canvas_core 0.7.0

Pure-Dart canvas scene model, layout, geometry, serialization, and renderer-agnostic paint operations.

0.7.0

• Breaking: require explicit version and data values when constructing or deserializing GroupBehaviorRef.
• Remove implicit version 1 and empty-data defaults from behavior envelopes.

0.6.0

• Breaking: remove SceneRenderBuilder and defaultSceneRenderBuilder. Use a ScenePreparer for synchronous renderer-neutral scene transformation before calling CanvasRenderPipeline.build(), or call build() directly when no preparation is required.
• Breaking: expose one stable CanvasRenderPipeline.services bundle and remove CanvasRenderPipeline.createServices(). Preparation and final layout can now use the exact same CoreServices instance.
• Keep scene computation, paint-operation construction, content-bounds calculation, and RenderSnapshot creation exclusively in CanvasRenderPipeline.build().
• Breaking: remove the unused CanvasViewportPolicy and CanvasViewportSource APIs. Use CanvasViewportPlanner and select the bounds to fit explicitly.
• Breaking: make CanvasViewportPlanner.plan() return CanvasViewportTransform directly and remove CanvasViewportPlanResult.
• Breaking: remove computeViewportWithPadding. Use CanvasViewportPlanner.plan() with paddingPx, or call computeViewport directly for low-level viewport math.

0.5.0

• Breaking: remove TextMeasureCache and the textMeasureCache parameters from CoreServices, SceneRenderBuilder, defaultSceneRenderBuilder, CanvasRenderPipeline.createServices(), and CanvasRenderPipeline.build().
• Breaking: remove the deprecated CanvasRenderPipeline.buildCanonical() compatibility helper.
• Delegate text measurement directly to the host-provided TextMeasurer. Platform implementations are now responsible for their own caching strategy.

0.4.0

• Breaking: change TextData.letterSpacing and TextMeasurer.measure from int to double.
• Replace synthetic hair-space expansion with native logical-unit letter spacing while preserving the original text.
• Add letterSpacing to DrawTextOp.
• Remove spacedText, measureSpaced, and measureSpacedText.
• Existing non-zero spacing values now use the new native semantics.

0.3.0

• Breaking: remove the unused label named parameter from History.reduce.
• Breaking: remove the unused label named parameter from History.withPresent.
• History behavior and stored state are unchanged; labels were previously accepted but ignored.

0.2.2

• Add CanvasFields.iconRef as the shared field identity for an icon's reference value.

0.2.1

• Add CanvasFieldKey, CanvasFields, and CanvasFieldKeyConverter as a shared runtime field identity API.

0.2.0

• Breaking: replace the scene background color model with CanvasFill via backgroundFill.
• Support no-fill, solid, and gradient canvas backgrounds.
• Add package licensing details for the public release.

0.1.1

• Fix internal layout imports to avoid resolving duplicate canvas_core types.
• Move image/icon layout payload types into a shared internal layout payload file.

0.1.0

• Initial open-source release of canvas_core.