X-Git-Url: https://fleuret.org/cgi-bin/gitweb/gitweb.cgi?a=blobdiff_plain;f=polygon.cc;h=e121e2cd19ff155f3af9a2ec4cdba443f78feeae;hb=8697ab57c9138aa2bb1657a971e4c2cc5e4a1606;hp=2ae238d3c1c39010c56da46953988655bfca6e58;hpb=3e51d77116e49ba279a6cbbf1dbbc893c4117eb4;p=universe.git

diff --git a/polygon.cc b/polygon.cc
index 2ae238d..e121e2c 100644
--- a/polygon.cc
+++ b/polygon.cc
@@ -56,6 +56,7 @@ void Polygon::print_xfig(XFigTracer *tracer) {
                        _nb_vertices, _x, _y);
 }
 
+#ifdef X11_SUPPORT
 void Polygon::draw(SimpleWindow *window) {
   window->color(_red, _green, _blue);
   int x[_nb_vertices], y[_nb_vertices];
@@ -73,10 +74,39 @@ 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++)
+  // window->color(1.0, 1.0, 1.0);
+  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]);
+  }
+}
+#endif
+
+#ifdef CAIRO_SUPPORT
+void Polygon::draw(cairo_t* context_resource) {
+  cairo_set_line_width(context_resource, 1.0);
+  cairo_set_source_rgb (context_resource, _red, _green, _blue);
+  cairo_move_to(context_resource, _x[0], _y[0]);
+  for(int n = 0; n < _nb_vertices; n++) {
+    cairo_line_to(context_resource, _x[n], _y[n]);
+  }
+  cairo_close_path(context_resource);
+  cairo_stroke_preserve(context_resource);
+  cairo_fill(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);
+  // cairo_set_source_rgb (context_resource, 1.0, 1.0, 1.0);
+  cairo_move_to(context_resource, _x[0], _y[0]);
+  for(int n = 0; n < _nb_vertices; n++) {
+    cairo_line_to(context_resource, _x[n], _y[n]);
+  }
+  cairo_close_path(context_resource);
+  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;
@@ -489,4 +519,3 @@ bool Polygon::collide(Polygon *p) {
 
   return false;
 }
-