com.trolltech.qt.gui
Class QTreeWidgetItemIterator

java.lang.Object
  com.trolltech.qt.internal.QSignalEmitterInternal
      com.trolltech.qt.QSignalEmitter
          com.trolltech.qt.QtJambiObject
              com.trolltech.qt.gui.QTreeWidgetItemIterator

All Implemented Interfaces:

QtJambiInterface, java.lang.Cloneable

public class QTreeWidgetItemIterator
extends QtJambiObject
implements java.lang.Cloneable

The QTreeWidgetItemIterator class provides a way to iterate over the items in a QTreeWidget instance. The iterator will walk the items in a pre-order traversal order, thus visiting the parent node before it continues to the child nodes.

For example, the following code examples each item in a tree, checking the text in the first column against a user-specified search string:

    QTreeWidgetItemIterator it = new QTreeWidgetItemIterator(treeWidget);
    while (it.current() != null) {
        if (it.current().text(0).equals(itemText))
            treeWidget.setItemSelected(it, true);
        it.next();
    }

It is also possible to filter out certain types of node by passing certain flags to the constructor of QTreeWidgetItemIterator.

See also:

QTreeWidget, Model/View Programming, and QTreeWidgetItem.

Nested Class Summary

static class	QTreeWidgetItemIterator.IteratorFlag These flags can be passed to a QTreeWidgetItemIterator constructor (OR-ed together if more than one is used), so that the iterator will only iterate over items that match the given flags.
static class	QTreeWidgetItemIterator.IteratorFlags

Nested classes/interfaces inherited from class com.trolltech.qt.QSignalEmitter

QSignalEmitter.AbstractSignal, QSignalEmitter.PrivateSignal0, QSignalEmitter.PrivateSignal1, QSignalEmitter.PrivateSignal2, QSignalEmitter.PrivateSignal3, QSignalEmitter.PrivateSignal4, QSignalEmitter.PrivateSignal5, QSignalEmitter.PrivateSignal6, QSignalEmitter.PrivateSignal7, QSignalEmitter.PrivateSignal8, QSignalEmitter.PrivateSignal9, QSignalEmitter.Signal0, QSignalEmitter.Signal1, QSignalEmitter.Signal2, QSignalEmitter.Signal3, QSignalEmitter.Signal4, QSignalEmitter.Signal5, QSignalEmitter.Signal6, QSignalEmitter.Signal7, QSignalEmitter.Signal8, QSignalEmitter.Signal9

Nested classes/interfaces inherited from class com.trolltech.qt.internal.QSignalEmitterInternal

com.trolltech.qt.internal.QSignalEmitterInternal.AbstractSignalInternal

Field Summary

Fields inherited from class com.trolltech.qt.internal.QSignalEmitterInternal

currentSender

Constructor Summary

QTreeWidgetItemIterator(QTreeWidget widget)
Constructs an iterator for the given widget that uses the specified flags to determine which items are found during iteration.

QTreeWidgetItemIterator(QTreeWidgetItem item)
Constructs an iterator for the given item that uses the specified flags to determine which items are found during iteration.

QTreeWidgetItemIterator(QTreeWidgetItemIterator it)
Constructs an iterator for the same QTreeWidget as it.

QTreeWidgetItemIterator(QTreeWidgetItem item, QTreeWidgetItemIterator.IteratorFlag[] flags)
This is an overloaded method provided for convenience.

QTreeWidgetItemIterator(QTreeWidgetItem item, QTreeWidgetItemIterator.IteratorFlags flags)
Constructs an iterator for the given widget that uses the specified flags to determine which items are found during iteration.

QTreeWidgetItemIterator(QTreeWidget widget, QTreeWidgetItemIterator.IteratorFlag[] flags)

QTreeWidgetItemIterator(QTreeWidget widget, QTreeWidgetItemIterator.IteratorFlags flags)

Method Summary

QTreeWidgetItemIterator	clone() This method is reimplemented for internal reasons
QTreeWidgetItem	current() Returns the current item.
void	next() Advances the iterator by one item.
void	next(int i) This function advances the iterator by i items.
void	previous() Makes the iterator go backwards by one item.
void	previous(int i) Makes the iterator go backwards by i items.

Methods inherited from class com.trolltech.qt.QtJambiObject

dispose, disposed, equals, finalize, reassignNativeResources, tr, tr, tr

Methods inherited from class com.trolltech.qt.QSignalEmitter

blockSignals, disconnect, disconnect, signalsBlocked, signalSender, thread

Methods inherited from class com.trolltech.qt.internal.QSignalEmitterInternal

__qt_signalInitialization

Methods inherited from class java.lang.Object

getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.trolltech.qt.QtJambiInterface

disableGarbageCollection, nativeId, nativePointer, reenableGarbageCollection, setJavaOwnership

Constructor Detail

QTreeWidgetItemIterator

public QTreeWidgetItemIterator(QTreeWidget widget,
                               QTreeWidgetItemIterator.IteratorFlag[] flags)

QTreeWidgetItemIterator

public QTreeWidgetItemIterator(QTreeWidget widget)

Constructs an iterator for the given widget that uses the specified flags to determine which items are found during iteration. The iterator is set to point to the first top-level item contained in the widget, or the next matching item if the top-level item doesn't match the flags.

See also:

QTreeWidgetItemIterator::IteratorFlag .

QTreeWidgetItemIterator

public QTreeWidgetItemIterator(QTreeWidget widget,
                               QTreeWidgetItemIterator.IteratorFlags flags)

QTreeWidgetItemIterator

public QTreeWidgetItemIterator(QTreeWidgetItem item,
                               QTreeWidgetItemIterator.IteratorFlag[] flags)

This is an overloaded method provided for convenience.

QTreeWidgetItemIterator

public QTreeWidgetItemIterator(QTreeWidgetItem item)

Constructs an iterator for the given item that uses the specified flags to determine which items are found during iteration. The iterator is set to point to item, or the next matching item if item doesn't match the flags.

See also:

QTreeWidgetItemIterator::IteratorFlag .

QTreeWidgetItemIterator

public QTreeWidgetItemIterator(QTreeWidgetItem item,
                               QTreeWidgetItemIterator.IteratorFlags flags)

Constructs an iterator for the given widget that uses the specified flags to determine which items are found during iteration. The iterator is set to point to the first top-level item contained in the widget, or the next matching item if the top-level item doesn't match the flags.

See also:

QTreeWidgetItemIterator::IteratorFlag .

QTreeWidgetItemIterator

public QTreeWidgetItemIterator(QTreeWidgetItemIterator it)

Constructs an iterator for the same QTreeWidget as it. The current iterator item is set to point on the current item of it.

Method Detail

next

public final void next(int i)

This function advances the iterator by i items.

previous

public final void previous(int i)

Makes the iterator go backwards by i items.

next

public final void next()

Advances the iterator by one item.

previous

public final void previous()

Makes the iterator go backwards by one item.

current

public final QTreeWidgetItem current()

Returns the current item.

clone

public QTreeWidgetItemIterator clone()

This method is reimplemented for internal reasons

Overrides:

clone in class java.lang.Object