//
// System.Drawing.ColorTranslator.cs
//
-// Copyright (C) 2001 Ximian, Inc. http://www.ximian.com
-// Copyright (C) 2004 Novell, Inc. http://www.novell.com
-//
// Authors:
// Dennis Hayes (dennish@raytek.com)
// Ravindra (rkumar@novell.com)
+// Sebastien Pouliot <sebastien@ximian.com>
//
-//
-
-//
-// Copyright (C) 2004 Novell, Inc (http://www.novell.com)
+// Copyright (C) 2001 Ximian, Inc. http://www.ximian.com
+// Copyright (C) 2004,2006-2007 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
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
-using System;
using System.ComponentModel;
+using System.Globalization;
-namespace System.Drawing
-{
- public sealed class ColorTranslator
- {
- private ColorTranslator () { }
+namespace System.Drawing {
- public static Color FromHtml (string HtmlFromColor)
+ public sealed class ColorTranslator {
+
+ private ColorTranslator ()
{
- TypeConverter converter = TypeDescriptor.GetConverter (typeof (Color));
- return (Color) converter.ConvertFromString (HtmlFromColor);
}
- public static Color FromOle (int OleFromColor)
+ public static Color FromHtml (string htmlColor)
{
- // OleColor format is BGR
- int R = OleFromColor & 0xFF;
- int G = (OleFromColor >> 8) & 0xFF;
- int B = (OleFromColor >> 16) & 0xFF;
-
- Color retcolor = Color.FromArgb (255, R, G, B);
- foreach (Color c in Color.NamedColors.Values) {
- if (c == retcolor)
- return c;
+ if ((htmlColor == null) || (htmlColor.Length == 0))
+ return Color.Empty;
+
+ switch (htmlColor.ToLowerInvariant ()) {
+ case "buttonface":
+ case "threedface":
+ return SystemColors.Control;
+ case "buttonhighlight":
+ case "threedlightshadow":
+ return SystemColors.ControlLightLight;
+ case "buttonshadow":
+ return SystemColors.ControlDark;
+ case "captiontext":
+ return SystemColors.ActiveCaptionText;
+ case "threeddarkshadow":
+ return SystemColors.ControlDarkDark;
+ case "threedhighlight":
+ return SystemColors.ControlLight;
+ case "background":
+ return SystemColors.Desktop;
+ case "buttontext":
+ return SystemColors.ControlText;
+ case "infobackground":
+ return SystemColors.Info;
+ // special case for Color.LightGray versus html's LightGrey (#340917)
+ case "lightgrey":
+ return Color.LightGray;
}
+
+ TypeConverter converter = TypeDescriptor.GetConverter (typeof (Color));
+ return (Color) converter.ConvertFromString (htmlColor);
+ }
- foreach (Color c in Color.SystemColors.Values) {
- if (c == retcolor)
- return c;
- }
+ internal static Color FromBGR (int bgr)
+ {
+ Color result = Color.FromArgb (0xFF, (bgr & 0xFF), ((bgr >> 8) & 0xFF), ((bgr >> 16) & 0xFF));
+ Color known = KnownColors.FindColorMatch (result);
+ return (known.IsEmpty) ? result : known;
+ }
- return retcolor;
+ public static Color FromOle (int oleColor)
+ {
+ // OleColor format is BGR
+ return FromBGR (oleColor);
}
- public static Color FromWin32 (int Win32FromColor)
+ public static Color FromWin32 (int win32Color)
{
// Win32Color format is BGR
- int R = Win32FromColor & 0xFF;
- int G = (Win32FromColor >> 8) & 0xFF;
- int B = (Win32FromColor >> 16) & 0xFF;
-
- Color retcolor = Color.FromArgb (255, R, G, B);
- foreach (Color c in Color.NamedColors.Values) {
- if (c == retcolor)
- return c;
- }
-
- foreach (Color c in Color.SystemColors.Values) {
- if (c == retcolor)
- return c;
- }
-
- return retcolor;
+ return FromBGR (win32Color);
}
public static string ToHtml (Color c)
{
- KnownColor kc;
if (c.IsEmpty)
- return "";
+ return String.Empty;
- string result;
- if(c.IsSystemColor) {
- kc = c.ToKnownColor();
+ if (c.IsSystemColor) {
+ KnownColor kc = c.ToKnownColor ();
switch (kc) {
case KnownColor.ActiveBorder:
- return "activeborder";
case KnownColor.ActiveCaption:
- return "activecaption";
+ case KnownColor.AppWorkspace:
+ case KnownColor.GrayText:
+ case KnownColor.Highlight:
+ case KnownColor.HighlightText:
+ case KnownColor.InactiveBorder:
+ case KnownColor.InactiveCaption:
+ case KnownColor.InactiveCaptionText:
+ case KnownColor.InfoText:
+ case KnownColor.Menu:
+ case KnownColor.MenuText:
+ case KnownColor.ScrollBar:
+ case KnownColor.Window:
+ case KnownColor.WindowFrame:
+ case KnownColor.WindowText:
+ return KnownColors.GetName (kc).ToLower (CultureInfo.InvariantCulture);
+
case KnownColor.ActiveCaptionText:
return "captiontext";
- case KnownColor.AppWorkspace:
- return "appworkspace";
case KnownColor.Control:
return "buttonface";
case KnownColor.ControlDark:
return "buttontext";
case KnownColor.Desktop:
return "background";
- case KnownColor.GrayText:
- return "graytext";
- case KnownColor.Highlight:
case KnownColor.HotTrack:
return "highlight";
- case KnownColor.HighlightText:
- return "highlighttext";
- case KnownColor.InactiveBorder:
- return "inactiveborder";
- case KnownColor.InactiveCaption:
- return "inactivecaption";
- case KnownColor.InactiveCaptionText:
- return "inactivecaptiontext";
case KnownColor.Info:
return "infobackground";
- case KnownColor.InfoText:
- return "infotext";
- case KnownColor.Menu:
- return "menu";
- case KnownColor.MenuText:
- return "menutext";
- case KnownColor.ScrollBar:
- return "scrollbar";
- case KnownColor.Window:
- return "window";
- case KnownColor.WindowFrame:
- return "windowframe";
- case KnownColor.WindowText:
- return "windowtext";
+
default:
return String.Empty;
}
}
if (c.IsNamedColor) {
- if (c == Color.LightGray) {
- result = "LightGrey";
- }
+ if (c == Color.LightGray)
+ return "LightGrey";
else
- result = c.Name;
+ return c.Name;
}
- else
- result = String.Format ("#{0:X2}{1:X2}{2:X2}", c.R, c.G, c.B);
- return result;
+ return FormatHtml (c.R, c.G, c.B);
}
- public static int ToOle (Color color)
+ static char GetHexNumber (int b)
{
- // OleColor format is BGR, same as Win32
+ return (char) (b > 9 ? 55 + b : 48 + b);
+ }
- return ((color.B << 16) | (color.G << 8) | color.R);
+ static string FormatHtml (int r, int g, int b)
+ {
+ char [] htmlColor = new char [7];
+ htmlColor [0] = '#';
+ htmlColor [1] = GetHexNumber ((r >> 4) & 15);
+ htmlColor [2] = GetHexNumber (r & 15);
+ htmlColor [3] = GetHexNumber ((g >> 4) & 15);
+ htmlColor [4] = GetHexNumber (g & 15);
+ htmlColor [5] = GetHexNumber ((b >> 4) & 15);
+ htmlColor [6] = GetHexNumber (b & 15);
+
+ return new string (htmlColor);
}
- public static int ToWin32 (Color color)
+ public static int ToOle (Color c)
{
- // Win32Color format is BGR, Same as OleColor
+ // OleColor format is BGR, same as Win32
+ return ((c.B << 16) | (c.G << 8) | c.R);
+ }
- return ((color.B << 16) | (color.G << 8) | color.R);
+ public static int ToWin32 (Color c)
+ {
+ // Win32Color format is BGR, Same as OleColor
+ return ((c.B << 16) | (c.G << 8) | c.R);
}
}
}
projects / mono.git / blobdiff