Bommels05/Mozilla
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we now allocate a single offscreen buffer.

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git-svn-id: svn://10.0.0.236/trunk@7872 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
michaelp%netscape.com 1998-08-12 21:17:52 +00:00
parent effee43052
commit 245e23bf94
2 changed files with 15 additions and 4 deletions
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11
mozilla/view/src/nsViewManager.cpp
View File

@ -46,10 +46,15 @@ static void vm_timer_callback(nsITimer *aTimer, void *aClosure)
vm->Composite();
}
PRUint32 nsViewManager::mVMCount = 0;
nsDrawingSurface nsViewManager::mDrawingSurface = nsnull;
nsRect nsViewManager::mDSBounds = nsRect(0, 0, 0, 0);
static NS_DEFINE_IID(knsViewManagerIID, NS_IVIEWMANAGER_IID);
nsViewManager :: nsViewManager()
{
mVMCount++;
}
nsViewManager :: ~nsViewManager()
@ -63,7 +68,11 @@ nsViewManager :: ~nsViewManager()
NS_IF_RELEASE(mRootWindow);
NS_IF_RELEASE(mDirtyRegion);
if (nsnull != mDrawingSurface)
--mVMCount;
NS_ASSERTION(!(mVMCount < 0), "underflow of viewmanagers");
if ((0 == mVMCount) && (nsnull != mDrawingSurface))
{
nsIRenderingContext *rc;

8
mozilla/view/src/nsViewManager.h
View File

@ -128,13 +128,15 @@ private:
nsIPresContext *mContext;
nsIWidget *mRootWindow;
nsRect mDSBounds;
nsDrawingSurface mDrawingSurface;
PRTime mLastRefresh;
nsIRegion *mDirtyRegion;
PRInt32 mTransCnt;
PRBool mRefreshEnabled;
static PRUint32 mVMCount; //number of viewmanagers
static nsDrawingSurface mDrawingSurface; //single drawing surface
static nsRect mDSBounds; //for all VMs
public:
//these are public so that our timer callback can poke them.
nsITimer *mTimer;