public override void DrawLayer(BitmapCanvas canvas, Matrix3X3 parentMatrix, byte parentAlpha)
{
var bitmap = Bitmap;
if (bitmap == null)
{
return;
}
_paint.Alpha = parentAlpha;
canvas.Save();
canvas.Concat(parentMatrix);
RectExt.Set(ref _src, 0, 0, PixelWidth, PixelHeight);
RectExt.Set(ref _dst, 0, 0, (int)(PixelWidth * _density), (int)(PixelHeight * _density));
canvas.DrawBitmap(bitmap, _src, _dst, _paint);
canvas.Restore();
}
public override void DrawLayer(BitmapCanvas canvas, Matrix3X3 parentMatrix, byte parentAlpha)
{
canvas.Save();
if (!_lottieDrawable.UseTextGlyphs())
{
canvas.SetMatrix(parentMatrix);
}
var documentData = _textAnimation.Value;
if (!_composition.Fonts.TryGetValue(documentData.FontName, out var font))
{
// Something is wrong.
canvas.Restore();
return;
}
_fillPaint.Color = _colorAnimation?.Value ?? documentData.Color;
_strokePaint.Color = _strokeColorAnimation?.Value ?? documentData.StrokeColor;
var alpha = (byte)(Transform.Opacity.Value * 255 / 100f);
_fillPaint.Alpha = alpha;
_strokePaint.Alpha = alpha;
if (_strokeWidthAnimation?.Value != null)
{
_strokePaint.StrokeWidth = _strokeWidthAnimation.Value.Value;
}
else
{
var parentScale = Utils.Utils.GetScale(parentMatrix);
_strokePaint.StrokeWidth = documentData.StrokeWidth * Utils.Utils.DpScale() * parentScale;
}
if (_lottieDrawable.UseTextGlyphs())
{
DrawTextGlyphs(documentData, parentMatrix, font, canvas);
}
else
{
DrawTextWithFont(documentData, font, parentMatrix, canvas);
}
canvas.Restore();
}
public override void DrawLayer(BitmapCanvas canvas, Matrix3X3 parentMatrix, byte parentAlpha)
{
var bitmap = Bitmap;
if (bitmap == null)
{
return;
}
var density = Utils.Utils.DpScale();
_paint.Alpha = parentAlpha;
if (_colorFilterAnimation != null)
{
_paint.ColorFilter = _colorFilterAnimation.Value;
}
canvas.Save();
canvas.Concat(parentMatrix);
RectExt.Set(ref _src, 0, 0, PixelWidth, PixelHeight);
RectExt.Set(ref _dst, 0, 0, (int)(PixelWidth * density), (int)(PixelHeight * density));
canvas.DrawBitmap(bitmap, _src, _dst, _paint);
canvas.Restore();
}
public override void DrawLayer(BitmapCanvas canvas, Matrix3X3 parentMatrix, byte parentAlpha)
{
LottieLog.BeginSection("CompositionLayer.Draw");
canvas.Save();
RectExt.Set(ref _newClipRect, 0, 0, LayerModel.PreCompWidth, LayerModel.PreCompHeight);
parentMatrix.MapRect(ref _newClipRect);
for (var i = _layers.Count - 1; i >= 0; i--)
{
var nonEmptyClip = true;
if (!_newClipRect.IsEmpty)
{
nonEmptyClip = canvas.ClipRect(_newClipRect);
}
if (nonEmptyClip)
{
var layer = _layers[i];
layer.Draw(canvas, parentMatrix, parentAlpha);
}
}
canvas.Restore();
LottieLog.EndSection("CompositionLayer.Draw");
}
//public int Opacity
//{
// get
// {
// return PixelFormat.TRANSLUCENT;
// }
//}
public override void Render(RenderTarget target)
{
lock (this)
{
if (_bitmapCanvas == null)
{
return;
}
using (_bitmapCanvas.CreateSession(target.Size.Width, target.Size.Height, (DeviceContext)target))
{
_bitmapCanvas.Clear(Color.Transparent);
LottieLog.BeginSection("Drawable.Draw");
if (_compositionLayer == null)
{
return;
}
var scale = _scale;
float extraScale = 1f;
float maxScale = GetMaxScale(_bitmapCanvas);
if (scale > maxScale)
{
scale = maxScale;
extraScale = _scale / scale;
}
if (extraScale > 1)
{
// This is a bit tricky...
// We can't draw on a canvas larger than ViewConfiguration.get(context).getScaledMaximumDrawingCacheSize()
// which works out to be roughly the size of the screen because Android can't generate a
// bitmap large enough to render to.
// As a result, we cap the scale such that it will never be wider/taller than the screen
// and then only render in the top left corner of the canvas. We then use extraScale
// to scale up the rest of the scale. However, since we rendered the animation to the top
// left corner, we need to scale up and translate the canvas to zoom in on the top left
// corner.
_bitmapCanvas.Save();
float halfWidth = (float)_composition.Bounds.Width / 2f;
float halfHeight = (float)_composition.Bounds.Height / 2f;
float scaledHalfWidth = halfWidth * scale;
float scaledHalfHeight = halfHeight * scale;
_bitmapCanvas.Translate(
Scale * halfWidth - scaledHalfWidth,
Scale * halfHeight - scaledHalfHeight);
_bitmapCanvas.Scale(extraScale, extraScale, scaledHalfWidth, scaledHalfHeight);
}
_matrix.Reset();
_matrix = MatrixExt.PreScale(_matrix, scale, scale);
_compositionLayer.Draw(_bitmapCanvas, _matrix, _alpha);
LottieLog.EndSection("Drawable.Draw");
if (extraScale > 1)
{
//_bitmapCanvas.Restore();
_bitmapCanvas.RestoreAll();
}
}
}
}
