static int openDocument(lua_State *L) {
const char *filename = luaL_checkstring(L, 1);
int cache_size = luaL_optint(L, 2, 10 << 20);
DjvuDocument *doc = (DjvuDocument*) lua_newuserdata(L, sizeof(DjvuDocument));
luaL_getmetatable(L, "djvudocument");
lua_setmetatable(L, -2);
doc->context = ddjvu_context_create("kindlepdfviewer");
if (! doc->context) {
return luaL_error(L, "cannot create context");
}
//printf("## cache_size = %d\n", cache_size);
ddjvu_cache_set_size(doc->context, (unsigned long)cache_size);
doc->doc_ref = ddjvu_document_create_by_filename_utf8(doc->context, filename, TRUE);
if (! doc->doc_ref)
return luaL_error(L, "cannot open DjVu file <%s>", filename);
while (! ddjvu_document_decoding_done(doc->doc_ref))
handle(L, doc->context, True);
doc->pixelformat = ddjvu_format_create(DDJVU_FORMAT_GREY8, 0, NULL);
if (! doc->pixelformat) {
return luaL_error(L, "cannot create DjVu pixelformat for <%s>", filename);
}
ddjvu_format_set_row_order(doc->pixelformat, 1);
ddjvu_format_set_y_direction(doc->pixelformat, 1);
/* dithering bits <8 are ignored by djvulibre */
/* ddjvu_format_set_ditherbits(doc->pixelformat, 4); */
return 1;
}
void guFolderInspector::extractIsbnsFromDjvu(QString fileName, QList<QString> &ISBNList)
{
ctx = ddjvu_context_create("lgUploader"); //ddjvu_document_create_by_filename
doc = ddjvu_document_create_by_filename_utf8(ctx, fileName.toUtf8(), 1);
while (! ddjvu_document_decoding_done(doc));
int numOfPages = ddjvu_document_get_pagenum(doc); //количество страниц - строго!
//QByteArray b = QFile::encodeName(fileName);
//doc = ddjvu_document_create_by_filename(ctx, b, 1);
if(!doc)
qDebug() << "error create doc";
if(!ctx)
qDebug() << "error create context";
const char *lvl = "page";
//начало перебора по страницам
isbnMethods find;
int numOfSearchPages = 15;
//qDebug() << "num of pages " << numOfPages;
if(numOfPages < numOfSearchPages)
{
numOfSearchPages = numOfPages;
}
for (int pageCount = 0 ; pageCount < numOfSearchPages ; pageCount++)
{
miniexp_t r = miniexp_nil;
while ((r = ddjvu_document_get_pagetext(doc, pageCount ,lvl))==miniexp_dummy);
r = miniexp_nth(5, r);
//if ( r == miniexp_nil )
// qDebug() << "r = null";
const char *pageDumpArr = miniexp_to_str( r );
QString pageDump( QString::fromUtf8( pageDumpArr ));
find.findIsbns(pageDump, ISBNList);
//qDebug() << fileName << " content: \n" << pageDump ;
}
//конец перебора по страницам
if (doc)
ddjvu_document_release(doc); //освобождаем контекст документа
if (ctx)
ddjvu_context_release(ctx); //освобождаем контескт приложени¤ (возможно стоит оставить)
}
int
main(int argc, char **argv)
{
int i;
int optc = 0;
char **optv;
const char *infile = 0;
const char *outfile = 0;
FILE *fout;
/* Sort options */
if (! (optv = (char**)malloc(argc*sizeof(char*))))
die(i18n("Out of memory"));
for (i=1; i<argc; i++)
{
char *s = argv[i];
if (s[0]=='-' && s[1]=='-')
s = s+1;
if (!strcmp(s,"-verbose"))
verbose = true;
else if (check_option(s))
optv[optc++] = s;
else if (s[0]=='-' && s[1])
usage();
else if (s[0] && !infile)
infile = s;
else if (s[0] && !outfile)
outfile = s;
else
die(i18n("Incorrect arguments. Try option --help."));
}
if (! infile)
infile = "-";
if (! outfile)
outfile = "-";
/* Open document */
if (! (ctx = ddjvu_context_create(argv[0])))
die(i18n("Cannot create djvu context."));
if (! (doc = ddjvu_document_create_by_filename(ctx, infile, TRUE)))
die(i18n("Cannot open djvu document '%s'."), infile);
while (! ddjvu_document_decoding_done(doc))
handle(TRUE);
/* Open output file */
if (! strcmp(outfile,"-"))
{
fout = stdout;
#if defined(__CYGWIN32__)
setmode(fileno(fout), O_BINARY);
#elif defined(WIN32)
_setmode(_fileno(fout), _O_BINARY);
#endif
}
else if (! (fout = fopen(outfile, "wb")))
die(i18n("Cannot open output file '%s'."), outfile);
/* Create printing job */
if (! (job = ddjvu_document_print(doc, fout, optc, optv)))
die(i18n("Cannot create PostScript conversion job."));
/* Wait until completion and cleanup */
while (! ddjvu_job_done(job))
handle(TRUE);
if (verbose)
fprintf(stderr,"\n");
/* Make sure we get error messages */
tryhelp = false;
if (ddjvu_job_error(job))
handle(FALSE);
if (ddjvu_job_error(job))
die(i18n("PostScript conversion job failed."));
/* Close */
fclose(fout);
if (job)
ddjvu_job_release(job);
if (doc)
ddjvu_document_release(doc);
if (ctx)
ddjvu_context_release(ctx);
return 0;
}
gint32
load_djvu (const gchar * filename,
GimpRunMode runmode,
gboolean preview)
{
GimpPixelRgn rgn_in;
GimpDrawable *drawable;
gint32 volatile image_ID;
gint32 layer_ID;
int x1, y1, x2, y2, width, height;
unsigned char *src = NULL;
int file_length;
ctx = ddjvu_context_create("gimp");
//
doc = ddjvu_document_create_by_filename(ctx,filename, TRUE);
while (! ddjvu_document_decoding_done(doc))
handle(TRUE);
i = ddjvu_document_get_pagenum(doc);
dialog( &pageno ,i);
//processing the page
page = ddjvu_page_create_by_pageno(doc, pageno-1);
while (! ddjvu_page_decoding_done(page))
handle(TRUE);
if (ddjvu_page_decoding_error(page))
{
fprintf(stderr,"unexpected error ");
exit(10);
}
// ddjvu variables
ddjvu_rect_t prect;
ddjvu_rect_t rrect;
ddjvu_format_style_t style;
ddjvu_render_mode_t mode;
ddjvu_format_t *fmt;
int iw = ddjvu_page_get_width(page);
int ih = ddjvu_page_get_height(page);
int dpi = ddjvu_page_get_resolution(page);
ddjvu_page_type_t type = ddjvu_page_get_type(page);
char *image = 0;
int rowsize;
//end of ddjvu variables
style= DDJVU_FORMAT_RGB24;
mode=DDJVU_RENDER_COLOR;
fmt = ddjvu_format_create(style, 0, 0);
ddjvu_format_set_row_order(fmt, 1);
prect.w = iw;
prect.h = ih;
prect.x = 0;
prect.y = 0;
flag_scale=150;
prect.w = (unsigned int) (iw * flag_scale) / dpi;
prect.h = (unsigned int) (ih * flag_scale) / dpi;
rrect = prect;
rowsize = (rrect.w *3);
image = (char*)malloc(rowsize * rrect.h);
//generating page
ddjvu_page_render(page, mode, &prect, &rrect, fmt, rowsize, image);
ddjvu_page_release(page);
char *s =image;
/* create output image */
width = prect.w;
height = prect.h;
x1 = 0;
y1 = 0;
x2 = prect.w;
y2 = prect.h;
image_ID = gimp_image_new (width, height, GIMP_RGB);
layer_ID = gimp_layer_new (image_ID, _("Background"),
width, height, GIMP_RGB, 100, GIMP_NORMAL_MODE);
gimp_image_add_layer (image_ID, layer_ID, 0);
drawable = gimp_drawable_get (layer_ID); // initializes the drawable
gimp_drawable_mask_bounds (drawable->drawable_id, &x1, &y1, &x2, &y2);
gimp_pixel_rgn_init (&rgn_in, drawable, x1, y1,
x2 - x1, y2 - y1, TRUE, TRUE);
gimp_pixel_rgn_set_rect (&rgn_in, image, 0, 0, width, height);
//g_free (buf);
gimp_drawable_flush (drawable);
gimp_drawable_merge_shadow (drawable->drawable_id, TRUE);
gimp_drawable_update (drawable->drawable_id, x1, y1, x2 - x1, y2 - y1);
gimp_image_set_filename (image_ID, filename);
return image_ID;
image =NULL;
//not handling any error
if (doc)
ddjvu_document_release(doc);
if (ctx)
ddjvu_context_release(ctx);
}
int
main(int argc, char **argv)
{
/* Parse options */
int i;
for (i=1; i<argc; i++)
{
char *s = argv[i];
if (s[0] == '-' && s[1] != 0)
{
char buf[32];
const char *opt = s;
const char *arg = strchr(opt, '=');
if (*opt == '-')
opt += 1;
if (*opt == '-')
opt += 1;
if (arg)
{
int l = arg - opt;
if (l > (int)sizeof(buf) - 1)
l = sizeof(buf) - 1;
strncpy(buf, opt, l);
buf[l] = 0;
opt = buf;
arg += 1;
}
if (!strcmp(opt,"page") ||
!strcmp(opt,"pages") )
{
if (!arg && i<argc)
arg = argv[i++];
if (!arg)
die(i18n("option %s needs an argument."), s);
if (pagespec)
fprintf(stderr,i18n("warning: duplicate option --page=...\n"));
pagespec = arg;
}
else if (!strcmp(opt, "detail"))
{
if (!arg)
arg = "char";
if (detail)
fprintf(stderr,i18n("warning: duplicate option --detail.\n"));
detail = arg;
}
else if (!strcmp(opt, "escape") && !arg)
escape = 1;
else
die(i18n("unrecognized option %s."), s);
}
else if (!inputfilename)
inputfilename = s;
else if (! outputfilename)
outputfilename = s;
else
usage();
}
/* Defaults */
if (! inputfilename)
usage();
if (outputfilename)
if (! freopen(outputfilename, "w", stdout))
die(i18n("cannot open output file %s."), outputfilename);
if (! pagespec)
pagespec = "1-$";
/* Create context and document */
if (! (ctx = ddjvu_context_create(argv[0])))
die(i18n("Cannot create djvu context."));
if (! (doc = ddjvu_document_create_by_filename(ctx, inputfilename, TRUE)))
die(i18n("Cannot open djvu document '%s'."), inputfilename);
while (! ddjvu_document_decoding_done(doc))
handle(TRUE);
/* Process all pages */
i = ddjvu_document_get_pagenum(doc);
parse_pagespec(pagespec, i, dopage);
/* Close */
if (doc)
ddjvu_document_release(doc);
if (ctx)
ddjvu_context_release(ctx);
/* Return */
minilisp_finish();
return 0;
}
