private void canvas_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
if (!IsSelectable)
{
return;
}
MainCanvas.CaptureMouse(); //Capture mouse to receive events even if the pointer is outside the control
//Start dragging:
_draggingState.StartDragging(CanvasScoreRenderer.ConvertPoint(e.GetPosition(MainCanvas)));
//Check if element under cursor is staff element:
FrameworkElement element = e.OriginalSource as FrameworkElement;
if (element == null)
{
return;
}
if (!Renderer.OwnershipDictionary.ContainsKey(element))
{
return;
}
//Set selected element:
Select(Renderer.OwnershipDictionary[element]);
}
private void RenderOnCanvas(Measure measure)
{
if (Renderer == null)
{
Renderer = new CanvasScoreRenderer(MainCanvas);
}
var beamGroupsForThisMeasure = measure.Staff.BeamGroups.Where(bg => bg.Members.Any(m => m.Measure == measure));
foreach (var beamGroup in beamGroupsForThisMeasure)
{
var frameworkElements = Renderer.OwnershipDictionary.Where(d => d.Value == beamGroup).Select(d => d.Key).ToList();
frameworkElements.RemoveAllFrom(Renderer.Canvas);
}
foreach (var element in measure.Elements.Where(e => !(e is Barline)))
{
var note = element as Note;
if (note != null)
{
foreach (var lyric in note.Lyrics)
{
var lyricsFrameworkElements = Renderer.OwnershipDictionary.Where(d => d.Value == lyric).Select(d => d.Key).ToList();
lyricsFrameworkElements.RemoveAllFrom(Renderer.Canvas);
}
}
var frameworkElements = Renderer.OwnershipDictionary.Where(d => d.Value == element).Select(d => d.Key).ToList();
frameworkElements.RemoveAllFrom(Renderer.Canvas);
}
var brush = Foreground as SolidColorBrush;
if (brush != null)
{
Renderer.Settings.DefaultColor = Renderer.ConvertColor(brush.Color);
}
Renderer.Render(measure);
if (SelectedElement != null)
{
ColorElement(SelectedElement, Colors.Magenta);
}
InvalidateMeasure();
}
private void RenderOnCanvas(Score score)
{
_innerScore = score;
if (score == null)
{
return;
}
score.MeasureInvalidated -= Score_MeasureInvalidated;
score.ScoreInvalidated -= Score_ScoreInvalidated;
MainCanvas.Children.Clear();
Renderer = new CanvasScoreRenderer(MainCanvas);
Renderer.Settings.RenderingMode = RenderingMode;
Renderer.Settings.CurrentPage = CurrentPage;
var brush = Foreground as SolidColorBrush;
if (brush != null)
{
Renderer.Settings.DefaultColor = Renderer.ConvertColor(brush.Color);
}
if (score.Staves.Count > 0)
{
Renderer.Settings.PageWidth = score.Staves[0].Elements.Count * 26;
}
Renderer.Render(score);
if (SelectedElement != null)
{
ColorElement(SelectedElement, Colors.Magenta);
}
InvalidateMeasure();
score.MeasureInvalidated += Score_MeasureInvalidated;
score.ScoreInvalidated += Score_ScoreInvalidated;
}
private void MainCanvas_MouseMove(object sender, MouseEventArgs e)
{
if (!IsSelectable)
{
return;
}
if (!_draggingState.IsDragging || _innerScore == null)
{
return;
}
Point currentPosition = e.GetPosition(MainCanvas);
var strategy = DraggingStrategy.For(SelectedElement);
if (strategy != null)
{
strategy.Drag(Renderer, SelectedElement, _draggingState, CanvasScoreRenderer.ConvertPoint(currentPosition));
}
if (InvalidatingMode == InvalidatingModes.RedrawAllScore)
{
RenderOnCanvas(_innerScore);
}
}