[SOLVED] Problem with adding graphics to TLabel

Problem with adding graphics to TLabel

I'm trying to create with Delphi a component inherited from TLabel, with some custom graphics added to it on TLabel.Paint. I want the graphics to be on left side of text, so I overrode GetClientRect:

function TMyComponent.GetClientRect: TRect;
begin
  result := inherited GetClientRect;
  result.Left := 20;
end;

This solution has major problem I'd like to solve: It's not possible to click on the "graphics area" of the control, only label area. If the caption is empty string, it's not possible to select the component in designer by clicking it at all. Any ideas?

Solution

First excuse-me for my bad English.
I think it is not a good idea change the ClientRect of the component. This property is used for many internal methods and procedures so you can accidentally change the functionality/operation of that component.

I think that you can change the point to write the text (20 pixels in the DoDrawText procedure -for example-) and the component can respond on events in the graphic area.

procedure TGrlabel.DoDrawText(var Rect: TRect; Flags: Integer);
begin
  Rect.Left := 20;
  inherited;
end;

procedure TGrlabel.Paint;
begin
  inherited;

  Canvas.Brush.Color := clRed;
  Canvas.Pen.Color := clRed;
  Canvas.pen.Width := 3;
  Canvas.MoveTo(5,5);
  Canvas.LineTo(15,8);

end;