LogarithmPlotter/common/test/mock/canvas.mjs

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/**
* LogarithmPlotter - 2D plotter software to make BODE plots, sequences and distribution functions.
* Copyright (C) 2021-2024 Ad5001
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
export class MockCanvas {
constructor(mockLoading = false) {
this.mockLoading = mockLoading
}
getContext(context) {
throw new Error("MockCanvas.getContext not implemented")
}
markDirty(rect) {
this.requestPaint()
}
loadImageAsync(image) {
return new Promise((resolve, reject) => {
resolve()
})
}
/**
* Image loading is instantaneous.
* @param {string} image
* @return {boolean}
*/
isImageLoading(image) {
return this.mockLoading
}
/**
* Image loading is instantaneous.
* @param {string} image
* @return {boolean}
*/
isImageLoaded(image) {
return !this.mockLoading
}
requestPaint() {
}
}