Reshape text at runtime via ViewModel and animation without mutating the document#3595

Merged

shlzxjp merged 34 commits into

mainfrom

feature/partyhuang_text_reshape

Jul 22, 2026

Commits on Jul 21, 2026

Decouple text shaping from Text node via TextGlyphParams to enable runtime reshaping
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Add TextHolder to reshape ViewModel-driven text at draw time without mutating the document
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Thread TextBox holder context through convert methods explicitly instead of builder member state
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Split LayerBuilderContext into static base and runtime subclass via virtual hooks instead of a bool flag
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Hold TextBox convert context as runtime subclass state to keep shared convert method signatures clean
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Merge TextGlyphParams into TextLayoutParams.h to keep text layout params in one header
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Adapt flushTextHolders to the PAGXDocument fontConfig accessor after rebase onto main.
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Access PAGXDocument font config through friend member instead of the public accessor.
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Add tests for font size reshape, position preservation, and TextBox child text reshape.
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Reshape text in place via tgfx setTextBlob so the render tree updates without swapping the bound object.
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Update reshape tests for in-place blob swap and add ViewModel/Animation baseline render tests.
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Mark Text shaping channels as animatable now that they carry runtime writers for ViewModel and animation driven reshaping.
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Cover Text shaping channels in AnimatableChannelsHaveWriters now that they carry runtime writers.
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Extract ApplyPaddingToRuns helper shared by TextBox layout and TextHolder reshape to remove duplication.
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Skip creating a TextHolder for a TextBox with no Text children to avoid a no-op holder registered for the scene.
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Clean up TextHolder entries when removing binding nodes to prevent UAF.
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Move removeNode definition inside pagx namespace to fix compilation.
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Report pending text reshapes in scene content-changed check and skip redundant holder dirtying.
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update baseline
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Drop unused PAGAnimation include from PAGXView and widen reshape baseline surfaces to fit the reshaped text.
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update baseline
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Extend pagx schema and verify to cover ViewModel, DataBind, Animation, and StateMachine.
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Skip text-holder tree walk when no holder exists and drop const_cast in CollectChildCompositions.
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Replace per-frame text-holder tree walk with a flat list cached on PAGScene
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Update hasContentChanged doc to cover pending TextHolder reshapes.
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Fix stale closures comment in LayerBuilder.h textHolders.
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Erase all matching entries in TextHolder removeNode.
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Add Animations DataBind and viewModel to CompositionType schema.
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Drop stale StateMachineInput.defaultImage comment in CollectRefsFromStateMachine.
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Collect comp-level ViewModel properties dataBinds and animations refs.
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Drive size property in reshape demo test to cover fontSize DataBind.
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Clear stale TextHolder entries for surviving text elements before rebuild.
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Keep text_vertical baseline at main version since reshape does not affect its rendering.
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Commits on Jul 22, 2026

update baseline
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