func Open() (*Fifo, error) {
var pipe Fifo
pipe.path = defaultPath
if config.Has("global.fifo") {
pipe.path, _ = config.String("config.fifo")
}
if _, err := os.Stat(pipe.path); err == nil {
err = os.Remove(pipe.path)
if err != nil {
return nil, err
}
}
if err := syscall.Mkfifo(pipe.path, 0777); err != nil {
return nil, err
}
fd, err := syscall.Open(pipe.path, syscall.O_RDONLY|syscall.O_NONBLOCK, 0777)
if err != nil {
return nil, err
}
pipe.fd = fdReader(fd)
pipe.rd = bufio.NewReader(pipe.fd)
pipe.cmds = make([]Command, 0, 5)
return &pipe, nil
}
func loadGCS(c *xgb.Conn, scr *xproto.ScreenInfo) error {
if !config.Has("global.list") {
return InvalidConfig("no global.list")
}
err := loadDefaultGC(c, scr)
if err != nil {
return err
}
list, _ := config.String("global.list")
entries := strings.Split(list, ",")
for _, entry := range entries {
err = loadGC(entry, c, scr)
if err != nil {
/* TODO Clean previously loaded gcs */
return err
}
}
return nil
}
func Open(c *xgb.Conn) (*Queue, error) {
var q Queue
q.conn = c
q.scrs = make([]*notif, screens.Count())
q.gravity = grTopRight
if gr, err := config.String("global.gravity"); err == nil {
switch gr {
case "top_left":
q.gravity = grTopLeft
case "top_right":
q.gravity = grTopRight
case "bottom_right":
q.gravity = grBottomRight
case "bottom_left":
q.gravity = grBottomLeft
}
}
q.vertPad = 15
if nb, err := config.Int("global.padding.vert"); err == nil {
q.vertPad = uint32(nb)
}
q.horiPad = 15
if nb, err := config.Int("global.padding.hori"); err == nil {
q.horiPad = uint32(nb)
}
q.space = 15
if nb, err := config.Int("global.padding.space"); err == nil {
q.space = uint32(nb)
}
q.mid = 0
return &q, nil
}
func loadGC(name string, c *xgb.Conn, scr *xproto.ScreenInfo) error {
var gc gcontext
/* Foreground GC */
id, err := xproto.NewGcontextId(c)
if err != nil {
return err
}
var mask uint32 = xproto.GcForeground | xproto.GcBackground |
xproto.GcLineWidth | xproto.GcFont
values := defaultGCValues(c)
{
cl, e := config.String(name + ".gc.fg")
if e == nil {
values[0], e = openColor(c, scr, readColor(cl))
if e != nil {
return e
}
}
cl, e = config.String(name + ".gc.bg")
if e == nil {
values[1], e = openColor(c, scr, readColor(cl))
if e != nil {
return e
}
}
wd, e := config.Int(name + ".gc.width")
if e == nil {
values[2] = uint32(wd)
}
cl, e = config.String(name + ".gc.font")
if e == nil {
fn, e := openFont(c, cl)
if e != nil {
return e
}
values[3] = uint32(fn)
}
}
err = xproto.CreateGCChecked(c, id, xproto.Drawable(scr.Root), mask, values).Check()
if err != nil {
return err
}
gc.fg = id
gc.font = xproto.Font(values[3])
gc.border = values[2]
/* Query the font height */
{
rep, e := xproto.QueryFont(c, xproto.Fontable(gc.font)).Reply()
if e != nil {
return e
}
gc.fontHeight = uint32(rep.FontAscent) + uint32(rep.FontDescent)
gc.fontUp = uint32(rep.FontAscent)
}
/* Background GC */
id, err = xproto.NewGcontextId(c)
if err != nil {
return err
}
mask = xproto.GcForeground | xproto.GcBackground | xproto.GcLineWidth
values[0], values[1] = values[1], values[0]
err = xproto.CreateGCChecked(c, id, xproto.Drawable(scr.Root), mask, values).Check()
if err != nil {
return err
}
gc.bg = id
/* Border GC */
id, err = xproto.NewGcontextId(c)
if err != nil {
return err
}
{
cl, e := config.String(name + ".gc.bc")
if e == nil {
values[0], e = openColor(c, scr, readColor(cl))
if e != nil {
return e
}
} else {
values[0] = defaultgc.bc
}
}
values[1] = values[0]
err = xproto.CreateGCChecked(c, id, xproto.Drawable(scr.Root), mask, values).Check()
if err != nil {
return err
}
gc.bc = id
/* Width */
{
wd, e := config.Int(name + ".width")
if e == nil {
gc.width = uint32(wd)
} else {
gc.width = defaultgc.width
}
}
ctxs[name] = &gc
return nil
}
func loadDefaultGC(c *xgb.Conn, scr *xproto.ScreenInfo) error {
var font string
if config.Has("global.gc.font") {
font, _ = config.String("global.gc.font")
} else {
font = defaultFont
}
fnt, err := openFont(c, font)
if err != nil {
return err
}
defaultgc.font = uint32(fnt)
if config.Has("global.width") {
wd, _ := config.Int("global.width")
defaultgc.width = uint32(wd)
} else {
defaultgc.width = 500
}
if config.Has("global.gc.width") {
wd, _ := config.Int("global.gc.width")
defaultgc.border = uint32(wd)
} else {
defaultgc.border = 5
}
var cl color
if config.Has("global.gc.fg") {
str, _ := config.String("global.gc.fg")
cl = readColor(str)
} else {
cl = color{255, 255, 255}
}
defaultgc.fg, err = openColor(c, scr, cl)
if err != nil {
return err
}
if config.Has("global.gc.bg") {
str, _ := config.String("global.gc.bg")
cl = readColor(str)
} else {
cl = color{0, 0, 0}
}
defaultgc.bg, err = openColor(c, scr, cl)
if err != nil {
return err
}
if config.Has("global.gc.bc") {
str, _ := config.String("global.gc.bc")
cl = readColor(str)
} else {
cl = color{255, 255, 255}
}
defaultgc.bc, err = openColor(c, scr, cl)
if err != nil {
return err
}
return nil
}