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Changed the meaning of the Modifiers keys to be positional, added Super, and pinned down Meta vs. Alt. All but the Meta/Alt one were done after discussion in #go-nuts about how to handle differences in user expectation properly. This is the portable interface only; each platform implementation comes next.

This commit is contained in:
Pietro Gagliardi 2014-05-16 18:16:25 -04:00
parent da2bd70192
commit 13397f91ee
2 changed files with 14 additions and 9 deletions
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6
area.go
View File

@ -277,10 +277,10 @@ func (e KeyEvent) EffectiveKey() byte {
// As such, what KeyEvents get sent if the user does something unusual with both of a certain modifier key at once is (presently; TODO) undefined.
type Modifiers uintptr
const (
Ctrl Modifiers = 1 << iota // the canonical Ctrl keys ([TODO] on Mac OS X, Control on others)
Alt // the canonical Alt keys ([TODO] on Mac OS X, Meta on Unix systems, Alt on others)
Ctrl Modifiers = 1 << iota // the keys labelled Ctrl or Control on all platforms
Alt // the keys labelled Alt or Option or Meta on all platforms
Shift // the Shift keys
// TODO add Super
Super // the Super keys on platforms that have one, or the Windows keys on Windows, or the Command keys on Mac OS X
)
func checkAreaSize(width int, height int, which string) {

17
test/kbtest.go
View File

@ -64,9 +64,9 @@ func (a *keyboardArea) Key(e KeyEvent) (handled bool, repaint bool) {
if (m & Shift) != 0 {
markkey(a.kbd, modpoints[Shift], m &^ Shift)
}
// if (m & Super) != 0 {
// markkey(a.kbd, modpoints[Super], m &^ Super)
// }
if (m & Super) != 0 {
markkey(a.kbd, modpoints[Super], m &^ Super)
}
default:
return false, false
}
@ -86,9 +86,9 @@ func kbTest() {
var (
keywid = 36
keyht = 24
// 8 rects per key, 4x2 grid
// 16 rects per key, 4x4 grid
rectsperrow = 4
rectspercol = 2
rectspercol = 4
keyrectwid = keywid / rectsperrow
keyrectht = keyht / rectspercol
_keyrect = image.Rect(0, 0, keyrectwid, keyrectht)
@ -103,6 +103,11 @@ func modcolor(m Modifiers) *image.Uniform {
r := (m & 1) * 255; m >>= 1
g := (m & 1) * 255; m >>= 1
b := (m & 1) * 255; m >>= 1
if (m & 1) == 1 { // Super
r /= 2
g /= 2
b /= 2
}
return image.NewUniform(color.NRGBA{byte(r), byte(g), byte(b), 255})
}
@ -206,7 +211,7 @@ var modpoints = map[Modifiers]image.Point{
Ctrl: image.Pt(4, 199),
Alt: image.Pt(113, 199),
Shift: image.Pt(4, 159),
// Super: image.Pt(61, 199),
Super: image.Pt(61, 199),
}
// source: http://openclipart.org/image/800px/svg_to_png/154537/1312973798.png (medium image) via http://openclipart.org/detail/154537/us-english-keyboard-layout-v0.1-by-nitiraseem