C++ (Cpp) QueueItem::setPriority Examples

Example #1

void QueueDialog::btnMoveBottom_clicked()
{
	QueueItem* current = (QueueItem*) getCurrentList()->selectedItem();
	if(current == 0)
		return;
	
	if(current->getPriority() == 0)
		return;
	
	QueueItem* previous = (QueueItem*) current->itemBelow();
	
	if(previous == 0)
		return;	
	
	if(previous->getPriority() == 0)
		return;
	
	int p = previous->getPriority();
	
	while(previous != 0 && previous->getPriority() != 0)
	{
		p = previous->getPriority();
		previous->setPriority(p + 1);
		
		previous = (QueueItem*) previous->itemBelow();
	}
	
	current->setPriority(p);
	getCurrentList()->sort();
}

Example #2

void QueueDialog::btnDequeue_clicked()
{
	QueueItem* current = (QueueItem*) getCurrentList()->selectedItem();
	if(current == 0)
		return;
	if(current->getPriority() == 0)
		return;
			
	current->setPriority(0);
	getCurrentList()->sort();
}

Example #3

void QueueDialog::btnMoveUp_clicked()
{	
	QueueItem* current = (QueueItem*) getCurrentList()->selectedItem();
	if(current == 0)
		return;
	
	if(current->getPriority() == 0)
		return;
	
	QueueItem* previous = (QueueItem*) current->itemAbove();
	if(previous == 0)
		return;
	else
	{
		int tmp = previous->getPriority();
		previous->setPriority(current->getPriority());
		current->setPriority(tmp);
		getCurrentList()->sort();
	}
}

Example #4

void QueueDialog::enqueue(QueueItem* curr)
{
	QueueItem* current = curr == 0 ? (QueueItem*) getCurrentList()->selectedItem() : curr;
	if(current == 0)
		return;
	if(current->getPriority() != 0)
		return;
	
	QueueItem* item = (QueueItem*) getCurrentList()->firstChild();
	if(item == 0)
		return;
	
	while(item != 0)
	{
		if(item->getPriority() != 0)
			item->setPriority(item->getPriority() + 1);
		item = (QueueItem*) item->itemBelow();
	}
	
	current->setPriority(1);
	getCurrentList()->sort();
}