com.trolltech.qt.gui
Class QIntValidator
java.lang.Object
com.trolltech.qt.internal.QSignalEmitterInternal
com.trolltech.qt.QSignalEmitter
com.trolltech.qt.QtJambiObject
com.trolltech.qt.core.QObject
com.trolltech.qt.gui.QValidator
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
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 classes/interfaces inherited from class com.trolltech.qt.QSignalEmitter |
QSignalEmitter.AbstractSignal, 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 |
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.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.internal.QSignalEmitterInternal |
__qt_signalInitialization |
Methods inherited from class java.lang.Object |
clone, getClass, hashCode, notify, notifyAll, wait, wait, wait |
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.
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.