Print tree

The tree can be drawn. The lines are drawn during treewalk ( might need to change the name of the function), the rectangle after.

include/libdraw.h

@@ -18,6 +18,9 @@
 #define _LIBDRAW_H_
 
 #include <common.h>
+#define WIDTH  50
+#define HEIGHT 50
+#define SIZE 100
 
 BEGIN_C_DECLS
 
@@ -31,11 +34,11 @@ extern char *color[4];
  * function for treedraw
  */
 
-void libhqr_writeheader(FILE *tree);
-void libhqr_writeend(FILE *tree);
-void libhqr_drawTT(int x, int y, int w, int h, int k, FILE *tree);
-void libhqr_drawTS(int x, int y, int w, int h, int k, FILE *tree);
-void libhqr_drawline(int x1, int y1, int x2, int y2, FILE *tree);
+void libhqr_writeheader(FILE *file);
+void libhqr_writeend(FILE *file);
+void libhqr_drawTT(int x, int y, int w, int h, int k, FILE *file);
+void libhqr_drawTS(int x, int y, int w, int h, int k, FILE *file);
+void libhqr_drawline(int x1, int y1, int x2, int y2, int k, FILE *file);
 
 END_C_DECLS