1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
package drw // import "hhvn.uk/hbspbar/drw"
import (
"os"
"image"
"image/color"
"hhvn.uk/hbspbar/config"
"hhvn.uk/hbspbar/common"
"github.com/jezek/xgb"
"github.com/jezek/xgb/xproto"
"github.com/jezek/xgbutil"
"github.com/jezek/xgbutil/icccm"
"github.com/jezek/xgbutil/ewmh"
"github.com/jezek/xgbutil/xgraphics"
"github.com/BurntSushi/freetype-go/freetype/truetype"
)
type eventwrap struct {
Ev xgb.Event
Err error
}
var InitErr error
var Events chan *eventwrap
var xc *xgb.Conn
var xu *xgbutil.XUtil
var screen *xproto.ScreenInfo
var font *truetype.Font
func init() {
var err error
xc, err = xgb.NewConn()
if err != nil {
InitErr = err
return
}
xu, err = xgbutil.NewConnXgb(xc)
if err != nil {
InitErr = err
return
}
setup := xproto.Setup(xc)
screen = setup.DefaultScreen(xc)
read, err := os.Open(config.Font)
if err != nil {
InitErr = common.Perror("os.Open", err)
return
}
font, err = xgraphics.ParseFont(read)
if err != nil {
InitErr = common.Perror("xgraphics.ParseFont", err)
return
}
Events := make(chan *eventwrap)
go func() { for {
ev, err := xc.WaitForEvent()
w := eventwrap{ev, err}
Events <- &w
}}()
}
func int2rgb(argb uint32) (color.RGBA) {
return color.RGBA{
B: uint8( argb & 0x000000ff),
G: uint8((argb & 0x0000ff00) >> 8),
R: uint8((argb & 0x00ff0000) >> 16),
A: uint8((argb & 0xff000000) >> 24) }
}
func rgb2int(c color.Color) uint32 {
r, g, b, a := c.RGBA()
r /= 256
g /= 256
b /= 256
a /= 256
var ret uint32 = 0
ret |= (a << 24)
ret |= (r << 16)
ret |= (g << 8)
ret |= b
return ret
}
type Window struct {
id xproto.Window
}
func WindowCreate(x, y, w, h uint) (*Window, error) {
var win Window
var err error
win.id, err = xproto.NewWindowId(xc)
if err != nil {
return nil, common.Perror("xproto.NewWindowId", err)
}
xproto.CreateWindow(xc, screen.RootDepth, win.id, screen.Root,
int16(x), int16(y), uint16(w), uint16(h), 0,
xproto.WindowClassInputOutput, screen.RootVisual,
xproto.CwBackPixel|xproto.CwEventMask, []uint32{
config.Bg,
xproto.EventMaskStructureNotify })
class := icccm.WmClass{"hbspbar", "hbspbar"}
icccm.WmClassSet(xu, win.id, &class)
ewmh.WmWindowTypeSet(xu, win.id, []string{"_NET_WM_WINDOW_TYPE_DOCK"})
ewmh.WmStateSet(xu, win.id, []string{"_NET_WM_STATE_STICKY", "_NET_WM_STATE_ABOVE"})
err = xproto.MapWindowChecked(xc, win.id).Check()
if err != nil {
return nil, common.Perror("xproto.MapWindow", err)
}
return &win, nil
}
func (w *Window) Paint(i image.Image) {
xgr := xgraphics.NewConvert(xu, i)
xgr.XSurfaceSet(w.id)
xgr.XDraw()
xgr.XPaint(w.id)
}
func (w *Window) Destroy() {
xproto.DestroyWindow(xc, w.id)
}
|