Prevent Lazarus automatically switching tabs in code editor?
lazarus / 9-Editor

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hayanninja · 2018-01-08 08:40

Let's say I have a source code file, "DataObject.pas". I also have a
form, "FormDataObjectEditor.pas" (and corresponding LFM).

I want to add various controls to FormDataObjectEditor.lfm in the IDE,
but I want to have DataObject.pas open in the code editor window -
perhaps so I can refer to it to see what controls I need to add.

However, while I'm doing this, Lazarus seems to keep switching the
code editor tab over to that of FormDataObjectEditor.pas, instead of
keeping DataObject.pas active.

Is this just an option I need to disable, or is this a bug? If the
former, where do I find said option?

(EDIT: Lazarus 1.8.0, running on Windows 10 Pro 64-bit. I *think* I've
run into this issue, same Lazarus version, on Mac OSX High Sierra too,
but I'm not 100% sure about this.)

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howardpc · 2018-01-08 08:50

In the IDE right-click on the tab of DataObject.pas and choose "Move
to new window".
Place the new window where it does not obscure "FormDataObjectEditor",
and continue with designing your form.

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hayanninja · 2018-01-08 09:32

Okay, so it's a bug, but a workaround is known. Better than nothing.

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Bart · 2018-01-08 16:38

It's not a bug.
It is by design.

Bart

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hayanninja · 2018-01-10 06:59

Depends on one's definition of "bug". Some would argue that a feature
that tries to be smarter than the user, with no direct way to override
it, is a bug. At any rate - if it's not a bug, it's a very annoying
feature.

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Martin_fr · 2018-01-10 11:22

Its probably meant to be a feature, but it is strange.

The idea seems to be, that the code is edited (button added to form
declaration), therefore the editor switches to that unit.
(Other edits - such as resizing a button - do not switch)

But, if the feature means to switch to the source that it changed,
then it is incomplete. It does not scroll the editor to the changed
line.
So it shows some random code in that unit.