unit fbasculas;

interface

uses
  Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
  Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Data.DB, ZDataset, ZAbstractRODataset,
  ZAbstractDataset, Vcl.StdCtrls, Vcl.ExtCtrls, Vcl.Grids, Vcl.DBGrids;

type
  Tbasculas = class(TForm)
    DBGrid1: TDBGrid;
    Panel1: TPanel;
    btnuevo: TButton;
    btmodificar: TButton;
    btborrar: TButton;
    btguardar: TButton;
    btcancelar: TButton;
    qbasculas: TZQuery;
    dsqbasculas: TDataSource;
    qid: TZReadOnlyQuery;
    qidid: TLargeintField;
    qbasculaside: TIntegerField;
    qbasculasid: TIntegerField;
    qbasculasdescripcion: TWideStringField;
    qbasculasmodelo: TWideStringField;
    qbasculasfecha_adquisicion: TDateField;
    qbasculaspeso_control: TFloatField;
    procedure dsqbasculasStateChange(Sender: TObject);
    procedure FormKeyPress(Sender: TObject; var Key: Char);
    procedure FormShow(Sender: TObject);
    procedure qbasculasAfterInsert(DataSet: TDataSet);
    procedure qbasculasAfterPost(DataSet: TDataSet);
    procedure qbasculasBeforeDelete(DataSet: TDataSet);
    procedure qbasculasBeforePost(DataSet: TDataSet);
    procedure btnuevoClick(Sender: TObject);
    procedure btmodificarClick(Sender: TObject);
    procedure btborrarClick(Sender: TObject);
    procedure btguardarClick(Sender: TObject);
    procedure btcancelarClick(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  basculas: Tbasculas;

implementation

{$R *.dfm}

uses datos;

procedure Tbasculas.btborrarClick(Sender: TObject);
begin
    qbasculas.Delete;
end;

procedure Tbasculas.btcancelarClick(Sender: TObject);
begin
    qbasculas.Cancel;
end;

procedure Tbasculas.btguardarClick(Sender: TObject);
begin
    qbasculas.Post;
end;

procedure Tbasculas.btmodificarClick(Sender: TObject);
begin
    qbasculas.Edit;
end;

procedure Tbasculas.btnuevoClick(Sender: TObject);
begin
    qbasculas.append;
end;

procedure Tbasculas.dsqbasculasStateChange(Sender: TObject);
begin
    if qbasculas.State in [dsedit,dsinsert] then
    begin
        btnuevo.Enabled:=false;
        btmodificar.Enabled:=false;
        btborrar.Enabled:=false;
        btcancelar.Enabled:=true;
        btguardar.Enabled:=true;
    end else
    begin
        btnuevo.Enabled:=true;
        btmodificar.Enabled:=true;
        btborrar.Enabled:=true;
        btcancelar.Enabled:=false;
        btguardar.Enabled:=false;
    end;
end;

procedure Tbasculas.FormKeyPress(Sender: TObject; var Key: Char);
begin
   key:=upcase(key);
    if (key='.') and (activecontrol is tdbgrid) then
    begin
        key:=','
    end;
    if (activecontrol is tdbgrid) then
    begin
        if Key = #13 then Key :=#9;
    end;

    if (key=#13) then
    begin
        Perform(WM_NextDLGCtl,0,0);
        key:=#0;
    end;
end;

procedure Tbasculas.FormShow(Sender: TObject);
begin
   qbasculas.Open;
   dm.tempresa.Open;
end;

procedure Tbasculas.qbasculasAfterInsert(DataSet: TDataSet);
begin
    qid.close;
    qid.ParamByName('EMPRESA').AsInteger:=dm.tempresaid.AsInteger;
    qid.open;
    if qidid.asstring='' then qbasculasid.value:=1 else qbasculasid.Value:=qidid.asinteger;
end;

procedure Tbasculas.qbasculasAfterPost(DataSet: TDataSet);
begin
   qbasculas.Cancel;
   qbasculas.Refresh;
end;

procedure Tbasculas.qbasculasBeforeDelete(DataSet: TDataSet);
begin
   case dm.PedirConfirmacion('¿Confirma que desea borrar esta bascula?',true,true,false) of
        mrno:Abort;
   end;
end;

procedure Tbasculas.qbasculasBeforePost(DataSet: TDataSet);
var x:integer;
begin
    if qbasculas.State in [dsinsert] then qbasculaside.Value:=dm.tempresaid.AsInteger;
    if qbasculas.state=dsinsert then x:=dm.PedirConfirmacion('¿Confirma que desea dar de alta esta bascula?',true,true,true)
                                     else x:=dm.PedirConfirmacion('¿Confirma que desea modificar esta bascula?',true,true,true);
    case x of
        mrno: begin
                 qbasculas.cancel;
                 abort;
              end;
        mrcancel:BEGIN
                 abort;
                 END;
    end;
end;

end.