bool ossimGui::StaticTileImageCache::addTile(const QImage& image)
{
OpenThreads::ScopedLock<OpenThreads::Mutex> lock(m_mutex);
bool result = false;
ossimIrect tileRect(image.offset().x(),
image.offset().y(),
image.offset().x() + (image.width()-1),
image.offset().y() + (image.height()-1));
ossimIrect cacheRect = m_cacheRect;
if(tileRect.intersects(cacheRect))
{
ossimIrect clipRect = tileRect.clipToRect(cacheRect);
// now fill the clipped rect
ossim_uint32 srcY = clipRect.ul().y-tileRect.ul().y;
ossim_uint32 srcX = clipRect.ul().x-tileRect.ul().x;
ossim_uint32 destY = clipRect.ul().y-cacheRect.ul().y;
ossim_uint32 destX = clipRect.ul().x-cacheRect.ul().x;
ossimIpt offset = tileRect.ul() - cacheRect.ul();
ossim_uint32 x,y;
for(y = 0; y < clipRect.height(); ++y)
{
ossim_uint32* cachePtr = ((ossim_uint32*)m_cache->scanLine(y+destY))+destX;
ossim_uint32* tilePtr = ((ossim_uint32*)image.scanLine(y+srcY))+srcX;
for(x = 0; x < clipRect.width(); ++x)
{
*cachePtr = *tilePtr;
++cachePtr;
++tilePtr;
}
}
ossimIpt tilePoint(tileRect.ul());
for(y = 0; y < tileRect.height(); y+=m_tileSize.y)
{
tilePoint.x = tileRect.ul().x;
for(x = 0; x < tileRect.width(); x+=m_tileSize.x)
{
ossim_int32 idx = getTileIndex(m_cacheRect, m_numberOfTiles, tilePoint);
if(idx>=0)
{
m_validTileArray[idx] = true;
}
tilePoint.x+= m_tileSize.x;
}
tilePoint.y+=m_tileSize.y;
}
result = true;
}
return result;
}
void Waveform::paintEvent(QPaintEvent * /*event*/)
{
QPainter painter(this);
painter.fillRect(rect(), Qt::black);
if (m_active) {
WAVEFORM_PAINT_DEBUG << "Waveform::paintEvent"
<< "windowPosition" << m_windowPosition
<< "windowLength" << m_windowLength;
qint64 pos = m_windowPosition;
const qint64 windowEnd = m_windowPosition + m_windowLength;
int destLeft = 0;
int destRight = 0;
while (pos < windowEnd) {
const TilePoint point = tilePoint(pos);
WAVEFORM_PAINT_DEBUG << "Waveform::paintEvent" << "pos" << pos
<< "tileIndex" << point.index
<< "positionOffset" << point.positionOffset
<< "pixelOffset" << point.pixelOffset;
if (point.index != NullIndex) {
const Tile &tile = m_tiles[point.index];
if (tile.painted) {
const qint64 sectionLength = qMin((m_tileLength - point.positionOffset),
(windowEnd - pos));
Q_ASSERT(sectionLength > 0);
const int sourceRight = tilePixelOffset(point.positionOffset + sectionLength);
destRight = windowPixelOffset(pos - m_windowPosition + sectionLength);
QRect destRect = rect();
destRect.setLeft(destLeft);
destRect.setRight(destRight);
QRect sourceRect(QPoint(), m_pixmapSize);
sourceRect.setLeft(point.pixelOffset);
sourceRect.setRight(sourceRight);
WAVEFORM_PAINT_DEBUG << "Waveform::paintEvent" << "tileIndex" << point.index
<< "source" << point.pixelOffset << sourceRight
<< "dest" << destLeft << destRight;
painter.drawPixmap(destRect, *tile.pixmap, sourceRect);
destLeft = destRight;
if (point.index < m_tiles.count()) {
pos = tilePosition(point.index + 1);
WAVEFORM_PAINT_DEBUG << "Waveform::paintEvent" << "pos ->" << pos;
} else {
// Reached end of tile array
WAVEFORM_PAINT_DEBUG << "Waveform::paintEvent" << "reached end of tile array";
break;
}
} else {
// Passed last tile which is painted
WAVEFORM_PAINT_DEBUG << "Waveform::paintEvent" << "tile" << point.index << "not painted";
break;
}
} else {
// pos is past end of tile array
WAVEFORM_PAINT_DEBUG << "Waveform::paintEvent" << "pos" << pos << "past end of tile array";
break;
}
}
WAVEFORM_PAINT_DEBUG << "Waveform::paintEvent" << "final pos" << pos << "final x" << destRight;
}
}
