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

   1 //
   2 // System.Drawing.FontFamily.cs
   3 //
   4 // (C) 2005 Mainsoft Corporation (http://www.mainsoft.com)
   5 // Author: Konstantin Triger (kostat@mainsoft.com)
   6 //
   7
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining
  10 // a copy of this software and associated documentation files (the
  11 // "Software"), to deal in the Software without restriction, including
  12 // without limitation the rights to use, copy, modify, merge, publish,
  13 // distribute, sublicense, and/or sell copies of the Software, and to
  14 // permit persons to whom the Software is furnished to do so, subject to
  15 // the following conditions:
  16 //
  17 // The above copyright notice and this permission notice shall be
  18 // included in all copies or substantial portions of the Software.
  19 //
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27 //
  28
  29 using System;
  30 using System.Drawing.Text;
  31 using System.Text;
  32 using System.Runtime.InteropServices;
  33 using System.Globalization;
  34 using awt = java.awt;
  35 using geom = java.awt.geom;
  36 using font = java.awt.font;
  37
  38 namespace System.Drawing {
  39
  40         public sealed class FontFamily : MarshalByRefObject, IDisposable {
  41
  42                 static readonly FontFamily _genericMonospace;
  43                 static readonly FontFamily _genericSansSerif;
  44                 static readonly FontFamily _genericSerif;
  45                 static readonly FontCollection _installedFonts;
  46
  47                 static FontFamily() {
  48                         _installedFonts = new InstalledFontCollection();
  49                         _genericMonospace = new FontFamily("Monospaced");
  50                         _genericSansSerif = new FontFamily("SansSerif");
  51                         _genericSerif = new FontFamily("Serif");
  52                 }
  53
  54                 private readonly string _name;
  55
  56                 // this is unavailable through Java API, usually 2048 for TT fonts
  57                 const int UnitsPerEm = 2048;
  58
  59
  60 //              ~FontFamily()
  61 //              {
  62 //              }
  63
  64                 // dummy ctors to work around convertor problems
  65                 internal FontFamily() {}
  66                 internal FontFamily(IntPtr family) {}
  67
  68                 public FontFamily(string familyName) : this(familyName, null)
  69                 {}
  70
  71                 public FontFamily(string name, FontCollection fontCollection) {
  72                         if (fontCollection == null)
  73                                 fontCollection = _installedFonts;
  74
  75                         string familyName = fontCollection.GetFamilyName(name);
  76                         if (familyName == null)
  77                                 throw new ArgumentException(String.Format("Font family '{0}' not found", name));
  78
  79                         _name = familyName;
  80                 }
  81
  82                 public FontFamily(GenericFontFamilies genericFamily) {
  83                         switch(genericFamily) {
  84                                 case GenericFontFamilies.SansSerif:
  85                                         _name = _genericSansSerif._name;
  86                                         break;
  87                                 case GenericFontFamilies.Serif:
  88                                         _name = _genericSerif._name;
  89                                         break;
  90                                 default:
  91                                         _name = _genericMonospace._name;
  92                                         break;
  93                         }
  94                 }
  95
  96
  97                 public string Name {
  98                         get {
  99                                 return _name;
 100                         }
 101                 }
 102
 103                 public static FontFamily[] Families {
 104                         get {
 105                                 return _installedFonts.Families;
 106                         }
 107                 }
 108
 109                 public static FontFamily GenericMonospace {
 110                         get {
 111                                 return _genericMonospace;
 112                         }
 113                 }
 114
 115                 public static FontFamily GenericSansSerif {
 116                         get {
 117                                 return _genericSansSerif;
 118                         }
 119                 }
 120
 121                 public static FontFamily GenericSerif {
 122                         get {
 123                                 return _genericSerif;
 124                         }
 125                 }
 126
 127                 public override bool Equals(object obj) {
 128                         if (this == obj)
 129                                 return true;
 130
 131                         if (!(obj is FontFamily))
 132                                 return false;
 133
 134                         return string.Compare(Name, ((FontFamily)obj).Name, true) == 0;
 135                 }
 136
 137                 awt.FontMetrics GetMetrics(FontStyle style) {
 138                         awt.Container c = new awt.Container();
 139                         return c.getFontMetrics(new Font(this, (float)(UnitsPerEm<<1), style, GraphicsUnit.World).NativeObject);
 140                 }
 141
 142                 public int GetCellAscent(FontStyle style) {
 143                         return GetMetrics(style).getMaxAscent()>>1;
 144                 }
 145
 146                 public int GetCellDescent(FontStyle style) {
 147                         return GetMetrics(style).getMaxDecent()>>1;
 148                 }
 149
 150                 public int GetEmHeight(FontStyle style) {
 151                         return UnitsPerEm;
 152                 }
 153
 154                 public static FontFamily[] GetFamilies(Graphics graphics) {
 155                         if (graphics == null) {
 156                                 throw new ArgumentNullException("graphics");
 157                         }
 158                         return _installedFonts.Families;
 159                 }
 160
 161                 public override int GetHashCode() {
 162                         return Name.ToLower().GetHashCode();
 163                 }
 164
 165                 public int GetLineSpacing(FontStyle style) {
 166                         return GetMetrics(style).getHeight()>>1;
 167                 }
 168
 169                 public string GetName(int language) {
 170                         CultureInfo culture = new CultureInfo(language, false);
 171                         //TBD: get java locale
 172                         return new awt.Font(_name, awt.Font.PLAIN, 1).getFamily(null);
 173                 }
 174
 175                 public bool IsStyleAvailable(FontStyle style) {
 176                         return (new Font(this, (float)(UnitsPerEm<<1), style, GraphicsUnit.World).Style & style) == style;
 177                 }
 178
 179                 public override string ToString() {
 180                         return string.Format("[{0}: Name={1}]", GetType().Name, Name);
 181                 }
 182
 183
 184
 185                 #region IDisposable Members
 186
 187                 public void Dispose() {
 188                         // TODO:  Add FontFamily.Dispose implementation
 189                 }
 190
 191                 #endregion
 192         }
 193 }
 194