本文整理汇总了C++中IptcData::findKey方法的典型用法代码示例。如果您正苦于以下问题：C++ IptcData::findKey方法的具体用法？C++ IptcData::findKey怎么用？C++ IptcData::findKey使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类IptcData的用法示例。
在下文中一共展示了IptcData::findKey方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: processRemove
void processRemove(const std::string& line, int num, IptcData &iptcData)
{
std::string::size_type keyStart = line.find_first_not_of(" \t", 1);
if (keyStart == std::string::npos) {
std::ostringstream os;
os << "Invalid \'r\' command at line " << num;
throw Error(1, os.str());
}
const std::string key( line.substr(keyStart) );
IptcKey iptcKey(key);
IptcData::iterator iter = iptcData.findKey(iptcKey);
if (iter != iptcData.end()) {
iptcData.erase(iter);
}
}示例2: processModify
void processModify(const std::string& line, int num, IptcData &iptcData)
{
std::string::size_type keyStart = line.find_first_not_of(" \t", 1);
std::string::size_type keyEnd = line.find_first_of(" \t", keyStart+1);
std::string::size_type dataStart = line.find_first_not_of(" \t", keyEnd+1);
if (keyStart == std::string::npos ||
keyEnd == std::string::npos ||
dataStart == std::string::npos) {
std::ostringstream os;
os << "Invalid \'m\' command at line " << num;
throw Error(1, os.str());
}
std::string key(line.substr(keyStart, keyEnd-keyStart));
IptcKey iptcKey(key);
std::string data(line.substr(dataStart));
// if data starts and ends with quotes, remove them
if (data.at(0) == '\"' && data.at(data.size()-1) == '\"') {
data = data.substr(1, data.size()-2);
}
TypeId type = IptcDataSets::dataSetType(iptcKey.tag(), iptcKey.record());
Value::AutoPtr value = Value::create(type);
value->read(data);
IptcData::iterator iter = iptcData.findKey(iptcKey);
if (iter != iptcData.end()) {
iter->setValue(value.get());
}
else {
int rc = iptcData.add(iptcKey, value.get());
if (rc) {
throw Error(1, "Iptc dataset already exists and is not repeatable");
}
}
}