forked from martanne/vis
/
ui-curses.c
1232 lines (1122 loc) · 39 KB
/
ui-curses.c
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/* parts of the color handling code originates from tmux/colour.c and is
* Copyright (c) 2008 Nicholas Marriott <nicm@users.sourceforge.net>
*/
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <limits.h>
#include <ctype.h>
#include <signal.h>
#include <locale.h>
#include <poll.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <termios.h>
#include "ui-curses.h"
#include "vis.h"
#include "vis-core.h"
#include "text.h"
#include "util.h"
#include "text-util.h"
#ifdef NCURSES_VERSION
# ifndef NCURSES_EXT_COLORS
# define NCURSES_EXT_COLORS 0
# endif
# if !NCURSES_EXT_COLORS
# define MAX_COLOR_PAIRS 256
# endif
#endif
#ifndef MAX_COLOR_PAIRS
# define MAX_COLOR_PAIRS COLOR_PAIRS
#endif
#ifdef PDCURSES
int ESCDELAY;
#endif
#ifndef NCURSES_REENTRANT
# define set_escdelay(d) (ESCDELAY = (d))
#endif
#define CONTROL(k) ((k)&0x1F)
#if 0
#define wresize(win, y, x) do { \
if (wresize(win, y, x) == ERR) { \
printf("ERROR resizing: %d x %d\n", x, y); \
} else { \
printf("OK resizing: %d x %d\n", x, y); \
} \
fflush(stdout); \
} while (0);
#define mvwin(win, y, x) do { \
if (mvwin(win, y, x) == ERR) { \
printf("ERROR moving: %d x %d\n", x, y); \
} else { \
printf("OK moving: %d x %d\n", x, y); \
} \
fflush(stdout); \
} while (0);
#endif
typedef struct {
attr_t attr;
short fg, bg;
} CellStyle;
typedef struct UiCursesWin UiCursesWin;
typedef struct {
Ui ui; /* generic ui interface, has to be the first struct member */
Vis *vis; /* editor instance to which this ui belongs */
UiCursesWin *windows; /* all windows managed by this ui */
UiCursesWin *selwin; /* the currently selected layout */
char info[255]; /* info message displayed at the bottom of the screen */
int width, height; /* terminal dimensions available for all windows */
enum UiLayout layout; /* whether windows are displayed horizontally or vertically */
TermKey *termkey; /* libtermkey instance to handle keyboard input (stdin or /dev/tty) */
struct termios tio; /* terminal state to restore before exiting */
char key[64]; /* string representation of last pressed key */
} UiCurses;
struct UiCursesWin {
UiWin uiwin; /* generic interface, has to be the first struct member */
UiCurses *ui; /* ui which manages this window */
File *file; /* file being displayed in this window */
View *view; /* current viewport */
WINDOW *win; /* curses window for the text area */
WINDOW *winstatus; /* curses window for the status bar */
WINDOW *winside; /* curses window for the side bar (line numbers) */
int width, height; /* window dimension including status bar */
int x, y; /* window position */
int sidebar_width; /* width of the sidebar showing line numbers etc. */
UiCursesWin *next, *prev; /* pointers to neighbouring windows */
enum UiOption options; /* display settings for this window */
CellStyle styles[UI_STYLE_MAX];
};
static volatile sig_atomic_t need_resize; /* TODO */
static void sigwinch_handler(int sig) {
need_resize = true;
}
typedef struct {
unsigned char i;
unsigned char r;
unsigned char g;
unsigned char b;
} Color;
static int color_compare(const void *lhs0, const void *rhs0) {
const Color *lhs = lhs0, *rhs = rhs0;
if (lhs->r < rhs->r)
return -1;
if (lhs->r > rhs->r)
return 1;
if (lhs->g < rhs->g)
return -1;
if (lhs->g > rhs->g)
return 1;
if (lhs->b < rhs->b)
return -1;
if (lhs->b > rhs->b)
return 1;
return 0;
}
/* Work out the nearest color from the 256 color set. */
static int color_find_rgb(unsigned char r, unsigned char g, unsigned char b)
{
static const Color color_from_256[] = {
{ 0, 0x00, 0x00, 0x00 }, { 1, 0x00, 0x00, 0x5f },
{ 2, 0x00, 0x00, 0x87 }, { 3, 0x00, 0x00, 0xaf },
{ 4, 0x00, 0x00, 0xd7 }, { 5, 0x00, 0x00, 0xff },
{ 6, 0x00, 0x5f, 0x00 }, { 7, 0x00, 0x5f, 0x5f },
{ 8, 0x00, 0x5f, 0x87 }, { 9, 0x00, 0x5f, 0xaf },
{ 10, 0x00, 0x5f, 0xd7 }, { 11, 0x00, 0x5f, 0xff },
{ 12, 0x00, 0x87, 0x00 }, { 13, 0x00, 0x87, 0x5f },
{ 14, 0x00, 0x87, 0x87 }, { 15, 0x00, 0x87, 0xaf },
{ 16, 0x00, 0x87, 0xd7 }, { 17, 0x00, 0x87, 0xff },
{ 18, 0x00, 0xaf, 0x00 }, { 19, 0x00, 0xaf, 0x5f },
{ 20, 0x00, 0xaf, 0x87 }, { 21, 0x00, 0xaf, 0xaf },
{ 22, 0x00, 0xaf, 0xd7 }, { 23, 0x00, 0xaf, 0xff },
{ 24, 0x00, 0xd7, 0x00 }, { 25, 0x00, 0xd7, 0x5f },
{ 26, 0x00, 0xd7, 0x87 }, { 27, 0x00, 0xd7, 0xaf },
{ 28, 0x00, 0xd7, 0xd7 }, { 29, 0x00, 0xd7, 0xff },
{ 30, 0x00, 0xff, 0x00 }, { 31, 0x00, 0xff, 0x5f },
{ 32, 0x00, 0xff, 0x87 }, { 33, 0x00, 0xff, 0xaf },
{ 34, 0x00, 0xff, 0xd7 }, { 35, 0x00, 0xff, 0xff },
{ 36, 0x5f, 0x00, 0x00 }, { 37, 0x5f, 0x00, 0x5f },
{ 38, 0x5f, 0x00, 0x87 }, { 39, 0x5f, 0x00, 0xaf },
{ 40, 0x5f, 0x00, 0xd7 }, { 41, 0x5f, 0x00, 0xff },
{ 42, 0x5f, 0x5f, 0x00 }, { 43, 0x5f, 0x5f, 0x5f },
{ 44, 0x5f, 0x5f, 0x87 }, { 45, 0x5f, 0x5f, 0xaf },
{ 46, 0x5f, 0x5f, 0xd7 }, { 47, 0x5f, 0x5f, 0xff },
{ 48, 0x5f, 0x87, 0x00 }, { 49, 0x5f, 0x87, 0x5f },
{ 50, 0x5f, 0x87, 0x87 }, { 51, 0x5f, 0x87, 0xaf },
{ 52, 0x5f, 0x87, 0xd7 }, { 53, 0x5f, 0x87, 0xff },
{ 54, 0x5f, 0xaf, 0x00 }, { 55, 0x5f, 0xaf, 0x5f },
{ 56, 0x5f, 0xaf, 0x87 }, { 57, 0x5f, 0xaf, 0xaf },
{ 58, 0x5f, 0xaf, 0xd7 }, { 59, 0x5f, 0xaf, 0xff },
{ 60, 0x5f, 0xd7, 0x00 }, { 61, 0x5f, 0xd7, 0x5f },
{ 62, 0x5f, 0xd7, 0x87 }, { 63, 0x5f, 0xd7, 0xaf },
{ 64, 0x5f, 0xd7, 0xd7 }, { 65, 0x5f, 0xd7, 0xff },
{ 66, 0x5f, 0xff, 0x00 }, { 67, 0x5f, 0xff, 0x5f },
{ 68, 0x5f, 0xff, 0x87 }, { 69, 0x5f, 0xff, 0xaf },
{ 70, 0x5f, 0xff, 0xd7 }, { 71, 0x5f, 0xff, 0xff },
{ 72, 0x87, 0x00, 0x00 }, { 73, 0x87, 0x00, 0x5f },
{ 74, 0x87, 0x00, 0x87 }, { 75, 0x87, 0x00, 0xaf },
{ 76, 0x87, 0x00, 0xd7 }, { 77, 0x87, 0x00, 0xff },
{ 78, 0x87, 0x5f, 0x00 }, { 79, 0x87, 0x5f, 0x5f },
{ 80, 0x87, 0x5f, 0x87 }, { 81, 0x87, 0x5f, 0xaf },
{ 82, 0x87, 0x5f, 0xd7 }, { 83, 0x87, 0x5f, 0xff },
{ 84, 0x87, 0x87, 0x00 }, { 85, 0x87, 0x87, 0x5f },
{ 86, 0x87, 0x87, 0x87 }, { 87, 0x87, 0x87, 0xaf },
{ 88, 0x87, 0x87, 0xd7 }, { 89, 0x87, 0x87, 0xff },
{ 90, 0x87, 0xaf, 0x00 }, { 91, 0x87, 0xaf, 0x5f },
{ 92, 0x87, 0xaf, 0x87 }, { 93, 0x87, 0xaf, 0xaf },
{ 94, 0x87, 0xaf, 0xd7 }, { 95, 0x87, 0xaf, 0xff },
{ 96, 0x87, 0xd7, 0x00 }, { 97, 0x87, 0xd7, 0x5f },
{ 98, 0x87, 0xd7, 0x87 }, { 99, 0x87, 0xd7, 0xaf },
{ 100, 0x87, 0xd7, 0xd7 }, { 101, 0x87, 0xd7, 0xff },
{ 102, 0x87, 0xff, 0x00 }, { 103, 0x87, 0xff, 0x5f },
{ 104, 0x87, 0xff, 0x87 }, { 105, 0x87, 0xff, 0xaf },
{ 106, 0x87, 0xff, 0xd7 }, { 107, 0x87, 0xff, 0xff },
{ 108, 0xaf, 0x00, 0x00 }, { 109, 0xaf, 0x00, 0x5f },
{ 110, 0xaf, 0x00, 0x87 }, { 111, 0xaf, 0x00, 0xaf },
{ 112, 0xaf, 0x00, 0xd7 }, { 113, 0xaf, 0x00, 0xff },
{ 114, 0xaf, 0x5f, 0x00 }, { 115, 0xaf, 0x5f, 0x5f },
{ 116, 0xaf, 0x5f, 0x87 }, { 117, 0xaf, 0x5f, 0xaf },
{ 118, 0xaf, 0x5f, 0xd7 }, { 119, 0xaf, 0x5f, 0xff },
{ 120, 0xaf, 0x87, 0x00 }, { 121, 0xaf, 0x87, 0x5f },
{ 122, 0xaf, 0x87, 0x87 }, { 123, 0xaf, 0x87, 0xaf },
{ 124, 0xaf, 0x87, 0xd7 }, { 125, 0xaf, 0x87, 0xff },
{ 126, 0xaf, 0xaf, 0x00 }, { 127, 0xaf, 0xaf, 0x5f },
{ 128, 0xaf, 0xaf, 0x87 }, { 129, 0xaf, 0xaf, 0xaf },
{ 130, 0xaf, 0xaf, 0xd7 }, { 131, 0xaf, 0xaf, 0xff },
{ 132, 0xaf, 0xd7, 0x00 }, { 133, 0xaf, 0xd7, 0x5f },
{ 134, 0xaf, 0xd7, 0x87 }, { 135, 0xaf, 0xd7, 0xaf },
{ 136, 0xaf, 0xd7, 0xd7 }, { 137, 0xaf, 0xd7, 0xff },
{ 138, 0xaf, 0xff, 0x00 }, { 139, 0xaf, 0xff, 0x5f },
{ 140, 0xaf, 0xff, 0x87 }, { 141, 0xaf, 0xff, 0xaf },
{ 142, 0xaf, 0xff, 0xd7 }, { 143, 0xaf, 0xff, 0xff },
{ 144, 0xd7, 0x00, 0x00 }, { 145, 0xd7, 0x00, 0x5f },
{ 146, 0xd7, 0x00, 0x87 }, { 147, 0xd7, 0x00, 0xaf },
{ 148, 0xd7, 0x00, 0xd7 }, { 149, 0xd7, 0x00, 0xff },
{ 150, 0xd7, 0x5f, 0x00 }, { 151, 0xd7, 0x5f, 0x5f },
{ 152, 0xd7, 0x5f, 0x87 }, { 153, 0xd7, 0x5f, 0xaf },
{ 154, 0xd7, 0x5f, 0xd7 }, { 155, 0xd7, 0x5f, 0xff },
{ 156, 0xd7, 0x87, 0x00 }, { 157, 0xd7, 0x87, 0x5f },
{ 158, 0xd7, 0x87, 0x87 }, { 159, 0xd7, 0x87, 0xaf },
{ 160, 0xd7, 0x87, 0xd7 }, { 161, 0xd7, 0x87, 0xff },
{ 162, 0xd7, 0xaf, 0x00 }, { 163, 0xd7, 0xaf, 0x5f },
{ 164, 0xd7, 0xaf, 0x87 }, { 165, 0xd7, 0xaf, 0xaf },
{ 166, 0xd7, 0xaf, 0xd7 }, { 167, 0xd7, 0xaf, 0xff },
{ 168, 0xd7, 0xd7, 0x00 }, { 169, 0xd7, 0xd7, 0x5f },
{ 170, 0xd7, 0xd7, 0x87 }, { 171, 0xd7, 0xd7, 0xaf },
{ 172, 0xd7, 0xd7, 0xd7 }, { 173, 0xd7, 0xd7, 0xff },
{ 174, 0xd7, 0xff, 0x00 }, { 175, 0xd7, 0xff, 0x5f },
{ 176, 0xd7, 0xff, 0x87 }, { 177, 0xd7, 0xff, 0xaf },
{ 178, 0xd7, 0xff, 0xd7 }, { 179, 0xd7, 0xff, 0xff },
{ 180, 0xff, 0x00, 0x00 }, { 181, 0xff, 0x00, 0x5f },
{ 182, 0xff, 0x00, 0x87 }, { 183, 0xff, 0x00, 0xaf },
{ 184, 0xff, 0x00, 0xd7 }, { 185, 0xff, 0x00, 0xff },
{ 186, 0xff, 0x5f, 0x00 }, { 187, 0xff, 0x5f, 0x5f },
{ 188, 0xff, 0x5f, 0x87 }, { 189, 0xff, 0x5f, 0xaf },
{ 190, 0xff, 0x5f, 0xd7 }, { 191, 0xff, 0x5f, 0xff },
{ 192, 0xff, 0x87, 0x00 }, { 193, 0xff, 0x87, 0x5f },
{ 194, 0xff, 0x87, 0x87 }, { 195, 0xff, 0x87, 0xaf },
{ 196, 0xff, 0x87, 0xd7 }, { 197, 0xff, 0x87, 0xff },
{ 198, 0xff, 0xaf, 0x00 }, { 199, 0xff, 0xaf, 0x5f },
{ 200, 0xff, 0xaf, 0x87 }, { 201, 0xff, 0xaf, 0xaf },
{ 202, 0xff, 0xaf, 0xd7 }, { 203, 0xff, 0xaf, 0xff },
{ 204, 0xff, 0xd7, 0x00 }, { 205, 0xff, 0xd7, 0x5f },
{ 206, 0xff, 0xd7, 0x87 }, { 207, 0xff, 0xd7, 0xaf },
{ 208, 0xff, 0xd7, 0xd7 }, { 209, 0xff, 0xd7, 0xff },
{ 210, 0xff, 0xff, 0x00 }, { 211, 0xff, 0xff, 0x5f },
{ 212, 0xff, 0xff, 0x87 }, { 213, 0xff, 0xff, 0xaf },
{ 214, 0xff, 0xff, 0xd7 }, { 215, 0xff, 0xff, 0xff },
{ 216, 0x08, 0x08, 0x08 }, { 217, 0x12, 0x12, 0x12 },
{ 218, 0x1c, 0x1c, 0x1c }, { 219, 0x26, 0x26, 0x26 },
{ 220, 0x30, 0x30, 0x30 }, { 221, 0x3a, 0x3a, 0x3a },
{ 222, 0x44, 0x44, 0x44 }, { 223, 0x4e, 0x4e, 0x4e },
{ 224, 0x58, 0x58, 0x58 }, { 225, 0x62, 0x62, 0x62 },
{ 226, 0x6c, 0x6c, 0x6c }, { 227, 0x76, 0x76, 0x76 },
{ 228, 0x80, 0x80, 0x80 }, { 229, 0x8a, 0x8a, 0x8a },
{ 230, 0x94, 0x94, 0x94 }, { 231, 0x9e, 0x9e, 0x9e },
{ 232, 0xa8, 0xa8, 0xa8 }, { 233, 0xb2, 0xb2, 0xb2 },
{ 234, 0xbc, 0xbc, 0xbc }, { 235, 0xc6, 0xc6, 0xc6 },
{ 236, 0xd0, 0xd0, 0xd0 }, { 237, 0xda, 0xda, 0xda },
{ 238, 0xe4, 0xe4, 0xe4 }, { 239, 0xee, 0xee, 0xee },
};
static const Color color_to_256[] = {
{ 0, 0x00, 0x00, 0x00 }, { 1, 0x00, 0x00, 0x5f },
{ 2, 0x00, 0x00, 0x87 }, { 3, 0x00, 0x00, 0xaf },
{ 4, 0x00, 0x00, 0xd7 }, { 5, 0x00, 0x00, 0xff },
{ 6, 0x00, 0x5f, 0x00 }, { 7, 0x00, 0x5f, 0x5f },
{ 8, 0x00, 0x5f, 0x87 }, { 9, 0x00, 0x5f, 0xaf },
{ 10, 0x00, 0x5f, 0xd7 }, { 11, 0x00, 0x5f, 0xff },
{ 12, 0x00, 0x87, 0x00 }, { 13, 0x00, 0x87, 0x5f },
{ 14, 0x00, 0x87, 0x87 }, { 15, 0x00, 0x87, 0xaf },
{ 16, 0x00, 0x87, 0xd7 }, { 17, 0x00, 0x87, 0xff },
{ 18, 0x00, 0xaf, 0x00 }, { 19, 0x00, 0xaf, 0x5f },
{ 20, 0x00, 0xaf, 0x87 }, { 21, 0x00, 0xaf, 0xaf },
{ 22, 0x00, 0xaf, 0xd7 }, { 23, 0x00, 0xaf, 0xff },
{ 24, 0x00, 0xd7, 0x00 }, { 25, 0x00, 0xd7, 0x5f },
{ 26, 0x00, 0xd7, 0x87 }, { 27, 0x00, 0xd7, 0xaf },
{ 28, 0x00, 0xd7, 0xd7 }, { 29, 0x00, 0xd7, 0xff },
{ 30, 0x00, 0xff, 0x00 }, { 31, 0x00, 0xff, 0x5f },
{ 32, 0x00, 0xff, 0x87 }, { 33, 0x00, 0xff, 0xaf },
{ 34, 0x00, 0xff, 0xd7 }, { 35, 0x00, 0xff, 0xff },
{ 216, 0x08, 0x08, 0x08 }, { 217, 0x12, 0x12, 0x12 },
{ 218, 0x1c, 0x1c, 0x1c }, { 219, 0x26, 0x26, 0x26 },
{ 220, 0x30, 0x30, 0x30 }, { 221, 0x3a, 0x3a, 0x3a },
{ 222, 0x44, 0x44, 0x44 }, { 223, 0x4e, 0x4e, 0x4e },
{ 224, 0x58, 0x58, 0x58 }, { 36, 0x5f, 0x00, 0x00 },
{ 37, 0x5f, 0x00, 0x5f }, { 38, 0x5f, 0x00, 0x87 },
{ 39, 0x5f, 0x00, 0xaf }, { 40, 0x5f, 0x00, 0xd7 },
{ 41, 0x5f, 0x00, 0xff }, { 42, 0x5f, 0x5f, 0x00 },
{ 43, 0x5f, 0x5f, 0x5f }, { 44, 0x5f, 0x5f, 0x87 },
{ 45, 0x5f, 0x5f, 0xaf }, { 46, 0x5f, 0x5f, 0xd7 },
{ 47, 0x5f, 0x5f, 0xff }, { 48, 0x5f, 0x87, 0x00 },
{ 49, 0x5f, 0x87, 0x5f }, { 50, 0x5f, 0x87, 0x87 },
{ 51, 0x5f, 0x87, 0xaf }, { 52, 0x5f, 0x87, 0xd7 },
{ 53, 0x5f, 0x87, 0xff }, { 54, 0x5f, 0xaf, 0x00 },
{ 55, 0x5f, 0xaf, 0x5f }, { 56, 0x5f, 0xaf, 0x87 },
{ 57, 0x5f, 0xaf, 0xaf }, { 58, 0x5f, 0xaf, 0xd7 },
{ 59, 0x5f, 0xaf, 0xff }, { 60, 0x5f, 0xd7, 0x00 },
{ 61, 0x5f, 0xd7, 0x5f }, { 62, 0x5f, 0xd7, 0x87 },
{ 63, 0x5f, 0xd7, 0xaf }, { 64, 0x5f, 0xd7, 0xd7 },
{ 65, 0x5f, 0xd7, 0xff }, { 66, 0x5f, 0xff, 0x00 },
{ 67, 0x5f, 0xff, 0x5f }, { 68, 0x5f, 0xff, 0x87 },
{ 69, 0x5f, 0xff, 0xaf }, { 70, 0x5f, 0xff, 0xd7 },
{ 71, 0x5f, 0xff, 0xff }, { 225, 0x62, 0x62, 0x62 },
{ 226, 0x6c, 0x6c, 0x6c }, { 227, 0x76, 0x76, 0x76 },
{ 228, 0x80, 0x80, 0x80 }, { 72, 0x87, 0x00, 0x00 },
{ 73, 0x87, 0x00, 0x5f }, { 74, 0x87, 0x00, 0x87 },
{ 75, 0x87, 0x00, 0xaf }, { 76, 0x87, 0x00, 0xd7 },
{ 77, 0x87, 0x00, 0xff }, { 78, 0x87, 0x5f, 0x00 },
{ 79, 0x87, 0x5f, 0x5f }, { 80, 0x87, 0x5f, 0x87 },
{ 81, 0x87, 0x5f, 0xaf }, { 82, 0x87, 0x5f, 0xd7 },
{ 83, 0x87, 0x5f, 0xff }, { 84, 0x87, 0x87, 0x00 },
{ 85, 0x87, 0x87, 0x5f }, { 86, 0x87, 0x87, 0x87 },
{ 87, 0x87, 0x87, 0xaf }, { 88, 0x87, 0x87, 0xd7 },
{ 89, 0x87, 0x87, 0xff }, { 90, 0x87, 0xaf, 0x00 },
{ 91, 0x87, 0xaf, 0x5f }, { 92, 0x87, 0xaf, 0x87 },
{ 93, 0x87, 0xaf, 0xaf }, { 94, 0x87, 0xaf, 0xd7 },
{ 95, 0x87, 0xaf, 0xff }, { 96, 0x87, 0xd7, 0x00 },
{ 97, 0x87, 0xd7, 0x5f }, { 98, 0x87, 0xd7, 0x87 },
{ 99, 0x87, 0xd7, 0xaf }, { 100, 0x87, 0xd7, 0xd7 },
{ 101, 0x87, 0xd7, 0xff }, { 102, 0x87, 0xff, 0x00 },
{ 103, 0x87, 0xff, 0x5f }, { 104, 0x87, 0xff, 0x87 },
{ 105, 0x87, 0xff, 0xaf }, { 106, 0x87, 0xff, 0xd7 },
{ 107, 0x87, 0xff, 0xff }, { 229, 0x8a, 0x8a, 0x8a },
{ 230, 0x94, 0x94, 0x94 }, { 231, 0x9e, 0x9e, 0x9e },
{ 232, 0xa8, 0xa8, 0xa8 }, { 108, 0xaf, 0x00, 0x00 },
{ 109, 0xaf, 0x00, 0x5f }, { 110, 0xaf, 0x00, 0x87 },
{ 111, 0xaf, 0x00, 0xaf }, { 112, 0xaf, 0x00, 0xd7 },
{ 113, 0xaf, 0x00, 0xff }, { 114, 0xaf, 0x5f, 0x00 },
{ 115, 0xaf, 0x5f, 0x5f }, { 116, 0xaf, 0x5f, 0x87 },
{ 117, 0xaf, 0x5f, 0xaf }, { 118, 0xaf, 0x5f, 0xd7 },
{ 119, 0xaf, 0x5f, 0xff }, { 120, 0xaf, 0x87, 0x00 },
{ 121, 0xaf, 0x87, 0x5f }, { 122, 0xaf, 0x87, 0x87 },
{ 123, 0xaf, 0x87, 0xaf }, { 124, 0xaf, 0x87, 0xd7 },
{ 125, 0xaf, 0x87, 0xff }, { 126, 0xaf, 0xaf, 0x00 },
{ 127, 0xaf, 0xaf, 0x5f }, { 128, 0xaf, 0xaf, 0x87 },
{ 129, 0xaf, 0xaf, 0xaf }, { 130, 0xaf, 0xaf, 0xd7 },
{ 131, 0xaf, 0xaf, 0xff }, { 132, 0xaf, 0xd7, 0x00 },
{ 133, 0xaf, 0xd7, 0x5f }, { 134, 0xaf, 0xd7, 0x87 },
{ 135, 0xaf, 0xd7, 0xaf }, { 136, 0xaf, 0xd7, 0xd7 },
{ 137, 0xaf, 0xd7, 0xff }, { 138, 0xaf, 0xff, 0x00 },
{ 139, 0xaf, 0xff, 0x5f }, { 140, 0xaf, 0xff, 0x87 },
{ 141, 0xaf, 0xff, 0xaf }, { 142, 0xaf, 0xff, 0xd7 },
{ 143, 0xaf, 0xff, 0xff }, { 233, 0xb2, 0xb2, 0xb2 },
{ 234, 0xbc, 0xbc, 0xbc }, { 235, 0xc6, 0xc6, 0xc6 },
{ 236, 0xd0, 0xd0, 0xd0 }, { 144, 0xd7, 0x00, 0x00 },
{ 145, 0xd7, 0x00, 0x5f }, { 146, 0xd7, 0x00, 0x87 },
{ 147, 0xd7, 0x00, 0xaf }, { 148, 0xd7, 0x00, 0xd7 },
{ 149, 0xd7, 0x00, 0xff }, { 150, 0xd7, 0x5f, 0x00 },
{ 151, 0xd7, 0x5f, 0x5f }, { 152, 0xd7, 0x5f, 0x87 },
{ 153, 0xd7, 0x5f, 0xaf }, { 154, 0xd7, 0x5f, 0xd7 },
{ 155, 0xd7, 0x5f, 0xff }, { 156, 0xd7, 0x87, 0x00 },
{ 157, 0xd7, 0x87, 0x5f }, { 158, 0xd7, 0x87, 0x87 },
{ 159, 0xd7, 0x87, 0xaf }, { 160, 0xd7, 0x87, 0xd7 },
{ 161, 0xd7, 0x87, 0xff }, { 162, 0xd7, 0xaf, 0x00 },
{ 163, 0xd7, 0xaf, 0x5f }, { 164, 0xd7, 0xaf, 0x87 },
{ 165, 0xd7, 0xaf, 0xaf }, { 166, 0xd7, 0xaf, 0xd7 },
{ 167, 0xd7, 0xaf, 0xff }, { 168, 0xd7, 0xd7, 0x00 },
{ 169, 0xd7, 0xd7, 0x5f }, { 170, 0xd7, 0xd7, 0x87 },
{ 171, 0xd7, 0xd7, 0xaf }, { 172, 0xd7, 0xd7, 0xd7 },
{ 173, 0xd7, 0xd7, 0xff }, { 174, 0xd7, 0xff, 0x00 },
{ 175, 0xd7, 0xff, 0x5f }, { 176, 0xd7, 0xff, 0x87 },
{ 177, 0xd7, 0xff, 0xaf }, { 178, 0xd7, 0xff, 0xd7 },
{ 179, 0xd7, 0xff, 0xff }, { 237, 0xda, 0xda, 0xda },
{ 238, 0xe4, 0xe4, 0xe4 }, { 239, 0xee, 0xee, 0xee },
{ 180, 0xff, 0x00, 0x00 }, { 181, 0xff, 0x00, 0x5f },
{ 182, 0xff, 0x00, 0x87 }, { 183, 0xff, 0x00, 0xaf },
{ 184, 0xff, 0x00, 0xd7 }, { 185, 0xff, 0x00, 0xff },
{ 186, 0xff, 0x5f, 0x00 }, { 187, 0xff, 0x5f, 0x5f },
{ 188, 0xff, 0x5f, 0x87 }, { 189, 0xff, 0x5f, 0xaf },
{ 190, 0xff, 0x5f, 0xd7 }, { 191, 0xff, 0x5f, 0xff },
{ 192, 0xff, 0x87, 0x00 }, { 193, 0xff, 0x87, 0x5f },
{ 194, 0xff, 0x87, 0x87 }, { 195, 0xff, 0x87, 0xaf },
{ 196, 0xff, 0x87, 0xd7 }, { 197, 0xff, 0x87, 0xff },
{ 198, 0xff, 0xaf, 0x00 }, { 199, 0xff, 0xaf, 0x5f },
{ 200, 0xff, 0xaf, 0x87 }, { 201, 0xff, 0xaf, 0xaf },
{ 202, 0xff, 0xaf, 0xd7 }, { 203, 0xff, 0xaf, 0xff },
{ 204, 0xff, 0xd7, 0x00 }, { 205, 0xff, 0xd7, 0x5f },
{ 206, 0xff, 0xd7, 0x87 }, { 207, 0xff, 0xd7, 0xaf },
{ 208, 0xff, 0xd7, 0xd7 }, { 209, 0xff, 0xd7, 0xff },
{ 210, 0xff, 0xff, 0x00 }, { 211, 0xff, 0xff, 0x5f },
{ 212, 0xff, 0xff, 0x87 }, { 213, 0xff, 0xff, 0xaf },
{ 214, 0xff, 0xff, 0xd7 }, { 215, 0xff, 0xff, 0xff },
};
static const unsigned char color_256_to_16[256] = {
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
0, 4, 4, 4, 12, 12, 2, 6, 4, 4, 12, 12, 2, 2, 6, 4,
12, 12, 2, 2, 2, 6, 12, 12, 10, 10, 10, 10, 14, 12, 10, 10,
10, 10, 10, 14, 1, 5, 4, 4, 12, 12, 3, 8, 4, 4, 12, 12,
2, 2, 6, 4, 12, 12, 2, 2, 2, 6, 12, 12, 10, 10, 10, 10,
14, 12, 10, 10, 10, 10, 10, 14, 1, 1, 5, 4, 12, 12, 1, 1,
5, 4, 12, 12, 3, 3, 8, 4, 12, 12, 2, 2, 2, 6, 12, 12,
10, 10, 10, 10, 14, 12, 10, 10, 10, 10, 10, 14, 1, 1, 1, 5,
12, 12, 1, 1, 1, 5, 12, 12, 1, 1, 1, 5, 12, 12, 3, 3,
3, 7, 12, 12, 10, 10, 10, 10, 14, 12, 10, 10, 10, 10, 10, 14,
9, 9, 9, 9, 13, 12, 9, 9, 9, 9, 13, 12, 9, 9, 9, 9,
13, 12, 9, 9, 9, 9, 13, 12, 11, 11, 11, 11, 7, 12, 10, 10,
10, 10, 10, 14, 9, 9, 9, 9, 9, 13, 9, 9, 9, 9, 9, 13,
9, 9, 9, 9, 9, 13, 9, 9, 9, 9, 9, 13, 9, 9, 9, 9,
9, 13, 11, 11, 11, 11, 11, 15, 0, 0, 0, 0, 0, 0, 8, 8,
8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 15, 15, 15, 15, 15, 15
};
Color rgb = { .r = r, .g = g, .b = b };
const Color *found = bsearch(&rgb, color_to_256, LENGTH(color_to_256),
sizeof color_to_256[0], color_compare);
if (!found) {
unsigned lowest = UINT_MAX;
found = color_from_256;
for (int i = 0; i < 240; i++) {
int dr = (int)color_from_256[i].r - r;
int dg = (int)color_from_256[i].g - g;
int db = (int)color_from_256[i].b - b;
unsigned int distance = dr * dr + dg * dg + db * db;
if (distance < lowest) {
lowest = distance;
found = &color_from_256[i];
}
}
}
if (COLORS <= 16)
return color_256_to_16[found->i + 16];
return found->i + 16;
}
/* Convert color from string. */
static int color_fromstring(const char *s)
{
if (!s)
return -1;
if (*s == '#' && strlen(s) == 7) {
const char *cp;
unsigned char r, g, b;
for (cp = s + 1; isxdigit((unsigned char)*cp); cp++);
if (*cp != '\0')
return -1;
int n = sscanf(s + 1, "%2hhx%2hhx%2hhx", &r, &g, &b);
if (n != 3)
return -1;
return color_find_rgb(r, g, b);
} else if ('0' <= *s && *s <= '9') {
int col = atoi(s);
return (col <= 0 || col > 255) ? -1 : col;
}
if (strcasecmp(s, "black") == 0)
return 0;
if (strcasecmp(s, "red") == 0)
return 1;
if (strcasecmp(s, "green") == 0)
return 2;
if (strcasecmp(s, "yellow") == 0)
return 3;
if (strcasecmp(s, "blue") == 0)
return 4;
if (strcasecmp(s, "magenta") == 0)
return 5;
if (strcasecmp(s, "cyan") == 0)
return 6;
if (strcasecmp(s, "white") == 0)
return 7;
return -1;
}
static inline unsigned int color_pair_hash(short fg, short bg) {
if (fg == -1)
fg = COLORS;
if (bg == -1)
bg = COLORS + 1;
return fg * (COLORS + 2) + bg;
}
static short color_pair_get(short fg, short bg) {
static bool has_default_colors;
static short *color2palette, default_fg, default_bg;
static short color_pairs_max, color_pair_current;
if (!color2palette) {
pair_content(0, &default_fg, &default_bg);
if (default_fg == -1)
default_fg = COLOR_WHITE;
if (default_bg == -1)
default_bg = COLOR_BLACK;
has_default_colors = (use_default_colors() == OK);
color_pairs_max = MIN(COLOR_PAIRS, MAX_COLOR_PAIRS);
if (COLORS)
color2palette = calloc((COLORS + 2) * (COLORS + 2), sizeof(short));
}
if (fg >= COLORS)
fg = default_fg;
if (bg >= COLORS)
bg = default_bg;
if (!has_default_colors) {
if (fg == -1)
fg = default_fg;
if (bg == -1)
bg = default_bg;
}
if (!color2palette || (fg == -1 && bg == -1))
return 0;
unsigned int index = color_pair_hash(fg, bg);
if (color2palette[index] == 0) {
short oldfg, oldbg;
if (++color_pair_current >= color_pairs_max)
color_pair_current = 1;
pair_content(color_pair_current, &oldfg, &oldbg);
unsigned int old_index = color_pair_hash(oldfg, oldbg);
if (init_pair(color_pair_current, fg, bg) == OK) {
color2palette[old_index] = 0;
color2palette[index] = color_pair_current;
}
}
return color2palette[index];
}
static inline attr_t style_to_attr(CellStyle *style) {
return style->attr | COLOR_PAIR(color_pair_get(style->fg, style->bg));
}
static bool ui_window_syntax_style(UiWin *w, int id, const char *style) {
UiCursesWin *win = (UiCursesWin*)w;
if (id >= UI_STYLE_MAX)
return false;
if (!style)
return true;
CellStyle cell_style = win->styles[UI_STYLE_DEFAULT];
char *style_copy = strdup(style), *option = style_copy, *next, *p;
while (option) {
if ((next = strchr(option, ',')))
*next++ = '\0';
if ((p = strchr(option, ':')))
*p++ = '\0';
if (!strcasecmp(option, "reverse")) {
cell_style.attr |= A_REVERSE;
} else if (!strcasecmp(option, "bold")) {
cell_style.attr |= A_BOLD;
} else if (!strcasecmp(option, "notbold")) {
cell_style.attr &= ~A_BOLD;
#ifdef A_ITALIC
} else if (!strcasecmp(option, "italics")) {
cell_style.attr |= A_ITALIC;
} else if (!strcasecmp(option, "notitalics")) {
cell_style.attr &= ~A_ITALIC;
#endif
} else if (!strcasecmp(option, "underlined")) {
cell_style.attr |= A_UNDERLINE;
} else if (!strcasecmp(option, "notunderlined")) {
cell_style.attr &= ~A_UNDERLINE;
} else if (!strcasecmp(option, "blink")) {
cell_style.attr |= A_BLINK;
} else if (!strcasecmp(option, "notblink")) {
cell_style.attr &= ~A_BLINK;
} else if (!strcasecmp(option, "fore")) {
cell_style.fg = color_fromstring(p);
} else if (!strcasecmp(option, "back")) {
cell_style.bg = color_fromstring(p);
}
option = next;
}
win->styles[id] = cell_style;
free(style_copy);
return true;
}
static void ui_window_resize(UiCursesWin *win, int width, int height) {
win->width = width;
win->height = height;
if (win->winstatus)
wresize(win->winstatus, 1, width);
wresize(win->win, win->winstatus ? height - 1 : height, width - win->sidebar_width);
if (win->winside)
wresize(win->winside, height-1, win->sidebar_width);
view_resize(win->view, width - win->sidebar_width, win->winstatus ? height - 1 : height);
view_update(win->view);
}
static void ui_window_move(UiCursesWin *win, int x, int y) {
win->x = x;
win->y = y;
mvwin(win->win, y, x + win->sidebar_width);
if (win->winside)
mvwin(win->winside, y, x);
if (win->winstatus)
mvwin(win->winstatus, y + win->height - 1, x);
}
static bool ui_window_draw_sidebar(UiCursesWin *win) {
if (!win->winside)
return true;
const Line *line = view_lines_get(win->view);
int sidebar_width = snprintf(NULL, 0, "%zd", line->lineno + win->height - 2) + 1;
if (win->sidebar_width != sidebar_width) {
win->sidebar_width = sidebar_width;
ui_window_resize(win, win->width, win->height);
ui_window_move(win, win->x, win->y);
return false;
} else {
int i = 0;
size_t prev_lineno = 0;
const Line *cursor_line = view_line_get(win->view);
size_t cursor_lineno = cursor_line->lineno;
werase(win->winside);
wbkgd(win->winside, style_to_attr(&win->styles[UI_STYLE_DEFAULT]));
wattrset(win->winside, style_to_attr(&win->styles[UI_STYLE_LINENUMBER]));
for (const Line *l = line; l; l = l->next, i++) {
if (l->lineno && l->lineno != prev_lineno) {
if (win->options & UI_OPTION_LINE_NUMBERS_ABSOLUTE) {
mvwprintw(win->winside, i, 0, "%*u", sidebar_width-1, l->lineno);
} else if (win->options & UI_OPTION_LINE_NUMBERS_RELATIVE) {
size_t rel = (win->options & UI_OPTION_LARGE_FILE) ? 0 : l->lineno;
if (l->lineno > cursor_lineno)
rel = l->lineno - cursor_lineno;
else if (l->lineno < cursor_lineno)
rel = cursor_lineno - l->lineno;
mvwprintw(win->winside, i, 0, "%*u", sidebar_width-1, rel);
}
}
prev_lineno = l->lineno;
}
mvwvline(win->winside, 0, sidebar_width-1, ACS_VLINE, win->height-1);
return true;
}
}
static void ui_window_draw_status(UiWin *w) {
UiCursesWin *win = (UiCursesWin*)w;
if (!win->winstatus)
return;
UiCurses *uic = win->ui;
Vis *vis = uic->vis;
bool focused = uic->selwin == win;
const char *filename = win->file->name;
const char *status = vis_mode_status(vis);
wattrset(win->winstatus, focused ? A_REVERSE|A_BOLD : A_REVERSE);
mvwhline(win->winstatus, 0, 0, ' ', win->width);
mvwprintw(win->winstatus, 0, 0, "%s %s %s %s",
focused && status ? status : "",
filename ? filename : "[No Name]",
text_modified(win->file->text) ? "[+]" : "",
vis_macro_recording(vis) ? "recording": "");
char buf[4*32] = "", *msg = buf;
int cursor_count = view_cursors_count(win->view);
if (cursor_count > 1) {
Cursor *c = view_cursors_primary_get(win->view);
int cursor_number = view_cursors_number(c) + 1;
msg += sprintf(msg, "[%d/%d] ", cursor_number, cursor_count);
}
if (!(win->options & UI_OPTION_LARGE_FILE)) {
Cursor *cur = view_cursors_primary_get(win->view);
size_t line = view_cursors_line(cur);
size_t col = view_cursors_col(cur);
if (col > UI_LARGE_FILE_LINE_SIZE)
win->options |= UI_OPTION_LARGE_FILE;
msg += sprintf(msg, "%zu, %zu", line, col);
}
if (buf[0])
mvwaddstr(win->winstatus, 0, win->width - (msg - buf) - 1, buf);
}
static void ui_window_draw(UiWin *w) {
UiCursesWin *win = (UiCursesWin*)w;
if (!ui_window_draw_sidebar(win))
return;
wbkgd(win->win, style_to_attr(&win->styles[UI_STYLE_DEFAULT]));
wmove(win->win, 0, 0);
int width = view_width_get(win->view);
CellStyle *prev_style = NULL;
size_t cursor_lineno = -1;
if (win->options & UI_OPTION_CURSOR_LINE && win->ui->selwin == win) {
Filerange selection = view_selection_get(win->view);
if (!view_cursors_multiple(win->view) && !text_range_valid(&selection)) {
const Line *line = view_line_get(win->view);
cursor_lineno = line->lineno;
}
}
short selection_bg = win->styles[UI_STYLE_SELECTION].bg;
short cursor_line_bg = win->styles[UI_STYLE_CURSOR_LINE].bg;
bool multiple_cursors = view_cursors_multiple(win->view);
attr_t attr = A_NORMAL;
for (const Line *l = view_lines_get(win->view); l; l = l->next) {
bool cursor_line = l->lineno == cursor_lineno;
for (int x = 0; x < width; x++) {
enum UiStyles style_id = l->cells[x].style;
if (style_id == 0)
style_id = UI_STYLE_DEFAULT;
CellStyle *style = &win->styles[style_id];
if (l->cells[x].cursor && win->ui->selwin == win) {
if (multiple_cursors && l->cells[x].cursor_primary)
attr = style_to_attr(&win->styles[UI_STYLE_CURSOR_PRIMARY]);
else
attr = style_to_attr(&win->styles[UI_STYLE_CURSOR]);
prev_style = NULL;
} else if (l->cells[x].selected) {
if (style->fg == selection_bg)
attr |= A_REVERSE;
else
attr = style->attr | COLOR_PAIR(color_pair_get(style->fg, selection_bg));
prev_style = NULL;
} else if (cursor_line) {
attr = style->attr | COLOR_PAIR(color_pair_get(style->fg, cursor_line_bg));
prev_style = NULL;
} else if (style != prev_style) {
attr = style_to_attr(style);
prev_style = style;
}
wattrset(win->win, attr);
waddstr(win->win, l->cells[x].data);
}
/* try to fixup display issues, in theory we should always output a full line */
int x, y;
getyx(win->win, y, x);
(void)y;
wattrset(win->win, A_NORMAL);
for (; 0 < x && x < width; x++)
waddstr(win->win, " ");
}
wclrtobot(win->win);
if (win->winstatus)
ui_window_draw_status(w);
}
static void ui_window_reload(UiWin *w, File *file) {
UiCursesWin *win = (UiCursesWin*)w;
win->file = file;
win->sidebar_width = 0;
view_reload(win->view, file->text);
ui_window_draw(w);
}
static void ui_window_update(UiCursesWin *win) {
if (win->winstatus)
wnoutrefresh(win->winstatus);
if (win->winside)
wnoutrefresh(win->winside);
wnoutrefresh(win->win);
}
static void ui_arrange(Ui *ui, enum UiLayout layout) {
UiCurses *uic = (UiCurses*)ui;
uic->layout = layout;
int n = 0, m = !!uic->info[0], x = 0, y = 0;
for (UiCursesWin *win = uic->windows; win; win = win->next) {
if (win->options & UI_OPTION_ONELINE)
m++;
else
n++;
}
int max_height = uic->height - m;
int width = (uic->width / MAX(1, n)) - 1;
int height = max_height / MAX(1, n);
for (UiCursesWin *win = uic->windows; win; win = win->next) {
if (win->options & UI_OPTION_ONELINE)
continue;
n--;
if (layout == UI_LAYOUT_HORIZONTAL) {
int h = n ? height : max_height - y;
ui_window_resize(win, uic->width, h);
ui_window_move(win, x, y);
y += h;
} else {
int w = n ? width : uic->width - x;
ui_window_resize(win, w, max_height);
ui_window_move(win, x, y);
x += w;
if (n)
mvvline(0, x++, ACS_VLINE, max_height);
}
}
if (layout == UI_LAYOUT_VERTICAL)
y = max_height;
for (UiCursesWin *win = uic->windows; win; win = win->next) {
if (!(win->options & UI_OPTION_ONELINE))
continue;
ui_window_resize(win, uic->width, 1);
ui_window_move(win, 0, y++);
}
}
static void ui_draw(Ui *ui) {
UiCurses *uic = (UiCurses*)ui;
erase();
ui_arrange(ui, uic->layout);
for (UiCursesWin *win = uic->windows; win; win = win->next)
ui_window_draw((UiWin*)win);
if (uic->info[0]) {
attrset(A_BOLD);
mvaddstr(uic->height-1, 0, uic->info);
}
wnoutrefresh(stdscr);
}
static void ui_redraw(Ui *ui) {
clear();
ui_draw(ui);
}
static void ui_resize_to(Ui *ui, int width, int height) {
UiCurses *uic = (UiCurses*)ui;
uic->width = width;
uic->height = height;
ui_draw(ui);
}
static void ui_resize(Ui *ui) {
struct winsize ws;
int width, height;
if (ioctl(STDERR_FILENO, TIOCGWINSZ, &ws) == -1) {
getmaxyx(stdscr, height, width);
} else {
width = ws.ws_col;
height = ws.ws_row;
}
resizeterm(height, width);
wresize(stdscr, height, width);
ui_resize_to(ui, width, height);
}
static void ui_update(Ui *ui) {
UiCurses *uic = (UiCurses*)ui;
if (need_resize) {
ui_resize(ui);
need_resize = false;
}
for (UiCursesWin *win = uic->windows; win; win = win->next) {
if (win != uic->selwin)
ui_window_update(win);
}
if (uic->selwin)
ui_window_update(uic->selwin);
doupdate();
}
static void ui_window_free(UiWin *w) {
UiCursesWin *win = (UiCursesWin*)w;
if (!win)
return;
UiCurses *uic = win->ui;
if (win->prev)
win->prev->next = win->next;
if (win->next)
win->next->prev = win->prev;
if (uic->windows == win)
uic->windows = win->next;
if (uic->selwin == win)
uic->selwin = NULL;
win->next = win->prev = NULL;
if (win->winstatus)
delwin(win->winstatus);
if (win->winside)
delwin(win->winside);
if (win->win)
delwin(win->win);
free(win);
}
static void ui_window_focus(UiWin *w) {
UiCursesWin *win = (UiCursesWin*)w;
UiCursesWin *oldsel = win->ui->selwin;
win->ui->selwin = win;
if (oldsel)
ui_window_draw((UiWin*)oldsel);
ui_window_draw(w);
}
static void ui_window_options_set(UiWin *w, enum UiOption options) {
UiCursesWin *win = (UiCursesWin*)w;
win->options = options;
if (options & (UI_OPTION_LINE_NUMBERS_ABSOLUTE|UI_OPTION_LINE_NUMBERS_RELATIVE)) {
if (!win->winside)
win->winside = newwin(1, 1, 1, 1);
} else {
if (win->winside) {
delwin(win->winside);
win->winside = NULL;
win->sidebar_width = 0;
}
}
if (options & UI_OPTION_STATUSBAR) {
if (!win->winstatus)
win->winstatus = newwin(1, 0, 0, 0);
} else {
if (win->winstatus)
delwin(win->winstatus);
win->winstatus = NULL;
}
if (options & UI_OPTION_ONELINE) {
/* move the new window to the end of the list */
UiCurses *uic = win->ui;
UiCursesWin *last = uic->windows;
while (last->next)
last = last->next;
if (last != win) {
if (win->prev)
win->prev->next = win->next;
if (win->next)
win->next->prev = win->prev;
if (uic->windows == win)
uic->windows = win->next;
last->next = win;
win->prev = last;
win->next = NULL;
}
}
ui_draw((Ui*)win->ui);
}
static enum UiOption ui_window_options_get(UiWin *w) {
UiCursesWin *win = (UiCursesWin*)w;
return win->options;
}
static void ui_window_swap(UiWin *aw, UiWin *bw) {
UiCursesWin *a = (UiCursesWin*)aw;
UiCursesWin *b = (UiCursesWin*)bw;
if (a == b || !a || !b)
return;
UiCurses *ui = a->ui;
UiCursesWin *tmp = a->next;
a->next = b->next;
b->next = tmp;
if (a->next)
a->next->prev = a;
if (b->next)
b->next->prev = b;
tmp = a->prev;
a->prev = b->prev;
b->prev = tmp;
if (a->prev)
a->prev->next = a;
if (b->prev)
b->prev->next = b;
if (ui->windows == a)
ui->windows = b;
else if (ui->windows == b)
ui->windows = a;
if (ui->selwin == a)
ui_window_focus(bw);
else if (ui->selwin == b)
ui_window_focus(aw);
}
static UiWin *ui_window_new(Ui *ui, View *view, File *file, enum UiOption options) {
UiCurses *uic = (UiCurses*)ui;
UiCursesWin *win = calloc(1, sizeof(UiCursesWin));
if (!win)
return NULL;
win->uiwin = (UiWin) {
.draw = ui_window_draw,
.draw_status = ui_window_draw_status,
.options_set = ui_window_options_set,
.options_get = ui_window_options_get,
.reload = ui_window_reload,
.syntax_style = ui_window_syntax_style,
};
if (!(win->win = newwin(0, 0, 0, 0))) {
ui_window_free((UiWin*)win);
return NULL;
}
for (int i = 0; i < UI_STYLE_MAX; i++) {
win->styles[i] = (CellStyle) {
.fg = -1, .bg = -1, .attr = A_NORMAL,
};
}
win->styles[UI_STYLE_CURSOR].attr |= A_REVERSE;
win->styles[UI_STYLE_CURSOR_PRIMARY].attr |= A_REVERSE|A_BLINK;
win->styles[UI_STYLE_SELECTION].attr |= A_REVERSE;