本文整理汇总了C++中CustomItem::pixmap方法的典型用法代码示例。如果您正苦于以下问题：C++ CustomItem::pixmap方法的具体用法？C++ CustomItem::pixmap怎么用？C++ CustomItem::pixmap使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类CustomItem的用法示例。
在下文中一共展示了CustomItem::pixmap方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: prepareImage
void ViewWorkerThread::prepareImage(QList<QGraphicsItem*> items)
{
stopLoading();
QVector<CustomItem*> itemsNotLoaded;
QVector<CustomItem*> itemsBeingProcessed;
//Find all items whose images are not loaded.
for (int index = 0; index < items.count(); index++)
{
CustomItem* item = dynamic_cast<CustomItem*> (items[index]);
if ((true == item->pixmap().isNull())
||
((nItemWidth > (item->pixmap().width() + CustomItem::getItemMargin()))
&&
(nItemHeight > (item->pixmap().height() + CustomItem::getItemMargin()))))
{
if (EProcessingState::eNone == item->processingState())
{
itemsNotLoaded.push_front(item);
}
else if (EProcessingState::eProcessed == item->processingState())
{
item->updateItem();
item->setProcessing(EProcessingState::eRenderred);
}
}
else if ((EProcessingState::eNone != item->processingState())
&&
(EProcessingState::eRenderred != item->processingState()))
{
item->updateItem();
item->setProcessing(EProcessingState::eRenderred);
}
}
CustomGraphicsView* parentView = dynamic_cast<CustomGraphicsView*> (parent());
QList<QGraphicsItem *> viewItems = parentView->items();
//Clear images from items that are not currently viewed.
//(To optimize memory consumption)
for (int index = 0; index < viewItems.count(); index++)
{
if (!items.contains(viewItems[index]))
{
CustomItem* item = dynamic_cast<CustomItem*> (viewItems[index]);
item->setPixmap(0);
item->setProcessing(EProcessingState::eNone);
}
}
if (itemsNotLoaded.isEmpty())
{
return;
}
m_ItemsNotLoaded.clear();
m_ItemsNotLoaded = itemsNotLoaded;
//Load images.
m_pImageLoadThreadWatcher->setFuture(QtConcurrent::mapped(m_ItemsNotLoaded, readEmf));
}