// gets pages as formatted from beginning, either from a temporary state
// when layout is in progress or final formatted pages
Vec<HtmlPage*> *EbookController::GetPagesFromBeginning()
{
if (pagesFromBeginning) {
CrashIf(FormattingInProgress());
return pagesFromBeginning;
}
if (FormattingInProgress() && (0 != formattingTemp.pagesFromBeginning.Count()))
return &formattingTemp.pagesFromBeginning;
return NULL;
}
// show the status text based on current state
void EbookController::UpdateStatus()
{
UpdateCurrPageNoForPage(pageShown);
size_t pageCount = GetMaxPageCount();
if (fileBeingLoaded) {
ScopedMem<WCHAR> s(str::Format(_TR("Loading file %s..."), fileBeingLoaded));
ctrls->status->SetText(s.Get());
ctrls->progress->SetFilled(0.f);
return;
}
if (FormattingInProgress()) {
ScopedMem<WCHAR> s(str::Format(_TR("Formatting the book... %d pages"), pageCount));
ctrls->status->SetText(s);
ctrls->progress->SetFilled(0.f);
return;
}
ScopedMem<WCHAR> s(str::Format(L"%s %d / %d", _TR("Page:"), currPageNo, pageCount));
ctrls->status->SetText(s);
if (GetPagesFromBeginning())
ctrls->progress->SetFilled(PercFromInt(GetPagesFromBeginning()->Count(), currPageNo));
else
ctrls->progress->SetFilled(0.f);
}
// if we're showing a temp page, it must be part of some collection that we're
// about to delete. Remove the page from its collection so that it doesn't get
// deleted along with it. The caller must assume ownership of the object
HtmlPage *EbookController::PreserveTempPageShown()
{
if (!pageShown)
return NULL;
if (deletePageShown) {
// TODO: this can happen due to a race condition
// (if there are too many WM_PAINT messages?)
CrashIf(true); // not sure if this should ever happen
deletePageShown = false;
return pageShown;
}
if (FormattingInProgress()) {
CrashIf(pagesFromBeginning || pagesFromPage);
if (formattingTemp.pagesFromBeginning.Remove(pageShown))
return pageShown;
if (formattingTemp.pagesFromPage.Remove(pageShown))
return pageShown;
CrashIf(true); // where did the page come from?
return NULL;
}
if (pagesFromBeginning && pagesFromBeginning->Remove(pageShown))
return pageShown;
if (pagesFromPage && pagesFromPage->Remove(pageShown))
return pageShown;
CrashIf(true); // where did the page come from?
return NULL;
}
int EbookController::GetMaxPageCount() const
{
Vec<HtmlPage *> *pagesTmp = pages;
if (incomingPages) {
CrashIf(!FormattingInProgress());
pagesTmp = incomingPages;
}
if (!pagesTmp)
return 0;
return (int)pagesTmp->Count();
}
size_t EbookController::GetMaxPageCount()
{
Vec<HtmlPage *> *pages1 = pagesFromBeginning;
Vec<HtmlPage *> *pages2 = pagesFromPage;
if (FormattingInProgress()) {
CrashIf(pages1 || pages2);
pages1 = &formattingTemp.pagesFromBeginning;
pages2 = &formattingTemp.pagesFromPage;
}
size_t n = 0;
if (pages1 && pages1->Count() > n)
n = pages1->Count();
if (pages2 && pages2->Count() > n)
n = pages2->Count();
return n;
}
// show the status text based on current state
void EbookController::UpdateStatus()
{
int pageCount = GetMaxPageCount();
if (FormattingInProgress()) {
ScopedMem<WCHAR> s(str::Format(_TR("Formatting the book... %d pages"), pageCount));
ctrls->status->SetText(s);
ctrls->progress->SetFilled(0.f);
return;
}
ScopedMem<WCHAR> s(str::Format(L"%s %d / %d", _TR("Page:"), currPageNo, pageCount));
ctrls->status->SetText(s);
#if 1
ctrls->progress->SetFilled(PercFromInt(pageCount, currPageNo));
#else
if (GetPages())
ctrls->progress->SetFilled(PercFromInt(pageCount, currPageNo));
else
ctrls->progress->SetFilled(0.f);
#endif
}