Model::DjVuDocument::DjVuDocument(ddjvu_context_t* context, ddjvu_document_t* document) :
m_mutex(),
m_context(context),
m_document(document),
m_format(0),
m_indexByName()
{
unsigned int mask[] = {0x00ff0000, 0x0000ff00, 0x000000ff, 0xff000000};
m_format = ddjvu_format_create(DDJVU_FORMAT_RGBMASK32, 4, mask);
ddjvu_format_set_row_order(m_format, 1);
ddjvu_format_set_y_direction(m_format, 1);
const int fileNum = ddjvu_document_get_filenum(m_document);
for(int index = 0; index < fileNum; ++index)
{
ddjvu_fileinfo_t fileinfo;
if(ddjvu_document_get_fileinfo(m_document, index, &fileinfo) != DDJVU_JOB_OK || fileinfo.type != 'P')
{
continue;
}
m_indexByName[QString::fromUtf8(fileinfo.id)] = m_indexByName[QString::fromUtf8(fileinfo.name)] = m_indexByName[QString::fromUtf8(fileinfo.title)] = fileinfo.pageno;
}
}
extern "C" jlong Java_org_ebookdroid_droids_djvu_codec_DjvuDocument_open(JNIEnv *env, jclass cls, jlong contextHandle,
jstring fileName)
{
const char* fileNameString = env->GetStringUTFChars(fileName, NULL);
DEBUG("Opening document: %s", fileNameString);
ddjvu_document_t* doc = ddjvu_document_create_by_filename((ddjvu_context_t*) (contextHandle), fileNameString, FALSE);
env->ReleaseStringUTFChars(fileName, fileNameString);
if (!doc)
ThrowError(env, "DJVU file not found or corrupted.");
ddjvu_fileinfo_t info;
while(ddjvu_document_get_fileinfo(doc, 0, &info) < DDJVU_JOB_OK)
{
waitAndHandleMessages(env, contextHandle);
}
return (jlong) doc;
}
static void
build_index(djvu_document_t *djvu_document, miniexp_t expression, girara_tree_node_t* root)
{
if (expression == miniexp_nil || root == NULL) {
return;
}
int fileno = ddjvu_document_get_filenum(djvu_document->document);
int curfile = 0;
while (miniexp_consp(expression) != 0) {
miniexp_t inner = miniexp_car(expression);
if (miniexp_consp(inner)
&& miniexp_consp(miniexp_cdr(inner))
&& miniexp_stringp(miniexp_car(inner))
&& miniexp_stringp(miniexp_car(inner))
) {
const char* name = miniexp_to_str(miniexp_car(inner));
const char* link = miniexp_to_str(miniexp_cadr(inner));
/* TODO: handle other links? */
if (link == NULL || link[0] != '#') {
expression = miniexp_cdr(expression);
continue;
}
zathura_link_type_t type = ZATHURA_LINK_GOTO_DEST;
zathura_rectangle_t rect;
zathura_link_target_t target = { 0 };
target.destination_type = ZATHURA_LINK_DESTINATION_XYZ;
/* Check if link+1 contains a number */
bool number = true;
const size_t linklen = strlen(link);
for (unsigned int k = 1; k < linklen; k++) {
if (!isdigit(link[k])) {
number = false;
break;
}
}
/* if link starts with a number assume it is a number */
if (number == true) {
target.page_number = atoi(link + 1) - 1;
} else {
/* otherwise assume it is an id for a page */
ddjvu_fileinfo_t info;
int f, i;
for (i=0; i < fileno; i++) {
f = (curfile + i) % fileno;
ddjvu_document_get_fileinfo(djvu_document->document, f, &info);
if (info.id != NULL && !strcmp(link+1, info.id)) {
break;
}
}
/* got a page */
if (i < fileno && info.pageno >= 0) {
curfile = (f+1) % fileno;
target.page_number = info.pageno;
} else {
/* give up */
expression = miniexp_cdr(expression);
continue;
}
}
zathura_index_element_t* index_element = zathura_index_element_new(name);
if (index_element == NULL) {
continue;
}
index_element->link = zathura_link_new(type, rect, target);
if (index_element->link == NULL) {
zathura_index_element_free(index_element);
continue;
}
girara_tree_node_t* node = girara_node_append_data(root, index_element);
/* search recursive */
build_index(djvu_document, miniexp_cddr(inner), node);
}
expression = miniexp_cdr(expression);
}
}
