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Properly clear underscore glyph's background

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See microsoft/vscode#158497
This commit is contained in:
Daniel Imms
2022-08-24 15:36:03 -07:00
parent 7e6282e9c2
commit e40cf0684e
1 changed files with 4 additions and 1 deletions
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addons/xterm-addon-webgl/src/atlas/WebglCharAtlas.ts
+4 -1
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@@ -560,7 +560,10 @@ export class WebglCharAtlas implements IDisposable {
let isBeyondCellBounds = clearColor(this._tmpCtx.getImageData(padding, padding, this._config.scaledCellWidth, this._config.scaledCellHeight), backgroundColor, foregroundColor, enableClearThresholdCheck);
if (isBeyondCellBounds) {
for (let offset = 1; offset <= 5; offset++) {
this._tmpCtx.clearRect(0, 0, this._tmpCanvas.width, this._tmpCanvas.height);
this._tmpCtx.save();
this._tmpCtx.fillStyle = backgroundColor.css;
this._tmpCtx.fillRect(0, 0, this._tmpCanvas.width, this._tmpCanvas.height);
this._tmpCtx.restore();
this._tmpCtx.fillText(chars, padding, padding + this._config.scaledCharHeight - offset);
isBeyondCellBounds = clearColor(this._tmpCtx.getImageData(padding, padding, this._config.scaledCellWidth, this._config.scaledCellHeight), backgroundColor, foregroundColor, enableClearThresholdCheck);
if (!isBeyondCellBounds) {