int PageDirectory::nextRecordPageID(FileHandle &fh, int pageid){
int pgentry = -1;
if (pageid == 0)
while (1) {
if (get_pgnum() != 0)
return get_pgid(0);
if (get_next() == 0)
return -1;
moveToNext(fh);
}
if((pgentry = locateRecordPage(fh, pageid)) == -1)
return -1;
if (pgentry < get_pgnum() - 1)
return get_pgid(pgentry + 1);
while (get_next() != 0) {
moveToNext(fh);
if (get_pgnum() != 0)
return get_pgid(0);
}
return -1;
}
int PageDirectory::firstPageWithFreelen(FileHandle& fh, int len){
while(1){
int num = get_pgnum();
for (int i = 0; i < num; i++)
if (get_pgfreelen(i) > len)
return get_pgid(i);
if(get_next() == 0)
return -1;
moveToNext(fh);
}
return -1;
}
int PageDirectory::allocRecordPage(FileHandle &fh){
int allocated = -1;
while (get_pgnum() == PageDirectory::MaximunEntryNum() &&
get_next() != 0)
moveToNext(fh);
char newrp[PAGE_SIZE], newpd_buffer[PAGE_SIZE];
memset(newrp, 0, sizeof(newrp)); //all zeros is ok
memset(newpd_buffer, 0, sizeof(newpd_buffer)); //all zeros is ok
RecordPage rp(newrp);
fh.appendPage(newrp);
allocated = (int) (fh.getNumberOfPages() - 1);
if (get_next() == 0 && get_pgnum() == PageDirectory::MaximunEntryNum()) {
fh.appendPage(newpd_buffer);
set_next(fh.getNumberOfPages() - 1);
moveToNext(fh);
}
set_pgid(get_pgnum(), allocated);
set_pgfreelen(get_pgnum(), rp.getFreelen());
set_pgnum(get_pgnum() + 1);
return allocated;
}
void imprimeDicionario(Dicionario **param){
Dicionario *aux = *param;
printf("aux %d\n", (int)aux);
if(aux==NULL){
printf("Nao existem palavras na lista\n");
}else do{
printf("%d\t%s\n",aux->palavra,aux->palavra);
}while(moveToNext(&aux));
system("pause");
}
int PageDirectory::locateRecordPage(FileHandle &fh, int pageid){
int pgentry = -1;
while (1) {
for (int i = 0; i < get_pgnum(); i++)
if (get_pgid(i) == pageid) {
pgentry = i;
break;
}
if (pgentry != -1)
break;
if (get_next() == 0)
return -1;
moveToNext(fh);
}
return pgentry;
}
void DrawableSelector::handleInput(SDL_Event event) {
SDL_Keycode keycode = event.key.keysym.sym;
SDL_Scancode scancode = event.key.keysym.scancode;
switch(event.type){
case SDL_KEYDOWN:
if (scancode == SDL_SCANCODE_RIGHT) {
moveToNext();
} else if (scancode == SDL_SCANCODE_LEFT) {
moveToPrevious();
}
break;
default:
break;
}
}
void SwitchEventsWidget::setEventsCursor(const QSharedPointer<EventsCursor> &eventsCursor)
{
EventsCursor *oldCursor = m_eventsCursor.data();
if (m_eventsCursor.data())
{
disconnect(m_previousButton, 0, oldCursor, 0);
disconnect(m_nextButton, 0, oldCursor, 0);
disconnect(oldCursor, 0, this, 0);
}
m_eventsCursor = eventsCursor;
if (m_eventsCursor)
{
connect(m_previousButton, SIGNAL(clicked()), m_eventsCursor.data(), SLOT(moveToPrevious()));
connect(m_nextButton, SIGNAL(clicked()), m_eventsCursor.data(), SLOT(moveToNext()));
connect(eventsCursor.data(), SIGNAL(eventSwitched(EventData*)), this, SLOT(updateButtonsState()));
}
updateButtonsState();
}
void CListBox::moveToPos(size_t which)
{
//Calculate new position
size_t maxPossible;
if (totalSize > items.size())
maxPossible = totalSize - items.size();
else
maxPossible = 0;
size_t newPos = std::min(which, maxPossible);
//If move distance is 1 (most of calls from Slider) - use faster shifts instead of resetting all items
if (first - newPos == 1)
moveToPrev();
else if (newPos - first == 1)
moveToNext();
else if (newPos != first)
{
first = newPos;
reset();
}
}
