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1.1 ! root 1: #ifndef lint ! 2: static char sccsid[] = "@(#)wwsize.c 3.3 4/24/85"; ! 3: #endif ! 4: ! 5: /* ! 6: * Copyright (c) 1983 Regents of the University of California, ! 7: * All rights reserved. Redistribution permitted subject to ! 8: * the terms of the Berkeley Software License Agreement. ! 9: */ ! 10: ! 11: #include "ww.h" ! 12: ! 13: /* ! 14: * Resize a window. Should be unattached. ! 15: */ ! 16: wwsize(w, nrow, ncol) ! 17: register struct ww *w; ! 18: { ! 19: register i, j; ! 20: int nline; ! 21: union ww_char **buf = 0; ! 22: char **win = 0; ! 23: short *nvis = 0; ! 24: char **fmap = 0; ! 25: char m; ! 26: ! 27: /* ! 28: * First allocate new buffers. ! 29: */ ! 30: win = wwalloc(w->ww_w.t, w->ww_w.l, nrow, ncol, sizeof (char)); ! 31: if (win == 0) ! 32: goto bad; ! 33: if (w->ww_fmap != 0) { ! 34: fmap = wwalloc(w->ww_w.t, w->ww_w.l, nrow, ncol, sizeof (char)); ! 35: if (fmap == 0) ! 36: goto bad; ! 37: } ! 38: if (nrow > w->ww_b.nr || ncol > w->ww_b.nc) { ! 39: nline = MAX(w->ww_b.nr, nrow); ! 40: buf = (union ww_char **) wwalloc(w->ww_b.t, w->ww_b.l, ! 41: nline, ncol, sizeof (union ww_char)); ! 42: if (buf == 0) ! 43: goto bad; ! 44: } ! 45: nvis = (short *)malloc((unsigned) nrow * sizeof (short)); ! 46: if (nvis == 0) { ! 47: wwerrno = WWE_NOMEM; ! 48: goto bad; ! 49: } ! 50: nvis -= w->ww_w.t; ! 51: /* ! 52: * Copy text buffer. ! 53: */ ! 54: if (buf != 0) { ! 55: int b, r; ! 56: ! 57: b = w->ww_b.t + nline; ! 58: r = w->ww_b.l + ncol; ! 59: if (ncol < w->ww_b.nc) ! 60: for (i = w->ww_b.t; i < w->ww_b.b; i++) ! 61: for (j = w->ww_b.l; j < r; j++) ! 62: buf[i][j] = w->ww_buf[i][j]; ! 63: else ! 64: for (i = w->ww_b.t; i < w->ww_b.b; i++) { ! 65: for (j = w->ww_b.l; j < w->ww_b.r; j++) ! 66: buf[i][j] = w->ww_buf[i][j]; ! 67: for (; j < r; j++) ! 68: buf[i][j].c_w = ' '; ! 69: } ! 70: for (; i < b; i++) ! 71: for (j = w->ww_b.l; j < r; j++) ! 72: buf[i][j].c_w = ' '; ! 73: } ! 74: /* ! 75: * Now free the old stuff. ! 76: */ ! 77: wwfree((char **)w->ww_win, w->ww_w.t); ! 78: w->ww_win = win; ! 79: if (buf != 0) { ! 80: wwfree((char **)w->ww_buf, w->ww_b.t); ! 81: w->ww_buf = buf; ! 82: } ! 83: if (w->ww_fmap != 0) { ! 84: wwfree((char **)w->ww_fmap, w->ww_w.t); ! 85: w->ww_fmap = fmap; ! 86: } ! 87: free((char *)(w->ww_nvis + w->ww_w.t)); ! 88: w->ww_nvis = nvis; ! 89: /* ! 90: * Set new sizes. ! 91: */ ! 92: /* window */ ! 93: w->ww_w.b = w->ww_w.t + nrow; ! 94: w->ww_w.r = w->ww_w.l + ncol; ! 95: w->ww_w.nr = nrow; ! 96: w->ww_w.nc = ncol; ! 97: /* text buffer */ ! 98: if (buf != 0) { ! 99: w->ww_b.b = w->ww_b.t + nline; ! 100: w->ww_b.r = w->ww_b.l + ncol; ! 101: w->ww_b.nr = nline; ! 102: w->ww_b.nc = ncol; ! 103: } ! 104: /* scroll */ ! 105: if ((i = w->ww_b.b - w->ww_w.b) < 0 || ! 106: (i = w->ww_cur.r - w->ww_w.b + 1) > 0) { ! 107: w->ww_buf += i; ! 108: w->ww_b.t -= i; ! 109: w->ww_b.b -= i; ! 110: w->ww_cur.r -= i; ! 111: } ! 112: /* interior */ ! 113: w->ww_i.b = MIN(w->ww_w.b, wwnrow); ! 114: w->ww_i.r = MIN(w->ww_w.r, wwncol); ! 115: w->ww_i.nr = w->ww_i.b - w->ww_i.t; ! 116: w->ww_i.nc = w->ww_i.r - w->ww_i.l; ! 117: /* ! 118: * Initialize new buffers. ! 119: */ ! 120: /* window */ ! 121: m = 0; ! 122: if (w->ww_oflags & WWO_GLASS) ! 123: m |= WWM_GLS; ! 124: if (w->ww_oflags & WWO_REVERSE) ! 125: m |= WWM_REV; ! 126: for (i = w->ww_w.t; i < w->ww_w.b; i++) ! 127: for (j = w->ww_w.l; j < w->ww_w.r; j++) ! 128: w->ww_win[i][j] = m; ! 129: /* frame map */ ! 130: if (fmap != 0) ! 131: for (i = w->ww_w.t; i < w->ww_w.b; i++) ! 132: for (j = w->ww_w.l; j < w->ww_w.r; j++) ! 133: w->ww_fmap[i][j] = 0; ! 134: /* visibility */ ! 135: j = m ? 0 : w->ww_w.nc; ! 136: for (i = w->ww_w.t; i < w->ww_w.b; i++) ! 137: w->ww_nvis[i] = j; ! 138: /* ! 139: * Put cursor back. ! 140: */ ! 141: if (w->ww_hascursor) { ! 142: w->ww_hascursor = 0; ! 143: wwcursor(w, 1); ! 144: } ! 145: /* ! 146: * Fool with pty. ! 147: */ ! 148: if (w->ww_ispty && w->ww_pty >= 0) { ! 149: struct winsize winsize; ! 150: ! 151: winsize.ws_row = nrow; ! 152: winsize.ws_col = ncol; ! 153: winsize.ws_xpixel = winsize.ws_ypixel = 0; ! 154: (void) ioctl(w->ww_pty, (int)TIOCSWINSZ, (char *)&winsize); ! 155: } ! 156: return 0; ! 157: bad: ! 158: if (win != 0) ! 159: wwfree(win, w->ww_w.t); ! 160: if (fmap != 0) ! 161: wwfree(fmap, w->ww_w.t); ! 162: if (buf != 0) ! 163: wwfree((char **)buf, w->ww_b.t); ! 164: if (nvis != 0) ! 165: free((char *)(nvis + w->ww_w.t)); ! 166: return -1; ! 167: }
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