Measurement text size looked (almost) right on the screen but the size was all

wrong when printing.

- postscript.c: "realsize" incorrectly assumed that device space used units of
  1/72 inch
- postscript.c: decreased measurement text size from 10 pt to 8.5 pt



git-svn-id: http://svn.openmoko.org/trunk/eda/fped@5560 99fdad57-331a-0410-800a-d7fa5415bdb3

TODO

@@ -78,3 +78,6 @@ Future directions:
 - advanced: silk line width
 - future: consider editing non-canvas items (e.g., variable names/values) in
   place
+- add a means to cut&paste and copy&paste objects, and perhaps also variables
+  (to move objects, we need to make sure all references are included. besides
+  that, copy&paste should be a slight variation of delete/undelete)

postscript.c

@@ -63,7 +63,7 @@
 #define	PS_MEAS_LINE		mm_to_units(0.015)
 #define	PS_MEAS_ARROW_LEN	mm_to_units(0.15)
 #define	PS_MEAS_ARROW_ANGLE	30
-#define	PS_MEAS_TEXT_HEIGHT	mm_to_units(3.5)	/* ~10 pt, real mm */
+#define	PS_MEAS_TEXT_HEIGHT	mm_to_units(3)		/* ~8.5 pt, real mm */
 #define	PS_MEAS_BASE_OFFSET	mm_to_units(0.5)	/* real mm */
 #define	PS_CROSS_WIDTH		mm_to_units(0.01)
 #define	PS_CROSS_DASH		mm_to_units(0.1)
@@ -755,9 +755,10 @@ fprintf(file,
 	 */
 
 	fprintf(file,
+"/originalsize 1 0 matrix currentmatrix idtransform pop def\n"
 "/realsize {\n"
 "    254 div 72 mul 1000 div 0 matrix currentmatrix idtransform pop\n"
-"    } def\n");
+"    originalsize div } def\n");
 
 	fprintf(file, "%%%%EndProlog\n");
 }