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Date:      Mon, 16 May 2011 15:56:45 -0500
From:      Zhihao Yuan <lichray@gmail.com>
To:        FreeBSD-gnats-submit@FreeBSD.org
Subject:   ports/157095: graphics/mupdf: optional scroll hack
Message-ID:  <4dd18f93.113d2b0a.120d.ffff84a5@mx.google.com>
Resent-Message-ID: <201105162100.p4GL0MXg014119@freefall.freebsd.org>

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>Number:         157095
>Category:       ports
>Synopsis:       graphics/mupdf: optional scroll hack
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-ports-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          maintainer-update
>Submitter-Id:   current-users
>Arrival-Date:   Mon May 16 21:00:22 UTC 2011
>Closed-Date:
>Last-Modified:
>Originator:     Zhihao Yuan
>Release:        FreeBSD 8.2-STABLE amd64
>Organization:
Northern Illinois University
>Environment:
System: FreeBSD compaq.yuetime 8.2-STABLE FreeBSD 8.2-STABLE #1 r221793M: Wed May 11 21:44:19 CDT 2011 lichray@compaq.yuetime:/home/lichray/temp/obj/home/lichray/devel/freebsd-stable/sys/HOUKAGO amd64


	
>Description:
	
	In mupdf, j and k only scroll within one page. This patch adds an optional KNOB, WITH_SCROLL, to turn on a scroll hack, which makes j and k scroll to next/prev page when hits the bottom/top of the current page.

	Originates from http://www.linuxsir.org/bbs/thread376003.html (Chinese, membership required; follow up this PR so that I can send you the original patch).
>How-To-Repeat:
	
>Fix:

	

--- mupdf_1-scroll_hack.patch begins here ---
diff -ruN --exclude=CVS /usr/ports/graphics/mupdf.orig/Makefile /usr/ports/graphics/mupdf/Makefile
--- /usr/ports/graphics/mupdf.orig/Makefile	2011-05-07 09:21:43.000000000 -0500
+++ /usr/ports/graphics/mupdf/Makefile	2011-05-16 15:30:17.641449744 -0500
@@ -6,6 +6,7 @@
 
 PORTNAME=	mupdf
 PORTVERSION=	0.8.165
+PORTREVISION=	1
 PORTEPOCH=	1
 CATEGORIES=	graphics
 MASTER_SITES=	GOOGLE_CODE \
@@ -31,6 +32,12 @@
 LICENSE=	GPLv3
 LICENSE_FILE=	${WRKSRC}/COPYING
 
+.include <bsd.port.options.mk>
+
+.if defined(WITH_SCROLL)
+EXTRA_PATCHES+=	${FILESDIR}/scroll_hack-apps_pdfapp.c
+.endif
+
 post-patch:	.SILENT
 	${REINPLACE_CMD} \
 		-e 's#\(PDF_APPS :=.*/\)#\1mu_#' \
diff -ruN --exclude=CVS /usr/ports/graphics/mupdf.orig/files/scroll_hack-apps_pdfapp.c /usr/ports/graphics/mupdf/files/scroll_hack-apps_pdfapp.c
--- /usr/ports/graphics/mupdf.orig/files/scroll_hack-apps_pdfapp.c	1969-12-31 18:00:00.000000000 -0600
+++ /usr/ports/graphics/mupdf/files/scroll_hack-apps_pdfapp.c	2011-05-16 15:35:13.782785093 -0500
@@ -0,0 +1,34 @@
+--- apps/pdfapp.c.orig	2011-04-29 14:06:09.000000000 -0500
++++ apps/pdfapp.c	2011-05-16 15:34:57.393494127 -0500
+@@ -777,11 +777,15 @@ void pdfapp_onkey(pdfapp_t *app, int c)
+ 		break;
+ 
+ 	case 'j':
++		if (app->pany + app->image->h <= app->winh)
++			goto pagedown;
+ 		app->pany -= app->image->h / 10;
+ 		pdfapp_showpage(app, 0, 0, 1);
+ 		break;
+ 
+ 	case 'k':
++		if (app->pany >= 0)
++			goto pageup;
+ 		app->pany += app->image->h / 10;
+ 		pdfapp_showpage(app, 0, 0, 1);
+ 		break;
+@@ -843,6 +847,7 @@ void pdfapp_onkey(pdfapp_t *app, int c)
+ 	 */
+ 
+ 	case ',':
++	pageup:
+ 		panto = PAN_TO_BOTTOM;
+ 		if (app->numberlen > 0)
+ 			app->pageno -= atoi(app->number);
+@@ -851,6 +856,7 @@ void pdfapp_onkey(pdfapp_t *app, int c)
+ 		break;
+ 
+ 	case '.':
++	pagedown:
+ 		panto = PAN_TO_TOP;
+ 		if (app->numberlen > 0)
+ 			app->pageno += atoi(app->number);
--- mupdf_1-scroll_hack.patch ends here ---


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>Audit-Trail:
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