kakoune/src/keys.hh
Maxime Coste d3374e7e5f Refactor mouse press/release handling to support 3 buttons
Change button to be an additional parameter instead of having separate
events for left/right buttons.

Fixes #3471
2020-06-28 19:48:55 +10:00

131 lines
3.1 KiB
C++

#ifndef keys_hh_INCLUDED
#define keys_hh_INCLUDED
#include "coord.hh"
#include "flags.hh"
#include "hash.hh"
#include "meta.hh"
#include "optional.hh"
#include "unicode.hh"
#include "vector.hh"
namespace Kakoune
{
struct Key
{
enum class MouseButton
{
Left,
Middle,
Right
};
enum class Modifiers : int
{
None = 0,
Control = 1 << 0,
Alt = 1 << 1,
Shift = 1 << 2,
MousePress = 1 << 3,
MouseRelease = 1 << 4,
MousePos = 1 << 5,
MouseButtonMask= 0b11 << 6,
Scroll = 1 << 8,
Resize = 1 << 9,
MenuSelect = 1 << 10,
};
enum NamedKey : Codepoint
{
// use UTF-16 surrogate pairs range
Backspace = 0xD800,
Delete,
Escape,
Return,
Up,
Down,
Left,
Right,
PageUp,
PageDown,
Home,
End,
Insert,
Tab,
F1,
F2,
F3,
F4,
F5,
F6,
F7,
F8,
F9,
F10,
F11,
F12,
FocusIn,
FocusOut,
Invalid,
};
Modifiers modifiers = {};
Codepoint key = {};
constexpr Key(Modifiers modifiers, Codepoint key)
: modifiers(modifiers), key(key) {}
constexpr Key(Codepoint key)
: modifiers(Modifiers::None), key(key) {}
constexpr Key() = default;
constexpr uint64_t val() const { return (uint64_t)modifiers << 32 | key; }
constexpr bool operator==(Key other) const { return val() == other.val(); }
constexpr bool operator!=(Key other) const { return val() != other.val(); }
constexpr bool operator<(Key other) const { return val() < other.val(); }
constexpr DisplayCoord coord() const { return {(int)((key & 0xFFFF0000) >> 16), (int)(key & 0x0000FFFF)}; }
constexpr MouseButton mouse_button() { return MouseButton{((int)modifiers & (int)Modifiers::MouseButtonMask) >> 6}; }
static Modifiers to_modifier(MouseButton button) { return Key::Modifiers{((int)button << 6) & (int)Modifiers::MouseButtonMask}; }
Optional<Codepoint> codepoint() const;
};
constexpr bool with_bit_ops(Meta::Type<Key::Modifiers>) { return true; }
using KeyList = Vector<Key, MemoryDomain::Mapping>;
class String;
class StringView;
KeyList parse_keys(StringView str);
String key_to_str(Key key);
StringView button_to_str(Key::MouseButton button);
Key::MouseButton str_to_button(StringView str);
constexpr Key shift(Key key)
{
return { key.modifiers | Key::Modifiers::Shift, key.key };
}
constexpr Key alt(Key key)
{
return { key.modifiers | Key::Modifiers::Alt, key.key };
}
constexpr Key ctrl(Key key)
{
return { key.modifiers | Key::Modifiers::Control, key.key };
}
constexpr Codepoint encode_coord(DisplayCoord coord) { return (Codepoint)(((int)coord.line << 16) | ((int)coord.column & 0x0000FFFF)); }
constexpr Key resize(DisplayCoord dim) { return { Key::Modifiers::Resize, encode_coord(dim) }; }
constexpr size_t hash_value(const Key& key) { return hash_values(key.modifiers, key.key); }
}
#endif // keys_hh_INCLUDED