Users can now synchronize the content of the pattern editor with a file
on disk when exporting a pattern. Any modifications made in the pattern
editor are automatically saved to the file and when the pattern editor
gains focus it will automatically load any changes to the file on disk.
This feature is brand new and can have unforeseen problems so test it
fully before risking losing work.
Added major changes to how the text editor handles utf8 characters with
the added ability to obtain them using the [] operator and column
coordinates as indices. Sanitize coordinates was renamed to Set
Coordinates and can be used instead of the constructor to guarantee no
out of range asserts and/or exceptions. Improved move left and right
readability and cursor accuracy when clicking. Fixed single character
selection by double-clicking it. Deleted old and unused code and other
changes that I can't remember about atm.
These changes are part of an effort aimed at removing tabs from ImHex
that started some time ago. Here text preprocessing is removed from all
the places were it was done before and moved to the places where files
are read that go in the pattern editor with two notable exceptions.
1) Pattern import reads patterns in order to present a list that can be
filtered.That can safely ignore preprocessing since only needs to get
information needed to filter.
2) The pattern editor can incorporate text from the clipboard so that
needs to be preprocessed as well.
find/replace is unable to add tabs or carriage returns so this should
cover all angles.
The scrollbar, mini map and the segment delimiters were also using the
incorrect bytes per row value when changing data size forced a change in
the number of bytes per row. From the definition of the new value it
follows that bytesPerRow/bytesPercell == m_bytesPerRow/bytesPerCell, so
it is not necessary to switch it when it is divided by that quantity.
The error was that if `m_bytesPerRow` was not divisible by the number of
bytes per column then ImHex would crash but wouldn't crash if it was.
When `m_bytesPerRow` is not equal to the resultant bytes per row
obtained by the product of column count and bytes per column, then the
later bytes per row were be allocated but the former bytes per row were
being written causing heap corruption and crashes.
Instead of resetting `m_bytePerRow` when it can't be used, a new
variable (`bytesPerRow`) is created with the correct value and used in
the rest of the function. This way if the user goes back to choose a
data size that divides the old `m_bytesPerRow` then the number would
still be available and not overwritten. Test indicate that this approach
works and previous crashes are eliminated while producing the desired
output.
Added clion-like bracket matching feature with shortcut to go to the
other one. Also improved some cumbersome repeated function call.
Added support for using negative indices in coordinates so -1 is the last
line or column, -2 the previous, etc..
Pattern library has fixes for column errors being incorrectly set for lines
containing tabs that are not replaced by 4 spaces.
Fix a typo in `screenshot_descriptions.json` reported in #2330. While I
was presented with the contributing doc, I came across another typo
that's fixed in the second commit.
