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/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#pragma once
#include "DNA_space_types.h"
#include "BLI_string_ref.hh"
#include "spreadsheet_cell_value.hh"
namespace blender::ed::spreadsheet {
/**
* This represents a column in a spreadsheet. It has a name and provides a value for all the cells
* in the column.
*/
class ColumnValues {
protected:
eSpreadsheetColumnValueType type_;
std::string name_;
int size_;
public:
ColumnValues(const eSpreadsheetColumnValueType type, std::string name, const int size)
: type_(type), name_(std::move(name)), size_(size)
{
}
virtual ~ColumnValues() = default;
virtual void get_value(int index, CellValue &r_cell_value) const = 0;
eSpreadsheetColumnValueType type() const
{
return type_;
}
StringRefNull name() const
{
return name_;
}
int size() const
{
return size_;
}
/* The default width of newly created columns, in UI units. */
float default_width = 0.0f;
};
/* Utility class for the function below. */
template<typename GetValueF> class LambdaColumnValues : public ColumnValues {
private:
GetValueF get_value_;
public:
LambdaColumnValues(const eSpreadsheetColumnValueType type,
std::string name,
int size,
GetValueF get_value)
: ColumnValues(type, std::move(name), size), get_value_(std::move(get_value))
{
}
void get_value(int index, CellValue &r_cell_value) const final
{
get_value_(index, r_cell_value);
}
};
/* Utility function that simplifies creating a spreadsheet column from a lambda function. */
template<typename GetValueF>
std::unique_ptr<ColumnValues> column_values_from_function(const eSpreadsheetColumnValueType type,
std::string name,
const int size,
GetValueF get_value,
const float default_width = 0.0f)
{
std::unique_ptr<ColumnValues> column_values = std::make_unique<LambdaColumnValues<GetValueF>>(
type, std::move(name), size, std::move(get_value));
column_values->default_width = default_width;
return column_values;
}
} // namespace blender::ed::spreadsheet
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