private void OnDraw(CanvasControl sender, CanvasDrawEventArgs args)
{
if (_bitmap == null || _animation == null || _unloaded)
{
return;
}
args.DrawingSession.DrawImage(_bitmap, new Rect(0, 0, sender.Size.Width, sender.Size.Height));
if (_hideThumbnail)
{
_hideThumbnail = false;
FirstFrameRendered?.Invoke(this, EventArgs.Empty);
ElementCompositionPreview.SetElementChildVisual(this, null);
}
Monitor.Enter(_subscribeLock);
if (_unsubscribe)
{
_unsubscribe = false;
Monitor.Exit(_subscribeLock);
Subscribe(false);
}
else
{
Monitor.Exit(_subscribeLock);
}
}
protected override void DrawFrame(CanvasImageSource sender, CanvasDrawingSession args)
{
if (_bitmap == null || _animation == null || _unloaded)
{
return;
}
if (_flipped)
{
args.Transform = Matrix3x2.CreateScale(-1, 1, sender.Size.ToVector2() / 2);
}
if (sender.Size.Width >= _bitmap.Size.Width || sender.Size.Height >= _bitmap.Size.Height)
{
args.DrawImage(_bitmap,
new Rect(0, 0, sender.Size.Width, sender.Size.Height));
}
else
{
args.DrawImage(_bitmap,
new Rect(0, 0, sender.Size.Width, sender.Size.Height),
new Rect(0, 0, _bitmap.Size.Width, _bitmap.Size.Height), 1,
CanvasImageInterpolation.MultiSampleLinear);
}
if (_hideThumbnail)
{
_hideThumbnail = false;
FirstFrameRendered?.Invoke(this, EventArgs.Empty);
ElementCompositionPreview.SetElementChildVisual(this, null);
}
}
private void OnDraw(CanvasControl sender, CanvasDrawEventArgs args)
{
if (_bitmaps != null)
{
for (int i = 0; i < _bitmaps.Length; i++)
{
if (_bitmaps[i] != null)
{
args.DrawingSession.DrawImage(_bitmaps[i], new Rect(0, 0, sender.Size.Width, sender.Size.Height));
}
else if (i == 1)
{
return;
}
}
if (_hideThumbnail)
{
_hideThumbnail = false;
FirstFrameRendered?.Invoke(this, EventArgs.Empty);
}
}
Monitor.Enter(_subscribeLock);
if (_unsubscribe)
{
_unsubscribe = false;
Monitor.Exit(_subscribeLock);
Subscribe(false);
}
else
{
Monitor.Exit(_subscribeLock);
}
}
protected override void DrawFrame(CanvasImageSource sender, CanvasDrawingSession args)
{
if (_bitmap == null || _animation == null || _unloaded)
{
return;
}
if (_flipped)
{
args.Transform = Matrix3x2.CreateScale(-1, 1, sender.Size.ToVector2() / 2);
}
double width = _bitmap.Size.Width;
double height = _bitmap.Size.Height;
double ratioX = (double)sender.Size.Width / width;
double ratioY = (double)sender.Size.Height / height;
if (ratioX > ratioY)
{
width = sender.Size.Width;
height *= ratioX;
}
else
{
width *= ratioY;
height = sender.Size.Height;
}
var y = (sender.Size.Height - height) / 2;
var x = (sender.Size.Width - width) / 2;
if (sender.Size.Width >= _logicalSize.Width || sender.Size.Height >= _logicalSize.Height)
{
args.DrawImage(_bitmap,
new Rect(x, y, width, height));
}
else
{
args.DrawImage(_bitmap,
new Rect(x, y, width, height),
new Rect(0, 0, _bitmap.Size.Width, _bitmap.Size.Height), 1,
CanvasImageInterpolation.MultiSampleLinear);
}
if (_hideThumbnail == true)
{
_hideThumbnail = false;
FirstFrameRendered?.Invoke(this, EventArgs.Empty);
ElementCompositionPreview.SetElementChildVisual(this, null);
}
}
protected override void DrawFrame(CanvasImageSource sender, CanvasDrawingSession args)
{
var width = (double)_animation.PixelWidth;
var height = (double)_animation.PixelHeight;
if (_stretch == Stretch.UniformToFill)
{
double ratioX = (double)sender.Size.Width / width;
double ratioY = (double)sender.Size.Height / height;
if (ratioX > ratioY)
{
width = sender.Size.Width;
height *= ratioX;
}
else
{
width *= ratioY;
height = sender.Size.Height;
}
}
else if (_stretch == Stretch.Uniform)
{
double ratioX = (double)sender.Size.Width / width;
double ratioY = (double)sender.Size.Height / height;
if (ratioX <= ratioY)
{
width = sender.Size.Width;
height *= ratioX;
}
else
{
width *= ratioY;
height = sender.Size.Height;
}
}
var y = (sender.Size.Height - height) / 2;
var x = (sender.Size.Width - width) / 2;
if (width >= _bitmap.Size.Width || height >= _bitmap.Size.Height)
{
args.DrawImage(_bitmap,
new Rect(x, y, width, height));
}
else
{
args.DrawImage(_bitmap,
new Rect(x, y, width, height),
new Rect(0, 0, _bitmap.Size.Width, _bitmap.Size.Height), 1,
CanvasImageInterpolation.MultiSampleLinear);
}
if (_prevSeconds != _nextSeconds)
{
_prevSeconds = _nextSeconds;
PositionChanged?.Invoke(this, _nextSeconds);
}
if (_hideThumbnail == true && _thumbnail != null)
{
_hideThumbnail = false;
_thumbnail.Opacity = 0;
FirstFrameRendered?.Invoke(this, EventArgs.Empty);
ElementCompositionPreview.SetElementChildVisual(this, null);
}
}
