/**
* \copydoc MythUIType::customEvent()
*/
void MythUIImage::customEvent(QEvent *event)
{
if (event->type() == ImageLoadEvent::kEventType)
{
ImageLoadEvent *le = dynamic_cast<ImageLoadEvent*>(event);
if (le->GetParent() != this)
return;
MythImage *image = le->GetImage();
if (!image)
return;
d->m_UpdateLock.lockForRead();
if (le->GetBasefile() != m_Filename)
{
d->m_UpdateLock.unlock();
#if 0
VERBOSE(VB_GUI|VB_FILE|VB_EXTRA, LOC +
QString("customEvent(): Expecting '%2', got '%3'")
.arg(m_Filename).arg(le->GetBasefile()));
#endif
image->DownRef();
return;
}
d->m_UpdateLock.unlock();
QString filename = le->GetFilename();
int number = le->GetNumber();
d->m_UpdateLock.lockForWrite();
if (m_ForceSize.isNull())
SetSize(image->size());
d->m_UpdateLock.unlock();
m_ImagesLock.lock();
if (m_Images[number])
{
// If we got to this point, it means this same MythUIImage
// was told to reload the same image, so we use the newest
// copy of the image.
m_Images[number]->DownRef(); // delete the original
}
m_Images[number] = image;
m_ImagesLock.unlock();
SetRedraw();
d->m_UpdateLock.lockForWrite();
m_LastDisplay = QTime::currentTime();
d->m_UpdateLock.unlock();
}
}
void MythPainter::ExpireImages(int max)
{
if (m_StringExpireList.size() < 1)
return;
while (m_SoftwareCacheSize > max)
{
QString oldmsg = m_StringExpireList.front();
m_StringExpireList.pop_front();
MythImage *oldim = NULL;
if (m_StringToImageMap.contains(oldmsg))
oldim = m_StringToImageMap[oldmsg];
m_StringToImageMap.remove(oldmsg);
if (oldim)
{
m_SoftwareCacheSize -= oldim->bytesPerLine() * oldim->height();
oldim->DownRef();
}
}
}
/**
* \copydoc MythUIType::DrawSelf()
*/
void MythUIImage::DrawSelf(MythPainter *p, int xoffset, int yoffset,
int alphaMod, QRect clipRect)
{
m_ImagesLock.lock();
if (m_Images.size() > 0)
{
d->m_UpdateLock.lockForWrite();
if (m_CurPos >= (uint)m_Images.size())
m_CurPos = 0;
if (!m_Images[m_CurPos])
{
unsigned int origPos = m_CurPos;
m_CurPos++;
while (!m_Images[m_CurPos] && m_CurPos != origPos)
{
m_CurPos++;
if (m_CurPos >= (uint)m_Images.size())
m_CurPos = 0;
}
}
QRect area = GetArea().toQRect();
area.translate(xoffset, yoffset);
int alpha = CalcAlpha(alphaMod);
MythImage *currentImage = m_Images[m_CurPos];
if (currentImage)
currentImage->UpRef();
m_ImagesLock.unlock();
d->m_UpdateLock.unlock();
if (!currentImage)
return;
d->m_UpdateLock.lockForRead();
QRect currentImageArea = currentImage->rect();
if (!m_ForceSize.isNull())
area.setSize(area.size().expandedTo(currentImage->size()));
// Centre image in available space
int x = 0;
int y = 0;
if (area.width() > currentImageArea.width())
x = (area.width() - currentImageArea.width()) / 2;
if (area.height() > currentImageArea.height())
y = (area.height() - currentImageArea.height()) / 2;
if (x > 0 || y > 0)
area.translate(x,y);
QRect srcRect;
m_cropRect.CalculateArea(GetArea());
if (!m_cropRect.isEmpty())
srcRect = m_cropRect.toQRect();
else
srcRect = currentImageArea;
p->DrawImage(area, currentImage, srcRect, alpha);
currentImage->DownRef();
d->m_UpdateLock.unlock();
}
else
m_ImagesLock.unlock();
}
/**
* \brief Load an image
*/
MythImage *MythUIImage::LoadImage(
MythImageReader &imageReader, const QString &imFile,
QSize bForceSize, int cacheMode)
{
QString filename = imFile;
m_loadingImagesLock.lock();
// Check to see if the image is being loaded by us in another thread
if ((m_loadingImages.contains(filename)) &&
(m_loadingImages[filename] == this))
{
VERBOSE(VB_GUI|VB_FILE|VB_EXTRA, LOC + QString(
"MythUIImage::LoadImage(%1), this "
"file is already being loaded by this same MythUIImage in "
"another thread.").arg(filename));
m_loadingImagesLock.unlock();
return NULL;
}
// Check to see if the exact same image is being loaded anywhere else
while (m_loadingImages.contains(filename))
m_loadingImagesCond.wait(&m_loadingImagesLock);
m_loadingImages[filename] = this;
m_loadingImagesLock.unlock();
VERBOSE(VB_GUI|VB_FILE, LOC + QString("LoadImage(%2) Object %3")
.arg(filename).arg(objectName()));
MythImage *image = NULL;
bool bForceResize = false;
bool bFoundInCache = false;
QString imagelabel;
int w = -1;
int h = -1;
if (!bForceSize.isNull())
{
if (bForceSize.width() != -1)
w = bForceSize.width();
if (bForceSize.height() != -1)
h = bForceSize.height();
bForceResize = true;
}
imagelabel = GenImageLabel(filename, w, h);
if (!imageReader.supportsAnimation())
{
image = GetMythUI()->LoadCacheImage(
filename, imagelabel, GetPainter(), (ImageCacheMode) cacheMode);
}
if (image)
{
image->UpRef();
VERBOSE(VB_GUI|VB_FILE, LOC +
QString("LoadImage found in cache :%1: RefCount = %2")
.arg(imagelabel).arg(image->RefCount()));
if (m_isReflected)
image->setIsReflected(true);
bFoundInCache = true;
}
else
{
VERBOSE(VB_GUI|VB_FILE, LOC +
QString("LoadImage Not Found in cache. "
"Loading Directly :%1:").arg(filename));
image = GetPainter()->GetFormatImage();
image->UpRef();
bool ok = false;
if (imageReader.supportsAnimation())
ok = image->Load(imageReader);
else
ok = image->Load(filename);
if (!ok)
{
image->DownRef();
m_loadingImagesLock.lock();
m_loadingImages.remove(filename);
m_loadingImagesCond.wakeAll();
m_loadingImagesLock.unlock();
return NULL;
}
}
if (!bFoundInCache)
{
if (bForceResize)
image->Resize(QSize(w, h), m_preserveAspect);
if (m_isMasked)
{
QRect imageArea = image->rect();
QRect maskArea = m_maskImage->rect();
// Crop the mask to the image
int x = 0;
int y = 0;
if (maskArea.width() > imageArea.width())
x = (maskArea.width() - imageArea.width()) / 2;
if (maskArea.height() > imageArea.height())
y = (maskArea.height() - imageArea.height()) / 2;
if (x > 0 || y > 0)
imageArea.translate(x,y);
d->m_UpdateLock.lockForWrite();
QImage mask = m_maskImage->copy(imageArea);
d->m_UpdateLock.unlock();
image->setAlphaChannel(mask.alphaChannel());
}
if (m_isReflected)
image->Reflect(m_reflectAxis, m_reflectShear, m_reflectScale,
m_reflectLength, m_reflectSpacing);
if (m_isGreyscale)
image->ToGreyscale();
if (!imageReader.supportsAnimation())
GetMythUI()->CacheImage(imagelabel, image);
}
if (image->isNull())
{
VERBOSE(VB_GUI|VB_FILE, LOC + QString("LoadImage Image is NULL :%1:")
.arg(filename));
image->DownRef();
Reset();
m_loadingImagesLock.lock();
m_loadingImages.remove(filename);
m_loadingImagesCond.wakeAll();
m_loadingImagesLock.unlock();
return NULL;
}
image->SetChanged();
m_loadingImagesLock.lock();
m_loadingImages.remove(filename);
m_loadingImagesCond.wakeAll();
m_loadingImagesLock.unlock();
return image;
}
