4ad0bb8b2c
- Refactor LayersSheet component to support mask editing state and improve layer visibility handling. - Introduce functions to collect mask layer IDs and count display layers excluding masks. - Update BrushControls to include mask view mode options and a Done button for exiting mask editing. - Modify brush session handling to support brush previews when editing masks. - Implement a new BrushPreviewRenderer for rendering brush strokes with visual feedback. - Add document geometry utilities for transforming points and resolving layer bounds. - Ensure proper cleanup of brush preview on pointer leave and other interactions.
108 lines
3.5 KiB
TypeScript
108 lines
3.5 KiB
TypeScript
import type { ImageDocument } from "@core/document";
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import type { Rect, Size, Vec2D } from "@core/geometry";
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import type { ArtboardId, LayerId } from "@core/id";
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import type { Layer } from "@core/layer";
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export type InputViewportState = {
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center: Vec2D;
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zoom: number;
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rotation?: number;
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size: Size;
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};
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export type InputSelectionState = {
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artboardId?: ArtboardId;
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layerIds: LayerId[];
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};
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export type InputTransformTarget =
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| { type: "artboard"; id: ArtboardId }
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| { type: "layer"; id: LayerId };
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export function selectedTransformTarget(_document: ImageDocument, selection: InputSelectionState): InputTransformTarget | undefined {
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if (selection.layerIds.length === 1 && selection.layerIds[0]) return { type: "layer", id: selection.layerIds[0] };
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if (selection.artboardId) return { type: "artboard", id: selection.artboardId };
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return undefined;
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}
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export function resolveTransformTargetBounds(document: ImageDocument, target: InputTransformTarget): Rect | undefined {
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switch (target.type) {
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case "artboard":
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return document.artboards.find((artboard) => artboard.id === target.id)?.bounds;
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case "layer": {
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const layer = findLayer(document, target.id);
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return layer ? resolveLayerBounds(document, layer) : undefined;
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}
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}
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}
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export function viewportPointToDocumentPoint(point: Vec2D, viewport: InputViewportState): Vec2D {
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return {
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x: viewport.center.x + (point.x - viewport.size.w / 2) / viewport.zoom,
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y: viewport.center.y + (point.y - viewport.size.h / 2) / viewport.zoom,
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};
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}
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export function documentRectToViewportRect(rect: Rect, viewport: InputViewportState): Rect {
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return {
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x: viewport.size.w / 2 + (rect.x - viewport.center.x) * viewport.zoom,
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y: viewport.size.h / 2 + (rect.y - viewport.center.y) * viewport.zoom,
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w: rect.w * viewport.zoom,
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h: rect.h * viewport.zoom,
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};
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}
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function findLayer(document: ImageDocument, layerId: LayerId): Layer | undefined {
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for (const artboard of document.artboards) {
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const layer = findLayerInTree(artboard.layers, layerId);
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if (layer) return layer;
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}
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return undefined;
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}
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function findLayerInTree(layers: readonly Layer[], layerId: LayerId): Layer | undefined {
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for (const layer of layers) {
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if (layer.id === layerId) return layer;
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if (layer.type === "group") {
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const child = findLayerInTree(layer.children, layerId);
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if (child) return child;
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}
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}
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return undefined;
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}
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function resolveLayerBounds(document: ImageDocument, layer: Layer): Rect | undefined {
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switch (layer.type) {
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case "group":
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return unionRects(layer.children.flatMap((child) => {
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const bounds = resolveLayerBounds(document, child);
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return bounds ? [bounds] : [];
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}));
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case "image":
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case "raster": {
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const asset = document.assets.find((candidate) => candidate.id === layer.assetId);
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if (!asset) return undefined;
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return {
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x: layer.transform.position.x,
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y: layer.transform.position.y,
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w: asset.intrinsicSize.w * layer.transform.scale.x,
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h: asset.intrinsicSize.h * layer.transform.scale.y,
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};
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}
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}
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}
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function unionRects(rects: Rect[]): Rect | undefined {
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if (rects.length === 0) return undefined;
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const minX = Math.min(...rects.map((rect) => rect.x));
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const minY = Math.min(...rects.map((rect) => rect.y));
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const maxX = Math.max(...rects.map((rect) => rect.x + rect.w));
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const maxY = Math.max(...rects.map((rect) => rect.y + rect.h));
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return { x: minX, y: minY, w: maxX - minX, h: maxY - minY };
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}
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