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java.lang.Objectcom.trolltech.qt.QSignalEmitter
com.trolltech.qt.QtJambiObject
com.trolltech.qt.core.QObject
com.trolltech.qt.gui.QValidator
com.trolltech.qt.gui.QIntValidator
public class QIntValidator
The QIntValidator
class provides a validator that ensures a string contains a valid integer within a specified range. Example of use:
QValidator *validator = new QIntValidator(100, 999, this); QLineEdit *edit = new QLineEdit(this); // the edit lineedit will only accept integers between 100 and 999 edit->setValidator(validator);Below we present some examples of validators. In practice they would normally be associated with a widget as in the example above.
QString str; int pos = 0; QIntValidator v(100, 999, this); str = "1"; v.validate(str, pos); // returns Intermediate str = "12"; v.validate(str, pos); // returns Intermediate str = "123"; v.validate(str, pos); // returns Acceptable str = "678"; v.validate(str, pos); // returns Acceptable str = "1234"; v.validate(str, pos); // returns Invalid str = "-123"; v.validate(str, pos); // returns Invalid str = "abc"; v.validate(str, pos); // returns Invalid str = "12cm"; v.validate(str, pos); // returns InvalidThe minimum and maximum values are set in one call with
setRange()
, or individually with setBottom()
and setTop()
. QIntValidator
uses its locale()
to interpret the number. For example, in Arabic locales, QIntValidator
will accept Arabic digits. In addition, QIntValidator
is always guaranteed to accept a number formatted according to the "C" locale.
QDoubleValidator
, QRegExpValidator
, and Line Edits Example.
Nested Class Summary |
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Nested classes/interfaces inherited from class com.trolltech.qt.gui.QValidator |
---|
QValidator.QValidationData, QValidator.State |
Nested classes/interfaces inherited from class com.trolltech.qt.QSignalEmitter |
---|
QSignalEmitter.Signal0, QSignalEmitter.Signal1, QSignalEmitter.Signal2, QSignalEmitter.Signal3, QSignalEmitter.Signal4, QSignalEmitter.Signal5, QSignalEmitter.Signal6, QSignalEmitter.Signal7, QSignalEmitter.Signal8, QSignalEmitter.Signal9 |
Constructor Summary | |
---|---|
QIntValidator(int bottom,
int top,
QObject parent)
Constructs a validator with a parent, that accepts integers from minimum to maximum inclusive. |
|
QIntValidator(QObject parent)
Constructs a validator with a parent object that accepts all integers. |
Method Summary | |
---|---|
int |
bottom()
This property holds the validator's lowest acceptable value. |
static QIntValidator |
fromNativePointer(QNativePointer nativePointer)
|
void |
setBottom(int arg__1)
This property holds the validator's lowest acceptable value. |
void |
setRange(int bottom,
int top)
Sets the range of the validator to only accept integers between bottom and top inclusive. |
void |
setTop(int arg__1)
This property holds the validator's highest acceptable value. |
int |
top()
This property holds the validator's highest acceptable value. |
Methods inherited from class com.trolltech.qt.gui.QValidator |
---|
fixup, locale, setLocale, validate |
Methods inherited from class com.trolltech.qt.core.QObject |
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childEvent, children, connectSlotsByName, customEvent, disposeLater, dumpObjectInfo, dumpObjectTree, dynamicPropertyNames, event, eventFilter, findChild, findChild, findChild, findChildren, findChildren, findChildren, findChildren, indexOfProperty, installEventFilter, isWidgetType, killTimer, moveToThread, objectName, parent, properties, property, removeEventFilter, setObjectName, setParent, setProperty, startTimer, timerEvent, toString, userProperty |
Methods inherited from class com.trolltech.qt.QtJambiObject |
---|
dispose, disposed, equals, finalize, reassignNativeResources, tr, tr, tr |
Methods inherited from class com.trolltech.qt.QSignalEmitter |
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blockSignals, disconnect, disconnect, signalsBlocked, signalSender, thread |
Methods inherited from class java.lang.Object |
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clone, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Methods inherited from interface com.trolltech.qt.QtJambiInterface |
---|
disableGarbageCollection, nativeId, nativePointer, reenableGarbageCollection, setJavaOwnership |
Constructor Detail |
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public QIntValidator(QObject parent)
public QIntValidator(int bottom, int top, QObject parent)
Method Detail |
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public final int bottom()
setRange()
.
public final void setBottom(int arg__1)
setRange()
.
public final void setTop(int arg__1)
setRange()
.
public final int top()
setRange()
.
public void setRange(int bottom, int top)
public static QIntValidator fromNativePointer(QNativePointer nativePointer)
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