From: oetiker <oetiker@a5681a0c-68f1-0310-ab6d-d61299d08faa>
Date: Sun, 7 May 2006 10:46:24 +0000 (+0000)
Subject: make legend spacing more reliable. handle the fact that some graph comands do not... 
X-Git-Url: https://git.octo.it/?p=rrdtool.git;a=commitdiff_plain;h=51f4f28267599da6cbe56eb26237bdf808657abf

make legend spacing more reliable. handle the fact that some graph comands do not contribute to the legend -- tobi


git-svn-id: svn://svn.oetiker.ch/rrdtool/branches/1.2/program@822 a5681a0c-68f1-0310-ab6d-d61299d08faa
---

diff --git a/src/rrd_graph.c b/src/rrd_graph.c
index 37a313b..201ee4c 100644
--- a/src/rrd_graph.c
+++ b/src/rrd_graph.c
@@ -1399,6 +1399,7 @@ leg_place(image_desc_t *im)
     int   fill=0, fill_last;
     int   leg_c = 0;
     int   leg_x = border, leg_y = im->yimg;
+    int   leg_y_prev = im->yimg;
     int   leg_cc;
     int   glue = 0;
     int   i,ii, mark = 0;
@@ -1507,14 +1508,22 @@ leg_place(image_desc_t *im)
 		   + legspace[ii]
 		   + glue;
 	    }	                
-	    leg_y += im->text_prop[TEXT_PROP_LEGEND].size*1.8;
-	    if (prt_fctn == 's') leg_y -=  im->text_prop[TEXT_PROP_LEGEND].size;	   
+            leg_y_prev = leg_y;
+            /* only add y space if there was text on the line */
+            if (leg_x > border || prt_fctn == 's')            
+	       leg_y += im->text_prop[TEXT_PROP_LEGEND].size*1.8;
+	    if (prt_fctn == 's')
+               leg_y -=  im->text_prop[TEXT_PROP_LEGEND].size;	   
 	    fill = 0;
 	    leg_c = 0;
 	    mark = ii;
 	}	   
     }
-    im->yimg = leg_y;
+    im->yimg = leg_y_prev;
+    /* if we did place some legends we have to add vertical space */
+    if (leg_y != im->yimg){
+	im->yimg += im->text_prop[TEXT_PROP_LEGEND].size*1.8;
+    }
     free(legspace);
   }
   return 0;