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pcg |
1.1 |
/* |
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pcg |
1.3 |
* $Id: grxlib.c,v 1.2 2003/11/24 17:31:28 pcg Exp $ |
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pcg |
1.1 |
*/ |
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#include "../../config.h" |
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#include "rxvt.h" |
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#include "init.h" /* for GET_TERMIOS / SET_TERMIOS */ |
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#include "grxlib.h" |
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/*----------------------------------------------------------------------*/ |
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void |
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Done(void) |
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{ |
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putchar(':'); |
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} |
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void |
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StartLine(long id) |
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{ |
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printf("\033GL%ld", id); |
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} |
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void |
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StartPoint(long id) |
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{ |
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printf("\033GP%ld", id); |
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} |
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void |
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StartFill(long id) |
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{ |
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printf("\033GF%ld", id); |
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} |
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void |
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Extend(int x, int y) |
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{ |
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printf(";%d;%d", x, y); |
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} |
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void |
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FillArea(int x1, int y1, int x2, int y2) |
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{ |
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printf(";%d;%d;%d;%d", x1, y1, x2, y2); |
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} |
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void |
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PlaceText(long id, int x, int y, int mode, char *text) |
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{ |
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printf("\033GT%ld;%d;%d;%d;%d:%s", id, x, y, mode, strlen(text), text); |
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fflush(stdout); |
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} |
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void |
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ClearWindow(long id) |
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{ |
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printf("\033GC%ld:", id); |
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} |
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void |
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ForeColor(int col) |
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{ |
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printf("\033[3%dm", (col < 0 || col > 7) ? 0 : col); |
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} |
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void |
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DefaultRendition(void) |
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{ |
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printf("\033[m"); |
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} |
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#define LINESZ 100 |
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static char line[LINESZ]; |
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static FILE *infd = NULL; |
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long |
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CreateWin(int x, int y, int w, int h) |
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{ |
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long id = 0; |
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fflush(stdout); |
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printf("\033GW%d;%d;%d;%d:", x, y, w, h); |
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fflush(stdout); |
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while (1) { |
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if ((fgets(line, LINESZ, infd) != NULL) && |
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(sscanf(line, "\033W%ld", &id) == 1)) |
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break; |
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} |
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return id; |
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} |
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void |
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QueryWin(long id, int *nfwidth, int *nfheight) |
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{ |
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int id1, x, y, width, height, fwidth, fheight; |
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printf("\033GG%ld:", id); |
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fflush(stdout); |
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while (1) { |
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if ((fgets(line, sizeof(line), infd) != NULL) && |
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(sscanf(line, "\033G%ld %ld %ld %ld %ld %ld %ld %ld %ld", |
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&id1, &x, &y, &width, &height, |
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&fwidth, &fheight, nfwidth, nfheight) != 0)) |
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break; |
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} |
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} |
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int |
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WaitForCarriageReturn(long *win, int *x, int *y) |
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{ |
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int i, len; |
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fgets(line, LINESZ, infd); |
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line[LINESZ - 1] = 0; |
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len = strlen(line); |
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for (i = 0; i < len; i++) { |
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if (line[i] == '\033') { |
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int ret = 1; |
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i++; |
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switch (line[i]) { |
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case 'R': |
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ret++; |
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/* drop */ |
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case 'P': |
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sscanf(&line[i + 1], "%ld;%d;%d", win, x, y); |
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return ret; |
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break; |
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} |
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} |
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} |
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return 0; |
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} |
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static int fno2; |
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static ttymode_t ttmode; |
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int |
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InitializeGraphics(int scroll_text_up) |
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{ |
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int fno, i; |
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char *screen_tty; |
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struct winsize winsize; |
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fno = fileno(stdout); |
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if (!isatty(fno)) { |
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fprintf(stderr, "stdout must be a tty\n"); |
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return 0; |
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} |
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screen_tty = ttyname(fno); |
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#ifdef HAVE_TERMIOS_H |
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GET_TERMIOS(fno, &ttmode); |
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ttmode.c_lflag &= ~ECHO; |
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SET_TERMIOS(fno, &ttmode); |
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#endif |
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infd = fopen(screen_tty, "rw"); |
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#ifdef HAVE_TERMIOS_H |
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fno2 = fileno(infd); |
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GET_TERMIOS(fno2, &ttmode); |
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ttmode.c_lflag &= ~ECHO; |
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SET_TERMIOS(fno2, &ttmode); |
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#endif |
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/* query rxvt to find if graphics are available */ |
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fflush(stdout); |
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printf("\033GQ"); |
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fflush(stdout); |
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while (1) { |
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if ((fgets(line, LINESZ, infd) != NULL) && |
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(sscanf(line, "\033G%d", &i) == 1)) { |
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if (!i) { |
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fprintf(stderr, "rxvt graphics not available\n"); |
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CloseGraphics(); |
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return 0; |
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} |
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break; |
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} |
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} |
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if (scroll_text_up) { |
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ioctl(fno, TIOCGWINSZ, &winsize); |
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fflush(stdout); |
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for (i = 0; i < winsize.ws_row; i++) |
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putchar('\n'); |
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fflush(stdout); |
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} |
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return i; |
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} |
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void |
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CloseGraphics(void) |
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{ |
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DefaultRendition(); |
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fflush(stdout); |
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#ifdef HAVE_TERMIOS_H |
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ttmode.c_lflag |= ECHO; |
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SET_TERMIOS(fno2, &ttmode); |
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#endif |
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fclose(infd); |
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} |
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/*----------------------- end-of-file (C source) -----------------------*/ |
