/* $Id: grid-view.c,v 1.1.1.2 2011/08/17 18:40:04 jmmv Exp $ */ /* * Copyright (c) 2008 Nicholas Marriott * * 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 #include #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 into history. */ void grid_view_clear_history(struct grid *gd) { struct grid_line *gl; u_int yy, last; GRID_DEBUG(gd, ""); /* Find the last used line. */ last = 0; for (yy = 0; yy < gd->sy; yy++) { gl = &gd->linedata[grid_view_y(gd, yy)]; if (gl->cellsize != 0 || gl->utf8size != 0) last = yy + 1; } if (last == 0) return; /* Scroll the lines into the history. */ for (yy = 0; yy < last; yy++) grid_scroll_history(gd); } /* 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 (gd->flags & GRID_HISTORY) { grid_collect_history(gd); if (rupper == 0 && rlower == gd->sy - 1) grid_scroll_history(gd); else { rupper = grid_view_y(gd, rupper); rlower = grid_view_y(gd, rlower); grid_scroll_history_region(gd, rupper, rlower); } } else { 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, 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); 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. */ 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); 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); 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. */ 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 - 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 - px - nx); grid_clear(gd, sx - nx, py, px + nx - (sx - nx), 1); } /* Convert cells into a string. */ char * grid_view_string_cells(struct grid *gd, u_int px, u_int py, u_int nx) { GRID_DEBUG(gd, "px=%u, py=%u, nx=%u", px, py, nx); px = grid_view_x(gd, px); py = grid_view_y(gd, py); return (grid_string_cells(gd, px, py, nx)); }