izapple2/softVideoSwitch.go

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package izapple2
import (
"image"
"image/color"
)
/*
Videx Soft Video Switch
See:
https://archive.org/details/videx-soft-video-switch
*/
// SoftVideoSwitch represents a Videx soft video switch
type SoftVideoSwitch struct {
card *CardVidex
}
// NewSoftVideoSwitch creates a new SoftVideoSwitch
func NewSoftVideoSwitch(card *CardVidex) *SoftVideoSwitch {
var vs SoftVideoSwitch
vs.card = card
return &vs
}
func (vs *SoftVideoSwitch) isActive() bool {
if vs == nil {
return false
}
isTextMode := vs.card.a.io.isSoftSwitchActive(ioFlagText)
ann0 := vs.card.a.io.isSoftSwitchActive(ioFlagAnnunciator0)
return isTextMode && ann0
}
func (vs *SoftVideoSwitch) BuildAlternateImage(light color.Color) *image.RGBA {
return vs.card.buildImage(light)
}
func (a *Apple2) SoftVideoSwitch() *SoftVideoSwitch {
return a.softVideoSwitch
}