waveterm/xterm.js
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Don't bother checking beyond cols

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Daniel Imms
2018-11-23 06:48:37 -08:00
parent 66272eb310
commit d9513ce50d
1 changed files with 1 additions and 8 deletions
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src/renderer/dom/DomRendererRowFactory.ts
+1 -8
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@@ -29,7 +29,7 @@ export class DomRendererRowFactory {
// properly support reflow and disallow data to go beyond the right-side of
// the viewport).
let lineLength = 0;
for (let x = lineData.length - 1; x >= 0; x--) {
for (let x = Math.min(lineData.length, cols) - 1; x >= 0; x--) {
const charData = lineData.get(x);
const code = charData[CHAR_DATA_CODE_INDEX];
if (code !== NULL_CELL_CODE || (isCursorRow && x === cursorX)) {
@@ -38,13 +38,7 @@ export class DomRendererRowFactory {
}
}
let colCount = 0;
for (let x = 0; x < lineLength; x++) {
// Don't allow any buffer to the right to be displayed
if (colCount >= cols) {
continue;
}
const charData = lineData.get(x);
const char = charData[CHAR_DATA_CHAR_INDEX];
const attr = charData[CHAR_DATA_ATTR_INDEX];
@@ -113,7 +107,6 @@ export class DomRendererRowFactory {
charElement.classList.add(`xterm-bg-${bg}`);
}
fragment.appendChild(charElement);
colCount += width;
}
return fragment;
}