mirror of
https://github.com/classilla/tenfourfox.git
synced 2024-09-10 11:54:40 +00:00
422 lines
11 KiB
C++
422 lines
11 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
/* representation of length values in computed style data */
|
|
|
|
#include "nsStyleCoord.h"
|
|
#include "mozilla/HashFunctions.h"
|
|
#include "mozilla/PodOperations.h"
|
|
|
|
nsStyleCoord::nsStyleCoord(nsStyleUnit aUnit)
|
|
: mUnit(aUnit)
|
|
{
|
|
NS_ASSERTION(aUnit < eStyleUnit_Percent, "not a valueless unit");
|
|
if (aUnit >= eStyleUnit_Percent) {
|
|
mUnit = eStyleUnit_Null;
|
|
}
|
|
mValue.mInt = 0;
|
|
}
|
|
|
|
nsStyleCoord::nsStyleCoord(int32_t aValue, nsStyleUnit aUnit)
|
|
: mUnit(aUnit)
|
|
{
|
|
//if you want to pass in eStyleUnit_Coord, don't. instead, use the
|
|
//constructor just above this one... MMP
|
|
NS_ASSERTION((aUnit == eStyleUnit_Enumerated) ||
|
|
(aUnit == eStyleUnit_Integer), "not an int value");
|
|
if ((aUnit == eStyleUnit_Enumerated) ||
|
|
(aUnit == eStyleUnit_Integer)) {
|
|
mValue.mInt = aValue;
|
|
}
|
|
else {
|
|
mUnit = eStyleUnit_Null;
|
|
mValue.mInt = 0;
|
|
}
|
|
}
|
|
|
|
nsStyleCoord::nsStyleCoord(float aValue, nsStyleUnit aUnit)
|
|
: mUnit(aUnit)
|
|
{
|
|
if (aUnit < eStyleUnit_Percent || aUnit >= eStyleUnit_Coord) {
|
|
NS_NOTREACHED("not a float value");
|
|
mUnit = eStyleUnit_Null;
|
|
mValue.mInt = 0;
|
|
} else {
|
|
mValue.mFloat = aValue;
|
|
}
|
|
}
|
|
|
|
bool nsStyleCoord::operator==(const nsStyleCoord& aOther) const
|
|
{
|
|
if (mUnit != aOther.mUnit) {
|
|
return false;
|
|
}
|
|
switch (mUnit) {
|
|
case eStyleUnit_Null:
|
|
case eStyleUnit_Normal:
|
|
case eStyleUnit_Auto:
|
|
case eStyleUnit_None:
|
|
return true;
|
|
case eStyleUnit_Percent:
|
|
case eStyleUnit_Factor:
|
|
case eStyleUnit_Degree:
|
|
case eStyleUnit_Grad:
|
|
case eStyleUnit_Radian:
|
|
case eStyleUnit_Turn:
|
|
case eStyleUnit_FlexFraction:
|
|
return mValue.mFloat == aOther.mValue.mFloat;
|
|
case eStyleUnit_Coord:
|
|
case eStyleUnit_Integer:
|
|
case eStyleUnit_Enumerated:
|
|
return mValue.mInt == aOther.mValue.mInt;
|
|
case eStyleUnit_Calc:
|
|
return *this->GetCalcValue() == *aOther.GetCalcValue();
|
|
}
|
|
MOZ_ASSERT(false, "unexpected unit");
|
|
return false;
|
|
}
|
|
|
|
uint32_t nsStyleCoord::HashValue(uint32_t aHash = 0) const
|
|
{
|
|
aHash = mozilla::AddToHash(aHash, mUnit);
|
|
|
|
switch (mUnit) {
|
|
case eStyleUnit_Null:
|
|
case eStyleUnit_Normal:
|
|
case eStyleUnit_Auto:
|
|
case eStyleUnit_None:
|
|
return mozilla::AddToHash(aHash, true);
|
|
case eStyleUnit_Percent:
|
|
case eStyleUnit_Factor:
|
|
case eStyleUnit_Degree:
|
|
case eStyleUnit_Grad:
|
|
case eStyleUnit_Radian:
|
|
case eStyleUnit_Turn:
|
|
case eStyleUnit_FlexFraction:
|
|
return mozilla::AddToHash(aHash, mValue.mFloat);
|
|
case eStyleUnit_Coord:
|
|
case eStyleUnit_Integer:
|
|
case eStyleUnit_Enumerated:
|
|
return mozilla::AddToHash(aHash, mValue.mInt);
|
|
case eStyleUnit_Calc:
|
|
Calc* calcValue = GetCalcValue();
|
|
aHash = mozilla::AddToHash(aHash, calcValue->mLength);
|
|
if (HasPercent()) {
|
|
return mozilla::AddToHash(aHash, calcValue->mPercent);
|
|
}
|
|
return aHash;
|
|
}
|
|
MOZ_ASSERT(false, "unexpected unit");
|
|
return aHash;
|
|
}
|
|
|
|
void nsStyleCoord::Reset()
|
|
{
|
|
Reset(mUnit, mValue);
|
|
}
|
|
|
|
void nsStyleCoord::SetCoordValue(nscoord aValue)
|
|
{
|
|
Reset();
|
|
mUnit = eStyleUnit_Coord;
|
|
mValue.mInt = aValue;
|
|
}
|
|
|
|
void nsStyleCoord::SetIntValue(int32_t aValue, nsStyleUnit aUnit)
|
|
{
|
|
NS_ASSERTION((aUnit == eStyleUnit_Enumerated) ||
|
|
(aUnit == eStyleUnit_Integer), "not an int value");
|
|
Reset();
|
|
if ((aUnit == eStyleUnit_Enumerated) ||
|
|
(aUnit == eStyleUnit_Integer)) {
|
|
mUnit = aUnit;
|
|
mValue.mInt = aValue;
|
|
}
|
|
}
|
|
|
|
void nsStyleCoord::SetPercentValue(float aValue)
|
|
{
|
|
Reset();
|
|
mUnit = eStyleUnit_Percent;
|
|
mValue.mFloat = aValue;
|
|
}
|
|
|
|
void nsStyleCoord::SetFactorValue(float aValue)
|
|
{
|
|
Reset();
|
|
mUnit = eStyleUnit_Factor;
|
|
mValue.mFloat = aValue;
|
|
}
|
|
|
|
void nsStyleCoord::SetAngleValue(float aValue, nsStyleUnit aUnit)
|
|
{
|
|
Reset();
|
|
if (aUnit == eStyleUnit_Degree ||
|
|
aUnit == eStyleUnit_Grad ||
|
|
aUnit == eStyleUnit_Radian ||
|
|
aUnit == eStyleUnit_Turn) {
|
|
mUnit = aUnit;
|
|
mValue.mFloat = aValue;
|
|
} else {
|
|
NS_NOTREACHED("not an angle value");
|
|
}
|
|
}
|
|
|
|
void nsStyleCoord::SetFlexFractionValue(float aValue)
|
|
{
|
|
Reset();
|
|
mUnit = eStyleUnit_FlexFraction;
|
|
mValue.mFloat = aValue;
|
|
}
|
|
|
|
void nsStyleCoord::SetCalcValue(Calc* aValue)
|
|
{
|
|
Reset();
|
|
mUnit = eStyleUnit_Calc;
|
|
mValue.mPointer = aValue;
|
|
aValue->AddRef();
|
|
}
|
|
|
|
void nsStyleCoord::SetNormalValue()
|
|
{
|
|
Reset();
|
|
mUnit = eStyleUnit_Normal;
|
|
mValue.mInt = 0;
|
|
}
|
|
|
|
void nsStyleCoord::SetAutoValue()
|
|
{
|
|
Reset();
|
|
mUnit = eStyleUnit_Auto;
|
|
mValue.mInt = 0;
|
|
}
|
|
|
|
void nsStyleCoord::SetNoneValue()
|
|
{
|
|
Reset();
|
|
mUnit = eStyleUnit_None;
|
|
mValue.mInt = 0;
|
|
}
|
|
|
|
// accessors that are not inlined
|
|
|
|
double
|
|
nsStyleCoord::GetAngleValueInDegrees() const
|
|
{
|
|
return GetAngleValueInRadians() * (180.0 / M_PI);
|
|
}
|
|
|
|
double
|
|
nsStyleCoord::GetAngleValueInRadians() const
|
|
{
|
|
double angle = mValue.mFloat;
|
|
|
|
switch (GetUnit()) {
|
|
case eStyleUnit_Radian: return angle;
|
|
case eStyleUnit_Turn: return angle * 2 * M_PI;
|
|
case eStyleUnit_Degree: return angle * M_PI / 180.0;
|
|
case eStyleUnit_Grad: return angle * M_PI / 200.0;
|
|
|
|
default:
|
|
NS_NOTREACHED("unrecognized angular unit");
|
|
return 0.0;
|
|
}
|
|
}
|
|
|
|
nsStyleSides::nsStyleSides()
|
|
{
|
|
NS_FOR_CSS_SIDES(i) {
|
|
mUnits[i] = eStyleUnit_Null;
|
|
}
|
|
mozilla::PodArrayZero(mValues);
|
|
}
|
|
|
|
nsStyleSides::nsStyleSides(const nsStyleSides& aOther)
|
|
{
|
|
NS_FOR_CSS_SIDES(i) {
|
|
mUnits[i] = eStyleUnit_Null;
|
|
}
|
|
*this = aOther;
|
|
}
|
|
|
|
nsStyleSides::~nsStyleSides()
|
|
{
|
|
Reset();
|
|
}
|
|
|
|
nsStyleSides&
|
|
nsStyleSides::operator=(const nsStyleSides& aCopy)
|
|
{
|
|
if (this != &aCopy) {
|
|
NS_FOR_CSS_SIDES(i) {
|
|
nsStyleCoord::SetValue(mUnits[i], mValues[i],
|
|
aCopy.mUnits[i], aCopy.mValues[i]);
|
|
}
|
|
}
|
|
return *this;
|
|
}
|
|
|
|
bool nsStyleSides::operator==(const nsStyleSides& aOther) const
|
|
{
|
|
NS_FOR_CSS_SIDES(i) {
|
|
if (nsStyleCoord(mValues[i], (nsStyleUnit)mUnits[i]) !=
|
|
nsStyleCoord(aOther.mValues[i], (nsStyleUnit)aOther.mUnits[i])) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
void nsStyleSides::Reset()
|
|
{
|
|
NS_FOR_CSS_SIDES(i) {
|
|
nsStyleCoord::Reset(mUnits[i], mValues[i]);
|
|
}
|
|
}
|
|
|
|
nsStyleCorners::nsStyleCorners()
|
|
{
|
|
NS_FOR_CSS_HALF_CORNERS(i) {
|
|
mUnits[i] = eStyleUnit_Null;
|
|
}
|
|
mozilla::PodArrayZero(mValues);
|
|
}
|
|
|
|
nsStyleCorners::nsStyleCorners(const nsStyleCorners& aOther)
|
|
{
|
|
NS_FOR_CSS_HALF_CORNERS(i) {
|
|
mUnits[i] = eStyleUnit_Null;
|
|
}
|
|
*this = aOther;
|
|
}
|
|
|
|
nsStyleCorners::~nsStyleCorners()
|
|
{
|
|
Reset();
|
|
}
|
|
|
|
nsStyleCorners&
|
|
nsStyleCorners::operator=(const nsStyleCorners& aCopy)
|
|
{
|
|
if (this != &aCopy) {
|
|
NS_FOR_CSS_HALF_CORNERS(i) {
|
|
nsStyleCoord::SetValue(mUnits[i], mValues[i],
|
|
aCopy.mUnits[i], aCopy.mValues[i]);
|
|
}
|
|
}
|
|
return *this;
|
|
}
|
|
|
|
bool
|
|
nsStyleCorners::operator==(const nsStyleCorners& aOther) const
|
|
{
|
|
NS_FOR_CSS_HALF_CORNERS(i) {
|
|
if (nsStyleCoord(mValues[i], (nsStyleUnit)mUnits[i]) !=
|
|
nsStyleCoord(aOther.mValues[i], (nsStyleUnit)aOther.mUnits[i])) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
void nsStyleCorners::Reset()
|
|
{
|
|
NS_FOR_CSS_HALF_CORNERS(i) {
|
|
nsStyleCoord::Reset(mUnits[i], mValues[i]);
|
|
}
|
|
}
|
|
|
|
// Validation of NS_SIDE_IS_VERTICAL and NS_HALF_CORNER_IS_X.
|
|
#define CASE(side, result) \
|
|
static_assert(NS_SIDE_IS_VERTICAL(side) == result, \
|
|
"NS_SIDE_IS_VERTICAL is wrong")
|
|
CASE(NS_SIDE_TOP, false);
|
|
CASE(NS_SIDE_RIGHT, true);
|
|
CASE(NS_SIDE_BOTTOM, false);
|
|
CASE(NS_SIDE_LEFT, true);
|
|
#undef CASE
|
|
|
|
#define CASE(corner, result) \
|
|
static_assert(NS_HALF_CORNER_IS_X(corner) == result, \
|
|
"NS_HALF_CORNER_IS_X is wrong")
|
|
CASE(NS_CORNER_TOP_LEFT_X, true);
|
|
CASE(NS_CORNER_TOP_LEFT_Y, false);
|
|
CASE(NS_CORNER_TOP_RIGHT_X, true);
|
|
CASE(NS_CORNER_TOP_RIGHT_Y, false);
|
|
CASE(NS_CORNER_BOTTOM_RIGHT_X, true);
|
|
CASE(NS_CORNER_BOTTOM_RIGHT_Y, false);
|
|
CASE(NS_CORNER_BOTTOM_LEFT_X, true);
|
|
CASE(NS_CORNER_BOTTOM_LEFT_Y, false);
|
|
#undef CASE
|
|
|
|
// Validation of NS_HALF_TO_FULL_CORNER.
|
|
#define CASE(corner, result) \
|
|
static_assert(NS_HALF_TO_FULL_CORNER(corner) == result, \
|
|
"NS_HALF_TO_FULL_CORNER is wrong")
|
|
CASE(NS_CORNER_TOP_LEFT_X, NS_CORNER_TOP_LEFT);
|
|
CASE(NS_CORNER_TOP_LEFT_Y, NS_CORNER_TOP_LEFT);
|
|
CASE(NS_CORNER_TOP_RIGHT_X, NS_CORNER_TOP_RIGHT);
|
|
CASE(NS_CORNER_TOP_RIGHT_Y, NS_CORNER_TOP_RIGHT);
|
|
CASE(NS_CORNER_BOTTOM_RIGHT_X, NS_CORNER_BOTTOM_RIGHT);
|
|
CASE(NS_CORNER_BOTTOM_RIGHT_Y, NS_CORNER_BOTTOM_RIGHT);
|
|
CASE(NS_CORNER_BOTTOM_LEFT_X, NS_CORNER_BOTTOM_LEFT);
|
|
CASE(NS_CORNER_BOTTOM_LEFT_Y, NS_CORNER_BOTTOM_LEFT);
|
|
#undef CASE
|
|
|
|
// Validation of NS_FULL_TO_HALF_CORNER.
|
|
#define CASE(corner, vert, result) \
|
|
static_assert(NS_FULL_TO_HALF_CORNER(corner, vert) == result, \
|
|
"NS_FULL_TO_HALF_CORNER is wrong")
|
|
CASE(NS_CORNER_TOP_LEFT, false, NS_CORNER_TOP_LEFT_X);
|
|
CASE(NS_CORNER_TOP_LEFT, true, NS_CORNER_TOP_LEFT_Y);
|
|
CASE(NS_CORNER_TOP_RIGHT, false, NS_CORNER_TOP_RIGHT_X);
|
|
CASE(NS_CORNER_TOP_RIGHT, true, NS_CORNER_TOP_RIGHT_Y);
|
|
CASE(NS_CORNER_BOTTOM_RIGHT, false, NS_CORNER_BOTTOM_RIGHT_X);
|
|
CASE(NS_CORNER_BOTTOM_RIGHT, true, NS_CORNER_BOTTOM_RIGHT_Y);
|
|
CASE(NS_CORNER_BOTTOM_LEFT, false, NS_CORNER_BOTTOM_LEFT_X);
|
|
CASE(NS_CORNER_BOTTOM_LEFT, true, NS_CORNER_BOTTOM_LEFT_Y);
|
|
#undef CASE
|
|
|
|
// Validation of NS_SIDE_TO_{FULL,HALF}_CORNER.
|
|
#define CASE(side, second, result) \
|
|
static_assert(NS_SIDE_TO_FULL_CORNER(side, second) == result, \
|
|
"NS_SIDE_TO_FULL_CORNER is wrong")
|
|
CASE(NS_SIDE_TOP, false, NS_CORNER_TOP_LEFT);
|
|
CASE(NS_SIDE_TOP, true, NS_CORNER_TOP_RIGHT);
|
|
|
|
CASE(NS_SIDE_RIGHT, false, NS_CORNER_TOP_RIGHT);
|
|
CASE(NS_SIDE_RIGHT, true, NS_CORNER_BOTTOM_RIGHT);
|
|
|
|
CASE(NS_SIDE_BOTTOM, false, NS_CORNER_BOTTOM_RIGHT);
|
|
CASE(NS_SIDE_BOTTOM, true, NS_CORNER_BOTTOM_LEFT);
|
|
|
|
CASE(NS_SIDE_LEFT, false, NS_CORNER_BOTTOM_LEFT);
|
|
CASE(NS_SIDE_LEFT, true, NS_CORNER_TOP_LEFT);
|
|
#undef CASE
|
|
|
|
#define CASE(side, second, parallel, result) \
|
|
static_assert(NS_SIDE_TO_HALF_CORNER(side, second, parallel) == result, \
|
|
"NS_SIDE_TO_HALF_CORNER is wrong")
|
|
CASE(NS_SIDE_TOP, false, true, NS_CORNER_TOP_LEFT_X);
|
|
CASE(NS_SIDE_TOP, false, false, NS_CORNER_TOP_LEFT_Y);
|
|
CASE(NS_SIDE_TOP, true, true, NS_CORNER_TOP_RIGHT_X);
|
|
CASE(NS_SIDE_TOP, true, false, NS_CORNER_TOP_RIGHT_Y);
|
|
|
|
CASE(NS_SIDE_RIGHT, false, false, NS_CORNER_TOP_RIGHT_X);
|
|
CASE(NS_SIDE_RIGHT, false, true, NS_CORNER_TOP_RIGHT_Y);
|
|
CASE(NS_SIDE_RIGHT, true, false, NS_CORNER_BOTTOM_RIGHT_X);
|
|
CASE(NS_SIDE_RIGHT, true, true, NS_CORNER_BOTTOM_RIGHT_Y);
|
|
|
|
CASE(NS_SIDE_BOTTOM, false, true, NS_CORNER_BOTTOM_RIGHT_X);
|
|
CASE(NS_SIDE_BOTTOM, false, false, NS_CORNER_BOTTOM_RIGHT_Y);
|
|
CASE(NS_SIDE_BOTTOM, true, true, NS_CORNER_BOTTOM_LEFT_X);
|
|
CASE(NS_SIDE_BOTTOM, true, false, NS_CORNER_BOTTOM_LEFT_Y);
|
|
|
|
CASE(NS_SIDE_LEFT, false, false, NS_CORNER_BOTTOM_LEFT_X);
|
|
CASE(NS_SIDE_LEFT, false, true, NS_CORNER_BOTTOM_LEFT_Y);
|
|
CASE(NS_SIDE_LEFT, true, false, NS_CORNER_TOP_LEFT_X);
|
|
CASE(NS_SIDE_LEFT, true, true, NS_CORNER_TOP_LEFT_Y);
|
|
#undef CASE
|