kakoune/src/coord.hh
Maxime Coste 35559b65dd Support codepoints of variable width
Add a ColumnCount type and use it in place of CharCount whenever
more appropriate, take column size of codepoints into account for
vertical movements and docstring wrapping.

Fixes #811
2016-10-01 13:45:00 +01:00

131 lines
3.4 KiB
C++

#ifndef coord_hh_INCLUDED
#define coord_hh_INCLUDED
#include "units.hh"
#include "hash.hh"
namespace Kakoune
{
template<typename EffectiveType, typename LineType, typename ColumnType>
struct LineAndColumn
{
LineType line;
ColumnType column;
[[gnu::always_inline]]
constexpr LineAndColumn(LineType line = 0, ColumnType column = 0)
: line(line), column(column) {}
[[gnu::always_inline]]
constexpr EffectiveType operator+(EffectiveType other) const
{
return {line + other.line, column + other.column};
}
[[gnu::always_inline]]
EffectiveType& operator+=(EffectiveType other)
{
line += other.line;
column += other.column;
return *static_cast<EffectiveType*>(this);
}
[[gnu::always_inline]]
constexpr EffectiveType operator-(EffectiveType other) const
{
return {line - other.line, column - other.column};
}
[[gnu::always_inline]]
EffectiveType& operator-=(EffectiveType other)
{
line -= other.line;
column -= other.column;
return *static_cast<EffectiveType*>(this);
}
[[gnu::always_inline]]
constexpr bool operator< (EffectiveType other) const
{
return (line != other.line) ? line < other.line
: column < other.column;
}
[[gnu::always_inline]]
constexpr bool operator<= (EffectiveType other) const
{
return (line != other.line) ? line < other.line
: column <= other.column;
}
[[gnu::always_inline]]
constexpr bool operator> (EffectiveType other) const
{
return (line != other.line) ? line > other.line
: column > other.column;
}
[[gnu::always_inline]]
constexpr bool operator>= (EffectiveType other) const
{
return (line != other.line) ? line > other.line
: column >= other.column;
}
[[gnu::always_inline]]
constexpr bool operator== (EffectiveType other) const
{
return line == other.line and column == other.column;
}
[[gnu::always_inline]]
constexpr bool operator!= (EffectiveType other) const
{
return line != other.line or column != other.column;
}
friend size_t hash_value(const EffectiveType& val)
{
return hash_values(val.line, val.column);
}
};
struct BufferCoord : LineAndColumn<BufferCoord, LineCount, ByteCount>
{
[[gnu::always_inline]]
constexpr BufferCoord(LineCount line = 0, ByteCount column = 0)
: LineAndColumn(line, column) {}
};
struct DisplayCoord : LineAndColumn<DisplayCoord, LineCount, ColumnCount>
{
[[gnu::always_inline]]
constexpr DisplayCoord(LineCount line = 0, ColumnCount column = 0)
: LineAndColumn(line, column) {}
static constexpr const char* option_type_name = "coord";
};
struct BufferCoordAndTarget : BufferCoord
{
[[gnu::always_inline]]
constexpr BufferCoordAndTarget(LineCount line = 0, ByteCount column = 0, ColumnCount target = -1)
: BufferCoord(line, column), target(target) {}
[[gnu::always_inline]]
constexpr BufferCoordAndTarget(BufferCoord coord, ColumnCount target = -1)
: BufferCoord(coord), target(target) {}
ColumnCount target;
};
inline size_t hash_value(const BufferCoordAndTarget& val)
{
return hash_values(val.line, val.column, val.target);
}
}
#endif // coord_hh_INCLUDED