XP adapter class for scriptable regions.

gfx/src/nsScriptableRegion.cpp

@@ -0,0 +1,149 @@
+/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ * 
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ * 
+ * The Original Code is Mozilla Communicator.
+ * 
+ * The Initial Developer of the Original Code is Netscape Communications
+ * Corp.  Portions created by Netscape are Copyright (C) 1999 Netscape 
+ * Communications Corp.  All Rights Reserved.
+ * 
+ * Contributor(s): 
+ *   Patrick Beard
+ */
+
+#include "nsScriptableRegion.h"
+#include "nsIRegion.h"
+#include "nsCOMPtr.h"
+
+nsScriptableRegion::nsScriptableRegion(nsIRegion* region) : mRegion(nsnull)
+{
+	NS_INIT_ISUPPORTS();
+	mRegion = region;
+	NS_IF_ADDREF(mRegion);
+}
+
+nsScriptableRegion::~nsScriptableRegion()
+{
+	NS_IF_RELEASE(mRegion);
+}
+
+NS_IMPL_ADDREF(nsScriptableRegion)
+NS_IMPL_RELEASE(nsScriptableRegion)
+
+NS_IMETHODIMP nsScriptableRegion::QueryInterface(REFNSIID aIID, void** aInstancePtr)
+{
+	if (NULL == aInstancePtr) {
+		return NS_ERROR_NULL_POINTER;
+	}
+
+	*aInstancePtr = NULL;
+
+	if (aIID.Equals(NS_GET_IID(nsIScriptableRegion)) || aIID.Equals(NS_GET_IID(nsISupports))) {
+		*aInstancePtr = (void*) this;
+		NS_ADDREF_THIS();
+		return NS_OK;
+	}
+	if (aIID.Equals(NS_GET_IID(nsIRegion))) {
+		*aInstancePtr = (void*) mRegion;
+		NS_ADDREF(mRegion);
+		return NS_OK;
+	}
+	return NS_NOINTERFACE;
+}
+
+NS_IMETHODIMP nsScriptableRegion::Init()
+{
+	return mRegion->Init();
+}
+
+NS_IMETHODIMP nsScriptableRegion::SetToRegion(nsIScriptableRegion *aRegion)
+{
+	nsCOMPtr<nsIRegion> region(do_QueryInterface(aRegion));
+	mRegion->SetTo(*region);
+	return NS_OK;
+}
+
+NS_IMETHODIMP nsScriptableRegion::SetToRect(PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight)
+{
+	mRegion->SetTo(aX, aY, aWidth, aHeight);
+	return NS_OK;
+}
+
+NS_IMETHODIMP nsScriptableRegion::IntersectRegion(nsIScriptableRegion *aRegion)
+{
+	nsCOMPtr<nsIRegion> region(do_QueryInterface(aRegion));
+	mRegion->Intersect(*region);
+	return NS_OK;
+}
+
+NS_IMETHODIMP nsScriptableRegion::IntersectRect(PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight)
+{
+	mRegion->Intersect(aX, aY, aWidth, aHeight);
+	return NS_OK;
+}
+
+NS_IMETHODIMP nsScriptableRegion::UnionRegion(nsIScriptableRegion *aRegion)
+{
+	nsCOMPtr<nsIRegion> region(do_QueryInterface(aRegion));
+	mRegion->Union(*region);
+	return NS_OK;
+}
+
+NS_IMETHODIMP nsScriptableRegion::UnionRect(PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight)
+{
+	mRegion->Union(aX, aY, aWidth, aHeight);
+	return NS_OK;
+}
+
+NS_IMETHODIMP nsScriptableRegion::SubtractRegion(nsIScriptableRegion *aRegion)
+{
+	nsCOMPtr<nsIRegion> region(do_QueryInterface(aRegion));
+	mRegion->Subtract(*region);
+	return NS_OK;
+}
+
+NS_IMETHODIMP nsScriptableRegion::SubtractRect(PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight)
+{
+	mRegion->Subtract(aX, aY, aWidth, aHeight);
+	return NS_OK;
+}
+
+NS_IMETHODIMP nsScriptableRegion::IsEmpty(PRBool *isEmpty)
+{
+	*isEmpty = mRegion->IsEmpty();
+	return NS_OK;
+}
+
+NS_IMETHODIMP nsScriptableRegion::IsEqualRegion(nsIScriptableRegion *aRegion, PRBool *isEqual)
+{
+	nsCOMPtr<nsIRegion> region(do_QueryInterface(aRegion));
+	*isEqual = mRegion->IsEqual(*region);
+	return NS_OK;
+}
+
+NS_IMETHODIMP nsScriptableRegion::GetBoundingBox(PRInt32 *aX, PRInt32 *aY, PRInt32 *aWidth, PRInt32 *aHeight)
+{
+	mRegion->GetBoundingBox(aX, aY, aWidth, aHeight);
+	return NS_OK;
+}
+
+NS_IMETHODIMP nsScriptableRegion::Offset(PRInt32 aXOffset, PRInt32 aYOffset)
+{
+	mRegion->Offset(aXOffset, aYOffset);
+	return NS_OK;
+}
+
+NS_IMETHODIMP nsScriptableRegion::ContainsRect(PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight, PRBool *containsRect)
+{
+	*containsRect = mRegion->ContainsRect(aX, aY, aWidth, aHeight);
+	return NS_OK;
+}

gfx/src/nsScriptableRegion.h

@@ -0,0 +1,41 @@
+/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ * 
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ * 
+ * The Original Code is Mozilla Communicator.
+ * 
+ * The Initial Developer of the Original Code is Netscape Communications
+ * Corp.  Portions created by Netscape are Copyright (C) 1999 Netscape 
+ * Communications Corp.  All Rights Reserved.
+ * 
+ * Contributor(s): 
+ *   Patrick Beard
+ */
+
+#include "nsIScriptableRegion.h"
+
+class nsIRegion;
+
+/**
+ * An adapter class for the unscriptable nsIRegion interface.
+ */
+class nsScriptableRegion : public nsIScriptableRegion {
+public:
+	nsScriptableRegion(nsIRegion* region);
+	virtual ~nsScriptableRegion();
+	
+	NS_DECL_ISUPPORTS
+
+	NS_DECL_NSISCRIPTABLEREGION
+
+private:
+	nsIRegion* mRegion;
+};