Release package version 0.0.2

Added base rendering
2026-03-07 23:02:31 +07:00 · 2026-03-07 23:02:31 +07:00 · a100988848
commit a100988848
parent 63818eb2b8
7 changed files with 587 additions and 85 deletions
--- a/lib/src/artist.ts
+++ b/lib/src/artist.ts
@ -0,0 +1,178 @@
+import { degToRad } from "@gxc-solutions/math/functions";
+import { IPoint, ISize } from "@gxc-solutions/math/interfaces";
+import { IFont, IStroke, ITransform } from "@gxc-solutions/renderer-base";
+import {
+  IBaseFill,
+  ISolidFill,
+  IConicGradient,
+  ILinerGradient,
+  IRadialGradient,
+  ITextureFill,
+} from "@gxc-solutions/renderer-base/interfaces/fill";
+import {
+  isTextureFill,
+  isConicGradientFill,
+  isLinerGradientFill,
+  isRadialGradientFill,
+  isSolidFill,
+} from "@gxc-solutions/renderer-base/utils/fill";
+
+export class Artist {
+  constructor(private _context: CanvasRenderingContext2D) {}
+
+  setFont(font: IFont) {
+    const { color, font: fontFamily, size } = font;
+    this._context.fillStyle = `rgb(${color.r}, ${color.g}, ${color.b}, ${color.a})`;
+
+    this._context.font = `${size}px ${fontFamily}`;
+    this._context.textAlign = "left";
+    this._context.textBaseline = "middle";
+    this._context.direction = "ltr";
+    this._context.fontKerning = "auto";
+    this._context.fontStretch = "normal";
+    this._context.fontVariantCaps = "normal";
+    // this._context.letterSpacing
+    this._context.textRendering = "auto";
+    //this._context.wordSpacing
+  }
+
+  setStroke(stroke: IStroke) {
+    const { color, dash, width } = stroke;
+    this._context.lineWidth = width;
+    this._context.strokeStyle = this._context.fillStyle = `rgb(${color.r}, ${color.g}, ${color.b}, ${color.a})`;
+    this._context.setLineDash(dash);
+  }
+
+  setTransform(transform: ITransform) {
+    this._context.translate(transform.translateX, transform.translateY);
+    this._context.scale(transform.scaleX, transform.scaleY);
+    this._context.rotate(degToRad(transform.rotate));
+  }
+
+  setFill(fill: IBaseFill) {
+    if (isSolidFill(fill)) {
+      this._setSolidFill(fill);
+    }
+    if (isRadialGradientFill(fill)) {
+      this._setRadialGradientFill(fill);
+    }
+    if (isLinerGradientFill(fill)) {
+      this._setLinerGradientFill(fill);
+    }
+    if (isConicGradientFill(fill)) {
+      this._setConicGradientFill(fill);
+    }
+    if (isTextureFill(fill)) {
+      this._setTextureFill(fill);
+    }
+  }
+
+  private _setSolidFill(fill: ISolidFill) {
+    const { color } = fill;
+    this._context.fillStyle = `rgb(${color.r}, ${color.g}, ${color.b}, ${color.a})`;
+  }
+
+  private _setRadialGradientFill(fill: IRadialGradient) {
+    console.warn(`${fill.type} not implemented!`);
+  }
+
+  private _setLinerGradientFill(fill: ILinerGradient) {
+    console.warn(`${fill.type} not implemented!`);
+  }
+
+  private _setConicGradientFill(fill: IConicGradient) {
+    console.warn(`${fill.type} not implemented!`);
+  }
+
+  private _setTextureFill(fill: ITextureFill) {
+    console.warn(`${fill.type} not implemented!`);
+  }
+
+  drawRotatedStrokeRect(position: IPoint, size: ISize, angle: number, color: string) {
+    this._context.save(); // сохраняем систему координат
+    this._context.translate(position.x + size.width / 2, position.y + size.height / 2); // переносим начало в центр фигуры
+    this._context.rotate(degToRad(angle)); // вращаем систему координат
+    this._context.strokeStyle = color;
+    this._context.lineWidth = 2;
+    this._context.strokeRect(-size.width / 2, -size.height / 2, size.width, size.height);
+    this._context.restore(); // возвращаем всё обратно
+  }
+
+  drawRect(position: IPoint, size: ISize, color: string) {
+    this._context.strokeStyle = color;
+    this._context.lineWidth = 2;
+    this._context.strokeRect(size.width, size.height, size.width, size.height);
+    this._context.restore(); // возвращаем всё обратно
+  }
+
+  drawRotatedRect(position: IPoint, size: ISize, angle: number, color: string) {
+    this._context.save();
+    // переносим систему координат в центр прямоугольника
+    this._context.translate(position.x + size.width / 2, position.y + size.height / 2);
+    // поворот вокруг центра
+    this._context.rotate(degToRad(angle));
+    // рисуем прямоугольник так, чтобы его центр оказался в (0,0)
+    this._context.fillStyle = color;
+    this._context.fillRect(-size.width / 2, -size.height / 2, size.width, size.height);
+
+    this._context.restore();
+  }
+
+  drawEllipse(position: IPoint, size: ISize, angle: number, color: string, segment = 360) {
+    this._context.save();
+    this._context.fillStyle = color;
+    this._context.beginPath();
+    this._context.ellipse(position.x, position.y, size.width / 2, size.height / 2, degToRad(angle), 0, degToRad(segment));
+    this._context.fill();
+    this._context.restore();
+  }
+
+  drawLine(start: IPoint, end: IPoint, width: number, color: string) {
+    this._context.save();
+    this._context.beginPath();
+    this._context.lineWidth = width;
+    this._context.strokeStyle = color;
+    this._context.moveTo(start.x, start.y);
+    this._context.lineTo(end.x, end.y);
+    this._context.stroke();
+    this._context.restore();
+  }
+
+  drawText(text: string, position: IPoint, font: string, size: number, angle: number, color: string) {
+    this._context.save();
+    this._context.translate(position.x, position.y);
+    this._context.rotate(degToRad(angle));
+    this._context.fillStyle = color;
+    this._context.font = `${size}px ${font}`;
+    // TODO
+    this._context.textAlign = "left";
+    // TODO
+    this._context.textBaseline = "middle";
+    this._context.direction = "ltr";
+    console.warn(this._context.measureText(text));
+
+    this._context.fillText(text, position.x, position.y);
+    this._context.restore();
+  }
+
+  drawImage(source: HTMLImageElement, position: IPoint, size: ISize) {
+    this._context.save();
+    const scaleY = size.height / source.naturalHeight;
+    const scaleX = size.width / source.naturalWidth;
+
+    this._context.translate(position.x + size.width / 2, position.y + size.height / 2);
+    this._context.scale(scaleY, scaleX);
+
+    this._context.drawImage(source, -source.naturalWidth / 2, -source.naturalHeight / 2);
+    this._context.restore();
+  }
+
+  drawPath(path: string) {
+    const path2d = new Path2D(path);
+    this._context.stroke(path2d);
+  }
+
+  draw() {
+    // this._context.
+  }
+}
--- a/lib/src/canvas-2d-renderer.ts
+++ b/lib/src/canvas-2d-renderer.ts
@ -1,51 +1,29 @@
-import { degToRad } from "@gxc-solutions/math/functions";
-import { IDrawObject, IRenderer, IScene } from "@gxc-solutions/renderer-base/interfaces";
-import { SequentialDrawThread } from "./draw-thread";
-
-const drawRotatedRect = (
-  context: CanvasRenderingContext2D | OffscreenCanvasRenderingContext2D,
-  x: number,
-  y: number,
-  width: number,
-  height: number,
-  angle: number,
-  color: string,
-) => {
-  context.save();
-  // переносим систему координат в центр прямоугольника
-  context.translate(x + width / 2, y + height / 2);
-  // поворот вокруг центра
-  context.rotate(degToRad(angle));
-  // рисуем прямоугольник так, чтобы его центр оказался в (0,0)
-  context.fillStyle = color;
-  context.fillRect(-width / 2, -height / 2, width, height);
-
-  context.restore();
-};
-
-const drawRotatedStrokeRect = (
-  context: CanvasRenderingContext2D | OffscreenCanvasRenderingContext2D,
-  x: number,
-  y: number,
-  width: number,
-  height: number,
-  angle: number,
-  color: string,
-) => {
-  context.save(); // сохраняем систему координат
-  context.translate(x + width / 2, y + height / 2); // переносим начало в центр фигуры
-  context.rotate(degToRad(angle)); // вращаем систему координат
-  context.strokeStyle = color;
-  context.lineWidth = 2;
-  context.strokeRect(-width / 2, -height / 2, width, height);
-  context.restore(); // возвращаем всё обратно
-};
+import {
+  DrawLeafs,
+  IBaseFill,
+  IDrawNode,
+  IEllipseDrawObject,
+  IImageDrawObject,
+  IRectangleDrawObject,
+  IRenderer,
+  IScene,
+  ITextDrawObject,
+} from "@gxc-solutions/renderer-base/interfaces";
+import {
+  isDrawNode,
+  isEllipseDrawObject,
+  isImageDrawObject,
+  isRectangleDrawObject,
+  isTextDrawObject,
+} from "@gxc-solutions/renderer-base/utils/draw-object";
+import { Artist } from "./artist";
+import { degToRad } from "@gxc-solutions/math";

 export class Canvas2DRenderer implements IRenderer {
  public readonly type = "2d";

  private _context: CanvasRenderingContext2D;
-  private _thread: SequentialDrawThread<(offscreenCanvas: OffscreenCanvasRenderingContext2D, objects: IDrawObject[]) => void>;
+  private _artist: Artist;

  get holder() {
    return this._canvas;
@ -53,41 +31,103 @@ export class Canvas2DRenderer implements IRenderer {

  constructor(private _canvas: HTMLCanvasElement) {
    this._context = this._canvas.getContext("2d");
-
-    this._thread = new SequentialDrawThread(
-      (context2d, objects: IDrawObject[]) => {
-        const canvas = context2d.canvas;
-        context2d.clearRect(0, 0, canvas.width, canvas.height);
-        objects.forEach((drawObject) => {
-          if (drawObject.type === "rectangle-object") {
-            drawRotatedRect(
-              context2d,
-              drawObject.x,
-              drawObject.y,
-              drawObject.width,
-              drawObject.height,
-              drawObject.angle,
-              drawObject.color, // TODO в worker не знает про toString()
-            );
-          }
-        });
-      },
-      this._canvas.width,
-      this._canvas.height,
-      [drawRotatedRect, drawRotatedStrokeRect, degToRad],
-    );
+    this._artist = new Artist(this._context);
  }

  public async render(scene: IScene): Promise<void> {
-    const bitmap = await this._thread.run([scene.objects]);
+    this._context.clearRect(0, 0, this._canvas.width, this._canvas.height);
+    this.renderBg(scene.background);
+    scene.static.forEach((leaf) => this.drawLeaf(leaf));
+    this.renderNode(scene.node);
+    this.renderNode(scene.selection);
+  }

-    const prev = this._context.globalCompositeOperation;
-    this._context.globalCompositeOperation = "copy";
-    // Важно: убедись, что размеры совпадают
-    this._context.drawImage(bitmap, 0, 0, this._canvas.width, this._canvas.height);
-    this._context.globalCompositeOperation = prev;
+  renderBg(fill: IBaseFill) {
+    this._context.save();
+    this._artist.setFill(fill);
+    this._context.fillRect(0, 0, this._canvas.width, this._canvas.height);
+    this._context.restore();
+  }

-    // Освобождаем ресурсы
-    if ("close" in bitmap) bitmap.close();
+  renderNode(drawNode: IDrawNode) {
+    drawNode.children.forEach((leaf) => {
+      if (isDrawNode(leaf)) {
+        this._artist.setTransform(leaf.transform);
+        this._context.save();
+        this.renderNode(leaf);
+        this._context.restore();
+      }
+      this.drawLeaf(leaf as DrawLeafs);
+    });
+  }
+
+  private drawLeaf(leaf: DrawLeafs) {
+    if (isEllipseDrawObject(leaf)) {
+      this._context.save();
+      const dn = leaf as IEllipseDrawObject;
+      this._context.globalAlpha = dn.opacity;
+      this._context.globalCompositeOperation = dn.blendMode as GlobalCompositeOperation;
+      this._artist.setTransform(dn.transform);
+      this._artist.setFill(dn.fill);
+      this._context.ellipse(
+        dn.ellipse.center.x - dn.ellipse.radiusX,
+        dn.ellipse.center.y - dn.ellipse.radiusY,
+        dn.ellipse.radiusX,
+        dn.ellipse.radiusY,
+        degToRad(0),
+        0,
+        degToRad(360),
+      );
+      this._context.fill();
+      this._artist.setStroke(dn.stroke);
+      if (dn.stroke.width > 0) {
+        this._context.stroke();
+      }
+      this._context.restore();
+    }
+    if (isImageDrawObject(leaf)) {
+      this._context.save();
+      const dn = leaf as IImageDrawObject;
+      this._context.globalAlpha = dn.opacity;
+      this._context.globalCompositeOperation = dn.blendMode as GlobalCompositeOperation;
+      this._artist.setTransform(dn.transform);
+
+      this._artist.drawImage(
+        dn.source,
+        { x: dn.rectangle.x, y: dn.rectangle.y },
+        { width: dn.rectangle.width, height: dn.rectangle.height },
+      );
+      this._context.restore();
+    }
+    if (isRectangleDrawObject(leaf)) {
+      this._context.save();
+      const dn = leaf as IRectangleDrawObject;
+      this._context.globalAlpha = dn.opacity;
+      this._context.globalCompositeOperation = dn.blendMode as GlobalCompositeOperation;
+      this._artist.setTransform(dn.transform);
+      this._artist.setFill(dn.fill);
+      this._context.fillRect(dn.rectangle.x, dn.rectangle.y, dn.rectangle.width, dn.rectangle.height);
+      this._artist.setStroke(dn.stroke);
+      if (dn.stroke.width > 0) {
+        this._context.strokeRect(dn.rectangle.x, dn.rectangle.y, dn.rectangle.width, dn.rectangle.height);
+      }
+      this._context.restore();
+    }
+    if (isTextDrawObject(leaf)) {
+      this._context.save();
+      const dn = leaf as ITextDrawObject;
+      this._context.globalAlpha = dn.opacity;
+      this._context.globalCompositeOperation = dn.blendMode as GlobalCompositeOperation;
+      this._artist.setTransform(dn.transform);
+      this._artist.setStroke(dn.textStroke);
+      this._artist.setFont(dn.font);
+      const metrics = this._context.measureText(dn.text);
+      console.warn(metrics);
+      if (dn.textStroke.width > 0) {
+        this._context.strokeText(dn.text, dn.rectangle.x, dn.rectangle.y);
+      }
+      this._context.fillText(dn.text, dn.rectangle.x, dn.rectangle.y);
+      this._context.restore();
+    }
  }
 }
--- a/lib/src/package.json
+++ b/lib/src/package.json
@ -1,6 +1,6 @@
 {
  "name": "@gxc-solutions/renderer-canvas-2d",
-  "version": "0.0.1",
+  "version": "0.0.2",
  "main": "index.js",
  "author": "GXC Solutions",
  "publishConfig": {
--- a/package-lock.json
+++ b/package-lock.json
@ -1,16 +1,16 @@
 {
-  "name": "template-of-lib-repo",
+  "name": "renderer-canvas-2d",
  "version": "0.0.0",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
-      "name": "template-of-lib-repo",
+      "name": "renderer-canvas-2d",
      "version": "0.0.0",
      "license": "ISC",
      "dependencies": {
        "@gxc-solutions/math": "^0.0.1",
-        "@gxc-solutions/renderer-base": "^0.0.3"
+        "@gxc-solutions/renderer-base": "^0.0.9"
      },
      "devDependencies": {
        "@eslint/eslintrc": "^3.3.4",
@ -701,9 +701,12 @@
      "integrity": "sha512-m6lxTkjXkyaUoI3+cJKpgt/AQlyApLSJ2p9D2EJ9+XzHCSjOWs29GzczPLgopYdLEWYN/YPr77V4CScGpR7qxw=="
    },
    "node_modules/@gxc-solutions/renderer-base": {
-      "version": "0.0.3",
-      "resolved": "https://npm.gxc-solutions.ru/@gxc-solutions/renderer-base/-/renderer-base-0.0.3.tgz",
-      "integrity": "sha512-rNglFmWe3LNbTn/KV8s7waV5IPgZ7T+NUbNSChiK+TdGK8bAfuE5yyAeJ7pmvpYbAaRC4emmgnpDQlRr0Kx3nA=="
+      "version": "0.0.9",
+      "resolved": "https://npm.gxc-solutions.ru/@gxc-solutions/renderer-base/-/renderer-base-0.0.9.tgz",
+      "integrity": "sha512-aLu3eTyzDcGQw+FsYt25MNg/6gNORXa8FynUX5rtEFinmdFEDdqxOr08dhFViw1FIT3ZdYtJbY9aegFK3V/OcA==",
+      "peerDependencies": {
+        "@gxc-solutions/math": "^0.0.1"
+      }
    },
    "node_modules/@humanfs/core": {
      "version": "0.19.1",
--- a/package.json
+++ b/package.json
@ -1,5 +1,5 @@
 {
-  "name": "template-of-lib-repo",
+  "name": "renderer-canvas-2d",
  "version": "0.0.0",
  "main": "index.js",
  "scripts": {
@ -32,6 +32,6 @@
  },
  "dependencies": {
    "@gxc-solutions/math": "^0.0.1",
-    "@gxc-solutions/renderer-base": "^0.0.3"
+    "@gxc-solutions/renderer-base": "^0.0.9"
  }
 }
--- a/playground/index.html
+++ b/playground/index.html
@ -6,7 +6,8 @@
  <title>Playground</title>
 </head>
 <body>
-  <h1>Hello world!</h1>
+  <h1>2D Canvas Renderer Playground</h1>
+  <canvas width="800" height="800" id="canvas"></canvas>

  <script type="module" src="./index.ts"></script>
 </body>
--- a/playground/index.ts
+++ b/playground/index.ts
@ -1 +1,281 @@
-console.warn("Hello world!");
+import { Canvas2DRenderer } from "./renderer-canvas-2d/canvas-2d-renderer";
+const canvas = document.getElementById("canvas") as HTMLCanvasElement;
+const renderer = new Canvas2DRenderer(canvas);
+
+const image = new Image(100, 100);
+image.src = "https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcSX7vk1hi2Qnqbwbkz4t9x-akEeuuHA78H9PA&s";
+await new Promise<void>((resolve) => image.addEventListener("load", () => resolve()));
+
+await renderer.render({
+  background: {
+    type: "solid",
+    color: {
+      r: 200,
+      g: 255,
+      b: 255,
+      a: 1,
+    },
+  },
+  node: {
+    id: "a",
+    type: "node",
+    children: [
+      {
+        type: "rectangle",
+        blendMode: "source-over",
+        fill: {
+          type: "solid",
+          color: {
+            r: 100,
+            g: 100,
+            b: 100,
+            a: 1,
+          },
+        },
+        id: "a",
+        name: "test 2",
+        opacity: 1,
+        rectangle: {
+          width: 100,
+          height: 100,
+          x: 0,
+          y: 0,
+        },
+        stroke: {
+          width: 2,
+          color: {
+            r: 0,
+            g: 0,
+            b: 0,
+            a: 1,
+          },
+          dash: [],
+        },
+        transform: {
+          rotate: 30,
+          scaleX: 1,
+          scaleY: 1,
+          skewX: 0,
+          skewY: 0,
+          translateX: 0,
+          translateY: 0,
+        },
+      },
+      {
+        type: "ellipse",
+        blendMode: "source-over",
+        ellipse: {
+          center: { x: 300, y: 300 },
+          radiusX: 30,
+          radiusY: 30,
+        },
+        fill: {
+          type: "solid",
+          color: {
+            r: 150,
+            g: 0,
+            b: 100,
+            a: 1,
+          },
+        },
+        id: "a",
+        name: "test ellipse",
+        opacity: 0.5,
+        stroke: {
+          width: 5,
+          color: {
+            r: 0,
+            g: 255,
+            b: 0,
+            a: 1,
+          },
+          dash: [],
+        },
+        transform: {
+          scaleX: 1,
+          scaleY: 1,
+          translateX: 0,
+          translateY: 0,
+          rotate: 0,
+          skewX: 0,
+          skewY: 0,
+        },
+      },
+      {
+        type: "text",
+        blendMode: "source-over",
+        text: "Hello world",
+        font: {
+          font: "serif",
+          color: {
+            r: 255,
+            g: 0,
+            b: 0,
+            a: 1,
+          },
+          size: 72,
+        },
+        textStroke: {
+          color: {
+            r: 100,
+            g: 200,
+            b: 0,
+            a: 1,
+          },
+          dash: [],
+          width: 0,
+        },
+        rectangle: {
+          x: 150,
+          y: 150,
+          width: 100,
+          height: 100,
+        },
+        fill: {
+          type: "solid",
+          color: {
+            r: 150,
+            g: 0,
+            b: 100,
+            a: 1,
+          },
+        },
+        id: "a",
+        name: "test ellipse",
+        opacity: 0.5,
+        stroke: {
+          width: 5,
+          color: {
+            r: 0,
+            g: 255,
+            b: 0,
+            a: 1,
+          },
+          dash: [],
+        },
+        transform: {
+          scaleX: 1,
+          scaleY: 1,
+          translateX: 0,
+          translateY: 0,
+          rotate: 30,
+          skewX: 0,
+          skewY: 0,
+        },
+      },
+      {
+        type: "image",
+        blendMode: "source-over",
+        source: image,
+        fill: {
+          type: "solid",
+          color: {
+            r: 100,
+            g: 100,
+            b: 100,
+            a: 1,
+          },
+        },
+        id: "a",
+        name: "test 2",
+        opacity: 1,
+        rectangle: {
+          width: 200,
+          height: 200,
+          x: 300,
+          y: 300,
+        },
+        stroke: {
+          width: 2,
+          color: {
+            r: 0,
+            g: 0,
+            b: 0,
+            a: 1,
+          },
+          dash: [],
+        },
+        transform: {
+          rotate: -15,
+          scaleX: 1,
+          scaleY: 1,
+          skewX: 0,
+          skewY: 0,
+          translateX: 0,
+          translateY: 0,
+        },
+      },
+    ],
+    name: "test",
+    transform: {
+      rotate: 0,
+      scaleX: 1,
+      scaleY: 1,
+      skewX: 0,
+      skewY: 0,
+      translateX: 0,
+      translateY: 0,
+    },
+  },
+  selection: {
+    id: "",
+    type: "node",
+    name: "",
+    children: [],
+    transform: {
+      rotate: 0,
+      scaleX: 1,
+      scaleY: 1,
+      skewX: 0,
+      skewY: 0,
+      translateX: 0,
+      translateY: 0,
+    },
+  },
+  spotlight: [],
+  static: [
+    {
+      type: "rectangle",
+      blendMode: "source-over",
+      fill: {
+        type: "solid",
+        color: {
+          r: 255,
+          g: 255,
+          b: 255,
+          a: 0,
+        },
+      },
+      id: "",
+      name: "",
+      opacity: 1,
+      rectangle: {
+        width: 500,
+        height: 500,
+        x: 0,
+        y: 0,
+      },
+      stroke: {
+        width: 2,
+        color: {
+          r: 255,
+          g: 0,
+          b: 0,
+          a: 1,
+        },
+        dash: [],
+      },
+      transform: {
+        rotate: 0,
+        scaleX: 1,
+        scaleY: 1,
+        skewX: 0,
+        skewY: 0,
+        translateX: 0,
+        translateY: 0,
+      },
+    },
+  ],
+});
+
+console.warn(renderer);