home/src/keys.hh
Frank LENORMAND b1f5639d8c src: Add support for right click events
The current implementation treats left mouse button clicks as a
generic "mouse press" modifier, this commit extends the list of
modifiers by adding a "right mouse click" one.

The proper way to implement this would be to ship the coordinates
of mouse key press events in each `Key` object, and pass whichever
button was clicked as a codepoint value (instead of coordinates
currently), but this would require more work.

This commit allows:

* right clicks to set the cursor of the main selection
* control-right clicks to merge all the selections, and then set
  its cursor

Fixes #843
2018-12-20 14:32:18 +03:00

125 lines
2.9 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 Modifiers : int
{
None = 0,
Control = 1 << 0,
Alt = 1 << 1,
Shift = 1 << 2,
MousePressLeft = 1 << 3,
MousePressRight = 1 << 4,
MouseReleaseLeft = 1 << 5,
MouseReleaseRight = 1 << 6,
MousePos = 1 << 7,
MouseWheelDown = 1 << 8,
MouseWheelUp = 1 << 9,
MouseEvent = MousePressLeft | MousePressRight |
MouseReleaseLeft | MouseReleaseRight |
MousePos | MouseWheelDown | MouseWheelUp,
Resize = 1 << 10,
MenuSelect = 1 << 11,
};
enum NamedKey : Codepoint
{
// use UTF-16 surrogate pairs range
Backspace = 0xD800,
Delete,
Escape,
Return,
Up,
Down,
Left,
Right,
PageUp,
PageDown,
Home,
End,
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)}; }
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);
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