[Lazarus] Visual "uglyness" when creating TSynEdit @ runtime in my app
luiz americo pereira camara
luizmed at oi.com.br
Fri Jan 4 15:25:57 CET 2013
I do the following in my tab like control, and no glitches:
Control := ControlClass.Create(Parent);
Control.Visible := False;
Control.Align := alClient;
Control.Parent := Parent;
Control.Visible := True;
2013/1/4 Bart <bartjunk64 at gmail.com>:
> I have a text editor (LazEdit on Lazarus CCR) which uses a
> TPageControl to act like a Tabbed Document Interface (much like
> Lazarus SE).
> Upon creating a new Tab it basically does:
> - Add a new TTabSheet to the PageControl
> - Create an instance of a TSynEdit
> - Set TSynEdit.Parent to the newly created TTabSheet
> - Set TSynEdit.Align := alClient
> This works as expected.
> However there is one visual anomaly: when you create a new Tab, for a
> brief moment you can see the TSynEdit, unaligned, with Width and
> Height set to it's defaults (like you would drop it on a Form in
> Long time ago, in Delphi, I solved this by doing:
> //Create the TSynEdit, align it etc.
> This delayed any painting up to the point the TSynEdit was aligned.
> However, this is a Windows only fix.
> The relevant code is at:
> (function TEditorPageControl.AddPage: TEditor; appr. at line 994)
> Does anyone have a suggestion how to fix this in a cross-platform manner?
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