minium.Offsets Maven / Gradle / Ivy
/*
* Copyright (C) 2015 The Minium Authors
*
* 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.
*/
package minium;
import minium.internal.InternalOffsets;
import com.google.common.base.Objects;
public class Offsets {
public static class ParseException extends RuntimeException {
private static final long serialVersionUID = 866185720502410258L;
public ParseException() {
super();
}
public ParseException(String message, Throwable cause) {
super(message, cause);
}
public ParseException(String message) {
super(message);
}
public ParseException(Throwable cause) {
super(cause);
}
}
public interface Offset {
public HorizontalOffset horizontal();
public VerticalOffset vertical();
public Point apply(Rectangle rectangle);
public Point offset(Dimension rectangle);
}
public interface HorizontalOffset {
public UnitHorizontalOffset plus(double val);
public HorizontalOffset plus(double val, Unit unit);
public UnitHorizontalOffset minus(double val);
public HorizontalOffset minus(double val, Unit unit);
public double apply(double width);
}
public interface UnitHorizontalOffset extends HorizontalOffset {
public HorizontalOffset percent();
public HorizontalOffset pixels();
}
public interface VerticalOffset {
public UnitVerticalOffset plus(double val);
public VerticalOffset plus(double val, Unit unit);
public UnitVerticalOffset minus(double val);
public VerticalOffset minus(double val, Unit unit);
public double apply(double height);
}
public interface UnitVerticalOffset {
public VerticalOffset percent();
public VerticalOffset pixels();
}
public static enum Unit {
PIXEL("px"),
PERCENT("%");
private final String name;
private Unit(String name) {
this.name = name;
}
@Override
public String toString() {
return name;
}
public static Unit of(String name) {
for (Unit unit : values()) {
if (Objects.equal(unit.name, name)) return unit;
}
return null;
}
}
public static enum VerticalReference implements VerticalOffset {
TOP("top") {
@Override
public double apply(double height) {
return 0;
}
},
MIDDLE("center") {
@Override
public double apply(double height) {
return height / 2;
}
},
BOTTOM("bottom") {
@Override
public double apply(double height) {
return height;
}
},
MINUS_INF("-inf") {
@Override
public double apply(double height) {
return Double.NEGATIVE_INFINITY;
}
@Override
public UnitVerticalOffset plus(double val) {
throw new UnsupportedOperationException();
}
@Override
public VerticalOffset plus(double val, Unit unit) {
throw new UnsupportedOperationException();
}
@Override
public UnitVerticalOffset minus(double val) {
throw new UnsupportedOperationException();
}
@Override
public VerticalOffset minus(double val, Unit unit) {
throw new UnsupportedOperationException();
}
},
PLUS_INF("+inf") {
@Override
public double apply(double height) {
return Double.POSITIVE_INFINITY;
}
@Override
public UnitVerticalOffset plus(double val) {
throw new UnsupportedOperationException();
}
@Override
public VerticalOffset plus(double val, Unit unit) {
throw new UnsupportedOperationException();
}
@Override
public UnitVerticalOffset minus(double val) {
throw new UnsupportedOperationException();
}
@Override
public VerticalOffset minus(double val, Unit unit) {
throw new UnsupportedOperationException();
}
};
private final String name;
private VerticalReference(String name) {
this.name = name;
}
@Override
public String toString() {
return name;
}
public static VerticalReference of(String name) {
for (VerticalReference ref : values()) {
if (Objects.equal(ref.name, name)) return ref;
}
return null;
}
@Override
public UnitVerticalOffset plus(double val) {
return new InternalOffsets.UnitVerticalOffsetImpl(this, val);
}
@Override
public VerticalOffset plus(double val, Unit unit) {
return new InternalOffsets.AbstractVerticalOffset(this, val, unit);
}
@Override
public UnitVerticalOffset minus(double val) {
return plus(-val);
}
@Override
public VerticalOffset minus(double val, Unit unit) {
return plus(-val, unit);
}
}
public static enum HorizontalReference implements HorizontalOffset {
LEFT("left") {
@Override
public double apply(double width) {
return 0;
}
},
CENTER("center") {
@Override
public double apply(double width) {
return width / 2;
}
},
RIGHT("right") {
@Override
public double apply(double width) {
return width;
}
},
MINUS_INF("-inf") {
@Override
public double apply(double width) {
return Double.NEGATIVE_INFINITY;
}
@Override
public UnitHorizontalOffset plus(double val) {
throw new UnsupportedOperationException();
}
@Override
public HorizontalOffset plus(double val, Unit unit) {
throw new UnsupportedOperationException();
}
@Override
public UnitHorizontalOffset minus(double val) {
throw new UnsupportedOperationException();
}
@Override
public HorizontalOffset minus(double val, Unit unit) {
throw new UnsupportedOperationException();
}
},
PLUS_INF("+inf") {
@Override
public double apply(double width) {
return Double.POSITIVE_INFINITY;
}
@Override
public UnitHorizontalOffset plus(double val) {
throw new UnsupportedOperationException();
}
@Override
public HorizontalOffset plus(double val, Unit unit) {
throw new UnsupportedOperationException();
}
@Override
public UnitHorizontalOffset minus(double val) {
throw new UnsupportedOperationException();
}
@Override
public HorizontalOffset minus(double val, Unit unit) {
throw new UnsupportedOperationException();
}
};
private final String name;
private HorizontalReference(String name) {
this.name = name;
}
@Override
public String toString() {
return name;
}
public static HorizontalReference of(String name) {
for (HorizontalReference ref : values()) {
if (Objects.equal(ref.name, name)) return ref;
}
return null;
}
@Override
public UnitHorizontalOffset plus(double val) {
return new InternalOffsets.UnitHorizontalOffsetImpl(this, val);
}
@Override
public HorizontalOffset plus(double val, Unit unit) {
return new InternalOffsets.AbstractHorizontalOffset(this, val, unit);
}
@Override
public UnitHorizontalOffset minus(double val) {
return plus(-val);
}
@Override
public HorizontalOffset minus(double val, Unit unit) {
return plus(-val, unit);
}
}
public static Offset at(HorizontalOffset horizontal, VerticalOffset vertical) {
return new InternalOffsets.OffsetImpl(horizontal, vertical);
}
public static Offset at(String pos) throws ParseException {
return new InternalOffsets.Parser().parse(pos);
}
}
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