/// <summary>
/// Gets the polygon points.
/// </summary>
/// <returns>a warper for helping handling polygon points or <c>null</c> if this is not a shape that have polygon points.</returns>
virtual public OoPolygonPointsObserver GetPolygonPointsObserver()
{
if (_ppObs == null && PolygonHelper.IsFreeform(Shape))
{
_ppObs = new OoPolygonPointsObserver(this);
}
return(_ppObs);
}
/// <summary>
/// Initializes a new instance of the <see cref="PolygonPointSelectedEventArgs"/> class.
/// </summary>
/// <param name="ppobs">polygon points observer.</param>
/// <param name="point">current selected point.</param>
public PolygonPointSelectedEventArgs(OoPolygonPointsObserver ppobs, tud.mci.tangram.util.PolyPointDescriptor point)
{
PolygonPoints = ppobs;
Point = point;
}
/// <summary>
/// Initializes a new instance of the <see cref="PolygonPointSelectedEventArgs"/> class with empty Members.
/// Should only be used to reset the listeners.
/// </summary>
public PolygonPointSelectedEventArgs()
{
PolygonPoints = null;
Point = new util.PolyPointDescriptor();
}
private void fire_PolygonPointSelected(OoPolygonPointsObserver ppobs, util.PolyPointDescriptor point)
{
if (PolygonPointSelected != null)
{
Task t = new Task(new Action(() => { try { PolygonPointSelected.Invoke(this, new PolygonPointSelectedEventArgs(ppobs, point)); } catch { } }));
t.Start();
}
}
/// <summary>
/// Gets a compressed textual description for Braille text output for a polygon point.
/// </summary>
/// <param name="pointsObs">The points observer.</param>
/// <returns>a string suitable for short Braille output.</returns>
public static string GetPointText(OoPolygonPointsObserver pointsObs)
{
if (pointsObs != null)
{
int index;
var point = pointsObs.Current(out index);
if (!point.Equals(default(PolyPointDescriptor)))
{
index += 1;
string nodeType = LL.GetTrans("tangram.oomanipulation.element_speaker.label." + point.Flag.ToString());
String text = LL.GetTrans("tangram.oomanipulation.element_speaker.text.point",
nodeType,
index,
pointsObs.Count,
(((float)point.X / 1000f)).ToString("0.##cm"),
(((float)point.Y / 1000f)).ToString("0.##cm")
);
//point.Flag.ToString() + " (" + index + "/" + pointsObs.Count + ") - x:" + point.X + " y:" + point.Y;
return text;
}
}
return String.Empty;
}
/// <summary>
/// Gets an audio description for auditory output for a polygon point.
/// </summary>
/// <param name="pointsObs">The points observer.</param>
/// <returns>a string suitable for auditory output.</returns>
public static string GetPointAudio(OoPolygonPointsObserver pointsObs)
{
if (pointsObs != null)
{
int index;
var point = pointsObs.Current(out index);
if (!point.Equals(default(PolyPointDescriptor)))
{
index += 1;
string nodeType = LL.GetTrans("tangram.oomanipulation.element_speaker.label." + point.Flag.ToString());
String audio = LL.GetTrans("tangram.oomanipulation.element_speaker.audio.point",
nodeType,
index,
pointsObs.Count
);
return audio;
}
}
return String.Empty;
}
/// <summary>
/// Returns the polygon point to audio and textual output receivers.
/// </summary>
/// <param name="pointsObs">The points obs.</param>
public void SpeakPolygonPoint(OoPolygonPointsObserver pointsObs)
{
if (pointsObs != null)
{
String audio = GetPointAudio(pointsObs);
String text = GetPointText(pointsObs);
sentAudioFeedback(audio);
sentTextFeedback(text);
}
}
/// <summary>
/// Gets the polygon points.
/// </summary>
/// <returns>a warper for helping handling polygon points or <c>null</c> if this is not a shape that have polygon points.</returns>
public OoPolygonPointsObserver GetPolygonPointsObserver()
{
if (_ppObs == null && PolygonHelper.IsFreeform(Shape))
{
_ppObs = new OoPolygonPointsObserver(this);
}
return _ppObs;
}