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Thank you for your reply. I tried reordering the markers but it didn't help
as I think the main issue is that the SC_MARKNUM_HISTORY_SAVED behavior
(line history can still appear as saved after an undo) just doesn't align
with the functionality I'm looking since I don't want to use indicators.
I'll just have modified, reverted to modified, and saved markers use the
same colors and effectively present just 2 states which is modified and
reverted to origin.
On Thursday, May 15, 2025 at 6:23:54 PM UTC-5 Neil Hodgson wrote:
> Chinh:
>
> > I'm a little confused by the behavior of the change history markers. I'm
> seeing a modified and saved marker in situations where I would've expected
> a reverted to modified marker. I am using only the markers and turned off
> the indicators.
>
> The indicators show the detailed state of change history and the markers
> try to summarize that state for each line. It is easier to understand the
> markers when the indicators are also visible.
>
> The margin markers for each state present are all drawn so choosing
> markers that do not overdraw can show all the states on a line.
>
> The prioritization is just the normal order of markers being drawn over
> each other. This order is REVERTED_TO_ORIGIN, SAVED, MODIFIED,
> REVERTED_TO_MODIFIED.
>
> > However, if I reopen the file and repeat the edits but after the first
> undo where the marker turns green-yellow, I add a character and the marker
> stays green-yellow instead of orange. The documentation states "The margin
> shows a block indicating the overall state of the line, prioritizing the
> more consequential modified states." but I still would've expected the line
> to be considered modified.
>
> The line contains both modified and reverted to modified. Reverted to
> modified overdraws modified.
>
> > by selecting the i in is and typing the letter a to replace the I, then
> selecting the letter a in the word a and pressing the letter I to replace
> it, then selecting the letter t in test and replacing it with r, the marker
> turns orange as expected. Save the file and the marker turns green.
> However, if undo once, the marker stays green instead of the green-yellow I
> expected. Undo again and the marker stays green. Why did the marker stay
> green instead of green-yellow?
>
> The undo returned that text to its original state so the line contains
> both saved and reverted to original. Saved draws last.
>
> > The documentation for SC_MARKNUM_HISTORY_SAVED (green marker) says "This
> line was modified and saved. This line is the same as its state on disk."
> but that's not the behavior that I'm seeing. I looked at Visual Studio and
> their history markers only have 3 states where there is no reverted to
> modified,
>
> Visual Studio has more states that do not have distinct visuals.
>
> > So is this all a bug or is it behaving as expected?
>
> It's likely behaving as expected. A different order of markers (different
> numbers for the SC_MARKNUM_HISTORY_*) may produce results closer to your
> expectations but that would not be compatible with existing applications.
>
> I think that the alpha and layer attributes of the markers could be set by
> the application to change the perceived prioritization.
>
> > Also, I put the change history markers in its own margin. If I have
> markers on and indicators off, hiding the change history margin for some
> reason changes the background color of each line of text to the history
> marker color of each line.
>
> This is the behaviour of all margin markers: if there is no margin
> displaying a marker, it produces a line background colour change to ensure
> that it can be seen. This ensures that bookmarks or breakpoints are still
> visible when the user hides the relevant margin to increase space.
>
> Neil
>
>
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