mcs/class/System.Drawing/System.Drawing/FontFamily.cs

   1 //
   2 // System.Drawing.FontFamily.cs
   3 //
   4 // Author:
   5 //   Dennis Hayes (dennish@Raytek.com)
   6 //   Alexandre Pigolkine (pigolkine@gmx.de)
   7 //   Sanjay Gupta (gsanjay@novell.com)
   8 //
   9 // (C) 2002/2003 Ximian, Inc
  10 //
  11 using System;
  12 using System.Drawing.Text;
  13
  14 namespace System.Drawing {
  15
  16         public sealed class FontFamily : MarshalByRefObject, IDisposable {
  17
  18                 static FontFamily genericMonospace;
  19                 static FontFamily genericSansSerif;
  20                 static FontFamily genericSerif;
  21
  22                 string name;
  23
  24                 internal IntPtr nativeFontFamily = IntPtr.Zero;
  25
  26                 internal FontFamily ( IntPtr ptr )
  27                 {
  28                         nativeFontFamily = ptr;
  29                 }
  30
  31                 //Need to come back here, is Arial the right thing to do
  32                 internal FontFamily () : this ( "Arial", null )
  33                 {
  34                         //FIXME
  35                 }
  36
  37                 public FontFamily ( GenericFontFamilies genericFamily )
  38                 {
  39                 }
  40
  41                 public FontFamily ( string familyName ) : this( familyName, null )
  42                 {
  43                 }
  44
  45                 public FontFamily ( string familyName, FontCollection collection )
  46                 {
  47                         Status status;
  48                         if ( collection != null )
  49                                 status = GDIPlus.GdipCreateFontFamilyFromName( familyName, collection.nativeFontCollection, out nativeFontFamily );
  50                         else
  51                                 status = GDIPlus.GdipCreateFontFamilyFromName( familyName, IntPtr.Zero, out nativeFontFamily );
  52
  53                         if ( status != Status.Ok ){
  54                                 nativeFontFamily = IntPtr.Zero;
  55                                 throw new Exception ( "Error calling GDIPlus.GdipCreateFontFamilyFromName: " + status );
  56                         }
  57                         name = familyName;
  58                 }
  59
  60                 public string Name {
  61                         get {
  62                                 return name;
  63                         }
  64                 }
  65
  66                 public static FontFamily GenericMonospace {
  67                         get {
  68                                 if ( genericMonospace == null ) {
  69                                         IntPtr generic = IntPtr.Zero;
  70                                         Status status = GDIPlus.GdipGetGenericFontFamilyMonospace ( out generic );
  71                                         if ( status != Status.Ok ) {
  72                                                 generic = IntPtr.Zero;
  73                                                 throw new Exception ( "Error calling GDIPlus.GdipGetGenericFontFamilyMonospace: " + status );
  74                                         }
  75                                         genericMonospace = new FontFamily ( generic );
  76                                         genericMonospace.name = "Courier New";
  77                                 }
  78                                 return genericMonospace;
  79                         }
  80                 }
  81
  82                 public static FontFamily GenericSansSerif {
  83                         get {
  84                                 if ( genericSansSerif == null ) {
  85                                         IntPtr generic = IntPtr.Zero;
  86                                         Status status = GDIPlus.GdipGetGenericFontFamilySansSerif ( out generic );
  87                                         if ( status != Status.Ok )
  88                                         {
  89                                                 generic = IntPtr.Zero;
  90                                                 throw new Exception ( "Error calling GDIPlus.GdipGetGenericFontFamilySansSerif: " + status );
  91                                         }
  92                                         genericSansSerif = new FontFamily ( generic );
  93                                         genericSansSerif.name = "Sans Serif";
  94                                 }
  95                                 return genericSansSerif;
  96                         }
  97                 }
  98
  99                 public static FontFamily GenericSerif {
 100                         get {
 101                                 if ( genericSerif == null ) {
 102                                         IntPtr generic = IntPtr.Zero;
 103                                         Status status = GDIPlus.GdipGetGenericFontFamilySerif ( out generic );
 104                                         if ( status != Status.Ok )
 105                                         {
 106                                                 generic = IntPtr.Zero;
 107                                                 throw new Exception ( "Error calling GDIPlus.GdipGetGenericFontFamilySerif: " + status );
 108                                         }
 109                                         genericSerif = new FontFamily ( generic );
 110                                         genericSerif.name = "Times New Roman";
 111                                 }
 112                                 return genericSerif;
 113                         }
 114                 }
 115
 116                 public int GetCellAscent ( FontStyle style )
 117                 {
 118                         throw new NotImplementedException ();
 119                 }
 120
 121                 public int GetCellDescent ( FontStyle style )
 122                 {
 123                         throw new NotImplementedException ();
 124                 }
 125
 126                 public int GetEmHeight ( FontStyle style )
 127                 {
 128                         throw new NotImplementedException ();
 129                 }
 130
 131                 public int GetLineSpacing ( FontStyle style )
 132                 {
 133                         throw new NotImplementedException ();
 134                 }
 135
 136                 public bool IsStyleAvailable ( FontStyle style )
 137                 {
 138                         throw new NotImplementedException ();
 139                 }
 140
 141                 public void Dispose()
 142                 {
 143                         Status status;
 144                         if ( genericSerif != null ) {
 145                                 status = GDIPlus.GdipDeleteFontFamily ( genericSerif.nativeFontFamily );
 146                                 if ( status != Status.Ok )
 147                                         genericSerif.nativeFontFamily = IntPtr.Zero;
 148                         }
 149
 150                         if ( genericSansSerif != null )
 151                         {
 152                                 status = GDIPlus.GdipDeleteFontFamily ( genericSansSerif.nativeFontFamily );
 153                                 if ( status != Status.Ok )
 154                                         genericSansSerif.nativeFontFamily = IntPtr.Zero;
 155                         }
 156
 157                         if ( genericMonospace != null )
 158                         {
 159                                 status = GDIPlus.GdipDeleteFontFamily ( genericMonospace.nativeFontFamily );
 160                                 if ( status != Status.Ok )
 161                                         genericMonospace.nativeFontFamily = IntPtr.Zero;
 162                         }
 163
 164                         status = GDIPlus.GdipDeleteFontFamily ( nativeFontFamily );
 165                         if ( status != Status.Ok )
 166                                 nativeFontFamily = IntPtr.Zero;
 167
 168                 }
 169         }
 170 }
 171