https://github.com/mozilla/gecko-dev
Tip revision: fc4b0ea1ea281e947ca1c83714be9c5185c010ff authored by ffxbld on 11 March 2012, 01:18:23 UTC
Added FIREFOX_11_0b8_RELEASE FIREFOX_11_0b8_BUILD1 tag(s) for changeset 0df2e93ff663. DONTBUILD CLOSED TREE a=release
Added FIREFOX_11_0b8_RELEASE FIREFOX_11_0b8_BUILD1 tag(s) for changeset 0df2e93ff663. DONTBUILD CLOSED TREE a=release
Tip revision: fc4b0ea
nsScriptableRegion.cpp
/* -*- 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
*
* 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 the Initial Developer are Copyright (C) 1999
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Patrick Beard
* Taras Glek
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsScriptableRegion.h"
#include "nsCOMPtr.h"
#include "nsIXPConnect.h"
#include "nsServiceManagerUtils.h"
#include "jsapi.h"
nsScriptableRegion::nsScriptableRegion()
{
}
NS_IMPL_ISUPPORTS1(nsScriptableRegion, nsIScriptableRegion)
NS_IMETHODIMP nsScriptableRegion::Init()
{
return NS_OK;
}
NS_IMETHODIMP nsScriptableRegion::SetToRegion(nsIScriptableRegion *aRegion)
{
aRegion->GetRegion(&mRegion);
return NS_OK;
}
NS_IMETHODIMP nsScriptableRegion::SetToRect(PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight)
{
mRegion = nsIntRect(aX, aY, aWidth, aHeight);
return NS_OK;
}
NS_IMETHODIMP nsScriptableRegion::IntersectRegion(nsIScriptableRegion *aRegion)
{
nsIntRegion region;
aRegion->GetRegion(®ion);
mRegion.And(mRegion, region);
return NS_OK;
}
NS_IMETHODIMP nsScriptableRegion::IntersectRect(PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight)
{
mRegion.And(mRegion, nsIntRect(aX, aY, aWidth, aHeight));
return NS_OK;
}
NS_IMETHODIMP nsScriptableRegion::UnionRegion(nsIScriptableRegion *aRegion)
{
nsIntRegion region;
aRegion->GetRegion(®ion);
mRegion.Or(mRegion, region);
return NS_OK;
}
NS_IMETHODIMP nsScriptableRegion::UnionRect(PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight)
{
mRegion.Or(mRegion, nsIntRect(aX, aY, aWidth, aHeight));
return NS_OK;
}
NS_IMETHODIMP nsScriptableRegion::SubtractRegion(nsIScriptableRegion *aRegion)
{
nsIntRegion region;
aRegion->GetRegion(®ion);
mRegion.Sub(mRegion, region);
return NS_OK;
}
NS_IMETHODIMP nsScriptableRegion::SubtractRect(PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight)
{
mRegion.Sub(mRegion, nsIntRect(aX, aY, aWidth, aHeight));
return NS_OK;
}
NS_IMETHODIMP nsScriptableRegion::IsEmpty(bool *isEmpty)
{
*isEmpty = mRegion.IsEmpty();
return NS_OK;
}
NS_IMETHODIMP nsScriptableRegion::IsEqualRegion(nsIScriptableRegion *aRegion, bool *isEqual)
{
nsIntRegion region;
aRegion->GetRegion(®ion);
*isEqual = mRegion.IsEqual(region);
return NS_OK;
}
NS_IMETHODIMP nsScriptableRegion::GetBoundingBox(PRInt32 *aX, PRInt32 *aY, PRInt32 *aWidth, PRInt32 *aHeight)
{
nsIntRect boundRect = mRegion.GetBounds();
*aX = boundRect.x;
*aY = boundRect.y;
*aWidth = boundRect.width;
*aHeight = boundRect.height;
return NS_OK;
}
NS_IMETHODIMP nsScriptableRegion::Offset(PRInt32 aXOffset, PRInt32 aYOffset)
{
mRegion.MoveBy(aXOffset, aYOffset);
return NS_OK;
}
NS_IMETHODIMP nsScriptableRegion::ContainsRect(PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight, bool *containsRect)
{
*containsRect = mRegion.Contains(nsIntRect(aX, aY, aWidth, aHeight));
return NS_OK;
}
NS_IMETHODIMP nsScriptableRegion::GetRegion(nsIntRegion* outRgn)
{
*outRgn = mRegion;
return NS_OK;
}
NS_IMETHODIMP nsScriptableRegion::GetRects(JSContext* aCx, JS::Value* aRects)
{
PRUint32 numRects = mRegion.GetNumRects();
if (!numRects) {
*aRects = JSVAL_NULL;
return NS_OK;
}
JSObject* destArray = JS_NewArrayObject(aCx, numRects * 4, NULL);
if (!destArray) {
return NS_ERROR_OUT_OF_MEMORY;
}
*aRects = OBJECT_TO_JSVAL(destArray);
uint32 n = 0;
nsIntRegionRectIterator iter(mRegion);
const nsIntRect *rect;
while ((rect = iter.Next())) {
if (!JS_DefineElement(aCx, destArray, n, INT_TO_JSVAL(rect->x), NULL, NULL, JSPROP_ENUMERATE) ||
!JS_DefineElement(aCx, destArray, n + 1, INT_TO_JSVAL(rect->y), NULL, NULL, JSPROP_ENUMERATE) ||
!JS_DefineElement(aCx, destArray, n + 2, INT_TO_JSVAL(rect->width), NULL, NULL, JSPROP_ENUMERATE) ||
!JS_DefineElement(aCx, destArray, n + 3, INT_TO_JSVAL(rect->height), NULL, NULL, JSPROP_ENUMERATE)) {
return NS_ERROR_FAILURE;
}
n += 4;
}
return NS_OK;
}