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Bug 38447 store hotspot information from .cur files on the imgIContainer; and

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support storing arbitrary information on image containers (via nsIProperties)
r=pavlov sr=tor
This commit is contained in:
cbiesinger%web.de 2005-01-12 20:16:07 +00:00
parent 7660d9cd78
commit 2d5fec5c1a
5 changed files with 47 additions and 11 deletions
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22
modules/libpr0n/decoders/bmp/nsICODecoder.cpp
View File

@ -48,6 +48,9 @@
#include "imgILoad.h"
#include "nsIProperties.h"
#include "nsISupportsPrimitives.h"
#include "nsAutoPtr.h"
NS_IMPL_ISUPPORTS1(nsICODecoder, imgIDecoder)
@ -227,6 +230,8 @@ nsresult nsICODecoder::ProcessData(const char* aBuffer, PRUint32 aCount) {
return NS_OK;
while (aCount && (mPos < ICONCOUNTOFFSET)) { // Skip to the # of icons.
if (mPos == 2) // if the third byte is 2: This is a cursor
mIsCursor = (*aBuffer == 2);
mPos++; aBuffer++; aCount--;
}
@ -308,6 +313,23 @@ nsresult nsICODecoder::ProcessData(const char* aBuffer, PRUint32 aCount) {
nsresult rv = mImage->Init(mDirEntry.mWidth, mDirEntry.mHeight, mObserver);
NS_ENSURE_SUCCESS(rv, rv);
if (mIsCursor) {
nsCOMPtr<nsIProperties> props(do_QueryInterface(mImage));
if (props) {
nsCOMPtr<nsISupportsPRUint32> intwrapx = do_CreateInstance("@mozilla.org/supports-PRUint32;1");
nsCOMPtr<nsISupportsPRUint32> intwrapy = do_CreateInstance("@mozilla.org/supports-PRUint32;1");
if (intwrapx && intwrapy) {
intwrapx->SetData(mDirEntry.mXHotspot);
intwrapy->SetData(mDirEntry.mYHotspot);
props->Set("hotspotX", intwrapx);
props->Set("hotspotY", intwrapy);
}
}
}
rv = mObserver->OnStartContainer(nsnull, mImage);
NS_ENSURE_SUCCESS(rv, rv);

11
modules/libpr0n/decoders/bmp/nsICODecoder.h
View File

@ -64,8 +64,14 @@ struct IconDirEntry
PRUint8 mHeight;
PRUint8 mColorCount;
PRUint8 mReserved;
PRUint16 mPlanes;
PRUint16 mBitCount;
union {
PRUint16 mPlanes; // ICO
PRUint16 mXHotspot; // CUR
};
union {
PRUint16 mBitCount; // ICO
PRUint16 mYHotspot; // CUR
};
PRUint32 mBytesInRes;
PRUint32 mImageOffset;
};
@ -123,6 +129,7 @@ private:
PRUint8* mDecodedBuffer;
PRUint8* mAlphaBuffer;
PRPackedBool mIsCursor;
};

6
modules/libpr0n/src/imgContainer.cpp
View File

@ -1,5 +1,4 @@
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
@ -40,15 +39,18 @@
*
* ***** END LICENSE BLOCK ***** */
#include "nsComponentManagerUtils.h"
#include "imgContainer.h"
NS_IMPL_ISUPPORTS1(imgContainer, imgIContainer)
NS_IMPL_ISUPPORTS2(imgContainer, imgIContainer, nsIProperties)
//******************************************************************************
imgContainer::imgContainer() :
mSize(0,0),
mFrame(nsnull)
{
mProperties = do_CreateInstance("@mozilla.org/properties;1");
}
//******************************************************************************

15
modules/libpr0n/src/imgContainer.h
View File

@ -44,21 +44,23 @@
#include "nsCOMPtr.h"
#include "imgIContainer.h"
#include "gfxIImageFrame.h"
#include "nsIProperties.h"
#define NS_IMGCONTAINER_CID \
{ /* 5e04ec5e-1dd2-11b2-8fda-c4db5fb666e0 */ \
0x5e04ec5e, \
0x1dd2, \
0x11b2, \
{0x8f, 0xda, 0xc4, 0xdb, 0x5f, 0xb6, 0x66, 0xe0} \
{ /* 27f0682c-ff64-4dd2-ae7a-668e59f2fd38 */ \
0x27f0682c, \
0xff64, \
0x4dd2, \
{0xae, 0x7a, 0x66, 0x8e, 0x59, 0xf2, 0xfd, 0x38} \
}
class imgContainer : public imgIContainer
class imgContainer : public imgIContainer, public nsIProperties
{
public:
NS_DECL_ISUPPORTS
NS_DECL_IMGICONTAINER
NS_FORWARD_SAFE_NSIPROPERTIES(mProperties)
imgContainer();
virtual ~imgContainer();
@ -66,6 +68,7 @@ public:
private:
nsIntSize mSize;
nsCOMPtr<gfxIImageFrame> mFrame;
nsCOMPtr<nsIProperties> mProperties;
};
#endif /* __imgContainer_h__ */

4
modules/libpr0n/src/imgLoader.cpp
View File

@ -781,7 +781,9 @@ nsresult imgLoader::GetMimeTypeFromContent(const char* aContents, PRUint32 aLeng
}
// ICOs always begin with a 2-byte 0 followed by a 2-byte 1.
else if (aLength >= 4 && !memcmp(aContents, "\000\000\001\000", 4)) {
// CURs begin with 2-byte 0 followed by 2-byte 2.
else if (aLength >= 4 && (!memcmp(aContents, "\000\000\001\000", 4) ||
!memcmp(aContents, "\000\000\002\000", 4))) {
aContentType.AssignLiteral("image/x-icon");
}