1 files changed, 70 insertions, 0 deletions
diff --git a/test/arc.cxx b/test/arc.cxx
new file mode 100755
index 000000000..1c574cde5
--- /dev/null
+++ b/test/arc.cxx
@@ -0,0 +1,70 @@
+// Test fl_arc
+
+#include <FL/Fl.H>
+#include <FL/Fl_Double_Window.H>
+#include <FL/Fl_Hor_Value_Slider.H>
+#include <FL/fl_draw.H>
+
+double args[6] = {140, 140, 50, 0, 360, 0};
+const char* name[6] = {"X", "Y", "R", "start", "end", "rotate"};
+
+class Drawing : public Fl_Widget {
+  void draw() {
+    fl_clip(x(),y(),w(),h());
+    fl_color(FL_DARK3);
+    fl_rectf(x(),y(),w(),h());
+    fl_push_matrix();
+    if (args[5]) {
+      fl_translate(x()+w()/2.0, y()+h()/2.0);
+      fl_rotate(args[5]);
+      fl_translate(-(x()+w()/2.0), -(y()+h()/2.0));
+    }
+    fl_color(FL_WHITE);
+    fl_translate(x(),y());
+    fl_begin_complex_polygon();
+    fl_arc(args[0],args[1],args[2],args[3],args[4]);
+    fl_gap();
+    fl_arc(140,140,20,0,-360);
+    fl_end_complex_polygon();
+    fl_color(FL_RED);
+    fl_begin_line();
+    fl_arc(args[0],args[1],args[2],args[3],args[4]);
+    fl_end_line();
+    fl_pop_matrix();
+    fl_pop_clip();
+  }
+public:
+  Drawing(int X,int Y,int W,int H) : Fl_Widget(X,Y,W,H) {}
+};
+
+Drawing *d;
+
+void slider_cb(Fl_Widget* o, void* v) {
+  Fl_Slider* s = (Fl_Slider*)o;
+  args[long(v)] = s->value();
+  d->redraw();
+}
+
+int main(int argc, char** argv) {
+  Fl_Double_Window window(300,500);
+  Drawing drawing(10,10,280,280);
+  d = &drawing;
+
+  int y = 300;
+  for (int n = 0; n<6; n++) {
+    Fl_Slider* s = new Fl_Hor_Value_Slider(50,y,240,25,name[n]); y += 25;
+    if (n<3) {s->minimum(0); s->maximum(300);}
+    else if (n==5) {s->minimum(0); s->maximum(360);}
+    else {s->minimum(-360); s->maximum(360);}
+    s->step(1);
+    s->value(args[n]);
+    s->align(FL_ALIGN_LEFT);
+    s->callback(slider_cb, (void*)n);
+  }
+
+  window.end();
+  window.show(argc,argv);
+  return Fl::run();
+}
+
+