shithub: orca

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plan9: less flickering

--- a/plan9.c

+++ b/plan9.c

@@ -304,17 +304,30 @@

 static void

 redraw(void)

 {

+	Rectangle r;

 	Point p, top, bot;

 	int x, y, len, rx, ry, i;

 	int oldbg, oldfg, bg, fg, attr, selected;

 	Rune c;

-	draw(screen, screen->r, color[Dback], nil, ZP);

 	p = addpt(screen->r.min, Pt(Txtoff, Txtoff));

 	top = p;

 	bot.x = top.x;

 	bot.y = screen->r.max.y - Txtoff - charh*2;

+	r = screen->r;

+	r.max.y = r.min.y + Txtoff;

+	draw(screen, r, color[Dback], nil, ZP);

+	r = screen->r;

+	r.max.x = r.min.x + Txtoff;

+	draw(screen, r, color[Dback], nil, ZP);

+	r = screen->r;

+	r.min.x += MIN(field.width*charw, Dx(r)-Txtoff) + Txtoff;

+	draw(screen, r, color[Dback], nil, ZP);

+	r = screen->r;

+	r.min.y = MIN(top.y + field.height*charh, bot.y-charh);

+	draw(screen, r, color[Dback], nil, ZP);

+

 	bg = -1;

 	fg = -1;

 	for (y = 0; y < field.height && p.y < bot.y-charh; y++) {

@@ -751,7 +764,6 @@

 		case Cresize:

 			getwindow(display, Refnone);

-			linebuf = realloc(linebuf, sizeof(Rune)*Dx(screen->r)/charw);

 			break;

 		case Ckey: