deleteColumns method
Implementation
void deleteColumns(int count) {
if (!isInVerticalMargin || !isInHorizontalMargin) {
return;
}
count = min(count, _marginRight - _cursorX + 1);
for (var row = absoluteMarginTop; row <= absoluteMarginBottom; row++) {
lines[row]
.removeCells(_cursorX, count, _blankCellStyle, _marginRight + 1);
}
}