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/* $OpenBSD: grid-view.c,v 1.1 2009/06/01 22:58:49 nicm Exp $ */
/*
* Copyright (c) 2008 Nicholas Marriott <nicm@users.sourceforge.net>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include <string.h>
#include "tmux.h"
/*
* Grid view functions. These work using coordinates relative to the visible
* screen area.
*/
#define grid_view_x(gd, x) (x)
#define grid_view_y(gd, y) ((gd)->hsize + (y))
/* Get cell for reading. */
const struct grid_cell *
grid_view_peek_cell(struct grid *gd, u_int px, u_int py)
{
return (grid_peek_cell(gd, grid_view_x(gd, px), grid_view_y(gd, py)));
}
/* Get cell for writing. */
struct grid_cell *
grid_view_get_cell(struct grid *gd, u_int px, u_int py)
{
return (grid_get_cell(gd, grid_view_x(gd, px), grid_view_y(gd, py)));
}
/* Set cell. */
void
grid_view_set_cell(
struct grid *gd, u_int px, u_int py, const struct grid_cell *gc)
{
grid_set_cell(gd, grid_view_x(gd, px), grid_view_y(gd, py), gc);
}
/* Get UTF-8 for reading. */
const struct grid_utf8 *
grid_view_peek_utf8(struct grid *gd, u_int px, u_int py)
{
return (grid_peek_utf8(gd, grid_view_x(gd, px), grid_view_y(gd, py)));
}
/* Get UTF-8 for writing. */
struct grid_utf8 *
grid_view_get_utf8(struct grid *gd, u_int px, u_int py)
{
return (grid_get_utf8(gd, grid_view_x(gd, px), grid_view_y(gd, py)));
}
/* Set UTF-8. */
void
grid_view_set_utf8(
struct grid *gd, u_int px, u_int py, const struct grid_utf8 *gu)
{
grid_set_utf8(gd, grid_view_x(gd, px), grid_view_y(gd, py), gu);
}
/* Clear area. */
void
grid_view_clear(struct grid *gd, u_int px, u_int py, u_int nx, u_int ny)
{
GRID_DEBUG(gd, "px=%u, py=%u, nx=%u, ny=%u", px, py, nx, ny);
px = grid_view_x(gd, px);
py = grid_view_y(gd, py);
grid_clear(gd, px, py, nx, ny);
}
/* Scroll region up. */
void
grid_view_scroll_region_up(struct grid *gd, u_int rupper, u_int rlower)
{
GRID_DEBUG(gd, "rupper=%u, rlower=%u", rupper, rlower);
if (rupper == 0 && rlower == gd->sy - 1) {
grid_scroll_line(gd);
return;
}
rupper = grid_view_y(gd, rupper);
rlower = grid_view_y(gd, rlower);
grid_move_lines(gd, rupper, rupper + 1, rlower - rupper);
}
/* Scroll region down. */
void
grid_view_scroll_region_down(struct grid *gd, u_int rupper, u_int rlower)
{
GRID_DEBUG(gd, "rupper=%u, rlower=%u", rupper, rlower);
rupper = grid_view_y(gd, rupper);
rlower = grid_view_y(gd, rlower);
grid_move_lines(gd, rupper + 1, rupper, rlower - rupper);
}
/* Insert lines. */
void
grid_view_insert_lines(struct grid *gd, u_int py, u_int ny)
{
u_int sy;
GRID_DEBUG(gd, "py=%u, ny=%u", py, ny);
py = grid_view_y(gd, py);
sy = grid_view_y(gd, gd->sy);
grid_move_lines(gd, py + ny, py, sy - py - ny);
}
/* Insert lines in region. */
void
grid_view_insert_lines_region(
struct grid *gd, unused u_int rupper, u_int rlower, u_int py, u_int ny)
{
GRID_DEBUG(
gd, "rupper=%u, rlower=%u, py=%u, ny=%u", rupper, 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);
}
/* Delete lines. */
void
grid_view_delete_lines(struct grid *gd, u_int py, u_int ny)
{
u_int sy;
GRID_DEBUG(gd, "py=%u, ny=%u", py, ny);
py = grid_view_y(gd, py);
sy = grid_view_y(gd, gd->sy);
grid_move_lines(gd, py, py + ny, sy - py - ny);
}
/* Delete lines inside scroll region. */
void
grid_view_delete_lines_region(
struct grid *gd, unused u_int rupper, u_int rlower, u_int py, u_int ny)
{
GRID_DEBUG(
gd, "rupper=%u, rlower=%u, py=%u, ny=%u", rupper, 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);
}
/* Insert characters. */
void
grid_view_insert_cells(struct grid *gd, u_int px, u_int py, u_int nx)
{
u_int sx;
GRID_DEBUG(gd, "px=%u, py=%u, nx=%u", px, py, nx);
px = grid_view_x(gd, px);
py = grid_view_y(gd, py);
sx = grid_view_x(gd, gd->sx);
if (px == sx - 1)
grid_clear(gd, px, py, 1, 1);
else
grid_move_cells(gd, px + nx, px, py, (sx - 1) - (px + nx));
}
/* Delete characters. */
void
grid_view_delete_cells(struct grid *gd, u_int px, u_int py, u_int nx)
{
u_int sx;
GRID_DEBUG(gd, "px=%u, py=%u, nx=%u", px, py, nx);
px = grid_view_x(gd, px);
py = grid_view_y(gd, py);
sx = grid_view_x(gd, gd->sx);
grid_move_cells(gd, px, px + nx, py, (sx - 1) - (px + nx));
}
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