void EbookController::CloseCurrentDocument()
{
ctrls->page->SetPage(NULL);
StopFormattingThread();
DeletePageShown();
DeletePages(&pagesFromBeginning);
DeletePages(&pagesFromPage);
doc.Delete();
formattingTemp.reparseIdx = 0; // mark as being laid out from the beginning
pageSize = SizeI(0, 0);
}
void EbookController::TriggerBookFormatting()
{
Size s = ctrls->page->GetDrawableSize();
SizeI size(s.Width, s.Height);
if (size.IsEmpty()) {
// we haven't been sized yet
return;
}
CrashIf(size.dx < 100 || size.dy < 40);
if (!doc.IsEbook())
return;
if (pageSize == size) {
//lf("EbookController::TriggerBookFormatting() - skipping layout because same as last size");
return;
}
//lf("(%3d,%3d) EbookController::TriggerBookFormatting", dx, dy);
pageSize = size; // set it early to prevent re-doing layout at the same size
HtmlPage *newPage = PreserveTempPageShown();
if (newPage) {
CrashIf((formattingTemp.reparseIdx != 0) &&
(formattingTemp.reparseIdx != newPage->reparseIdx));
} else {
CrashIf(formattingTemp.reparseIdx != 0);
}
StopFormattingThread();
DeletePages(&pagesFromBeginning);
DeletePages(&pagesFromPage);
CrashIf(formattingTemp.pagesFromBeginning.Count() > 0);
CrashIf(formattingTemp.pagesFromPage.Count() > 0);
ShowPage(newPage, newPage != NULL);
HtmlFormatterArgs *args = CreateFormatterArgsDoc(doc, size.dx, size.dy, &textAllocator);
formattingThread = new EbookFormattingThread(doc, args, this);
formattingThreadNo = formattingThread->GetNo();
CrashIf(formattingTemp.reparseIdx < 0);
CrashIf(formattingTemp.reparseIdx > (int)args->htmlStrLen);
formattingThread->reparseIdx = formattingTemp.reparseIdx;
formattingThread->Start();
UpdateStatus();
}
void EbookController::CloseCurrentDocument()
{
ctrls->pagesLayout->GetPage1()->SetPage(nullptr);
ctrls->pagesLayout->GetPage2()->SetPage(nullptr);
StopFormattingThread();
DeletePages(&pages);
doc.Delete();
pageSize = SizeI(0, 0);
}
// stop layout thread (if we're closing a document we'll delete
// the ebook data, so we can't have the thread keep using it)
void EbookController::StopFormattingThread()
{
if (!formattingThread)
return;
formattingThread->RequestCancel();
bool ok = formattingThread->Join();
CrashIf(!ok);
delete formattingThread;
formattingThread = nullptr;
formattingThreadNo = -1;
DeletePages(&incomingPages);
}
void EbookController::GoToPage(int newPageNo)
{
if ((newPageNo < 1) || (newPageNo == currPageNo))
return;
if (!GetPagesFromBeginning())
return;
if ((size_t)newPageNo > GetPagesFromBeginning()->Count())
return;
ShowPage(GetPagesFromBeginning()->At(newPageNo - 1), false);
// even if we were showing a page from pagesFromPage before, we've
// transitioned to using pagesFromBeginning so we no longer need pagesFromPage
DeletePages(&pagesFromPage);
//UpdateStatus();
}
void EbookController::HandlePagesFromEbookLayout(EbookFormattingData *ft)
{
if (formattingThreadNo != ft->threadNo) {
// this is a message from cancelled thread, we can disregard
lf("EbookController::HandlePagesFromEbookLayout() thread msg discarded, curr thread: %d, sending thread: %d", formattingThreadNo, ft->threadNo);
DeleteEbookFormattingData(ft);
return;
}
//lf("EbookController::HandlePagesFromEbookLayout() %d pages, ft=0x%x", ft->pageCount, (int)ft);
if (incomingPages) {
for (size_t i = 0; i < ft->pageCount; i++) {
incomingPages->Append(ft->pages[i]);
}
int pageNo = PageForReparsePoint(incomingPages, currPageReparseIdx);
if (pageNo > 0) {
Vec<HtmlPage*> *toDelete = pages;
pages = incomingPages;
incomingPages = nullptr;
DeletePages(&toDelete);
GoToPage(pageNo, false);
}
} else {
CrashIf(!pages);
for (size_t i = 0; i < ft->pageCount; i++) {
pages->Append(ft->pages[i]);
}
}
if (ft->finished) {
CrashIf(!pages);
StopFormattingThread();
}
UpdateStatus();
// don't call DeleteEbookFormattingData since
// ft->pages are now owned by incomingPages or pages
delete ft;
}
