xlnt/source/cell/cell.cpp

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// Copyright (c) 2014-2020 Thomas Fussell
// Copyright (c) 2010-2015 openpyxl
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, WRISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE
//
// @license: http://www.opensource.org/licenses/mit-license.php
// @author: see AUTHORS file
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#include <algorithm>
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#include <cmath>
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#include <sstream>
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#include <xlnt/cell/cell.hpp>
#include <xlnt/cell/cell_reference.hpp>
#include <xlnt/cell/comment.hpp>
#include <xlnt/cell/hyperlink.hpp>
#include <xlnt/cell/rich_text.hpp>
#include <xlnt/packaging/manifest.hpp>
#include <xlnt/packaging/relationship.hpp>
#include <xlnt/styles/alignment.hpp>
#include <xlnt/styles/border.hpp>
#include <xlnt/styles/color.hpp>
#include <xlnt/styles/fill.hpp>
#include <xlnt/styles/font.hpp>
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#include <xlnt/styles/format.hpp>
#include <xlnt/styles/number_format.hpp>
#include <xlnt/styles/protection.hpp>
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#include <xlnt/styles/style.hpp>
#include <xlnt/utils/date.hpp>
#include <xlnt/utils/datetime.hpp>
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#include <xlnt/utils/exceptions.hpp>
#include <xlnt/utils/time.hpp>
#include <xlnt/utils/timedelta.hpp>
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#include <xlnt/workbook/workbook.hpp>
#include <xlnt/worksheet/column_properties.hpp>
#include <xlnt/worksheet/phonetic_pr.hpp>
#include <xlnt/worksheet/row_properties.hpp>
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#include <xlnt/worksheet/worksheet.hpp>
#include <detail/implementations/cell_impl.hpp>
#include <detail/implementations/format_impl.hpp>
#include <detail/implementations/hyperlink_impl.hpp>
#include <detail/implementations/stylesheet.hpp>
#include <detail/implementations/worksheet_impl.hpp>
#include <xlnt/utils/numeric.hpp>
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namespace {
std::pair<bool, double> cast_numeric(const std::string &s)
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{
xlnt::detail::number_serialiser ser;
ptrdiff_t len_convert;
double result = ser.deserialise(s, &len_convert);
return (len_convert != static_cast<ptrdiff_t>(s.size()))
? std::make_pair(false, 0.0)
: std::make_pair(true, result);
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}
std::pair<bool, double> cast_percentage(const std::string &s)
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{
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if (s.back() == '%')
{
auto number = cast_numeric(s.substr(0, s.size() - 1));
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if (number.first)
{
return {true, number.second / 100};
}
}
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return {false, 0.0};
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}
std::pair<bool, xlnt::time> cast_time(const std::string &s)
{
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xlnt::time result;
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std::vector<std::string> time_components;
std::size_t prev = 0;
auto colon_index = s.find(':');
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while (colon_index != std::string::npos)
{
time_components.push_back(s.substr(prev, colon_index - prev));
prev = colon_index + 1;
colon_index = s.find(':', colon_index + 1);
}
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time_components.push_back(s.substr(prev, colon_index - prev));
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if (time_components.size() < 2 || time_components.size() > 3)
{
return {false, result};
}
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std::vector<double> numeric_components;
xlnt::detail::number_serialiser ser;
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for (auto component : time_components)
{
if (component.empty() || (component.substr(0, component.find('.')).size() > 2))
{
return {false, result};
}
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for (auto d : component)
{
if (!(d >= '0' && d <= '9') && d != '.')
{
return {false, result};
}
}
auto numeric = ser.deserialise(component);
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numeric_components.push_back(numeric);
}
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result.hour = static_cast<int>(numeric_components[0]);
result.minute = static_cast<int>(numeric_components[1]);
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if (std::fabs(static_cast<double>(result.minute) - numeric_components[1]) > std::numeric_limits<double>::epsilon())
{
result.minute = result.hour;
result.hour = 0;
result.second = static_cast<int>(numeric_components[1]);
result.microsecond = static_cast<int>((numeric_components[1] - result.second) * 1E6);
}
else if (numeric_components.size() > 2)
{
result.second = static_cast<int>(numeric_components[2]);
result.microsecond = static_cast<int>((numeric_components[2] - result.second) * 1E6);
}
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return {true, result};
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}
} // namespace
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namespace xlnt {
const std::unordered_map<std::string, int> &cell::error_codes()
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{
static const auto *codes = new std::unordered_map<std::string, int>{
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{"#NULL!", 0},
{"#DIV/0!", 1},
{"#VALUE!", 2},
{"#REF!", 3},
{"#NAME?", 4},
{"#NUM!", 5},
{"#N/A!", 6}};
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return *codes;
}
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std::string cell::check_string(const std::string &to_check)
{
// so we can modify it
std::string s = to_check;
if (s.size() == 0)
{
return s;
}
else if (s.size() > 32767)
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{
s = s.substr(0, 32767); // max string length in Excel
}
for (char c : s)
{
if (c >= 0 && (c <= 8 || c == 11 || c == 12 || (c >= 14 && c <= 31)))
{
throw illegal_character(c);
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}
}
return s;
}
cell::cell(detail::cell_impl *d)
: d_(d)
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{
}
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bool cell::garbage_collectible() const
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{
return d_->is_garbage_collectible();
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}
void cell::value(std::nullptr_t)
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{
clear_value();
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}
void cell::value(bool boolean_value)
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{
d_->type_ = type::boolean;
d_->value_numeric_ = boolean_value ? 1.0 : 0.0;
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}
void cell::value(int int_value)
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{
d_->value_numeric_ = static_cast<double>(int_value);
d_->type_ = type::number;
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}
void cell::value(unsigned int int_value)
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{
d_->value_numeric_ = static_cast<double>(int_value);
d_->type_ = type::number;
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}
void cell::value(long long int int_value)
{
d_->value_numeric_ = static_cast<double>(int_value);
d_->type_ = type::number;
}
void cell::value(unsigned long long int int_value)
{
d_->value_numeric_ = static_cast<double>(int_value);
d_->type_ = type::number;
}
void cell::value(float float_value)
{
d_->value_numeric_ = static_cast<double>(float_value);
d_->type_ = type::number;
}
void cell::value(double float_value)
{
d_->value_numeric_ = static_cast<double>(float_value);
d_->type_ = type::number;
}
void cell::value(const std::string &s)
{
value(rich_text(check_string(s)));
}
void cell::value(const rich_text &text)
{
check_string(text.plain_text());
d_->type_ = type::shared_string;
d_->value_numeric_ = static_cast<double>(workbook().add_shared_string(text));
}
void cell::value(const char *c)
{
value(std::string(c));
}
void cell::value(const cell c)
{
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d_->type_ = c.d_->type_;
d_->value_numeric_ = c.d_->value_numeric_;
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d_->value_text_ = c.d_->value_text_;
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d_->hyperlink_ = c.d_->hyperlink_;
d_->formula_ = c.d_->formula_;
d_->format_ = c.d_->format_;
}
void cell::value(const date &d)
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{
d_->type_ = type::number;
d_->value_numeric_ = d.to_number(base_date());
number_format(number_format::date_yyyymmdd2());
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}
void cell::value(const datetime &d)
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{
d_->type_ = type::number;
d_->value_numeric_ = d.to_number(base_date());
number_format(number_format::date_datetime());
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}
void cell::value(const time &t)
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{
d_->type_ = type::number;
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d_->value_numeric_ = t.to_number();
number_format(number_format::date_time6());
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}
void cell::value(const timedelta &t)
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{
d_->type_ = type::number;
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d_->value_numeric_ = t.to_number();
number_format(xlnt::number_format("[hh]:mm:ss"));
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}
row_t cell::row() const
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{
return d_->row_;
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}
column_t cell::column() const
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{
return d_->column_;
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}
column_t::index_t cell::column_index() const
{
return d_->column_.index;
}
void cell::merged(bool merged)
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{
d_->is_merged_ = merged;
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}
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bool cell::is_merged() const
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{
return d_->is_merged_;
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}
bool cell::phonetics_visible() const
{
return d_->phonetics_visible_;
}
void cell::show_phonetics(bool phonetics)
{
d_->phonetics_visible_ = phonetics;
}
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bool cell::is_date() const
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{
return data_type() == type::number
&& has_format()
&& number_format().is_date_format();
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}
cell_reference cell::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==(const cell &comparand) const
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{
return d_ == comparand.d_;
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}
bool cell::operator!=(const cell &comparand) const
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{
return d_ != comparand.d_;
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}
cell &cell::operator=(const cell &rhs) = default;
hyperlink cell::hyperlink() const
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{
return xlnt::hyperlink(&d_->hyperlink_.get());
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}
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void cell::hyperlink(const std::string &url, const std::string &display)
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{
if (url.empty())
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{
throw invalid_parameter();
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}
auto ws = worksheet();
auto &manifest = ws.workbook().manifest();
d_->hyperlink_ = detail::hyperlink_impl();
// check for existing relationships
auto relationships = manifest.relationships(ws.path(), relationship_type::hyperlink);
auto relation = std::find_if(relationships.cbegin(), relationships.cend(),
[&url](xlnt::relationship rel) { return rel.target().path().string() == url; });
if (relation != relationships.end())
{
d_->hyperlink_.get().relationship = *relation;
}
else
{ // register a new relationship
auto rel_id = manifest.register_relationship(
uri(ws.path().string()),
relationship_type::hyperlink,
uri(url),
target_mode::external);
// TODO: make manifest::register_relationship return the created relationship instead of rel id
d_->hyperlink_.get().relationship = manifest.relationship(ws.path(), rel_id);
}
// if a value is already present, the display string is ignored
if (has_value())
{
d_->hyperlink_.get().display.set(to_string());
}
else
{
d_->hyperlink_.get().display.set(display.empty() ? url : display);
value(hyperlink().display());
}
}
void cell::hyperlink(xlnt::cell target, const std::string &display)
{
// TODO: should this computed value be a method on a cell?
const auto cell_address = target.worksheet().title() + "!" + target.reference().to_string();
d_->hyperlink_ = detail::hyperlink_impl();
d_->hyperlink_.get().relationship = xlnt::relationship("", relationship_type::hyperlink,
uri(""), uri(cell_address), target_mode::internal);
// if a value is already present, the display string is ignored
if (has_value())
{
d_->hyperlink_.get().display.set(to_string());
}
else
{
d_->hyperlink_.get().display.set(display.empty() ? cell_address : display);
value(hyperlink().display());
}
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}
void cell::hyperlink(xlnt::range target, const std::string &display)
{
// TODO: should this computed value be a method on a cell?
const auto range_address = target.target_worksheet().title() + "!" + target.reference().to_string();
d_->hyperlink_ = detail::hyperlink_impl();
d_->hyperlink_.get().relationship = xlnt::relationship("", relationship_type::hyperlink,
uri(""), uri(range_address), target_mode::internal);
// if a value is already present, the display string is ignored
if (has_value())
{
d_->hyperlink_.get().display.set(to_string());
}
else
{
d_->hyperlink_.get().display.set(display.empty() ? range_address : display);
value(hyperlink().display());
}
}
void cell::formula(const std::string &formula)
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{
if (formula.empty())
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{
return clear_formula();
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}
if (formula[0] == '=')
{
d_->formula_ = formula.substr(1);
}
else
{
d_->formula_ = formula;
}
worksheet().register_calc_chain_in_manifest();
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}
bool cell::has_formula() const
{
return d_->formula_.is_set();
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}
std::string cell::formula() const
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{
return d_->formula_.get();
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}
void cell::clear_formula()
{
if (has_formula())
{
d_->formula_.clear();
worksheet().garbage_collect_formulae();
}
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}
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std::string cell::error() const
{
if (d_->type_ != type::error)
{
throw xlnt::exception("called error() when cell type is not error");
}
return value<std::string>();
}
void cell::error(const std::string &error)
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{
if (error.length() == 0 || error[0] != '#')
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{
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throw invalid_data_type();
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}
d_->value_text_.plain_text(error, false);
d_->type_ = type::error;
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}
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cell cell::offset(int column, int row)
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{
return worksheet().cell(reference().make_offset(column, row));
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}
worksheet cell::worksheet()
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{
return xlnt::worksheet(d_->parent_);
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}
const worksheet cell::worksheet() const
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{
return xlnt::worksheet(d_->parent_);
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}
workbook &cell::workbook()
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{
return worksheet().workbook();
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}
const workbook &cell::workbook() const
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{
return worksheet().workbook();
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}
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std::pair<int, int> cell::anchor() const
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{
double left = 0;
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for (column_t column_index = 1; column_index <= d_->column_ - 1; column_index++)
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{
left += worksheet().column_width(column_index);
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}
double top = 0;
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for (row_t row_index = 1; row_index <= d_->row_ - 1; row_index++)
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{
top += worksheet().row_height(row_index);
}
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return {static_cast<int>(left), static_cast<int>(top)};
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}
cell::type cell::data_type() const
{
return d_->type_;
}
void cell::data_type(type t)
{
d_->type_ = t;
}
number_format cell::computed_number_format() const
{
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return xlnt::number_format();
}
font cell::computed_font() const
{
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return xlnt::font();
}
fill cell::computed_fill() const
{
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return xlnt::fill();
}
border cell::computed_border() const
{
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return xlnt::border();
}
alignment cell::computed_alignment() const
{
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return xlnt::alignment();
}
protection cell::computed_protection() const
{
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return xlnt::protection();
}
void cell::clear_value()
{
d_->value_numeric_ = 0;
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d_->value_text_.clear();
d_->type_ = cell::type::empty;
clear_formula();
}
template <>
XLNT_API bool cell::value() const
{
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return d_->value_numeric_ != 0.0;
}
template <>
XLNT_API int cell::value() const
{
return static_cast<int>(d_->value_numeric_);
}
template <>
XLNT_API long long int cell::value() const
{
return static_cast<long long int>(d_->value_numeric_);
}
template <>
XLNT_API unsigned int cell::value() const
{
return static_cast<unsigned int>(d_->value_numeric_);
}
template <>
XLNT_API unsigned long long cell::value() const
{
return static_cast<unsigned long long>(d_->value_numeric_);
}
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template <>
XLNT_API float cell::value() const
{
return static_cast<float>(d_->value_numeric_);
}
template <>
XLNT_API double cell::value() const
{
return static_cast<double>(d_->value_numeric_);
}
template <>
XLNT_API time cell::value() const
{
return time::from_number(d_->value_numeric_);
}
template <>
XLNT_API datetime cell::value() const
{
return datetime::from_number(d_->value_numeric_, base_date());
}
template <>
XLNT_API date cell::value() const
{
return date::from_number(static_cast<int>(d_->value_numeric_), base_date());
}
template <>
XLNT_API timedelta cell::value() const
{
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return timedelta::from_number(d_->value_numeric_);
}
void cell::alignment(const class alignment &alignment_)
{
auto new_format = has_format() ? modifiable_format() : workbook().create_format();
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format(new_format.alignment(alignment_, optional<bool>(true)));
}
void cell::border(const class border &border_)
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{
auto new_format = has_format() ? modifiable_format() : workbook().create_format();
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format(new_format.border(border_, optional<bool>(true)));
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}
void cell::fill(const class fill &fill_)
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{
auto new_format = has_format() ? modifiable_format() : workbook().create_format();
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format(new_format.fill(fill_, optional<bool>(true)));
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}
void cell::font(const class font &font_)
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{
auto new_format = has_format() ? modifiable_format() : workbook().create_format();
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format(new_format.font(font_, optional<bool>(true)));
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}
void cell::number_format(const class number_format &number_format_)
{
auto new_format = has_format() ? modifiable_format() : workbook().create_format();
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format(new_format.number_format(number_format_, optional<bool>(true)));
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}
void cell::protection(const class protection &protection_)
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{
auto new_format = has_format() ? modifiable_format() : workbook().create_format();
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format(new_format.protection(protection_, optional<bool>(true)));
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}
template <>
XLNT_API std::string cell::value() const
{
return value<rich_text>().plain_text();
}
template <>
XLNT_API rich_text cell::value() const
{
if (data_type() == cell::type::shared_string)
{
return workbook().shared_strings(static_cast<std::size_t>(d_->value_numeric_));
}
return d_->value_text_;
}
bool cell::has_value() const
{
return d_->type_ != cell::type::empty;
}
std::string cell::to_string() const
{
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auto nf = computed_number_format();
switch (data_type())
{
case cell::type::empty:
return "";
case cell::type::date:
case cell::type::number:
return nf.format(value<double>(), base_date());
case cell::type::inline_string:
case cell::type::shared_string:
case cell::type::formula_string:
case cell::type::error:
return nf.format(value<std::string>());
case cell::type::boolean:
return value<double>() == 0.0 ? "FALSE" : "TRUE";
}
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return "";
}
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bool cell::has_format() const
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{
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return d_->format_.is_set();
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}
void cell::format(const class format new_format)
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{
if (has_format())
{
format().d_->references -= format().d_->references > 0 ? 1 : 0;
}
++new_format.d_->references;
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d_->format_ = new_format.d_;
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}
calendar cell::base_date() const
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{
return workbook().base_date();
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}
bool operator==(std::nullptr_t, const cell &cell)
{
return cell.data_type() == cell::type::empty;
}
bool operator==(const cell &cell, std::nullptr_t)
{
return nullptr == cell;
}
XLNT_API std::ostream &operator<<(std::ostream &stream, const xlnt::cell &cell)
{
return stream << cell.to_string();
}
void cell::value(const std::string &value_string, bool infer_type)
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{
value(value_string);
if (!infer_type || value_string.empty())
{
return;
}
if (value_string.front() == '=' && value_string.size() > 1)
{
formula(value_string);
return;
}
if (value_string.front() == '#' && value_string.size() > 1)
{
error(value_string);
return;
}
auto percentage = cast_percentage(value_string);
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if (percentage.first)
{
d_->value_numeric_ = percentage.second;
d_->type_ = cell::type::number;
number_format(xlnt::number_format::percentage());
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}
else
{
auto time = cast_time(value_string);
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if (time.first)
{
d_->type_ = cell::type::number;
number_format(number_format::date_time6());
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d_->value_numeric_ = time.second.to_number();
}
else
{
auto numeric = cast_numeric(value_string);
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if (numeric.first)
{
d_->value_numeric_ = numeric.second;
d_->type_ = cell::type::number;
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}
}
}
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}
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void cell::clear_format()
{
if (d_->format_.is_set())
{
format().d_->references -= format().d_->references > 0 ? 1 : 0;
d_->format_.clear();
}
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}
void cell::clear_style()
{
if (has_format())
{
modifiable_format().clear_style();
}
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}
void cell::style(const class style &new_style)
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{
auto new_format = has_format() ? format() : workbook().create_format();
new_format.border(new_style.border());
new_format.fill(new_style.fill());
new_format.font(new_style.font());
new_format.number_format(new_style.number_format());
format(new_format.style(new_style));
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}
void cell::style(const std::string &style_name)
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{
style(workbook().style(style_name));
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}
style cell::style()
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{
if (!has_format() || !format().has_style())
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{
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throw invalid_attribute();
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}
auto f = format();
return f.style();
}
const style cell::style() const
{
if (!has_format() || !format().has_style())
{
throw invalid_attribute();
}
return format().style();
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}
bool cell::has_style() const
{
return has_format() && format().has_style();
}
format cell::modifiable_format()
{
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if (!d_->format_.is_set())
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{
throw invalid_attribute();
}
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return xlnt::format(d_->format_.get());
}
const format cell::format() const
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{
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if (!d_->format_.is_set())
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{
throw invalid_attribute();
}
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return xlnt::format(d_->format_.get());
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}
alignment cell::alignment() const
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{
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return format().alignment();
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}
border cell::border() const
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{
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return format().border();
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}
fill cell::fill() const
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{
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return format().fill();
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}
font cell::font() const
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{
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return format().font();
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}
number_format cell::number_format() const
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{
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return format().number_format();
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}
protection cell::protection() const
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{
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return format().protection();
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}
bool cell::has_hyperlink() const
{
return d_->hyperlink_.is_set();
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}
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// comment
bool cell::has_comment()
{
return d_->comment_.is_set();
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}
void cell::clear_comment()
{
if (has_comment())
{
d_->parent_->comments_.erase(reference().to_string());
d_->comment_.clear();
}
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}
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class comment cell::comment()
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{
if (!has_comment())
{
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throw xlnt::exception("cell has no comment");
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}
return *d_->comment_.get();
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}
void cell::comment(const std::string &text, const std::string &author)
{
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comment(xlnt::comment(text, author));
}
void cell::comment(const std::string &text, const class font &comment_font, const std::string &author)
{
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comment(xlnt::comment(xlnt::rich_text(text, comment_font), author));
}
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void cell::comment(const class comment &new_comment)
{
if (has_comment())
{
*d_->comment_.get() = new_comment;
}
else
{
d_->parent_->comments_[reference().to_string()] = new_comment;
d_->comment_.set(&d_->parent_->comments_[reference().to_string()]);
}
// offset comment 5 pixels down and 5 pixels right of the top right corner of the cell
auto cell_position = anchor();
cell_position.first += static_cast<int>(width()) + 5;
cell_position.second += 5;
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d_->comment_.get()->position(cell_position.first, cell_position.second);
worksheet().register_comments_in_manifest();
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}
double cell::width() const
{
return worksheet().column_width(column());
}
double cell::height() const
{
return worksheet().row_height(row());
}
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} // namespace xlnt