// layout pages from a given reparse point (beginning if NULL)
// returns true if layout thread was cancelled
bool EbookFormattingThread::Format(int reparseIdx)
{
bool fromBeginning = (0 == reparseIdx);
//lf("Started laying out mobi, fromBeginning=%d", (int)fromBeginning);
int totalPageCount = 0;
Timer t(true);
formatterArgs->reparseIdx = reparseIdx;
HtmlFormatter *formatter = CreateFormatter(doc, formatterArgs);
int lastReparseIdx = reparseIdx;
for (HtmlPage *pd = formatter->Next(); pd; pd = formatter->Next()) {
CrashIf(pd->reparseIdx < lastReparseIdx);
lastReparseIdx = pd->reparseIdx;
if (WasCancelRequested()) {
lf("layout cancelled");
for (int i = 0; i < pageCount; i++) {
delete pages[i];
}
pageCount = 0;
delete pd;
// send a 'finished' message so that the thread object gets deleted
SendPagesIfNecessary(true, true, fromBeginning);
delete formatter;
return true;
}
pages[pageCount++] = pd;
++totalPageCount;
// we send first 5 pages one by one and the rest in batches to minimize user-visible
// latency but also not overload ui thread
SendPagesIfNecessary(totalPageCount < 5, false, fromBeginning);
CrashIf(pageCount >= dimof(pages));
}
// this is the last message only if we're laying out from the beginning
bool finished = fromBeginning;
SendPagesIfNecessary(true, finished, fromBeginning);
//lf("Laying out took %.2f ms", t.GetTimeInMs());
delete formatter;
return false;
}
// layout pages from a given reparse point (beginning if nullptr)
// returns true if layout thread was cancelled
bool EbookFormattingThread::Format()
{
//lf("Started laying out ebook, reparseIdx=%d", reparseIdx);
int totalPageCount = 0;
formatterArgs->reparseIdx = 0;
pagesAfterReparseIdx = 0;
HtmlFormatter *formatter = doc.CreateFormatter(formatterArgs);
for (HtmlPage *pd = formatter->Next(); pd; pd = formatter->Next()) {
if (WasCancelRequested()) {
//lf("layout cancelled");
for (int i = 0; i < pageCount; i++) {
delete pages[i];
}
pageCount = 0;
delete pd;
// send a 'finished' message so that the thread object gets deleted
SendPagesIfNecessary(true, true /* finished */);
delete formatter;
return true;
}
pages[pageCount++] = pd;
++totalPageCount;
if (pd->reparseIdx >= reparseIdx) {
++pagesAfterReparseIdx;
}
// force sending accumulated pages
bool force = false;
if (2 == pagesAfterReparseIdx) {
force = true;
//lf("EbookFormattingThread::Format: sending pages because pagesAfterReparseIdx == %d", pagesAfterReparseIdx);
}
SendPagesIfNecessary(force, false);
CrashIf(pageCount >= dimof(pages));
}
SendPagesIfNecessary(true, true /* finished */);
delete formatter;
return false;
}
