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QtJambi base module containing QtCore, QtGui and QtWidgets.
/****************************************************************************
**
** Copyright (C) 2009-2024 Dr. Peter Droste, Omix Visualization GmbH & Co. KG. All rights reserved.
**
** This file is part of Qt Jambi.
**
** $BEGIN_LICENSE$
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
** $END_LICENSE$
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
****************************************************************************/
package io.qt.core;
import java.util.AbstractMap.SimpleEntry;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.Set;
import io.qt.NativeAccess;
import io.qt.QtUninvokable;
/**
* Abstract superclass of multi-associative containers in Qt.
*/
abstract class AbstractMultiAssociativeContainer extends AbstractContainer implements Map>, Iterable>, Cloneable {
@NativeAccess
private static boolean putMultiMap(Map> map, Object key, Object value) {
map.computeIfAbsent(key, k -> new ArrayList<>()).add(value);
return true;
}
/**
* Returns a {@link List} of the keys contained in this associative container.
* @return list of keys
*/
@QtUninvokable
public abstract QList uniqueKeys();
/**
* Returns a {@link Set} view of the keys contained in this map.
*/
@Override
@QtUninvokable
public final Set keySet() {
return AbstractAssociativeContainer.keySet(uniqueKeys());
}
/**
* Returns all values for this key.
*/
public abstract QList values(Key key);
/**
* Returns a {@link Set} view of the mappings contained in this map.
*/
@Override
@QtUninvokable
public final Set>> entrySet() {
QList keys = uniqueKeys();
return new Set>>(){
@Override
@QtUninvokable
public int size() {
return keys.size();
}
@Override
@QtUninvokable
public boolean isEmpty() {
return keys.isEmpty();
}
@Override
@QtUninvokable
public boolean contains(Object o) {
if(o instanceof QPair) {
@SuppressWarnings("unchecked")
QPair pair = (QPair)o;
if(containsKey(pair.first)) {
return Objects.equals(values(pair.first), pair.second);
}
}
return false;
}
@Override
@QtUninvokable
public Iterator>> iterator() {
if(isEmpty()) {
return Collections.>>emptyList().iterator();
}
return new Iterator>>(){
private final Iterator iter = keys.iterator();
@Override
public boolean hasNext() {
return iter.hasNext();
}
@Override
public Entry> next() {
Key key = iter.next();
return new SimpleEntry<>(key, values(key));
}
};
}
@Override
@QtUninvokable
public Object[] toArray() {
Object[] result = new Object[size()];
int i = 0;
for(Entry> e : this) {
result[i++] = e;
}
return result;
}
@SuppressWarnings("unchecked")
@Override
@QtUninvokable
public A[] toArray(A[] a) {
if (a.length < size())
a = (A[])Arrays.copyOf(a, size(), a.getClass());
int i = 0;
for(Entry> e : this) {
a[i++] = (A)e;
}
return a;
}
@Override
@QtUninvokable
public boolean add(Entry> e) {
throw new UnsupportedOperationException();
}
@Override
@QtUninvokable
public boolean remove(Object o) {
throw new UnsupportedOperationException();
}
@Override
@QtUninvokable
public boolean containsAll(Collection c) {
for(Object o : c) {
if(!contains(o))
return false;
}
return true;
}
@Override
@QtUninvokable
public boolean addAll(Collection>> c) {
throw new UnsupportedOperationException();
}
@Override
@QtUninvokable
public boolean retainAll(Collection c) {
throw new UnsupportedOperationException();
}
@Override
@QtUninvokable
public boolean removeAll(Collection c) {
throw new UnsupportedOperationException();
}
@Override
@QtUninvokable
public void clear() {
throw new UnsupportedOperationException();
}
};
}
/**
* Provides a mutable C++ iterator to the containers begin.
* @return begin
*/
@QtUninvokable
protected abstract QAssociativeIterator begin();
/**
* Provides a mutable C++ iterator to the containers end.
* @return end
*/
@QtUninvokable
protected abstract QAssociativeIterator end();
/**
* Provides a constant C++ iterator to the containers begin.
* @return begin
*/
@QtUninvokable
protected abstract QAssociativeConstIterator constBegin();
/**
* Provides a constant C++ iterator to the containers end.
* @return end
*/
@QtUninvokable
protected abstract QAssociativeConstIterator constEnd();
/**
* Copies all of the mappings from the specified map to this map.
*/
@Override
@QtUninvokable
public final void putAll(Map> m) {
for(Map.Entry> entry : m.entrySet()) {
put(entry.getKey(), entry.getValue());
}
}
/**
* Returns an iterator over elements of type {@code QPair}.
* @return an Iterator
*/
@Override
@QtUninvokable
public final Iterator> iterator() {
return constBegin().iterator();
}
/**
* {@inheritDoc}
*/
AbstractMultiAssociativeContainer(QPrivateConstructor p) {
super(p);
}
/**
* Creates and returns a copy of this multi-associative container.
*/
@Override
public abstract AbstractMultiAssociativeContainer clone();
/**
* Returns a string representation of this associative container.
* @return String
*/
@QtUninvokable
public String toString() {
Iterator> it = iterator();
if (! it.hasNext())
return "{}";
StringBuilder sb = new StringBuilder();
sb.append('{');
for (;;) {
QPair e = it.next();
sb.append(e.first == this ? "(this Map)" : e.first);
sb.append(',').append(' ');
sb.append(e.second == this ? "(this Map)" : e.second);
if (! it.hasNext())
return sb.append('}').toString();
sb.append(';').append(' ');
}
}
}