Commit Graph

25 Commits

Author SHA1 Message Date
Guldoman c29b1c2cb9
Use Lua string length instead of relying on `strlen` (#1262)
This allows us to render `NULL` byte sequences and not truncate strings 
that contain them.
2022-12-26 13:49:07 -04:00
jgmdev 3c752f86f3 core renderer: increased max font fallbacks to 10 2022-10-19 21:12:04 -04:00
Aqil Contractor 9b1bfeacac
Added a smoothing and strikethrough option to font loading. (#1087)
* Added a smoothing option to font loading.
* Added a font strikethrough option to font loading.
* Fixed underline applying incorrectly in cases of non-underlined fallback fonts being used.

Co-authored-by: Guldoman <giulio.lettieri@gmail.com>
2022-08-20 16:15:08 -04:00
jgmdev d2f9eeea07 renderer fonts: additions and improvements
* Allow passing font options to renderer.font:copy().
* Added renderer.font:get_path()
* Reintroduced set_size() for more faster font size changes
* Swapped copy wiht set_size on scale plugin for better performance
* Use code_font:copy() instead of renderer.font.load() on language_md to
  properly match user font now that font options are supported on copy.
* Added new changes to renderer docs
2022-06-23 18:08:04 -04:00
Jan fff10a2612
Cleanup (#826)
* Update meson.build
- add logic to loop over more lua names (in the future more names might be discovered)
- disable warnings and errors on dependencies

* adding missing includes and checks, correct data types, pointer mess […]
- various functions from string.h were used but never defined
- logic was done across multiple different data types with different signedness, got all of them up to snuff
- give 0 sized array size of 1 (array of size 0 is illegal, but rewriting the code is out of the scope of this commit)
- add preprocessor that marks possibly unused argument as such (does not mean they will get optimized out or anything)
- correctly initialize structs with all data needed

All these were found by generating the project using `meson -Dwarning_level=3 -Dwerror=true`

* remove undefined behavior, correct data types

* Comment manual bit manipulation to be investigated

* check for more edge cases, replace multiple cleanups with goto

* remove system specific includes
2022-04-15 11:34:46 -04:00
Adam Harrison bc5be3c9b7 Support no antialiasing. 2021-11-22 18:13:43 -05:00
Adam Harrison f2488fdd8d Added in support for font groupings. 2021-10-12 23:24:52 -04:00
Adam Harrison 806e4bc970 Converted all ints to floats for x coordinate purposes. 2021-09-25 00:35:55 -04:00
Adam Harrison d07d0e6d22 Made width return a floating point. 2021-09-24 23:34:19 -04:00
Adam Harrison 940db0f9c7 Added in underline as well. 2021-09-24 11:23:49 -04:00
Adam Harrison 16deedc8a3 Fixed up some naming conventions, and also added bolding and italics. 2021-09-24 11:23:49 -04:00
Adam Harrison e25f2e9c5c Removed font renderer. 2021-09-24 11:22:39 -04:00
Francesco Abbate 3d84fe5488 Make usage of SDL renderer optional 2021-04-29 14:15:24 +02:00
Francesco Abbate 46c3bdea67 First implementation of scaling for retina display
Introduce a new approach that discriminate coordinates in
points and pixels. Now all the logic from the Lua side and in
rencache is to always use points. The coordinates are converted
to pixels only within the renderer, in the file renderer.c.
In this way the application logic does not need to care about the
scaling of the retina displays.

For non-retina display the scaling between points and pixels is
equal to one so nothing will change.

There is nevertheless a change that leak into the Lua side. The
subpixel coordinates are in sub-pixel, not sub-points so they are
scaled by the retina scaling factor. But no change in the code is
required because the subpixel scaling factor take into account the
retina scaling, when present.

Because the retina scaling factor is not know when the application
starts but only when a window is actually available we introduce a
mechanism to render the font with a given scaling factor only from
the renderer when they are needed. We use therefore FontDesc to
describe the font information but without actually rasterizing the
font at a given scale.
2021-04-26 15:16:34 +02:00
Francesco Abbate 57e6de978b Fix error with missing ren_resize call 2021-04-23 07:09:50 -07:00
Francesco Abbate 33fe7295c0 First working implemention
Cleanup also debug messages
2021-04-23 14:54:25 +02:00
Francesco Abbate 3b040aabc7 Implement unicode character replacements
Useful to draw whitespaces with alternate characters and colors
without slowing down the text rendering.

A new API is implemented. A renderer.replacements object can be created
to list the replacements.

In turns the function renderer.draw_text and draw_text_subpixel now accept
two optional arguments for replacements.
2021-04-01 18:05:59 +02:00
Francesco Abbate 88bec172a1 Fix problem with tab size and subpixel positioning
Solve github issue https://github.com/franko/lite-xl/issues/109
2021-03-18 13:54:33 +01:00
Francesco Abbate 3426bc5d73 Introduce subpixel text positioning within rencache
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.
2021-03-06 18:12:02 +01:00
Francesco Abbate 9ff6a0325e Mostly fix problem of offset with cursor positioning when using mouse
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.
2021-03-06 16:18:24 +01:00
Francesco Abbate afda299fe4 Implement optional font rendering options
The user can now choose antialiasing grayscale and subpixel and hinting
non, slight or full.
2020-12-04 16:15:54 +01:00
Francesco Abbate cdcd89d6d7 Merge remote-tracking branch 'rxi/master' 2020-11-17 10:24:27 +01:00
rxi 878c94a334 Changed rencache to store font tab_width with font command
Fixes bug where text would be drawn/cached wrongly if more than one tab_width
was used in a given frame
2020-09-05 15:09:54 +01:00
Francesco Abbate 77a9819f4e Fix SDL2 include directives 2020-06-29 15:24:08 +02:00
rxi d8c4bfa6ba Initial commit 2019-12-28 11:17:56 +00:00