/*====================================================================* - 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. *====================================================================*/ /* * htmlviewer.c * * This takes a directory of image files, optionally scales them, * and generates html files to view the scaled images (and thumbnails). * * Input: dirin: directory of input image files * dirout: directory for output files * rootname: root name for output files * thumbwidth: width of thumb images, in pixels; use 0 for default * viewwidth: max width of view images, in pixels; use 0 for default * * Example: * mkdir /tmp/lept/lion-in * mkdir /tmp/lept/lion-out * cp lion-page* /tmp/lept/lion-in * htmlviewer /tmp/lept/lion-in /tmp/lept/lion-out lion 200 600 * ==> output: * /tmp/lept/lion-out/lion.html (main html file) * /tmp/lept/lion-out/lion-links.html (html file of links) */ #include #include "allheaders.h" #ifdef _WIN32 #include /* for CreateDirectory() */ #endif static const l_int32 DEFAULT_THUMB_WIDTH = 120; static const l_int32 DEFAULT_VIEW_WIDTH = 800; static const l_int32 MIN_THUMB_WIDTH = 50; static const l_int32 MIN_VIEW_WIDTH = 300; static l_int32 pixHtmlViewer(const char *dirin, const char *dirout, const char *rootname, l_int32 thumbwidth, l_int32 viewwidth); static void WriteFormattedPix(char *fname, PIX *pix); int main(int argc, char **argv) { char *dirin, *dirout, *rootname; l_int32 thumbwidth, viewwidth; static char mainName[] = "htmlviewer"; if (argc != 6) return ERROR_INT( " Syntax: htmlviewer dirin dirout rootname thumbwidth viewwidth", mainName, 1); dirin = argv[1]; dirout = argv[2]; rootname = argv[3]; thumbwidth = atoi(argv[4]); viewwidth = atoi(argv[5]); setLeptDebugOK(1); pixHtmlViewer(dirin, dirout, rootname, thumbwidth, viewwidth); return 0; } /*---------------------------------------------------------------------* * Generate smaller images for viewing and write html * *---------------------------------------------------------------------*/ /*! * \brief pixHtmlViewer() * * \param[in] dirin directory of input image files * \param[in] dirout directory for output files * \param[in] rootname root name for output files * \param[in] thumbwidth width of thumb images in pixels; use 0 for default * \param[in] viewwidth maximum width of view images no up-scaling * in pixels; use 0 for default * \return 0 if OK; 1 on error * * 
 * Notes:
 *      (1) The thumb and view reduced images are generated,
 *          along with two html files:
 *             .html and -links.html
 *      (2) The thumb and view files are named
 *             _thumb_xxx.jpg
 *             _view_xxx.jpg
 *          With this naming scheme, any number of input directories
 *          of images can be processed into views and thumbs
 *          and placed in the same output directory.
 *
*/ static l_int32 pixHtmlViewer(const char *dirin, const char *dirout, const char *rootname, l_int32 thumbwidth, l_int32 viewwidth) { char *fname, *fullname, *outname; char *mainname, *linkname, *linknameshort; char *viewfile, *thumbfile; char *shtml, *slink; char buf[512]; char htmlstring[] = ""; char framestring[] = ""; l_int32 i, nfiles, index, w, d, nimages, ret; l_float32 factor; PIX *pix, *pixthumb, *pixview; SARRAY *safiles, *sathumbs, *saviews, *sahtml, *salink; PROCNAME("pixHtmlViewer"); if (!dirin) return ERROR_INT("dirin not defined", procName, 1); if (!dirout) return ERROR_INT("dirout not defined", procName, 1); if (!rootname) return ERROR_INT("rootname not defined", procName, 1); if (thumbwidth == 0) thumbwidth = DEFAULT_THUMB_WIDTH; if (thumbwidth < MIN_THUMB_WIDTH) { L_WARNING("thumbwidth too small; using min value\n", procName); thumbwidth = MIN_THUMB_WIDTH; } if (viewwidth == 0) viewwidth = DEFAULT_VIEW_WIDTH; if (viewwidth < MIN_VIEW_WIDTH) { L_WARNING("viewwidth too small; using min value\n", procName); viewwidth = MIN_VIEW_WIDTH; } /* Make the output directory if it doesn't already exist */ #ifndef _WIN32 snprintf(buf, sizeof(buf), "mkdir -p %s", dirout); ret = system(buf); #else ret = CreateDirectory(dirout, NULL) ? 0 : 1; #endif /* !_WIN32 */ if (ret) { L_ERROR("output directory %s not made\n", procName, dirout); return 1; } /* Capture the filenames in the input directory */ if ((safiles = getFilenamesInDirectory(dirin)) == NULL) return ERROR_INT("safiles not made", procName, 1); /* Generate output text file names */ snprintf(buf, sizeof(buf), "%s/%s.html", dirout, rootname); mainname = stringNew(buf); snprintf(buf, sizeof(buf), "%s/%s-links.html", dirout, rootname); linkname = stringNew(buf); linknameshort = stringJoin(rootname, "-links.html"); /* Generate the thumbs and views */ sathumbs = sarrayCreate(0); saviews = sarrayCreate(0); nfiles = sarrayGetCount(safiles); index = 0; for (i = 0; i < nfiles; i++) { fname = sarrayGetString(safiles, i, L_NOCOPY); fullname = genPathname(dirin, fname); fprintf(stderr, "name: %s\n", fullname); if ((pix = pixRead(fullname)) == NULL) { fprintf(stderr, "file %s not a readable image\n", fullname); lept_free(fullname); continue; } lept_free(fullname); /* Make and store the thumbnail images */ pixGetDimensions(pix, &w, NULL, &d); factor = (l_float32)thumbwidth / (l_float32)w; pixthumb = pixScale(pix, factor, factor); snprintf(buf, sizeof(buf), "%s_thumb_%03d", rootname, index); sarrayAddString(sathumbs, buf, L_COPY); outname = genPathname(dirout, buf); WriteFormattedPix(outname, pixthumb); lept_free(outname); pixDestroy(&pixthumb); /* Make and store the view images */ factor = (l_float32)viewwidth / (l_float32)w; if (factor >= 1.0) pixview = pixClone(pix); /* no upscaling */ else pixview = pixScale(pix, factor, factor); snprintf(buf, sizeof(buf), "%s_view_%03d", rootname, index); sarrayAddString(saviews, buf, L_COPY); outname = genPathname(dirout, buf); WriteFormattedPix(outname, pixview); lept_free(outname); pixDestroy(&pixview); pixDestroy(&pix); index++; } /* Generate the main html file */ sahtml = sarrayCreate(0); sarrayAddString(sahtml, htmlstring, L_COPY); snprintf(buf, sizeof(buf), "", thumbwidth + 30); sarrayAddString(sahtml, buf, L_COPY); snprintf(buf, sizeof(buf), "", linknameshort); sarrayAddString(sahtml, buf, L_COPY); snprintf(buf, sizeof(buf), "", sarrayGetString(saviews, 0, L_NOCOPY)); sarrayAddString(sahtml, buf, L_COPY); sarrayAddString(sahtml, framestring, L_COPY); shtml = sarrayToString(sahtml, 1); l_binaryWrite(mainname, "w", shtml, strlen(shtml)); fprintf(stderr, "******************************************\n" "Writing html file: %s\n" "******************************************\n", mainname); lept_free(shtml); lept_free(mainname); /* Generate the link html file */ nimages = sarrayGetCount(saviews); fprintf(stderr, "num. images = %d\n", nimages); salink = sarrayCreate(0); for (i = 0; i < nimages; i++) { viewfile = sarrayGetString(saviews, i, L_NOCOPY); thumbfile = sarrayGetString(sathumbs, i, L_NOCOPY); snprintf(buf, sizeof(buf), "", viewfile, thumbfile); sarrayAddString(salink, buf, L_COPY); } slink = sarrayToString(salink, 1); l_binaryWrite(linkname, "w", slink, strlen(slink)); lept_free(slink); lept_free(linkname); lept_free(linknameshort); sarrayDestroy(&safiles); sarrayDestroy(&sathumbs); sarrayDestroy(&saviews); sarrayDestroy(&sahtml); sarrayDestroy(&salink); return 0; } static void WriteFormattedPix(char *fname, PIX *pix) { l_int32 d; d = pixGetDepth(pix); if (d == 1 || pixGetColormap(pix)) pixWrite(fname, pix, IFF_PNG); else pixWrite(fname, pix, IFF_JFIF_JPEG); return; }