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//---------------------------------------------------------------------------
//
// <copyright file="StreamGeometryContext.cs" company="Microsoft">
// Copyright (C) Microsoft Corporation. All rights reserved.
// </copyright>
//
// This class is used by the StreamGeometry class to generate an inlined,
// flattened geometry stream.
//
//---------------------------------------------------------------------------
using MS.Internal;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Security;
using System.Security.Permissions;
#if !PBTCOMPILER
using System.Runtime.InteropServices;
using System.Windows.Threading;
using System.Windows;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Media.Composition;
using System.Windows.Media.Effects;
using System.Windows.Media.Imaging;
using System.Windows.Media.Media3D;
using System.Diagnostics;
using SR=MS.Internal.PresentationCore.SR;
using SRID=MS.Internal.PresentationCore.SRID;
using MS.Internal.PresentationCore;
namespace System.Windows.Media
#elif PBTCOMPILER
using MS.Internal.Markup;
namespace MS.Internal.Markup
#endif
{
/// <summary>
/// StreamGeometryContext
/// </summary>
#if ! PBTCOMPILER
public abstract class StreamGeometryContext : DispatcherObject, IDisposable
#else
internal abstract class StreamGeometryContext : IDisposable
#endif
{
#region Constructors
/// <summary>
/// This constructor exists to prevent external derivation
/// </summary>
internal StreamGeometryContext()
{
}
#endregion Constructors
#region IDisposable
void IDisposable.Dispose()
{
#if ! PBTCOMPILER
VerifyAccess();
#endif
DisposeCore();
GC.SuppressFinalize(this);
}
#endregion IDisposable
#region Public Methods
/// <summary>
/// Closes the StreamContext and flushes the content.
/// Afterwards the StreamContext can not be used anymore.
/// This call does not require all Push calls to have been Popped.
/// </summary>
/// <exception cref="ObjectDisposedException">
/// This call is illegal if this object has already been closed or disposed.
/// </exception>
public virtual void Close()
{
DisposeCore();
}
/// <summary>
/// BeginFigure - Start a new figure.
/// </summary>
public abstract void BeginFigure(Point startPoint, bool isFilled, bool isClosed);
/// <summary>
/// LineTo - append a LineTo to the current figure.
/// </summary>
public abstract void LineTo(Point point, bool isStroked, bool isSmoothJoin);
/// <summary>
/// QuadraticBezierTo - append a QuadraticBezierTo to the current figure.
/// </summary>
public abstract void QuadraticBezierTo(Point point1, Point point2, bool isStroked, bool isSmoothJoin);
/// <summary>
/// BezierTo - apply a BezierTo to the current figure.
/// </summary>
public abstract void BezierTo(Point point1, Point point2, Point point3, bool isStroked, bool isSmoothJoin);
/// <summary>
/// PolyLineTo - append a PolyLineTo to the current figure.
/// </summary>
public abstract void PolyLineTo(IList<Point> points, bool isStroked, bool isSmoothJoin);
/// <summary>
/// PolyQuadraticBezierTo - append a PolyQuadraticBezierTo to the current figure.
/// </summary>
public abstract void PolyQuadraticBezierTo(IList<Point> points, bool isStroked, bool isSmoothJoin);
/// <summary>
/// PolyBezierTo - append a PolyBezierTo to the current figure.
/// </summary>
public abstract void PolyBezierTo(IList<Point> points, bool isStroked, bool isSmoothJoin);
/// <summary>
/// ArcTo - append an ArcTo to the current figure.
/// </summary>
// Special case this one. Bringing in sweep direction requires code-gen changes.
//
#if !PBTCOMPILER
public abstract void ArcTo(Point point, Size size, double rotationAngle, bool isLargeArc, SweepDirection sweepDirection, bool isStroked, bool isSmoothJoin);
#else
public abstract void ArcTo(Point point, Size size, double rotationAngle, bool isLargeArc, bool sweepDirection, bool isStroked, bool isSmoothJoin);
#endif
#endregion Public Methods
/// <summary>
/// This is the same as the Close call:
/// Closes the Context and flushes the content.
/// Afterwards the Context can not be used anymore.
/// This call does not require all Push calls to have been Popped.
/// </summary>
/// <exception cref="ObjectDisposedException">
/// This call is illegal if this object has already been closed or disposed.
/// </exception>
internal virtual void DisposeCore() {}
/// <summary>
/// SetClosedState - Sets the current closed state of the figure.
/// </summary>
internal abstract void SetClosedState(bool closed);
}
}
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