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package gui
import (
"fmt"
"github.com/twstrike/gotk3adapter/gtki"
"github.com/twstrike/gotk3adapter/pangoi"
)
type displaySettings struct {
fontSize uint
defaultFontSize uint
provider gtki.CssProvider
}
func (ds *displaySettings) defaultSettingsOn(w gtki.Widget) {
doInUIThread(func() {
styleContext, _ := w.GetStyleContext()
styleContext.AddProvider(ds.provider, 9999)
})
}
func (ds *displaySettings) unifiedBackgroundColor(w gtki.Widget) {
doInUIThread(func() {
styleContext, _ := w.GetStyleContext()
styleContext.AddProvider(ds.provider, 9999)
styleContext.AddClass("currentBackgroundColor")
})
}
func (ds *displaySettings) control(w gtki.Widget) {
doInUIThread(func() {
styleContext, _ := w.GetStyleContext()
styleContext.AddProvider(ds.provider, 9999)
styleContext.AddClass("currentFontSetting")
})
}
func (ds *displaySettings) increaseFontSize() {
ds.fontSize++
ds.update()
}
func (ds *displaySettings) decreaseFontSize() {
ds.fontSize--
ds.update()
}
func (ds *displaySettings) update() {
css := fmt.Sprintf(`
.currentFontSetting {
font-size: %dpx;
}
.currentBackgroundColor {
background-color: #fff;
}
`, ds.defaultFontSize, ds.fontSize)
doInUIThread(func() {
ds.provider.LoadFromData(css)
})
}
func newDisplaySettings() *displaySettings {
ds := &displaySettings{}
prov, _ := g.gtk.CssProviderNew()
ds.provider = prov
ds.defaultFontSize = 12
return ds
}
func getFontSizeFrom(w gtki.Widget) uint {
styleContext, _ := w.GetStyleContext()
property, _ := styleContext.GetProperty2("font", gtki.STATE_FLAG_NORMAL)
fontDescription := property.(pangoi.FontDescription)
return uint(fontDescription.GetSize() / pangoi.PANGO_SCALE)
}
func detectCurrentDisplaySettingsFrom(w gtki.Widget) *displaySettings {
ds := newDisplaySettings()
ds.fontSize = getFontSizeFrom(w)
return ds
}
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