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gecko-dev/layout/style/nsCSSValue.cpp

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12 KiB
C++
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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
* 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 NPL, 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 NPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsCSSValue.h"
#include "nsString.h"
#include "nsCSSProps.h"
#include "nsReadableUtils.h"
//#include "nsStyleConsts.h"
nsCSSValue::nsCSSValue(PRInt32 aValue, nsCSSUnit aUnit)
: mUnit(aUnit)
{
NS_ASSERTION((eCSSUnit_Integer == aUnit) ||
(eCSSUnit_Enumerated == aUnit), "not an int value");
if ((eCSSUnit_Integer == aUnit) ||
(eCSSUnit_Enumerated == aUnit)) {
mValue.mInt = aValue;
}
else {
mUnit = eCSSUnit_Null;
mValue.mInt = 0;
}
}
nsCSSValue::nsCSSValue(float aValue, nsCSSUnit aUnit)
: mUnit(aUnit)
{
NS_ASSERTION(eCSSUnit_Percent <= aUnit, "not a float value");
if (eCSSUnit_Percent <= aUnit) {
mValue.mFloat = aValue;
}
else {
mUnit = eCSSUnit_Null;
mValue.mInt = 0;
}
}
nsCSSValue::nsCSSValue(const nsAString& aValue, nsCSSUnit aUnit)
: mUnit(aUnit)
{
NS_ASSERTION((eCSSUnit_String <= aUnit) && (aUnit <= eCSSUnit_Counters), "not a string value");
if ((eCSSUnit_String <= aUnit) && (aUnit <= eCSSUnit_Counters)) {
mValue.mString = ToNewUnicode(aValue);
}
else {
mUnit = eCSSUnit_Null;
mValue.mInt = 0;
}
}
nsCSSValue::nsCSSValue(nscolor aValue)
: mUnit(eCSSUnit_Color)
{
mValue.mColor = aValue;
}
nsCSSValue::nsCSSValue(const nsCSSValue& aCopy)
: mUnit(aCopy.mUnit)
{
if ((eCSSUnit_String <= mUnit) && (mUnit <= eCSSUnit_Counters)) {
if (nsnull != aCopy.mValue.mString) {
mValue.mString = nsCRT::strdup(aCopy.mValue.mString);
}
else {
mValue.mString = nsnull;
}
}
else if ((eCSSUnit_Integer <= mUnit) && (mUnit <= eCSSUnit_Enumerated)) {
mValue.mInt = aCopy.mValue.mInt;
}
else if (eCSSUnit_Color == mUnit){
mValue.mColor = aCopy.mValue.mColor;
}
else {
mValue.mFloat = aCopy.mValue.mFloat;
}
}
nsCSSValue& nsCSSValue::operator=(const nsCSSValue& aCopy)
{
Reset();
mUnit = aCopy.mUnit;
if ((eCSSUnit_String <= mUnit) && (mUnit <= eCSSUnit_Counters)) {
if (nsnull != aCopy.mValue.mString) {
mValue.mString = nsCRT::strdup(aCopy.mValue.mString);
}
}
else if ((eCSSUnit_Integer <= mUnit) && (mUnit <= eCSSUnit_Enumerated)) {
mValue.mInt = aCopy.mValue.mInt;
}
else if (eCSSUnit_Color == mUnit){
mValue.mColor = aCopy.mValue.mColor;
}
else {
mValue.mFloat = aCopy.mValue.mFloat;
}
return *this;
}
PRBool nsCSSValue::operator==(const nsCSSValue& aOther) const
{
if (mUnit == aOther.mUnit) {
if ((eCSSUnit_String <= mUnit) && (mUnit <= eCSSUnit_Counters)) {
if (nsnull == mValue.mString) {
if (nsnull == aOther.mValue.mString) {
return PR_TRUE;
}
}
else if (nsnull != aOther.mValue.mString) {
return (nsCRT::strcmp(mValue.mString, aOther.mValue.mString) == 0);
}
}
else if ((eCSSUnit_Integer <= mUnit) && (mUnit <= eCSSUnit_Enumerated)) {
return PRBool(mValue.mInt == aOther.mValue.mInt);
}
else if (eCSSUnit_Color == mUnit){
return PRBool(mValue.mColor == aOther.mValue.mColor);
}
else {
return PRBool(mValue.mFloat == aOther.mValue.mFloat);
}
}
return PR_FALSE;
}
void nsCSSValue::SetIntValue(PRInt32 aValue, nsCSSUnit aUnit)
{
NS_ASSERTION((eCSSUnit_Integer == aUnit) ||
(eCSSUnit_Enumerated == aUnit), "not an int value");
Reset();
if ((eCSSUnit_Integer == aUnit) ||
(eCSSUnit_Enumerated == aUnit)) {
mUnit = aUnit;
mValue.mInt = aValue;
}
}
void nsCSSValue::SetStringValue(const nsAString& aValue,
nsCSSUnit aUnit)
{
NS_ASSERTION((eCSSUnit_String <= aUnit) && (aUnit <= eCSSUnit_Counters), "not a string unit");
Reset();
if ((eCSSUnit_String <= aUnit) && (aUnit <= eCSSUnit_Counters)) {
mUnit = aUnit;
mValue.mString = ToNewUnicode(aValue);
}
}
void nsCSSValue::SetColorValue(nscolor aValue)
{
Reset();
mUnit = eCSSUnit_Color;
mValue.mColor = aValue;
}
void nsCSSValue::SetAutoValue(void)
{
Reset();
mUnit = eCSSUnit_Auto;
}
void nsCSSValue::SetInheritValue(void)
{
Reset();
mUnit = eCSSUnit_Inherit;
}
void nsCSSValue::SetInitialValue(void)
{
Reset();
mUnit = eCSSUnit_Initial;
}
void nsCSSValue::SetNoneValue(void)
{
Reset();
mUnit = eCSSUnit_None;
}
void nsCSSValue::SetNormalValue(void)
{
Reset();
mUnit = eCSSUnit_Normal;
}
void nsCSSValue::AppendToString(nsAString& aBuffer,
nsCSSProperty aPropID) const
{
if (eCSSUnit_Null == mUnit) {
return;
}
if (-1 < aPropID) {
aBuffer.Append(NS_ConvertASCIItoUCS2(nsCSSProps::GetStringValue(aPropID)));
aBuffer.Append(NS_LITERAL_STRING(": "));
}
if ((eCSSUnit_String <= mUnit) && (mUnit <= eCSSUnit_Counters)) {
switch (mUnit) {
case eCSSUnit_URL: aBuffer.Append(NS_LITERAL_STRING("url(")); break;
case eCSSUnit_Attr: aBuffer.Append(NS_LITERAL_STRING("attr(")); break;
case eCSSUnit_Counter: aBuffer.Append(NS_LITERAL_STRING("counter(")); break;
case eCSSUnit_Counters: aBuffer.Append(NS_LITERAL_STRING("counters(")); break;
default: break;
}
if (nsnull != mValue.mString) {
aBuffer.Append(PRUnichar('"'));
aBuffer.Append(mValue.mString);
aBuffer.Append(PRUnichar('"'));
}
else {
aBuffer.Append(NS_LITERAL_STRING("null str"));
}
}
else if ((eCSSUnit_Integer <= mUnit) && (mUnit <= eCSSUnit_Enumerated)) {
nsAutoString intStr;
intStr.AppendInt(mValue.mInt, 10);
aBuffer.Append(intStr);
aBuffer.Append(NS_LITERAL_STRING("[0x"));
intStr.Truncate();
intStr.AppendInt(mValue.mInt, 16);
aBuffer.Append(intStr);
aBuffer.Append(PRUnichar(']'));
}
else if (eCSSUnit_Color == mUnit){
aBuffer.Append(NS_LITERAL_STRING("(0x"));
nsAutoString intStr;
intStr.AppendInt(NS_GET_R(mValue.mColor), 16);
aBuffer.Append(intStr);
aBuffer.Append(NS_LITERAL_STRING(" 0x"));
intStr.Truncate();
intStr.AppendInt(NS_GET_G(mValue.mColor), 16);
aBuffer.Append(intStr);
aBuffer.Append(NS_LITERAL_STRING(" 0x"));
intStr.Truncate();
intStr.AppendInt(NS_GET_B(mValue.mColor), 16);
aBuffer.Append(intStr);
aBuffer.Append(NS_LITERAL_STRING(" 0x"));
intStr.Truncate();
intStr.AppendInt(NS_GET_A(mValue.mColor), 16);
aBuffer.Append(intStr);
aBuffer.Append(PRUnichar(')'));
}
else if (eCSSUnit_Percent == mUnit) {
nsAutoString floatString;
floatString.AppendFloat(mValue.mFloat * 100.0f);
aBuffer.Append(floatString);
}
else if (eCSSUnit_Percent < mUnit) {
nsAutoString floatString;
floatString.AppendFloat(mValue.mFloat);
aBuffer.Append(floatString);
}
switch (mUnit) {
case eCSSUnit_Null: break;
case eCSSUnit_Auto: aBuffer.Append(NS_LITERAL_STRING("auto")); break;
case eCSSUnit_Inherit: aBuffer.Append(NS_LITERAL_STRING("inherit")); break;
case eCSSUnit_Initial: aBuffer.Append(NS_LITERAL_STRING("initial")); break;
case eCSSUnit_None: aBuffer.Append(NS_LITERAL_STRING("none")); break;
case eCSSUnit_Normal: aBuffer.Append(NS_LITERAL_STRING("normal")); break;
case eCSSUnit_String: break;
case eCSSUnit_URL:
case eCSSUnit_Attr:
case eCSSUnit_Counter:
case eCSSUnit_Counters: aBuffer.Append(NS_LITERAL_STRING(")")); break;
case eCSSUnit_Integer: aBuffer.Append(NS_LITERAL_STRING("int")); break;
case eCSSUnit_Enumerated: aBuffer.Append(NS_LITERAL_STRING("enum")); break;
case eCSSUnit_Color: aBuffer.Append(NS_LITERAL_STRING("rbga")); break;
case eCSSUnit_Percent: aBuffer.Append(NS_LITERAL_STRING("%")); break;
case eCSSUnit_Number: aBuffer.Append(NS_LITERAL_STRING("#")); break;
case eCSSUnit_Inch: aBuffer.Append(NS_LITERAL_STRING("in")); break;
case eCSSUnit_Foot: aBuffer.Append(NS_LITERAL_STRING("ft")); break;
case eCSSUnit_Mile: aBuffer.Append(NS_LITERAL_STRING("mi")); break;
case eCSSUnit_Millimeter: aBuffer.Append(NS_LITERAL_STRING("mm")); break;
case eCSSUnit_Centimeter: aBuffer.Append(NS_LITERAL_STRING("cm")); break;
case eCSSUnit_Meter: aBuffer.Append(NS_LITERAL_STRING("m")); break;
case eCSSUnit_Kilometer: aBuffer.Append(NS_LITERAL_STRING("km")); break;
case eCSSUnit_Point: aBuffer.Append(NS_LITERAL_STRING("pt")); break;
case eCSSUnit_Pica: aBuffer.Append(NS_LITERAL_STRING("pc")); break;
case eCSSUnit_Didot: aBuffer.Append(NS_LITERAL_STRING("dt")); break;
case eCSSUnit_Cicero: aBuffer.Append(NS_LITERAL_STRING("cc")); break;
case eCSSUnit_EM: aBuffer.Append(NS_LITERAL_STRING("em")); break;
case eCSSUnit_EN: aBuffer.Append(NS_LITERAL_STRING("en")); break;
case eCSSUnit_XHeight: aBuffer.Append(NS_LITERAL_STRING("ex")); break;
case eCSSUnit_CapHeight: aBuffer.Append(NS_LITERAL_STRING("cap")); break;
case eCSSUnit_Char: aBuffer.Append(NS_LITERAL_STRING("ch")); break;
case eCSSUnit_Pixel: aBuffer.Append(NS_LITERAL_STRING("px")); break;
case eCSSUnit_Proportional: aBuffer.Append(NS_LITERAL_STRING("*")); break;
case eCSSUnit_Degree: aBuffer.Append(NS_LITERAL_STRING("deg")); break;
case eCSSUnit_Grad: aBuffer.Append(NS_LITERAL_STRING("grad")); break;
case eCSSUnit_Radian: aBuffer.Append(NS_LITERAL_STRING("rad")); break;
case eCSSUnit_Hertz: aBuffer.Append(NS_LITERAL_STRING("Hz")); break;
case eCSSUnit_Kilohertz: aBuffer.Append(NS_LITERAL_STRING("kHz")); break;
case eCSSUnit_Seconds: aBuffer.Append(NS_LITERAL_STRING("s")); break;
case eCSSUnit_Milliseconds: aBuffer.Append(NS_LITERAL_STRING("ms")); break;
}
aBuffer.Append(NS_LITERAL_STRING(" "));
}
void nsCSSValue::ToString(nsAString& aBuffer,
nsCSSProperty aPropID) const
{
aBuffer.Truncate();
AppendToString(aBuffer, aPropID);
}
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