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1.1 ! root 1: /* ! 2: * Copyright (c) 1983 Regents of the University of California. ! 3: * All rights reserved. ! 4: * ! 5: * Redistribution and use in source and binary forms are permitted ! 6: * provided that the above copyright notice and this paragraph are ! 7: * duplicated in all such forms and that any documentation, ! 8: * advertising materials, and other materials related to such ! 9: * distribution and use acknowledge that the software was developed ! 10: * by the University of California, Berkeley. The name of the ! 11: * University may not be used to endorse or promote products derived ! 12: * from this software without specific prior written permission. ! 13: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR ! 14: * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED ! 15: * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. ! 16: */ ! 17: ! 18: #ifndef lint ! 19: static char sccsid[] = "@(#)wwsize.c 3.6 (Berkeley) 6/29/88"; ! 20: #endif /* not lint */ ! 21: ! 22: #include "ww.h" ! 23: ! 24: /* ! 25: * Resize a window. Should be unattached. ! 26: */ ! 27: wwsize(w, nrow, ncol) ! 28: register struct ww *w; ! 29: { ! 30: register i, j; ! 31: int nline; ! 32: union ww_char **buf = 0; ! 33: char **win = 0; ! 34: short *nvis = 0; ! 35: char **fmap = 0; ! 36: char m; ! 37: ! 38: /* ! 39: * First allocate new buffers. ! 40: */ ! 41: win = wwalloc(w->ww_w.t, w->ww_w.l, nrow, ncol, sizeof (char)); ! 42: if (win == 0) ! 43: goto bad; ! 44: if (w->ww_fmap != 0) { ! 45: fmap = wwalloc(w->ww_w.t, w->ww_w.l, nrow, ncol, sizeof (char)); ! 46: if (fmap == 0) ! 47: goto bad; ! 48: } ! 49: if (nrow > w->ww_b.nr || ncol > w->ww_b.nc) { ! 50: nline = MAX(w->ww_b.nr, nrow); ! 51: buf = (union ww_char **) wwalloc(w->ww_b.t, w->ww_b.l, ! 52: nline, ncol, sizeof (union ww_char)); ! 53: if (buf == 0) ! 54: goto bad; ! 55: } ! 56: nvis = (short *)malloc((unsigned) nrow * sizeof (short)); ! 57: if (nvis == 0) { ! 58: wwerrno = WWE_NOMEM; ! 59: goto bad; ! 60: } ! 61: nvis -= w->ww_w.t; ! 62: /* ! 63: * Copy text buffer. ! 64: */ ! 65: if (buf != 0) { ! 66: int b, r; ! 67: ! 68: b = w->ww_b.t + nline; ! 69: r = w->ww_b.l + ncol; ! 70: if (ncol < w->ww_b.nc) ! 71: for (i = w->ww_b.t; i < w->ww_b.b; i++) ! 72: for (j = w->ww_b.l; j < r; j++) ! 73: buf[i][j] = w->ww_buf[i][j]; ! 74: else ! 75: for (i = w->ww_b.t; i < w->ww_b.b; i++) { ! 76: for (j = w->ww_b.l; j < w->ww_b.r; j++) ! 77: buf[i][j] = w->ww_buf[i][j]; ! 78: for (; j < r; j++) ! 79: buf[i][j].c_w = ' '; ! 80: } ! 81: for (; i < b; i++) ! 82: for (j = w->ww_b.l; j < r; j++) ! 83: buf[i][j].c_w = ' '; ! 84: } ! 85: /* ! 86: * Now free the old stuff. ! 87: */ ! 88: wwfree((char **)w->ww_win, w->ww_w.t); ! 89: w->ww_win = win; ! 90: if (buf != 0) { ! 91: wwfree((char **)w->ww_buf, w->ww_b.t); ! 92: w->ww_buf = buf; ! 93: } ! 94: if (w->ww_fmap != 0) { ! 95: wwfree((char **)w->ww_fmap, w->ww_w.t); ! 96: w->ww_fmap = fmap; ! 97: } ! 98: free((char *)(w->ww_nvis + w->ww_w.t)); ! 99: w->ww_nvis = nvis; ! 100: /* ! 101: * Set new sizes. ! 102: */ ! 103: /* window */ ! 104: w->ww_w.b = w->ww_w.t + nrow; ! 105: w->ww_w.r = w->ww_w.l + ncol; ! 106: w->ww_w.nr = nrow; ! 107: w->ww_w.nc = ncol; ! 108: /* text buffer */ ! 109: if (buf != 0) { ! 110: w->ww_b.b = w->ww_b.t + nline; ! 111: w->ww_b.r = w->ww_b.l + ncol; ! 112: w->ww_b.nr = nline; ! 113: w->ww_b.nc = ncol; ! 114: } ! 115: /* scroll */ ! 116: if ((i = w->ww_b.b - w->ww_w.b) < 0 || ! 117: (i = w->ww_cur.r - w->ww_w.b + 1) > 0) { ! 118: w->ww_buf += i; ! 119: w->ww_b.t -= i; ! 120: w->ww_b.b -= i; ! 121: w->ww_cur.r -= i; ! 122: } ! 123: /* interior */ ! 124: w->ww_i.b = MIN(w->ww_w.b, wwnrow); ! 125: w->ww_i.r = MIN(w->ww_w.r, wwncol); ! 126: w->ww_i.nr = w->ww_i.b - w->ww_i.t; ! 127: w->ww_i.nc = w->ww_i.r - w->ww_i.l; ! 128: /* ! 129: * Initialize new buffers. ! 130: */ ! 131: /* window */ ! 132: m = 0; ! 133: if (w->ww_oflags & WWO_GLASS) ! 134: m |= WWM_GLS; ! 135: if (w->ww_oflags & WWO_REVERSE) ! 136: m |= WWM_REV; ! 137: for (i = w->ww_w.t; i < w->ww_w.b; i++) ! 138: for (j = w->ww_w.l; j < w->ww_w.r; j++) ! 139: w->ww_win[i][j] = m; ! 140: /* frame map */ ! 141: if (fmap != 0) ! 142: for (i = w->ww_w.t; i < w->ww_w.b; i++) ! 143: for (j = w->ww_w.l; j < w->ww_w.r; j++) ! 144: w->ww_fmap[i][j] = 0; ! 145: /* visibility */ ! 146: j = m ? 0 : w->ww_w.nc; ! 147: for (i = w->ww_w.t; i < w->ww_w.b; i++) ! 148: w->ww_nvis[i] = j; ! 149: /* ! 150: * Put cursor back. ! 151: */ ! 152: if (w->ww_hascursor) { ! 153: w->ww_hascursor = 0; ! 154: wwcursor(w, 1); ! 155: } ! 156: /* ! 157: * Fool with pty. ! 158: */ ! 159: if (w->ww_ispty && w->ww_pty >= 0) { ! 160: struct winsize winsize; ! 161: ! 162: winsize.ws_row = nrow; ! 163: winsize.ws_col = ncol; ! 164: winsize.ws_xpixel = winsize.ws_ypixel = 0; ! 165: (void) ioctl(w->ww_pty, TIOCSWINSZ, (char *)&winsize); ! 166: } ! 167: return 0; ! 168: bad: ! 169: if (win != 0) ! 170: wwfree(win, w->ww_w.t); ! 171: if (fmap != 0) ! 172: wwfree(fmap, w->ww_w.t); ! 173: if (buf != 0) ! 174: wwfree((char **)buf, w->ww_b.t); ! 175: if (nvis != 0) ! 176: free((char *)(nvis + w->ww_w.t)); ! 177: return -1; ! 178: }
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