-//\r
-// System.Drawing.FontConverter.cs\r
-//\r
-// Author:\r
-// Dennis Hayes (dennish@Raytek.com)\r
-//\r
-// (C) 2002 Ximian, Inc\r
-//\r
-using System;\r
-\r
-namespace System.Drawing\r
-{\r
- /// <summary>\r
- /// Summary description for FontConverter.\r
- /// </summary>\r
- public class FontConverter\r
- {\r
- public FontConverter()\r
- {\r
- }\r
- }\r
-}\r
+//
+// System.Drawing.FontConverter.cs
+//
+// Authors:
+// Dennis Hayes (dennish@Raytek.com)
+// Gonzalo Paniagua Javier (gonzalo@ximian.com)
+// Ravindra (rkumar@novell.com)
+//
+// Copyright (C) 2002,2003 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;
+using System.Text;
+using System.Collections;
+using System.ComponentModel;
+using System.Globalization;
+using System.Drawing.Text;
+using System.ComponentModel.Design.Serialization;
+using System.Reflection;
+
+namespace System.Drawing
+{
+ public class FontConverter : TypeConverter
+ {
+ public FontConverter ()
+ {
+ }
+
+ ~FontConverter ()
+ {
+ // required to match API definition
+ }
+
+ public override bool CanConvertFrom (ITypeDescriptorContext context, Type sourceType)
+ {
+ if (sourceType == typeof (string))
+ return true;
+
+ return base.CanConvertFrom (context, sourceType);
+ }
+
+ public override bool CanConvertTo (ITypeDescriptorContext context, Type destinationType)
+ {
+ if (destinationType == typeof (String))
+ return true;
+
+ if (destinationType == typeof (InstanceDescriptor))
+ return true;
+
+ return base.CanConvertTo (context, destinationType);
+ }
+
+ public override object ConvertTo (ITypeDescriptorContext context,
+ CultureInfo culture,
+ object value,
+ Type destinationType)
+ {
+ if ((destinationType == typeof (string)) && (value is Font)) {
+ Font font = (Font) value;
+ StringBuilder sb = new StringBuilder ();
+ sb.Append (font.Name).Append (culture.TextInfo.ListSeparator[0] + " ");
+ sb.Append (font.Size);
+
+ switch (font.Unit) {
+ // MS throws ArgumentException, if unit is set
+ // to GraphicsUnit.Display
+ // Don't know what to append for GraphicsUnit.Display
+ case GraphicsUnit.Display:
+ sb.Append ("display"); break;
+
+ case GraphicsUnit.Document:
+ sb.Append ("doc"); break;
+
+ case GraphicsUnit.Point:
+ sb.Append ("pt"); break;
+
+ case GraphicsUnit.Inch:
+ sb.Append ("in"); break;
+
+ case GraphicsUnit.Millimeter:
+ sb.Append ("mm"); break;
+
+ case GraphicsUnit.Pixel:
+ sb.Append ("px"); break;
+
+ case GraphicsUnit.World:
+ sb.Append ("world"); break;
+ }
+
+ if (font.Style != FontStyle.Regular)
+ sb.Append (culture.TextInfo.ListSeparator[0] + " style=").Append (font.Style);
+
+ return sb.ToString ();
+ }
+
+ if ((destinationType == typeof (InstanceDescriptor)) && (value is Font)) {
+ Font font = (Font) value;
+ ConstructorInfo met = typeof(Font).GetConstructor (new Type[] {typeof(string), typeof(float), typeof(FontStyle), typeof(GraphicsUnit)});
+ object[] args = new object[4];
+ args [0] = font.Name;
+ args [1] = font.Size;
+ args [2] = font.Style;
+ args [3] = font.Unit;
+ return new InstanceDescriptor (met, args);
+ }
+
+ return base.ConvertTo (context, culture, value, destinationType);
+ }
+
+ public override object ConvertFrom (ITypeDescriptorContext context, CultureInfo culture, object value)
+ {
+ FontStyle f_style;
+ float f_size;
+ GraphicsUnit f_unit;
+ string font;
+ string units;
+ string[] fields;
+
+ if (! (value is string)) {
+ return base.ConvertFrom (context, culture, value);
+ }
+
+ font = (string)value;
+ font.Trim();
+
+ if (font.Length == 0) {
+ return null;
+ }
+
+ if (culture == null) {
+ culture = CultureInfo.CurrentCulture;
+ }
+
+ // Format is FontFamily, size[<units>[, style=1,2,3]]
+ // This is a bit tricky since the comma can be used for styles and fields
+ fields = font.Split(new char[] {culture.TextInfo.ListSeparator[0]});
+ if (fields.Length < 1) {
+ throw new ArgumentException("Failed to parse font format");
+ }
+
+ font = fields[0];
+ f_size = 8f;
+ units = "px";
+ f_unit = GraphicsUnit.Pixel;
+ if (fields.Length > 1) { // We have a size
+ for (int i = 0; i < fields[1].Length; i++) {
+ if (Char.IsLetter(fields[1][i])) {
+ f_size = (float)TypeDescriptor.GetConverter(typeof(float)).ConvertFromString(context, culture, fields[1].Substring(0, i));
+ units = fields[1].Substring(i);
+ break;
+ }
+ }
+ if (units == "display") {
+ f_unit = GraphicsUnit.Display;
+ } else if (units == "doc") {
+ f_unit = GraphicsUnit.Document;
+ } else if (units == "pt") {
+ f_unit = GraphicsUnit.Point;
+ } else if (units == "in") {
+ f_unit = GraphicsUnit.Inch;
+ } else if (units == "mm") {
+ f_unit = GraphicsUnit.Millimeter;
+ } else if (units == "px") {
+ f_unit = GraphicsUnit.Pixel;
+ } else if (units == "world") {
+ f_unit = GraphicsUnit.World;
+ }
+ }
+
+ f_style = FontStyle.Regular;
+ if (fields.Length > 2) { // We have style
+ string compare;
+
+ for (int i = 2; i < fields.Length; i++) {
+ compare = fields[i];
+
+ if (compare.IndexOf("Regular") != -1) {
+ f_style |= FontStyle.Regular;
+ }
+ if (compare.IndexOf("Bold") != -1) {
+ f_style |= FontStyle.Bold;
+ }
+ if (compare.IndexOf("Italic") != -1) {
+ f_style |= FontStyle.Italic;
+ }
+ if (compare.IndexOf("Strikeout") != -1) {
+ f_style |= FontStyle.Strikeout;
+ }
+ if (compare.IndexOf("Underline") != -1) {
+ f_style |= FontStyle.Underline;
+ }
+ }
+ }
+
+ return new Font (font, f_size, f_style, f_unit);
+ }
+
+ public override object CreateInstance (ITypeDescriptorContext context, IDictionary propertyValues)
+ {
+ Object value;
+ byte charSet = 1;
+ float size = 8;
+ String name = null;
+ bool vertical = false;
+ FontStyle style = FontStyle.Regular;
+ FontFamily fontFamily = null;
+ GraphicsUnit unit = GraphicsUnit.Point;
+
+ if ((value = propertyValues ["GdiCharSet"]) != null)
+ charSet = (byte) value;
+
+ if ((value = propertyValues ["Size"]) != null)
+ size = (float) value;
+
+ if ((value = propertyValues ["Unit"]) != null)
+ unit = (GraphicsUnit) value;
+
+ if ((value = propertyValues ["Name"]) != null)
+ name = (String) value;
+
+ if ((value = propertyValues ["GdiVerticalFont"]) != null)
+ vertical = (bool) value;
+
+ if ((value = propertyValues ["Bold"]) != null) {
+ bool bold = (bool) value;
+ if (bold == true)
+ style |= FontStyle.Bold;
+ }
+
+ if ((value = propertyValues ["Italic"]) != null) {
+ bool italic = (bool) value;
+ if (italic == true)
+ style |= FontStyle.Italic;
+ }
+
+ if ((value = propertyValues ["Strikeout"]) != null) {
+ bool strike = (bool) value;
+ if (strike == true)
+ style |= FontStyle.Strikeout;
+ }
+
+ if ((value = propertyValues ["Underline"]) != null) {
+ bool underline = (bool) value;
+ if (underline == true)
+ style |= FontStyle.Underline;
+ }
+
+ /* ?? Should default font be culture dependent ?? */
+ if (name == null)
+ fontFamily = new FontFamily ("Tahoma");
+ else {
+ name = name.ToLower ();
+ FontCollection collection = new InstalledFontCollection ();
+ FontFamily [] installedFontList = collection.Families;
+ foreach (FontFamily font in installedFontList) {
+ if (name == font.Name.ToLower ()) {
+ fontFamily = font;
+ break;
+ }
+ }
+
+ // font family not found in installed fonts
+ if (fontFamily == null) {
+ collection = new PrivateFontCollection ();
+ FontFamily [] privateFontList = collection.Families;
+ foreach (FontFamily font in privateFontList) {
+ if (name == font.Name.ToLower ()) {
+ fontFamily = font;
+ break;
+ }
+ }
+ }
+
+ // font family not found in private fonts also
+ if (fontFamily == null)
+ fontFamily = FontFamily.GenericSansSerif;
+ }
+
+ return new Font (fontFamily, size, style, unit, charSet, vertical);
+ }
+
+ public override bool GetCreateInstanceSupported (ITypeDescriptorContext context)
+ {
+ return true;
+ }
+
+ public override PropertyDescriptorCollection GetProperties
+ (ITypeDescriptorContext context,
+ object value, Attribute [] attributes)
+ {
+ if (value is Font)
+ return TypeDescriptor.GetProperties (value, attributes);
+
+ return base.GetProperties (context, value, attributes);
+ }
+
+ public override bool GetPropertiesSupported (ITypeDescriptorContext context)
+ {
+ return true;
+ }
+
+ public sealed class FontNameConverter : TypeConverter
+#if NET_2_0
+ , IDisposable
+#endif
+ {
+ FontFamily [] fonts;
+
+ public FontNameConverter ()
+ {
+ fonts = FontFamily.Families;
+ }
+#if NET_2_0
+ void IDisposable.Dispose ()
+ {
+ }
+#endif
+ public override bool CanConvertFrom (ITypeDescriptorContext context, Type sourceType)
+ {
+ if (sourceType == typeof (string))
+ return true;
+
+ return base.CanConvertFrom (context, sourceType);
+ }
+
+ public override object ConvertFrom (ITypeDescriptorContext context, CultureInfo culture, object value)
+ {
+ if (value is string)
+ return value;
+ return base.ConvertFrom (context, culture, value);
+ }
+
+ public override StandardValuesCollection GetStandardValues (ITypeDescriptorContext context)
+ {
+ string [] values = new string [fonts.Length];
+ for (int i = fonts.Length; i > 0;){
+ i--;
+ values [i] = fonts [i].Name;
+ }
+
+ return new TypeConverter.StandardValuesCollection (values);
+ }
+
+ public override bool GetStandardValuesExclusive (ITypeDescriptorContext context)
+ {
+ // We allow other values other than those in the font list.
+ return false;
+ }
+
+ public override bool GetStandardValuesSupported (ITypeDescriptorContext context)
+ {
+ // Yes, we support picking an element from the list.
+ return true;
+ }
+ }
+
+ public class FontUnitConverter : EnumConverter
+ {
+ public FontUnitConverter () : base (typeof (GraphicsUnit)) {}
+
+ public override StandardValuesCollection GetStandardValues (ITypeDescriptorContext context)
+ {
+ return base.GetStandardValues (context);
+ }
+
+ }
+ }
+}