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Implement the suggestion and close #125.
Initial suggestion and implementation from
https://github.com/rxi/lite/pull/17
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This reverts commit 461266e97d467ed11c0775a674d8f5c2f3ca190f.
Related to github issue #122.
The void *data field is not used but the glyphset index can
someting be equal to -1 and the unused field prevent faulty
writes before the allocated struct.
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Solve github issue https://github.com/franko/lite-xl/issues/109
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Use memmove to copy remaining bytes at beginning of buffer
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Avoid using the shell, awk and cut command
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Use xrdb and the Xft.dpi variable to find out DPI scaling on linux.
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To address https://github.com/franko/lite-xl/issues/87
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In order to fix the issue with cursor positioning a subpixel-aware draw
text operation within rencache was required.
With this modification the cursor positioning problem is completely
resolved.
A new function renderer.draw_text_subpixel is introduced to perform
consecutive, inline, text drawings with subpixel accuracy.
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In order to get right the cursor position on text on mouse clicks it is
needed to take into account text's subpixel positioning.
This fix mostly corrects the problem but cursor positioning is still
somewhat inaccurate for long lines due to repeated commands to draw a text
along a line. Repeated draw text calls make the subpixel information
lost and small errors will add-up.
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Previous implementation was broken.
Ensure the error file is always written and write its location in the error message
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Used when lite-xl fails at startup
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Use ony the OS path separator to parse the executable filename
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Should fix https://github.com/franko/lite-xl/issues/76 and https://github.com/franko/lite-xl/issues/67
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Subpixel positioning is only by 1/3 of pixel
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Introduce the file core/start.lua to initialize applications variables
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Seen with some fonts like FiraSans, github issue:
https://github.com/franko/lite-xl/issues/46
The fix works essentially by looking to the bounds of each glyph to
accurately ensure that there are no overlaps between the glyphs.
The construction of the font atlas was changed to make some related
improvements now that the bounds of each glyph are know. The main
changes are:
- no longer align glyph on the baseline but align them on their upper
bounds. We ensure this way that very tall fonts do not leak in the
upper part
- terminate the row based on x bounds of the glyph to be more accurate
- for each row keep trace of the y of the more larger along y of the
glyph. The value is used to start a new row to be sure that the new
now does not overlap with the previous one
- sort glyphs by y size before drawing them. In this way the space
utilization is better. The algorithm used is the very simple insert
sort. It behaves like O(n^2) with the number of characters but should
be ok since n is always small, typically below 128.
- compute the optimal image width and height for the given font's atlas
for optimal memory usage. As a bonus now the lite's code don't have to
try and repeat to get a good image size
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To avoid recreating binaries if there are no changes
in the C side of the source code.
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Fix also a problem with directory path on windows.
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The user can now choose antialiasing grayscale and subpixel and hinting
non, slight or full.
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Add a Meson option "portable" to choose between "portable" and unix-like
directories. Add information about this option in the README.
To determine the user's directory use the variable USERPROFILE only on
Windows and use HOME otherwise.
Implement the "portable" option in the package build script.
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To accommodate the Window's platform prefer the USERPROFILE to HOME
to set user's dir.
Fix error, user's dir was not added to the package.path.
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Create the user's config init file if lite user's config directory does
not exists.
No longer use the awkward package.searchers but instead add user's
config dir at the end of package path.
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It basically works by setting the data directory to
$prefix/share/lite-xl
where $prefix is determined so that $prefix/bin corresponds to EXEDIR.
The packages 'user' and 'user.*' are loaded from the directory
'$HOME/.config/lite-xl'.
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The problem was that when the editor had no events the cursor was not
blinking because the event loop was blocking on wait_event.
Now we no longer calls wait_event without a timeout if the windows has
the focus. When the window has the focus the timeout is set to 1 / fps
so that the cursor can blinks.
In addition we react to the "focus lost" event to ensure the documents
are redrawn without the cursor.
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Fixes bug where text would be drawn/cached wrongly if more than one tab_width
was used in a given frame
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