Attachment 101589 Details for Bug 76450 – Change direction of rotation

[patch] Change direction of rotation

0001-Change-direction-of-rotation.patch (text/plain), 1.65 KB, created by Marek Kasik on 2014-06-23 13:12:16 UTC

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Creator: Marek Kasik

Created: 2014-06-23 13:12:16 UTC

Size: 1.65 KB

patch

obsolete

>From 757ca510aacc8b75304351a6899fad64872d667c Mon Sep 17 00:00:00 2001
>From: Marek Kasik <mkasik@redhat.com>
>Date: Mon, 23 Jun 2014 15:11:26 +0200
>Subject: [PATCH] Change direction of rotation
>
>Convert rotation from clockwise direction as expected by libspectre to
>counter-clockwise direction as expected by the "rotate" operator.
>
>https://bugs.freedesktop.org/show_bug.cgi?id=76450
>---
> libspectre/spectre-gs.c | 11 ++++++-----
> 1 file changed, 6 insertions(+), 5 deletions(-)
>
>diff --git a/libspectre/spectre-gs.c b/libspectre/spectre-gs.c
>index adbc7ef..9193975 100644
>--- a/libspectre/spectre-gs.c
>+++ b/libspectre/spectre-gs.c
>@@ -121,7 +121,8 @@ spectre_gs_process (SpectreGS  *gs,
> 	if (rotation != 0) {
> 		char *set;
> 
>-		set = _spectre_strdup_printf ("%d rotate", rotation);
>+		/* Convert clockwise direction to counter-clockwise direction */
>+		set = _spectre_strdup_printf ("%d rotate", (360 - rotation) % 360);
> 		error = gsapi_run_string_continue (ghostscript_instance, set, strlen (set),
> 						   0, &exit_code);
> 		error = error == e_NeedInput ? 0 : error;
>@@ -255,16 +256,16 @@ spectre_gs_send_page (SpectreGS          *gs,
> 			tmp_yoffset = yoffset + y;
> 			break;
> 		case 90:
>-			tmp_xoffset = - (yoffset + y + crop_height);
>-			tmp_yoffset = xoffset + x;
>+			tmp_xoffset = yoffset + y;
>+			tmp_yoffset = - (xoffset + x + crop_width);
> 			break;
> 		case 180:
> 			tmp_xoffset = - (xoffset + x + crop_width);
> 			tmp_yoffset = - (yoffset + y + crop_height);
> 			break;
> 		case 270:
>-			tmp_xoffset = yoffset + y;
>-			tmp_yoffset = - (xoffset + x + crop_width);
>+			tmp_xoffset = - (yoffset + y + crop_height);
>+			tmp_yoffset = xoffset + x;
> 			break;
> 	}
> 
>-- 
>1.9.3
>

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Attachments on bug 76450: 96165 | 99100 | 99101 | 99156 | 99331 | 100723 | 101589 | 105606 | 105607 | 111047 | 111925 | 120955

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