1 files changed, 61 insertions, 0 deletions
diff --git a/src/imageutils/jpegerrormanager.h b/src/imageutils/jpegerrormanager.h
new file mode 100644
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+++ b/src/imageutils/jpegerrormanager.h
@@ -0,0 +1,61 @@
+// vim: set tabstop=4 shiftwidth=4 noexpandtab
+/*
+Gwenview - A simple image viewer for KDE
+Copyright 2000-2004 Aurélien Gāteau
+ 
+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 */