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Rewrite screen-redraw.c to make it tidier and more maintainable. A scene

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is generated and cached in the client: it holds positions and sizes of
panes, borders and so on. The scene is invalidated when a pane is moved
or resized or relevant option is changed. This scene is then drawn to
the client as needed and text and colours are filled in. With Michael
Grant.
This commit is contained in:
nicm
2026-06-22 08:47:45 +00:00
parent e680420c89
commit 95afd7549c
16 changed files with 1836 additions and 1326 deletions
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29
layout.c
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@@ -405,7 +405,8 @@ layout_fix_panes(struct window *w, struct window_pane *skip)
struct window_pane *wp;
struct layout_cell *lc;
int status, scrollbars, sb_pos, sb_w, sb_pad;
u_int sx, sy;
int old_xoff, old_yoff, changed = 0;
u_int sx, sy, old_sx, old_sy;
status = window_get_pane_status(w);
scrollbars = options_get_number(w->options, "pane-scrollbars");
@@ -415,6 +416,11 @@ layout_fix_panes(struct window *w, struct window_pane *skip)
if ((lc = wp->layout_cell) == NULL || wp == skip)
continue;
old_xoff = wp->xoff;
old_yoff = wp->yoff;
old_sx = wp->sx;
old_sy = wp->sy;
wp->xoff = lc->xoff;
wp->yoff = lc->yoff;
sx = lc->sx;
@@ -452,7 +458,15 @@ layout_fix_panes(struct window *w, struct window_pane *skip)
}
window_pane_resize(wp, sx, sy);
if (wp->xoff != old_xoff ||
wp->yoff != old_yoff ||
wp->sx != old_sx ||
wp->sy != old_sy)
changed = 1;
}
if (changed)
redraw_invalidate_scene(w);
}
/* Count the number of available cells in a layout. */
@@ -818,10 +832,16 @@ layout_resize_floating_pane_to(struct window_pane *wp, enum layout_type type,
return;
}
if (type == LAYOUT_TOPBOTTOM)
if (type == LAYOUT_TOPBOTTOM) {
if (lc->sy == size)
return;
lc->sy = size;
else
} else {
if (lc->sx == size)
return;
lc->sx = size;
}
redraw_invalidate_scene(wp->window);
}
/* Resize a floating pane relative to its current size. */
@@ -836,6 +856,8 @@ layout_resize_floating_pane(struct window_pane *wp, enum layout_type type,
*cause = xstrdup("pane is not floating");
return;
}
if (change == 0)
return;
if (type == LAYOUT_TOPBOTTOM) {
size = lc->sy + change;
@@ -856,6 +878,7 @@ layout_resize_floating_pane(struct window_pane *wp, enum layout_type type,
if (opposite)
lc->xoff -= change;
}
redraw_invalidate_scene(wp->window);
}
/* Resize a layout cell. */