private async Task DrawAsync(int previousX, int previousY, int currentX, int currentY)
{
if (StylusSettings.Mode == StylusMode.Brush)
{
var stroke = new Stroke
{
Style = new StrokeStyle
{
Color = Brush.Color,
Thickness = Brush.Size
},
StylusPoints = new StylusPointCollection
{
(previousX, previousY), (currentX, currentY)
}
};
await StrokeAsync(stroke);
}
else if (StylusSettings.Mode == StylusMode.Eraser)
{
var wipe = new Wipe
{
Style = new WipeStyle
{
Thickness = Eraser.Size
},
StylusPoints = new StylusPointCollection
{
(previousX, previousY), (currentX, currentY)
}
};
await WipeAsync(wipe);
}
else if (StylusSettings.Mode == StylusMode.PaintBucket)
{
var fill = new Fill
{
Style = new FillStyle
{
Color = PaintBucket.Color
},
StylusPoint = new StylusPoint
{
X = currentX, Y = currentY
}
};
await FillAsync(fill);
}
}
protected async Task SetWipeStyleAsync(WipeStyle style)
{
await _batch.LineWidthAsync(style.Thickness);
await _batch.GlobalCompositeOperationAsync(CompositeOperation.Destination_Out);
}
public async Task WipeAsync(Wipe wipe, WipeStyle style)
{
await SetWipeStyleAsync(style);
await LineAsync(wipe.StylusPoints);
}
