public void EndFigure(bool isClosed)
{
this.impl.Operations.Enqueue(new EndOp { IsClosed = isClosed });
double maxX = 0;
double maxY = 0;
foreach (var p in this.points)
{
maxX = System.Math.Max(p.X, maxX);
maxY = System.Math.Max(p.Y, maxY);
}
var context = new Cairo.Context(new Cairo.ImageSurface(Cairo.Format.Argb32, (int)maxX, (int)maxY));
var clone = new Queue<GeometryOp>(this.impl.Operations);
context.LineWidth = 2;
while (clone.Count > 0)
{
var current = clone.Dequeue();
if (current is BeginOp)
{
var bo = current as BeginOp;
context.MoveTo(bo.Point.ToCairo());
}
else if (current is LineToOp)
{
var lto = current as LineToOp;
context.LineTo(lto.Point.ToCairo());
}
else if (current is EndOp)
{
if (((EndOp)current).IsClosed)
context.ClosePath();
}
else if (current is CurveToOp)
{
var cto = current as CurveToOp;
context.CurveTo(cto.Point.ToCairo(), cto.Point2.ToCairo(), cto.Point3.ToCairo());
}
context.StrokePreserve();
context.FillPreserve();
}
var test = context.StrokeExtents();
this.impl.Bounds = new Rect(test.X, test.Y, test.Width, test.Height);
context.Dispose();
}
public StreamGeometryContextImpl(StreamGeometryImpl imp)
{
this.impl = imp;
this.surf = new Cairo.ImageSurface(Cairo.Format.Argb32, 0, 0);
this.context = new Cairo.Context(this.surf);
}
/// <summary>
/// Initializes a new instance of the <see cref="DrawingContext"/> class.
/// </summary>
/// <param name="surface">The GDK drawable.</param>
public DrawingContext(Gdk.Drawable drawable)
{
this.Drawable = drawable;
this.context = Gdk.CairoHelper.Create(drawable);
this.CurrentTransform = Matrix.Identity;
}
/// <summary>
/// Initializes a new instance of the <see cref="DrawingContext"/> class.
/// </summary>
/// <param name="surface">The target surface.</param>
public DrawingContext(Cairo.Surface surface)
{
this.surface = surface;
this.context = new Cairo.Context(surface);
this.CurrentTransform = Matrix.Identity;
}
/// <summary>
/// Initializes a new instance of the <see cref="DrawingContext"/> class.
/// </summary>
/// <param name="surface">The GDK drawable.</param>
public DrawingContext(Gdk.Drawable drawable)
{
this.Drawable = drawable;
this.context = Gdk.CairoHelper.Create(drawable);
this.CurrentTransform = Matrix.Identity;
}
/// <summary>
/// Initializes a new instance of the <see cref="DrawingContext"/> class.
/// </summary>
/// <param name="surface">The target surface.</param>
public DrawingContext(Cairo.Surface surface)
{
this.surface = surface;
this.context = new Cairo.Context(surface);
this.CurrentTransform = Matrix.Identity;
}