func (a Arch) drawLocalChannel(ctxt interface{}, ch pf.ChannelIf) {
switch ctxt.(type) {
case *cairo.Context:
context := ctxt.(*cairo.Context)
link := ch.Link()
if ch.Process().Arch().Name() != a.Name() {
log.Fatal("Arch.drawLocalChannel: channel not in arch %s\n", a.Name())
}
if link.Process().Arch().Name() == a.Name() {
var r, g, b float64
p1 := a.channelMap[ch]
p2 := a.channelMap[link]
if p1.IsSelected() || p2.IsSelected() {
r, g, b, _ = ColorOption(SelectChannelLine)
} else if p1.IsHighlighted() || p2.IsHighlighted() {
r, g, b, _ = ColorOption(HighlightChannelLine)
} else {
r, g, b, _ = ColorOption(NormalChannelLine)
}
context.SetLineWidth(2)
context.SetSourceRGB(r, g, b)
var pos1, pos2 image.Point
if ch.Direction() == gr.InPort {
pos1 = link.ModePosition(a.mode).Add(image.Point{procPortWidth, procPortHeight}.Div(2))
pos2 = ch.ModePosition(a.mode).Add(image.Point{procPortWidth, procPortHeight}.Div(2))
} else {
pos1 = ch.ModePosition(a.mode).Add(image.Point{procPortWidth, procPortHeight}.Div(2))
pos2 = link.ModePosition(a.mode).Add(image.Point{procPortWidth, procPortHeight}.Div(2))
}
DrawArrow(context, pos1, pos2)
}
}
}
