void qtauMeterBar::paintEvent(QPaintEvent *event)
{
// draw bg
int hSt = event->rect().x() + _offset;
int barWidth = _ns.note.width() * _ns.notesInBar;
int firstBar = hSt / barWidth;
int cacheOffset = hSt - firstBar * barWidth;
QRect screenRect(event->rect());
QRect cacheRect(screenRect);
cacheRect.moveLeft(cacheRect.x() + cacheOffset);
QPainter p(this);
p.drawPixmap(screenRect, *_bgCache, cacheRect);
// draw bar numbers
if (cacheOffset != 0)
firstBar++; // now it's first visible bar line
int lastBar = (hSt + event->rect().width()) / barWidth;
QVector<QPainter::PixmapFragment> cachedLabels;
int barScreenOffset = firstBar * barWidth - _offset;
for (int i = firstBar; i <= lastBar; ++i, barScreenOffset += barWidth)
cachedLabels.append(QPainter::PixmapFragment::create(
QPointF(barScreenOffset + c_lblcache_hoff, c_lblcache_voff),
QRectF(0, i * c_lblcache_line_height, c_lblcache_line_width, c_lblcache_line_height)));
if (!cachedLabels.isEmpty())
p.drawPixmapFragments(cachedLabels.data(), cachedLabels.size(), *_labelCache);
}
void CacheSpaceScene::validateItemsCacheImpl() const
{
Q_ASSERT(m_itemsCacheInvalid);
if (m_scene->count() == 0)
{
clearItemsCache();
m_itemsCacheInvalid = false;
return;
}
auto_value<bool> inUse(m_cacheIsInUse, true);
QRect cacheRect(scrollOffset(), window().size());
QPoint origin = originPos();
int count = m_scene->count();
auto it = m_items.begin();
QVector<SharedPtr<CacheItem>> newItems;
for (int id(0); id < count; ++id)
{
if (!cacheRect.intersects(m_scene->itemRect(ID(id))))
continue;
SharedPtr<CacheItem> newItem;
while ((it != m_items.end()) && (index((*it)->id) <= id))
{
if (index((*it)->id) == id)
{
(*it)->correctRectangles(m_scrollDelta);
newItem = *it;
break;
}
++it;
}
if (newItem.isNull())
{
newItem = createCacheItem(ID(id));
// correct rectangle
newItem->rect.translate(origin);
}
newItems.append(newItem);
}
m_items.swap(newItems);
// clear offset
m_scrollDelta = QPoint(0, 0);
m_sizeDelta = QSize(0, 0);
// mark items as valid
m_itemsCacheInvalid = false;
}
void ossimGui::ImageWidgetJob::start()
{
if(m_inputSource.valid())
{
OpenThreads::ScopedLock<OpenThreads::Mutex> lock(m_imageWidgetJobMutex);
QTime start = QTime::currentTime();
ossimDrect cacheRect(m_tileCache->getRect());
// ossimDpt ulCachePt = cacheRect.ul();
ossimIrect rect;
ossimDpt ul;
// Because the cache rect is a sub rect of the scroll we need the upper left which starts at offset 0,0 in scroll space
m_cacheToView.map(0.0, 0.0, &ul.x, &ul.y);
while(m_tileCache->nextInvalidTile(rect) && (!isCanceled()))
{
// shift to zero based rectangle and then set back for opying purposes.
ossimRefPtr<ossimImageData> data =m_inputSource->getTile(rect+ul);
data->setImageRectangle(rect);
ossimGui::Image img(data.get());
if(data.valid())
{
m_tileCache->addTile(ossimGui::Image(data.get(), true));
}
else
{
img = QImage(rect.width(), rect.height(), QImage::Format_RGB32);
img.fill(0);
img.setOffset(QPoint(rect.ul().x, rect.ul().y));
m_tileCache->addTile(img);
}
QTime end = QTime::currentTime();
if(start.msecsTo(end) >= m_maxProcessingTime)
{
break;
}
}
}
}
