Treewalk

Finalyzed the treewalk algorithm, removed useless queue functions.

include/libdraw.h

+/**
+  *
+  * @file libdraw.h
+  *
+  * Header file for all the functions of drawing.
+  *
+  * @copyright 2017 Bordeaux INP, CNRS (LaBRI UMR 5800), Inria,
+  *                      Univ. Bordeaux. All rights reserved.
+  *
+  * @version 1.0.0
+  * @author Raphael Boucherie
+  * @author Mathieu Faverge
+  * @date 2017-04-04
+  *
+  **/
+
+#ifndef _LIBDRAW_H_
+#define _LIBDRAW_H_
+
+#include <common.h>
+
+BEGIN_C_DECLS
+
+/*
+ * Clobal array for color
+ */
+
+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);
+
+END_C_DECLS
+
+#endif /* _LIBDRAW_H_ */