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// Copyright 2008, Google Inc. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
// 3. Neither the name of Google Inc. nor the names of its contributors may be
// used to endorse or promote products derived from this software without
// specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
// EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// This program makes some basic use of the KML Engine
// CreateNetworkResolvedStyle() function. For example:
/*
resolvestyle \
http://kml-samples.googlecode.com/svn/trunk/kml/Style/remote-style.kml \
radio-relative|radio-absolute
*/
#include <iostream>
#include "kml/base/file.h"
#include "kml/dom.h"
#include "kml/engine.h"
#include "curlfetch.h"
using kmldom::FeaturePtr;
using kmldom::StylePtr;
using kmlengine::KmlFile;
using kmlengine::KmlFilePtr;
// This prints out the normal <Style> for the feature of the given id in the
// given KML file.
void HelloCreateResolvedStyle(const std::string& kml_url,
const std::string& id) {
// Networked style resolution requires a KmlCache to fetch through.
CurlNetFetcher curl_net_fetcher;
kmlengine::KmlCache kml_cache(&curl_net_fetcher, 2);
// KmlCache fetches this URL using the supplied CurlNetFetcher,
// parses the KML into a KmlFile, and sets the URL and KmlCache
// of the KmlFile.
const KmlFilePtr kml_file = kml_cache.FetchKmlAbsolute(kml_url);
if (!kml_file) {
std::cerr << "parse or fetch failed: " << kml_url << std::endl;
return;
}
// Look up the Feature
const FeaturePtr feature = kmldom::AsFeature(kml_file->GetObjectById(id));
if (!feature) {
std::cerr << "no feature with id: " << id << std::endl;
return;
}
// Create a resolved style for the Feature and print it.
// Since this KmlFile came from a KmlCache CreateResolvedStyle()
// will fetch any remote styleUrl's through this KmlCache.
StylePtr style = kmlengine::CreateResolvedStyle(
feature, kml_file, kmldom::STYLESTATE_NORMAL);
std::cout << kmldom::SerializePretty(style);
}
int main(int argc, char** argv) {
if (argc != 3) {
std::cerr << "usage: " << argv[0] << "kmlfile feature-id" << std::endl;
return -1;
}
HelloCreateResolvedStyle(argv[1], argv[2]);
return 0;
}
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