com.trolltech.qt.gui
Class QTreeWidgetItemIterator

java.lang.Object
  extended by com.trolltech.qt.QSignalEmitter
      extended by com.trolltech.qt.QtJambiObject
          extended by com.trolltech.qt.gui.QTreeWidgetItemIterator
All Implemented Interfaces:
QtJambiInterface

public class QTreeWidgetItemIterator
extends QtJambiObject

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(treeWidget);
        while (*it) {
            if ((*it)->text(0) == itemText)
                treeWidget->setItemSelected(*it, true);
            ++it;
        }

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, 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
          This QFlag class provides flags for the int enum.
 
Nested classes/interfaces inherited from class com.trolltech.qt.QSignalEmitter
QSignalEmitter.Signal0, QSignalEmitter.Signal1<A>, QSignalEmitter.Signal2<A,B>, QSignalEmitter.Signal3<A,B,C>, QSignalEmitter.Signal4<A,B,C,D>, QSignalEmitter.Signal5<A,B,C,D,E>, QSignalEmitter.Signal6<A,B,C,D,E,F>, QSignalEmitter.Signal7<A,B,C,D,E,F,G>, QSignalEmitter.Signal8<A,B,C,D,E,F,G,H>, QSignalEmitter.Signal9<A,B,C,D,E,F,G,H,I>
 
Constructor Summary
QTreeWidgetItemIterator(QTreeWidget widget)
          Equivalent to QTreeWidgetItemIterator(widget, All).
QTreeWidgetItemIterator(QTreeWidgetItem item)
          Equivalent to QTreeWidgetItemIterator(item, All).
QTreeWidgetItemIterator(QTreeWidgetItemIterator it)
          Constructs an iterator for the same QTreeWidget as it.
QTreeWidgetItemIterator(QTreeWidgetItem item, QTreeWidgetItemIterator.IteratorFlags flags)
          Constructs an iterator for the given item that uses the specified flags to determine which items are found during iteration.
QTreeWidgetItemIterator(QTreeWidget widget, QTreeWidgetItemIterator.IteratorFlags flags)
          Constructs an iterator for the given widget that uses the specified flags to determine which items are found during iteration.
 
Method Summary
 QTreeWidgetItem current()
          Returns the current item.
static QTreeWidgetItemIterator fromNativePointer(QNativePointer nativePointer)
          This function returns the QTreeWidgetItemIterator instance pointed to by nativePointer
static QNativePointer nativePointerArray(QTreeWidgetItemIterator[] array)
          This function returns a QNativePointer that is pointing to the specified QTreeWidgetItemIterator array.
 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, finalize, reassignNativeResources, tr, tr, tr
 
Methods inherited from class com.trolltech.qt.QSignalEmitter
blockSignals, disconnect, disconnect, signalsBlocked, signalSender, thread
 
Methods inherited from class java.lang.Object
clone, equals, 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(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.


QTreeWidgetItemIterator

public QTreeWidgetItemIterator(QTreeWidget widget)

Equivalent to QTreeWidgetItemIterator(widget, All).


QTreeWidgetItemIterator

public QTreeWidgetItemIterator(QTreeWidget widget,
                               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(QTreeWidgetItem item)

Equivalent to QTreeWidgetItemIterator(item, All).


QTreeWidgetItemIterator

public QTreeWidgetItemIterator(QTreeWidgetItem item,
                               QTreeWidgetItemIterator.IteratorFlags flags)

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
Method Detail

fromNativePointer

public static QTreeWidgetItemIterator fromNativePointer(QNativePointer nativePointer)
This function returns the QTreeWidgetItemIterator instance pointed to by nativePointer

Parameters:
nativePointer - the QNativePointer of which object should be returned.

nativePointerArray

public static QNativePointer nativePointerArray(QTreeWidgetItemIterator[] array)
This function returns a QNativePointer that is pointing to the specified QTreeWidgetItemIterator array.

Parameters:
array - the array that the returned pointer will point to.
Returns:
a QNativePointer that is pointing to the specified array.

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.