cairo: define geometry functions, fixes debug link

dgl/src/Cairo.cpp

@@ -14,13 +14,98 @@
  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-#include "../Base.hpp"
+#include "../Geometry.hpp"
+#include "../Cairo.hpp"
 
 START_NAMESPACE_DGL
 
 // -----------------------------------------------------------------------
 
-// nothing here yet
+static void notImplemented(const char *name)
+{
+    d_stderr2("cairo function not implemented: %s", name);
+}
+
+// -----------------------------------------------------------------------
+// Line
+
+template<typename T>
+void Line<T>::draw()
+{
+    notImplemented("Line::draw");
+}
+
+// -----------------------------------------------------------------------
+// Circle
+
+template<typename T>
+void Circle<T>::_draw(const bool outline)
+{
+    notImplemented("Circle::draw");
+}
+
+// -----------------------------------------------------------------------
+// Triangle
+
+template<typename T>
+void Triangle<T>::_draw(const bool outline)
+{
+    notImplemented("Triangle::draw");
+}
+
+// -----------------------------------------------------------------------
+// Rectangle
+
+template<typename T>
+void Rectangle<T>::_draw(const bool outline)
+{
+    notImplemented("Rectangle::draw");
+}
+
+// -----------------------------------------------------------------------
+// Possible template data types
+
+template class Point<double>;
+template class Point<float>;
+template class Point<int>;
+template class Point<uint>;
+template class Point<short>;
+template class Point<ushort>;
+
+template class Size<double>;
+template class Size<float>;
+template class Size<int>;
+template class Size<uint>;
+template class Size<short>;
+template class Size<ushort>;
+
+template class Line<double>;
+template class Line<float>;
+template class Line<int>;
+template class Line<uint>;
+template class Line<short>;
+template class Line<ushort>;
+
+template class Circle<double>;
+template class Circle<float>;
+template class Circle<int>;
+template class Circle<uint>;
+template class Circle<short>;
+template class Circle<ushort>;
+
+template class Triangle<double>;
+template class Triangle<float>;
+template class Triangle<int>;
+template class Triangle<uint>;
+template class Triangle<short>;
+template class Triangle<ushort>;
+
+template class Rectangle<double>;
+template class Rectangle<float>;
+template class Rectangle<int>;
+template class Rectangle<uint>;
+template class Rectangle<short>;
+template class Rectangle<ushort>;
 
 // -----------------------------------------------------------------------