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edit.js: scroll further left/right indicator

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minjaesong
2021-04-16 11:38:50 +09:00
parent fba4ccb0cb
commit 6ca20ce847
1 changed files with 12 additions and 2 deletions
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14
assets/disk0/tvdos/bin/edit.js
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@@ -160,8 +160,18 @@ function drawMenubarBase(index) {
function drawTextLine(paintRow) {
con.color_pair(COL_TEXT, COL_BACK);
con.curs_set(0);
for(let x = 0; x < paintWidth; x++) {
let charCode = (undefined === textbuffer[scroll + paintRow]) ? 0 : textbuffer[scroll + paintRow].charCodeAt(x + scrollHor)|0; // or-zero to convert NaN into 0
for (let x = 0; x < paintWidth; x++) {
let text = textbuffer[scroll + paintRow];
let charCode =
// nonexisting text row
(undefined === textbuffer[scroll + paintRow]) ? 0 :
// left scroll indicator
(x == 0 && scrollHor > 0) ? 17 :
// right scroll indicator
(x == paintWidth - 1 && x + scrollHor + 1 < text.length) ? 16 :
// plain text
text.charCodeAt(x + scrollHor)|0; // or-zero to convert NaN into 0
con.mvaddch(PAINT_START_Y + paintRow, PAINT_START_X + x, charCode);
}
}