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#include "nex.h"
struct BitmapPool::PoolItem
{
PoolItem() : used(false) {}
bool used;
Bitmap bitmap;
};
BitmapPool::BitmapPool()
{
}
BitmapPool::~BitmapPool()
{
}
Bitmap *BitmapPool::get(bool clear)
{
mMutex.lock();
BitmapPool::PoolItem *p=0;
for (QPtrListIterator<BitmapPool::PoolItem> i(mBitmaps); i.current(); ++i)
{
if (!(*i)->used)
p=*i;
}
if (!p)
{
p=new BitmapPool::PoolItem;
p->bitmap.resize(width, height);
}
p->used=true;
if (clear) p->bitmap.clear();
mMutex.unlock();
return &(p->bitmap);
}
void BitmapPool::release(Bitmap *bitmap)
{
mMutex.lock();
for (QPtrListIterator<BitmapPool::PoolItem> i(mBitmaps); i.current(); ++i)
{
if (&((*i)->bitmap)==bitmap)
(*i)->used=false;
}
mMutex.unlock();
}
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