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back_color_erase comments.

This commit is contained in:
Christopher Jeffrey 2013-07-27 06:53:09 -05:00
parent 8f989eeadd
commit 80ae319225
1 changed files with 26 additions and 21 deletions
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47
lib/widget.js
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@ -891,7 +891,9 @@ Screen.prototype.draw = function(start, end) {
// If there's more than 10 spaces, use EL regardless
// and start over drawing the rest of line. Might
// not be worth it.
// not be worth it. Try to use ECH if the terminal
// supports it. Maybe only try to use ECH here.
// //if (this.tput && this.tput.strings.erase_chars)
// if (!clr && neq && (xx - x) > 10) {
// lx = ly = -1;
// if (data !== attr) {
@ -901,37 +903,40 @@ Screen.prototype.draw = function(start, end) {
// out += this.tput
// ? this.tput.cup(y, x)
// : '\x1b[' + (y + 1) + ';' + (x + 1) + 'H';
// out += this.tput
// ? this.tput.el(0)
// : '\x1b[K';
// if (this.tput && this.tput.strings.erase_chars) {
// // Use erase_chars to avoid erasing the whole line.
// out += this.tput
// ? this.tput.ech(xx - x)
// : '\x1b[' + (xx - x) + 'X';
// } else {
// out += this.tput
// ? this.tput.el(0)
// : '\x1b[K';
// }
// out += this.tput
// ? this.tput.cuf(xx - x)
// : '\x1b[' + (xx - x) + 'C';
// clr = xx; // tmp
// for (xx = x; xx < this.cols; xx++) {
// o[xx][0] = data;
// o[xx][1] = ' ';
// }
// x = clr - 1;
// this.fillRegion(data, ' ',
// x, this.tput && this.tput.strings.erase_chars ? xx : this.cols,
// y, y);
// x = xx - 1;
// continue;
// }
// Skip to the next line if the
// rest of the line is already drawn.
// Comment the break in the first
// xx loop above for this to work.
// Which carries less overhead?
// OR use another for loop:
// for (xx = x; xx < this.cols; xx++) {
// if (line[xx][0] !== o[xx][0] || line[xx][1] !== o[xx][1]) {
// neq = true;
// if (!neq) {
// for (; xx < this.cols; xx++) {
// if (line[xx][0] !== o[xx][0] || line[xx][1] !== o[xx][1]) {
// neq = true;
// break;
// }
// }
// if (!neq) {
// attr = data;
// break;
// }
// }
// if (!neq) {
// attr = data;
// break;
// }
}
// Optimize by comparing the real output