unit fparameters;
(* ***** BEGIN LICENSE BLOCK *****
 * Copyright (C) 2004 Durand Emmanuel
 * Copyright (C) 2004 Burgel Eric
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Contact :
 *   filters@edurand.com
 *   filters@burgel.com
 *
 * ***** END LICENSE BLOCK ***** *)

{
 edurand (filters@edurand.com)
 eburgel (filters@burgel.com)
}

interface
uses
  Classes, Windows, SysUtils, image;


type

  //*** Parameters description ***
  EParameterInvalidDataType = class(Exception);
  EParameterNotFound = class(Exception);
  EParameterValueOutOfBound = class(Exception);

  TDataType = (dtImage,dtInteger,dtIntegerArray2D,dtString,dtBoolean,dtSingle,
    dtImages,dtArrayIntegers,dtArraySingles,dtArrayPointers,dtPointer);

  TParameter = class(TObject)
    DataType : TDataType;
    Name : String;
    Help : String;
    constructor Create( aName, aHelp : String);
  end;

  TParameterBoolean = class(TParameter)
  public
    Value : Boolean;
    constructor Create(aName,aDescription : String; defaultValue:Boolean);
  end;

  TParameterInteger = class(TParameter)
  public
    Value : Int64;
    Min, Max : Int64;
    constructor Create(aName,aDescription : String;aMin,aMax,defaultValue:Int64);
  end;

  TParameterSingle = class(TParameter)
  public
    Value : single;
    Min, Max : Single;
    constructor Create(aName,aDescription : String;aMin,aMax,defaultValue:Single);
  end;

  TParameterString = class(TParameter)
  public
    Value : String;
    constructor Create(aName,aDescription : String;defaultValue:String);
  end;

  TParameterImage = class(TParameter)
  public
    Image : PBitmap32;
    constructor Create(aName,aDescription : String);
  end;

  TParameterImages = class(TParameter)
  public
    Images : ArrayOfPBitmap32;
    constructor Create(aName,aDescription : String);
  end;

  TParameterArrayIntegers = class(TParameter)
  public
    Integers : array of Integer;
    constructor Create(aName,aDescription : String);
  end;

  TParameterArraySingles = class(TParameter)
  public
    Singles : array of Single;
    constructor Create(aName,aDescription : String);
  end;

  TParameterArrayPointers = class(TParameter)
  public
    Pointers : array of Pointer;
    constructor Create(aName,aDescription : String);
  end;

  TParameterPointer = class(TParameter)
  public
    Value : Pointer;
    constructor Create(aName,aDescription : String);
  end;


implementation


{ TParameter }

constructor TParameter.Create(aName, aHelp: String);
begin
  Name := aName;
  Help := aHelp;
end;


constructor  TParameterBoolean.Create(aName,aDescription : String;
  defaultValue:Boolean);
Begin
  inherited Create(aName,aDescription);
  DataType:=dtBoolean;
  Value:=defaultValue;
end;

{ TParameterInteger }
constructor TParameterInteger.Create(aName, aDescription: String; aMin, aMax,
  defaultValue: Int64);
begin
  inherited Create(aName,aDescription);
  DataType:=dtInteger;
  Min:=aMin;
  Max:=aMax;
  Value:=defaultValue;
end;

{ TParameterSingle }
constructor TParameterSingle.Create(aName, aDescription: String; aMin, aMax,
  defaultValue: Single);
begin
  inherited Create(aName,aDescription);
  DataType:=dtSingle;
  Min:=aMin;
  Max:=aMax;
  Value:=defaultValue;
end;

{ TParameterString }

constructor TParameterString.Create(aName, aDescription: String; defaultValue: String);
begin
  inherited Create(aName,aDescription);
  DataType:=dtString;
  Value:=defaultValue;
end;

constructor TParameterImage.Create(aName, aDescription: String);
begin
  inherited Create(aName,aDescription);
  DataType:=dtImage;
end;

constructor TParameterImages.Create(aName, aDescription: String);
begin
  inherited Create(aName,aDescription);
  DataType:=dtImages;
end;

constructor TParameterArrayIntegers.Create(aName, aDescription: String);
begin
  inherited Create(aName,aDescription);
  DataType:=dtArrayIntegers;
end;

constructor TParameterArraySingles.Create(aName, aDescription: String);
begin
  inherited Create(aName,aDescription);
  DataType:=dtArraySingles;
end;

constructor TParameterArrayPointers.Create(aName, aDescription: String);
begin
  inherited Create(aName,aDescription);
  DataType:=dtArrayPointers;
end;

constructor TParameterPointer.Create(aName, aDescription: String);
begin
  inherited Create(aName,aDescription);
  DataType:=dtPointer;
end;


end.