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Tebjan Halm authored3e051754
using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Drawing;using System.Drawing.Drawing2D;using System.Drawing.Text;namespace Svg{ /// <summary> /// Convenience wrapper around a graphics object /// </summary> public sealed class SvgRenderer : IDisposable, IGraphicsProvider, ISvgRenderer { private Graphics _innerGraphics; private Stack<ISvgBoundable> _boundables = new Stack<ISvgBoundable>(); public void SetBoundable(ISvgBoundable boundable) { _boundables.Push(new ImmutableBoundable(boundable)); } public ISvgBoundable GetBoundable() { return _boundables.Peek(); } public ISvgBoundable PopBoundable() { return _boundables.Pop(); } public float DpiY { get { return _innerGraphics.DpiY; } } /// <summary> /// Initializes a new instance of the <see cref="ISvgRenderer"/> class. /// </summary> private SvgRenderer(Graphics graphics) { this._innerGraphics = graphics; } public void DrawImage(Image image, RectangleF destRect, RectangleF srcRect, GraphicsUnit graphicsUnit) { _innerGraphics.DrawImage(image, destRect, srcRect, graphicsUnit); } public void DrawImageUnscaled(Image image, Point location) { this._innerGraphics.DrawImageUnscaled(image, location); } public void DrawPath(Pen pen, GraphicsPath path) { this._innerGraphics.DrawPath(pen, path); } public void FillPath(Brush brush, GraphicsPath path) { this._innerGraphics.FillPath(brush, path); } public Region GetClip() { return this._innerGraphics.Clip; } public void RotateTransform(float fAngle, MatrixOrder order = MatrixOrder.Append) { this._innerGraphics.RotateTransform(fAngle, order); } public void ScaleTransform(float sx, float sy, MatrixOrder order = MatrixOrder.Append) {
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this._innerGraphics.ScaleTransform(sx, sy, order);
}
public void SetClip(Region region, CombineMode combineMode = CombineMode.Replace)
{
this._innerGraphics.SetClip(region, combineMode);
}
public void TranslateTransform(float dx, float dy, MatrixOrder order = MatrixOrder.Append)
{
this._innerGraphics.TranslateTransform(dx, dy, order);
}
public SmoothingMode SmoothingMode
{
get { return this._innerGraphics.SmoothingMode; }
set { this._innerGraphics.SmoothingMode = value; }
}
public Matrix Transform
{
get { return this._innerGraphics.Transform; }
set { this._innerGraphics.Transform = value; }
}
public void Dispose()
{
this._innerGraphics.Dispose();
}
Graphics IGraphicsProvider.GetGraphics()
{
return _innerGraphics;
}
/// <summary>
/// Creates a new <see cref="ISvgRenderer"/> from the specified <see cref="Image"/>.
/// </summary>
/// <param name="image"><see cref="Image"/> from which to create the new <see cref="ISvgRenderer"/>.</param>
public static ISvgRenderer FromImage(Image image)
{
var g = Graphics.FromImage(image);
g.TextRenderingHint = TextRenderingHint.AntiAlias;
g.PixelOffsetMode = System.Drawing.Drawing2D.PixelOffsetMode.Half;
g.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
g.TextContrast = 1;
return new SvgRenderer(g);
}
/// <summary>
/// Creates a new <see cref="ISvgRenderer"/> from the specified <see cref="Graphics"/>.
/// </summary>
/// <param name="graphics">The <see cref="Graphics"/> to create the renderer from.</param>
public static ISvgRenderer FromGraphics(Graphics graphics)
{
return new SvgRenderer(graphics);
}
public static ISvgRenderer FromNull()
{
var img = new Bitmap(1, 1);
return SvgRenderer.FromImage(img);
}
}
}