unit uViewFiltrosStock;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, dxLayoutControl, cxControls, uViewControlGrid,
  cxGraphics, cxContainer, cxEdit, cxTextEdit, cxMaskEdit, cxDropDownEdit,
  cxStyles, cxCustomData, cxFilter, cxData, cxDataStorage, DB, cxDBData,
  cxGridLevel, cxClasses, cxGridCustomView, cxGridCustomTableView,
  cxGridTableView, cxGridDBTableView, cxGrid, cxCheckComboBox, StdCtrls,
  Mask, JvExMask, JvToolEdit, JvCombobox;

type
  IViewFiltrosStock = interface
    ['{ABC745C3-64F0-44E4-AF4B-118AE5060150}']
    procedure SetFocusedView (const Value : TcxGridDBTableView);
    function GetFocusedView : TcxGridDBTableView;
    property FocusedView : TcxGridDBTableView read GetFocusedView write SetFocusedView;
    procedure Refresh;
  end;

  TfrViewFiltrosStock = class(TFrame, IViewFiltrosStock)
    dxLayoutControl1Group_Root: TdxLayoutGroup;
    dxLayoutControl1: TdxLayoutControl;
    cbColeccion: TcxComboBox;
    dxLayoutControl1Item1: TdxLayoutItem;
    dxLayoutControl1Item3: TdxLayoutItem;
    ccbCentro: TJvCheckedComboBox;
  private
    FFocusedView : TcxGridDBTableView;
    function GetFilterValueList(AColumnIndex: Integer): TStringList;
  protected
    procedure RellenarFiltros;
    procedure SetFocusedView (const Value : TcxGridDBTableView);
    function GetFocusedView : TcxGridDBTableView;
  public
    CentroColumnIndex : Integer;
    ColeccionColumnIndex : Integer;
    property FocusedView : TcxGridDBTableView read GetFocusedView write SetFocusedView;
    procedure Refresh;
  end;


implementation

{$R *.dfm}

{ TfrViewFiltrosStock }

function TfrViewFiltrosStock.GetFilterValueList(AColumnIndex: Integer): TStringList;
var
  AValueList : TcxDataFilterValueList;
  i : Integer;
begin
  Result := TStringList.Create;
  
  if AColumnIndex < 0 then
    Exit;

  AValueList := TcxDataFilterValueList.Create(FFocusedView.DataController.Filter);
  try
    AValueList.Load(AColumnIndex);
    for i := 0 to AValueList.Count - 1 do
      Result.Add(AValueList[i].DisplayText);
  finally
    FreeAndNil(AValueList);
  end;
end;

function TfrViewFiltrosStock.GetFocusedView: TcxGridDBTableView;
begin
  Result := FFocusedView;
end;

procedure TfrViewFiltrosStock.Refresh;
begin
  inherited;
  RellenarFiltros;
end;

procedure TfrViewFiltrosStock.RellenarFiltros;
begin
  if ColeccionColumnIndex >= 0 then
    with cbColeccion.Properties do
    begin
      Items.Clear;
      Items.AddStrings(GetFilterValueList(ColeccionColumnIndex));
      Items.Delete(1);
      Items.Strings[0] := 'Todos';
      cbColeccion.Text := 'Todos';
    end;

  if CentroColumnIndex >= 0 then
    with ccbCentro do
    begin
      Items.Clear;
      Items.AddStrings(GetFilterValueList(CentroColumnIndex));
      Items.Delete(1);
      Items.Strings[0] := 'Todos';
      Checked[0] := True;
    end;
end;

procedure TfrViewFiltrosStock.SetFocusedView(
  const Value: TcxGridDBTableView);
begin
  FFocusedView := Value;
end;

end.