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Mariusz Jurowicz
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100 changes: 100 additions & 0 deletions
100
js/notebook/src/tableDisplay/dataGrid/cell/ImageCellRenderer.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,100 @@ | ||
| /* | ||
| * Copyright 2018 TWO SIGMA OPEN SOURCE, LLC | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| import {CellRenderer, GraphicsContext} from "@phosphor/datagrid"; | ||
| import {BeakerXDataGrid} from "../BeakerXDataGrid"; | ||
| import {BeakerXDataStore} from "../store/BeakerXDataStore"; | ||
| import {DataGridHelpers} from "../dataGridHelpers"; | ||
| import getBackgroundColor = DataGridHelpers.getBackgroundColor; | ||
| import ICellConfig = CellRenderer.ICellConfig; | ||
| import ColumnManager from "../column/ColumnManager"; | ||
| import {selectColumnWidth} from "../column/selectors"; | ||
|
|
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| export default class ImageCellRenderer extends CellRenderer { | ||
| store: BeakerXDataStore; | ||
| dataGrid: BeakerXDataGrid; | ||
| backgroundColor: CellRenderer.ConfigOption<string>; | ||
|
|
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| constructor(dataGrid: BeakerXDataGrid) { | ||
| super(); | ||
|
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| this.store = dataGrid.store; | ||
| this.dataGrid = dataGrid; | ||
| this.backgroundColor = (config: ICellConfig) => getBackgroundColor(this.dataGrid, config); | ||
| } | ||
|
|
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| drawBackground(gc: GraphicsContext, config: CellRenderer.ICellConfig): void { | ||
| let color = CellRenderer.resolveOption(this.backgroundColor, config); | ||
|
|
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| if (!color) { | ||
| return; | ||
| } | ||
|
|
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| gc.fillStyle = color; | ||
| gc.fillRect(config.x, config.y, config.width, config.height); | ||
| } | ||
|
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| paint(gc: GraphicsContext, config: CellRenderer.ICellConfig): void { | ||
| this.drawBackground(gc, config); | ||
| this.drawImage(gc, config); | ||
| } | ||
|
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| drawImage(gc: GraphicsContext, config: CellRenderer.ICellConfig): void { | ||
| if (!config.value) { | ||
| return; | ||
| } | ||
|
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| const img = new Image(); | ||
| const dpiRatio = this.dataGrid['_dpiRatio']; | ||
| const x = config.x * dpiRatio; | ||
| const y = config.y * dpiRatio; | ||
| const width = config.width * dpiRatio; | ||
| const height = config.height * dpiRatio; | ||
|
|
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| gc.setTransform(1, 0, 0, 1, 0, 0); | ||
| gc.beginPath(); | ||
| gc.rect(x, y, width, height - 1); | ||
| gc.clip(); | ||
|
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| img.src = `${config.value}`; | ||
|
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| if (!img.complete) { | ||
| img.onload = () => { | ||
| this.dataGrid.repaint(x, y, img.width, img.height); | ||
| } | ||
| } else { | ||
| this.resizeCell({ ...config }, img.width, img.height); | ||
|
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| gc.drawImage(img, x, y); | ||
| } | ||
| } | ||
|
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| resizeCell(config, width, height) { | ||
| setTimeout(() => { | ||
| const column = this.dataGrid.columnManager.getColumnByPosition( | ||
| ColumnManager.createPositionFromCell(config) | ||
| ); | ||
|
|
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| if (this.dataGrid.sectionSize('row', config.row) < height) { | ||
| this.dataGrid.resizeSection('row', config.row, height); | ||
| } | ||
|
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| if (selectColumnWidth(this.dataGrid.store.state, column) < width) { | ||
| column.setWidth(width); | ||
| } | ||
| }); | ||
| } | ||
| } |
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57 changes: 57 additions & 0 deletions
57
js/notebook/test/src/tableDisplay/dataGrid/cell/ImageCellRenderer.spec.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,57 @@ | ||
| /* | ||
| * Copyright 2017 TWO SIGMA OPEN SOURCE, LLC | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| import { expect } from 'chai'; | ||
| import { BeakerXDataGrid } from "@beakerx/tableDisplay/dataGrid/BeakerXDataGrid"; | ||
| import {GraphicsContext, CellRenderer} from "@phosphor/datagrid"; | ||
| import modelStateMock from "../mock/modelStateMock"; | ||
| import createStore from "@beakerx/tableDisplay/dataGrid/store/BeakerXDataStore"; | ||
| import ImageCellRenderer from "@beakerx/tableDisplay/dataGrid/cell/ImageCellRenderer"; | ||
|
|
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| describe('ImageCellRenderer', () => { | ||
| let dataGrid; | ||
| let cellRenderer; | ||
| let dataStore; | ||
| let gc: GraphicsContext; | ||
|
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| before(() => { | ||
| dataStore = createStore(modelStateMock); | ||
| dataGrid = new BeakerXDataGrid({}, dataStore); | ||
|
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| gc = new GraphicsContext(dataGrid['_canvasGC']); | ||
|
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| gc['_context'].drawImage = () => {}; | ||
| cellRenderer = new ImageCellRenderer(dataGrid); | ||
| }); | ||
|
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| after(() => { | ||
| dataGrid.destroy(); | ||
| }); | ||
|
|
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| it('should be an instance of CellRenderer', () => { | ||
| expect(cellRenderer).to.be.an.instanceof(CellRenderer); | ||
| }); | ||
|
|
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| it('should implement drawImage method', () => { | ||
| expect(cellRenderer).to.have.property('drawImage'); | ||
| expect(cellRenderer.drawImage).to.be.a('Function'); | ||
| }); | ||
|
|
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| it('should implement resizeCell method', () => { | ||
| expect(cellRenderer).to.have.property('resizeCell'); | ||
| expect(cellRenderer.resizeCell).to.be.a('Function'); | ||
| }); | ||
| }); |
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