int bbdocument_makethumb( char documenttype[],char document[],size_t dokument_size,char **imagebuffer,size_t *imageSize) {
#ifdef BBDOCUMENT_IMAGE
if (strcmp(documenttype,"pdf") == 0) {
//pdf convert
if (((*imagebuffer) = generate_pdf_thumbnail( document, dokument_size, imageSize )) == NULL) {
return 0;
}
return 1;
return 0;
}
else if (canconvert(documenttype) && (((*imagebuffer) = generate_thumbnail( document, dokument_size, imageSize )) == NULL)) {
return 0;
}
#else
#if BBDOCUMENT_IMAGE_BY_CONVERT
if (strcmp(documenttype,"pdf") == 0) {
//pdf convert
/*
if (((*imagebuffer) = generate_pdf_thumbnail_by_convert( document, dokument_size, imageSize )) == NULL) {
return 0;
}
return 1;
*/
return 0;
}
else if (canconvert(documenttype)) {
if ((((*imagebuffer) = generate_thumbnail_by_convert( document, dokument_size, imageSize, documenttype)) == NULL )) {
printf("error: cant run generate_thumbnail_by_convert\n");
return 0;
}
else {
return 1;
}
}
#endif
#endif
//er bare her hvis vi ikke klarte og lage bilde, og da har vi selsakt ikke noe størelse
//printf("imageSize %"PRId64" at %s:%i\n",(*imageSize),__FILE__,__LINE__);
return 0;
}
unsigned char* generate_pdf_thumbnail( const void *document, const size_t size, size_t *new_size ) {
void *image;
void *thumbnail;
FILE *fp;
char command[512];
char documentfile[PATH_MAX];
char imagefile[PATH_MAX];
struct stat inode; // lager en struktur for fstat å returnere.
//tmpfilename = mktemp("/tmp/generateThumbnail_XXXXXX"); //make a unique temporary file name
snprintf(documentfile,sizeof(documentfile),"%s.pdf",converttemptemplate);
snprintf(imagefile,sizeof(imagefile),"%s.png",converttemptemplate);
if ((fp = fopen(documentfile,"wb")) == NULL) {
printf(documentfile);
return NULL;
}
fwrite(document,1,size,fp);
fclose(fp);
snprintf(command,sizeof(command),"%s -dBATCH -dFirstPage=1 -dLastPage=1 -sDEVICE=png256 -dNOPAUSE -dSAFER -sOutputFile=%s %s",gspath,imagefile,documentfile);
printf("runing %s\n",command);
system(command);
if ((fp = fopen(imagefile,"rb")) == NULL) {
printf(imagefile);
return NULL;
}
fstat(fileno(fp),&inode);
image = malloc(inode.st_size);
fread(image,1,inode.st_size,fp);
fclose(fp);
thumbnail = generate_thumbnail(image,inode.st_size,new_size);
free(image);
unlink(documentfile);
unlink(imagefile);
return thumbnail;
}
