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e2737ab646
Create an alternative to getJSON to allow an object handle to be written as JSON without the overhead of creating a JSON object.
75 lines
1.8 KiB
C++
75 lines
1.8 KiB
C++
#include <qpdf/QPDF_Real.hh>
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#include <qpdf/JSON_writer.hh>
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#include <qpdf/QUtil.hh>
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QPDF_Real::QPDF_Real(std::string const& val) :
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QPDFValue(::ot_real, "real"),
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val(val)
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{
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}
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QPDF_Real::QPDF_Real(double value, int decimal_places, bool trim_trailing_zeroes) :
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QPDFValue(::ot_real, "real"),
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val(QUtil::double_to_string(value, decimal_places, trim_trailing_zeroes))
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{
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}
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std::shared_ptr<QPDFObject>
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QPDF_Real::create(std::string const& val)
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{
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return do_create(new QPDF_Real(val));
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}
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std::shared_ptr<QPDFObject>
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QPDF_Real::create(double value, int decimal_places, bool trim_trailing_zeroes)
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{
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return do_create(new QPDF_Real(value, decimal_places, trim_trailing_zeroes));
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}
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std::shared_ptr<QPDFObject>
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QPDF_Real::copy(bool shallow)
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{
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return create(val);
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}
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std::string
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QPDF_Real::unparse()
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{
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return this->val;
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}
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JSON
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QPDF_Real::getJSON(int json_version)
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{
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// While PDF allows .x or -.x, JSON does not. Rather than converting from string to double and
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// back, just handle this as a special case for JSON.
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std::string result;
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if (this->val.length() == 0) {
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// Can't really happen...
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result = "0";
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} else if (this->val.at(0) == '.') {
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result = "0" + this->val;
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} else if ((this->val.length() >= 2) && (this->val.at(0) == '-') && (this->val.at(1) == '.')) {
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result = "-0." + this->val.substr(2);
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} else {
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result = this->val;
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}
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return JSON::makeNumber(result);
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}
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void
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QPDF_Real::writeJSON(int json_version, JSON::Writer& p)
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{
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if (this->val.length() == 0) {
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// Can't really happen...
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p << "0";
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} else if (this->val.at(0) == '.') {
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p << "0" << this->val;
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} else if (this->val.length() >= 2 && this->val.at(0) == '-' && this->val.at(1) == '.') {
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p << "-0." << this->val.substr(2);
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} else {
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p << this->val;
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}
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}
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