Mozilla/mozilla/layout/base/src/nsStyleCoord.cpp
peterl 0645caeec0 added nsStyleCoord
git-svn-id: svn://10.0.0.236/trunk@807 18797224-902f-48f8-a5cc-f745e15eee43
1998-04-28 23:54:06 +00:00

148 lines
3.4 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
#include "nsStyleCoord.h"
#include "nsString.h"
#include "nsCRT.h"
nsStyleCoord::nsStyleCoord(void)
: mUnit(eStyleUnit_Twips)
{
mValue.mInt = 0;
}
nsStyleCoord::nsStyleCoord(nscoord aValue)
: mUnit(eStyleUnit_Twips)
{
mValue.mInt = aValue;
}
nsStyleCoord::nsStyleCoord(PRInt32 aValue, nsStyleUnit aUnit)
: mUnit(aUnit)
{
mValue.mInt = aValue;
}
nsStyleCoord::nsStyleCoord(float aValue)
: mUnit(eStyleUnit_Percent)
{
mValue.mFloat = aValue;
}
nsStyleCoord::nsStyleCoord(const nsStyleCoord& aCopy)
: mUnit(aCopy.mUnit)
{
if (eStyleUnit_Percent == mUnit) {
mValue.mFloat = aCopy.mValue.mFloat;
}
else {
mValue.mInt = aCopy.mValue.mInt;
}
}
nsStyleCoord::~nsStyleCoord(void)
{
}
nsStyleCoord& nsStyleCoord::operator=(const nsStyleCoord& aCopy)
{
mUnit = aCopy.mUnit;
if (eStyleUnit_Percent == mUnit) {
mValue.mFloat = aCopy.mValue.mFloat;
}
else {
mValue.mInt = aCopy.mValue.mInt;
}
return *this;
}
PRBool nsStyleCoord::operator==(const nsStyleCoord& aOther) const
{
if (mUnit == aOther.mUnit) {
if (eStyleUnit_Percent == mUnit) {
return PRBool(mValue.mFloat == aOther.mValue.mFloat);
}
else {
return PRBool(mValue.mInt == aOther.mValue.mInt);
}
}
return PR_FALSE;
}
void nsStyleCoord::Set(nscoord aValue)
{
mUnit = eStyleUnit_Twips;
mValue.mInt = aValue;
}
void nsStyleCoord::Set(PRInt32 aValue, nsStyleUnit aUnit)
{
mUnit = aUnit;
mValue.mInt = aValue;
}
void nsStyleCoord::Set(float aValue)
{
mUnit = eStyleUnit_Percent;
mValue.mFloat = aValue;
}
void nsStyleCoord::SetAuto(void)
{
mUnit = eStyleUnit_Auto;
mValue.mInt = 0;
}
void nsStyleCoord::SetInherit(void)
{
mUnit = eStyleUnit_Inherit;
mValue.mInt = 0;
}
void nsStyleCoord::AppendToString(nsString& aBuffer) const
{
if (eStyleUnit_Percent == mUnit) {
aBuffer.Append(mValue.mFloat);
}
else if ((eStyleUnit_Twips == mUnit) ||
(eStyleUnit_Proportional == mUnit) ||
(eStyleUnit_Enumerated == mUnit)) {
aBuffer.Append(mValue.mInt, 10);
aBuffer.Append("[0x");
aBuffer.Append(mValue.mInt, 16);
aBuffer.Append(']');
}
switch (mUnit) {
case eStyleUnit_Twips: aBuffer.Append("tw"); break;
case eStyleUnit_Percent: aBuffer.Append("%"); break;
case eStyleUnit_Auto: aBuffer.Append("Auto"); break;
case eStyleUnit_Inherit: aBuffer.Append("Inherit"); break;
case eStyleUnit_Proportional: aBuffer.Append("*"); break;
case eStyleUnit_Enumerated: aBuffer.Append("enum"); break;
}
aBuffer.Append(' ');
}
void nsStyleCoord::ToString(nsString& aBuffer) const
{
aBuffer.Truncate();
AppendToString(aBuffer);
}