Choose paragraph layout rules from an optional language tag. Pass language
to horizontal and vertical shaping, add basic Chinese punctuation rules,
and add experimental Korean spaces-only wrapping.
Keep text boundaries grapheme-safe and preserve paragraph profiles across
editor splits and merges. Add reproducible font fixtures for localized
glyphs and regression tests for the shared WASM protocol and layout paths.
Validation: renderer, common JVM/JS, frontend and exporter tests pass.
Both WASM targets build. Full CI still reports baseline lint and format
errors and one backend multipart-upload test failure.
AI-assisted-by: GPT-6
Lay out horizontal and vertical Japanese text with kinsoku, ruby,
emphasis, warichu, tate-chu-yoko and proportional font features.
Carry the layout through glyph paths, SVG export and text selection.
Update the Rust and ClojureScript binary formats together, including
the editor bridge and headless exporter. Resolve CJK fallback fonts
and add renderer tests and font fixtures.
A text image fill was always laid over the whole text box, so a pasted
image span showed another part of the picture in a box of another size.
Text image fills now honour the image transform, as shape fills do: the
image covers the transform rect instead of the whole box. Paste gives
each pasted image span a transform that keeps the image at the same
pixel offset from the span, like the gradients.
The SVG export emits one linked image per span transform, rather than
one per image id, and the style panel keeps the transform it reads back.
AI-assisted-by: claude-opus-5-5
* 🐛 Keep text gradients in place when pasting at the caret
Text gradients are stored as fractions of the whole text box. Paste
copied those fractions unchanged, so in a box of another size the
handles and colours moved away from the pasted text.
Copy from the v3 editor now records where each span with a gradient or
image fill starts in its text box, and the box size, in the clipboard
payload. A new WASM export, text_editor_get_range_origin, gives the
start of any text range.
Paste at the caret finds where those spans start in the target and
rewrites their gradients so the handles keep the same pixel offset from
the span. Auto-sized texts use the box size they get when the editor
closes.
AI-assisted-by: claude-opus-5-5
* 🐛 Rebuild text gradient shaders when the text box resizes
Text gradient and image shaders are built into the cached Skia
paragraphs against the text box size. A resize with no content change
reused those paragraphs, so the colours stayed matched to the old box
until a reload.
The text now remembers the box size its shaders were built for and lays
itself out again when that size changes and a span has a gradient or
image fill. Text with only solid fills keeps its cache.
AI-assisted-by: claude-opus-5-5
* 🐛 Keep text gradients in place when pasting on the canvas
A text selection pasted on the canvas becomes a new text whose box
differs from the source, so its gradients moved like they did for caret
paste.
After adding the new text, lay it out, find where its gradient spans
start and move their gradients to keep the same pixel offset from the
span, in the same undo step. The range origin export now takes a shape
id, so it works on texts that are not being edited.
AI-assisted-by: claude-opus-5-5
* 🐛 Keep text gradients in place when pasting copied texts at the caret
Text shapes copied whole, rather than as an editor selection, reached the
caret paste without any geometry, so their gradients still moved away from
the pasted text.
A shape copy now records where the gradient and image spans of each
selected text start, and the box size, by shape id. Paste joins them in
the order of the joined paragraphs, with no origin for texts copied
without one.
Copied texts each have their own box, so every span origin now carries
its own box size instead of one box for the whole payload.
AI-assisted-by: claude-opus-5-5
Inner shadows were joined into extrect via the drop-shadow filter, so a
Y offset grew the PNG/SVG export surface. Only drop
shadows expand bounds, matching classic export. Closes#12386.
* 🎉 Render different stroke styles per side
* 🔧 Stabilise per-side stroke snapshots against clip id churn
SVG clip ids come from a counter that lives for the whole test
process, so a snapshot holding one depends on how many clips other
tests emitted first. The masked-group export tests that landed on
develop shifted that count and broke two per-side snapshots, whose
only diff was the id.
Route the remaining per-side snapshots through with_stable_clip_ids,
which renumbers ids in order of appearance. No snapshot in the suite
now carries a generated id.
AI-assisted-by: claude-opus-5
* 🐛 Fix shadows on a masked group in the WASM renderer
A masked group renders in two passes: its content, then the mask shape
composited with DstIn so everything outside the mask silhouette is
erased. Both happen inside one save_layer, and the group's drop shadow
was composited into that same layer before the mask pass — so the mask
erased it. A drop shadow lives mostly outside the silhouette, so it
disappeared entirely.
Inner shadows never drew at all: render_fill_inner_shadows needs fill
geometry to paint into, and a group has none.
Both now ride on an image filter set on the masked-group layer, which
Skia evaluates after the mask is composited, so the shadow comes from
the real masked pixels rather than the group's own, empty geometry.
The effects compose in the order the SVG renderer uses for a group:
drop shadows, then the source, then inner shadows, with the layer blur
over all of it.
That layer is opened on a canvas carrying no transform, so the filter
is built in device units. Shadow::scale_to_device does that rather
than scale_content, because radius_to_sigma is affine: scaling the
radius applies its constant term once at device scale, while a filter
built in document space has the term scaled by the canvas matrix. The
two would blur differently by 0.5 · (scale - 1) sigma, visible as a
masked group's own shadow being narrower than the same shadow on its
parent. The masked-group layer blur had the same flaw.
Three paths are suppressed for masked groups so nothing is drawn twice:
the silhouette composite, the nested_shadows inheritance that would
reach text descendants, and the fill inner-shadow pass.
Every save and restore around that layer is keyed on the shape alone.
Enter and exit run on different walker passes, and a pan or zoom in
between changes fast mode, so deriving them from render state could
leave the canvas clip stack unbalanced.
Refs #11697
AI-assisted-by: claude-opus-5
* 🐛 Fix a container's drop shadow over a masked group in WASM
A container builds its drop shadow by drawing each descendant as a
black silhouette and blurring the result. The walk descends only
through children that can be flattened, and a masked group never can,
so it stopped there and asked the group to draw its own geometry. A
group has none, so nothing was drawn and the shadow layer stayed
blank: no shadow at all for a group, board or frame holding a masked
group. This is what the file attached to the issue reproduces.
render_drop_black_shadow now draws the masked silhouette for such a
group — content children flat black, DstIn the mask, and only then the
offset, blur and spread. Masking after the blur would trim the shadow
along the wrong edge.
The walk recurses, so it narrows the clip the way the main walker
does: content a clipping container hides must not widen the shadow.
The clip rule now lives in one place, shared with the walker, and a
test pins the two against each other. The shadow layer is sized to the
silhouette plus the shadow's reach rather than falling back to the
clip, so a wide blur is not cut at the tile edge.
Spread keeps the renderer's existing behaviour: the silhouette goes
through the same get_drop_shadow_filter every other shadow uses, so a
masked group gains no ordering of its own.
Closes#11697
AI-assisted-by: claude-opus-5
* 🐛 Fix stroke to path dropping caps and markers
Caps and markers (round ends, arrows, square/diamond/circle markers) are
painted separately by `handle_stroke_caps` after the stroke itself, so
`stroke_to_path` — which only outlines the shape path — dropped them.
Converting a stroke to a path lost every end decoration except the
Round/Round and Square/Square pairs Skia draws natively, and even those
were missing because the outline paint kept the default butt cap.
Cap geometry now lives in `shapes/stroke_paths.rs` as plain path
builders, shared by the canvas renderer and by `stroke_to_path`, which
unions the caps into the outline for open paths and honors
`to_skia_linecap`. The SVG export no longer overlays the caps a second
time on top of the expanded outline, which would double the alpha of
translucent strokes; the clip silhouette for image strokes gets them
from the outline too.
Co-authored-by: Shreyash Agare <agareshreyash26@gmail.com>
Cached Skia paragraphs bake absolute image/gradient shaders at layout
time. On move, clones reuse those paragraphs while painting at the new
selrect, so glyphs move and the fill stays put. Record the paint origin
when layout is built and translate the canvas when painting from cache
so shaders track the text. Also sync bounds before update_layout so
fills bake against the current container.
* 🎉 Implement independent image bounds resizing
Add canvas resize interaction mode that allows users to resize an
image object's bounding box independently from the underlying bitmap
content without scaling or distortion while holding the Mod key.
AI-assisted-by: gemini-2.5-pro
* ♻️ Address reviewer feedback from elenatorro
- Remove legacy cfh/image-shape? check in shape-has-image-fill?
- Guard bounds-resize with positive dimensions instead of clamping scalev to preserve flipping
- Remove :metadata from transform-attrs in modifiers.cljs
- Restore preserveAspectRatio logic based on keep-ar? in fills.cljs
- Compute source rect against destination rect for raster and SVG fills in WASM renderer
* 🔧 Fix clippy needless borrow warnings in wasm image fills
---------
Co-authored-by: Andrey Antukh <niwi@niwi.nz>
Emit clipped `<image href>` for fills with a registered media URL instead
of Skia base64 embeds. Register URLs from the frontend and exporter via
store_image_url. Cover rect, path, frame, and text (glyph clip) cases in
SVG export tests.
Closes#11383
* ✨ Export solid inner and outer strokes to WASM SVG
SkSVGDevice drops save_layer+Clear used for path Outer strokes, so
solid Inner/Outer strokes on closed shapes are expanded to filled
outlines via stroke_to_path. Center and open paths stay on the shared
stroke path.
Closes#11381
* ✨ Export dotted, dashed, and mixed strokes to WASM SVG
PathEffects do not survive SkSVGDevice, so dotted/dashed/mixed strokes
expand via stroke_to_path with the effect kept, producing filled
outline geometry for all alignments including Center.
Closes#11382
* 🐛 Fix WASM SVG stroke export edge cases
Keep expanded stroke outlines in local space under the leaf CTM so
rotated rects/paths are not double-transformed; overlay open-path caps
after dotted expansion; draw frame strokes outside the content clip;
and route per-side rect/frame strokes through the evenodd band path.
* 🐛 Align WASM auto-width text size with HTML measurement
Include the HTML paragraph-set 1px right margin in Skia auto-width
so WASM and DOM measurements match.
* ⚡ Scope and defer post-font WASM text relayout
Track pending font faces per shape, force-relayout only affected
texts, defer stale-selrect sync until the first tiles paint, and
batch request-render after attr updates. Tolerate missing font-face
keys so callers that omit them do not blow up.
* ♻️ Share text layout paragraphs across modifier clones
Store Skia paragraphs in Rc so TextContentLayout::clone keeps the
cached layout for rotate/pan modifiers. Add layout.clear() and treat
needs_update as paragraphs-empty only.
* ⚡ Reuse cached Skia paragraphs when painting text
Add try_paint_from_layout_cache to paint from TextContent.layout when
versions match, skipping ParagraphBuilder rebuild and layout on each
frame. Wire into the layered text path for plain fills without strokes
or effects.
* ⚡ Paint plain text directly onto Current
Extend can_render_directly for stroke-free text and skip the empty
save_layer in draw_text when no stroke-group opacity is set. Plain text
paints into Current without the Fills/Strokes blit.
Shapes and text with stacked solid fills were exported without fill
attributes because merge_fills builds a Skia shader that SkSVGDevice
does not serialize. Draw each fill layer separately for SVG export,
bottom to top, matching the classic exporter.
Closes#11466
* ⚡ Skip drop shadows that are imperceptible at current scale
Filter drop shadows by on-screen footprint (stricter for recursive
shapes) so overview HQ avoids expensive blur passes that barely show.
* ⚡ Simplify Path and Bool strokes at low scale
At overview zooms, Inner/Outer strokes fall back to Center and
dash/dotted styles become solid when the pattern is subpixel.
Strokes are never skipped so stroke-only icons stay visible.
* ⚡ Drain GPU work on partial render frames
Partial frames only flushed the Backbuffer, so tile GPU commands
queued until present_frame's flush_and_submit and stalled the
browser on large files. Submit the context each partial frame
without presenting Target or re-composing the tile atlas.
* ⚡ Prefer direct painting when effects are imperceptible
Skip the Fills/Strokes layered path when drop/inner shadows would
not paint at the current scale, and allow stroke-only shapes
(fills_none) on the direct path. Apply the same footprint LOD to
inner-shadow painting.
* 🐛 Skip identity transforms in layout reflow propagation
Layout reflow emitted identity transforms for unchanged children, which
fanned out through the whole subtree on every drag frame and froze large
files in the WASM renderer.
* 🐛 Fix exclude boolean rendering in render WASM
* 🐛 Fix dropdown shown Mixed Font Families for same family with different variant
* 🐛 Fix variants dropdown appearing blank on mixed variants but same family
* ✨ Add playwright test for mixed font families/variants
* 🐛 Fix stroke to path extra points
* 🐛 Set evenodd when needed on stroke to path (#10446)
---------
Co-authored-by: Elena Torró <elenatorro@gmail.com>
