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-rw-r--r--grid.c41
-rw-r--r--screen.c20
-rw-r--r--tmux.h4
-rw-r--r--window-choose.c2
-rw-r--r--window-clock.c2
-rw-r--r--window-copy.c4
-rw-r--r--window.c8
7 files changed, 71 insertions, 10 deletions
diff --git a/grid.c b/grid.c
index da769122..a8d6d930 100644
--- a/grid.c
+++ b/grid.c
@@ -460,3 +460,44 @@ 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)
+{
+ u_int px, py, line, cell;
+ int previous_wrapped;
+ struct grid_line *gl;
+
+ px = py = 0;
+ previous_wrapped = 1;
+ for (line = 0; line < src->sy + src->hsize; line++) {
+ gl = src->linedata + line;
+ if (!previous_wrapped) {
+ px = 0;
+ py++;
+ if (py >= dst->hsize + dst->sy)
+ grid_scroll_history(dst);
+ }
+ for (cell = 0; cell < gl->cellsize; cell++) {
+ if (px == sx) {
+ dst->linedata[py].flags |= GRID_LINE_WRAPPED;
+ px = 0;
+ py++;
+ if (py >= dst->hsize + dst->sy)
+ grid_scroll_history(dst);
+ }
+ grid_set_cell(dst, px, py, gl->celldata + cell);
+ px++;
+ }
+ previous_wrapped = gl->flags & GRID_LINE_WRAPPED;
+ }
+ py++; /* account for final line, which never wraps */
+
+ if (py > src->sy)
+ return (0);
+ return (src->sy - py);
+}
diff --git a/screen.c b/screen.c
index 7ffe2a24..1c0c0d36 100644
--- a/screen.c
+++ b/screen.c
@@ -120,7 +120,7 @@ screen_set_title(struct screen *s, const char *title)
/* Resize screen. */
void
-screen_resize(struct screen *s, u_int sx, u_int sy)
+screen_resize(struct screen *s, u_int sx, u_int sy, int reflow)
{
if (sx < 1)
sx = 1;
@@ -140,6 +140,9 @@ screen_resize(struct screen *s, u_int sx, u_int sy)
if (sy != screen_size_y(s))
screen_resize_y(s, sy);
+
+ if (reflow)
+ screen_reflow(s, sx);
}
void
@@ -356,3 +359,18 @@ screen_check_selection(struct screen *s, u_int px, u_int py)
return (1);
}
+
+/* Reflow wrapped lines. */
+void
+screen_reflow(struct screen *s, u_int sx)
+{
+ struct grid *old, *new;
+
+ old = s->grid;
+ new = grid_create(old->sx, old->sy, old->hlimit);
+
+ s->cy -= grid_reflow(new, old, sx);
+ s->grid = new;
+
+ grid_destroy(old);
+}
diff --git a/tmux.h b/tmux.h
index 9149f6b5..f6382a70 100644
--- a/tmux.h
+++ b/tmux.h
@@ -1964,6 +1964,7 @@ void grid_move_cells(struct grid *, u_int, u_int, u_int, u_int);
char *grid_string_cells(struct grid *, u_int, u_int, u_int);
void grid_duplicate_lines(
struct grid *, u_int, struct grid *, u_int, u_int);
+u_int grid_reflow(struct grid *, const struct grid *, u_int);
/* grid-cell.c */
u_int grid_cell_width(const struct grid_cell *);
@@ -2057,11 +2058,12 @@ void screen_reset_tabs(struct screen *);
void screen_set_cursor_style(struct screen *, u_int);
void screen_set_cursor_colour(struct screen *, const char *);
void screen_set_title(struct screen *, const char *);
-void screen_resize(struct screen *, u_int, u_int);
+void screen_resize(struct screen *, u_int, u_int, int);
void screen_set_selection(struct screen *,
u_int, u_int, u_int, u_int, u_int, struct grid_cell *);
void screen_clear_selection(struct screen *);
int screen_check_selection(struct screen *, u_int, u_int);
+void screen_reflow(struct screen *, u_int);
/* window.c */
extern struct windows windows;
diff --git a/window-choose.c b/window-choose.c
index 20482a66..dce026ec 100644
--- a/window-choose.c
+++ b/window-choose.c
@@ -203,7 +203,7 @@ window_choose_resize(struct window_pane *wp, u_int sx, u_int sy)
if (data->selected > sy - 1)
data->top = data->selected - (sy - 1);
- screen_resize(s, sx, sy);
+ screen_resize(s, sx, sy, 0);
window_choose_redraw_screen(wp);
}
diff --git a/window-clock.c b/window-clock.c
index b6dc87e9..4cbe76a5 100644
--- a/window-clock.c
+++ b/window-clock.c
@@ -79,7 +79,7 @@ window_clock_resize(struct window_pane *wp, u_int sx, u_int sy)
struct window_clock_mode_data *data = wp->modedata;
struct screen *s = &data->screen;
- screen_resize(s, sx, sy);
+ screen_resize(s, sx, sy, 0);
window_clock_draw_screen(wp);
}
diff --git a/window-copy.c b/window-copy.c
index 79d0c6ed..1d6b8f67 100644
--- a/window-copy.c
+++ b/window-copy.c
@@ -335,9 +335,9 @@ window_copy_resize(struct window_pane *wp, u_int sx, u_int sy)
struct screen *s = &data->screen;
struct screen_write_ctx ctx;
- screen_resize(s, sx, sy);
+ screen_resize(s, sx, sy, 0);
if (data->backing != &wp->base)
- screen_resize(data->backing, sx, sy);
+ screen_resize(data->backing, sx, sy, 0);
if (data->cy > sy - 1)
data->cy = sy - 1;
diff --git a/window.c b/window.c
index 97168455..20cd9aa3 100644
--- a/window.c
+++ b/window.c
@@ -853,7 +853,7 @@ window_pane_resize(struct window_pane *wp, u_int sx, u_int sy)
ws.ws_col = sx;
ws.ws_row = sy;
- screen_resize(&wp->base, sx, sy);
+ screen_resize(&wp->base, sx, sy, wp->saved_grid == NULL);
if (wp->mode != NULL)
wp->mode->resize(wp, sx, sy);
@@ -914,7 +914,7 @@ window_pane_alternate_off(struct window_pane *wp, struct grid_cell *gc,
* before copying back.
*/
if (sy > wp->saved_grid->sy)
- screen_resize(s, sx, wp->saved_grid->sy);
+ screen_resize(s, sx, wp->saved_grid->sy, 1);
/* Restore the grid, cursor position and cell. */
grid_duplicate_lines(s->grid, screen_hsize(s), wp->saved_grid, 0, sy);
@@ -933,8 +933,8 @@ window_pane_alternate_off(struct window_pane *wp, struct grid_cell *gc,
* the current size.
*/
wp->base.grid->flags |= GRID_HISTORY;
- if (sy > wp->saved_grid->sy)
- screen_resize(s, sx, sy);
+ if (sy > wp->saved_grid->sy || sx != wp->saved_grid->sx)
+ screen_resize(s, sx, sy, 1);
grid_destroy(wp->saved_grid);
wp->saved_grid = NULL;