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Diffstat (limited to 'leptonica/prog/printimage.c')
| -rw-r--r-- | leptonica/prog/printimage.c | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/leptonica/prog/printimage.c b/leptonica/prog/printimage.c new file mode 100644 index 00000000..9d195b2a --- /dev/null +++ b/leptonica/prog/printimage.c @@ -0,0 +1,158 @@ +/*====================================================================* + - Copyright (C) 2001 Leptonica. All rights reserved. + - + - Redistribution and use in source and binary forms, with or without + - modification, are permitted provided that the following conditions + - are met: + - 1. Redistributions of source code must retain the above copyright + - notice, this list of conditions and the following disclaimer. + - 2. Redistributions in binary form must reproduce the above + - copyright notice, this list of conditions and the following + - disclaimer in the documentation and/or other materials + - provided with the distribution. + - + - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + - ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + - LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + - A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ANY + - CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + - EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + - PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + - PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + - OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + - NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + - SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + *====================================================================*/ + +/* + * printimage.c + * + * This prints an image. It rotates and isotropically scales the image, + * as necessary, to get a maximum filling when printing onto an + * 8.5 x 11 inch page. + * + * Syntax: printimage <filein> [printer, other lpr args] + * + * The simplest input would be something like + * printimage myfile.jpg + * This generates the PostScript file /tmp/print_image.ps, but + * does not send it to a printer. + * + * If you have lpr, you can specify a printer; e.g. + * printimage myfile.jpg myprinter + * + * You can add lpr flags. Two useful ones are: + * * to print more than one copy + * -#N (prints N copies) + * * to print in color (flag is printer-dependent) + * -o ColorModel=Color or + * -o ColorModel=CMYK + * + * For example, to make 3 color copies, you might use: + * printimage myfile.jpg myprinter -#3 -o ColorModel=Color + * + * By default, the intermediate PostScript file generated is + * level 3 (compressed): + * /tmp/print_image.ps + * + * If your system does not have lpr, it likely has lp. You can run + * printimage to make the PostScript file, and then print with lp: + * lp -d <printer> /tmp/print_image.ps + * lp -d <printer> -o ColorModel=Color /tmp/print_image.ps + * etc. + * + * *************************************************************** + * N.B. If a printer is specified, this program invokes lpr via + * "system'. It could pose a security vulnerability if used + * as a service in a production environment. Consequently, + * this program should only be used for debug and testing. + * *************************************************************** + */ + +#ifdef HAVE_CONFIG_H +#include <config_auto.h> +#endif /* HAVE_CONFIG_H */ + +#include "allheaders.h" + +#define USE_COMPRESSED 1 + +static const l_float32 FILL_FACTOR = 0.95; /* fill factor on 8.5 x 11 page */ + +int main(int argc, + char **argv) +{ +char *filein, *printer, *extra, *fname; +char buffer[512]; +l_int32 i, w, h, ret, index; +l_float32 scale; +FILE *fp; +PIX *pixs, *pix1; +SARRAY *sa; +static char mainName[] = "printimage"; + + if (argc < 2) + return ERROR_INT( + " Syntax: printimage <filein> [printer, other lpr args]", + mainName, 1); + filein = argv[1]; + printer = (argc > 2) ? argv[2] : NULL; + + lept_stderr( + "\n!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n" + " Warning: this program should only be used for testing,\n" + " and not in a production environment, because of a\n" + " potential vulnerability with the 'system' call.\n" + "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n\n"); + + setLeptDebugOK(1); + (void)lept_rm(NULL, "print_image.ps"); + + if ((pixs = pixRead(filein)) == NULL) + return ERROR_INT("pixs not made", mainName, 1); + + pixGetDimensions(pixs, &w, &h, NULL); + if (w > h) { + pix1 = pixRotate90(pixs, 1); + pixGetDimensions(pix1, &w, &h, NULL); + } + else { + pix1 = pixClone(pixs); + } + scale = L_MIN(FILL_FACTOR * 2550 / w, FILL_FACTOR * 3300 / h); + fname = genPathname("/tmp", "print_image.ps"); +#if USE_COMPRESSED + index = 0; + pixWriteCompressedToPS(pix1, fname, (l_int32)(300. / scale), 3, &index); +#else /* uncompressed, level 1 */ + fp = lept_fopen(fname, "wb+"); + pixWriteStreamPS(fp, pix1, NULL, 300, scale); + lept_fclose(fp); +#endif /* USE_COMPRESSED */ + + /* Optionally print it out */ + if (argc > 2) { + extra = NULL; + if (argc > 3) { /* concatenate the extra args */ + sa = sarrayCreate(0); + for (i = 3; i < argc; i++) + sarrayAddString(sa, argv[i], L_COPY); + extra = sarrayToString(sa, 2); + sarrayDestroy(&sa); + } + if (!extra) { + snprintf(buffer, sizeof(buffer), "lpr %s -P%s &", fname, printer); + ret = system(buffer); + } else { + snprintf(buffer, sizeof(buffer), "lpr %s -P%s %s &", + fname, printer, extra); + ret = system(buffer); + } + lept_free(extra); + } + + lept_free(fname); + pixDestroy(&pixs); + pixDestroy(&pix1); + return 0; +} |