public void ApplyStyle(CanvasStyle style)
{
_path.Fill = style.Fill;
_path.Stroke = style.Stroke;
_path.StrokeThickness = style.StrokeWidth;
_path.StrokeLineJoin = style.StrokeLineJoin;
_path.StrokeEndLineCap = style.LineCap;
_path.StrokeStartLineCap = style.LineCap;
_path.StrokeMiterLimit = style.StrokeMiterLimit;
_path.Opacity = style.GlobalAlpha;
_latestStyle = style;
}
private bool AreStylesEquals(Path _path, CanvasStyle style)
{
return _path.Fill == style.Fill &&
_path.Stroke == style.Stroke &&
_path.StrokeThickness == style.StrokeWidth &&
_path.StrokeLineJoin == style.StrokeLineJoin &&
_path.StrokeEndLineCap == style.LineCap &&
_path.StrokeStartLineCap == style.LineCap &&
_path.StrokeMiterLimit == style.StrokeMiterLimit &&
_path.Opacity == style.GlobalAlpha;
}
public CanvasStyle GetStyle()
{
//use super constructor in order to avoid triggers CommitAndApplyStyle after each property get-call
var style = new CanvasStyle(this, _path.Fill.Clone(), _path.Stroke.Clone(), _path.StrokeThickness,
_path.StrokeLineJoin, _path.StrokeEndLineCap,
(float) _path.StrokeMiterLimit, _path.Opacity);
return style;
}
public void CommitAndApplyStyle(CanvasStyle style)
{
bool isDifferentStyle = !AreStylesEquals(_path, style);
if (!_isEmpty)
{
if (isDifferentStyle)
{
//style is changed, so we have to have new path
Commit();
}
else
{
//style the same, so we can keep current path and continue draw in it
CommitToGeometryAndInit();
}
}
ApplyStyle(style);
}
public CanvasState(CanvasStyle style, MatrixTransform transformation)
{
Style = style;
Transformation = transformation;
}
private void SetDefaultValues()
{
_fill = Brushes.Black;
_stroke = Brushes.Black;
//store current style
_style = new CanvasStyle(_path);
_style.Fill = _fill;
_style.Stroke = _stroke;
_textAlign = "start";
_textBaseLine = "alphabetic";
_globalAlpha = 1.0;
_globalCompositeOperation = "source-over";
_shadowColor = "rgba(0,0,0,0)";
_shadowOffsetX = 0;
_shadowOffsetY = 0;
_shadowBlur = 0;
lineWidth = 1.0;
lineCap = "butt";
lineJoin = "miter";
miterLimit = 10.0;
globalAlpha = 1;
_compositier = new Compositer();
}
