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Change inserting and deleting lines inside the scroll region to properly clear

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lines that should be inserted/deleted but not moved. Fixes problems with mutt
reported by Brian Lewis, thanks.
This commit is contained in:
Nicholas Marriott
2009-07-09 18:04:53 +00:00
parent e073441c36
commit 295879cced
2 changed files with 46 additions and 10 deletions
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16
grid-view.c
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@ -1,4 +1,4 @@
/* $Id: grid-view.c,v 1.16 2009-07-09 18:04:17 nicm Exp $ */
/* $Id: grid-view.c,v 1.17 2009-07-09 18:04:53 nicm Exp $ */
/*
* Copyright (c) 2008 Nicholas Marriott <nicm@users.sourceforge.net>
@ -134,13 +134,17 @@ grid_view_insert_lines(struct grid *gd, u_int py, u_int ny)
void
grid_view_insert_lines_region(struct grid *gd, u_int rlower, u_int py, u_int ny)
{
u_int ny2;
GRID_DEBUG(gd, "rlower=%u, py=%u, ny=%u", rlower, py, ny);
rlower = grid_view_y(gd, rlower);
py = grid_view_y(gd, py);
grid_move_lines(gd, py + ny, py, (rlower + 1) - py - ny);
ny2 = rlower + 1 - py - ny;
grid_move_lines(gd, rlower + 1 - ny2, py, ny2);
grid_clear(gd, 0, py + ny2, gd->sx, ny - ny2);
}
/* Delete lines. */
@ -156,20 +160,24 @@ grid_view_delete_lines(struct grid *gd, u_int py, u_int ny)
sy = grid_view_y(gd, gd->sy);
grid_move_lines(gd, py, py + ny, sy - py - ny);
grid_clear(gd, 0, sy - ny, gd->sx, py + ny - (sy - ny));
grid_clear(gd, 0, sy - ny, gd->sx, py + ny - (sy - ny));
}
/* Delete lines inside scroll region. */
void
grid_view_delete_lines_region(struct grid *gd, u_int rlower, u_int py, u_int ny)
{
u_int ny2;
GRID_DEBUG(gd, "rlower=%u, py=%u, ny=%u", rlower, py, ny);
rlower = grid_view_y(gd, rlower);
py = grid_view_y(gd, py);
grid_move_lines(gd, py, py + ny, (rlower + 1) - py - ny);
ny2 = rlower + 1 - py - ny;
grid_move_lines(gd, py, py + ny, ny2);
grid_clear(gd, 0, py + ny2, gd->sx, ny - ny2);
}
/* Insert characters. */