| // Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, |
| // software distributed under the License is distributed on an |
| // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| // KIND, either express or implied. See the License for the |
| // specific language governing permissions and limitations |
| // under the License. |
| |
| #pragma once |
| |
| //////////////////////////////////////////////////////////////////////////////////////////////////// |
| // // |
| // Units // |
| // // |
| //////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| typedef enum { |
| UnitsUnspecified = -1, |
| UnitsIn = 0, |
| UnitsCm = 1, |
| UnitsMm = 2, |
| UnitsPt = 3, |
| UnitsPc = 4, |
| UnitsPx = 5, |
| UnitsPct = 6 |
| } Units; |
| |
| double convertBetweenUnits(double value, Units from, Units to); |
| |
| //////////////////////////////////////////////////////////////////////////////////////////////////// |
| // // |
| // CSSLength // |
| // // |
| //////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| typedef struct CSSLength CSSLength; |
| |
| struct CSSLength { |
| double value; |
| Units units; |
| int valueValid; |
| int unitsValid; |
| }; |
| |
| extern CSSLength CSSLengthNull; |
| |
| CSSLength CSSLengthFromValue(double value, Units units); |
| CSSLength CSSLengthFromString(const char *str); |
| |
| int CSSLengthIsValid(CSSLength length); |
| int CSSLengthIsPercentage(CSSLength length); |
| int CSSLengthIsAbsolute(CSSLength length); |
| |
| double CSSLengthToAbsolute(CSSLength length, double total, double valueUnits); |
| double CSSLengthToPts(CSSLength length, double total); |