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authortpearson <tpearson@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2010-02-10 01:02:50 +0000
committertpearson <tpearson@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2010-02-10 01:02:50 +0000
commitc66249b79aa9bfa0924494adcd5345b5b1244b0c (patch)
tree19a77c57cc41d8b522554fbde0c36d6f20d7dc7b /src/imageutils/jpegerrormanager.h
downloadgwenview-c66249b79aa9bfa0924494adcd5345b5b1244b0c.tar.gz
gwenview-c66249b79aa9bfa0924494adcd5345b5b1244b0c.zip
Added old abandoned KDE3 version of gwenview
git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/gwenview@1088034 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
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diff --git a/src/imageutils/jpegerrormanager.h b/src/imageutils/jpegerrormanager.h
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+// vim: set tabstop=4 shiftwidth=4 noexpandtab
+/*
+Gwenview - A simple image viewer for KDE
+Copyright 2000-2004 Aurélien Gâteau
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+*/
+#ifndef JPEGERRORMANAGER_H
+#define JPEGERRORMANAGER_H
+
+#include <setjmp.h>
+
+extern "C" {
+#define XMD_H
+#include <jpeglib.h>
+#undef const
+}
+
+namespace ImageUtils {
+
+/**
+ * A simple error manager which overrides jpeg_error_mgr.error_exit to avoid
+ * calls to exit(). It uses setjmp, which I don't like, but I don't fill like
+ * introducing exceptions to the code base for now.
+ *
+ * In order to use it, give an instance of it to jpeg_decompress_struct.err,
+ * then call setjmp(errorManager.jmp_buffer)
+ */
+struct JPEGErrorManager : public jpeg_error_mgr {
+ JPEGErrorManager() : jpeg_error_mgr() {
+ jpeg_std_error(this);
+ error_exit=errorExitCallBack;
+ }
+
+ jmp_buf jmp_buffer;
+
+ static void errorExitCallBack (j_common_ptr cinfo) {
+ JPEGErrorManager* myerr = static_cast<JPEGErrorManager*>(cinfo->err);
+ char buffer[JMSG_LENGTH_MAX];
+ (*cinfo->err->format_message)(cinfo, buffer);
+ kdWarning() << k_funcinfo << buffer << endl;
+ longjmp(myerr->jmp_buffer, 1);
+ }
+};
+
+} // namespace
+
+#endif /* JPEGERRORMANAGER_H */