d2b4ed3cea
- Remove the dependency on fit-curve; - Improve the way to draw the current line in using a Path2D and in clearing only the last part of the curve instead of clearing all the canvas; - Smooth the curve when drawing to avoid to have some changes after the drawing ends; - Make the smoothing a bit less agressive.
94 lines
2.4 KiB
JavaScript
94 lines
2.4 KiB
JavaScript
/* Copyright 2022 Mozilla Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import { CommandManager } from "../../src/display/editor/tools.js";
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describe("editor", function () {
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describe("Command Manager", function () {
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it("should check undo/redo", function () {
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const manager = new CommandManager(4);
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let x = 0;
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const makeDoUndo = n => ({ cmd: () => (x += n), undo: () => (x -= n) });
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manager.add({ ...makeDoUndo(1), mustExec: true });
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expect(x).toEqual(1);
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manager.add({ ...makeDoUndo(2), mustExec: true });
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expect(x).toEqual(3);
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manager.add({ ...makeDoUndo(3), mustExec: true });
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expect(x).toEqual(6);
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manager.undo();
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expect(x).toEqual(3);
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manager.undo();
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expect(x).toEqual(1);
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manager.undo();
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expect(x).toEqual(0);
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manager.undo();
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expect(x).toEqual(0);
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manager.redo();
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expect(x).toEqual(1);
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manager.redo();
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expect(x).toEqual(3);
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manager.redo();
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expect(x).toEqual(6);
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manager.redo();
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expect(x).toEqual(6);
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manager.undo();
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expect(x).toEqual(3);
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manager.redo();
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expect(x).toEqual(6);
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});
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});
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it("should hit the limit of the manager", function () {
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const manager = new CommandManager(3);
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let x = 0;
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const makeDoUndo = n => ({ cmd: () => (x += n), undo: () => (x -= n) });
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manager.add({ ...makeDoUndo(1), mustExec: true }); // 1
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manager.add({ ...makeDoUndo(2), mustExec: true }); // 3
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manager.add({ ...makeDoUndo(3), mustExec: true }); // 6
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manager.add({ ...makeDoUndo(4), mustExec: true }); // 10
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expect(x).toEqual(10);
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manager.undo();
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manager.undo();
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expect(x).toEqual(3);
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manager.undo();
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expect(x).toEqual(1);
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manager.undo();
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expect(x).toEqual(1);
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manager.redo();
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manager.redo();
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expect(x).toEqual(6);
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manager.add({ ...makeDoUndo(5), mustExec: true });
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expect(x).toEqual(11);
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});
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});
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