From: Angus Leeming <leeming@lyx.org>
Date: Tue, 7 May 2002 10:03:07 +0000 (+0000)
Subject: Work-around for the can't rotate by 270degs bug.
X-Git-Tag: 1.6.10~19274
X-Git-Url: https://git.lyx.org/gitweb/?a=commitdiff_plain;h=cab2d103a093eafe6fd19ee51f54584c3c4eed08;hp=d1899a14fcd8dc94cf0410075edac7a4bc8749fd;p=lyx.git

Work-around for the can't rotate by 270degs bug.


git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@4134 a592a061-630c-0410-9148-cb99ea01b6c8
---

diff --git a/src/frontends/xforms/ChangeLog b/src/frontends/xforms/ChangeLog
index d4248b2fe2..ad35db0270 100644
--- a/src/frontends/xforms/ChangeLog
+++ b/src/frontends/xforms/ChangeLog
@@ -1,3 +1,8 @@
+2002-05-03  Angus Leeming  <a.leeming@ic.ac.uk>
+
+	* xformsGImage.C (rotate): work-around xforms bug when rotating by
+	270 degs.
+
 2002-05-02  Herbert Voss  <voss@perce.de>
 
 	* FormBibtex.C (apply): a change from a style to an empty one
diff --git a/src/frontends/xforms/xformsGImage.C b/src/frontends/xforms/xformsGImage.C
index ef0059e50b..9fca72733f 100644
--- a/src/frontends/xforms/xformsGImage.C
+++ b/src/frontends/xforms/xformsGImage.C
@@ -281,7 +281,16 @@ void xformsGImage::rotate(GParams const & params)
 
 	// The angle passed to flimage_rotate is the angle in one-tenth of a
 	// degree units.
-	flimage_rotate(image_, params.angle * 10, FLIMAGE_SUBPIXEL);
+
+	// Work around xforms bug when params.angle == 270
+	// the 'InternalError: bad special angle' error.
+	// This bug fix is not needed in xforms 1.0 and greater.
+	if (params.angle == 270) {
+		flimage_rotate(image_,  900, FLIMAGE_SUBPIXEL);
+		flimage_rotate(image_, 1800, FLIMAGE_SUBPIXEL);
+	} else {
+		flimage_rotate(image_, params.angle * 10, FLIMAGE_SUBPIXEL);
+	}
 }