1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068 2069 2070 2071 2072 2073 2074 2075 2076 2077 2078 2079 2080 2081 2082 2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100 2101 2102 2103 2104 2105 2106 2107 2108 2109 2110 2111 2112 2113 2114 2115 2116 2117 2118 2119 2120 2121 2122 2123 2124 2125 2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146 2147 2148 2149 2150 2151 2152 2153 2154 2155 2156 2157 2158 2159 2160 2161 2162 2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 2175 2176 2177 2178 2179 2180 2181 2182 2183 2184 2185 2186 2187 2188 2189 2190 2191 2192 2193 2194 2195 2196 2197 2198 2199 2200 2201 2202 2203 2204 2205 2206 2207 2208 2209 2210 2211 2212 2213 2214 2215 2216 2217 2218 2219 2220 2221 2222 2223 2224 2225 2226 2227 2228 2229 2230 2231 2232 2233 2234 2235 2236 2237 2238 2239 2240 2241 2242 2243 2244 2245 2246 2247 2248 2249 2250 2251 2252 2253 2254 2255 2256 2257 2258 2259 2260 2261 2262 2263 2264 2265 2266 2267 2268 2269 2270 2271 2272 2273 2274 2275 2276 2277 2278 2279 2280 2281 2282 2283 2284
|
/* Hello, Emacs, this is -*-C-*-
* $Id: tkcanvas.trm,v 1.28.8.2 2016/02/04 07:16:46 sfeam Exp $
*
*/
/* GNUPLOT - tkcanvas.trm */
/*[
* Copyright 1990 - 1993, 1998, 2004, 2014
*
* Permission to use, copy, and distribute this software and its
* documentation for any purpose with or without fee is hereby granted,
* provided that the above copyright notice appear in all copies and
* that both that copyright notice and this permission notice appear
* in supporting documentation.
*
* Permission to modify the software is granted, but not the right to
* distribute the complete modified source code. Modifications are to
* be distributed as patches to the released version. Permission to
* distribute binaries produced by compiling modified sources is granted,
* provided you
* 1. distribute the corresponding source modifications from the
* released version in the form of a patch file along with the binaries,
* 2. add special version identification to distinguish your version
* in addition to the base release version number,
* 3. provide your name and address as the primary contact for the
* support of your modified version, and
* 4. retain our contact information in regard to use of the base
* software.
* Permission to distribute the released version of the source code along
* with corresponding source modifications in the form of a patch file is
* granted with same provisions 2 through 4 for binary distributions.
*
* This software is provided "as is" without express or implied warranty
* to the extent permitted by applicable law.
]*/
/*
* This file is included by ../term.c.
*
* This terminal driver supports:
* Tk canvas widgets under several scripting languages
* (currently Tcl, Perl/Tk, Perl/Tkx, Python, Ruby, Rexx)
*
* AUTHORS and HISTORY:
* original dxy.trm by Martin Yii, eln557h@monu3.OZ
* Further modified Jan 1990 by Russell Lang, rjl@monu1.cc.monash.oz
*
* port to the Tk/Tcl canvas widget
* D. Jeff Dionne, July 1995 jeff@ryeham.ee.ryerson.ca
* Alex Woo, woo@playfair.stanford.edu
*
* adapted to the new terminal layout by Alex Woo (Sept. 1996)
*
* extended interactive Tk/Tcl capabilities
* Thomas Sefzick, March 1999, t.sefzick@fz-juelich.de
*
* added the perltk.trm code written by Slaven Rezic <eserte@cs.tu-berlin.de>.
* 'linewidth' and 'justify text' added, ends of plotted lines are now rounded.
* Thomas Sefzick, May 1999, t.sefzick@fz-juelich.de
*
* scale plot to fit into the actual size of the canvas as reported by
* the window manager (the canvas itself doesn't report its real size).
* Matt Willis, October 1999, mattbwillis@my-deja.com
*
* cleaned up and generalized in order to accomodate an increasing
* number of scripting languages; added support for Python and Ruby.
* based on a patch dated October 2002.
* Joachim Wuttke, November 2014, jwuttke@users.sourceforge.net
*
* Add support for Perl/Tkx and Rexx.
* Add support for rgb and palette color, filled boxes and polygons,
* rotated text, (custom) dashed lines, background colour, closed paths,
* rounded or butt line ends, Tk-arrows, optimized drawing of lines,
* boxed text and bold and italic text. Add 'size' option to give the
* code a hint of proper tic and font sizes. Add 'standalone' option to
* create self-contained scripts. Add support for enhanced text and
* external images for Tcl only.
* Bastian Maerkisch, December 2014, bmaerkisch@web.de
*
* BUGS or MISSING FEATURES:
* - enhanced text only for Tcl
* - option to change function name (multiple plots)
* - layer actions by adding tags to items
* - hypertext and image are missing
* - transparency is not possible
* - text encoding setting is ignored, we always use the system's default
* - The "interactive" mode has several issues:
* - The optimised line drawing, which merges adjacent segments into one
* path, renders the 'interactive mode' pretty useless.
* - It is not (yet) implemented at all for Python/Tkinter and Rexx/Tk.
* - Ruby/Tkinter: no support for user_gnuplot_coordinates().
* - gnuplot_xy:
* the definition (with 12 input and 4 output coordinates) is clumsy,
* and the implementation is unelegant.
* - we don't take advantage of object orientation; our Ruby code looks
* like an almost literal translation from Tcl (because that's what it is).
* - no support for Lua/Tk
*/
#include "driver.h"
#ifdef TERM_REGISTER
register_term(tkcanvas)
#endif
#ifdef TERM_PROTO
TERM_PUBLIC void TK_options __PROTO((void));
TERM_PUBLIC void TK_init __PROTO((void));
TERM_PUBLIC void TK_graphics __PROTO((void));
TERM_PUBLIC void TK_text __PROTO((void));
TERM_PUBLIC void TK_linetype __PROTO((int linetype));
TERM_PUBLIC void TK_move __PROTO((unsigned int x, unsigned int y));
TERM_PUBLIC void TK_vector __PROTO((unsigned int x, unsigned int y));
TERM_PUBLIC int TK_text_angle(int ang);
TERM_PUBLIC void TK_put_text(unsigned int x, unsigned int y, const char *str);
TERM_PUBLIC void TK_reset(void);
TERM_PUBLIC int TK_justify_text(enum JUSTIFY);
TERM_PUBLIC void TK_point(unsigned int, unsigned int, int);
TERM_PUBLIC void TK_arrow(unsigned int, unsigned int, unsigned int, unsigned int, int);
TERM_PUBLIC int TK_set_font(const char *font);
TERM_PUBLIC void TK_enhanced_open(char * fontname, double fontsize,
double base, TBOOLEAN widthflag, TBOOLEAN showflag, int overprint);
TERM_PUBLIC void TK_enhanced_flush(void);
TERM_PUBLIC void TK_linewidth(double linewidth);
TERM_PUBLIC int TK_make_palette(t_sm_palette *palette);
TERM_PUBLIC void TK_color(t_colorspec *colorspec);
TERM_PUBLIC void TK_fillbox(int style, unsigned int x, unsigned int y, unsigned int w, unsigned int h);
TERM_PUBLIC void TK_filled_polygon(int points, gpiPoint *corners);
#ifdef WRITE_PNG_IMAGE
TERM_PUBLIC void TK_image(unsigned m, unsigned n, coordval *image, gpiPoint *corner, t_imagecolor color_mode);
#endif
TERM_PUBLIC void TK_dashtype(int dt, t_dashtype *custom_dash_pattern);
#ifdef EAM_BOXED_TEXT
TERM_PUBLIC void TK_boxed_text(unsigned int x, unsigned int y, int option);
#endif
/* nominal canvas size */
#define TK_XMAX 1000
#define TK_YMAX 1000
/* char size and tic sizes in pixels */
#define TK_VCHAR 14 /* height of characters */
#define TK_HCHAR 6 /* width of characters including spacing */
#define TK_VTIC 8
#define TK_HTIC 8
#endif /* TERM_PROTO */
#ifndef TERM_PROTO_ONLY
#ifdef TERM_BODY
/* FIXME HBB 20000725: This needs to be fixed. As is, this driver causes
* the terminal layer to depend on several other core modules. Th is a
* design bug. "term" is supposed a 'frontier' layer: it should not be
* dependent on any other code inside gnuplot */
#include "axis.h" /* axis_array */
#include "gadgets.h" /* is_3d_plot, plot_bounds */
/* text, font */
static int tk_angle = 0;
static char tk_anchor[7] = "w";
static enum JUSTIFY tk_justify;
static TBOOLEAN tk_next_text_use_font = FALSE;
static TBOOLEAN tk_boxed = FALSE;
/* enhanced text */
static TBOOLEAN tk_enhanced_opened_string = FALSE;
static TBOOLEAN tk_enhanced_show = FALSE;
static int tk_enhanced_base = 0;
static int tk_enhanced_overprint = 0;
static TBOOLEAN tk_enhanced_widthflag = FALSE;
/* vectors, polygons, paths */
static TBOOLEAN tk_rounded = FALSE;
static double tk_linewidth = 1.0;
static int tk_lastx = 0;
static int tk_lasty = 0;
static TBOOLEAN tk_in_path = FALSE;
static int * tk_path_x = NULL;
static int * tk_path_y = NULL;
static int tk_maxpath = 0;
static int tk_polygon_points = 0;
static char tk_dashpattern[3*DASHPATTERN_LENGTH];
static const char * tk_dashtypes[] = {
"", "1 1", "", "3 1", "2 2", "3 1 1 1", "3 1 1 1 1 1"
};
/* color */
static const char * tk_colors[] = {
"black", "gray", "red", "green", "blue", "magenta", "cyan", "brown"
};
static char tk_color[20] = "black";
static char tk_background[20] = "";
static char * tk_background_opt = NULL;
/* other options */
static TBOOLEAN tk_interactive = FALSE;
static TBOOLEAN tk_standalone = FALSE;
static int tk_width = 800;
static int tk_height = 600;
/* images */
static int tk_image_counter = 0;
/* prototypes of local functions */
static void TK_put_noenhanced_text(unsigned int x, unsigned int y, const char *str);
static void TK_put_enhanced_text(unsigned int x, unsigned int y, const char *str);
static void TK_rectangle(int x1, int y1, int x2, int y2, char * color, char * stipple);
static void TK_add_path_point(int x, int y); /* add a new point to current path or line */
static void TK_flush_line(); /* finish a poly-line */
enum TK_id {
/* languages first (order is important as it is used as index!) */
TK_LANG_TCL=0, TK_LANG_PERL, TK_LANG_PYTHON, TK_LANG_RUBY, TK_LANG_REXX,
TK_LANG_PERLTKX, TK_LANG_MAX,
/* other options */
TK_INTERACTIVE, TK_STANDALONE, TK_INPUT,
TK_NOROTTEXT, TK_ROTTEXT, TK_BACKGROUND, TK_NOBACKGROUND,
TK_ROUNDED, TK_BUTT, TK_SIZE, TK_ENHANCED, TK_NOENHANCED,
TK_PIXELS, TK_EXTERNALIMAGES, TK_INLINEIMAGES,
TK_OTHER
};
static int tk_script_language = TK_LANG_TCL;
static char *tk_script_languages[TK_LANG_MAX] = {
"tcl", "perl", "python", "ruby", "rexx", "perltkx"
};
static struct gen_table TK_opts[] =
{
{ "t$cl", TK_LANG_TCL },
{ "pe$rltk", TK_LANG_PERL },
{ "perltkx", TK_LANG_PERLTKX },
{ "tkx", TK_LANG_PERLTKX },
{ "py$thontkinter", TK_LANG_PYTHON },
{ "ru$bytkinter", TK_LANG_RUBY },
{ "re$xxtk", TK_LANG_REXX },
{ "int$eractive", TK_INTERACTIVE },
{ "inp$ut", TK_INPUT },
{ "stand$alone", TK_STANDALONE },
{ "nor$ottext", TK_NOROTTEXT },
{ "rot$text", TK_ROTTEXT },
{ "backg$round", TK_BACKGROUND },
{ "noback$ground", TK_NOBACKGROUND },
{ "round$ed", TK_ROUNDED },
{ "butt", TK_BUTT },
{ "size", TK_SIZE },
{ "enh$anced", TK_ENHANCED },
{ "noenh$anced", TK_NOENHANCED },
{ "pix$els", TK_PIXELS },
{ "inl$ineimages", TK_INLINEIMAGES },
{ "ext$ernalimages", TK_EXTERNALIMAGES },
{ NULL, TK_OTHER }
};
TERM_PUBLIC void
TK_options()
{
int cmd;
tk_interactive = FALSE;
while (!END_OF_COMMAND) {
switch (cmd = lookup_table(&TK_opts[0], c_token)) {
case TK_LANG_TCL:
case TK_LANG_PERL:
case TK_LANG_PERLTKX:
case TK_LANG_RUBY:
case TK_LANG_PYTHON:
case TK_LANG_REXX:
tk_script_language = cmd;
c_token++;
break;
case TK_INTERACTIVE:
tk_interactive = TRUE;
c_token++;
break;
case TK_INPUT:
tk_standalone = FALSE;
c_token++;
break;
case TK_STANDALONE:
tk_standalone = TRUE;
c_token++;
break;
case TK_NOROTTEXT:
term->text_angle = null_text_angle;
c_token++;
break;
case TK_ROTTEXT:
term->text_angle = TK_text_angle;
c_token++;
break;
case TK_BACKGROUND: {
long rgb;
int red, green, blue;
c_token++;
rgb = parse_color_name();
free(tk_background_opt);
tk_background_opt = NULL;
m_capture(&tk_background_opt, c_token-1, c_token);
red = (rgb >> 16) & 0xff;
green = (rgb >> 8) & 0xff;
blue = (rgb ) & 0xff;
snprintf(tk_background, sizeof(tk_background), "#%02x%02x%02x", red, green, blue);
break;
}
case TK_NOBACKGROUND:
tk_background[0] = NUL;
free(tk_background_opt);
tk_background_opt = NULL;
c_token++;
break;
case TK_ROUNDED:
tk_rounded = TRUE;
c_token++;
break;
case TK_BUTT:
tk_rounded = FALSE;
c_token++;
break;
case TK_SIZE: {
c_token++;
if (END_OF_COMMAND)
int_error(c_token, "size requires 'width,heigth'");
tk_width = real_expression();
if (!equals(c_token++, ","))
int_error(c_token, "size requires 'width,heigth'");
tk_height = real_expression();
if (tk_width < 1 || tk_height < 1)
int_error(c_token, "size is out of range");
break;
}
case TK_ENHANCED:
c_token++;
term->flags |= TERM_ENHANCED_TEXT;
break;
case TK_NOENHANCED:
c_token++;
term->flags &= ~TERM_ENHANCED_TEXT;
break;
case TK_PIXELS:
c_token++;
term->image = NULL;
break;
case TK_INLINEIMAGES:
case TK_EXTERNALIMAGES:
c_token++;
term->image = TK_image;
break;
case TK_OTHER:
default:
c_token++;
int_error(c_token, "unknown option");
break;
}
}
/* calculate the proper tic sizes and character size */
term->h_char = TK_HCHAR * TK_XMAX / (double) tk_width + 0.5;
term->h_tic = TK_HTIC * TK_XMAX / (double) tk_width + 0.5;
term->v_char = TK_VCHAR * TK_YMAX / (double) tk_height + 0.5;
term->v_tic = TK_VTIC * TK_YMAX / (double) tk_height + 0.5;
/* FIXME: image support only available for Tcl */
if ((term->image != NULL) && (tk_script_language != TK_LANG_TCL))
term->image = NULL;
/* FIXME: enhanced text only available for Tcl */
if ((term->flags & TERM_ENHANCED_TEXT) && (tk_script_language != TK_LANG_TCL))
term->flags &= ~TERM_ENHANCED_TEXT;
sprintf(term_options, "%s%s %s %s%s %s %s %s size %d,%d",
tk_script_languages[tk_script_language],
tk_interactive ? " interactive" : "",
tk_standalone ? "standalone" : "input",
(tk_background[0] == NUL) ? "nobackground " : "background ",
(tk_background[0] == NUL) ? "" : tk_background_opt,
tk_rounded ? "rounded" : "butt",
term->text_angle == null_text_angle ? "norottext" : "rottext",
term->image == NULL ? "pixels" : "externalimages",
tk_width, tk_height);
}
TERM_PUBLIC void
TK_init()
{
tk_image_counter = 0;
}
static char *tk_standalone_init[TK_LANG_MAX] = {
/* Tcl */
"canvas .c -width %d -height %d\n"
"pack .c\n"
"gnuplot .c\n\n",
/* Perl */
"use Tk;\n"
"my $top = MainWindow->new;\n"
"my $c = $top->Canvas(-width => %d, -height => %d)->pack;\n"
"gnuplot($c);\n"
"MainLoop;\n",
/* Python */
"from tkinter import *\n"
"from tkinter import font\n"
"root = Tk()\n"
"c = Canvas(root, width=%d, height=%d)\n"
"c.pack()\n"
"gnuplot(c)\n"
"root.mainloop()\n",
/* Ruby */
"require 'tk'\n"
"root = TkRoot.new { title 'Ruby/Tk' }\n"
"c = TkCanvas.new(root, 'width'=>%d, 'height'=>%d) { pack { } }\n"
"gnuplot(c)\n"
"Tk.mainloop\n",
/* Rexx */
"/**/\n"
"call RxFuncAdd 'TkLoadFuncs', 'rexxtk', 'TkLoadFuncs'\n"
"call TkLoadFuncs\n"
"cv = TkCanvas('.c', '-width', %d, '-height', %d)\n"
"call TkPack cv\n"
"call gnuplot cv\n"
"do forever\n"
" interpret 'call' TkWait()\n"
"end\n"
"return 0\n\n"
"exit:\nquit:\n"
"call TkDropFuncs\n"
"exit 0\n",
/* Perl/Tkx */
"use Tkx;\n"
"my $top = Tkx::widget->new(\".\");\n"
"my $c = $top->new_tk__canvas(-width => %d, -height => %d);\n"
"$c->g_pack;\n"
"gnuplot($c);\n"
"Tkx::MainLoop();\n"
};
static char *tk_init_gnuplot[TK_LANG_MAX] = {
/* Tcl */
"proc %s cv {\n"
" $cv delete all\n"
" set cmx [expr\\\n"
" [winfo width $cv]-2*[$cv cget -border]"
"-2*[$cv cget -highlightthickness]]\n"
" if {$cmx <= 1} {set cmx [$cv cget -width]}\n"
" set cmy [expr\\\n"
" [winfo height $cv]-2*[$cv cget -border]"
"-2*[$cv cget -highlightthickness]]\n"
" if {$cmy <= 1} {set cmy [$cv cget -height]}\n",
/* Perl */
"sub %s {\n"
" my($cv) = @_;\n"
" $cv->delete('all');\n"
" my $cmx = $cv->width - 2 * $cv->cget(-border)\n"
" - 2 * $cv->cget(-highlightthickness);\n"
" if ($cmx <= 1) {\n"
" $cmx = ($cv->cget(-width));\n"
" }\n"
" my $cmy = $cv->height - 2 * $cv->cget(-border)\n"
" - 2 * $cv->cget(-highlightthickness);\n"
" if ($cmy <= 1) {\n"
" $cmy = ($cv->cget(-height));\n"
" }\n",
/* Python */
"def %s (cv):\n"
"\tcv.delete('all')\n"
"\tcmdelta = 2*(int(cv.cget('border'))+"
"int(cv.cget('highlightthickness')))\n"
"\tcmx = int(cv.cget('width'))-cmdelta\n"
"\tif (cmx<=1):\n\t\tcmx = int(cv.cget('width'))\n"
"\tcmy = int(cv.cget('height'))-cmdelta\n"
"\tif (cmy<=1):\n\t\tcmy = int(cv.cget('height'))\n"
"",
/* Ruby (below, we NEED the blank in "- 2" !)*/
"def %s(cv)\n"
" cv.delete('all')\n"
" cmx = cv.width - 2*cv.cget('border') - 2*cv.cget('highlightthickness')\n"
" cmx = cvcget.width if (cmx <= 1)\n"
" cmy = cv.height - 2*cv.cget('border') - 2*cv.cget('highlightthickness')\n"
" cmy = cvcget.height if (cmy <= 1)\n"
"",
/* Rexx */
"/**/\n"
"call %s arg(1)\n"
"return 0\n\n"
"%s: procedure\n"
" cv = arg(1)\n"
" call TkCanvasDelete cv,'all'\n"
" cmx = TkCget(cv,'-width') - 2*TkCget(cv,'-border') - 2*TkCget(cv,'-highlightthickness')\n"
" if cmx <= 1 then; cmx = TkCget(cv,'-width')\n"
" cmy = TkCget(cv,'-height') - 2*TkCget(cv,'-border') - 2*TkCget(cv,'-highlightthickness')\n"
" if cmy <= 1 then; cmy = TkCget(cv,'-height')\n"
"\n",
/* Perl/Tkx */
"sub %s {\n"
" my($cv) = @_;\n"
" $cv->delete('all');\n"
" my $cmx = $cv->get_width - 2 * $cv->cget(-border)\n"
" - 2 * $cv->cget(-highlightthickness);\n"
" if ($cmx <= 1) {\n"
" $cmx = ($cv->cget(-width));\n"
" }\n"
" my $cmy = $cv->get_height - 2 * $cv->cget(-border)\n"
" - 2 * $cv->cget(-highlightthickness);\n"
" if ($cmy <= 1) {\n"
" $cmy = ($cv->cget(-height));\n"
" }\n"
};
static char *tk_set_background[TK_LANG_MAX] = {
/* Tcl */
" $cv configure -bg %s\n",
/* Perl */
" $cv->configure(-bg => q{%s});\n",
/* Python */
"\tcv.configure(bg='%s')\n",
/* Ruby */
" cv.configure('bg'=>'%s')\n",
/* Rexx */
" call TkConfigure cv, '-bg', '%s'\n",
/* Perl/Tkx */
" $cv->configure(-bg => q{%s});\n"
};
TERM_PUBLIC void
TK_graphics()
{
/*
* Here we start the definition of the `gnuplot` procedure.
* The resulting script code takes the actual width and height
* of the defined canvas and scales the plot to fit.
* You can tune the output for a particular size of the canvas by
* using the `size` option.
*/
char * tk_function = "gnuplot";
/* Reset to start of output file. If the user mistakenly tries to */
/* plot again into the same file, it will overwrite the original */
/* rather than corrupting it. */
fseek(gpoutfile, 0L, SEEK_SET);
fflush(gpoutfile);
ftruncate(fileno(gpoutfile), (off_t)0);
if (!tk_standalone &&
((tk_script_language == TK_LANG_PERL) || (tk_script_language == TK_LANG_PERLTKX)))
tk_function = "";
if (tk_standalone && (tk_script_language == TK_LANG_REXX))
fprintf(gpoutfile, tk_standalone_init[tk_script_language], tk_width, tk_height);
fprintf(gpoutfile, tk_init_gnuplot[tk_script_language], tk_function, tk_function);
tk_angle = tk_lastx = tk_lasty = 0;
safe_strncpy(tk_color, tk_colors[0], sizeof(tk_color));
/* set background */
if (tk_background[0] != NUL) {
//TK_rectangle(0, 0, TK_XMAX, TK_YMAX, tk_background, "");
fprintf(gpoutfile, tk_set_background[tk_script_language], tk_background);
}
}
TERM_PUBLIC void
TK_reset()
{
free(tk_path_x);
free(tk_path_y);
tk_path_x = tk_path_y = NULL;
tk_polygon_points = tk_maxpath = 0;
}
TERM_PUBLIC void
TK_linetype(int linetype)
{
t_colorspec colorspec;
colorspec.type = TC_LT;
colorspec.lt = linetype;
TK_color(&colorspec);
TK_dashtype(DASHTYPE_SOLID, NULL);
}
TERM_PUBLIC int
TK_make_palette(t_sm_palette *palette)
{
return 0; /* we can do RGB colors */
}
TERM_PUBLIC void
TK_color(t_colorspec *colorspec)
{
char tmp_color[20];
safe_strncpy(tmp_color, tk_color, sizeof(tmp_color));
switch (colorspec->type) {
case TC_LT: {
int linetype = colorspec->lt;
char * color = NULL;
if (linetype == LT_BACKGROUND)
color = (tk_background[0] != NUL) ? tk_background : "white";
if (linetype == LT_NODRAW)
color = "";
if (color == NULL) {
if (linetype < LT_BLACK)
linetype = LT_BLACK;
color = (char *) tk_colors[(linetype + 2) % 8];
}
safe_strncpy(tmp_color, color, sizeof(tmp_color));
break;
}
case TC_FRAC: {
rgb255_color rgb255;
/* Immediately translate palette index to RGB colour */
rgb255maxcolors_from_gray(colorspec->value, &rgb255);
snprintf(tmp_color, sizeof(tmp_color), "#%02x%02x%02x", rgb255.r, rgb255.g, rgb255.b);
break;
}
case TC_RGB: {
int red, green, blue;
red = (colorspec->lt >> 16) & 0xff;
green = (colorspec->lt >> 8) & 0xff;
blue = (colorspec->lt) & 0xff;
snprintf(tmp_color, sizeof(tk_color), "#%02x%02x%02x", red, green, blue);
break;
}
}
if (strcmp(tk_color, tmp_color) != 0) {
TK_flush_line();
safe_strncpy(tk_color, tmp_color, sizeof(tk_color));
}
}
TERM_PUBLIC void
TK_linewidth(double linewidth)
{
if (fabs(tk_linewidth - linewidth) > FLT_EPSILON)
TK_flush_line();
tk_linewidth = linewidth;
}
TERM_PUBLIC void
TK_dashtype(int dt, t_dashtype *custom_dash_pattern)
{
int i;
char tmp_dashpattern[3*DASHPATTERN_LENGTH];
TBOOLEAN preserve = FALSE;
if (dt >= 0) {
// {PS_SOLID, PS_DASH, PS_DOT, PS_DASHDOT, PS_DASHDOTDOT};
dt %= 5;
dt += 2;
strcpy(tmp_dashpattern, tk_dashtypes[dt]);
} else if (dt == DASHTYPE_SOLID) {
tmp_dashpattern[0] = NUL;
} else if (dt == DASHTYPE_AXIS) {
strcpy(tmp_dashpattern, tk_dashtypes[1]);
} else if (dt == DASHTYPE_CUSTOM) {
if (custom_dash_pattern->dstring != NULL) {
/* Tk and gnuplot support the very same dash pattern syntax. */
strncpy(tmp_dashpattern, custom_dash_pattern->dstring, sizeof(tmp_dashpattern));
preserve = TRUE; /* do not change pattern */
} else {
tmp_dashpattern[0] = NUL;
for (i = 0; (i < DASHPATTERN_LENGTH/2) && (fabs(custom_dash_pattern->pattern[2*i]) > FLT_EPSILON); i++) {
char buf[32];
snprintf(buf, sizeof(buf), "%d %d ",
(int) (custom_dash_pattern->pattern[2*i] * tk_linewidth),
(int) (custom_dash_pattern->pattern[2*i + 1] * tk_linewidth));
strncat(tmp_dashpattern, buf, sizeof(tmp_dashpattern) - strlen(tmp_dashpattern));
}
tmp_dashpattern[strlen(tmp_dashpattern) - 1] = NUL;
}
}
if ((tk_script_language == TK_LANG_PYTHON) && !preserve) {
for (i = 0; tmp_dashpattern[i] != NUL; i++)
if (tmp_dashpattern[i] == ' ')
tmp_dashpattern[i] = ',';
}
if (strcmp(tk_dashpattern, tmp_dashpattern) != 0) {
TK_flush_line();
safe_strncpy(tk_dashpattern, tmp_dashpattern, sizeof(tk_dashpattern));
}
}
TERM_PUBLIC void
TK_move(unsigned int x, unsigned int y)
{
/* terminate current path if we move to a disconnected position */
if (tk_polygon_points > 0) {
if ((tk_path_x[tk_polygon_points - 1] != x) ||
(tk_path_y[tk_polygon_points - 1] != TK_YMAX - y))
TK_flush_line();
else
return;
}
TK_add_path_point(x, TK_YMAX - y);
tk_lastx = x;
tk_lasty = TK_YMAX - y;
}
/* FIXME HBB 20000725: should use AXIS_UNDO_LOG() macro... */
#define TK_REAL_VALUE(value,axis) \
(axis_array[axis].log) \
? pow(axis_array[axis].base, axis_array[axis].min \
+ value*(axis_array[axis].max-axis_array[axis].min)) \
: axis_array[axis].min \
+ value*(axis_array[axis].max-axis_array[axis].min)
#define TK_X_VALUE(value) \
(double)(value-plot_bounds.xleft)/(double)(plot_bounds.xright-plot_bounds.xleft)
#define TK_Y_VALUE(value) \
(double)((TK_YMAX-value)-plot_bounds.ybot)/(double)(plot_bounds.ytop-plot_bounds.ybot)
static char *tk_bind_init[TK_LANG_MAX] = {
/* Tcl */
" $cv bind [\n ",
/* Perl */
" $cv->bind(\n ",
/* Python */
"",
/* Ruby */
"",
/* Rexx */
"",
/* Perl/Tkx */
" $cv->bind(\n "
};
static char *tk_line_segment_start[TK_LANG_MAX] = {
/* Tcl */
" $cv create line\\\n",
/* Perl */
" $cv->createLine(\n",
/* Python */
"\tcv.create_line(\\\n",
/* Ruby */
" cl=TkcLine.new(cv,\\\n",
/* Rexx */
" obj = TkCanvasLine(cv, ,\n",
/* Perl/Tkx */
" $cv->create_line(\n"
};
static char *tk_poly_point[TK_LANG_MAX] = {
/* Tcl */
" [expr $cmx*%d/1000] [expr $cmy*%d/1000]\\\n",
/* Perl */
" $cmx*%d/1000, $cmy*%d/1000,\n",
/* Python */
"\t\tcmx*%d/1000, cmy*%d/1000,\\\n",
/* Ruby */
" cmx*%d/1000, cmy*%d/1000,\\\n",
/* Rexx */
"\tcmx*%d/1000, cmy*%d/1000, ,\n",
/* Perl/Tkx */
" $cmx*%d/1000, $cmy*%d/1000,\n"
};
static char *tk_line_segment_opt[TK_LANG_MAX] = {
/* Tcl */
" -fill {%s} -width %.1f -capstyle %s -joinstyle %s",
/* Perl */
" -fill => q{%s}, -width => %.1f, -capstyle => q{%s}, -joinstyle => q{%s}",
/* Python */
"\t\tfill='%s', width=%.1f, capstyle='%s', joinstyle='%s'",
/* Ruby */
" 'fill'=>'%s', 'width'=>%.1f, 'capstyle'=>'%s', 'joinstyle'=>'%s'",
/* Rexx */
"\t'-fill', '%s', '-width', '%.1f', '-capstyle', '%s', '-joinstyle', '%s'",
/* Perl/Tkx */
" -fill => q{%s}, -width => %.1f, -capstyle => q{%s}, -joinstyle => q{%s}",
};
static char *tk_line_segment_dash[TK_LANG_MAX] = {
/* Tcl */
" -dash {%s}",
/* Perl */
", -dash => q{%s}",
/* Python */
", dash=(%s)",
/* Ruby */
", 'dash'=>'%s'",
/* Rexx */
", '-dash', '%s'",
/* Perl/Tkx */
", -dash => q{%s}"
};
static char *tk_line_segment_end[TK_LANG_MAX] = {
/* Tcl */
"\n",
/* Perl */
")",
/* Python */
")\n",
/* Ruby */
")\n",
/* Rexx */
")\n",
/* Perl/Tkx */
")"
};
static char *tk_bind_main[TK_LANG_MAX] = {
/* Tcl */
" ] <Button> \"gnuplot_xy %%W %f %f %f %f\\\n"
" %f %f %f %f",
/* Perl */
",\n '<Button>' => "
"[\\&gnuplot_xy, %f, %f, %f, %f,\n"
" %f, %f, %f, %f",
/* Python */
/* FIXME: how can one bind an event to a line segment in Python/TkCanvas ? */
"",
/* Ruby */
" cl.bind('Button', proc{ gnuplot_xy(%f, %f, %f, %f,\\\n"
" %f, %f, %f, %f",
/* FIXME: Rexx interactive binding untested */
" call TkCanvasBind cv, obj, 'Button', ,\n"
" 'gnuplot_xy %f, %f, %f, %f,' ,\n"
" '%f, %f, %f, %f' ,\n"
" ",
/* Perl/Tkx */
",\n '<Button>' => "
"[\\&gnuplot_xy, %f, %f, %f, %f,\n"
" %f, %f, %f, %f"
};
static char *tk_bind_f[TK_LANG_MAX] = {
/* Tcl */
" %f",
/* Perl */
", %f",
/* Python */
"",
/* Ruby */
", %f",
/* Rexx */
" || ', %f'",
/* Perl/Tkx */
", %f",
};
static char *tk_bind_nil[TK_LANG_MAX] = {
/* Tcl */
" {}",
/* Perl */
", \"\"",
/* Python */
"",
/* Ruby */
", ''",
/* Rexx */
" || ', \'\''",
/* Perl/Tkx */
", \"\""
};
static char *tk_bind_end[TK_LANG_MAX] = {
/* Tcl */
"\"\n",
/* Perl */
"]);\n",
/* Python */
"",
/* Ruby */
") })\n",
/* Rexx */
"\n",
/* Perl/Tkx */
"]);\n"
};
static char *tk_nobind[TK_LANG_MAX] = {
/* Tcl */
"",
/* Perl */
";\n",
/* Python */
"",
/* Ruby */
"",
/* Rexx */
"",
/* Perl/Tkx */
";\n"
};
TERM_PUBLIC void
TK_vector(unsigned int x, unsigned int y)
{
if ((x != tk_lastx) || (TK_YMAX - y != tk_lasty))
TK_add_path_point(x, TK_YMAX - y);
tk_lastx = x;
tk_lasty = TK_YMAX - y;
return;
}
static void
TK_flush_line(void)
{
int x, y, i;
if (tk_in_path)
tk_in_path = FALSE;
if (tk_polygon_points < 2) {
tk_polygon_points = 0;
return;
}
/*
* this is the 1st part of the wrapper around the 'create line' command
* used to bind some actions to a line segment:
* bind {
* normal create line command
* } gnuplot_xy(some coordinates)
*/
/* prepare the binding mechanism */
if (tk_interactive && !is_3d_plot)
fprintf(gpoutfile, "%s", tk_bind_init[tk_script_language]);
/* draw a line segment */
fprintf(gpoutfile, "%s", tk_line_segment_start[tk_script_language]);
for (i = 0; i < tk_polygon_points; i++)
fprintf(gpoutfile, tk_poly_point[tk_script_language], tk_path_x[i], tk_path_y[i]);
fprintf(gpoutfile, tk_line_segment_opt[tk_script_language], tk_color, tk_linewidth,
tk_rounded ? "round" : "butt", tk_rounded ? "round" : "miter");
if (tk_dashpattern[0] != NUL)
fprintf(gpoutfile, tk_line_segment_dash[tk_script_language], tk_dashpattern);
fprintf(gpoutfile, "%s", tk_line_segment_end[tk_script_language]);
/* finish the binding mechanism
* (which calls 'gnuplot_xy' for the line segment pointed to by
* the mouse cursor when a mouse button is pressed)
*/
x = tk_path_x[tk_polygon_points -1];
y = tk_path_y[tk_polygon_points -1];
if (tk_interactive && !is_3d_plot) {
fprintf(gpoutfile, tk_bind_main[tk_script_language],
TK_REAL_VALUE(TK_X_VALUE(tk_lastx), FIRST_X_AXIS),
TK_REAL_VALUE(TK_Y_VALUE(tk_lasty), FIRST_Y_AXIS),
TK_REAL_VALUE(TK_X_VALUE(tk_lastx), SECOND_X_AXIS),
TK_REAL_VALUE(TK_Y_VALUE(tk_lasty), SECOND_Y_AXIS),
TK_REAL_VALUE(TK_X_VALUE(x), FIRST_X_AXIS),
TK_REAL_VALUE(TK_Y_VALUE(y), FIRST_Y_AXIS),
TK_REAL_VALUE(TK_X_VALUE(x), SECOND_X_AXIS),
TK_REAL_VALUE(TK_Y_VALUE(y), SECOND_Y_AXIS));
if (axis_array[FIRST_X_AXIS].log)
fprintf(gpoutfile, tk_bind_f[tk_script_language],
TK_REAL_VALUE(TK_X_VALUE(0.5 * (x + tk_lastx)),
FIRST_X_AXIS));
else
fprintf(gpoutfile, "%s", tk_bind_nil[tk_script_language]);
if (axis_array[FIRST_Y_AXIS].log)
fprintf(gpoutfile, tk_bind_f[tk_script_language],
TK_REAL_VALUE(TK_Y_VALUE(0.5 * (y + tk_lasty)),
FIRST_Y_AXIS));
else
fprintf(gpoutfile, "%s", tk_bind_nil[tk_script_language]);
if (axis_array[SECOND_X_AXIS].log)
fprintf(gpoutfile, tk_bind_f[tk_script_language],
TK_REAL_VALUE(TK_X_VALUE(0.5 * (x + tk_lastx)),
SECOND_X_AXIS));
else
fprintf(gpoutfile, "%s", tk_bind_nil[tk_script_language]);
if (axis_array[SECOND_Y_AXIS].log)
fprintf(gpoutfile, tk_bind_f[tk_script_language],
TK_REAL_VALUE(TK_Y_VALUE(0.5 * (y + tk_lasty)),
SECOND_Y_AXIS));
else
fprintf(gpoutfile, "%s", tk_bind_nil[tk_script_language]);
fprintf(gpoutfile, "%s", tk_bind_end[tk_script_language]);
} else {
fprintf(gpoutfile, "%s", tk_nobind[tk_script_language]);
}
tk_polygon_points = 0;
tk_in_path = FALSE;
}
#undef TK_REAL_VALUE
#undef TK_X_VALUE
#undef TK_Y_VALUE
TERM_PUBLIC int
TK_text_angle(int ang)
{
tk_angle = ang;
return TRUE;
}
static char *tk_create_text_begin[TK_LANG_MAX] = {
/* Tcl */
" $cv create text "
"[expr $cmx * %d /1000] [expr $cmy * %d /1000]\\\n"
" -text {%s} -fill %s\\\n"
" -anchor %s",
/* Perl */
" $cv->createText($cmx * %d / 1000, $cmy * %d / 1000,\n"
" -text => q{%s}, -fill => q{%s}, -anchor => '%s'",
/* Python */
"\tcv.create_text(cmx*%d/1000, cmy*%d/1000,\\\n"
"\t\ttext='%s', fill='%s', anchor='%s'",
/* Ruby */
" ct=TkcText.new(cv, cmx*%d/1000, cmy*%d/1000,\\\n"
" 'text'=>'%s', 'fill'=>'%s', 'anchor'=>'%s'",
/* Rexx */
" call TkCanvasText cv, cmx*%d/1000, cmy*%d/1000, ,\n"
"\t'-text', '%s', '-fill', '%s', '-anchor', '%s'",
/* Perl/Tkx */
" $cv->create_text($cmx * %d / 1000, $cmy * %d / 1000,\n"
" -text => q{%s}, -fill => q{%s}, -anchor => '%s'"
};
static char *tk_create_text_font[TK_LANG_MAX] = {
/* Tcl */
" -font $font",
/* Perl */
",\n -font => $font",
/* Python */
", font=gfont",
/* Ruby */
", 'font'=>font",
/* Rexx */
", '-font', font",
/* Perl/Tkx */
",\n (defined $font ? (-font => $font) : ())"
};
static char *tk_create_text_angle[TK_LANG_MAX] = {
/* Tcl */
" -angle %d",
/* Perl */
", -angle => %d",
/* Python */
", angle=%d",
/* Ruby */
", 'angle'=>%d",
/* Rexx */
", '-angle', %d",
/* Perl/Tkx */
", -angle => %d"
};
static char *tk_tag[TK_LANG_MAX] = {
/* Tcl */
" -tags %s",
/* Perl */
", -tags => q{%s}",
/* Python */
", tags='%s'",
/* Ruby */
", 'tags'=>'%s'",
/* Rexx */
", '-tags', '%s'",
/* Perl/Tkx */
", -tags => q{%s}"
};
static char *tk_create_text_end[TK_LANG_MAX] = {
/* Tcl */
"\n",
/* Perl */
");\n",
/* Python */
")\n",
/* Ruby */
")\n",
/* Rexx */
"\n",
/* Perl/Tkx */
");\n"
};
static void
TK_put_noenhanced_text(unsigned int x, unsigned int y, const char *str)
{
char *quoted_str = (char *) str;
int i, newsize = 0;
TK_flush_line();
if (tk_script_language == TK_LANG_TCL) {
/* Have to escape several characters: []{}"$; */
for (i = 0; str[i] != '\0'; i++) {
if ((str[i] == '[') || (str[i] == ']') ||
(str[i] == '{') || (str[i] == '}') ||
(str[i] == '$') || (str[i] == ';'))
newsize++;
newsize++;
}
quoted_str = (char *) gp_alloc(newsize + 1, "TK_put_text: quoted string");
for (i = 0, newsize = 0; str[i] != '\0'; i++) {
if ((str[i] == '[') || (str[i] == ']') ||
(str[i] == '{') || (str[i] == '}') ||
(str[i] == '$') || (str[i] == ';'))
quoted_str[newsize++] = '\\';
quoted_str[newsize++] = str[i];
}
quoted_str[newsize] = '\0';
}
if ((tk_script_language == TK_LANG_REXX) ||
(tk_script_language == TK_LANG_RUBY) ||
(tk_script_language == TK_LANG_PYTHON)) {
/* Have to quote-protect "'" characters */
for (i = 0; str[i] != '\0'; i++) {
if (str[i] == '\'')
newsize ++;
newsize++;
}
quoted_str = (char *) gp_alloc(newsize + 1, "TK_put_text: quoted string");
for (i = 0, newsize = 0; str[i] != '\0'; i++) {
if (str[i] == '\'')
quoted_str[newsize++] = (tk_script_language == TK_LANG_REXX) ? '\'' : '\\';
quoted_str[newsize++] = str[i];
}
quoted_str[newsize] = '\0';
}
y = TK_YMAX - y;
fprintf(gpoutfile, tk_create_text_begin[tk_script_language],
x, y, quoted_str, tk_color, tk_anchor);
if (tk_next_text_use_font) {
fprintf(gpoutfile, "%s", tk_create_text_font[tk_script_language]);
tk_next_text_use_font = FALSE;
}
if (tk_angle != 0)
fprintf(gpoutfile, tk_create_text_angle[tk_script_language], tk_angle);
if (tk_boxed)
fprintf(gpoutfile, tk_tag[tk_script_language], "boxedtext");
fprintf(gpoutfile, "%s", tk_create_text_end[tk_script_language]);
if (quoted_str != str)
free(quoted_str);
}
static char *tk_undef_font[TK_LANG_MAX] = {
/* Tcl */
" catch {unset font}\n",
/* Perl */
" undef $font;\n",
/* Python */
"",
/* Ruby */
"",
/* Rexx */
" drop font\n",
/* Perl/Tkx */
" undef $font;\n"
};
static char *tk_set_font[TK_LANG_MAX] = {
/* Tcl */
" set font [font create -family {%s}",
/* Perl */
" $font = $cv->fontCreate(-family => q{%s}",
/* Python */
"\tgfont = font.Font(family='%s'",
/* Ruby */
" font = TkFont.new :family => '%s'",
/* Rexx */
" font = TkFontCreate( , '-family', '%s'",
/* Perl/Tkx */
" $font = Tkx::font_create(-family => q{%s}"
};
static char *tk_set_fsize[TK_LANG_MAX] = {
/* Tcl */
" -size %d",
/* Perl */
", -size => %d",
/* Python */
", size=%d",
/* Ruby */
", :size => %d",
/* Rexx */
", '-size', '%d'",
/* Perl/Tkx */
", -size => %d"
};
static char *tk_set_fbold[TK_LANG_MAX] = {
/* Tcl */
" -weight bold",
/* Perl */
", -weight => q{bold}",
/* Python */
", weight='bold'",
/* Ruby */
", :weight => 'bold'",
/* Rexx */
", '-weight', 'bold'",
/* Perl/Tkx */
", -weight => q{bold}"
};
static char *tk_set_fitalic[TK_LANG_MAX] = {
/* Tcl */
" -slant italic",
/* Perl */
", -slant => q{italic}",
/* Python */
", slant='italic'",
/* Ruby */
", :slant => 'italic'",
/* Rexx */
", '-slant', 'italic'",
/* Perl/Tkx */
", -slant => q{italic}"
};
static char *tk_font_end[TK_LANG_MAX] = {
/* Tcl */
"]\n",
/* Perl */
");\n",
/* Python */
")\n",
/* Ruby */
"\n",
/* Rexx */
")\n",
/* Perl/Tkx */
");\n"
};
TERM_PUBLIC int
TK_set_font(const char *font)
{
if (!font || *font == NUL) {
tk_next_text_use_font = FALSE;
fputs(tk_undef_font[tk_script_language], gpoutfile);
} else {
char *name;
int size = 0;
size_t sep1 = strcspn(font, ",");
size_t sep2 = strcspn(font, ":");
size_t sep = GPMIN(sep1, sep2);
TBOOLEAN isbold, isitalic;
/* extract font name */
name = (char *) gp_alloc(sep + 1, "TK_set_font");
if (!name)
return FALSE;
strncpy(name, font, sep);
name[sep] = NUL;
/* bold, italic */
isbold = (strstr(font, ":Bold") != NULL);
isitalic = (strstr(font, ":Italic") != NULL);
/* font size */
if (sep1 < strlen(font))
sscanf(&(font[sep1 + 1]), "%d", &size);
fprintf(gpoutfile, tk_set_font[tk_script_language], name);
if (size > 0)
fprintf(gpoutfile, tk_set_fsize[tk_script_language], size);
if (isbold)
fprintf(gpoutfile, "%s", tk_set_fbold[tk_script_language]);
if (isitalic)
fprintf(gpoutfile, "%s", tk_set_fitalic[tk_script_language]);
fputs(tk_font_end[tk_script_language], gpoutfile);
tk_next_text_use_font = TRUE;
free(name);
}
return TRUE;
}
TERM_PUBLIC void
TK_enhanced_open(char *fontname, double fontsize, double base,
TBOOLEAN widthflag, TBOOLEAN showflag, int overprint)
{
if (overprint == 3) { /* save current position */
fprintf(gpoutfile, "set xenh_save $xenh; set yenh_save $yenh;\n");
return;
} else if (overprint == 4) { /* restore saved position */
fprintf(gpoutfile, "set xenh $xenh_save; set yenh $yenh_save;\n");
return;
}
if (!tk_enhanced_opened_string) {
TBOOLEAN isbold, isitalic;
char * family, * sep;
tk_enhanced_opened_string = TRUE;
/* Start new text fragment */
enhanced_cur_text = &enhanced_text[0];
/* Scale fractional font height to vertical units of display */
tk_enhanced_base = base * TK_HCHAR;
/* Keep track of whether we are supposed to show this string */
tk_enhanced_show = showflag;
/* 0/1/2 no overprint / 1st pass / 2nd pass */
tk_enhanced_overprint = overprint;
/* widthflag FALSE means do not update text position after printing */
tk_enhanced_widthflag = widthflag;
/* set new font */
family = gp_strdup(fontname);
sep = strchr(family, ':');
if (sep != NULL) *sep = NUL;
isbold = (strstr(fontname, ":Bold") != NULL);
isitalic = (strstr(fontname, ":Italic") != NULL);
fprintf(gpoutfile, tk_set_font[tk_script_language], family);
if (fontsize > 0)
fprintf(gpoutfile, tk_set_fsize[tk_script_language], (int) (fontsize));
if (isbold)
fprintf(gpoutfile, "%s", tk_set_fbold[tk_script_language]);
if (isitalic)
fprintf(gpoutfile, "%s", tk_set_fitalic[tk_script_language]);
fputs(tk_font_end[tk_script_language], gpoutfile);
tk_next_text_use_font = TRUE;
free(family);
}
}
static char *tk_enhanced_text_begin[TK_LANG_MAX] = {
/* Tcl */
" set et [$cv create text $%s $%s\\\n"
" -text {%s} -fill %s\\\n"
" -anchor %s",
/* Perl */
" $cv->createText($cmx * %d / 1000, $cmy * %d / 1000,\n"
" -text => q{%s}, -fill => q{%s}, -anchor => '%s'",
/* Python */
"\tcv.create_text(cmx*%d/1000, cmy*%d/1000,\\\n"
"\t\ttext='%s', fill='%s', anchor='%s'",
/* Ruby */
" ct=TkcText.new(cv, cmx*%d/1000, cmy*%d/1000,\\\n"
" 'text'=>'%s', 'fill'=>'%s', 'anchor'=>'%s'",
/* Rexx */
" call TkCanvasText cv, cmx*%d/1000, cmy*%d/1000, ,\n"
"\t'-text', '%s', '-fill', '%s', '-anchor', '%s'",
/* Perl/Tkx */
" $cv->create_text($cmx * %d / 1000, $cmy * %d / 1000,\n"
" -text => q{%s}, -fill => q{%s}, -anchor => '%s'"
};
static char *tk_enhanced_text_end[TK_LANG_MAX] = {
/* Tcl */
"]\n",
/* Perl */
");\n",
/* Python */
")\n",
/* Ruby */
")\n",
/* Rexx */
"\n",
/* Perl/Tkx */
");\n"
};
TERM_PUBLIC void
TK_enhanced_flush()
{
char *str = enhanced_text; /* The fragment to print */
if (!tk_enhanced_opened_string)
return;
*enhanced_cur_text = NUL;
/* print the string fragment in any case */
/* NB: base expresses offset from current y pos */
fprintf(gpoutfile, "set yenh [expr int($yenhb + %d)]\n", (int) (-tk_enhanced_base/5 * cos(tk_angle * DEG2RAD)));
fprintf(gpoutfile, "set xenh [expr int($xenhb + %d)]\n", (int) (-tk_enhanced_base/5 * sin(tk_angle * DEG2RAD)));
fprintf(gpoutfile, tk_enhanced_text_begin[tk_script_language],
"xenh", "yenh", str, tk_color, tk_anchor);
if (tk_next_text_use_font) {
fprintf(gpoutfile, "%s", tk_create_text_font[tk_script_language]);
tk_next_text_use_font = FALSE;
}
if (!tk_boxed)
fprintf(gpoutfile, tk_tag[tk_script_language], "enhancedtext");
else
fprintf(gpoutfile, tk_tag[tk_script_language], "boxedtext");
fprintf(gpoutfile, "%s", tk_enhanced_text_end[tk_script_language]);
if (!tk_enhanced_widthflag)
/* don't update position */
;
else if (tk_enhanced_overprint == 1) {
/* First pass of overprint, leave position in center of fragment */
//fprintf(gpoutfile, "incr xenh [expr ([lindex [$cv bbox $et] 2] - [lindex [$cv bbox $et] 0]) / 2]\n");
fprintf(gpoutfile, "set width [expr ([lindex [$cv bbox $et] 2] - [lindex [$cv bbox $et] 0])]\n");
fprintf(gpoutfile, "incr xenhb [expr int($width * %f)]\n", + cos(tk_angle * DEG2RAD) / 2);
fprintf(gpoutfile, "incr yenhb [expr int($width * %f)]\n", - sin(tk_angle * DEG2RAD) / 2);
} else {
/* Normal case is to update position to end of fragment */
//fprintf(gpoutfile, "set xenh [lindex [$cv bbox $et] 2]\n");
fprintf(gpoutfile, "set width [expr ([lindex [$cv bbox $et] 2] - [lindex [$cv bbox $et] 0])]\n");
fprintf(gpoutfile, "incr xenhb [expr int($width * %f)]\n", + cos(tk_angle * DEG2RAD));
fprintf(gpoutfile, "incr yenhb [expr int($width * %f)]\n", - sin(tk_angle * DEG2RAD));
}
if (tk_angle != 0)
fprintf(gpoutfile, "$cv itemconfigure $et -angle %d\n", tk_angle);
if (!tk_enhanced_show)
fprintf(gpoutfile, "$cv delete $et\n");
tk_enhanced_opened_string = FALSE;
}
static void
TK_put_enhanced_text(unsigned int x, unsigned int y, const char *str)
{
/* Set up global variables needed by enhanced_recursion() */
enhanced_fontscale = 1.0;
strncpy(enhanced_escape_format, "%c", sizeof(enhanced_escape_format));
tk_enhanced_opened_string = FALSE;
tk_lastx = x;
tk_lasty = TK_YMAX - y;
fprintf(gpoutfile, "set xenh0 [expr $cmx * %d /1000]; set yenh0 [expr $cmy * %d /1000];\n", x, TK_YMAX - y);
fprintf(gpoutfile, "set xenh $xenh0; set yenh $yenh0;\n");
fprintf(gpoutfile, "set xenhb $xenh0; set yenhb $yenh0;\n");
strcpy(tk_anchor, "w");
/* Set the recursion going. We say to keep going until a
* closing brace, but we don't really expect to find one.
* If the return value is not the nul-terminator of the
* string, that can only mean that we did find an unmatched
* closing brace in the string. We increment past it (else
* we get stuck in an infinite loop) and try again.
*/
while (*(str = enhanced_recursion((char *)str, TRUE,
"" /* font */, 10 /* size */,
0.0, TRUE, TRUE, 0))) {
(term->enhanced_flush)();
/* I think we can only get here if *str == '}' */
enh_err_check(str);
if (!*++str)
break; /* end of string */
/* else carry on and process the rest of the string */
}
if (tk_justify == RIGHT)
fprintf(gpoutfile, "$cv move enhancedtext [expr ($xenh0 - $xenhb)] [expr ($yenh0 - $yenhb)]\n");
else if (tk_justify == CENTRE)
fprintf(gpoutfile, "$cv move enhancedtext [expr ($xenh0 - $xenhb)/2] [expr ($yenh0 - $yenhb)/2]\n");
fprintf(gpoutfile, "$cv dtag enhancedtext\n");
}
TERM_PUBLIC void
TK_put_text(unsigned int x, unsigned int y, const char *str)
{
if ((str == NULL) || !strlen(str)) return;
/* If no enhanced text processing is needed, we can use the plain */
/* vanilla put_text() routine instead of the fancy recursive one. */
/* FIXME: enhanced text only implemented for Tcl */
if (!(term->flags & TERM_ENHANCED_TEXT) || ignore_enhanced_text || !strpbrk(str, "{}^_@&~") ||
(tk_script_language != TK_LANG_TCL))
TK_put_noenhanced_text(x, y, str);
else
TK_put_enhanced_text(x, y, str);
}
TERM_PUBLIC int
TK_justify_text(enum JUSTIFY anchor)
{
int return_value;
switch (anchor) {
case RIGHT:
strcpy(tk_anchor, "e");
return_value = TRUE;
break;
case CENTRE:
strcpy(tk_anchor, "center");
return_value = TRUE;
break;
case LEFT:
strcpy(tk_anchor, "w");
return_value = TRUE;
break;
default:
strcpy(tk_anchor, "w");
return_value = FALSE;
}
tk_justify = anchor;
return return_value;
}
TERM_PUBLIC void
TK_point(unsigned int x, unsigned int y, int point)
{
TK_flush_line();
if (point >= 0) {
do_point(x, y, point);
} else {
/* Emulate dots by a line of length 1 */
TK_dashtype(DASHTYPE_SOLID, NULL);
TK_move(x, y);
TK_vector(x, y+1);
TK_flush_line();
}
}
static char *tk_line_arrow[TK_LANG_MAX] = {
/* Tcl */
" -arrow %s",
/* Perl */
", -arrow => q{%s}",
/* Python */
", arrow='%s'",
/* Ruby */
", 'arrow'=>'%s'",
/* Rexx */
", '-arrow', '%s'",
/* Perl/Tkx */
", -arrow => q{%s}"
};
static char *tk_line_arrowshape[TK_LANG_MAX] = {
/* Tcl */
" -arrowshape {%d %d %d}",
/* Perl */
", -arrowshape => [%d, %d, %d]",
/* Python */
", arrowshape=(%d, %d, %d)",
/* Ruby */
", 'arrowshape'=>[%d, %d, %d]",
/* Rexx */
", '-arrowshape', '%d %d %d'",
/* Perl/Tkx */
", -arrowshape => [%d, %d, %d]"
};
TERM_PUBLIC
void TK_arrow(unsigned int usx, unsigned int usy, unsigned int uex, unsigned int uey, int head)
{
/* NOHEAD = 0, END_HEAD = 1, BACKHEAD = 2, BOTH_HEADS = 3 */
const char * arrow[BOTH_HEADS + 1] = { "none", "last", "first", "both" };
/* NOTE: we really need integer arguments. Why are the arguments unsigned in the first place? */
int sx = (int) usx;
int sy = (int) usy;
int ex = (int) uex;
int ey = (int) uey;
TK_flush_line();
if (curr_arrow_headfilled >= AS_FILLED) { /* AS_FILLED, AS_NOBORDER */
assert(abs(head) <= BOTH_HEADS);
fprintf(gpoutfile, "%s", tk_line_segment_start[tk_script_language]);
fprintf(gpoutfile, tk_poly_point[tk_script_language], sx, TK_YMAX - sy);
fprintf(gpoutfile, tk_poly_point[tk_script_language], ex, TK_YMAX - ey);
fprintf(gpoutfile, tk_line_segment_opt[tk_script_language], tk_color, tk_linewidth,
tk_rounded ? "round" : "butt", tk_rounded ? "round" : "miter");
if (curr_arrow_headlength > 0) {
/* This should exactly mimic the behaviour of do_arrow() */
int width = sin(curr_arrow_headangle * DEG2RAD) * curr_arrow_headlength;
int tiplen = cos(curr_arrow_headangle * DEG2RAD) * curr_arrow_headlength;
int backlen = width / tan(curr_arrow_headbackangle * DEG2RAD);
int length = tiplen - backlen;
/* impose lower limit on thickness of tips */
if (4 * length < tiplen) length = tiplen / 4;
if (length <= 1) length = 2;
if (tiplen < 1) tiplen = 1;
if (fabs(curr_arrow_headlength) < DBL_EPSILON)
head = NOHEAD;
fprintf(gpoutfile, tk_line_arrow[tk_script_language], arrow[abs(head)]);
fprintf(gpoutfile, tk_line_arrowshape[tk_script_language], length, tiplen, width);
} else if (head != NOHEAD) {
double dx = sx - ex;
double dy = sy - ey;
double len_arrow = sqrt(dx * dx + dy * dy);
double len_tic = ((double) (term->h_tic + term->v_tic)) / 2.0;
double head_coeff = GPMAX(len_tic * HEAD_SHORT_LIMIT, GPMIN(HEAD_COEFF * len_arrow, len_tic * HEAD_LONG_LIMIT));
int length = (int) (COS15 * head_coeff);
int width = (int) (SIN15 * head_coeff);
fprintf(gpoutfile, tk_line_arrow[tk_script_language], arrow[abs(head)]);
fprintf(gpoutfile, tk_line_arrowshape[tk_script_language], length, length, width);
}
if (tk_dashpattern[0] != NUL)
fprintf(gpoutfile, tk_line_segment_dash[tk_script_language], tk_dashpattern);
fprintf(gpoutfile, "%s", tk_line_segment_end[tk_script_language]);
fprintf(gpoutfile, "%s", tk_nobind[tk_script_language]);
} else { /* AS_NOFILL, AS_EMPTY */
/* fall back to internal routine since we cannot do non-filled arrows */
do_arrow(sx, sy, ex, ey, head);
}
}
static char *tk_endblock[TK_LANG_MAX] = {
/* Tcl */
"}\n",
/* Perl */
"};\n",
/* Python */
"",
/* Ruby */
"end\n",
/* Rexx */
"return 0\n\n",
/* Perl/Tkx */
"};\n"
};
static char *tk_info_procs[TK_LANG_MAX] = {
/* Tcl */
"proc gnuplot_plotarea {} {\n"
" return {%d %d %d %d}\n"
"}\n"
"proc gnuplot_axisranges {} {\n"
" return {%f %f %f %f\n"
" %f %f %f %f}\n"
"}\n",
/* Perl */
"sub gnuplot_plotarea {\n"
" return (%d, %d, %d, %d);\n"
"};\n"
"sub gnuplot_axisranges {\n"
" return (%f, %f, %f, %f,\n"
" %f, %f, %f, %f);\n"
"};\n",
/* Python */
"def gnuplot_plotarea():\n"
"\treturn (%d, %d, %d, %d)\n"
"def gnuplot_axisranges():\n"
"\treturn (%f, %f, %f, %f,\\\n"
"\t %f, %f, %f, %f)\n",
/* Ruby */
"def gnuplot_plotarea()\n"
" return [%d, %d, %d, %d]\n"
"end\n"
"def gnuplot_axisranges()\n"
" return [%f, %f, %f, %f,\\\n"
" %f, %f, %f, %f]\n"
"end\n",
/* Rexx */
"gnuplot_plotarea: procedure\n"
"return '%d %d %d %d'\n"
"\n"
"gnuplot_axisranges: procedure\n"
"return '%f %f %f %f ' || ,\n"
" '%f %f %f %f'\n"
"\n",
/* Perl/Tkx */
"sub gnuplot_plotarea {\n"
" return (%d, %d, %d, %d);\n"
"};\n"
"sub gnuplot_axisranges {\n"
" return (%f, %f, %f, %f,\n"
" %f, %f, %f, %f);\n"
"};\n"
};
static char *tk_gnuplot_xy[] = {
/* Tcl */
"proc gnuplot_xy {win x1s y1s x2s y2s x1e y1e x2e y2e x1m y1m x2m y2m} {\n"
" if {([llength [info commands user_gnuplot_coordinates]])} {\n"
" set id [$win find withtag current]\n"
" user_gnuplot_coordinates $win $id \\\n"
" $x1s $y1s $x2s $y2s $x1e $y1e $x2e $y2e $x1m $y1m $x2m $y2m\n"
" } else {\n"
" if {[string length $x1m]>0} {puts -nonewline \" $x1m\"\n"
" } else {puts -nonewline \" [expr 0.5*($x1s+$x1e)]\"}\n"
" if {[string length $y1m]>0} {puts -nonewline \" $y1m\"\n"
" } else {puts -nonewline \" [expr 0.5*($y1s+$y1e)]\"}\n"
" if {[string length $x2m]>0} {puts -nonewline \" $x2m\"\n"
" } else {puts -nonewline \" [expr 0.5*($x2s+$x2e)]\"}\n"
" if {[string length $y2m]>0} {puts \" $y2m\"\n"
" } else {puts \" [expr 0.5*($y2s+$y2e)]\"}\n"
" }\n"
"}\n",
/* Perl */
"sub gnuplot_xy {\n"
" my ($win, $x1s, $y1s, $x2s, $y2s, $x1e, $y1e, $x2e, $y2e,\n"
" $x1m, $y1m, $x2m, $y2m) = @_;\n"
" if (defined &user_gnuplot_coordinates) {\n"
" my $id = $win->find('withtag', 'current');\n"
" user_gnuplot_coordinates $win, $id, $x1s, $y1s, $x2s, $y2s,\n"
" $x1e, $y1e, $x2e, $y2e, $x1m, $y1m, $x2m, $y2m\n"
" } else {\n"
" print \" \", (length($x1m)>0 ? \"$x1m\": 0.5*($x1s+$x1e));\n"
" print \" \", (length($y1m)>0 ? \"$y1m\": 0.5*($y1s+$y1e));\n"
" print \" \", (length($x2m)>0 ? \"$x2m\": 0.5*($x2s+$x2e));\n"
" print \" \", (length($y2m)>0 ? \"$y2m\": 0.5*($y2s+$y2e));\n"
" print \"\\n\"\n"
" }\n"
"};\n",
/* Python */
/* FIXME: how can one bind an event to a line segment in Python/TkCanvas ? */
"",
/* Ruby */
"def gnuplot_xy(x1s, y1s, x2s, y2s, x1e, y1e, x2e, y2e,\n"
" x1m, y1m, x2m, y2m)\n"
// " if (defined &user_gnuplot_coordinates)\n"
// " id = win->find('withtag', 'current')\n"
// " user_gnuplot_coordinates (win, id, x1s, y1s, x2s, y2s,\\\n"
// " x1e, y1e, x2e, y2e, x1m, y1m, x2m, y2m)\n"
// " else\n"
" print \" \", x1m!='' ? x1m : 0.5*(x1s+x1e)\n"
" print \" \", y1m!='' ? y1m : 0.5*(y1s+y1e)\n"
" print \" \", x2m!='' ? x2m : 0.5*(x2s+x2e)\n"
" print \" \", y2m!='' ? y2m : 0.5*(y2s+y2e)\n"
" print \"\\n\""
// " end\n"
"end\n",
/* Rexx */
/* FIXME: Rexx gnuplot_xy is untested */
"gnuplot_xy: procedure\n"
" x1s=arg(1); y1s=arg(2); x2s=arg(3); y2s=arg(4);\n"
" x1e=arg(5); y1e=arg(6); x2e=arg(7); y2e=arg(8);\n"
" x1m=arg(9); y1m=arg(10); x2m=arg(11); y2m=arg(12);\n"
"\n"
" outstr = ''\n"
" if (x1m\\='') then outstr = outstr x1m\n"
" else outstr = outstr (0.5*(x1s+x1e))\n"
" if (y1m\\='') then outstr = outstr y1m\n"
" else outstr = outstr (0.5*(y1s+y1e))\n"
" if (x2m\\='') then outstr = outstr x2m\n"
" else outstr = outstr (0.5*(x2s+x2e))\n"
" if (y2m\\='') then outstr = outstr y2m\n"
" else outstr = outstr (0.5*(y2s+y2e))\n"
"\n"
" call lineout ,outstr\n"
"return\n\n,"
/* Perl/Tkx */
"sub gnuplot_xy {\n"
" my ($win, $x1s, $y1s, $x2s, $y2s, $x1e, $y1e, $x2e, $y2e,\n"
" $x1m, $y1m, $x2m, $y2m) = @_;\n"
" if (defined &user_gnuplot_coordinates) {\n"
" my $id = $win->find('withtag', 'current');\n"
" user_gnuplot_coordinates $win, $id, $x1s, $y1s, $x2s, $y2s,\n"
" $x1e, $y1e, $x2e, $y2e, $x1m, $y1m, $x2m, $y2m\n"
" } else {\n"
" print \" \", (length($x1m)>0 ? \"$x1m\": 0.5*($x1s+$x1e));\n"
" print \" \", (length($y1m)>0 ? \"$y1m\": 0.5*($y1s+$y1e));\n"
" print \" \", (length($x2m)>0 ? \"$x2m\": 0.5*($x2s+$x2e));\n"
" print \" \", (length($y2m)>0 ? \"$y2m\": 0.5*($y2s+$y2e));\n"
" print \"\\n\"\n"
" }\n"
"};\n"
};
TERM_PUBLIC void
TK_text()
{
/*
* when switching back to text mode some procedures are generated which
* return important information about plotarea size and axis ranges:
* 'gnuplot_plotarea'
* returns the plotarea size in tkcanvas units
* 'gnuplot_axisranges'
* returns the min. and max. values of the axis
* (these are essentially needed to set the size of the canvas
* when the axis scaling is important.
* 'gnuplot_xy'
* contains actions bound to line segments the mouse is pointing
* to (see the above 'TK_vector' code):
* if the user has defined a procedure named 'user_gnuplot_coordinates'
* then 'gnuplot_xy' calls this procedure, otherwise is writes the
* coordinates of the line segment the mouse cursor is pointing to
* to standard output.
*/
TK_flush_line();
fprintf(gpoutfile, "%s", tk_endblock[tk_script_language]);
if (!is_3d_plot)
fprintf(gpoutfile, tk_info_procs[tk_script_language],
plot_bounds.xleft, plot_bounds.xright, TK_YMAX - plot_bounds.ytop, TK_YMAX - plot_bounds.ybot,
axis_array[FIRST_X_AXIS].min, axis_array[FIRST_X_AXIS].max,
axis_array[FIRST_Y_AXIS].min, axis_array[FIRST_Y_AXIS].max,
axis_array[SECOND_X_AXIS].min, axis_array[SECOND_X_AXIS].max,
axis_array[SECOND_Y_AXIS].min, axis_array[SECOND_Y_AXIS].max);
if (tk_interactive)
fputs(tk_gnuplot_xy[tk_script_language], gpoutfile);
if (tk_standalone && (tk_script_language != TK_LANG_REXX))
fprintf(gpoutfile, tk_standalone_init[tk_script_language], tk_width, tk_height);
fflush(gpoutfile);
}
static char *tk_rectangle[TK_LANG_MAX] = {
/* Tcl */
" $cv create rectangle\\\n"
" [expr $cmx*%d/1000] [expr $cmy*%d/1000]\\\n"
" [expr $cmx*%d/1000] [expr $cmy*%d/1000]\\\n"
" -fill %s -outline {} -stipple {%s}\n",
/* Perl */
" $cv->createRectangle("
"$cmx*%d/1000, $cmy*%d/1000, $cmx*%d/1000, $cmy*%d/1000,\n"
" -fill => q{%s}, -outline => q{}, -stipple => q{%s});\n",
/* Python */
"\tcv.create_rectangle(cmx*%d/1000, cmy*%d/1000, cmx*%d/1000, cmy*%d/1000,\\\n"
"\t\tfill='%s', outline='', stipple='%s')\n",
/* Ruby */
" cr=TkcRectangle.new("
"cv, cmx*%d/1000, cmy*%d/1000, cmx*%d/1000, cmy*%d/1000,\\\n"
" 'fill'=>'%s', 'outline'=>'', 'stipple'=>'%s')\n",
/* Rexx */
" obj = TkCanvasRectangle("
"cv, cmx*%d/1000, cmy*%d/1000, cmx*%d/1000, cmy*%d/1000, ,\n"
"\t'-fill', '%s', '-outline', '', '-stipple', '%s')\n",
/* Perl/Tkx */
" $cv->create_rectangle("
"$cmx*%d/1000, $cmy*%d/1000, $cmx*%d/1000, $cmy*%d/1000,\n"
" -fill => q{%s}, -outline => q{}, -stipple => q{%s});\n"
};
static void
TK_rectangle(int x1, int y1, int x2, int y2, char * color, char * stipple)
{
if (color == NULL) color = "";
if (stipple == NULL) stipple = "";
fprintf(gpoutfile, tk_rectangle[tk_script_language],
x1, y1, x2, y2, color, stipple);
}
TERM_PUBLIC void
TK_fillbox(int style, unsigned int x, unsigned int y, unsigned int w, unsigned int h)
{
char * stipple = "";
char * color = tk_color;
TK_flush_line();
switch (style & 0x0f) {
case FS_SOLID:
case FS_TRANSPARENT_SOLID: {
int density = style >> 4;
if (density < 20)
stipple = "gray12";
else if (density < 38)
stipple = "gray25";
else if (density < 53)
stipple = "gray50";
else if (density < 88)
stipple = "gray75";
else
stipple = "";
break;
}
case FS_PATTERN:
case FS_TRANSPARENT_PATTERN: {
const char * patterns[] = {"gray50", "gray25", "gray12", "gray75", ""};
int pattern = style >> 4;
stipple = (char *) patterns[pattern % 5];
break;
}
case FS_EMPTY:
color = (tk_background[0] != NUL) ? tk_background : "white";
break;
case FS_DEFAULT:
default:
break;
}
TK_rectangle(x, TK_YMAX - y, x + w, TK_YMAX - y - h, color, stipple);
}
static char *tk_poly_begin[TK_LANG_MAX] = {
/* Tcl */
" $cv create polygon\\\n",
/* Perl */
" $cv->createPolygon(\n",
/* Python */
"\tcv.create_polygon(\\\n",
/* Ruby */
" cp=TkcPolygon.new(cv,\\\n",
/* Rexx */
" obj = TkCanvasPolygon(cv, ,\n",
/* Perl/Tkx */
" $cv->create_polygon(\n"
};
static char *tk_poly_end[TK_LANG_MAX] = {
/* Tcl */
" -fill %s -outline {}\n",
/* Perl */
" -fill => q{%s}, -outline => q{});\n",
/* Python */
"\t\tfill='%s', outline='')\n",
/* Ruby */
" 'fill'=>'%s', 'outline'=>'')\n",
/* Rexx */
"\t'-fill', '%s', '-outline', '')\n",
/* Perl/Tkx */
" -fill => q{%s});\n",
};
TERM_PUBLIC void
TK_filled_polygon(int points, gpiPoint *corners)
{
int i;
TK_flush_line();
/* avoid duplicate last point */
if ((points > 2) && (corners[0].x == corners[points-1].x) && (corners[0].y == corners[points-1].y))
points--;
fprintf(gpoutfile, "%s", tk_poly_begin[tk_script_language]);
for (i = 0; i < points; i++)
fprintf(gpoutfile, tk_poly_point[tk_script_language], corners[i].x, TK_YMAX - corners[i].y);
fprintf(gpoutfile, tk_poly_end[tk_script_language], tk_color);
}
TERM_PUBLIC void
TK_path(int p)
{
if (p == 0) { /* start new path */
TK_flush_line();
tk_in_path = TRUE;
tk_polygon_points = 0;
FPRINTF((stderr, "tkcanvas: newpath\n"));
} else if (p == 1) { /* close path */
int i;
FPRINTF((stderr, "tkcanvas: closepath: %i points\n", tk_polygon_points));
if (tk_polygon_points > 1) {
fprintf(gpoutfile, "%s", tk_line_segment_start[tk_script_language]);
for (i = 0; i < tk_polygon_points; i++)
fprintf(gpoutfile, tk_poly_point[tk_script_language], tk_path_x[i], tk_path_y[i]);
fprintf(gpoutfile, tk_line_segment_opt[tk_script_language], tk_color, tk_linewidth,
tk_rounded ? "round" : "butt", tk_rounded ? "round" : "miter");
if (tk_dashpattern[0] != NUL)
fprintf(gpoutfile, tk_line_segment_dash[tk_script_language], tk_dashpattern);
fprintf(gpoutfile, "%s", tk_line_segment_end[tk_script_language]);
fprintf(gpoutfile, "%s", tk_nobind[tk_script_language]);
}
tk_in_path = FALSE;
tk_polygon_points = 0;
}
}
static void
TK_add_path_point(int x, int y)
{
if (tk_polygon_points >= tk_maxpath) {
tk_maxpath += 10;
tk_path_x = (int *) gp_realloc(tk_path_x, tk_maxpath * sizeof(int), "path_x");
tk_path_y = (int *) gp_realloc(tk_path_y, tk_maxpath * sizeof(int), "path_y");
}
tk_path_x[tk_polygon_points] = x;
tk_path_y[tk_polygon_points] = y;
tk_polygon_points++;
FPRINTF((stderr, "tkcanvas: new polygon point: %i %i\n", x, y));
}
#ifdef WRITE_PNG_IMAGE
TERM_PUBLIC void
TK_image(unsigned m, unsigned n, coordval * image, gpiPoint * corner, t_imagecolor color_mode)
{
int width = ABS(corner[0].x - corner[1].x);
int height = ABS(corner[0].y - corner[1].y);
char * basename = "gp";
char * fname;
TK_flush_line();
/* Write the image to a png file */
fname = (char *) gp_alloc(strlen(basename) + 16, "TK_image");
sprintf(fname, "%s_image_%02d.png", basename, ++tk_image_counter);
write_png_image(m, n, image, color_mode, fname);
/* FIXME: Only Tcl support, needs external `rescale` command. */
fprintf(gpoutfile, "set image%d [image create photo -file {%s}]\n", tk_image_counter, fname);
fprintf(gpoutfile, "set image%dr [resize $image%d [expr $cmx*%d/1000] [expr $cmy*%d/1000]]\n", tk_image_counter, tk_image_counter, width, height);
fprintf(gpoutfile, "$cv create image [expr $cmx*%d/1000] [expr $cmy*%d/1000] -anchor nw -image $image%dr\n", corner[0].x, TK_YMAX - corner[0].y, tk_image_counter);
}
#endif
static char *tk_box[TK_LANG_MAX] = {
/* Tcl */
" $cv raise boxedtext [$cv create rectangle [$cv bbox boxedtext] -fill {%s} -outline {%s}]\n",
/* Perl */
" $cv->raise(q{boxedtext}, $cv->createRectangle($cv->bbox(q{boxedtext}),\n"
" -fill => q{%s}, -outline => q{%s}));\n",
/* Python */
"\tcv.tag_raise('boxedtext', cv.create_rectangle(cv.bbox('boxedtext'),\\\n"
"\t\tfill='%s', outline='%s'))\n",
/* Ruby */
" cr=cv.raise('boxedtext', TkcRectangle.new(cv, cv.bbox('boxedtext'),\\\n"
" 'fill'=>'%s', 'outline'=>'%s'))\n",
/* Rexx */
"", /* TkCanvasRaise is not available */
/*
" obj = TkCanvasRaise(cv, 'boxedtext', TkCanvasRectangle(TkBbox(cv, 'boxedtext'), ,\n"
"\t'-fill', '%s', '-outline', '%s'))\n",
*/
/* Perl/Tkx */
" $cv->raise(q{boxedtext}, $cv->create_rectangle($cv->bbox(q{boxedtext}),\n"
" -fill => q{%s}, -outline => q{%s}));\n"
};
static char *tk_box_finish[TK_LANG_MAX] = {
/* Tcl */
" $cv dtag boxedtext\n",
/* Perl */
" $cv->dtag(q{boxedtext});\n",
/* Python */
"\tcv.dtag('boxedtext')\n",
/* Ruby */
" cr=cv.dtag('boxedtext')\n",
/* Rexx */
" obj = TkCanvasDTag(cv, 'boxedtext')\n",
/* Perl/Tkx */
" $cv->dtag(q{boxedtext});\n"
};
#ifdef EAM_BOXED_TEXT
TERM_PUBLIC void
TK_boxed_text(unsigned int x, unsigned int y, int option)
{
switch (option) {
case TEXTBOX_INIT:
tk_boxed = TRUE;
break;
case TEXTBOX_BACKGROUNDFILL:
fprintf(gpoutfile, tk_box[tk_script_language], (tk_background[0] != NUL) ? tk_background : "white", "");
break;
case TEXTBOX_GREY:
fprintf(gpoutfile, tk_box[tk_script_language], "grey75", "");
break;
case TEXTBOX_OUTLINE:
fprintf(gpoutfile, tk_box[tk_script_language], "", "black");
/* fall through, this also ends text box mode */
case TEXTBOX_FINISH:
fprintf(gpoutfile, "%s", tk_box_finish[tk_script_language]);
tk_boxed = FALSE;
break;
case TEXTBOX_MARGINS:
/* FIXME: cannot resize margins */
break;
}
}
#endif
#endif /* TERM_BODY */
#ifdef TERM_TABLE
TERM_TABLE_START(tkcanvas)
"tkcanvas", "Tk canvas widget",
TK_XMAX, TK_YMAX, TK_VCHAR, TK_HCHAR, TK_VTIC, TK_HTIC,
TK_options, TK_init, TK_reset,
TK_text, null_scale, TK_graphics, TK_move, TK_vector,
TK_linetype, TK_put_text, null_text_angle,
TK_justify_text, TK_point, TK_arrow, TK_set_font,
NULL /* set_pointsize */,
TERM_CAN_MULTIPLOT | TERM_ENHANCED_TEXT,
/* FIXME: Options not yet implemented */
/* TERM_CAN_DASH | TERM_LINEWIDTH | TERM_FONTSCALE, */
NULL /* suspend */, NULL /* resume */,
TK_fillbox, TK_linewidth,
#ifdef USE_MOUSE
NULL, NULL, NULL, NULL, NULL,
#endif
TK_make_palette, NULL, TK_color,
TK_filled_polygon, NULL /* image */,
TK_enhanced_open, TK_enhanced_flush, do_enh_writec,
NULL /* layer */, TK_path,
0.0,
NULL /* hypertext */,
#ifdef EAM_BOXED_TEXT
TK_boxed_text,
#endif
NULL, TK_dashtype
TERM_TABLE_END(tkcanvas)
#undef LAST_TERM
#define LAST_TERM tkcanvas
#endif /* TERM_TABLE */
#endif /* TERM_PROTO_ONLY */
#ifdef TERM_HELP
START_HELP(tkcanvas)
"1 tkcanvas",
"?commands set terminal tkcanvas",
"?set terminal tkcanvas",
"?set term tkcanvas",
"?terminal tkcanvas",
"?term tkcanvas",
"?tkcanvas",
" This terminal driver generates Tk canvas widget commands in one of the",
" following scripting languages: Tcl (default), Perl, Python, Ruby, or REXX.",
"",
" Syntax:",
" set terminal tkcanvas {tcl | perl | perltkx | python | ruby | rexx}",
" {standalone | input}",
" {interactive}",
" {rounded | butt}",
" {nobackground | background <rgb color>}",
" {{no}rottext}",
" {size <width>,<height>}",
" {{no}enhanced}",
" {externalimages | pixels}",
"",
" Execute the following sequence of Tcl/Tk commands to display the result:",
"",
" package require Tk",
" # the following two lines are only required to support external images",
" package require img::png",
" source resize.tcl",
" source plot.tcl",
" canvas .c -width 800 -height 600",
" pack .c",
" gnuplot .c",
"",
" Or, for Perl/Tk use a program like this:",
"",
" use Tk;",
" my $top = MainWindow->new;",
" my $c = $top->Canvas(-width => 800, -height => 600)->pack;",
" my $gnuplot = do \"plot.pl\";",
" $gnuplot->($c);",
" MainLoop;",
"",
" Or, for Perl/Tkx use a program like this:",
"",
" use Tkx;",
" my $top = Tkx::widget->new(\".\");",
" my $c = $top->new_tk__canvas(-width => 800, -height => 600);",
" $c->g_pack;",
" my $gnuplot = do \"plot.pl\";",
" $gnuplot->($c);",
" Tkx::MainLoop();",
"",
" Or, for Python/Tkinter use a program like this:",
"",
" from tkinter import *",
" from tkinter import font",
" root = Tk()",
" c = Canvas(root, width=800, height=600)",
" c.pack()",
" exec(open('plot.py').read())",
" gnuplot(c)",
" root.mainloop()",
"",
" Or, for Ruby/Tk use a program like this:",
"",
" require 'tk'",
" root = TkRoot.new { title 'Ruby/Tk' }",
" c = TkCanvas.new(root, 'width'=>800, 'height'=>600) { pack { } }",
" load('plot.rb')",
" gnuplot(c)",
" Tk.mainloop",
"",
" Or, for Rexx/Tk use a program like this:",
"",
" /**/",
" call RxFuncAdd 'TkLoadFuncs', 'rexxtk', 'TkLoadFuncs'",
" call TkLoadFuncs",
" cv = TkCanvas('.c', '-width', 800, '-height', 600)",
" call TkPack cv",
" call 'plot.rex' cv",
" do forever",
" cmd = TkWait()",
" if cmd = 'AWinClose' then leave",
" interpret 'call' cmd",
" end",
"",
" The code generated by `gnuplot` (in the above examples, this code is",
" written to \"plot.<ext>\") contains the following procedures:",
"",
" gnuplot(canvas)",
" takes the name of a canvas as its argument.",
" When called, it clears the canvas, finds the size of the canvas and",
" draws the plot in it, scaled to fit.",
"",
" gnuplot_plotarea()",
" returns a list containing the borders of the plotting area",
" (xleft, xright, ytop, ybot) in canvas screen coordinates."
" It works only for 2-dimensional plotting (`plot`).",
"",
" gnuplot_axisranges()",
" returns the ranges of the two axes in plot coordinates",
" (x1min, x1max, y1min, y1max, x2min, x2max, y2min, y2max).",
" It works only for 2-dimensional plotting (`plot`).",
"",
" You can create self-contained, minimal scripts using the `standalone`",
" option. The default is `input` which creates scripts which have to be",
" source'd (or loaded or called or whatever the adequate term is for the",
" language selected.",
"",
" If the `interactive` option is specified, mouse clicking on a line segment",
" will print the coordinates of its midpoint to stdout.",
" The user can supersede this behavior by supplying a procedure",
" user_gnuplot_coordinates which takes the following arguments:",
" win id x1s y1s x2s y2s x1e y1e x2e y2e x1m y1m x2m y2m,",
" i.e. the name of the canvas and the id of the line segment followed by the",
" coordinates of its start and end point in the two possible axis ranges; the",
" coordinates of the midpoint are only filled for logarithmic axes.",
"",
" By default the canvas is `transparent`, but an explicit background color",
" can be set with the `background `option.",
"",
" `rounded` sets line caps and line joins to be rounded;",
" `butt` is the default: butt caps and mitered joins.",
"",
" Text at arbitrary angles can be activated with the `rottext` option,",
" which requires Tcl/Tk 8.6 or later. The default is `norottext`.",
"",
" The `size` option tries to optimize the tic and font sizes for the given",
" canvas size. By default an output size of 800 x 600 pixels is assumed.",
"",
" `enhanced` selects `enhanced text` processing (default), but is currently",
" only available for Tcl.",
"",
" The `pixels` (default) option selects the failsafe pixel-by-pixel image",
" handler, see also `image pixels`.",
" The `externalimages` option saves images as external png images, which",
" are later loaded and scaled by the tkcanvas code. This option is only",
" available for Tcl and display may be slow in some situations since the",
" Tk image handler does not provide arbitrary scaling. Scripts need to source",
" the provided rescale.tcl.",
"",
" Interactive mode is not yet implemented for Python/Tk and Rexx/Tk.",
" Interactive mode for Ruby/Tk does not yet support user_gnuplot_coordinates."
END_HELP(tkcanvas)
#endif
|