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/*
* Copyright 1999-2004 The Apache Software Foundation.
*
* Licensed 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.
*/
/* $Id$ */
package org.apache.fop.fo.properties;
/**
* An absolute length quantity in XSL
*/
public class FixedLength extends LengthProperty {
private int millipoints;
/**
* Set the length given
* @param numRelUnits the number of relative units
* @param iCurFontSize the current font size in base units.
*/
public FixedLength(double numRelUnits, int iCurFontSize) {
millipoints = (int) (numRelUnits * (double)iCurFontSize);
}
/**
* Set the length given a number of units and a unit name.
* @param numUnits quantity of input units
* @param units input unit specifier (in, cm, etc.)
*/
public FixedLength(double numUnits, String units) {
convert(numUnits, units);
}
/**
* @param baseUnits the length as a number of base units (millipoints)
*/
public FixedLength(int baseUnits) {
millipoints = baseUnits;
}
/**
* Convert the given length to a dimensionless integer representing
* a whole number of base units (milli-points).
* @param dvalue quantity of input units
* @param unit input unit specifier (in, cm, etc.)
*/
protected void convert(double dvalue, String unit) {
int assumedResolution = 1; // points/pixel
if (unit.equals("in")) {
dvalue = dvalue * 72;
} else if (unit.equals("cm")) {
dvalue = dvalue * 28.3464567;
} else if (unit.equals("mm")) {
dvalue = dvalue * 2.83464567;
} else if (unit.equals("pt")) {
// Do nothing.
// dvalue = dvalue;
} else if (unit.equals("pc")) {
dvalue = dvalue * 12;
/*
* } else if (unit.equals("em")) {
* dvalue = dvalue * fontsize;
*/
} else if (unit.equals("px")) {
dvalue = dvalue * assumedResolution;
} else {
dvalue = 0;
//log.error("unknown length unit '" + unit
// + "'");
}
millipoints = (int)(dvalue * 1000);
}
/**
* Returns the length in 1/1000ths of a point (millipoints)
* @return the length in millipoints
*/
public int getValue() {
return millipoints;
}
/**
* Returns the value as numeric.
* @return the length in millipoints
*/
public double getNumericValue() {
return millipoints;
}
/**
* Return true since FixedLength are always absolute.
* @see org.apache.fop.datatypes.Numeric#isAbsolute()
*/
public boolean isAbsolute() {
return true;
}
/**
* @see java.lang.Object#toString()
*/
public String toString() {
return millipoints + "mpt";
}
}
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