1 files changed, 92 insertions, 0 deletions
diff --git a/reader/src/formats/fb2/FB2CoverReader.cpp b/reader/src/formats/fb2/FB2CoverReader.cpp
new file mode 100644
index 0000000..cc84ac2
--- /dev/null
+++ b/reader/src/formats/fb2/FB2CoverReader.cpp
@@ -0,0 +1,92 @@
+/*
+ * Copyright (C) 2004-2012 Geometer Plus <contact@geometerplus.com>
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+#include <ZLFileImage.h>
+
+#include "FB2CoverReader.h"
+
+#include "../../library/Book.h"
+
+FB2CoverReader::FB2CoverReader(const ZLFile &file) : myFile(file) {
+}
+
+shared_ptr<const ZLImage> FB2CoverReader::readCover() {
+	myReadCoverPage = false;
+	myLookForImage = false;
+	myImageId.erase();
+	myImageStart = -1;
+
+	readDocument(myFile);
+
+	return myImage;
+}
+
+bool FB2CoverReader::processNamespaces() const {
+	return true;
+}
+
+void FB2CoverReader::startElementHandler(int tag, const char **attributes) {
+	switch (tag) {
+		case _COVERPAGE:
+			myReadCoverPage = true;
+			break;
+		case _IMAGE:
+			if (myReadCoverPage) {
+				const char *ref = attributeValue(attributes, myHrefPredicate);
+				if (ref != 0 && *ref == '#' && *(ref + 1) != '\0') {
+					myImageId = ref + 1;
+				}
+			}
+			break;
+		case _BINARY:
+		{
+			const char *id = attributeValue(attributes, "id");
+			const char *contentType = attributeValue(attributes, "content-type");
+			if (id != 0 && contentType != 0 && myImageId == id) {
+				myLookForImage = true;
+			}
+		}
+	}
+}
+
+void FB2CoverReader::endElementHandler(int tag) {
+	switch (tag) {
+		case _COVERPAGE:
+			myReadCoverPage = false;
+			break;
+		case _DESCRIPTION:
+			if (myImageId.empty()) {
+				interrupt();
+			}
+			break;
+		case _BINARY:
+			if (!myImageId.empty() && myImageStart >= 0) {
+				myImage = new ZLFileImage(myFile, myImageStart, getCurrentPosition() - myImageStart, ZLFileImage::ENCODING_BASE64);
+				interrupt();
+			}
+			break;
+	}
+}
+
+void FB2CoverReader::characterDataHandler(const char *text, std::size_t len) {
+	if (len > 0 && myLookForImage) {
+		myImageStart = getCurrentPosition();
+		myLookForImage = false;
+	}
+}