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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.QDoubleValidator
public class QDoubleValidator
The QDoubleValidator class provides range checking of floating-point numbers.
QDoubleValidator provides an upper bound, a lower bound, and a limit on the number of digits after the decimal point. It does not provide a fixup function.
You can set the acceptable range in one call with setRange, or with setBottom and setTop. Set the number of decimal places with setDecimals. The validate function returns the validation state.
QDoubleValidator uses its locale to interpret the number. For example, in the German locale, "1,234" will be accepted as the fractional number 1.234. In Arabic locales, QDoubleValidator will accept Arabic digits.
In addition, QDoubleValidator is always guaranteed to accept a number formatted according to the "C" locale. QDoubleValidator will not accept numbers with thousand-seperators.
Nested Class Summary | |
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static class |
QDoubleValidator.Notation
This enum defines the allowed notations for entering a double. |
Nested classes/interfaces inherited from class com.trolltech.qt.gui.QValidator |
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QValidator.QValidationData, QValidator.State |
Nested classes/interfaces inherited from class com.trolltech.qt.QSignalEmitter |
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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 | |
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QDoubleValidator(double bottom,
double top,
int decimals,
QObject parent)
Constructs a validator object with a parent object. |
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QDoubleValidator(QObject parent)
Constructs a validator object with a parent object that accepts any double. |
Method Summary | |
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double |
bottom()
Returns the validator's minimum acceptable value. |
int |
decimals()
Returns the validator's maximum number of digits after the decimal point. |
static QDoubleValidator |
fromNativePointer(QNativePointer nativePointer)
This function returns the QDoubleValidator instance pointed to by nativePointer |
QDoubleValidator.Notation |
notation()
Returns the notation of how a string can describe a number. |
void |
setBottom(double arg__1)
Sets the validator's minimum acceptable value to arg__1. |
void |
setDecimals(int arg__1)
Sets the validator's maximum number of digits after the decimal point to arg__1. |
void |
setNotation(QDoubleValidator.Notation arg__1)
Sets the notation of how a string can describe a number to arg__1. |
void |
setRange(double bottom,
double top)
Equivalent to setRange(bottom, top, 0). |
void |
setRange(double bottom,
double top,
int decimals)
Sets the validator to accept doubles from bottom to top inclusive, with at most decimals digits after the decimal point. |
void |
setTop(double arg__1)
Sets the validator's maximum acceptable value to arg__1. |
double |
top()
Returns the validator's maximum acceptable value. |
QValidator.State |
validate(QValidator.QValidationData arg__1)
Equivalent to validate(arg__1, ). |
Methods inherited from class com.trolltech.qt.gui.QValidator |
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fixup, locale, setLocale |
Methods inherited from class com.trolltech.qt.core.QObject |
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blockSignals, childEvent, children, connectSlotsByName, customEvent, disposeLater, dumpObjectInfo, dumpObjectTree, dynamicPropertyNames, event, eventFilter, findChild, findChild, findChild, findChildren, findChildren, findChildren, findChildren, installEventFilter, isWidgetType, killTimer, moveToThread, objectName, parent, property, removeEventFilter, setObjectName, setParent, setProperty, signalsBlocked, startTimer, thread, timerEvent |
Methods inherited from class com.trolltech.qt.QtJambiObject |
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dispose, disposed, finalize, reassignNativeResources, tr, tr, tr |
Methods inherited from class com.trolltech.qt.QSignalEmitter |
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disconnect, disconnect, signalSender |
Methods inherited from class java.lang.Object |
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clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Methods inherited from interface com.trolltech.qt.QtJambiInterface |
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disableGarbageCollection, nativeId, nativePointer, reenableGarbageCollection, setJavaOwnership |
Constructor Detail |
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public QDoubleValidator(QObject parent)
Constructs a validator object with a parent object that accepts any double.
public QDoubleValidator(double bottom, double top, int decimals, QObject parent)
Constructs a validator object with a parent object. This validator will accept doubles from bottom to top inclusive, with up to decimals digits after the decimal point.
Method Detail |
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public final double bottom()
Returns the validator's minimum acceptable value.
public final int decimals()
Returns the validator's maximum number of digits after the decimal point.
public final QDoubleValidator.Notation notation()
Returns the notation of how a string can describe a number.
public final void setBottom(double arg__1)
Sets the validator's minimum acceptable value to arg__1.
public final void setDecimals(int arg__1)
Sets the validator's maximum number of digits after the decimal point to arg__1.
public final void setNotation(QDoubleValidator.Notation arg__1)
Sets the notation of how a string can describe a number to arg__1.
public final void setTop(double arg__1)
Sets the validator's maximum acceptable value to arg__1.
public final double top()
Returns the validator's maximum acceptable value.
public final void setRange(double bottom, double top)
Equivalent to setRange(bottom, top, 0).
public void setRange(double bottom, double top, int decimals)
Sets the validator to accept doubles from bottom to top inclusive, with at most decimals digits after the decimal point.
public QValidator.State validate(QValidator.QValidationData arg__1)
Equivalent to validate(arg__1, ).
validate
in class QValidator
public static QDoubleValidator fromNativePointer(QNativePointer nativePointer)
nativePointer
- the QNativePointer of which object should be returned.
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