[[José Luis Garcí]]

Como estaba harto de que este componente me diese problemas con el tema de la negrita, lo he vuelto a modificar y aquí lo dejo ya corregido

Código Delphi [-]
{ ****************************************************************** }
{                                                                    }
{   VCL component TDBIBCheckbox                                      }
{                                                                    }
{   Dbcheckbox para Firebird permitiendo Cambiae El Value según Check }
{                                                                    }
{   Code generated by Component Create for Delphi                    }
{                                                                    }
{   Generated from untitled component definition                     }
{   on 23 March 2012 at 15:59                                        }
{                                                                    }
{   Copyright © 2012 by J.L.G.T.                                     }
{                                                                    }
{ ****************************************************************** }

unit TDbIbchkbox;

interface

uses WinTypes, WinProcs, Messages, SysUtils, Classes, Controls,
     Forms, Graphics, Stdctrls, DbTables, DB, DBCtrls, TypInfo, Dialogs;

type
  TDBIBCheckbox = class(TCheckBox)
    private
      { Private fields of TDBIBCheckbox }
        FUpperCaseChk : Boolean;
        FBoldCheck: Boolean;
        FValueChecked : String;
        FValueUnChecked : String;
        { Pointer to application's OnChange handler, if any }
        FOnChange : TNotifyEvent;
        FDataLink : TFieldDataLink;
        FBoldfixed: Boolean;
        { Private methods of TDBIBCheckbox }
        { Method to set variable and property values and create objects }
        procedure AutoInitialize;
        { Method to free any objects created by AutoInitialize }
        procedure AutoDestroy;
        function GetDataField : String;
        procedure SetDataField(Value : String);
        function GetDataSource : TDataSource;
        procedure SetDataSource(Value : TDataSource);
        procedure SetUppercaseChk(value:Boolean);
        function GetUpperCaseChk : Boolean;
        procedure SetValueChecked(value:string);
        procedure SetValueUnChecked(value:string);
        procedure ActiveChange(Sender : TObject);
        procedure DataChange(Sender : TObject);
        procedure EditingChange(Sender : TObject);
        procedure UpdateData(Sender : TObject);
        procedure SetBoldCheck(Value:Boolean);
        procedure SetBoldfixed(Value:Boolean);      //Permite que sea fija o no la negrita
    protected
      { Protected fields of TDBIBCheckbox }

      { Protected methods of TDBIBCheckbox }
        { Method to generate OnChange event }
        procedure Change(Sender : TObject); virtual;
        procedure Click; override;
        procedure KeyPress(var Key : Char); override;
        procedure Loaded; override;

    public
      { Public fields and properties of TDBIBCheckbox }
      { Public methods of TDBIBCheckbox }
        constructor Create(AOwner: TComponent); override;
        destructor Destroy; override;

    published
      { Published properties of TDBIBCheckbox }
        { Cuando Cambia el Checked }
        property OnChange : TNotifyEvent read FOnChange write FOnChange;
        property OnClick;
        property OnDblClick;
        property OnDragDrop;
        property OnEnter;
        property OnExit;
        property OnKeyDown;
        property OnKeyPress;
        property OnKeyUp;
        property OnMouseDown;
        property OnMouseMove;
        property OnMouseUp;
        { Campo de la base de datos }
        property DataField : String           read GetDataField       write SetDataField;
        { Datasource unido a la base de datos }
        property DataSource : TDataSource     read GetDataSource       write SetDataSource;
        { Asegura que Se grave en mayusculas }
        property UpperCaseChk : Boolean       read GetUpperCaseChk    write SetUppercaseChk  default True;
        { Valor de cuando Esta Checked=true }
        property ValueChecked : String        read FValueChecked      write SetValueChecked;
        { Valor de cuando no esta Checked (Checked=False) }
        property ValueUnChecked : String      read FValueUnChecked    write SetValueUnChecked;
        property BoldCheck:Boolean            read FBoldCheck         write SetBoldCheck  default True;
        property Boldfixed:Boolean            read FBoldfixed         write SetBoldfixed  default True;

        Procedure DBICHKNOT;
  end;

procedure Register;

implementation


Function GetTipoCampo (DataSet :TDataSet; Index :Integer) :String;
Begin
    Result := GetEnumName (TypeInfo (TFieldType),
    Integer (DataSet.Fields [Index].DataType));
End;

procedure Register;
begin
     RegisterComponents('InterBase', [TDBIBCheckbox]);
end;

{ Method to set variable and property values and create objects }
procedure TDBIBCheckbox.AutoInitialize;
begin
     FDataLink := TFieldDataLink.Create;
     FBoldCheck:=True;
     FUpperCaseChk:=True;
     FBoldfixed:=True;
     with FDataLink do
     begin
          { Assign handlers }
          OnDataChange := DataChange;
          OnUpdateData := UpdateData;
          OnEditingChange := EditingChange;
          OnActiveChange := ActiveChange;
     end;
end; { of AutoInitialize }

{ Method to free any objects created by AutoInitialize }
procedure TDBIBCheckbox.AutoDestroy;
begin
     FDataLink.Free;
end; { of AutoDestroy }

function TDBIBCheckbox.GetDataField : String;
begin { Return the FDataLink.FieldName property }
     Result := FDataLink.FieldName;
end;

procedure TDBIBCheckbox.SetDataField(Value : String);
begin { Set the FDataLink.FieldName property }
     FDataLink.FieldName := Value;
end;

function TDBIBCheckbox.GetDataSource : TDataSource;
begin { Return the FDataLink.DataSource property }
     Result := FDataLink.DataSource;
end;

procedure TDBIBCheckbox.SetDataSource(Value : TDataSource);
begin { Set the FDataLink.DataSource property }
     FDataLink.DataSource := Value;
end;

function TDBIBCheckbox.GetUpperCasechk : Boolean;
begin
  Result := FUpperCaseChk;
end;

{ Method to generate OnChange event }
procedure TDBIBCheckbox.Change(Sender : TObject);
begin
     if Assigned(FOnChange) then FOnChange(Sender);
end;

{ Override OnClick handler from TCheckBox }
procedure TDBIBCheckbox.Click;
begin { Call method of parent class }
     if FDataLink.Editing then  //Comprueba si se esta editando el registro
     begin
          FDataLink.Modified;
          if fDataLink.field <> nil then
          begin
             if (Checked) then
             begin
               if FUpperCaseChk then fDataLink.field.Value := UPperCase(FValueChecked)
                                else fDataLink.field.Value := FValueChecked;
               if (FBoldCheck) then
               begin
                 if (fBoldfixed=False)  then Self.Font.Style:=[fsBold]
                                        else Self.Font.Style:=[];
               end;
             end else
             begin
              if FUpperCaseChk=False then fDataLink.field.Value := UpperCase(FValueChecked)
                                     else  fDataLink.field.Value := FValueUnChecked;
             end;
          end;
          inherited Click;
//       end;
     end;
end;

{ Override OnKeyPress handler from TCheckBox }
procedure TDBIBCheckbox.KeyPress(var Key : Char);
begin { Call method of parent class }
     inherited KeyPress(Key);
end;

constructor TDBIBCheckbox.Create(AOwner: TComponent);
begin
     inherited Create(AOwner);
     AutoInitialize;
     FUpperCaseChk:=True;
     FValueChecked:='SI';
     FValueUnChecked:='NO';
     { Code to perform other tasks when the component is created }
end;

procedure TDBIBCheckbox.DataChange(Sender : TObject);
begin
    if fDataLink.field <> nil then
    begin
       if FUpperCaseChk then
       begin
          if UpperCase(FDataLink.Field.AsString)=UpperCase(FValueChecked) then Checked:=true
                                                                          else Checked:=False;
       end else
       begin
          if FDataLink.Field.Value=FValueChecked then Checked:=true
                                                 else Checked:=False;
       end;
       if (Checked) then
       begin
               if (FBoldCheck) then
               begin
                 if (fBoldfixed=False)  then Self.Font.Style:=[fsBold]
                                        else Self.Font.Style:=[];
               end;
       end;
       if Assigned(FOnChange) then FOnChange(Sender);
    end;
end;

destructor TDBIBCheckbox.Destroy;
begin
     AutoDestroy;
     inherited Destroy;
end;

procedure TDBIBCheckbox.EditingChange(Sender : TObject);
begin
     //
end;

procedure TDBIBCheckbox.Loaded;
begin
     inherited Loaded;
end;

procedure TDBIBCheckbox.ActiveChange(Sender : TObject);
const
     IntFieldTypes = [ftSmallInt, ftInteger, ftWord];
begin
     if DataField = '' then  Exit;
end;

procedure TDBIBCheckbox.UpdateData(Sender : TObject);
begin
    if fDataLink.field <> nil then
    begin
        if (Checked) then
       begin
         if FUpperCaseChk then fDataLink.field.Value := UPperCase(FValueChecked)
                          else fDataLink.field.Value := FValueChecked;
         if (FBoldCheck) then
         begin
              if (fBoldfixed=False)  then Self.Font.Style:=[fsBold]
                                     else Self.Font.Style:=[];
         end;
       end else
       begin
         if FUpperCaseChk=False then fDataLink.field.Value := UpperCase(FValueChecked)
                                  else  fDataLink.field.Value := FValueUnChecked;
       end;
    end;
end;

procedure TDBIBCheckbox.SetUppercaseChk(value: Boolean);
begin
    if value<>FUpperCaseChk then FUpperCaseChk:=value;
end;

procedure TDBIBCheckbox.SetValueChecked(value: string);
begin
      if value<>FValueChecked then
      begin
         if FDataLink.Field<>nil then
         begin
             if Length(value)>FDataLink.Field.Size then ShowMessage('El ValueCheck [ '+Value+' ] contiene más caracteres de los '+#13+#10+
                                                                    'permitidos, que es de  [ '+IntToStr(FDataLink.Field.Size)+' ] caracteres')
                                                  else FValueChecked:=value;
         end else FValueChecked:=value;
      end;
end;
procedure TDBIBCheckbox.SetBoldCheck(Value: Boolean);
begin
    if FBoldCheck<>value then FBoldCheck:=Value;

end;

procedure TDBIBCheckbox.SetBoldfixed(Value: Boolean);
begin
   if FBoldfixed<>Value then FBoldfixed:=Value;
   if FBoldfixed then Self.Font.Style:=[fsBold] else Self.Font.Style:=[]
end;

procedure TDBIBCheckbox.SetValueUnChecked(value: string);
begin
      if value<>FValueUnChecked then
      begin
         if FDataLink.Field<>nil then
         begin
             if Length(value)>FDataLink.Field.Size then ShowMessage('El ValueUnCheck [ '+Value+' ] contiene más caracteres de los '+#13+#10+
                                                                    'permitidos, que es de  [ '+IntToStr(FDataLink.Field.Size)+' ] caracteres')
                                                  else FValueUnChecked:=value;
         end else FValueUnChecked:=value;
      end;
end;

Procedure TDBIBCheckbox.DBICHKNOT;
begin
   if  FDataLink.Editing=true then
   begin
        FDataLink.Field.Value:=FValueUnChecked;
   end;
end;

end.