Attachment 2454 Details for Bug 4363 – psutils-flip.diff

[patch] psutils-flip.diff

psutils-flip.diff (text/plain), 3.69 KB, created by Michael Shigorin on 2008-02-27 12:14:09 MSK

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Creator: Michael Shigorin

Created: 2008-02-27 12:14:09 MSK

Size: 3.69 KB

patch

obsolete

>Patch for pstops from psutils to allow page flipping (i. e. mirroring).
>Useful for creating of print matrices on transparent films.
>
>http://www.penguin.cz/~utx
>ftp://ftp.penguin.cz/pub/users/utx/psutils/psutils-flip.diff
>
>--- psutils/pstops.c.orig	1997-03-11 23:53:04.000000000 +0100
>+++ psutils/pstops.c	2002-07-26 19:14:49.000000000 +0200
>@@ -35,7 +35,7 @@
> {
>    fprintf(stderr, "%s: page specification error:\n", program);
>    fprintf(stderr, "  <pagespecs> = [modulo:]<spec>\n");
>-   fprintf(stderr, "  <spec>      = [-]pageno[@scale][L|R|U][(xoff,yoff)][,spec|+spec]\n");
>+   fprintf(stderr, "  <spec>      = [-]pageno[@scale][L|R|U|H|V][(xoff,yoff)][,spec|+spec]\n");
>    fprintf(stderr, "                modulo>=1, 0<=pageno<modulo\n");
>    fflush(stderr);
>    exit(1);
>@@ -81,6 +81,14 @@
> 	    tail->rotate += 180;
> 	    tail->flags |= ROTATE;
> 	    break;
>+	 case 'h': case 'H':
>+	    tail->hflip += 1;
>+	    tail->flags |= HFLIP;
>+	    break;
>+	 case 'v': case 'V':
>+	    tail->vflip += 1;
>+	    tail->flags |= VFLIP;
>+	    break;
> 	 case '(':
> 	    tail->xoff += parsedimen(&str, argerror);
> 	    if (*str++ != ',') argerror();
>--- psutils/psspec.h.orig	1997-03-11 23:53:04.000000000 +0100
>+++ psutils/psspec.h	2002-07-26 17:41:41.000000000 +0200
>@@ -8,12 +8,14 @@
> /* pagespec flags */
> #define ADD_NEXT (0x01)
> #define ROTATE   (0x02)
>-#define SCALE    (0x04)
>-#define OFFSET   (0x08)
>-#define GSAVE    (ROTATE|SCALE|OFFSET)
>+#define HFLIP    (0x04)
>+#define VFLIP    (0x08)
>+#define SCALE    (0x10)
>+#define OFFSET   (0x20)
>+#define GSAVE    (ROTATE|HFLIP|VFLIP|SCALE|OFFSET)
> 
> typedef struct pagespec {
>-   int reversed, pageno, flags, rotate;
>+   int reversed, pageno, flags, rotate, hflip, vflip;
>    double xoff, yoff, scale;
>    struct pagespec *next;
> } PageSpec ;
>--- psutils/psspec.c.orig	1997-03-11 23:53:04.000000000 +0100
>+++ psutils/psspec.c	2002-07-26 19:21:10.000000000 +0200
>@@ -22,6 +22,8 @@
>    if (temp == NULL)
>       message(FATAL, "out of memory\n");
>    temp->reversed = temp->pageno = temp->flags = temp->rotate = 0;
>+   temp->hflip = 0;
>+   temp->vflip = 0;
>    temp->scale = 1;
>    temp->xoff = temp->yoff = 0;
>    temp->next = NULL;
>@@ -208,6 +210,14 @@
> 	       sprintf(buffer, "%d rotate\n", ps->rotate);
> 	       writestring(buffer);
> 	    }
>+	    if ((ps->flags & HFLIP) && (ps->hflip%2)) {
>+	       sprintf(buffer, "[ -1 0 0 1 %f 0 ] concat\n", width*ps->scale);
>+	       writestring(buffer);
>+	    }
>+	    if ((ps->flags & VFLIP) && (ps->vflip%2)) {
>+	       sprintf(buffer, "[ 1 0 0 -1 0 %f ] concat\n", height*ps->scale);
>+	       writestring(buffer);
>+	    }
> 	    if (ps->flags & SCALE) {
> 	       sprintf(buffer, "%f dup scale\n", ps->scale);
> 	       writestring(buffer);
>--- psutils/pstops.man.orig	1997-03-11 23:53:04.000000000 +0100
>+++ psutils/pstops.man	2002-07-26 19:25:37.000000000 +0200
>@@ -43,7 +43,7 @@
> .I = spec[+specs][,specs]
> .TP
> .I spec
>-.I = [-]pageno[L][R][U][@scale][(xoff,yoff)]
>+.I = [-]pageno[L][R][U][H][V][@scale][(xoff,yoff)]
> .RE
> .sp
> .I modulo
>@@ -74,8 +74,9 @@
> or
> .B "h"
> to specify as a multiple of the width or height.
>-The optional parameters \fIL\fR, \fIR\fR, and \fIU\fR rotate the page left,
>-right, or upside-down.
>+The optional parameters \fIL\fR, \fIR\fR, \fIU\fR, \fIH\fR and \fIV\fR
>+rotate the page left, right, or upside-down, and flip (mirror) page
>+horizontally or vertically.
> The optional
> .I scale
> parameter scales the page by the fraction specified.
>--- psutils/README.orig	1997-03-11 23:53:05.000000000 +0100
>+++ psutils/README	2002-07-26 19:36:58.000000000 +0200
>@@ -181,6 +181,7 @@
> 	Mike Coleman
> 	Dale Scheetz		dwarf@polaris.net
> 	Yves Arrouye		arrouye@marin.fdn.fr
>+	Stanislav Brabec	utx@penguin.cz
> 
> (Apologies to anyone who I have left out, it was not intentional.)
>

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