{
===============================================================================
  Copyright (©) 2002. Rodax Software.
===============================================================================
  Los contenidos de este fichero son propiedad de Rodax Software titular del
  copyright. Este fichero sólo podrá ser copiado, distribuido y utilizado,
  en su totalidad o en parte, con el permiso escrito de Rodax Software, o de
  acuerdo con los términos y condiciones establecidas en el acuerdo/contrato
  bajo el que se suministra.
  -----------------------------------------------------------------------------
  Web:  www.rodax-software.com
===============================================================================
  Fecha primera versión: 07-12-2002
  Versión actual: 1.0.0
  Fecha versión actual: 07-12-2002
===============================================================================
  Modificaciones:

    Fecha         Comentarios
    ---------------------------------------------------------------------------
===============================================================================
}

unit InformeBase;

interface

uses
  SysUtils, Classes, FR_Class, IBDatabase, FR_DSet, forms,
  FR_DBSet, DB, FR_View, FR_Shape, FR_IBXDB, BaseDatos;

type
  TGetParametersEvent = procedure(Memo : TStringList) of object;

  TdmInformeBase = class(TDataModule)
    FReport: TfrReport;
    frShapeObject1: TfrShapeObject;
    frIBXComponents1: TfrIBXComponents;
  private
    FPreview : TfrPreview;
    FOnGetParameters: TGetParametersEvent;
  protected
    FBaseDatos : TIBDatabase;
    FTransaccion : TIBTransaction;
    FNombreInforme : String;
    procedure CargarInforme;
    procedure PrepararConsultas; virtual; abstract;
    procedure RellenarCabecera(Band: TfrBand); virtual;
    procedure RellenarBanda(Band: TfrBand); virtual;
    procedure PrepararInforme; virtual;
    procedure FReportBeginBand(Band: TfrBand); virtual;
    procedure SetPreview (Value : TfrPreview);
  public
    constructor Create(AOwner : TComponent); override;
    destructor Destroy; override;
    procedure Previsualizar;
    procedure Imprimir;
  published
    property Preview : TfrPreview read FPreview write SetPreview;
    property Report : TfrReport read FReport;
    property OnGetParametersText : TGetParametersEvent read FOnGetParameters write FOnGetParameters;
  end;


implementation

{$R *.dfm}

uses
  StrFunc, Mensajes, RdxEmpresaActiva;

{ TInformeBase }

constructor TdmInformeBase.Create(AOwner: TComponent);
begin
  inherited;
  FOnGetParameters := NIL;
  FBaseDatos := dmBaseDatos.BD;
  FTransaccion := dmBaseDatos.Transaccion;
  FReport := TfrReport.Create(Self);
end;

destructor TdmInformeBase.Destroy;
begin
  FReport.Free;
  inherited;
end;

procedure TdmInformeBase.FReportBeginBand(Band: TfrBand);
begin
  if Band.Typ = btPageHeader then
    RellenarCabecera(Band)
  else
    RellenarBanda(Band);
end;

procedure TdmInformeBase.PrepararInforme;
begin
  PrepararConsultas;
  CargarInforme;
  FReport.OnBeginBand := FReportBeginBand;
  FReport.Preview := FPreview;
end;

procedure TdmInformeBase.Imprimir;
begin
  PrepararInforme;
  FReport.PrepareReport;
  FReport.PrintPreparedReportDlg;
end;

procedure TdmInformeBase.Previsualizar;
begin
  PrepararInforme;
  FReport.ShowReport;
end;

procedure TdmInformeBase.RellenarCabecera(Band: TfrBand);
var
  iCont : Integer;
  Objeto : TfrView;
  CadenaAux : String;
begin
  with Band do
  begin
     for iCont := 0 to Objects.Count - 1 do
      begin
        Objeto := Objects[iCont];

        if ((Objeto is TfrMemoView) and (Pos('CabParametros', Objeto.Name) > 0)) then
        begin
          with (Objeto as TfrMemoView) do
          begin
            Memo.Clear;
            if Assigned(FOnGetParameters) then
              FOnGetParameters(Objeto.Memo);
          end
        end;

        { Logotipo y datos de la empresa }
        if ((Objeto is TfrMemoView) and (Pos('DatosEmpresa', Objeto.Name) > 0)) then
        begin
          with (Objeto as TfrMemoView), EmpresaActiva do
          begin
            Memo.Clear;

            Memo.Add(Nombre);

            if (not EsCadenaVacia(NifCif)) then
              CadenaAux := 'CIF: ' + NifCif;
            Memo.Add(CadenaAux);
            CadenaAux := '';

            if (not EsCadenaVacia(Calle)) then
            begin
              CadenaAux := Calle;
              if (not EsCadenaVacia(Numero)) then
                CadenaAux := CadenaAux + ', ' + Numero;
            end;
            Memo.Add(CadenaAux);
            CadenaAux := '';

            if (not EsCadenaVacia(CodigoPostal)) then
              CadenaAux := CodigoPostal;
            if (not EsCadenaVacia(Provincia)) then
              CadenaAux := CadenaAux + ' ' + Provincia;
            Memo.Add(CadenaAux);
            CadenaAux := '';

            if (not EsCadenaVacia(Telefono)) then
              CadenaAux := 'Telf. ' + Telefono;
            if (not EsCadenaVacia(Fax)) then
              CadenaAux := CadenaAux + ' Fax ' + Fax;
            Memo.Add(CadenaAux);
            CadenaAux := '';

            if (not EsCadenaVacia(Web)) then
              Memo.Add(Web);
            if (not EsCadenaVacia(Correo)) then
              Memo.Add(Correo);
          end;
        end;

        if (((Objeto is TfrPictureView) and (Pos('Logotipo', Objeto.Name) > 0))) then
        begin
          with (Objeto as TfrPictureView) do
            Picture.Assign(EmpresaActiva.Logotipo);
        end;
     end;
  end;
end;

procedure TdmInformeBase.SetPreview(Value: TfrPreview);
begin
  FPreview := Value;
end;

procedure TdmInformeBase.CargarInforme;
var
  RutaAux : String;
begin
  RutaAux := ExtractFileDir(ParamStr(0))+ '\informes\' + FNombreInforme;
  if not FileExists(RutaAux) then
    raise Exception.CreateFmt('No se ha encontrado el informe %s.',[RutaAux]);
  FReport.LoadFromFile(RutaAux);
end;

procedure TdmInformeBase.RellenarBanda(Band: TfrBand);
begin
  //
end;

end.