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When a text file has only 1 line with long text
autoscroll to the top will no longer loop over
and set the cursor to the end of the line.
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We had support for going to a specific line before, but now we support
jumping around using the `line:column` format :^)
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Previously, calling `.right()` on a `Gfx::Rect` would return the last
column's coordinate still inside the rectangle, or `left + width - 1`.
This is called 'endpoint inclusive' and does not make a lot of sense for
`Gfx::Rect<float>` where a rectangle of width 5 at position (0, 0) would
return 4 as its right side. This same problem exists for `.bottom()`.
This changes `Gfx::Rect` to be endpoint exclusive, which gives us the
nice property that `width = right - left` and `height = bottom - top`.
It enables us to treat `Gfx::Rect<int>` and `Gfx::Rect<float>` exactly
the same.
All users of `Gfx::Rect` have been updated accordingly.
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Corrects a slew of titles, buttons, labels, menu items and status bars
for capitalization, ellipses and punctuation.
Rewords a few actions and dialogs to use uniform language and
punctuation.
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Adds fallible factories, ports DeprecatedString, and rebuilds the
layout to accomodate system font changes.
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TextBox now shrinks to fit the current font based on preferred line
height, maintaining its historical minimum size of 40x22
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HackStudio's Editor has displayed indicators in its gutter for a long
time, but each required manual code to paint them in the right place
and respond to click events. All indicators on a line would be painted
in the same location. If any other applications wanted to have gutter
indicators, they would also need to manually implement the same code.
This commit adds an API to GUI::TextEditor so it deals with these
indicators. It makes sure that multiple indicators on the same line
each have their own area to paint in, and provides a callback for when
one is clicked.
- `register_gutter_indicator()` should be called early on. It returns a
`GutterIndicatorID` that is then used by the other methods.
Indicators on a line are painted from right to left, in the order
they were registered.
- `add_gutter_indicator()` and `remove_gutter_indicator()` add the
indicator to the given line.
- `clear_gutter_indicators()` removes a given indicator from every line.
- The `on_gutter_click` callback is called whenever the user clicks on
the gutter, but *not* on an indicator.
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This is going to hold other per-line data too.
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Rather than having a style AND a field saying whether to use the style,
just make the style Optional.
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Similar to POSIX read, the basic read and write functions of AK::Stream
do not have a lower limit of how much data they read or write (apart
from "none at all").
Rename the functions to "read some [data]" and "write some [data]" (with
"data" being omitted, since everything here is reading and writing data)
to make them sufficiently distinct from the functions that ensure to
use the entire buffer (which should be the go-to function for most
usages).
No functional changes, just a lot of new FIXMEs.
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Same as NonnullRefPtrVector: weird semantics, questionable benefits.
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The only remaining clients of this API are specific to bitmap fonts and
editing thereof.
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For vector fonts in particular, we need to take care to compute offsets
using floating point math. For example, with Berkeley Mono at font size
16, with syntax highlighting enabled, we are currently truncating these
offsets to integers. This results in a leftward-drift when we paint the
text.
This changes the rect in which we paint syntax-highlighted text spans to
a float rect. As we traverse the spans, we now no longer truncate any of
the text offsets, and we draw the text in the correct positions.
This is likely not a complete solution. TextEditor blindly casts ints to
floats all over, and we will want to make all of these (hundred+) float-
aware. But this should be a step in the right direction and makes vector
fonts immediately more comfortable to use.
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Previously this stored the position of each visual line break, meaning
that all the text would always be painted. By storing each visual
line's Utf32View, we can skip over parts of the text, such as for code
folding.
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Also, stop unnecessarily creating a RefPtr for the unspanned font - just
use `font()`, which returns a reference.
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This only becomes a problem with folding, since arbitrary lines may be
invisible, meaning we try to apply a span for an invisible line N, on
line N+X instead, causing occasional crashes.
This check means we can remove the loop that skips spans occurring at
the end of the line.
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We are currently setting the physical mouse position to the visual
cursor content location. In a line containing only a multi-code point
emoji, this would set the cursor to column 1 rather than however many
code points there are.
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We will currently only wrap "words" at ASCII spaces and, when wrapping,
will break up multi-code point emoji. This changes word wrapping to
behave as follows:
When the wrapping mode is "anywhere", use the iterator-based font width
computation overload. This will compute the width of multi-code point
emoji, whereas we currently only handle single-code point.
When the wrapping mode is "word", use the Unicode word segmentation
boundaries to break lines.
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When clicking a position within a TextEditor, we should interpret that
position as a visual location. That location should be converted to a
"physical" location before using it to set the physical cursor position.
For example, consider a document with 2 emoji, each consisting of 3 code
points. Visually, these will occupy 2 columns. When a mouse click occurs
between these columns, we need to convert the visual column number 1 to
the physical column number 3 when storing the new cursor location.
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This has the nice side-effect of being cached in the Font, instead of
being repeatedly looked up in the FontDatabase.
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TextDocument::merge_span_collections() automatically makes sure that the
spans are valid, move forwards, are in order, and do not overlap. This
means we don't have to check these things every time TextEditor paints
the document.
merge_span_collections() now does these checks instead. I am not certain
they are still useful, but someone in the past certainly did. I have
modified them to take advantage of the operator overloads and Formatter
that we now have.
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We were manually adding together the gutter and ruler widths in several
places. Soon we'll have a third section that needs to be included in
this width, so let's abstract it now.
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- Make gutter/ruler_content_rect() return rectangles relative to the
TextEditor widget.
- Re-order painting code to translate the Painter after the gutter/ruler
has been painted, to use those coordinates.
- Consistently put gutter before ruler in code, because that's the order
they physically appear.
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Updated TextDocument and TextEditor to use calls to
`find_grapheme_segmentation_boundary` in order to make "correct-feeling"
deletions on backspace and delete keys being pressed
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The `is_wrapping_enabled()` paths function just fine when wrapping is
disabled. We already calculate `m_line_visual_data`. The only reason to
use a special path is for speed, since you can skip some steps if you
know each line is only 1 line high visually.
However, with code-folding being added, we can't make assumptions about
line height because a line could be hidden and have an effective height
of 0px. So `text_position_at_content_position()` always needs to loop
through the lines to see what our position is, and that function always
needs to be called to calculate the real position.
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As usual, this removes many unused includes and moves used includes
further down the chain.
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One less usage of `Core::File`, yay!
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`write_to_file(StringView path)` was based on the `Core::File` overload.
The return type also changed from `bool` to `ErrorOr<void>` to ease
error propagation.
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Width need to be passed to `FontDatabase::get()` to resolve font name
unambiguously.
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Those don't have any non-try counterpart, so we might as well just omit
it.
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clang-format sure has some interesting opinions about where to put a
method call that comes after a lambda. :thonk:
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This overload use the `Core::Stream` API instead of the now deprecated
one `Core::File`.
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Simplify a lot of uses of ElapsedTimer by converting the callers to
elapsed_time from elapsed, as the AK::Time returned is better for unit
conversions and comparisons against constants.
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Return a float, and fix a bogus calculation of ascender + descender.
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Both widgets now make use of their base class's scrolling timer and
now always accept drag selection updates on mousemove_event().
This guarantees much snappier feeling selections when actively moving
the mouse.
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Previously, automatic cursor tracking widgets consumed all mouse
events but did not update their own hover state while active, meaning
Enter and Leave events were not being dispatched.
Fixes TextEditor's automatic selection scroll timer failing to stop
and start while autotracking. Its manual workaround in mousedown
is no longer needed.
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