View Issue Details
|ID||Project||Category||View Status||Date Submitted||Last Update|
|0032813||Lazarus||LCL||public||2017-12-12 17:32||2018-03-15 10:18|
|Reporter||Alexey||Assigned To||Juha Manninen|
|Summary||0032813: TControlBar is faulty|
|Description||Drop TControlBar at Form. It is not moveabe/resizeable. Try to delete it (use Object Inspector for it). Got Access Violation trap.|
|Steps To Reproduce||See description.|
|Tags||No tags attached.|
|Fixed in Revision||r56709, r56716|
I found the reason, it is csDesignInteractive in ControlStyle. But it's there for years so something probably changed in Lazarus. Also, I don't know what this option should exactly do, there's only a short comment "// wants mouse events in design mode ".
Delphi docs says: "The control maps right mouse button clicks at design time into left mouse button clicks to manipulate the control." but it doesn't work in Lazarus.
The fix is to remove csDesignInteractive in TCustomControlBar.Create().
EDIT: I can confirm crashes but after removing csDesignInteractive I didn't notice AccessViolation anymore.
Please test with r56709. I think I prevented the AV.
Otherwise the problem remains.
csDesignInteractive is processed in Designer's MouseDownOnControl, MouseUpOnControl and MouseMoveOnControl. Clearly it has a meaning and purpose.
What kind of control should set csDesignInteractive? Apparently TControlBar should not.
@ Please test with r56709. I think I prevented the AV.
I can't see AV anymore.
@ What kind of control should set csDesignInteractive?
I don't know. It's my mistake, years ago I gave it to constructor even if I didn't know what it really should do.
I removed "csDesignInteractive" from controlbar.inc and rebuilded Lazarus. No changes, AV is here. And I can't understand why component not moveabe/resizeable. Is it "by design"?
Upd: OK, dled designer.pp r5609 and recompiled. All healed. Thnx!
||@ Alexey: If you do some change in include file only (here controlbar.inc) it is not enough and Lazarus doesn't notice it and will not rebuild that file. You have to change something in owner pas file (here extctrls.pas).|
Anyhow, can mark it as Resolved.
I removed csDesignInteractive from TControlBar.
A control that sets it must handle MouseDown, MouseUp and MouseMove by itself.
1.8.2 still has AV with that control..
Can't move it
if you delete it the old crash comes back...
|2017-12-12 17:32||Alexey||New Issue|
|2017-12-12 19:59||Vojtech Cihak||Note Added: 0104664|
|2017-12-12 20:00||Vojtech Cihak||Note Edited: 0104664||View Revisions|
|2017-12-13 01:12||Juha Manninen||Note Added: 0104668|
|2017-12-13 01:13||Juha Manninen||Note Edited: 0104668||View Revisions|
|2017-12-13 01:43||Vojtech Cihak||Note Added: 0104669|
|2017-12-13 16:18||Alexey||Note Added: 0104676|
|2017-12-13 16:19||Alexey||Note Edited: 0104676||View Revisions|
|2017-12-13 16:47||Alexey||Note Edited: 0104676||View Revisions|
|2017-12-13 17:09||Vojtech Cihak||Note Added: 0104678|
|2017-12-13 21:54||Alexey||Note Added: 0104681|
|2017-12-13 21:55||Alexey||Note Edited: 0104681||View Revisions|
|2017-12-14 07:54||Juha Manninen||Assigned To||=> Juha Manninen|
|2017-12-14 07:54||Juha Manninen||Status||new => assigned|
|2017-12-14 08:02||Juha Manninen||Fixed in Revision||=> r56709, r56716|
|2017-12-14 08:02||Juha Manninen||LazTarget||=> -|
|2017-12-14 08:02||Juha Manninen||Note Added: 0104688|
|2017-12-14 08:02||Juha Manninen||Status||assigned => resolved|
|2017-12-14 08:02||Juha Manninen||Resolution||open => fixed|
|2018-03-15 02:59||jamie philbrook||Note Added: 0107118|
|2018-03-15 10:18||Juha Manninen||Relationship added||related to 0033430|