{********************************************************************}
{                                                                    }
{       Developer Express Visual Component Library                   }
{                   ExpressPivotGrid                                 }
{                                                                    }
{       Copyright (c) 2005-2009 Developer Express Inc.               }
{       ALL RIGHTS RESERVED                                          }
{                                                                    }
{   The entire contents of this file is protected by U.S. and        }
{   International Copyright Laws. Unauthorized reproduction,         }
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{   the code contained in this file is strictly prohibited and may   }
{   result in severe civil and criminal penalties and will be        }
{   prosecuted to the maximum extent possible under the law.         }
{                                                                    }
{   RESTRICTIONS                                                     }
{                                                                    }
{   THIS SOURCE CODE AND ALL RESULTING INTERMEDIATE FILES            }
{   (DCU, OBJ, DLL, ETC.) ARE CONFIDENTIAL AND PROPRIETARY TRADE     }
{   SECRETS OF DEVELOPER EXPRESS INC. THE REGISTERED DEVELOPER IS    }
{   LICENSED TO DISTRIBUTE THE EXPRESSPIVOTGRID AND ALL ACCOMPANYING }
{   VCL CONTROLS AS PART OF AN EXECUTABLE PROGRAM ONLY.              }
{                                                                    }
{   THE SOURCE CODE CONTAINED WITHIN THIS FILE AND ALL RELATED       }
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{                                                                    }
{   CONSULT THE END USER LICENSE AGREEMENT FOR INFORMATION ON        }
{   ADDITIONAL RESTRICTIONS.                                         }
{                                                                    }
{********************************************************************}

unit cxPivotGridDrillDownDataSet;

interface

uses
  Classes, SysUtils, DB, cxClasses, dxmdaset, cxCustomPivotGrid, cxPivotGridCustomDataSet;

type
  TcxCustomPivotGridDrillDownDataSet = class(TcxPivotGridCustomDataSet)
  private
    FDrillDownDatasource: TcxPivotGridCrossCellDataSource;
  protected
    procedure SelectionChanged(Sender: TcxCustomPivotGrid); override;

    procedure DoCreateData; override;
    procedure DoCreateFields; override;
    procedure DoPopulate; override;
  end;

  TcxPivotGridDrillDownDataSet = class(TcxCustomPivotGridDrillDownDataSet)
  published
    property PivotGrid;
    property SynchronizeData;
    property OnCreateField;
    property OnDataChanged;
  end;

implementation

uses
  cxCustomData;

{ TcxCustomPivotGridDrillDownDataSet }

procedure TcxCustomPivotGridDrillDownDataSet.DoPopulate;
var
  I, J: Integer;
begin
  inherited;

  for I := 0 to FDrillDownDatasource.RecordCount - 1 do
  begin
    Append;
    for J := 0 to FDrillDownDatasource.FieldCount - 1 do
      Fields[J+1{RecID}].Value := FDrillDownDatasource.Values[TcxDataRecordHandle(I), TcxDataItemHandle(J)];
    Post;
  end;
end;

procedure TcxCustomPivotGridDrillDownDataSet.DoCreateData;
begin
  FDrillDownDatasource := TcxPivotGridCrossCellDataSource(PivotGrid.CreateDrillDownDataSource);
  try
    inherited;
  finally
    FreeAndNil(FDrillDownDatasource);
  end;
end;

procedure TcxCustomPivotGridDrillDownDataSet.DoCreateFields;
var
  I: Integer;
begin
  for I := 0 to FDrillDownDatasource.FieldCount - 1 do
    DoCreateField(FDrillDownDatasource.PivotGridFields[I]);
end;

procedure TcxCustomPivotGridDrillDownDataSet.SelectionChanged(
  Sender: TcxCustomPivotGrid);
begin
  if SynchronizeData then
    CreateData;
end;

end.