func (v *ScaledView) init() (err error) {
v.layoutBox, err = gtk.BoxNew(gtk.ORIENTATION_VERTICAL, 0)
if err != nil {
return
}
const (
initialWidth = 800
initialHeight = 600
)
v.scene, err = ScrolledViewNew(initialWidth, initialHeight)
if err != nil {
return
}
var adj *gtk.Adjustment
adj, err = gtk.AdjustmentNew(0.0, scaleMin, scaleMax, scaleStep, scalePStep, scalePage)
v.scaler, err = gtk.ScaleNew(gtk.ORIENTATION_HORIZONTAL, adj)
if err != nil {
return
}
v.scaler.Connect("value-changed", scalerValueCallback, v)
v.layoutBox.Add(v.scene.Widget())
v.layoutBox.Add(v.scaler)
return
}
// Scale creates a *gtk.Scale.
func Scale(orientation gtk.Orientation, adjustment *gtk.Adjustment) *gtk.Scale {
w, _ := gtk.ScaleNew(orientation, adjustment)
return w
}