com.trolltech.qt.gui
Class QIntValidator

java.lang.Object
  extended by com.trolltech.qt.internal.QSignalEmitterInternal
      extended by com.trolltech.qt.QSignalEmitter
          extended by com.trolltech.qt.QtJambiObject
              extended by com.trolltech.qt.core.QObject
                  extended by com.trolltech.qt.gui.QValidator
                      extended by com.trolltech.qt.gui.QIntValidator
All Implemented Interfaces:
QtJambiInterface

public class QIntValidator
extends QValidator

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.
    String str;
    int pos = 0;
    QIntValidator v= new QIntValidator(100, 999, this);

    str = "1";
    v.validate(new QValidator.QValidationData(str, pos));     // returns Intermediate
    str = "12";
    v.validate(new QValidator.QValidationData(str, pos));     // returns Intermediate

    str = "123";
    v.validate(new QValidator.QValidationData(str, pos));     // returns Acceptable
    str = "678";
    v.validate(new QValidator.QValidationData(str, pos));     // returns Acceptable

    str = "1234";
    v.validate(new QValidator.QValidationData(str, pos));     // returns Invalid
    str = "-123";
    v.validate(new QValidator.QValidationData(str, pos));     // returns Invalid
    str = "abc";
    v.validate(new QValidator.QValidationData(str, pos));     // returns Invalid
    str = "12cm";
    v.validate(new QValidator.QValidationData(str, pos));     // returns Invalid
Notice that the value 999 returns Intermediate. Values consisting of a number of digits equal to or less than the max value are considered intermediate. This is intended because the digit that prevents a number to be in range is not necessarily the last digit typed. This also means that an intermediate number can have leading zeros.

The 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.

See also:
QDoubleValidator, QRegExpValidator, and Line Edits Example.


Nested Class Summary
 
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.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
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.
 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
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
blockSignals, disconnect, disconnect, signalsBlocked, signalSender, thread
 
Methods inherited from class com.trolltech.qt.internal.QSignalEmitterInternal
__qt_signalInitialization
 
Methods inherited from class java.lang.Object
clone, getClass, hashCode, notify, notifyAll, wait, wait, wait
 
Methods inherited from interface com.trolltech.qt.QtJambiInterface
disableGarbageCollection, nativeId, nativePointer, reenableGarbageCollection, setJavaOwnership
 

Constructor Detail

QIntValidator

public QIntValidator(QObject parent)
Constructs a validator with a parent object that accepts all integers.


QIntValidator

public QIntValidator(int bottom,
                     int top,
                     QObject parent)
Constructs a validator with a parent, that accepts integers from minimum to maximum inclusive.

Method Detail

bottom

public final int bottom()
This property holds the validator's lowest acceptable value. By default, this property's value is derived from the lowest signed integer available (typically -2147483647).

See also:
setRange().


setBottom

public final void setBottom(int arg__1)
This property holds the validator's lowest acceptable value. By default, this property's value is derived from the lowest signed integer available (typically -2147483647).

See also:
setRange().


setTop

public final void setTop(int arg__1)
This property holds the validator's highest acceptable value. By default, this property's value is derived from the highest signed integer available (typically 2147483647).

See also:
setRange().


top

public final int top()
This property holds the validator's highest acceptable value. By default, this property's value is derived from the highest signed integer available (typically 2147483647).

See also:
setRange().


setRange

public void setRange(int bottom,
                     int top)
Sets the range of the validator to only accept integers between bottom and top inclusive.