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15 commits

Author SHA1 Message Date
Andreas Kling
5b72a9cb11 LibWeb: Use paint tree traversal helpers in StackingContext 2022-04-08 20:58:42 +02:00
Idan Horowitz
086969277e Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
Simon Wanner
145efbe07a LibWeb: Apply the CSS transform-origin property
We don't have transform-box yet, so this applies to the border-box
for now.

This also makes us pass a couple Web Platform Tests as well :^)
For example:
https://wpt.live/css/css-transforms/css3-transform-scale-002.html
2022-03-22 02:06:21 +01:00
Andreas Kling
0ba785894c LibWeb: Make hit testing functions return Optional<HitTestResult>
Using "HitTestResult with null paintable" as a way to signal misses was
unnecessarily confusing. Let's use Optional instead. :^)
2022-03-21 13:03:33 +01:00
Simon Wanner
48efdaa8c4 LibWeb: Update hit_test for CSS Transforms
This now also takes a FloatPoint instead of an IntPoint to avoid
excessive rounding when multiple transforms apply on top of each other.
2022-03-18 18:51:42 +01:00
Simon Wanner
a2331e8dd3 LibWeb: Implement CSS transforms on stacking contexts
Since there is currently no easy way to handle rotations and skews
with LibGfx this only implements translation and scaling by first
constructing a general 4x4 transformation matrix like outlined in
the css-transforms-1 specification. This is then downgraded to a
Gfx::AffineTransform in order to transform the destination rectangle
used with draw_scaled_bitmap()

While rotation would be nice this already looks pretty good :^)
2022-03-18 18:51:42 +01:00
Andreas Kling
f5c2e87965 LibWeb: Sort stacking context tree once, after fully building it
Instead of calling quick_sort() every time a StackingContext child
is added to a parent, we now do a single pass of sorting work after the
full StackingContext tree has been built.

Before this change, the quick_sort() was ~13.5% of the profile while
hovering links on GitHub in the Browser. After the change, it's down to
~0.6%. Pretty good! :^)
2022-03-13 18:09:43 +01:00
Andreas Kling
5779a910e5 LibWeb: Move hit testing to the painting tree 2022-03-11 00:21:49 +01:00
Andreas Kling
cc8e429126 LibWeb: Make StackingContext paint functions const 2022-03-11 00:21:49 +01:00
Andreas Kling
f0d833a3d7 LibWeb: Move StackingContext and PaintPhase into the Painting namespace 2022-03-11 00:21:49 +01:00
Andreas Kling
f4625ed9de LibWeb: Paint inline-level and replaced elements on top of floats
This matches CSS 2.1 appendix E, and fixes an instance of red face
border on ACID2. :^)
2022-02-14 18:39:20 +01:00
Egor Ananyin
f567414f65 LibWeb: Draw elements with opacity in a separate stacking context 2021-07-24 22:02:28 +04:30
Egor Ananyin
d2b6148787 LibWeb: Make painting order more spec-compliant
Now our painting order inside stacking contexts is closer to the
algorithm specified by CSS 2.1 (see section 9.9 and Appendix E)
2021-05-07 22:27:48 +02:00
Brian Gianforcaro
1682f0b760 Everything: Move to SPDX license identifiers in all files.
SPDX License Identifiers are a more compact / standardized
way of representing file license information.

See: https://spdx.dev/resources/use/#identifiers

This was done with the `ambr` search and replace tool.

 ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
2021-04-22 11:22:27 +02:00
Andreas Kling
13d7c09125 Libraries: Move to Userland/Libraries/ 2021-01-12 12:17:46 +01:00
Renamed from Libraries/LibWeb/Painting/StackingContext.h (Browse further)