multipage_hp2ps

Add support for splitting the key index over multiple pages in hp2ps
Multipage support can be requested with the -M command-line flag
or inferred if the number of bands requested is greater than 20
(the limit on the number of bands displayed has been removed)

Please include this change in the 6.6 branch as well as HEAD

1 files changed, 25 insertions, 7 deletions

diff --git a/utils/hp2ps/PsFile.c b/utils/hp2ps/PsFile.c
index 357f826259..1324da6f08 100644
--- a/utils/hp2ps/PsFile.c
+++ b/utils/hp2ps/PsFile.c
@@ -21,11 +21,8 @@ static void TitleOutlineBox PROTO((void)); /* forward */
 static void BigTitleText PROTO((void)); /* forward */
 static void TitleText PROTO((void)); /* forward */
 
-void
-PutPsFile()
+static void DoTitleAndBox()
 {
-    Prologue();
-    Variables();
     BorderOutlineBox();
 
     if (bflag) {
@@ -35,12 +32,35 @@ PutPsFile()
 	TitleOutlineBox();
 	TitleText();
     }
+}
+
+static void Landscape PROTO((void));			/* forward */
+static void Portrait  PROTO((void));			/* forward */
+
+void NextPage() {
+    fprintf(psfp, "showpage\n");
+    if (gflag) Portrait(); else Landscape();
+    DoTitleAndBox();
+}
+
+void
+PutPsFile()
+{
+    Prologue();
+    Variables();
 
     CurvesInit();
 
+    DoTitleAndBox();
+
+    if (multipageflag) {
+      Key(); // print multi-page key even if there are more than 20 bands 
+      NextPage();
+    }
+
     Axes();
 
-    if (TWENTY) Key();
+    if (!multipageflag && (TWENTY != 0)) Key();
 
     Curves();
 
@@ -52,8 +72,6 @@ PutPsFile()
 
 static void StandardSpecialComments PROTO((void));	/* forward */
 static void EPSFSpecialComments PROTO((floatish));	/* forward */
-static void Landscape PROTO((void));			/* forward */
-static void Portrait  PROTO((void));			/* forward */
 static void Scaling   PROTO((floatish));		/* forward */
 
 static void