Queue_t * queueDoubleResize(Queue_t * queue, bool freeOld) {
Queue_t * newQueue = queueResize(queue, queue->size * 2);
if (freeOld) {
queueDestroy(queue);
}
return newQueue;
}
QueueClass *queueInit(QueueClass *queue, int elementSize, int elementMaxCount) {
mutexInit(&queue->writeMutex);
mutexInit(&queue->readMutex);
eventSourceInit(&queue->writeEventSource);
eventSourceInit(&queue->readEventSource);
queue->elementSize = elementSize;
queue->elementMaxCount = 0;
queue->buffer = NULL;
queueResize(queue, elementMaxCount);
return queue;
}
void CqFramebuffer::disconnect()
{
Fl::lock();
if(m_associatedImage)
{
boost::function<void(int,int,int,int)> f;
m_associatedImage->setUpdateCallback(f);
}
//label("");
boost::shared_ptr<CqImage> t;
m_associatedImage = t;
m_uiImageWidget->setImage(t);
queueResize();
Fl::unlock();
}
void CqFramebuffer::connect(boost::shared_ptr<CqImage>& image)
{
disconnect();
m_associatedImage = image;
Fl::lock();
m_uiImageWidget->setImage(image);
queueResize();
// update window title
boost::function<void(int,int,int,int)> f;
f = boost::bind(&CqFramebuffer::update, this, _1, _2, _3, _4);
image->setUpdateCallback(f);
Fl::unlock();
}
void CqFramebuffer::incSubImage(bool increase)
{
boost::shared_ptr<Aqsis::CqImage>& image = m_uiImageWidget->image();
if(!image)
return;
// Reset zoom level for safety.
/// \todo Fix this when we get a proper image zooming widget!
image->setZoom(1);
if(increase)
image->loadNextSubImage();
else
image->loadPrevSubImage();
m_scroll->redraw();
queueResize();
}
void CqFramebuffer::incZoom(TqInt increment)
{
boost::shared_ptr<Aqsis::CqImage>& image = m_uiImageWidget->image();
if(!image)
return;
TqInt newZoom = image->zoom() + increment;
// Only zoom if the new image will be "small enough".
/// \todo This restriction should be lifted once we fix the zoom support with a proper image zooming widget.
if( newZoom > 0 && (increment < 0
|| newZoom * image->imageWidth() * image->imageHeight() < 8000*8000) )
{
image->setZoom(newZoom);
m_scroll->redraw();
queueResize();
}
}
