| 1 |
/* |
| 2 |
* $Id: grxlib.c,v 1.2 2003/11/24 17:31:28 pcg Exp $ |
| 3 |
*/ |
| 4 |
|
| 5 |
#include "../../config.h" |
| 6 |
#include "rxvt.h" |
| 7 |
#include "init.h" /* for GET_TERMIOS / SET_TERMIOS */ |
| 8 |
#include "grxlib.h" |
| 9 |
|
| 10 |
/*----------------------------------------------------------------------*/ |
| 11 |
|
| 12 |
void |
| 13 |
Done(void) |
| 14 |
{ |
| 15 |
putchar(':'); |
| 16 |
} |
| 17 |
|
| 18 |
void |
| 19 |
StartLine(long id) |
| 20 |
{ |
| 21 |
printf("\033GL%ld", id); |
| 22 |
} |
| 23 |
|
| 24 |
void |
| 25 |
StartPoint(long id) |
| 26 |
{ |
| 27 |
printf("\033GP%ld", id); |
| 28 |
} |
| 29 |
|
| 30 |
void |
| 31 |
StartFill(long id) |
| 32 |
{ |
| 33 |
printf("\033GF%ld", id); |
| 34 |
} |
| 35 |
|
| 36 |
void |
| 37 |
Extend(int x, int y) |
| 38 |
{ |
| 39 |
printf(";%d;%d", x, y); |
| 40 |
} |
| 41 |
|
| 42 |
void |
| 43 |
FillArea(int x1, int y1, int x2, int y2) |
| 44 |
{ |
| 45 |
printf(";%d;%d;%d;%d", x1, y1, x2, y2); |
| 46 |
} |
| 47 |
|
| 48 |
void |
| 49 |
PlaceText(long id, int x, int y, int mode, char *text) |
| 50 |
{ |
| 51 |
printf("\033GT%ld;%d;%d;%d;%d:%s", id, x, y, mode, strlen(text), text); |
| 52 |
fflush(stdout); |
| 53 |
} |
| 54 |
|
| 55 |
void |
| 56 |
ClearWindow(long id) |
| 57 |
{ |
| 58 |
printf("\033GC%ld:", id); |
| 59 |
} |
| 60 |
|
| 61 |
void |
| 62 |
ForeColor(int col) |
| 63 |
{ |
| 64 |
printf("\033[3%dm", (col < 0 || col > 7) ? 0 : col); |
| 65 |
} |
| 66 |
|
| 67 |
void |
| 68 |
DefaultRendition(void) |
| 69 |
{ |
| 70 |
printf("\033[m"); |
| 71 |
} |
| 72 |
|
| 73 |
#define LINESZ 100 |
| 74 |
static char line[LINESZ]; |
| 75 |
static FILE *infd = NULL; |
| 76 |
|
| 77 |
long |
| 78 |
CreateWin(int x, int y, int w, int h) |
| 79 |
{ |
| 80 |
long id = 0; |
| 81 |
|
| 82 |
fflush(stdout); |
| 83 |
printf("\033GW%d;%d;%d;%d:", x, y, w, h); |
| 84 |
fflush(stdout); |
| 85 |
while (1) { |
| 86 |
if ((fgets(line, LINESZ, infd) != NULL) && |
| 87 |
(sscanf(line, "\033W%ld", &id) == 1)) |
| 88 |
break; |
| 89 |
} |
| 90 |
return id; |
| 91 |
} |
| 92 |
|
| 93 |
void |
| 94 |
QueryWin(long id, int *nfwidth, int *nfheight) |
| 95 |
{ |
| 96 |
int id1, x, y, width, height, fwidth, fheight; |
| 97 |
|
| 98 |
printf("\033GG%ld:", id); |
| 99 |
fflush(stdout); |
| 100 |
while (1) { |
| 101 |
if ((fgets(line, sizeof(line), infd) != NULL) && |
| 102 |
(sscanf(line, "\033G%ld %ld %ld %ld %ld %ld %ld %ld %ld", |
| 103 |
&id1, &x, &y, &width, &height, |
| 104 |
&fwidth, &fheight, nfwidth, nfheight) != 0)) |
| 105 |
break; |
| 106 |
} |
| 107 |
} |
| 108 |
|
| 109 |
int |
| 110 |
WaitForCarriageReturn(long *win, int *x, int *y) |
| 111 |
{ |
| 112 |
int i, len; |
| 113 |
|
| 114 |
fgets(line, LINESZ, infd); |
| 115 |
line[LINESZ - 1] = 0; |
| 116 |
len = strlen(line); |
| 117 |
for (i = 0; i < len; i++) { |
| 118 |
if (line[i] == '\033') { |
| 119 |
int ret = 1; |
| 120 |
|
| 121 |
i++; |
| 122 |
switch (line[i]) { |
| 123 |
case 'R': |
| 124 |
ret++; |
| 125 |
/* drop */ |
| 126 |
case 'P': |
| 127 |
sscanf(&line[i + 1], "%ld;%d;%d", win, x, y); |
| 128 |
return ret; |
| 129 |
break; |
| 130 |
} |
| 131 |
} |
| 132 |
} |
| 133 |
return 0; |
| 134 |
} |
| 135 |
|
| 136 |
static int fno2; |
| 137 |
static ttymode_t ttmode; |
| 138 |
|
| 139 |
int |
| 140 |
InitializeGraphics(int scroll_text_up) |
| 141 |
{ |
| 142 |
int fno, i; |
| 143 |
char *screen_tty; |
| 144 |
struct winsize winsize; |
| 145 |
|
| 146 |
fno = fileno(stdout); |
| 147 |
if (!isatty(fno)) { |
| 148 |
fprintf(stderr, "stdout must be a tty\n"); |
| 149 |
return 0; |
| 150 |
} |
| 151 |
screen_tty = ttyname(fno); |
| 152 |
|
| 153 |
#ifdef HAVE_TERMIOS_H |
| 154 |
GET_TERMIOS(fno, &ttmode); |
| 155 |
ttmode.c_lflag &= ~ECHO; |
| 156 |
SET_TERMIOS(fno, &ttmode); |
| 157 |
#endif |
| 158 |
|
| 159 |
infd = fopen(screen_tty, "rw"); |
| 160 |
|
| 161 |
#ifdef HAVE_TERMIOS_H |
| 162 |
fno2 = fileno(infd); |
| 163 |
GET_TERMIOS(fno2, &ttmode); |
| 164 |
ttmode.c_lflag &= ~ECHO; |
| 165 |
SET_TERMIOS(fno2, &ttmode); |
| 166 |
#endif |
| 167 |
|
| 168 |
/* query rxvt to find if graphics are available */ |
| 169 |
fflush(stdout); |
| 170 |
printf("\033GQ"); |
| 171 |
fflush(stdout); |
| 172 |
while (1) { |
| 173 |
if ((fgets(line, LINESZ, infd) != NULL) && |
| 174 |
(sscanf(line, "\033G%d", &i) == 1)) { |
| 175 |
if (!i) { |
| 176 |
fprintf(stderr, "rxvt graphics not available\n"); |
| 177 |
CloseGraphics(); |
| 178 |
return 0; |
| 179 |
} |
| 180 |
break; |
| 181 |
} |
| 182 |
} |
| 183 |
if (scroll_text_up) { |
| 184 |
ioctl(fno, TIOCGWINSZ, &winsize); |
| 185 |
fflush(stdout); |
| 186 |
for (i = 0; i < winsize.ws_row; i++) |
| 187 |
putchar('\n'); |
| 188 |
fflush(stdout); |
| 189 |
} |
| 190 |
return i; |
| 191 |
} |
| 192 |
|
| 193 |
void |
| 194 |
CloseGraphics(void) |
| 195 |
{ |
| 196 |
DefaultRendition(); |
| 197 |
fflush(stdout); |
| 198 |
#ifdef HAVE_TERMIOS_H |
| 199 |
ttmode.c_lflag |= ECHO; |
| 200 |
SET_TERMIOS(fno2, &ttmode); |
| 201 |
#endif |
| 202 |
fclose(infd); |
| 203 |
} |
| 204 |
|
| 205 |
/*----------------------- end-of-file (C source) -----------------------*/ |
