//protected override SizeRequest OnSizeRequest(double widthConstraint, double heightConstraint)
//{
// return new SizeRequest(new Size(widthConstraint, heightConstraint));
//}
private static void XmlSourceChanged(BindableObject obj, string oldValue, string newValue)
{
NoteViewer viewer = obj as NoteViewer;
if (string.IsNullOrWhiteSpace(newValue))
{
if (!string.IsNullOrWhiteSpace(oldValue))
{
viewer.Children.Clear();
}
return;
}
XDocument xmlDocument = XDocument.Parse(newValue);
//Apply transformations:
if (viewer.XmlTransformations != null)
{
foreach (var transformation in viewer.XmlTransformations)
{
xmlDocument = transformation.Parse(xmlDocument);
}
}
MusicXmlParser parser = new MusicXmlParser();
var score = parser.Parse(xmlDocument);
score.MeasureInvalidated -= viewer.Score_MeasureInvalidated;
viewer.RenderOnCanvas(score);
score.MeasureInvalidated += viewer.Score_MeasureInvalidated;
}
private static void ScoreSourceChanged(BindableObject obj, Score oldValue, Score newValue)
{
NoteViewer viewer = obj as NoteViewer;
if (oldValue != null)
{
oldValue.MeasureInvalidated -= viewer.Score_MeasureInvalidated;
}
if (newValue == null)
{
return;
}
newValue.MeasureInvalidated -= viewer.Score_MeasureInvalidated;
viewer.RenderOnCanvas(newValue);
newValue.MeasureInvalidated += viewer.Score_MeasureInvalidated;
}
