//
// System.Drawing.FontFamily.cs
//
// Author:
// Dennis Hayes (dennish@Raytek.com)
// Alexandre Pigolkine (pigolkine@gmx.de)
// Peter Dennis Bartok (pbartok@novell.com)
//
// Copyright (C) 2002/2004 Ximian, Inc http://www.ximian.com
// Copyright (C) 2004 - 2006 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System.Drawing.Text;
using System.Text;
using System.Runtime.InteropServices;
namespace System.Drawing{
public sealed class FontFamily : MarshalByRefObject, IDisposable
{
//static private FontFamily genericMonospace;
//static private FontFamily genericSansSerif;
//static private FontFamily genericSerif;
private string name;
private IntPtr nativeFontFamily = IntPtr.Zero;
internal FontFamily(IntPtr fntfamily)
{
nativeFontFamily = fntfamily;
}
internal void refreshName()
{
StringBuilder sb;
if (nativeFontFamily == IntPtr.Zero)
return;
sb = new StringBuilder (GDIPlus.FACESIZE);
Status status = GDIPlus.GdipGetFamilyName (nativeFontFamily, sb, 0);
GDIPlus.CheckStatus (status);
name = sb.ToString();
}
~FontFamily()
{
Dispose ();
}
internal IntPtr NativeObject
{
get
{
return nativeFontFamily;
}
}
public FontFamily (GenericFontFamilies genericFamily)
{
Status status;
switch (genericFamily) {
case GenericFontFamilies.SansSerif:
status = GDIPlus.GdipGetGenericFontFamilySansSerif (out nativeFontFamily);
break;
case GenericFontFamilies.Serif:
status = GDIPlus.GdipGetGenericFontFamilySerif (out nativeFontFamily);
break;
case GenericFontFamilies.Monospace:
default: // Undocumented default
status = GDIPlus.GdipGetGenericFontFamilyMonospace (out nativeFontFamily);
break;
}
GDIPlus.CheckStatus (status);
}
public FontFamily(string name) : this (name, null)
{
}
public FontFamily (string name, FontCollection fontCollection)
{
IntPtr handle = (fontCollection == null) ? IntPtr.Zero : fontCollection.nativeFontCollection;
Status status = GDIPlus.GdipCreateFontFamilyFromName (name, handle, out nativeFontFamily);
GDIPlus.CheckStatus (status);
}
public string Name {
get {
if (nativeFontFamily == IntPtr.Zero)
throw new ArgumentException ("Name", Locale.GetText ("Object was disposed."));
if (name == null)
refreshName ();
return name;
}
}
public static FontFamily GenericMonospace {
get { return new FontFamily (GenericFontFamilies.Monospace); }
}
public static FontFamily GenericSansSerif {
get { return new FontFamily (GenericFontFamilies.SansSerif); }
}
public static FontFamily GenericSerif {
get { return new FontFamily (GenericFontFamilies.Serif); }
}
public int GetCellAscent (FontStyle style)
{
short outProperty;
Status status = GDIPlus.GdipGetCellAscent (nativeFontFamily, (int)style, out outProperty);
GDIPlus.CheckStatus (status);
return (int) outProperty;
}
public int GetCellDescent (FontStyle style)
{
short outProperty;
Status status = GDIPlus.GdipGetCellDescent (nativeFontFamily, (int)style, out outProperty);
GDIPlus.CheckStatus (status);
return (int) outProperty;
}
public int GetEmHeight (FontStyle style)
{
short outProperty;
Status status = GDIPlus.GdipGetEmHeight (nativeFontFamily, (int)style, out outProperty);
GDIPlus.CheckStatus (status);
return (int) outProperty;
}
public int GetLineSpacing (FontStyle style)
{
short outProperty;
Status status = GDIPlus.GdipGetLineSpacing (nativeFontFamily, (int)style, out outProperty);
GDIPlus.CheckStatus (status);
return (int) outProperty;
}
[MonoDocumentationNote ("When used with libgdiplus this method always return true (styles are created on demand).")]
public bool IsStyleAvailable (FontStyle style)
{
bool outProperty;
Status status = GDIPlus.GdipIsStyleAvailable (nativeFontFamily, (int)style, out outProperty);
GDIPlus.CheckStatus (status);
return outProperty;
}
public void Dispose ()
{
if (nativeFontFamily != IntPtr.Zero) {
Status status = GDIPlus.GdipDeleteFontFamily (nativeFontFamily);
nativeFontFamily = IntPtr.Zero;
GC.SuppressFinalize (this);
// check the status code (throw) at the last step
GDIPlus.CheckStatus (status);
}
}
public override bool Equals (object obj)
{
FontFamily o = (obj as FontFamily);
if (o == null)
return false;
return (Name == o.Name);
}
public override int GetHashCode ()
{
return Name.GetHashCode ();
}
public static FontFamily[] Families {
get { return new InstalledFontCollection ().Families; }
}
public static FontFamily[] GetFamilies (Graphics graphics)
{
if (graphics == null)
throw new ArgumentNullException ("graphics");
InstalledFontCollection fntcol = new InstalledFontCollection ();
return fntcol.Families;
}
[MonoLimitation ("The language parameter is ignored. We always return the name using the default system language.")]
public string GetName (int language)
{
return Name;
}
public override string ToString ()
{
return String.Concat ("[FontFamily: Name=", Name, "]");
}
}
}
|