gecko-dev/layout/style/nsROCSSPrimitiveValue.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: NPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Netscape 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/NPL/
*
* 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.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
*
* Alternatively, the contents of this file may be used under the terms of
* either 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
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* ***** END LICENSE BLOCK ***** */
#ifndef nsROCSSPrimitiveValue_h___
#define nsROCSSPrimitiveValue_h___
#include "nsIDOMCSSPrimitiveValue.h"
#include "nsString.h"
#include "nsCoord.h"
#include "nsUnitConversion.h"
#include "nsReadableUtils.h"
#include "nsIURI.h"
#include "nsIAtom.h"
#include "nsCOMPtr.h"
#include "nsDOMError.h"
#include "nsDOMCSSRect.h"
#include "nsDOMCSSRGBColor.h"
class nsROCSSPrimitiveValue : public nsIDOMCSSPrimitiveValue
{
public:
NS_DECL_ISUPPORTS
// nsIDOMCSSPrimitiveValue
NS_DECL_NSIDOMCSSPRIMITIVEVALUE
// nsIDOMCSSValue
NS_DECL_NSIDOMCSSVALUE
// nsROCSSPrimitiveValue
nsROCSSPrimitiveValue(float aP2T);
virtual ~nsROCSSPrimitiveValue();
void SetNumber(float aValue)
{
Reset();
mValue.mFloat = aValue;
mType = CSS_NUMBER;
}
void SetNumber(PRInt32 aValue)
{
Reset();
mValue.mFloat = float(aValue);
mType = CSS_NUMBER;
}
void SetNumber(PRUint32 aValue)
{
Reset();
mValue.mFloat = float(aValue);
mType = CSS_NUMBER;
}
void SetPercent(float aValue)
{
Reset();
mValue.mFloat = aValue;
mType = CSS_PERCENTAGE;
}
void SetTwips(nscoord aValue)
{
Reset();
mValue.mTwips = aValue;
mType = CSS_PX;
}
void SetTwips(float aValue)
{
Reset();
mValue.mTwips = nscoord(aValue);
mType = CSS_PX;
}
void SetIdent(nsIAtom* aAtom)
{
NS_PRECONDITION(aAtom, "Don't pass in a null atom");
Reset();
NS_ADDREF(mValue.mAtom = aAtom);
mType = CSS_IDENT;
}
void SetIdent(const nsACString& aString)
{
Reset();
mValue.mAtom = NS_NewAtom(aString);
if (mValue.mAtom) {
mType = CSS_IDENT;
} else {
// XXXcaa We should probably let the caller know we are out of memory
mType = CSS_UNKNOWN;
}
}
void SetString(const nsACString& aString)
{
Reset();
mValue.mString = ToNewUnicode(aString);
if (mValue.mString) {
mType = CSS_STRING;
} else {
// XXXcaa We should probably let the caller know we are out of memory
mType = CSS_UNKNOWN;
}
}
void SetString(const nsAString& aString)
{
Reset();
mValue.mString = ToNewUnicode(aString);
if (mValue.mString) {
mType = CSS_STRING;
} else {
// XXXcaa We should probably let the caller know we are out of memory
mType = CSS_UNKNOWN;
}
}
void SetURI(nsIURI *aURI)
{
Reset();
mValue.mURI = aURI;
NS_IF_ADDREF(mValue.mURI);
mType = CSS_URI;
}
void SetColor(nsIDOMRGBColor* aColor)
{
NS_PRECONDITION(aColor, "Null RGBColor being set!");
Reset();
mValue.mColor = aColor;
if (mValue.mColor) {
NS_ADDREF(mValue.mColor);
mType = CSS_RGBCOLOR;
}
else {
mType = CSS_UNKNOWN;
}
}
void SetRect(nsIDOMRect* aRect)
{
NS_PRECONDITION(aRect, "Null rect being set!");
Reset();
mValue.mRect = aRect;
if (mValue.mRect) {
NS_ADDREF(mValue.mRect);
mType = CSS_RECT;
}
else {
mType = CSS_UNKNOWN;
}
}
void Reset(void)
{
switch (mType) {
case CSS_IDENT:
NS_ASSERTION(mValue.mAtom, "Null atom should never happen");
NS_RELEASE(mValue.mAtom);
break;
case CSS_STRING:
NS_ASSERTION(mValue.mString, "Null string should never happen");
nsMemory::Free(mValue.mString);
mValue.mString = nsnull;
break;
case CSS_URI:
NS_IF_RELEASE(mValue.mURI);
break;
case CSS_RECT:
NS_ASSERTION(mValue.mRect, "Null Rect should never happen");
NS_RELEASE(mValue.mRect);
break;
case CSS_RGBCOLOR:
NS_ASSERTION(mValue.mColor, "Null RGBColor should never happen");
NS_RELEASE(mValue.mColor);
break;
}
}
private:
void GetEscapedURI(nsIURI *aURI, PRUnichar **aReturn);
PRUint16 mType;
union {
nscoord mTwips;
float mFloat;
nsIDOMRGBColor* mColor;
nsIDOMRect* mRect;
PRUnichar* mString;
nsIURI* mURI;
nsIAtom* mAtom;
} mValue;
float mT2P;
};
#endif /* nsROCSSPrimitiveValue_h___ */