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// Copyright (c) 2016 Timothy D. Jones
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
package io.github.jonestimd.swing.table.model;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import java.util.Map.Entry;
import java.util.function.BiPredicate;
import java.util.function.Function;
import java.util.function.Predicate;
import javax.swing.table.AbstractTableModel;
import com.google.common.collect.ArrayListMultimap;
import com.google.common.collect.ListMultimap;
import com.google.common.collect.Lists;
import com.google.common.collect.Multimap;
import com.google.common.collect.Multimaps;
import io.github.jonestimd.swing.table.sort.SectionTableRowSorter;
import io.github.jonestimd.util.JavaPredicates;
/**
* A {@link SectionTableModel} that stores the bean groups in a {@link ListMultimap}. Groups are displayed in ascending
* order based on the group name.
* @param the type of the group keys
* @param the class representing a row in the table
* @see SectionTableRowSorter
*/
public class BeanListMultimapTableModel extends AbstractTableModel implements ColumnIdentifier, SectionTableModel, BeanTableModel {
private static final int GROWTH_FACTOR = 10;
private final BeanTableAdapter beanTableAdapter;
private final Function groupingFunction;
private final Function groupNameFunction;
private final ListMultimap groups = ArrayListMultimap.create();
private final Comparator groupOrdering;
private final List sortedGroups = new ArrayList<>();
private int[] groupOffsets = new int[GROWTH_FACTOR];
/**
* Create a new model.
* @param columnAdapters provides access to column values on the row beans
* @param tableDataProviders supplemental data providers
* @param groupingFunction provides the group key for a row
* @param groupNameFunction provides the display name for a group
*/
public BeanListMultimapTableModel(List> columnAdapters,
Iterable> tableDataProviders,
Function groupingFunction, Function groupNameFunction) {
this.beanTableAdapter = new BeanTableAdapter<>(this, columnAdapters, tableDataProviders);
this.groupingFunction = groupingFunction;
this.groupNameFunction = groupNameFunction;
groupOrdering = Comparator.comparing(groupNameFunction);
}
@Override
public boolean isSectionRow(int rowIndex) {
return Arrays.binarySearch(groupOffsets, 0, sortedGroups.size(), rowIndex) >= 0;
}
@Override
public int getSectionRow(int rowIndex) {
return groupOffsets[getGroupNumber(rowIndex)];
}
@Override
public String getSectionName(int rowIndex) {
int groupIndex = getGroupNumber(rowIndex);
return groupNameFunction.apply(sortedGroups.get(groupIndex));
}
@Override
public int getGroupNumber(int rowIndex) {
int i = Arrays.binarySearch(groupOffsets, 0, sortedGroups.size(), rowIndex);
return i >= 0 ? i : -i - 2;
}
@Override
public List getGroup(int groupNumber) {
return groups.get(sortedGroups.get(groupNumber));
}
public void setBeans(Collection beans) {
setBeans(Multimaps.index(beans, groupingFunction::apply));
}
public void setBeans(Multimap beans) {
groups.clear();
groups.putAll(beans);
sortedGroups.clear();
sortedGroups.addAll(groups.keySet());
sortedGroups.sort(groupOrdering);
groupOffsets = new int[sortedGroups.size() + GROWTH_FACTOR];
int groupIndex = 0;
for (G group : sortedGroups) {
groupOffsets[groupIndex+1] = groupOffsets[groupIndex] + groups.get(group).size() + 1;
groupIndex++;
}
fireTableDataChanged();
beanTableAdapter.setBeans(beans.values());
}
@Override
public void updateBeans(Collection beans, BiPredicate isEqual) {
for (T bean : beans) {
int index = indexOf(item -> isEqual.test(bean, item));
if (index < 0) put(groupingFunction.apply(bean), bean);
else setBean(index, bean);
}
}
public List getBeans() {
return Lists.newArrayList(groups.values());
}
public List getSections() {
return Collections.unmodifiableList(sortedGroups);
}
public List getBeans(G group) {
return Collections.unmodifiableList(groups.get(group));
}
@Override
public int getBeanCount() {
return groups.size();
}
@Override
public T getBean(int rowIndex) {
if (isSectionRow(rowIndex)) {
return null;
}
int groupNumber = getGroupNumber(rowIndex);
return groups.get(sortedGroups.get(groupNumber)).get(rowIndex - groupOffsets[groupNumber] - 1);
}
protected void setBean(int rowIndex, T bean) {
int groupNumber = getGroupNumber(rowIndex);
groups.get(sortedGroups.get(groupNumber)).set(rowIndex - groupOffsets[groupNumber] - 1, bean);
fireTableRowsUpdated(rowIndex, rowIndex);
}
@Override
public Object getValue(T bean, int columnIndex) {
return beanTableAdapter.getValue(bean, columnIndex);
}
public void addBean(T bean) {
put(groupingFunction.apply(bean), bean);
}
/**
* Add a bean to a group.
*/
public void put(G group, T bean) {
groups.put(group, bean);
if (! sortedGroups.contains(group)) {
sortedGroups.add(group);
sortedGroups.sort(groupOrdering);
int groupIndex = sortedGroups.indexOf(group);
groupAdded(groupIndex, 1);
}
else {
int groupIndex = sortedGroups.indexOf(group);
groupChanged(groupIndex, 1);
fireTableRowsInserted(groupOffsets[groupIndex+1]-1, groupOffsets[groupIndex+1]-1);
}
beanTableAdapter.addBean(bean);
}
/**
* Remove a bean from a group. If the group is empty then the group is also removed.
*/
public void remove(int rowIndex) {
T bean = getBean(rowIndex);
int groupIndex = getGroupNumber(rowIndex);
G group = sortedGroups.get(groupIndex);
if (groups.remove(group, bean)) {
if (groups.get(group).isEmpty()) {
groupRemoved(groupIndex, rowIndex - 1, 1);
}
else {
groupChanged(groupIndex, -1);
fireTableRowsDeleted(rowIndex, rowIndex);
}
beanTableAdapter.removeBean(bean);
}
}
/**
* Remove an entire group.
* @return the removed beans.
*/
public List removeAll(G group) {
int groupIndex = sortedGroups.indexOf(group);
int groupOffset = groupOffsets[groupIndex];
List beans = groups.removeAll(group);
groupRemoved(groupIndex, groupOffset, beans.size());
return beans;
}
/**
* Add beans to a group.
*/
public void putAll(G group, Collection beans) {
groups.putAll(group, beans);
if (! sortedGroups.contains(group)) {
sortedGroups.add(group);
sortedGroups.sort(groupOrdering);
int groupIndex = sortedGroups.indexOf(group);
groupAdded(groupIndex, beans.size());
}
else {
int groupIndex = sortedGroups.indexOf(group);
groupChanged(groupIndex, beans.size());
fireTableRowsInserted(groupOffsets[groupIndex+1]-beans.size(), groupOffsets[groupIndex+1]-1);
}
}
private void groupRemoved(int groupIndex, int groupOffset, int size) {
groupChanged(groupIndex, -size - 1);
sortedGroups.remove(groupIndex);
System.arraycopy(groupOffsets, groupIndex + 1, groupOffsets, groupIndex, groupOffsets.length - groupIndex - 1);
fireTableRowsDeleted(groupOffset, groupOffset + size);
}
private void groupAdded(int groupIndex, int groupSize) {
if (sortedGroups.size()+1 > groupOffsets.length) {
groupOffsets = Arrays.copyOf(groupOffsets, groupOffsets.length + GROWTH_FACTOR);
}
for (int i = sortedGroups.size(); i > groupIndex; i--) {
groupOffsets[i] = groupOffsets[i-1] + 1 + groupSize;
}
fireTableRowsInserted(groupOffsets[groupIndex], groupOffsets[groupIndex]+groupSize);
}
private void groupChanged(int groupIndex, int delta) {
for (int i = groupIndex+1; i <= sortedGroups.size(); i++) {
groupOffsets[i] += delta;
}
}
@Override
public ColumnAdapter getColumnIdentifier(int modelIndex) {
return beanTableAdapter.getColumnAdapter(modelIndex);
}
@Override
public String getColumnName(int modelIndex) {
return beanTableAdapter.getColumnName(modelIndex);
}
@Override
public Class getColumnClass(int columnIndex) {
return beanTableAdapter.getColumnClass(columnIndex);
}
@Override
public int getRowCount() {
return sortedGroups.size() + groups.values().size();
}
@Override
public int getColumnCount() {
return beanTableAdapter.getColumnCount();
}
// TODO call from fireEvent methods instead of from sub-class
protected void notifyDataProviders(T row, String columnId, Object oldValue) {
beanTableAdapter.notifyDataProviders(row, indexOf(row::equals), columnId, oldValue);
}
/**
* Find the index of a bean matching a predicate.
* @return the index of the first matching bean or -1 if none match.
*/
public int indexOf(Predicate predicate) {
return groups.entries().stream().filter(JavaPredicates.onResult(Entry::getValue, predicate))
.findFirst().map(this::indexOf)
.orElse(-1);
}
private int indexOf(Entry entry) {
int groupIndex = sortedGroups.indexOf(entry.getKey());
return groupOffsets[groupIndex] + groups.get(entry.getKey()).indexOf(entry.getValue()) + 1;
}
@Override
public Object getValueAt(int rowIndex, int columnIndex) {
if (isSectionRow(rowIndex)) {
return null;
}
return beanTableAdapter.getValue(getBean(rowIndex), columnIndex);
}
@Override
public boolean isCellEditable(int rowIndex, int columnIndex) {
return beanTableAdapter.isCellEditable(getBean(rowIndex), columnIndex);
}
@Override
public void setValueAt(Object aValue, int rowIndex, int columnIndex) {
if (isSectionRow(rowIndex)) {
throw new IllegalArgumentException("Can't edit section row");
}
beanTableAdapter.setValue(aValue, getBean(rowIndex), rowIndex, columnIndex);
fireTableCellUpdated(rowIndex, columnIndex);
}
}
