Windows/FooEditEngine/PrintableTextRender.cs

   1 using System;
   2 using System.Collections.Generic;
   3 using System.Drawing;
   4
   5 namespace FooEditEngine.Windows
   6 {
   7     class PrintableTextLayout : ITextLayout
   8     {
   9         public PrintableTextLayout(Font font)
  10         {
  11             this.Disposed = false;
  12             this.Height = font.Height;
  13         }
  14         public double Width
  15         {
  16             get { return 0; }
  17         }
  18
  19         public double Height
  20         {
  21             get;
  22             private set;
  23         }
  24
  25         public bool Disposed
  26         {
  27             get;
  28             private set;
  29         }
  30
  31         public bool Invaild
  32         {
  33             get { return false; }
  34         }
  35
  36         public int GetIndexFromColPostion(double x)
  37         {
  38             return 0;
  39         }
  40
  41         public double GetWidthFromIndex(int index)
  42         {
  43             return 0;
  44         }
  45
  46         public double GetColPostionFromIndex(int index)
  47         {
  48             return 0;
  49         }
  50
  51         public int AlignIndexToNearestCluster(int index, AlignDirection flow)
  52         {
  53             return 0;
  54         }
  55
  56         public void Dispose()
  57         {
  58             this.Disposed = true;
  59         }
  60     }
  61     class PrintableTextRender : IPrintableTextRender
  62     {
  63         StringFormat sf;
  64         Font font;
  65         Graphics g;
  66
  67         public PrintableTextRender(Font font, Graphics g)
  68         {
  69             this.font = font;
  70             this.sf = StringFormat.GenericTypographic;
  71             this.sf.FormatFlags |= StringFormatFlags.MeasureTrailingSpaces;
  72             this.g = g;
  73         }
  74
  75         public event ChangedRenderResourceEventHandler ChangedRenderResource;
  76         public event EventHandler ChangedRightToLeft;
  77
  78         public void BeginDraw(Graphics g)
  79         {
  80             this.g = g;
  81             if(this.RightToLeft)
  82                 this.sf.FormatFlags |= StringFormatFlags.DirectionRightToLeft;
  83         }
  84
  85         public void EndDraw()
  86         {
  87         }
  88
  89         public ITextLayout CreateLaytout(string str)
  90         {
  91             return new PrintableTextLayout(this.font);
  92         }
  93
  94         public float HeaderHeight { get { return this.font.Height; } }
  95
  96         public float FooterHeight { get { return this.font.Height; } }
  97
  98         const int LineNumberFiledLength = 6;
  99
 100         public double LineNemberWidth
 101         {
 102             get
 103             {
 104                 int length = LineNumberFiledLength;
 105                 length++;   //余白を確保する
 106                 SizeF metrics = g.MeasureString("0", this.font, Int16.MaxValue, this.sf);
 107                 return metrics.Width * length;
 108             }
 109         }
 110
 111         public double FoldingWidth
 112         {
 113             get
 114             {
 115                 return 0;
 116             }
 117         }
 118
 119         public bool RightToLeft
 120         {
 121             get;
 122             set;
 123         }
 124
 125         public bool InsertMode
 126         {
 127             get;
 128             set;
 129         }
 130
 131         public Rectangle TextArea
 132         {
 133             get;
 134             set;
 135         }
 136
 137         public Size emSize
 138         {
 139             get
 140             {
 141                 return new Size(0, 0);
 142             }
 143         }
 144
 145         public void DrawCachedBitmap(Rectangle rect)
 146         {
 147         }
 148
 149         public void CacheContent()
 150         {
 151         }
 152
 153         public bool IsVaildCache()
 154         {
 155             return false;
 156         }
 157
 158         public void DrawLine(Point from, Point to)
 159         {
 160         }
 161
 162         public void DrawString(string str, double x, double y)
 163         {
 164             g.DrawString(str, this.font, new SolidBrush(this.Foreground), new PointF((float)x, (float)y), this.sf);
 165         }
 166
 167         public void DrawCaret(Rectangle rect, bool transparent)
 168         {
 169         }
 170
 171         public void DrawFoldingMark(bool expand, double x, double y)
 172         {
 173         }
 174
 175         public void DrawString(string str, double x, double y, StringAlignment align, Size layoutRect,StringColorType colorType = StringColorType.Forground)
 176         {
 177             System.Drawing.StringAlignment old = this.sf.Alignment;
 178
 179             this.sf.Alignment = System.Drawing.StringAlignment.Center;
 180
 181             g.DrawString(str, this.font, new SolidBrush(this.Foreground), new RectangleF((float)x, (float)y, (float)layoutRect.Width, (float)layoutRect.Height), this.sf);
 182
 183             this.sf.Alignment = old;
 184         }
 185
 186         public void DrawOneLine(LineToIndexTable lti, int row, double x, double y, IEnumerable<Selection> SelectRanges)
 187         {
 188             g.DrawString(lti[row], this.font, new SolidBrush(this.Foreground), new RectangleF((float)x, (float)y, (float)this.TextArea.Width, (float)this.TextArea.Height), this.sf);
 189         }
 190
 191         public void FillRectangle(Rectangle rect, FillRectType type)
 192         {
 193         }
 194
 195         public void FillBackground(Rectangle rect)
 196         {
 197         }
 198
 199         public ITextLayout CreateLaytout(string str, SyntaxInfo[] syntaxCollection, IEnumerable<Marker> MarkerRanges)
 200         {
 201             return new PrintableTextLayout(this.font);
 202         }
 203
 204         public List<LineToIndexTableData> BreakLine(Document doc, LineToIndexTable layoutLineCollection, int startIndex, int endIndex, double maxwidth)
 205         {
 206             List<LineToIndexTableData> output = new List<LineToIndexTableData>();
 207
 208             foreach (string str in doc.GetLines(startIndex, endIndex))
 209             {
 210                 LineToIndexTableData info;
 211
 212                 if (str.Length == 0)
 213                 {
 214                     info = layoutLineCollection.CreateLineToIndexTableData(startIndex, 0, true, null);
 215                     output.Add(info);
 216                     return output;
 217                 }
 218
 219                 int fitlen, index = 0, x = 0, width;
 220                 do
 221                 {
 222                     int linesFilled;
 223                     SizeF metrics = g.MeasureString(str.Substring(index), this.font, new SizeF((float)maxwidth, this.font.Height + 1), this.sf, out fitlen, out linesFilled);
 224
 225                     x += width = (int)metrics.Width;
 226
 227                     info = layoutLineCollection.CreateLineToIndexTableData(index + startIndex, fitlen, false, null);
 228                     output.Add(info);
 229
 230                     index += fitlen;
 231                 } while (index < str.Length);
 232
 233                 output[output.Count - 1].LineEnd = true;
 234
 235                 startIndex += str.Length;
 236             }
 237
 238             return output;
 239         }
 240
 241         public void DrawGripper(Point p, double radius)
 242         {
 243             //タッチには対応していないので実装する必要はない
 244             throw new NotImplementedException();
 245         }
 246
 247         public System.Drawing.Color Foreground
 248         {
 249             get;
 250             set;
 251         }
 252
 253         public int TabWidthChar
 254         {
 255             get { float taboffset; return (int)this.sf.GetTabStops(out taboffset)[0]; }
 256             set { this.sf.SetTabStops(0,new float[]{value});}
 257         }
 258
 259         public bool ShowFullSpace
 260         {
 261             get;
 262             set;
 263         }
 264
 265         public bool ShowHalfSpace
 266         {
 267             get;
 268             set;
 269         }
 270
 271         public bool ShowTab
 272         {
 273             get;
 274             set;
 275         }
 276
 277         public bool ShowLineBreak
 278         {
 279             get;
 280             set;
 281         }
 282     }
 283 }