Hi
Code looks mostly fine, a few style nits below.
I think we should make this a flag to resize-pane (I suggest -R or -L)
rather than a new command. Could you do that?
Thanks
diff --git a/grid.c b/grid.c
index 71a3679..4f07bf8 100644
--- a/grid.c
+++ b/grid.c
@@ -541,3 +541,58 @@ grid_duplicate_lines(
dy++;
}
}
+
+/*
+ * Reflow lines from src grid into dst grid based on width sx.
+ * Returns number of lines fewer in the visible area, or zero.
+ */
+u_int
+grid_reflow(struct grid *dst, const struct grid *src, u_int sx)
+{
+ GRID_DEBUG(src, "(src) sx=%u", sx);
+ GRID_DEBUG(dst, "(dst)");
I'm not sure we need the GRID_DEBUG now if you are happy it works?
+
+ u_int px = 0;
+ u_int py = 0;
+ u_int prev_line_wrapped = 1;
In any case these declarations need to go before the GRID_DEBUG lines or
it will fail when built with gcc2. Same in several places below.
I'm going to add -Wdeclaration-after-statement to CFLAGS I think...
+
+ for (u_int line = 0; line < src->sy + src->hsize; line++) {
+ GRID_DEBUG(src, "Working line %u", line);
+ struct grid_line *gl = src->linedata + line;
+ if (!prev_line_wrapped) {
+ GRID_DEBUG(src, "(src) Last line didn't wrap.");
+ px = 0;
+ py++;
+ if (py >= dst->hsize + dst->sy) {
+ GRID_DEBUG(dst, "(dst) Having to scroll
(py=%u).", py);
+ grid_scroll_history(dst);
+ }
+ }
+ for (u_int cell = 0; cell < gl->cellsize; cell++) {
+ if (px == sx) {
+ GRID_DEBUG(src, "(src) Width %u exceeded,
wrapping.", sx);
+ dst->linedata[py].flags |= GRID_LINE_WRAPPED;
+ px = 0;
+ py++;
+ if (py >= dst->hsize + dst->sy) {
+ GRID_DEBUG(dst, "(dst) Having to scroll
(py=%u).", py);
+ grid_scroll_history(dst);
+ }
+ }
+ grid_set_cell(dst, px, py, gl->celldata + cell);
+ if (gl->celldata[cell].flags & GRID_FLAG_UTF8) {
+ grid_set_utf8(dst, px, py, gl->utf8data + cell);
+ }
+ px++;
+ }
+ prev_line_wrapped = gl->flags & GRID_LINE_WRAPPED;
+ }
+
+ /* Account for final line, which never wraps. */
+ py++;
+
+ if (py > src->sy)
+ return 0;
+ else
+ return src->sy - py;
+}
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