unit uViewInventario;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, frxClass, frxPreview, cxStyles,
  cxCustomData, cxGraphics, cxFilter, cxData, cxDataStorage, cxEdit, DB,
  cxDBData, ActnList, uDADataTable, cxGridLevel, cxClasses, cxControls,
  cxGridCustomView, cxGridCustomTableView, cxGridTableView,
  cxGridDBTableView, cxGrid, StdCtrls, ExtCtrls, cxLabel, dxPSGlbl, dxPSUtl,
  dxPSEngn, dxPrnPg, dxBkgnd, dxWrap, dxPrnDev, dxPSCompsProvider, dxPSFillPatterns,
  dxPSEdgePatterns, cxIntlPrintSys3, dxPSCore, dxPScxCommon, dxPScxGridLnk, cxImage,
  cxImageComboBox, ImgList, PngImageList, cxTextEdit, Grids, DBGrids, cxDBLookupComboBox,
  cxButtonEdit, cxGridCustomPopupMenu, cxGridPopupMenu, uViewGrid,
  uBizInventario, uAlmacenesController;

type
  IViewInventario = interface(IViewGrid)
    ['{4BAE6CBE-4CBB-4103-B85E-80BE5310723A}']
    function GetInventario: IBizInventario;
    procedure SetInventario(const Value: IBizInventario);
    property Inventario: IBizInventario read GetInventario write SetInventario;
  end;

  TfrViewInventario = class(TfrViewGrid, IViewInventario)
    cxGridDBTableView1: TcxGridDBTableView;
    PngImageList: TPngImageList;
    cxStyleArticuloReservado: TcxStyle;
    cxGridViewRecID: TcxGridDBColumn;
    cxGridViewID: TcxGridDBColumn;
    cxGridViewID_ALMACEN: TcxGridDBColumn;
    cxGridViewID_ARTICULO: TcxGridDBColumn;
    cxGridViewCANTIDAD: TcxGridDBColumn;
    cxGridViewID_PEDIDO_PROVEEDOR: TcxGridDBColumn;
    cxGridViewID_PEDIDO_CLIENTE: TcxGridDBColumn;
    cxGridViewREFERENCIA_PED_CLI: TcxGridDBColumn;
    cxGridViewDESCRIPCION: TcxGridDBColumn;
    cxGridViewID_EMPRESA: TcxGridDBColumn;
    cxGridViewREFERENCIA_CLIENTE: TcxGridDBColumn;
    cxGridViewFAMILIA: TcxGridDBColumn;
    cxGridViewALMACEN: TcxGridDBColumn;
    cxGridViewREFERENCIA_PROVEEDOR: TcxGridDBColumn;
//    procedure SelectionChanged(Sender: TcxCustomGridTableView); override;
    procedure cxGridActiveTabChanged(Sender: TcxCustomGrid; ALevel: TcxGridLevel);
{    procedure cxGridViewCODIGOCustomDrawCell(Sender: TcxCustomGridTableView;
            ACanvas: TcxCanvas; AViewInfo: TcxGridTableDataCellViewInfo; var
            ADone: Boolean);
}            
    procedure cxGridViewStylesGetContentStyle(Sender: TcxCustomGridTableView;
            ARecord: TcxCustomGridRecord; AItem: TcxCustomGridTableItem; out
            AStyle: TcxStyle);
  private
    FAlmacenesController : IAlmacenesController;

  protected
    FNivelFiltrado : TcxFilterCriteriaItemList;
    FInventario: IBizInventario;
    function GetInventario: IBizInventario;
    procedure SetInventario(const Value: IBizInventario);
    procedure FilterChanged(Sender : TObject); override;
  public
    property Inventario: IBizInventario read GetInventario write SetInventario;
    constructor Create(AOwner: TComponent); override;
    destructor Destroy; override;
  end;

implementation

uses uDataModuleInventario, schInventarioClient_Intf, uBizAlmacenes;
//, uDBSelectionList, uBizAlmacenes, uDataModuleAlmacenes;

{$R *.dfm}

constructor TfrViewInventario.Create(AOwner: TComponent);
begin
  inherited;
//  Self.MultiSelection := True;
  FAlmacenesController := TAlmacenesController.Create;
end;

procedure TfrViewInventario.cxGridActiveTabChanged(Sender: TcxCustomGrid; ALevel: TcxGridLevel);
begin
  inherited;
  FreeAndNil(FNivelFiltrado);
  FilterChanged(self);
end;

{procedure TfrViewInventario.cxGridViewCODIGOCustomDrawCell(Sender:
        TcxCustomGridTableView; ACanvas: TcxCanvas; AViewInfo:
        TcxGridTableDataCellViewInfo; var ADone: Boolean);
var
  R: TRect;
begin
  inherited;
  R := AViewInfo.ContentBounds;
  ACanvas.FillRect(R);
  if Length(AViewInfo.Text) = 0 then
    ACanvas.DrawImage(PngImageList, R.Left, R.Top, 0)
  else
    ACanvas.DrawImage(PngImageList, R.Left, R.Top, 1);
  ADone := True;
end;}

procedure TfrViewInventario.cxGridViewStylesGetContentStyle(Sender:
        TcxCustomGridTableView; ARecord: TcxCustomGridRecord; AItem:
        TcxCustomGridTableItem; out AStyle: TcxStyle);
var
  IndiceCol: Integer;
  AMontaje: string;
begin
  inherited;
{
  if Assigned(ARecord) then
  begin
    IndiceCol := (Sender as TcxGridDBTableView).GetColumnByFieldName(fld_ARTICULOSREFERENCIAMONTAJE).Index;
    AMontaje := VarToStr(ARecord.DisplayTexts[IndiceCol]);
    if (Length(AMontaje) > 0) then
      AStyle := cxStyleArticuloReservado;
  end;
}
end;

destructor TfrViewInventario.Destroy;
begin
  FAlmacenesController := Nil;
  FInventario := Nil;
  inherited;
end;

function TfrViewInventario.GetInventario: IBizInventario;
begin
  Result := FInventario;
end;

procedure TfrViewInventario.SetInventario(const Value: IBizInventario);
var
  Nivel: TcxGridLevel;
  i: Integer;
  AAlmacenes : IBizAlmacen;

begin
  FInventario := Value;
  if Assigned(FInventario) then
  begin
    dsDataSource.DataTable := FInventario.DataTable;

    try
      if Assigned(FAlmacenesController) then
      begin
        AAlmacenes := FAlmacenesController.BuscarTodos;
        AAlmacenes.DataTable.Active := True;
        AAlmacenes.First;
        while not AAlmacenes.EOF do
        begin
          Nivel := cxGrid.Levels.Add;
          Nivel.Caption := AAlmacenes.NOMBRE;
          Nivel.Tag := AAlmacenes.ID;
          AAlmacenes.Next;
        end;
      end;
    finally
      AAlmacenes := Nil;
    end;
  end;
end;

{procedure TfrViewInventario.SelectionChanged(Sender: TcxCustomGridTableView);
var
  ABookmark : Pointer;
  i, pos: Integer;

begin
  inherited;

  pos := (Sender as TcxGridDBTableView).GetColumnByFieldName('ID').Index;
  if FInventario <> NIL then
  begin
    FInventario.DataTable.DisableControls;
    ABookmark := FInventario.DataTable.GetBookMark;
    (FInventario as ISelectedRowList).SelectedRows.Clear;
    for i:=0 to Sender.Controller.SelectedRecordCount-1 do
    begin
      FInventario.DataTable.Locate('ID', Sender.Controller.SelectedRecords[i].Values[pos],[]);
      (FInventario as ISelectedRowList).SelectedRows.CurrentRowSelected := True;
    end;
    (FInventario as ISelectedRowList).SelectedRows.Count;
    FInventario.DataTable.GotoBookmark(ABookmark);
    FInventario.DataTable.FreeBookmark(ABookmark);
    FInventario.DataTable.EnableControls;
  end;
end;
}

procedure TfrViewInventario.FilterChanged(Sender: TObject);
var
  AItemList: TcxFilterCriteriaItemList;
  AItemList2: TcxFilterCriteriaItemList;
  CodigoAlmacen: String;
begin
  inherited;

  cxGridView.DataController.Filter.BeginUpdate;

  AItemList := cxGridView.DataController.Filter.Root;
  AItemList2 := AItemList.AddItemList(fboAnd);
  FNivelFiltrado := AItemList2;

  CodigoAlmacen := IntToStr(cxGrid.Levels.Items[cxGrid.ActiveLevel.Index].Tag);
  if CodigoAlmacen <> '-1' then
     AItemList2.AddItem(cxGridViewID_ALMACEN, foEqual, CodigoAlmacen, CodigoAlmacen);
  AItemList := AItemList2;

  if cxGridView.DataController.Filter.IsEmpty
  then cxGridView.DataController.Filter.Active := False
  else cxGridView.DataController.Filter.Active := True;

  cxGridView.DataController.Filter.EndUpdate;
  cxGrid.ActiveLevel.GridView := cxGridView;
end;

end.