/*
* Copyright 2015-16 Skynav, Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY SKYNAV, INC. AND ITS CONTRIBUTORS “AS IS” AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL SKYNAV, INC. OR ITS CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.skynav.ttpe.style;
import java.text.MessageFormat;
import java.util.Arrays;
import java.util.Locale;
import com.skynav.ttpe.geometry.Dimension;
import com.skynav.ttpe.geometry.Direction;
import com.skynav.ttpe.geometry.WritingMode;
public class Padding {
private static final double[] zeroPadding = new double[4];
private static final MessageFormat doubleFormatter = new MessageFormat("{0,number,#.####}", Locale.US);
public static final Padding NONE = new Padding(null);
private double[] padding;
public Padding(double[] padding) {
this.padding = Arrays.copyOf((padding != null) ? padding : zeroPadding, 4);
}
public boolean isNone() {
return (this == NONE) || Arrays.equals(padding, zeroPadding);
}
public double[] getPadding() {
return Arrays.copyOf(padding, 4);
}
public double getBefore() {
return padding[0];
}
public double getAfter() {
return padding[2];
}
public double getStart() {
return padding[3];
}
public double getEnd() {
return padding[1];
}
public double getTop(WritingMode wm) {
if (wm.isVertical()) {
Direction d = wm.getDirection(Dimension.IPD);
if (d == Direction.TB)
return padding[3];
else if (d == Direction.BT)
return padding[1];
} else {
Direction d = wm.getDirection(Dimension.BPD);
if (d == Direction.TB)
return padding[0];
else if (d == Direction.BT)
return padding[2];
}
return 0;
}
public double getBottom(WritingMode wm) {
if (wm.isVertical()) {
Direction d = wm.getDirection(Dimension.IPD);
if (d == Direction.TB)
return padding[1];
else if (d == Direction.BT)
return padding[3];
} else {
Direction d = wm.getDirection(Dimension.BPD);
if (d == Direction.TB)
return padding[2];
else if (d == Direction.BT)
return padding[0];
}
return 0;
}
public double getLeft(WritingMode wm) {
if (wm.isVertical()) {
Direction d = wm.getDirection(Dimension.BPD);
if (d == Direction.LR)
return padding[0];
else if (d == Direction.RL)
return padding[2];
} else {
Direction d = wm.getDirection(Dimension.IPD);
if (d == Direction.LR)
return padding[3];
else if (d == Direction.RL)
return padding[1];
}
return 0;
}
public double getRight(WritingMode wm) {
if (wm.isVertical()) {
Direction d = wm.getDirection(Dimension.BPD);
if (d == Direction.LR)
return padding[2];
else if (d == Direction.RL)
return padding[0];
} else {
Direction d = wm.getDirection(Dimension.IPD);
if (d == Direction.LR)
return padding[1];
else if (d == Direction.RL)
return padding[3];
}
return 0;
}
@Override
public int hashCode() {
return Arrays.hashCode(padding);
}
@Override
public boolean equals(Object o) {
if (o instanceof Padding) {
Padding other = (Padding) o;
return Arrays.equals(padding, other.padding);
} else
return false;
}
@Override
public String toString() {
StringBuffer sb = new StringBuffer();
sb.append('[');
sb.append(doubleFormatter.format(new Object[] {padding[0]}));
sb.append("px,");
sb.append(doubleFormatter.format(new Object[] {padding[1]}));
sb.append("px,");
sb.append(doubleFormatter.format(new Object[] {padding[2]}));
sb.append("px,");
sb.append(doubleFormatter.format(new Object[] {padding[3]}));
sb.append("px");
sb.append(']');
return sb.toString();
}
}