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#include "CHM.h"
#include "chm_lib.h"
#include <qstring.h>
#include <qstringlist.h>
#include <stdio.h>
#include <qimage.h>
#include <qpixmap.h>
#ifdef USEQPE
#include <qpe/global.h>
#endif
#ifndef __STATIC
extern "C"
{
CExpander* newcodec() { return new CHM; }
}
#endif
static int _print_ui_index(struct chmFile *h, struct chmUnitInfo *ui,
void *context)
{
CHM *chm = (CHM *)context;
QString temp = "<tr>";
char buff[1024];
sprintf( buff,"<td align=right>%8d\n</td><td><a href=\"%s\">%s</a></td></tr>",(int)ui->length, ui->path, ui->path);
temp += buff;
chm->addContent(temp);
return CHM_ENUMERATOR_CONTINUE;
}
static int _get_hhc (struct chmFile *h, struct chmUnitInfo *ui,
void *context)
{
CHM *chm = (CHM *)context;
QString PathName = ui->path;
if (PathName.find(".hhc") > -1) {
chm->setPath(PathName);
}
return CHM_ENUMERATOR_CONTINUE;
}
CHM::CHM() {
chmFile = NULL;
chmPath = "";
chmHHCPath = "";
chmBuffer = "";
bufpos = 0;
}
CHM::~CHM() {
if (chmFile != NULL)
chm_close(chmFile);
}
void CHM::suspend() {
#ifdef USEQPE
bSuspended = true;
//suspos = gztell(file);
chm_close(chmFile);
chmFile = NULL;
sustime = time(NULL);
#endif
}
void CHM::unsuspend() {
#ifdef USEQPE
if (bSuspended)
{
bSuspended = false;
int delay = time(NULL) - sustime;
if (delay < 10)
{
Global::statusMessage("Stalling");
sleep(10-delay);
}
chmFile = chm_open(fname);
for (int i = 0; chmFile == NULL && i < 5; i++) {
Global::statusMessage("Stalling");
sleep(5);
chmFile = chm_open(fname);
}
if (chmFile == NULL) {
QMessageBox::warning(NULL, PROGNAME, "Couldn't reopen file");
exit(0);
}
//suspos = gzseek(file, suspos, SEEK_SET);
}
#endif
}
void CHM::addContent(QString content) {
chmBuffer += content;
}
void CHM::FillHomeContent() {
unsuspend();
if (chmHHCPath != "") {
const char *ext;
char buffer[65536];
unsigned int swath, offset;
QString tmp="";
QString HTML="";
/* try to find the file */
const char *filename = (const char *)chmHHCPath;
if (chm_resolve_object(chmFile, filename, &m_ui) != CHM_RESOLVE_SUCCESS)
{
chmBuffer = "HELP";
fsize = chmBuffer.length();
return;
}
m_homestart = m_ui.start;
m_homeend = m_homestart + m_ui.length;
swath = 65536;
offset = 0;
fsize = m_ui.length;
while (offset < m_ui.length)
{
if ((m_ui.length - offset) < 65536)
swath = m_ui.length - offset;
else
swath = 65536;
swath = (int)chm_retrieve_object(chmFile, &m_ui, (unsigned char *) buffer, offset, swath);
tmp += buffer;
offset += swath;
}
HTML +="<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML//EN>\r\n";
HTML +="<HTML>\r\n";
HTML +="<BODY>\r\n";
HTML +="<h2>Home Page</h2>\r\n";
HTML +="<h3>\r\n";
QStringList qsl = QStringList::split("\r\n",tmp);
QString NameFind ="<param name=\"Name\" value=\"";
QString LocalFind = "<param name=\"Local\" value=\"";
QString ULOpenFind = "<UL>";
QString LIOpenFind = "<LI>";
QString ULCloseFind = "</UL>";
QString Name = "";
QString Local = "";
for ( QStringList::Iterator it = qsl.begin(); it != qsl.end(); ++it ) {
QString Line = (*it);
int NamePos = Line.find( NameFind);
int LocalPos = Line.find( LocalFind);
if (NamePos > -1) {
Name = Line.mid(NamePos+NameFind.length(),Line.length());
Name = Name.left(Name.length() - 2);
}
if (LocalPos > -1) {
Local = Line.mid(LocalPos+LocalFind.length(),Line.length());
Local = Local.left(Local.length() - 2);
if (Name != "") {
HTML += "<br>\r\n<a href=";
HTML += Local;
HTML += ">";
HTML += Name;
HTML += "</a>\r\n";
Name = "";
}
}
}
HTML +="</h3>";
HTML +="</BODY>\r\n";
HTML +="</HTML>\r\n";
chmHomeBuffer = HTML;
chmBuffer = HTML;
fsize = chmBuffer.length();
m_currentstart = m_ui.start;
m_currentend = m_currentstart+chmBuffer.length();
}
}
bool CHM::FillBuffer()
{
unsuspend();
bool bRetVal = false;
char buffer[65536];
int swath, offset;
chmBuffer = "";
swath = 65536;
offset = 0;
fsize = m_ui.length;
while (offset < m_ui.length)
{
if ((m_ui.length - offset) < 65536)
swath = m_ui.length - offset;
else
swath = 65536;
swath = (int)chm_retrieve_object(chmFile, &m_ui, (unsigned char *) buffer, offset, swath);
chmBuffer += buffer;
offset += swath;
}
//There seems to be a ton of gobbledygook at the end that is reminiscent of the hhc file - remove it
QString temp = chmBuffer.lower();
int lpos = temp.find("</html");
if (lpos > -1) {
chmBuffer.truncate(lpos);
chmBuffer = chmBuffer+"</HTML>";
}
fsize = chmBuffer.length();
bufpos = 0;
bRetVal = true;
m_currentstart = m_ui.start;
m_currentend = m_currentstart+chmBuffer.length();
return bRetVal;
}
bool CHM::FillContent() {
unsuspend();
bool bRetVal = false;
if (chmPath != "") {
/* try to find the file */
const char *filename = (const char *)chmPath;
if (chm_resolve_object(chmFile, filename, &m_ui) != CHM_RESOLVE_SUCCESS)
{
fsize = chmBuffer.length();
return bRetVal;
}
char buffer[65536];
int swath, offset;
chmBuffer = "";
swath = 65536;
offset = 0;
fsize = m_ui.length;
while (offset < m_ui.length)
{
if ((m_ui.length - offset) < 65536)
swath = m_ui.length - offset;
else
swath = 65536;
swath = (int)chm_retrieve_object(chmFile, &m_ui, (unsigned char *) buffer, offset, swath);
chmBuffer += buffer;
offset += swath;
}
//There seems to be a ton of gobbledygook at the end that is reminiscent of the hhc file - remove it
QString temp = chmBuffer.lower();
int lpos = temp.find("</html");
if (lpos > -1) {
chmBuffer.truncate(lpos);
chmBuffer = chmBuffer+"</HTML>";
}
fsize = chmBuffer.length();
bufpos = 0;
m_currentstart = m_ui.start;
m_currentend = m_currentstart+chmBuffer.length();
bRetVal = true;
}
return bRetVal;
}
bool CHM::getFile(const QString& _href, const QString& ) {
QString href = "/" + _href;
qDebug("Got:%s", (const char*)href);
bool bRetVal = false;
QString temp = chmPath;
chmPath = href;
if (FillContent()) {
qDebug("Got it");
bRetVal = true;
} else {
qDebug("Missed");
chmPath = temp;
FillContent();
}
return bRetVal;
}
QImage *CHM::getPicture(const QString& href) {
QImage *img = NULL;
QString PicRef = "/"+href;
struct chmUnitInfo ui;
const char *ext;
/* try to find the file */
const char *filename = (const char *)PicRef;
if (chm_resolve_object(chmFile, filename, &ui) != CHM_RESOLVE_SUCCESS)
{
qDebug ("Could not resolve image");
return img;
}
if (ui.length > 0) {
char *temp = new char[ui.length];
char buffer[65536];
int swath, offset;
swath = 65536;
offset = 0;
while (offset < ui.length)
{
if ((ui.length - offset) < 65536)
swath = ui.length - offset;
else
swath = 65536;
swath = (int)chm_retrieve_object(chmFile, &ui, (unsigned char *) buffer, offset, swath);
memcpy( (void *) (temp + offset), (void *)&buffer, swath );
offset += swath;
}
QByteArray qba;
qba.setRawData( (const char *)temp, ui.length);
QPixmap qpm(qba);
img = new QImage(qpm.convertToImage());
qba.resetRawData((const char *)temp, ui.length);
delete[] temp;
}
return img;
}
int CHM::OpenFile(const char *src) {
if (chmFile != NULL) chm_close(chmFile);
struct stat _stat;
stat(src,&_stat);
fsize = _stat.st_size;
chmFile = chm_open(src);
if (chmFile != NULL) {
chm_enumerate(chmFile,
CHM_ENUMERATE_ALL,
_get_hhc,
(void *)this);
if ( chmPath != "") {
setHomePath(chmPath);
FillHomeContent();
}
}
m_homepos = locate();
qDebug("Home:%u", m_homepos);
return (chmFile==NULL);
}
int CHM::getch() {
if ( (bufpos+1) >= chmBuffer.length() )
return EOF;
#ifdef _WINDOWS
QChar letter = chmBuffer.at(bufpos++);
#else
QChar letter = chmBuffer[bufpos++];
#endif
return (int)(char)letter;
}
void CHM::getch(tchar& ch, CStyle& sty)
{
int ich = getch();
ch = (ich == EOF) ? UEOF : ich;
}
void CHM::start2endSection()
{
m_currentstart = m_ui.start;
m_currentend = m_currentstart+chmBuffer.length();
}
unsigned int CHM::locate() {
return m_currentstart+bufpos;
}
void CHM::locate(unsigned int n) {
if (n == 0) n = m_homepos;
if (n >= m_homestart && n < m_homeend)
{
FillHomeContent();
bufpos = n - m_homestart;
start2endSection();
qDebug("Home:%u:<%u, %u, %u>", m_ui.start, m_currentstart, n, m_currentend);
}
else if (n >= m_currentstart && n < m_currentend)
{
bufpos = n - m_currentstart;
}
else if (CHM_RESOLVE_FAILURE == chm_resolve_location(chmFile, n/4, &m_ui))
{
qDebug("Resolve failure");
FillHomeContent();
bufpos = 0;
start2endSection();
qDebug("Home:%u:<%u, %u, %u>", m_ui.start, m_currentstart, n, m_currentend);
}
else
{
qDebug("Resolve success");
FillBuffer();
start2endSection();
bufpos=n-m_currentstart;
qDebug("Not Home:%u:<%u, %u, %u>", m_ui.start, m_currentstart, n, m_currentend);
}
}
void CHM::sizes(unsigned long& _file, unsigned long& _text) {
_text = _file = fsize;
}
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