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Major reorganisation of screen handling.

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This commit is contained in:
Nicholas Marriott
2007-12-06 09:46:23 +00:00
parent 6f142e9ac6
commit 103748d6ad
52 changed files with 2084 additions and 1538 deletions
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191
screen-display.c
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@ -1,4 +1,4 @@
/* $Id: screen-display.c,v 1.9 2007-11-26 22:22:18 nicm Exp $ */
/* $Id: screen-display.c,v 1.10 2007-12-06 09:46:22 nicm Exp $ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@ -22,17 +22,20 @@
#include "tmux.h"
/*
* Screen display modification functions. These alter the displayed portion
* of the screen.
*/
/* Set a cell. */
void
screen_display_set_cell(
struct screen *s, u_int px, u_int py, u_char data, u_char attr, u_char colr)
{
screen_set_cell(s, screen_x(s, px), screen_y(s, py), data, attr, colr);
}
/* Create a region of lines. */
void
screen_display_make_lines(struct screen *s, u_int py, u_int ny)
{
if (ny == 0 || !screen_in_y(s, py) || !screen_in_y(s, py + ny - 1))
fatalx("bad value");
return;
screen_make_lines(s, screen_y(s, py), ny);
}
@ -41,7 +44,7 @@ void
screen_display_free_lines(struct screen *s, u_int py, u_int ny)
{
if (ny == 0 || !screen_in_y(s, py) || !screen_in_y(s, py + ny - 1))
fatalx("bad value");
return;
screen_free_lines(s, screen_y(s, py), ny);
}
@ -50,116 +53,25 @@ void
screen_display_move_lines(struct screen *s, u_int dy, u_int py, u_int ny)
{
if (ny == 0 || !screen_in_y(s, py) || !screen_in_y(s, py + ny - 1))
fatalx("bad value");
return;
if (!screen_in_y(s, dy) || !screen_in_y(s, dy + ny - 1) || dy == py)
fatalx("bad value");
return;
screen_move_lines(s, screen_y(s, dy), screen_y(s, py), ny);
}
/* Fill a set of lines. */
/* Fill a set of cells. */
void
screen_display_fill_lines(
struct screen *s, u_int py, u_int ny, u_char data, u_char attr, u_char colr)
screen_display_fill_area(struct screen *s, u_int px, u_int py,
u_int nx, u_int ny, u_char data, u_char attr, u_char colr)
{
if (ny == 0 || !screen_in_y(s, py) || !screen_in_y(s, py + ny - 1))
fatalx("bad value");
screen_fill_lines(s, screen_y(s, py), ny, data, attr, colr);
}
/* Fill a set of cellss. */
void
screen_display_fill_cells(struct screen *s,
u_int px, u_int py, u_int nx, u_char data, u_char attr, u_char colr)
{
if (nx == 0 || !screen_in_x(s, px) || !screen_in_y(s, py))
fatalx("bad value");
screen_fill_cells(
s, screen_x(s, px), screen_y(s, py), nx, data, attr, colr);
}
/* Fill entire screen. */
void
screen_display_fill_screen(
struct screen *s, u_char data, u_char attr, u_char colr)
{
screen_display_fill_lines(s, 0, screen_size_y(s), data, attr, colr);
}
/* Fill end of screen from cursor. */
void
screen_display_fill_cursor_eos(
struct screen *s, u_char data, u_char attr, u_char colr)
{
screen_display_fill_cursor_eol(s, data, attr, colr);
if (s->cy != screen_last_y(s)) {
screen_display_fill_lines(
s, s->cy, screen_size_y(s) - s->cy, data, attr, colr);
}
}
/* Fill beginning of screen from cursor. */
void
screen_display_fill_cursor_bos(
struct screen *s, u_char data, u_char attr, u_char colr)
{
screen_display_fill_lines(s, 0, s->cy, data, attr, colr);
}
/* Fill a single line. */
void
screen_display_fill_line(
struct screen *s, u_int py, u_char data, u_char attr, u_char colr)
{
screen_display_fill_lines(s, py, 1, data, attr, colr);
}
/* Fill cursor to beginning of line. */
void
screen_display_fill_cursor_bol(
struct screen *s, u_char data, u_char attr, u_char colr)
{
screen_display_fill_cells(s, 0, s->cy, s->cx, data, attr, colr);
}
/* Fill cursor to end of line. */
void
screen_display_fill_cursor_eol(
struct screen *s, u_char data, u_char attr, u_char colr)
{
screen_display_fill_cells(
s, s->cx, s->cy, screen_size_x(s) - s->cx, data, attr, colr);
}
/* Set character at cursor. */
void
screen_display_cursor_set(struct screen *s, u_char ch)
{
u_int px, py;
px = screen_x(s, s->cx);
py = screen_y(s, s->cy);
screen_set_cell(s, px, py, ch, s->attr, s->colr);
}
/* Move cursor up and scroll if necessary. */
void
screen_display_cursor_up(struct screen *s)
{
if (s->cy == s->rupper)
screen_display_scroll_region_down(s);
else if (s->cy > 0)
s->cy--;
}
/* Move cursor down and scroll if necessary. */
void
screen_display_cursor_down(struct screen *s)
{
if (s->cy == s->rlower)
screen_display_scroll_region_up(s);
else if (s->cy < screen_last_y(s))
s->cy++;
if (nx == 0 || ny == 0)
return;
if (!screen_in_x(s, px) || !screen_in_y(s, py))
return;
if (!screen_in_x(s, px + nx - 1) || !screen_in_y(s, py - ny - 1))
return;
screen_fill_area(
s, screen_x(s, px), screen_y(s, py), nx, ny, data, attr, colr);
}
/* Scroll region up. */
@ -167,13 +79,13 @@ void
screen_display_scroll_region_up(struct screen *s)
{
u_int ny, sy;
/*
* If the region is the entire screen, this is easy-peasy. Allocate
* a new line and adjust the history size.
* XXX should this be done somewhere else?
*/
if (s->rupper == 0 && s->rlower == screen_last_y(s)) {
if (s->rupper == 0 && s->rlower == screen_last_y(s)) {
if (s->hsize == s->hlimit) {
/* If the limit is hit, free 10% and shift up. */
ny = s->hlimit / 10;
@ -197,7 +109,7 @@ screen_display_scroll_region_up(struct screen *s)
return;
}
/*
/*
* Scroll scrolling region up:
* - delete rupper
* - move rupper + 1 to rlower to rupper
@ -213,7 +125,7 @@ screen_display_scroll_region_up(struct screen *s)
screen_display_free_lines(s, s->rupper, 1);
if (s->rupper != s->rlower) {
screen_display_move_lines(s,
screen_display_move_lines(s,
s->rupper, s->rupper + 1, s->rlower - s->rupper);
}
@ -224,7 +136,7 @@ screen_display_scroll_region_up(struct screen *s)
void
screen_display_scroll_region_down(struct screen *s)
{
/*
/*
* Scroll scrolling region down:
* - delete rlower
* - move rupper to rlower - 1 to rupper + 1
@ -252,14 +164,14 @@ void
screen_display_insert_lines(struct screen *s, u_int py, u_int ny)
{
if (!screen_in_y(s, py))
fatalx("bad value");
return;
if (ny == 0)
fatalx("bad value");
return;
if (py + ny > screen_last_y(s))
ny = screen_size_y(s) - py;
if (ny == 0)
return;
return;
/*
* Insert range of ny lines at py:
@ -289,9 +201,9 @@ void
screen_display_insert_lines_region(struct screen *s, u_int py, u_int ny)
{
if (!screen_in_region(s, py))
fatalx("bad value");
return;
if (ny == 0)
fatalx("bad value");
return;
if (py + ny > s->rlower)
ny = (s->rlower + 1) - py;
@ -326,9 +238,9 @@ void
screen_display_delete_lines(struct screen *s, u_int py, u_int ny)
{
if (!screen_in_y(s, py))
fatalx("bad value");
return;
if (ny == 0)
fatalx("bad value");
return;
if (py + ny > screen_last_y(s))
ny = screen_size_y(s) - py;
@ -363,9 +275,9 @@ void
screen_display_delete_lines_region(struct screen *s, u_int py, u_int ny)
{
if (!screen_in_region(s, py))
fatalx("bad value");
return;
if (ny == 0)
fatalx("bad value");
return;
if (py + ny > s->rlower)
ny = (s->rlower + 1) - py;
@ -402,7 +314,7 @@ screen_display_insert_characters(struct screen *s, u_int px, u_int py, u_int nx)
u_int mx;
if (!screen_in_x(s, px) || !screen_in_y(s, py))
fatalx("bad value");
return;
if (px + nx > screen_last_x(s))
nx = screen_last_x(s) - px;
@ -439,7 +351,7 @@ screen_display_delete_characters(struct screen *s, u_int px, u_int py, u_int nx)
u_int mx;
if (!screen_in_x(s, px) || !screen_in_y(s, py))
fatalx("bad value");
return;
if (px + nx > screen_last_x(s))
nx = screen_last_x(s) - px;
@ -468,3 +380,28 @@ screen_display_delete_characters(struct screen *s, u_int px, u_int py, u_int nx)
memset(&s->grid_attr[py][screen_size_x(s) - nx], SCREEN_DEFATTR, nx);
memset(&s->grid_colr[py][screen_size_x(s) - nx], SCREEN_DEFCOLR, nx);
}
/* Fill cells from another screen, with an offset. */
void
screen_display_copy_area(struct screen *dst, struct screen *src,
u_int px, u_int py, u_int nx, u_int ny, u_int ox, u_int oy)
{
u_int i, j;
u_char data, attr, colr;
if (nx == 0 || ny == 0)
return;
if (!screen_in_x(dst, px) || !screen_in_y(dst, py))
return;
if (!screen_in_x(dst, px + nx - 1) || !screen_in_y(dst, py + ny - 1))
return;
for (i = py; i < py + ny; i++) {
for (j = px; j < px + nx; j++) {
screen_get_cell(src,
screen_x(src, j) + ox, screen_y(src, i) - oy,
&data, &attr, &colr);
screen_display_set_cell(dst, j, i, data, attr, colr);
}
}
}