jvcllaz: Add unit JvRGBToHtml to the JvNet package

git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@8823 8e941d3f-bd1b-0410-a28a-d453659cc2b4

components/jvcllaz/packages/jvnetlazr.lpk

@@ -15,7 +15,7 @@
     <Description Value="JVCL net components (runtime code): HTML parser, FormToHtml converter"/>
     <License Value="The JVCL is released in accordance with the MPL 1.1 license. To get your own copy or read it, go to http://www.mozilla.org/MPL/MPL-1.1.html. "/>
     <Version Major="1" Release="8"/>
-    <Files Count="4">
+    <Files Count="5">
       <Item1>
         <Filename Value="..\run\JvNet\jvhtmlparser.pas"/>
         <UnitName Value="JvHtmlParser"/>
@@ -32,6 +32,10 @@
         <Filename Value="..\run\JvNet\jvstrtohtml.pas"/>
         <UnitName Value="JvStrToHtml"/>
       </Item4>
+      <Item5>
+        <Filename Value="..\run\JvNet\jvrgbtohtml.pas"/>
+        <UnitName Value="JvRgbToHtml"/>
+      </Item5>
     </Files>
     <CompatibilityMode Value="True"/>
     <RequiredPkgs Count="1">

components/jvcllaz/run/JvNet/jvrgbtohtml.pas

@@ -0,0 +1,108 @@
+{-----------------------------------------------------------------------------
+The contents of this file are subject to the Mozilla Public License
+Version 1.1 (the "License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+http://www.mozilla.org/MPL/MPL-1.1.html
+
+Software distributed under the License is distributed on an "AS IS" basis,
+WITHOUT WARRANTY OF ANY KIND, either expressed or implied. See the License for
+the specific language governing rights and limitations under the License.
+
+The Original Code is: JvRgbToHtml.PAS, released on 2001-02-28.
+
+The Initial Developer of the Original Code is S�bastien Buysse [sbuysse att buypin dott com]
+Portions created by S�bastien Buysse are Copyright (C) 2001 S�bastien Buysse.
+All Rights Reserved.
+
+Contributor(s): Michael Beck [mbeck att bigfoot dott com].
+
+You may retrieve the latest version of this file at the Project JEDI's JVCL home page,
+located at http://jvcl.delphi-jedi.org
+
+Known Issues:
+-----------------------------------------------------------------------------}
+// $Id$
+
+unit JvRgbToHtml;
+
+interface
+
+uses
+  LCLIntf, SysUtils, Classes, Graphics;
+
+type
+  TJvRGBToHTML = class(TComponent)
+  private
+    FHTMLColor: string;
+    FRGBColor: TColor;
+    procedure SetRGBColor(const Value: TColor);
+    procedure SetHTMLColor(const Value: string);
+  public
+    constructor Create(AOwner: TComponent); override;
+  published
+    property RGBColor: TColor read FRGBColor write SetRGBColor default clBlack;
+    property HTMLColor: string read FHTMLColor write SetHTMLColor;
+  end;
+
+function RgbToHtml(Value: TColor): string;
+function HtmlToRgb(const Value: string): TColor;
+
+implementation
+
+function RgbToHtml(Value: TColor): string;
+begin
+  with TJvRGBToHTML.Create(nil) do
+    try
+      RGBColor := Value;
+      Result := HTMLColor;
+    finally
+      Free;
+    end;
+end;
+
+function HtmlToRgb(const Value: string): TColor;
+begin
+  with TJvRGBToHTML.Create(nil) do
+    try
+      HTMLColor := Value;
+      Result := RGBColor;
+    finally
+      Free;
+    end;
+end;
+
+constructor TJvRGBToHTML.Create(AOwner: TComponent);
+begin
+  inherited Create(AOwner);
+  RGBColor := clBlack;
+end;
+
+procedure TJvRGBToHTML.SetRGBColor(const Value: TColor);
+var
+  Clr: TColor;
+begin
+  FRGBColor := Value;
+  Clr := ColorToRGB(Value);
+  FHTMLColor := IntToHex(GetRValue(Clr), 2) + IntToHex(GetGValue(Clr), 2) + IntToHex(GetBValue(Clr), 2);
+end;
+
+procedure TJvRGBToHTML.SetHTMLColor(const Value: string);
+var
+  C: TColor;
+  R, G, B: Byte;
+begin
+  try
+    if Length(Value) = 6 then
+    begin
+      R := StrToInt('$' + Copy(Value, 1, 2));
+      G := StrToInt('$' + Copy(Value, 3, 2));
+      B := StrToInt('$' + Copy(Value, 5, 2));
+      C := RGB(R, G, B);
+      FRGBColor := C;
+      FHTMLColor := Value;
+    end;
+  except
+  end;
+end;
+
+end.