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|
package mavigator
package cockpit
import org.scalajs.dom
import org.scalajs.dom.html
import scalatags.JsDom.all._
import util.Page
trait Instruments { page: Page =>
trait Instrument[A] {
def element: html.Element
def update(newValue: A): Unit
}
/** Common behaviour for svg-based instruments. */
abstract class SvgInstrument[A](
path: String
) extends Instrument[A] {
override def element: html.Element = objectElement
/** SVG object element that contains the rendered instrument */
lazy val objectElement: html.Object = SvgInstrument.svgObject(path)
/** Retrieves an element of the underlying SVG document by ID. */
protected def part(id: String): html.Element =
objectElement.contentDocument.getElementById(id).asInstanceOf[html.Element]
/** Movable parts of the instrument */
protected def moveable: Seq[html.Element]
/** Called when element has been loaded. */
private def load(event: dom.Event): Unit = {
for (part <- moveable) {
//part.style.transition = "transform 300ms ease"
}
}
element.addEventListener("load", (e: dom.Event) => load(e))
}
/** Contains helpers for SVG instruments. */
object SvgInstrument {
/** Retrieves an SVG object element by its instrument's name. */
def svgObject(path: String): html.Object = {
val fullPath = page.asset("images/" + path)
`object`(`type` := "image/svg+xml", "data".attr := fullPath, width := 100.pct)(
"Error loading instrument " + fullPath).render
}
/** Applies translation styling to an element. */
def translate(elem: html.Element, x: Int, y: Int): Unit = {
elem.style.transform = "translate(" + x + "px, " + y + "px)";
}
/** Applies rotation styling to an element. */
def rotate(elem: html.Element, rad: Double): Unit = {
elem.style.transform = "rotate(" + rad + "rad)";
}
}
lazy val attitudeOverlay = new SvgInstrument[(Float, Float)]("hud/attitude.svg") {
override def element = div(`class`:="hud-overlay")(objectElement).render
private lazy val pitchPart = part("pitch")
private lazy val rollPart = part("roll")
override lazy val moveable = Seq(pitchPart, rollPart)
override def update(pitchRoll: (Float, Float)) = {
import SvgInstrument._
val (pitch, roll) = pitchRoll
translate(pitchPart, 0, (pitch * 180 / math.Pi * 10).toInt) // 1deg === 10px
rotate(rollPart, -roll)
}
}
lazy val horizonOverlay = new SvgInstrument[(Float, Float)]("hud/horizon.svg") {
import SvgInstrument._
override def element = div(`class`:="hud-overlay")(objectElement).render
lazy val rollPart = part("roll")
lazy val pitchPart = part("pitch")
lazy override val moveable = Seq(rollPart, pitchPart)
override def update(pitchRoll: (Float, Float)) = {
val (pitch, roll) = pitchRoll
val t = (pitch * 180 / math.Pi * 10).toInt // 1deg === 10px
SvgInstrument.rotate(rollPart, -roll)
SvgInstrument.translate(pitchPart, 0, t)
}
}
val overlayStyle = """
|.hud-overlay {
| position: absolute;
| left: 0;
| right: 0;
| top: 0;
| bottom: 0;
|
| display: flex;
| flex-direction: row;
| justify-content: center;
| align-items: center;
|}
|.hud-overlay > * {
| flex: 1 1 0;
| width: 100%;
| height: 100%;
| max-width: 100%;
| max-height: 100%;
|}""".stripMargin
def mode(name: String, kind: String, on: Boolean = false) = {
div(`class` := s"mode $kind ${if (!on) "off"}")(name)
}
//TODO make these into real instruments and lazy vals
def modes = div(style := "float: right;")(
mode("LINK", "danger", true),
mode("BAT", "warning", true),
mode("GPS", "warning", true),
mode("STABILIZED", "info", true)
)
val modeStyle = """
.mode {
display: inline-block;
box-sizing: border-box;
text-decoration: normal;
margin-right: 5px;
padding: 5px;
}
.mode.danger {
color: #d9534f;
text-shadow: 0 0 5px #d9534f;
animation: danger-blink 0.5s linear infinite;
-webkit-animation: danger-blink 0.5s linear infinite;
}
.mode.warning {
color: #f0ad4e;
text-shadow: 0 0 5px #f0ad4e;
}
.mode.info {
color: #5bc0de;
text-shadow: 0 0 5px #5bc0de;
}
.mode.success {
color: #5cb85c;
text-shadow: 0 0 5px #5cb85c;
}
.mode.off {
color: #e6e6e6;
text-shadow: none;
animation: none;
-webkit-animation: none;
}
"""
def instrumentStyles: Seq[String] = Seq(overlayStyle, modeStyle)
}
|
