/**
* \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;
}
