Hi There,

I've been away from Laz for a few months. And just tried the daily build on Windows. Now having a few questions:

1) How is the status of latest Lazarus on Ubuntu? I had very bad experience during Ubuntu 11.04 and 11.10, notable problem is Laz does not play well with Unity global menu.

2) There is a problem with Canvas, I reported a bug already ( http://bugs.freepascal.org/view.php?id=22163) Please create a new project, add an Form.OnPaint event handler:

procedure TForm1.FormPaint(Sender: TObject);
begin
  with Canvas do begin
    Pen.Width:=1;
    Pen.Color:=clRed;
    MoveTo(0, 0);
    LineTo(100, 0);
    LineTo(0, 100);
    LineTo(0, 0);
    MoveTo(Width - 1, Height - 1);
    LineTo(Width - 101, Height - 1);
    LineTo(Width - 1, Height - 101);
    LineTo(Width - 1, Height - 1);
  end;
end;

While the program is running there are two triangles on the top left and bottom right corner of the form. Now you maximize the form, the 2 triangles are redrawn. But then you restore the form, the bottom triangle is NOT drawn!

3) I tried to use TCanvas.FloodFill, but compiler told me incorrect number of arguments. I traced down into the fpcanvas source, the signature is correct, I wonder if that method is implemented or not?

Thanks!
Shannon

Can you be more specific?

[...] 3) I tried to use TCanvas.FloodFill, but compiler told me incorrect number of arguments. I traced down into the fpcanvas source, the signature is correct, I wonder if that method is implemented or not?

The FPCanvas.FloodFill(x,y) is not implemented in the LCL. It "reintroduces" another FloodFill(X, Y: Integer; FillColor: TColor; FillStyle: TFillStyle). This means the compiler message is correct.

The "find declaration" ignores the "reintroduce" and finds more than the compiler.

Just add the two parameters.

Keep in mind that FloodFill can be very slow.

Mattias

Hi Mattias,

1) About Laz on Ubuntu 12.04: it is quite OK, except that the installing process is still very tricky and after install it has 2 minor problems:

- on first start, it always complains that FPC source is not found.
- on program termination (if run within the IDE), the attached error is shown.

2) About the bug I reported. I confirm that it does NOT appear on Ubuntu, but only Windows. And it appears on both Win7 and WinXP, both laz v0.9.30.4 and the bleeding edge nightly build.

3) I used the correct form of FloodFill, now the compiler is happy, but there is no flood fill at all (both on windows and linux). btw, to make sure I use it correctly, I just need to specify a point within the shape I want to fill, right?

Shannon

2012/6/2 Mattias Gaertner

How is the status of latest Lazarus on Ubuntu? I had very bad experience

during Ubuntu 11.04 and 11.10, notable problem is Laz does not play well with Unity global menu.

It works fine, very fine... but on KDE XD

* I always hate Gnome, now I even hate Unity more than Gnome

More info about the bug I reported:

I installed Laz1.1/win32 on Ubuntu via wine, the problem does NOT exist on wine platform. I also confirmed that the same problem appear on a physical Win7 machine, so it is not my virtualbox's fault.

Shannon

2012/6/2 Xiangrong Fang