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156 lines
3.2 KiB
156 lines
3.2 KiB
/*
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A KIPI plugin to generate HTML image galleries
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Copyright 2006 by Aurelien Gateau <aurelien dot gateau at free.fr>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Cambridge, MA 02110-1301, USA.
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*/
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#ifndef XMLUTILS_H
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#define XMLUTILS_H
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#include <kdebug.h>
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#include <libxml/xmlwriter.h>
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namespace KIPIHTMLExport {
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/**
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* A simple wrapper for a C structure pointed to by @Ptr, which must be freed
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* with @freeFcn
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*/
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template <class Ptr, void(*freeFcn)(Ptr)>
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class CWrapper {
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public:
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CWrapper() : mPtr(0) {}
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CWrapper(Ptr ptr)
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: mPtr(ptr) {}
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~CWrapper() {
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freeFcn(mPtr);
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}
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operator Ptr() const {
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return mPtr;
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}
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bool operator!() const {
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return !mPtr;
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}
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void assign(Ptr ptr) {
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if (mPtr) freeFcn(mPtr);
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mPtr=ptr;
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}
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private:
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Ptr mPtr;
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};
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/**
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* Simple wrapper around xmlTextWriter
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*/
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class XMLWriter {
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public:
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bool open(const TQString& name) {
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xmlTextWriterPtr ptr=xmlNewTextWriterFilename(name.local8Bit(), 0);
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if (!ptr) return false;
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mWriter.assign(ptr);
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int rc=xmlTextWriterStartDocument(ptr, NULL, "UTF-8", NULL);
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if (rc<0) {
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mWriter.assign(0);
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return false;
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}
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xmlTextWriterSetIndent(ptr, 1);
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return true;
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}
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operator xmlTextWriterPtr() const {
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return mWriter;
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}
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void writeElement(const char* element, const TQString& value) {
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xmlTextWriterWriteElement(mWriter, BAD_CAST element, BAD_CAST value.utf8().data());
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}
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void writeElement(const char* element, int value) {
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writeElement(element, TQString::number(value));
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}
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private:
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CWrapper<xmlTextWriterPtr,xmlFreeTextWriter> mWriter;
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};
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/**
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* A list of attributes for an XML element. To be used with @ref XMLElement
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*/
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class XMLAttributeList {
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typedef TQMap<TQString, TQString> Map;
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public:
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void write(XMLWriter& writer) const {
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Map::const_iterator it=mMap.begin();
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Map::const_iterator end=mMap.end();
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for (; it!=end; ++it) {
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xmlTextWriterWriteAttribute(writer,
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BAD_CAST it.key().ascii(),
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BAD_CAST it.data().utf8().data());
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}
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}
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void append(const TQString& key, const TQString& value) {
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mMap[key]=value;
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}
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void append(const TQString& key, int value) {
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mMap[key]=TQString::number(value);
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}
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private:
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Map mMap;
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};
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/**
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* A class to generate an XML element
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*/
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class XMLElement {
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public:
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XMLElement(XMLWriter& writer, const TQString& element, const XMLAttributeList* attributeList=0)
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: mWriter(writer)
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{
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xmlTextWriterStartElement(writer, BAD_CAST element.ascii());
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if (attributeList) {
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attributeList->write(writer);
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}
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}
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~XMLElement() {
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xmlTextWriterEndElement(mWriter);
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}
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private:
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XMLWriter& mWriter;
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};
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} // namespace
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#endif /* XMLUTILS_H */
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