ref: b479ec0292521b730c716bd7d07b16514178932a
dir: /paint-colpick/
diff -r eb26bc92b777 sys/src/cmd/paint.c
--- a/sys/src/cmd/paint.c Sun Jan 13 17:17:11 2019 +0100
+++ b/sys/src/cmd/paint.c Sun Jan 20 07:54:13 2019 +0100
@@ -523,9 +523,12 @@
return 1;
}
if(ptinrect(m.xy, palr)){
+ int i, n;
+ char buf[32];
Image *col;
- col = pal[(m.xy.x - palr.min.x) * nelem(pal) / Dx(palr)];
+ i = (m.xy.x - palr.min.x) * nelem(pal) / Dx(palr);
+ col = pal[i];
switch(m.buttons & 7){
case 1:
ink = col;
@@ -536,6 +539,17 @@
drawpal();
update(nil);
break;
+ case 4:
+ buf[0] = 0;
+ if(eenter("Color", buf, sizeof(buf), &m) <= 0)
+ break;
+ n = strtol(buf, nil, 0);
+ freeimage(pal[i]);
+ pal[i] = allocimage(display, Rect(0, 0, 1, 1), RGB24, 1, n << 8 | 0xFF);
+ if(pal[i] == nil)
+ sysfatal("allocimage: %r");
+ drawpal();
+ break;
}
return 1;
}