unit uEditorAlmacen;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, uEditorDBItem, ToolWin, ComCtrls, JvExControls, JvComponent,
  uViewAlmacen, uBizAlmacenes, JvNavigationPane, ActnList,
  uEditorBase, StdActns, TB2Dock, TB2Toolbar, TBX, ImgList, PngImageList,
  TB2Item, uEditorItem, DB, uDADataTable, uEditorDBBase, JvFormAutoSize,
  uDAScriptingProvider, uDACDSDataTable, StdCtrls, pngimage, ExtCtrls,
  TBXDkPanels, JvButton, AppEvnts, uCustomView, uViewBase, uViewMensaje,
  JvAppStorage, JvAppRegistryStorage, JvFormPlacement,

  uViewAlmacenes;

type
  IEditorAlmacen = interface(IEditorDBItem)
    ['{BADE8E8B-B0BC-4759-B2EE-4B4082827BE0}']
    function GetAlmacen: IBizAlmacen;
    procedure SetAlmacen(const Value: IBizAlmacen);
    property Almacen: IBizAlmacen read GetAlmacen write SetAlmacen;
  end;

  TfEditorAlmacen = class(TfEditorDBItem, IEditorAlmacen)

    procedure FormShow(Sender: TObject);
    procedure dsDataTableDataChange(Sender: TObject; Field: TField);
    procedure actEliminarExecute(Sender: TObject);
  private
    FAlmacen: IBizAlmacen;
    FViewAlmacen : IViewAlmacen;
  protected
    function GetAlmacen: IBizAlmacen; virtual;
    procedure SetAlmacen(const Value: IBizAlmacen); virtual;

    function GetViewAlmacen: IViewAlmacen;
    procedure SetViewAlmacen(const Value: IViewAlmacen);
    property ViewAlmacen: IViewAlmacen read GetViewAlmacen write
            SetViewAlmacen;
  public
    property Almacen: IBizAlmacen read GetAlmacen write SetAlmacen;
    constructor Create(AOwner: TComponent); override;
    destructor Destroy; override;
  end;

implementation

{$R *.dfm}

uses
  uCustomEditor, uDataModuleAlmacenes, uDataModuleBase, uEditorUtils;

function ShowEditorAlmacen (ABizObject : TDADataTableRules): TModalResult;
var
  AEditor: TfEditorAlmacen;
begin
  AEditor := TfEditorAlmacen.Create(Application);
  try
    AEditor.Almacen := (ABizObject as IBizAlmacen);
    Result := AEditor.ShowModal;
  finally
    AEditor.Release;
  end;
end;

{
******************************* TfEditorAlmacen *******************************
}
function TfEditorAlmacen.GetAlmacen: IBizAlmacen;
begin
  Result := FAlmacen;
end;

function TfEditorAlmacen.GetViewAlmacen: IViewAlmacen;
begin
  Result := FViewAlmacen;
end;

procedure TfEditorAlmacen.SetAlmacen(const Value: IBizAlmacen);
begin
  FAlmacen := Value;
  dsDataTable.DataTable := FAlmacen.DataTable;

  if Assigned(FViewAlmacen) and Assigned(Almacen) then
    FViewAlmacen.Almacen := Almacen;
end;

procedure TfEditorAlmacen.SetViewAlmacen(const Value: IViewAlmacen);
begin
  FViewAlmacen := Value;

  if Assigned(FViewAlmacen) and Assigned(Almacen) then
    FViewAlmacen.Almacen := Almacen;
end;

procedure TfEditorAlmacen.FormShow(Sender: TObject);
begin
  inherited;

  if not Assigned(FViewAlmacen) then
    raise Exception.Create('No hay ninguna vista asignada');

  if not Assigned(Almacen) then
    raise Exception.Create('No hay ningún almacén asignado');

  Almacen.DataTable.Active := True;
  FViewAlmacen.ShowEmbedded(pagGeneral);
  FViewAlmacen.SetFocus;
end;

destructor TfEditorAlmacen.Destroy;
begin
  FViewAlmacen := NIL;
  FAlmacen := NIL;
  inherited;
end;

constructor TfEditorAlmacen.Create(AOwner: TComponent);
begin
  inherited;
  ViewAlmacen := CreateView(TfrViewAlmacen) as IViewAlmacen;
end;

procedure TfEditorAlmacen.dsDataTableDataChange(Sender: TObject;
  Field: TField);
begin
  inherited;
  if Assigned(FAlmacen) and (not (FAlmacen.DataTable.Fetching) or
    not (FAlmacen.DataTable.Opening) or not (FAlmacen.DataTable.Closing)) then
  begin
    if Length(FAlmacen.NOMBRE) = 0 then
      JvNavPanelHeader.Caption := 'Nuevo almacén'
    else
      JvNavPanelHeader.Caption := 'Almacén - ' + FAlmacen.Nombre;
    Caption := JvNavPanelHeader.Caption;
  end;
end;

procedure TfEditorAlmacen.actEliminarExecute(Sender: TObject);
begin
  if (Application.MessageBox('¿Desea borrar este almacén?', 'Atención', MB_YESNO) = IDYES) then
    inherited;
end;

initialization
  RegisterEditor(IBizAlmacen, ShowEditorAlmacen, etItem);

end.