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| author | Maze Winther <mazewinther@gmail.com> | 2026-04-20 11:31:17 +0200 |
|---|---|---|
| committer | Maze Winther <mazewinther@gmail.com> | 2026-04-20 11:31:17 +0200 |
| commit | 3e89d2998588f8e35c524e523ba2ee853f0f6475 (patch) | |
| tree | 57221f96c1259b3b07e3ddf8c1adefc502b9d8eb /apps/web/src/lib/graphics/stroke.ts | |
| parent | 729d10592f4e802f91c555c309ff3ba4b119f843 (diff) | |
| download | opencut-3e89d2998588f8e35c524e523ba2ee853f0f6475.tar.gz | |
refactor: restructure files to their domains, new preview overlay system, and dep graph
Diffstat (limited to 'apps/web/src/lib/graphics/stroke.ts')
| -rw-r--r-- | apps/web/src/lib/graphics/stroke.ts | 102 |
1 files changed, 0 insertions, 102 deletions
diff --git a/apps/web/src/lib/graphics/stroke.ts b/apps/web/src/lib/graphics/stroke.ts deleted file mode 100644 index 230d9904..00000000 --- a/apps/web/src/lib/graphics/stroke.ts +++ /dev/null @@ -1,102 +0,0 @@ -import type { GraphicStrokeAlign } from "./definitions/shared";
-
-type GraphicRenderContext =
- | CanvasRenderingContext2D
- | OffscreenCanvasRenderingContext2D;
-
-function createTempCanvas({
- width,
- height,
-}: {
- width: number;
- height: number;
-}): OffscreenCanvas | HTMLCanvasElement {
- try {
- return new OffscreenCanvas(width, height);
- } catch {
- const canvas = document.createElement("canvas");
- canvas.width = width;
- canvas.height = height;
- return canvas;
- }
-}
-
-function applyStroke({
- ctx,
- path,
- strokeWidth,
- strokeColor,
-}: {
- ctx: GraphicRenderContext;
- path: Path2D;
- strokeWidth: number;
- strokeColor: string;
-}) {
- ctx.strokeStyle = strokeColor;
- ctx.lineWidth = strokeWidth;
- ctx.stroke(path);
-}
-
-export function applyAlignedStroke({
- ctx,
- path,
- strokeWidth,
- strokeAlign,
- strokeColor,
-}: {
- ctx: GraphicRenderContext;
- path: Path2D;
- strokeWidth: number;
- strokeAlign: GraphicStrokeAlign;
- strokeColor: string;
-}): void {
- if (strokeWidth <= 0) {
- return;
- }
-
- if (strokeAlign === "inside") {
- ctx.save();
- ctx.clip(path);
- applyStroke({
- ctx,
- path,
- strokeWidth: strokeWidth * 2,
- strokeColor,
- });
- ctx.restore();
- return;
- }
-
- if (strokeAlign === "outside") {
- const strokeCanvas = createTempCanvas({
- width: ctx.canvas.width,
- height: ctx.canvas.height,
- });
- const strokeCtx = strokeCanvas.getContext("2d") as GraphicRenderContext | null;
- if (!strokeCtx) {
- return;
- }
-
- applyStroke({
- ctx: strokeCtx,
- path,
- strokeWidth: strokeWidth * 2,
- strokeColor,
- });
-
- // Keep only the outer half of the doubled stroke so alpha fills do not
- // leave a visible inner stroke behind.
- strokeCtx.globalCompositeOperation = "destination-out";
- strokeCtx.fill(path);
-
- ctx.drawImage(strokeCanvas, 0, 0);
- return;
- }
-
- applyStroke({
- ctx,
- path,
- strokeWidth,
- strokeColor,
- });
-}
|