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devicescale: Implement scaling for Gnome and Cinnamon (#344)

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This commit is contained in:
Hajime Hoshi 2018-01-03 23:20:28 +09:00
parent 91105420fb
commit edaaa178b8
1 changed files with 52 additions and 1 deletions
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53
internal/devicescale/devicescale_xwindow.go
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@ -18,7 +18,58 @@
package devicescale
import (
"os/exec"
"regexp"
"strconv"
)
var gsettingsRe = regexp.MustCompile(`\Auint32 (\d+)\s*\z`)
func gnomeScale() float64 {
out, err := exec.Command("gsettings", "get", "org.gnome.desktop.interface", "scaling-factor").Output()
if err != nil {
if err == exec.ErrNotFound {
return 0
}
if _, ok := err.(*exec.ExitError); ok {
return 0
}
panic(err)
}
m := gsettingsRe.FindStringSubmatch(string(out))
s, err := strconv.Atoi(m[1])
if err != nil {
return 0
}
return float64(s)
}
func cinnamonScale() float64 {
out, err := exec.Command("gsettings", "get", "org.cinnamon.desktop.interface", "scaling-factor").Output()
if err != nil {
if err == exec.ErrNotFound {
return 0
}
if _, ok := err.(*exec.ExitError); ok {
return 0
}
panic(err)
}
m := gsettingsRe.FindStringSubmatch(string(out))
s, err := strconv.Atoi(m[1])
if err != nil {
return 0
}
return float64(s)
}
func impl() float64 {
// TODO: Implement this
if s := gnomeScale(); s != 0 {
return s
}
if s := cinnamonScale(); s != 0 {
return s
}
return 1
}