SynEdit produces an error on save file (and fix)
lazarus / 31-LCL

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aducom · 2019-05-26 07:02

I have made a bug report that explains that under some circumstances a

Code: Pascal  [Select][+][-]window.onload = function(){var x1 =
document.getElementById("main_content_section"); if (x1) { var x =
document.getElementsByClassName("geshi");for (var i = 0; i
mySynEdit.Lines.SaveToFile
Generates an error. I traced this down to

Code: Pascal  [Select][+][-]window.onload = function(){var x1 =
document.getElementById("main_content_section"); if (x1) { var x =
document.getElementsByClassName("geshi");for (var i = 0; i procedure
TCustomSynEdit.MarkTextAsSaved;begin 
TSynEditStringList(fLines).MarkSaved;  if FLeftGutter.Visible and
FLeftGutter.ChangesPart(0).Visible then  ... 
The FLeftGutter.Changespart can be nil under certain circumstances
causing an error if you access .visible. I don't know if this
situation should occur or is caused by some mishap in my code or
somewhere else, but this fix solved it for me:

Code: Pascal  [Select][+][-]window.onload = function(){var x1 =
document.getElementById("main_content_section"); if (x1) { var x =
document.getElementsByClassName("geshi");for (var i = 0; i procedure
TCustomSynEdit.MarkTextAsSaved;begin 
TSynEditStringList(fLines).MarkSaved;  if FLeftGutter.ChangesPart=nil
then exit;  if FLeftGutter.Visible and
FLeftGutter.ChangesPart(0).Visible then

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lucamar · 2019-05-26 07:31

A link to the bug report  would be nice ...

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aducom · 2019-05-26 07:56

https://bugs.freepascal.org/view.php?id=35635

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jamie · 2019-05-26 17:55

It works fine for me when dropping an SynEdit in the form via OI. All
parts are there.
are you doing something to remove these parts?

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aducom · 2019-05-27 20:03

No, but I ported my code from 32 to 64 bits and upgraded lazarus. I
think something must have gone wrong. I managed by adding the missing
parts in the lfm file. However, there is an issue because you can
remove a part, but you are not able to add it again because you can
only add line number part. But that's another issue ;-) A tiny bit of
hacking and the issue was solved.