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https://github.com/tfussell/xlnt.git
synced 2024-03-22 13:11:17 +08:00
585 lines
12 KiB
C++
585 lines
12 KiB
C++
#include <algorithm>
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#include <locale>
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#include <sstream>
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#include <xlnt/cell/cell.hpp>
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#include <xlnt/cell/cell_reference.hpp>
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#include <xlnt/cell/comment.hpp>
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#include <xlnt/cell/value.hpp>
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#include <xlnt/common/datetime.hpp>
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#include <xlnt/common/relationship.hpp>
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#include <xlnt/worksheet/worksheet.hpp>
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#include <xlnt/common/exceptions.hpp>
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#include <xlnt/workbook/workbook.hpp>
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#include <xlnt/workbook/document_properties.hpp>
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#include "detail/cell_impl.hpp"
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namespace {
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// return s after checking encoding, size, and illegal characters
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std::string check_string(std::string s)
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{
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if (s.size() == 0)
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{
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return s;
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}
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// check encoding?
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if (s.size() > 32767)
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{
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s = s.substr(0, 32767); // max string length in Excel
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}
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for (unsigned char c : s)
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{
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if (c <= 8 || c == 11 || c == 12 || (c >= 14 && c <= 31))
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{
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throw "illegal characters";
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}
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}
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return s;
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}
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std::pair<bool, long double> cast_numeric(const std::string &s)
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{
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const char *str = s.c_str();
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char *str_end = nullptr;
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auto result = std::strtold(str, &str_end);
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if (str_end != str + s.size()) return{ false, 0 };
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return{ true, result };
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}
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std::pair<bool, long double> cast_percentage(const std::string &s)
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{
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if (s.back() == '%')
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{
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auto number = cast_numeric(s.substr(0, s.size() - 1));
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if (number.first)
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{
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return{ true, number.second / 100 };
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}
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}
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return { false, 0 };
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}
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std::pair<bool, xlnt::time> cast_time(const std::string &s)
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{
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xlnt::time result;
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try
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{
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auto last_colon = s.find_last_of(':');
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if (last_colon == std::string::npos) return { false, result };
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double seconds = std::stod(s.substr(last_colon + 1));
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result.second = static_cast<int>(seconds);
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result.microsecond = static_cast<int>((seconds - static_cast<double>(result.second)) * 1e6);
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auto first_colon = s.find_first_of(':');
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if (first_colon == last_colon)
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{
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auto decimal_pos = s.find('.');
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if (decimal_pos != std::string::npos)
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{
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result.minute = std::stoi(s.substr(0, first_colon));
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}
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else
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{
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result.hour = std::stoi(s.substr(0, first_colon));
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result.minute = result.second;
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result.second = 0;
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}
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}
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else
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{
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result.hour = std::stoi(s.substr(0, first_colon));
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result.minute = std::stoi(s.substr(first_colon + 1, last_colon - first_colon - 1));
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}
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}
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catch (std::invalid_argument)
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{
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return{ false, result };
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}
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return { true, result };
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}
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} // namespace
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namespace xlnt {
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const xlnt::color xlnt::color::black(0);
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const xlnt::color xlnt::color::white(1);
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const std::unordered_map<std::string, int> cell::ErrorCodes =
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{
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{"#NULL!", 0},
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{"#DIV/0!", 1},
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{"#VALUE!", 2},
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{"#REF!", 3},
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{"#NAME?", 4},
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{"#NUM!", 5},
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{"#N/A!", 6}
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};
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cell::cell() : d_(nullptr)
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{
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}
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cell::cell(detail::cell_impl *d) : d_(d)
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{
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}
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cell::cell(worksheet worksheet, const cell_reference &reference) : d_(nullptr)
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{
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cell self = worksheet.get_cell(reference);
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d_ = self.d_;
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}
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cell::cell(worksheet worksheet, const cell_reference &reference, const value &initial_value) : cell(worksheet, reference)
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{
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set_value(initial_value);
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}
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bool cell::garbage_collectible() const
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{
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return !(get_value().get_type() != value::type::null || is_merged() || has_comment() || has_formula());
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}
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value &cell::get_value()
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{
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return d_->value_;
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}
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const value &cell::get_value() const
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{
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return d_->value_;
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}
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void cell::set_value(const value &v)
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{
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d_->value_ = v;
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}
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void cell::set_value(const std::string &s)
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{
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d_->is_date_ = false;
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auto temp = check_string(s);
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d_->value_ = value(temp);
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if (temp.size() > 1 && temp.front() == '=')
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{
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d_->formula_ = temp;
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}
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if(get_parent().get_parent().get_guess_types())
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{
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auto percentage = cast_percentage(s);
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if (percentage.first)
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{
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d_->value_ = value(percentage.second);
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get_style().get_number_format().set_format_code(xlnt::number_format::format::percentage);
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}
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else
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{
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auto time = cast_time(s);
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if (time.first)
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{
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set_value(time.second);
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}
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else
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{
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auto numeric = cast_numeric(s);
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if (numeric.first)
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{
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d_->value_ = value(numeric.second);
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}
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}
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}
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}
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}
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void cell::set_value(const char *s)
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{
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set_value(std::string(s));
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}
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void cell::set_value(bool b)
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{
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d_->value_ = value(b);
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}
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void cell::set_value(std::int8_t i)
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{
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d_->value_ = value(i);
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}
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void cell::set_value(std::int16_t i)
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{
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d_->value_ = value(i);
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}
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void cell::set_value(std::int32_t i)
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{
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d_->value_ = value(i);
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}
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void cell::set_value(std::int64_t i)
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{
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d_->value_ = value(i);
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}
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void cell::set_value(std::uint8_t i)
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{
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d_->value_ = value(i);
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}
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void cell::set_value(std::uint16_t i)
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{
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d_->value_ = value(i);
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}
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void cell::set_value(std::uint32_t i)
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{
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d_->value_ = value(i);
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}
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void cell::set_value(std::uint64_t i)
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{
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d_->value_ = value(i);
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}
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#ifdef _WIN32
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void cell::set_value(unsigned long i)
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{
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d_->value_ = value(i);
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}
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#endif
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#ifdef __linux__
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void cell::set_value(long long i)
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{
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d_->value_ = value(i);
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}
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void cell::set_value(unsigned long long i)
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{
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d_->value_ = value(i);
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}
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#endif
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void cell::set_value(float f)
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{
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d_->value_ = value(f);
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}
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void cell::set_value(double d)
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{
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d_->value_ = value(d);
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}
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void cell::set_value(long double d)
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{
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d_->value_ = value(d);
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}
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void cell::set_value(const date &d)
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{
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d_->is_date_ = true;
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auto code = xlnt::number_format::format::date_yyyymmdd2;
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auto number_format = xlnt::number_format(code);
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get_style().set_number_format(number_format);
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auto base_date = get_parent().get_parent().get_properties().excel_base_date;
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set_value(d.to_number(base_date));
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}
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void cell::set_value(const datetime &d)
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{
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d_->is_date_ = true;
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auto code = xlnt::number_format::format::date_datetime;
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auto number_format = xlnt::number_format(code);
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get_style().set_number_format(number_format);
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auto base_date = get_parent().get_parent().get_properties().excel_base_date;
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set_value(d.to_number(base_date));
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}
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void cell::set_value(const time &t)
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{
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d_->is_date_ = true;
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auto code = xlnt::number_format::format::date_time6;
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auto number_format = xlnt::number_format(code);
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get_style().set_number_format(number_format);
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set_value(t.to_number());
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}
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void cell::set_value(const timedelta &t)
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{
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d_->is_date_ = true;
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set_value(t.to_number());
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}
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bool cell::has_style() const
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{
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return d_->style_ != nullptr;
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}
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row_t cell::get_row() const
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{
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return d_->row_ + 1;
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}
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std::string cell::get_column() const
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{
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return cell_reference::column_string_from_index(d_->column_ + 1);
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}
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void cell::set_merged(bool merged)
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{
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d_->merged = merged;
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}
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bool cell::is_merged() const
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{
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return d_->merged;
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}
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bool cell::is_date() const
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{
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return d_->is_date_ || (d_->style_ != nullptr && get_style().get_number_format().get_format_code() == number_format::format::date_xlsx14);
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}
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cell_reference cell::get_reference() const
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{
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return {d_->column_, d_->row_};
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}
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bool cell::operator==(std::nullptr_t) const
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{
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return d_ == nullptr;
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}
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bool cell::operator==(const cell &comparand) const
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{
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if(comparand == nullptr)
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{
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return d_ == nullptr;
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}
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return d_->value_ == comparand.d_->value_;
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}
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style &cell::get_style()
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{
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if(d_->style_ == nullptr)
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{
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d_->style_ = new style();
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}
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return *d_->style_;
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}
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const style &cell::get_style() const
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{
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if(d_->style_ == nullptr)
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{
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d_->style_ = new style();
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}
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return *d_->style_;
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}
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void cell::set_style(const xlnt::style &s)
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{
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get_style() = s;
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}
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cell &cell::operator=(const cell &rhs)
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{
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d_ = rhs.d_;
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return *this;
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}
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bool operator<(cell left, cell right)
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{
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return left.get_reference() < right.get_reference();
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}
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std::string cell::to_string() const
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{
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return "<Cell " + worksheet(d_->parent_).get_title() + "." + get_reference().to_string() + ">";
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}
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relationship cell::get_hyperlink() const
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{
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if(!d_->has_hyperlink_)
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{
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throw std::runtime_error("no hyperlink set");
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}
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return d_->hyperlink_;
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}
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bool cell::has_hyperlink() const
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{
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return d_->has_hyperlink_;
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}
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void cell::set_hyperlink(const std::string &hyperlink)
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{
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if(hyperlink.length() == 0 || std::find(hyperlink.begin(), hyperlink.end(), ':') == hyperlink.end())
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{
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throw data_type_exception();
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}
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d_->has_hyperlink_ = true;
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d_->hyperlink_ = worksheet(d_->parent_).create_relationship(relationship::type::hyperlink, hyperlink);
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if(get_value().is(value::type::null))
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{
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set_value(hyperlink);
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}
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}
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void cell::set_formula(const std::string &formula)
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{
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if(formula.length() == 0)
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{
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throw data_type_exception();
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}
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d_->formula_ = formula;
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}
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bool cell::has_formula() const
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{
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return !d_->formula_.empty();
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}
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std::string cell::get_formula() const
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{
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if(d_->formula_.empty())
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{
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throw data_type_exception();
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}
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return d_->formula_;
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}
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void cell::clear_formula()
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{
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d_->formula_.clear();
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}
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void cell::set_comment(const xlnt::comment &c)
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{
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if(!has_comment())
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{
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get_parent().increment_comments();
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}
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d_->comment_ = c;
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}
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void cell::clear_comment()
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{
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if(has_comment())
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{
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get_parent().decrement_comments();
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}
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d_->comment_ = comment();
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}
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bool cell::has_comment() const
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{
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return d_->comment_.get_text() != "";
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}
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void cell::set_error(const std::string &error)
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{
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if(error.length() == 0 || error[0] != '#')
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{
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throw data_type_exception();
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}
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set_value(value::error(error));
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}
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cell cell::offset(column_t column, row_t row)
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{
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return get_parent().get_cell(cell_reference(d_->column_ + column, d_->row_ + row));
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}
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worksheet cell::get_parent()
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{
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return worksheet(d_->parent_);
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}
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const worksheet cell::get_parent() const
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{
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return worksheet(d_->parent_);
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}
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comment cell::get_comment() const
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{
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return d_->comment_;
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}
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std::pair<int, int> cell::get_anchor() const
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{
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static const double DefaultColumnWidth = 51.85;
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static const double DefaultRowHeight = 15.0;
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auto points_to_pixels = [](double value, double dpi) { return (int)std::ceil(value * dpi / 72); };
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auto left_columns = d_->column_;
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auto &column_dimensions = get_parent().get_column_dimensions();
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int left_anchor = 0;
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auto default_width = points_to_pixels(DefaultColumnWidth, 96.0);
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for(int column_index = 1; column_index <= (int)left_columns; column_index++)
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{
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if(column_dimensions.find(column_index) != column_dimensions.end())
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{
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auto cdw = column_dimensions.at(column_index);
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if(cdw > 0)
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{
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left_anchor += points_to_pixels(cdw, 96.0);
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continue;
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}
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}
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left_anchor += default_width;
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}
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auto top_rows = d_->row_;
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auto &row_dimensions = get_parent().get_row_dimensions();
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int top_anchor = 0;
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auto default_height = points_to_pixels(DefaultRowHeight, 96.0);
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for(int row_index = 1; row_index <= (int)top_rows; row_index++)
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{
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if(row_dimensions.find(row_index) != row_dimensions.end())
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{
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auto rdh = row_dimensions.at(row_index);
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if(rdh > 0)
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{
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top_anchor += points_to_pixels(rdh, 96.0);
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continue;
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}
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}
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top_anchor += default_height;
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}
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return {left_anchor, top_anchor};
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}
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} // namespace xlnt
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