/*
* Copyright (c) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 David Berkman
*
* This file is part of the SmallMind Code Project.
*
* The SmallMind Code Project is free software, you can redistribute
* it and/or modify it under either, at your discretion...
*
* 1) The terms of GNU Affero General Public License as published by the
* Free Software Foundation, either version 3 of the License, or (at
* your option) any later version.
*
* ...or...
*
* 2) The terms of the Apache License, Version 2.0.
*
* The SmallMind Code Project is distributed in the hope that it will
* be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License or Apache License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* and the Apache License along with the SmallMind Code Project. If not, see
* <http://www.gnu.org/licenses/> or <http://www.apache.org/licenses/LICENSE-2.0>.
*
* Additional permission under the GNU Affero GPL version 3 section 7
* ------------------------------------------------------------------
* If you modify this Program, or any covered work, by linking or
* combining it with other code, such other code is not for that reason
* alone subject to any of the requirements of the GNU Affero GPL
* version 3.
*/
package org.smallmind.nutsnbolts.layout;
import org.smallmind.nutsnbolts.lang.UnknownSwitchCaseException;
public class ParallelBox extends Box<ParallelBox> {
private Alignment alignment;
private Double minimumOverrideMeasurement;
private Double preferredOverrideMeasurement;
private Double maximumOverrideMeasurement;
protected ParallelBox (ParaboxLayout layout) {
this(layout, Alignment.LEADING);
}
protected ParallelBox (ParaboxLayout layout, Alignment alignment) {
super(ParallelBox.class, layout);
this.alignment = alignment;
}
public Alignment getAlignment () {
return alignment;
}
public ParallelBox setAlignment (Alignment alignment) {
this.alignment = alignment;
return this;
}
public Double getMinimumOverrideMeasurement () {
return minimumOverrideMeasurement;
}
public ParallelBox setMinimumOverrideMeasurement (Double minimumOverrideMeasurement) {
this.minimumOverrideMeasurement = minimumOverrideMeasurement;
return this;
}
public Double getPreferredOverrideMeasurement () {
return preferredOverrideMeasurement;
}
public ParallelBox setPreferredOverrideMeasurement (Double preferredOverrideMeasurement) {
this.preferredOverrideMeasurement = preferredOverrideMeasurement;
return this;
}
public Double getMaximumOverrideMeasurement () {
return maximumOverrideMeasurement;
}
public ParallelBox setMaximumOverrideMeasurement (Double maximumOverrideMeasurement) {
this.maximumOverrideMeasurement = maximumOverrideMeasurement;
return this;
}
@Override
public double calculateMinimumMeasurement (Bias bias, LayoutTailor tailor) {
return calculateMeasurement(bias, TapeMeasure.MINIMUM, minimumOverrideMeasurement, tailor);
}
@Override
public double calculatePreferredMeasurement (Bias bias, LayoutTailor tailor) {
return calculateMeasurement(bias, TapeMeasure.PREFERRED, preferredOverrideMeasurement, tailor);
}
@Override
public double calculateMaximumMeasurement (Bias bias, LayoutTailor tailor) {
return calculateMeasurement(bias, TapeMeasure.MAXIMUM, maximumOverrideMeasurement, tailor);
}
private synchronized double calculateMeasurement (Bias bias, TapeMeasure tapeMeasure, Double unbiasedMeasurementOverride, LayoutTailor tailor) {
double maxAscent = 0;
double maxDescent = 0;
if (!getElements().isEmpty()) {
for (ParaboxElement<?> element : getElements()) {
double currentMeasurement = (unbiasedMeasurementOverride != null) ? unbiasedMeasurementOverride : tapeMeasure.getMeasure(bias, element, tailor);
double currentAscent = (!alignment.equals(Alignment.BASELINE)) ? currentMeasurement : element.getBaseline(bias, currentMeasurement);
double currentDescent;
if (currentAscent > maxAscent) {
maxAscent = currentAscent;
}
if ((currentDescent = (currentMeasurement - currentAscent)) > maxDescent) {
maxDescent = currentDescent;
}
}
}
return maxAscent + maxDescent;
}
@Override
public synchronized void doLayout (Bias bias, double containerPosition, double containerMeasurement, LayoutTailor tailor) {
if (!getElements().isEmpty()) {
BaselineCalculations baselineCalculations = (alignment.equals(Alignment.BASELINE)) ? new BaselineCalculations(bias, maximumOverrideMeasurement, containerMeasurement, getElements(), tailor) : null;
double elementMeasurement;
int index = 0;
for (ParaboxElement<?> element : getElements()) {
if (containerMeasurement <= (elementMeasurement = (minimumOverrideMeasurement != null) ? minimumOverrideMeasurement : element.getMinimumMeasurement(bias, tailor))) {
tailor.applyLayout(bias, containerPosition, elementMeasurement, element);
}
else if (containerMeasurement <= (elementMeasurement = (maximumOverrideMeasurement != null) ? maximumOverrideMeasurement : element.getMaximumMeasurement(bias, tailor))) {
tailor.applyLayout(bias, containerPosition, containerMeasurement, element);
}
else {
switch (alignment) {
case FIRST:
tailor.applyLayout(bias, containerPosition, elementMeasurement, element);
break;
case LAST:
tailor.applyLayout(bias, containerPosition + containerMeasurement - elementMeasurement, elementMeasurement, element);
break;
case LEADING:
if (!bias.equals(getLayout().getContainer().getPlatform().getOrientation().getBias())) {
tailor.applyLayout(bias, containerPosition, elementMeasurement, element);
}
else {
switch (getLayout().getContainer().getPlatform().getOrientation().getFlow()) {
case FIRST_TO_LAST:
tailor.applyLayout(bias, containerPosition, elementMeasurement, element);
break;
case LAST_TO_FIRST:
tailor.applyLayout(bias, containerPosition + containerMeasurement - elementMeasurement, elementMeasurement, element);
break;
default:
throw new UnknownSwitchCaseException(getLayout().getContainer().getPlatform().getOrientation().getFlow().name());
}
}
break;
case TRAILING:
if (!bias.equals(getLayout().getContainer().getPlatform().getOrientation().getBias())) {
tailor.applyLayout(bias, containerPosition + containerMeasurement - elementMeasurement, elementMeasurement, element);
}
else {
switch (getLayout().getContainer().getPlatform().getOrientation().getFlow()) {
case FIRST_TO_LAST:
tailor.applyLayout(bias, containerPosition + containerMeasurement - elementMeasurement, elementMeasurement, element);
break;
case LAST_TO_FIRST:
tailor.applyLayout(bias, containerPosition, elementMeasurement, element);
break;
default:
throw new UnknownSwitchCaseException(getLayout().getContainer().getPlatform().getOrientation().getFlow().name());
}
}
break;
case CENTER:
tailor.applyLayout(bias, containerPosition + ((containerMeasurement - elementMeasurement) / 2.0D), elementMeasurement, element);
break;
case BASELINE:
if (baselineCalculations == null) {
throw new NullPointerException();
}
double top;
if ((top = baselineCalculations.getIdealizedBaseline() - baselineCalculations.getElementAscentsDescents()[index].getFirst()) < 0) {
top = 0;
}
else if (top + elementMeasurement > containerMeasurement) {
top = containerMeasurement - elementMeasurement;
}
tailor.applyLayout(bias, containerPosition + top, elementMeasurement, element);
break;
default:
throw new UnknownSwitchCaseException(alignment.name());
}
}
}
}
}
}