mcs/System.Drawing/System.Drawing.Drawing2D/GraphicsState.jvm.cs

   1 //
   2 // System.Drawing.Drawing2D.ExtendedGraphicsState.jvm.cs
   3 //
   4 // Author:
   5 //   Vladimir Krasnov (vladimirk@mainsoft.com)
   6 //
   7 // Copyright (C) 2005 Mainsoft Corporation (http://www.mainsoft.com)
   8 //
   9
  10 //
  11 // Permission is hereby granted, free of charge, to any person obtaining
  12 // a copy of this software and associated documentation files (the
  13 // "Software"), to deal in the Software without restriction, including
  14 // without limitation the rights to use, copy, modify, merge, publish,
  15 // distribute, sublicense, and/or sell copies of the Software, and to
  16 // permit persons to whom the Software is furnished to do so, subject to
  17 // the following conditions:
  18 //
  19 // The above copyright notice and this permission notice shall be
  20 // included in all copies or substantial portions of the Software.
  21 //
  22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  29 //
  30 using System;
  31 using System.Drawing.Text;
  32 using geom = java.awt.geom;
  33 using awt = java.awt;
  34
  35 namespace System.Drawing.Drawing2D
  36 {
  37         /// <summary>
  38         /// Summary description for GraphicsState.
  39         /// </summary>
  40         public sealed class GraphicsState : MarshalByRefObject
  41         {
  42                 readonly CompositingMode _compositingMode;
  43                 readonly CompositingQuality _compositingQuality;
  44                 readonly Region _clip;
  45                 readonly awt.Shape _baseClip;
  46                 readonly InterpolationMode _interpolationMode;
  47                 readonly float _pageScale;
  48                 readonly GraphicsUnit _pageUnit;
  49                 readonly PixelOffsetMode _pixelOffsetMode;
  50                 readonly Point _renderingOrigin;
  51                 readonly SmoothingMode _smoothingMode;
  52                 readonly int _textContrast;
  53                 readonly TextRenderingHint _textRenderingHint;
  54
  55                 // additional transform in case that new container has one
  56                 readonly Matrix _transform;
  57                 readonly Matrix _baseTransform;
  58
  59                 GraphicsState _next = null;
  60
  61                 internal GraphicsState(Graphics graphics, bool resetState)
  62                         : this(graphics, Matrix.IdentityTransform, resetState) {}
  63
  64                 internal GraphicsState Next {
  65                         get {
  66                                 return _next;
  67                         }
  68                         set {
  69                                 _next = value;
  70                         }
  71                 }
  72
  73                 internal GraphicsState(Graphics graphics, Matrix matrix, bool resetState)
  74                 {
  75                         _compositingMode = graphics.CompositingMode;
  76                         _compositingQuality = graphics.CompositingQuality;
  77                         _clip = graphics.ScaledClip;
  78                         _baseClip = graphics.NativeObject.getClip();
  79                         _interpolationMode = graphics.InterpolationMode;
  80                         _pageScale = graphics.PageScale;
  81                         _pageUnit = graphics.PageUnit;
  82                         _pixelOffsetMode = graphics.PixelOffsetMode;
  83
  84                         // FIXME: render orign is not implemented yet
  85                         //_renderingOrigin = new Point( g.RenderingOrigin.X, g.RenderingOrigin.Y );
  86
  87                         _smoothingMode = graphics.SmoothingMode;
  88                         _transform = graphics.Transform;
  89                         _baseTransform = graphics.BaseTransform;
  90
  91                         _textContrast = graphics.TextContrast;
  92                         _textRenderingHint = graphics.TextRenderingHint;
  93
  94                         if (resetState)
  95                                 ResetState(graphics, matrix);
  96                 }
  97
  98                 internal void RestoreState(Graphics graphics)
  99                 {
 100                         graphics.CompositingMode = _compositingMode;
 101                         graphics.CompositingQuality = _compositingQuality;
 102                         graphics.ScaledClip = _clip;
 103                         graphics.InterpolationMode = _interpolationMode;
 104                         graphics.PageScale = _pageScale;
 105                         graphics.PageUnit = _pageUnit;
 106                         graphics.PixelOffsetMode = _pixelOffsetMode;
 107
 108                         // FIXME: render orign is not implemented yet
 109                         //graphics.RenderingOrigin = new Point( _renderingOrigin.X, _renderingOrigin.Y );
 110
 111                         graphics.SmoothingMode = _smoothingMode;
 112                         graphics.Transform = _transform;
 113                         graphics.BaseTransform = _baseTransform;
 114                         graphics.TextContrast = _textContrast;
 115                         graphics.TextRenderingHint = _textRenderingHint;
 116
 117                         // must be set after the base transform is restored
 118                         graphics.NativeObject.setClip(_baseClip);
 119                 }
 120
 121                 void ResetState(Graphics graphics, Matrix matrix)
 122                 {
 123                         //should be set before the base transform is changed
 124                         if (_baseClip == null)
 125                                 graphics.IntersectScaledClipWithBase(graphics.VisibleShape);
 126
 127                         graphics.CompositingMode = CompositingMode.SourceOver;
 128                         graphics.CompositingQuality = CompositingQuality.Default;
 129                         graphics.ScaledClip = Region.InfiniteRegion;
 130                         graphics.InterpolationMode = InterpolationMode.Bilinear;
 131                         graphics.PageScale = 1.0f;
 132                         graphics.PageUnit = GraphicsUnit.Display;
 133                         graphics.PixelOffsetMode = PixelOffsetMode.Default;
 134
 135                         // FIXME: render orign is not implemented yet
 136                         //graphics.RenderingOrigin = new Point(0, 0);
 137
 138                         graphics.SmoothingMode = SmoothingMode.None;
 139                         graphics.ResetTransform();
 140                         graphics.PrependBaseTransform(Graphics.GetFinalTransform(_transform.NativeObject, _pageUnit, _pageScale));
 141                         graphics.PrependBaseTransform(matrix.NativeObject);
 142                         graphics.TextContrast = 4;
 143                         graphics.TextRenderingHint = TextRenderingHint.SystemDefault;
 144                 }
 145
 146                 internal void RestoreBaseClip(Graphics graphics) {
 147                         graphics.NativeObject.setClip(_baseClip);
 148                 }
 149         }
 150 }