::set_vertex(int k, scalar_t x, scalar_t y) {
   _relative_x[k] = x;
   _relative_y[k] = y;
@@ -484,4 +505,3 @@ bool Polygon::collide(Polygon *p) {
 
   return false;
 }
-