unit uViewDetallesDTO;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, uViewDetallesBase, cxStyles, cxCustomData, cxGraphics, cxFilter,
  cxData, cxDataStorage, cxEdit, DB, cxDBData, cxImageComboBox, cxRichEdit,
  cxMaskEdit, cxCurrencyEdit, cxCheckBox, ImgList, PngImageList, uDADataTable,
  StdActns, ExtActns, ActnList, TB2Item, TBX, TB2Dock, TB2Toolbar, cxGridLevel,
  cxGridCustomTableView, cxGridTableView, cxGridDBTableView, cxClasses,
  cxControls, cxGridCustomView, cxGrid, ComCtrls, StdCtrls, JvExStdCtrls,
  JvCombobox, JvColorCombo, ToolWin, uDAInterfaces;

type
  IViewDetallesDTO = interface(IViewDetallesBase)
  ['{0D221FFB-9F43-48FC-9AE7-0AD0F0791AD1}']
  end;

  TfrViewDetallesDTO = class(TfrViewDetallesBase, IViewDetallesDTO)
    cxGridViewDESCUENTO: TcxGridDBColumn;
    cxGridViewIMPORTEPORTE: TcxGridDBColumn;
    cxGridViewIMPORTENETO: TcxGridDBColumn;
    cxGridViewDECREMENTO: TcxGridDBColumn;
    cxGridViewINCREMENTO: TcxGridDBColumn;
    cxGridViewIMP_UNIDAD_DTO: TcxGridDBColumn;
    procedure cxGridViewIMPORTENETOGetDisplayText(Sender: TcxCustomGridTableItem; ARecord: TcxCustomGridRecord;
      var AText: string);
    procedure cxGridViewIMPORTENETOPropertiesValidate(Sender: TObject;
      var DisplayValue: Variant; var ErrorText: TCaption; var Error: Boolean);
    procedure cxGridViewIMP_UNIDAD_DTOGetDisplayText(
      Sender: TcxCustomGridTableItem; ARecord: TcxCustomGridRecord;
      var AText: string);
  protected
    function HayQueRecalcular(AItem: TcxCustomGridTableItem): Boolean; override;
  end;

implementation
{$R *.dfm}

uses uNumUtils, uCalculosUtils;

{ TfrViewDetallesDTO }

procedure TfrViewDetallesDTO.cxGridViewIMPORTENETOGetDisplayText(Sender: TcxCustomGridTableItem; ARecord: TcxCustomGridRecord;
  var AText: string);
var
  ImporteNeto, Incremento, Decremento : Double;
  NumDecimales : Smallint;

begin
  //Se encarga de mostrar el campo calculado de importe neto
  ImporteNeto := -1;
  Incremento := 0;
  Decremento := 0;

  NumDecimales := TcxCurrencyEditProperties(Sender.Properties).DecimalPlaces;

  if not VarIsNull(ARecord.Values[cxGridViewIMPORTEUNIDAD.Index]) then
  begin
     ImporteNeto := ARecord.Values[cxGridViewIMPORTEUNIDAD.Index];

     if not VarIsNull(ARecord.Values[cxGridViewINCREMENTO.Index]) then
        Incremento := ARecord.Values[cxGridViewINCREMENTO.Index];

     if not VarIsNull(ARecord.Values[cxGridViewDECREMENTO.Index]) then
        Decremento := ARecord.Values[cxGridViewDECREMENTO.Index];

     ImporteNeto := CalcularImporteNeto(ARecord.Values[cxGridViewIMPORTEUNIDAD.Index], Incremento, Decremento, NumDecimales);
  end;

  if (ImporteNeto <> -1) then
  begin
    if (NumDecimales = 2) then
      AText := FormatCurr(',0.00 €;-,0.00 €', FloatToCurr(ImporteNeto))
    else
      AText := FormatCurr(',0.0000 €;-,0.0000 €', FloatToCurr(ImporteNeto))
  end;
end;

procedure TfrViewDetallesDTO.cxGridViewIMPORTENETOPropertiesValidate(Sender: TObject; var DisplayValue: Variant; var ErrorText: TCaption;
  var Error: Boolean);
begin
  inherited;
{  if not VarIsNull(DisplayValue) then
  begin
    cxGridViewDESCUENTO.DataBinding.Field.Value := ((cxGridViewIMPORTEUNIDAD.DataBinding.Field.Value - DisplayValue) * 100) / cxGridViewIMPORTEUNIDAD.DataBinding.Field.Value;
    Controller.ActualizarTotales(Detalles);
  end;
}  
end;

procedure TfrViewDetallesDTO.cxGridViewIMP_UNIDAD_DTOGetDisplayText( Sender: TcxCustomGridTableItem; ARecord: TcxCustomGridRecord;
  var AText: string);
var
  ImporteUnidadDTO, ImporteNeto, Incremento, Decremento, Descuento : Double;
  NumDecimales : Smallint;

begin
  //Se encarga de mostrar el campo calculado de importe neto
  ImporteNeto := -1;
  Incremento := 0;
  Decremento := 0;
  Descuento := 0;

  NumDecimales := TcxCurrencyEditProperties(Sender.Properties).DecimalPlaces;


  if not VarIsNull(ARecord.Values[cxGridViewIMPORTEUNIDAD.Index]) then
  begin
     if not VarIsNull(ARecord.Values[cxGridViewINCREMENTO.Index]) then
        Incremento := ARecord.Values[cxGridViewINCREMENTO.Index];

     if not VarIsNull(ARecord.Values[cxGridViewDECREMENTO.Index]) then
        Decremento := ARecord.Values[cxGridViewDECREMENTO.Index];

     ImporteNeto := CalcularImporteNeto(ARecord.Values[cxGridViewIMPORTEUNIDAD.Index], Incremento, Decremento, NumDecimales);

     if not VarIsNull(ARecord.Values[cxGridViewDESCUENTO.Index]) then
        Descuento := ImporteNeto * (ARecord.Values[cxGridViewDESCUENTO.Index]/100);

     ImporteUnidadDTO := RoundCurrency((ImporteNeto - Descuento), NumDecimales)
  end;


  if (Descuento <> 0) then
  begin
    if (NumDecimales = 2) then
      AText := FormatCurr(',0.00 €;-,0.00 €', FloatToCurr(ImporteUnidadDTO))
    else
      AText := FormatCurr(',0.0000 €;-,0.0000 €', FloatToCurr(ImporteUnidadDTO))
  end;
end;

function TfrViewDetallesDTO.HayQueRecalcular(AItem: TcxCustomGridTableItem): Boolean;
begin
  Result := inherited HayQueRecalcular(AItem);
  if not Result then
    Result := (AItem = cxGridViewINCREMENTO) or (AItem = cxGridViewDECREMENTO) or (AItem = cxGridViewDESCUENTO) or (AItem = cxGridViewIMPORTEPORTE);
end;

end.