Add progress bar

3 files changed, 21 insertions, 2 deletions

diff --git a/src/diffraction.c b/src/diffraction.c
index 8d26dc7c..25b8c3b4 100644
--- a/src/diffraction.c
+++ b/src/diffraction.c
@@ -136,6 +136,6 @@ void get_diffraction(struct image *image, UnitCell *cell)
 		image->sfacs[x + image->width*y] = f_lattice * f_molecule;
 
 	}
-	printf("x=%i\n", x);
+	progress_bar(x, image->width-1);
 	}
 }
diff --git a/src/utils.c b/src/utils.c
index fa239f90..d58f4db8 100644
--- a/src/utils.c
+++ b/src/utils.c
@@ -156,3 +156,21 @@ void mapping_rotate(double x, double y, double z,
 	*ddy = ny;
 	*ddz = nz;
 }
+
+
+void progress_bar(int val, int total)
+{
+	double frac;
+	int n, i;
+	char s[1024];
+
+	frac = (double)val/total;
+	n = frac*80;
+
+	for ( i=0; i<n; i++ ) s[i] = '=';
+	for ( i=n; i<80; i++ ) s[i] = '.';
+	s[n] = '\0';
+	printf("\r|%s|", s);
+
+	if ( val == total ) printf("\n");
+}
diff --git a/src/utils.h b/src/utils.h
index 1de0ea09..7940d77f 100644
--- a/src/utils.h
+++ b/src/utils.h
@@ -50,7 +50,8 @@ extern int sign(double a);
 extern void mapping_rotate(double x, double y, double z,
                            double *ddx, double *ddy, double *ddz,
                            double omega, double tilt);
-                           
+extern void progress_bar(int val, int total);
+
 #define rad2deg(a) ((a)*180/M_PI)
 #define deg2rad(a) ((a)*M_PI/180)