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java.lang.Objectcom.trolltech.qt.QSignalEmitter
com.trolltech.qt.QtJambiObject
com.trolltech.qt.core.QObject
com.trolltech.qt.gui.QWidget
com.trolltech.qt.gui.QAbstractSpinBox
public class QAbstractSpinBox
The QAbstractSpinBox class provides a spinbox and a line edit to display values.
The class is designed as a common super class for widgets like QSpinBox, QDoubleSpinBox and QDateTimeEdit
Here are the main properties of the class:
QAbstractSpinBox provides a virtual stepBy function that is called whenever the user triggers a step. This function takes an integer value to signify how many steps were taken. E.g. Pressing Qt::Key_Down will trigger a call to stepBy(-1).
QAbstractSpinBox also provide a virtual function stepEnabled to determine whether stepping up/down is allowed at any point. This function returns a bitset of StepEnabled.
Nested Class Summary | |
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static class |
QAbstractSpinBox.ButtonSymbols
This enum type describes the symbols that can be displayed on the buttons in a spin box. |
static class |
QAbstractSpinBox.CorrectionMode
This enum type describes the mode the spinbox will use to correct an Intermediate value if editing finishes. |
static class |
QAbstractSpinBox.StepEnabled
This QFlag class provides flags for the int enum. |
static class |
QAbstractSpinBox.StepEnabledFlag
Press link for info on QAbstractSpinBox.StepEnabledFlag |
Nested classes/interfaces inherited from class com.trolltech.qt.gui.QWidget |
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QWidget.RenderFlag, QWidget.RenderFlags |
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> |
Field Summary | |
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QSignalEmitter.Signal0 |
editingFinished
This signal is emitted editing is finished. |
Fields inherited from class com.trolltech.qt.gui.QWidget |
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customContextMenuRequested |
Constructor Summary | |
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QAbstractSpinBox()
Equivalent to QAbstractSpinBox(0). |
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QAbstractSpinBox(QWidget parent)
Constructs an abstract spinbox with the given parent with default wrapping, and alignment properties. |
Method Summary | |
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Qt.Alignment |
alignment()
Returns the alignment of the spin box. |
QAbstractSpinBox.ButtonSymbols |
buttonSymbols()
Returns the current button symbol mode. |
protected void |
changeEvent(QEvent event)
This function is reimplemented for internal reasons. |
void |
clear()
Clears the lineedit of all text but prefix and suffix. |
protected void |
closeEvent(QCloseEvent event)
This function is reimplemented for internal reasons. |
protected void |
contextMenuEvent(QContextMenuEvent event)
This function is reimplemented for internal reasons. |
QAbstractSpinBox.CorrectionMode |
correctionMode()
Returns the mode to correct an Intermediate value if editing finishes. |
boolean |
event(QEvent event)
This function is reimplemented for internal reasons. |
java.lang.String |
fixup(java.lang.String input)
This virtual function is called by the QAbstractSpinBox if the input is not validated to QValidator::Acceptable when Return is pressed or interpretText is called. |
protected void |
focusInEvent(QFocusEvent event)
This function is reimplemented for internal reasons. |
protected void |
focusOutEvent(QFocusEvent event)
This function is reimplemented for internal reasons. |
static QAbstractSpinBox |
fromNativePointer(QNativePointer nativePointer)
This function returns the QAbstractSpinBox instance pointed to by nativePointer |
boolean |
hasAcceptableInput()
Returns whether the input satisfies the current validation. |
boolean |
hasFrame()
Returns whether the spin box draws itself with a frame. |
protected void |
hideEvent(QHideEvent event)
This function is reimplemented for internal reasons. |
protected void |
initStyleOption(QStyleOptionSpinBox option)
Initialize option with the values from this QSpinBox. |
void |
interpretText()
This function interprets the text of the spin box. |
boolean |
isAccelerated()
Returns whether the spin box will accelerate the frequency of the steps when pressing the step Up/Down buttons.. |
boolean |
isReadOnly()
Returns whether the spin box is read only.. |
boolean |
keyboardTracking()
Returns whether keyboard tracking is enabled for the spinbox.. |
protected void |
keyPressEvent(QKeyEvent event)
This function is reimplemented for internal reasons. |
protected void |
keyReleaseEvent(QKeyEvent event)
This function is reimplemented for internal reasons. |
protected QLineEdit |
lineEdit()
This function returns a pointer to the line edit of the spin box. |
QSize |
minimumSizeHint()
This function is reimplemented for internal reasons. |
protected void |
mouseMoveEvent(QMouseEvent event)
This function is reimplemented for internal reasons. |
protected void |
mousePressEvent(QMouseEvent event)
This function is reimplemented for internal reasons. |
protected void |
mouseReleaseEvent(QMouseEvent event)
This function is reimplemented for internal reasons. |
protected void |
paintEvent(QPaintEvent event)
This function is reimplemented for internal reasons. |
protected void |
resizeEvent(QResizeEvent event)
This function is reimplemented for internal reasons. |
void |
selectAll()
Selects all the text in the spinbox except the prefix and suffix. |
void |
setAccelerated(boolean on)
Sets whether the spin box will accelerate the frequency of the steps when pressing the step Up/Down buttons. |
void |
setAlignment(Qt.Alignment flag)
Sets the alignment of the spin box to flag. |
void |
setAlignment(Qt.AlignmentFlag... flag)
Sets the alignment of the spin box to flag. |
void |
setButtonSymbols(QAbstractSpinBox.ButtonSymbols bs)
Sets the current button symbol mode to bs. |
void |
setCorrectionMode(QAbstractSpinBox.CorrectionMode cm)
Sets the mode to correct an Intermediate value if editing finishes to cm. |
void |
setFrame(boolean arg__1)
Sets whether the spin box draws itself with a frame to arg__1. |
void |
setKeyboardTracking(boolean kt)
Sets whether keyboard tracking is enabled for the spinbox. |
protected void |
setLineEdit(QLineEdit edit)
Sets the line edit of the spinbox to be edit instead of the current line edit widget. |
void |
setReadOnly(boolean r)
Sets whether the spin box is read only. |
void |
setSpecialValueText(java.lang.String txt)
Sets the special-value text to txt. |
void |
setWrapping(boolean w)
Sets whether the spin box is circular. |
protected void |
showEvent(QShowEvent event)
This function is reimplemented for internal reasons. |
QSize |
sizeHint()
This function is reimplemented for internal reasons. |
java.lang.String |
specialValueText()
Returns the special-value text. |
void |
stepBy(int steps)
Virtual function that is called whenever the user triggers a step. |
void |
stepDown()
Steps down by one linestep Calling this slot is analogous to calling stepBy(-1); |
protected QAbstractSpinBox.StepEnabled |
stepEnabled()
Virtual function that determines whether stepping up and down is legal at any given time. |
void |
stepUp()
Steps up by one linestep Calling this slot is analogous to calling stepBy(1); |
java.lang.String |
text()
Returns the spin box's text, including any prefix and suffix. |
protected void |
timerEvent(QTimerEvent event)
This function is reimplemented for internal reasons. |
QValidator.State |
validate(QValidator.QValidationData input)
Equivalent to validate(input, ). |
protected void |
wheelEvent(QWheelEvent event)
This function is reimplemented for internal reasons. |
boolean |
wrapping()
Returns whether the spin box is circular.. |
Methods inherited from class com.trolltech.qt.core.QObject |
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blockSignals, childEvent, children, connectSlotsByName, customEvent, disposeLater, dumpObjectInfo, dumpObjectTree, dynamicPropertyNames, eventFilter, findChild, findChild, findChild, findChildren, findChildren, findChildren, findChildren, installEventFilter, isWidgetType, killTimer, moveToThread, objectName, parent, property, removeEventFilter, setObjectName, setParent, setProperty, signalsBlocked, startTimer, thread |
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 |
Field Detail |
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public final QSignalEmitter.Signal0 editingFinished
This signal is emitted editing is finished. This happens when the spinbox loses focus and when enter is pressed.
Constructor Detail |
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public QAbstractSpinBox()
Equivalent to QAbstractSpinBox(0).
public QAbstractSpinBox(QWidget parent)
Constructs an abstract spinbox with the given parent with default wrapping, and alignment properties.
Method Detail |
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public final Qt.Alignment alignment()
Returns the alignment of the spin box.
Possible Values are Qt::AlignLeft, Qt::AlignRight, and Qt::AlignHCenter.
By default, the alignment is Qt::AlignLeft
Attempting to set the alignment to an illegal flag combination does nothing.
Qt::Alignment
public final QAbstractSpinBox.ButtonSymbols buttonSymbols()
Returns the current button symbol mode.
The possible values can be either UpDownArrows or PlusMinus. The default is UpDownArrows.
Note that some styles might render PlusMinus and UpDownArrows identically.
public final QAbstractSpinBox.CorrectionMode correctionMode()
Returns the mode to correct an Intermediate value if editing finishes.
The default mode is QAbstractSpinBox::CorrectToPreviousValue.
public final boolean hasAcceptableInput()
Returns whether the input satisfies the current validation.
public final boolean hasFrame()
Returns whether the spin box draws itself with a frame.
If enabled (the default) the spin box draws itself inside a frame, otherwise the spin box draws itself without any frame.
public final void interpretText()
This function interprets the text of the spin box. If the value has changed since last interpretation it will emit signals.
public final boolean isAccelerated()
Returns whether the spin box will accelerate the frequency of the steps when pressing the step Up/Down buttons..
If enabled the spin box will increase/decrease the value faster the longer you hold the button down.
public final boolean isReadOnly()
Returns whether the spin box is read only..
In read-only mode, the user can still copy the text to the clipboard, or drag and drop the text; but cannot edit it.
The QLineEdit in the QAbstractSpinBox does not show a cursor in read-only mode.
public final boolean keyboardTracking()
Returns whether keyboard tracking is enabled for the spinbox..
If keyboard tracking is enabled (the default), the spinbox emits the valueChanged() signal while the new value is being entered from the keyboard.
E.g. when the user enters the value 600 by typing 6, 0, and 0, the spinbox emits 3 signals with the values 6, 60, and 600 respectively.
If keyboard tracking is disabled, the spinbox doesn't emit the valueChanged() signal while typing. It emits the signal later, when the return key is pressed, when keyboard focus is lost, or when other spinbox functionality is used, e.g. pressing an arrow key.
protected final QLineEdit lineEdit()
This function returns a pointer to the line edit of the spin box.
public final void selectAll()
Selects all the text in the spinbox except the prefix and suffix.
public final void setAccelerated(boolean on)
Sets whether the spin box will accelerate the frequency of the steps when pressing the step Up/Down buttons. to on.
If enabled the spin box will increase/decrease the value faster the longer you hold the button down.
public final void setAlignment(Qt.AlignmentFlag... flag)
Sets the alignment of the spin box to flag.
Possible Values are Qt::AlignLeft, Qt::AlignRight, and Qt::AlignHCenter.
By default, the alignment is Qt::AlignLeft
Attempting to set the alignment to an illegal flag combination does nothing.
Qt::Alignment
public final void setAlignment(Qt.Alignment flag)
Sets the alignment of the spin box to flag.
Possible Values are Qt::AlignLeft, Qt::AlignRight, and Qt::AlignHCenter.
By default, the alignment is Qt::AlignLeft
Attempting to set the alignment to an illegal flag combination does nothing.
Qt::Alignment
public final void setButtonSymbols(QAbstractSpinBox.ButtonSymbols bs)
Sets the current button symbol mode to bs.
The possible values can be either UpDownArrows or PlusMinus. The default is UpDownArrows.
Note that some styles might render PlusMinus and UpDownArrows identically.
public final void setCorrectionMode(QAbstractSpinBox.CorrectionMode cm)
Sets the mode to correct an Intermediate value if editing finishes to cm.
The default mode is QAbstractSpinBox::CorrectToPreviousValue.
public final void setFrame(boolean arg__1)
Sets whether the spin box draws itself with a frame to arg__1.
If enabled (the default) the spin box draws itself inside a frame, otherwise the spin box draws itself without any frame.
public final void setKeyboardTracking(boolean kt)
Sets whether keyboard tracking is enabled for the spinbox. to kt.
If keyboard tracking is enabled (the default), the spinbox emits the valueChanged() signal while the new value is being entered from the keyboard.
E.g. when the user enters the value 600 by typing 6, 0, and 0, the spinbox emits 3 signals with the values 6, 60, and 600 respectively.
If keyboard tracking is disabled, the spinbox doesn't emit the valueChanged() signal while typing. It emits the signal later, when the return key is pressed, when keyboard focus is lost, or when other spinbox functionality is used, e.g. pressing an arrow key.
protected final void setLineEdit(QLineEdit edit)
Sets the line edit of the spinbox to be edit instead of the current line edit widget. edit can not be 0.
QAbstractSpinBox takes ownership of the new lineEdit
If QLineEdit::validator() for the edit returns 0, the internal validator of the spinbox will be set on the line edit.
public final void setReadOnly(boolean r)
Sets whether the spin box is read only. to r.
In read-only mode, the user can still copy the text to the clipboard, or drag and drop the text; but cannot edit it.
The QLineEdit in the QAbstractSpinBox does not show a cursor in read-only mode.
public final void setSpecialValueText(java.lang.String txt)
Sets the special-value text to txt.
If set, the spin box will display this text instead of a numeric value whenever the current value is equal to minimum(). Typical use is to indicate that this choice has a special (default) meaning.
For example, if your spin box allows the user to choose a scale factor (or zoom level) for displaying an image, and your application is able to automatically choose one that will enable the image to fit completely within the display window, you can set up the spin box like this:
QSpinBox *zoomSpinBox = new QSpinBox; zoomSpinBox->setRange(0, 1000); zoomSpinBox->setSingleStep(10); zoomSpinBox->setSuffix("%"); zoomSpinBox->setSpecialValueText(tr("Automatic")); zoomSpinBox->setValue(100);
The user will then be able to choose a scale from 1% to 1000% or select "Auto" to leave it up to the application to choose. Your code must then interpret the spin box value of 0 as a request from the user to scale the image to fit inside the window.
All values are displayed with the prefix and suffix (if set), except for the special value, which only shows the special value text. This special text is passed in the QSpinBox::valueChanged() signal that passes a QString.
To turn off the special-value text display, call this function with an empty string. The default is no special-value text, i.e. the numeric value is shown as usual.
If no special-value text is set, specialValueText returns an empty string.
public final void setWrapping(boolean w)
Sets whether the spin box is circular. to w.
If wrapping is true stepping up from maximum() value will take you to the minimum() value and vica versa. Wrapping only make sense if you have minimum() and maximum() values set.
QSpinBox *spinBox = new QSpinBox(this);
spinBox->setRange(0, 100);
spinBox->setWrapping(true);
spinBox->setValue(100);
spinBox->stepBy(1);
// value is 0
public final java.lang.String specialValueText()
Returns the special-value text.
If set, the spin box will display this text instead of a numeric value whenever the current value is equal to minimum(). Typical use is to indicate that this choice has a special (default) meaning.
For example, if your spin box allows the user to choose a scale factor (or zoom level) for displaying an image, and your application is able to automatically choose one that will enable the image to fit completely within the display window, you can set up the spin box like this:
QSpinBox *zoomSpinBox = new QSpinBox; zoomSpinBox->setRange(0, 1000); zoomSpinBox->setSingleStep(10); zoomSpinBox->setSuffix("%"); zoomSpinBox->setSpecialValueText(tr("Automatic")); zoomSpinBox->setValue(100);
The user will then be able to choose a scale from 1% to 1000% or select "Auto" to leave it up to the application to choose. Your code must then interpret the spin box value of 0 as a request from the user to scale the image to fit inside the window.
All values are displayed with the prefix and suffix (if set), except for the special value, which only shows the special value text. This special text is passed in the QSpinBox::valueChanged() signal that passes a QString.
To turn off the special-value text display, call this function with an empty string. The default is no special-value text, i.e. the numeric value is shown as usual.
If no special-value text is set, specialValueText returns an empty string.
public final void stepDown()
Steps down by one linestep Calling this slot is analogous to calling stepBy(-1);
public final void stepUp()
Steps up by one linestep Calling this slot is analogous to calling stepBy(1);
public final java.lang.String text()
Returns the spin box's text, including any prefix and suffix.
There is no default text.
public final boolean wrapping()
Returns whether the spin box is circular..
If wrapping is true stepping up from maximum() value will take you to the minimum() value and vica versa. Wrapping only make sense if you have minimum() and maximum() values set.
QSpinBox *spinBox = new QSpinBox(this);
spinBox->setRange(0, 100);
spinBox->setWrapping(true);
spinBox->setValue(100);
spinBox->stepBy(1);
// value is 0
protected void changeEvent(QEvent event)
This function is reimplemented for internal reasons.
changeEvent
in class QWidget
public void clear()
Clears the lineedit of all text but prefix and suffix.
protected void closeEvent(QCloseEvent event)
This function is reimplemented for internal reasons.
closeEvent
in class QWidget
protected void contextMenuEvent(QContextMenuEvent event)
This function is reimplemented for internal reasons.
contextMenuEvent
in class QWidget
public boolean event(QEvent event)
This function is reimplemented for internal reasons.
event
in class QWidget
public java.lang.String fixup(java.lang.String input)
This virtual function is called by the QAbstractSpinBox if the input is not validated to QValidator::Acceptable when Return is pressed or interpretText is called. It will try to change the text so it is valid. Reimplemented in the various subclasses.
protected void focusInEvent(QFocusEvent event)
This function is reimplemented for internal reasons.
focusInEvent
in class QWidget
protected void focusOutEvent(QFocusEvent event)
This function is reimplemented for internal reasons.
focusOutEvent
in class QWidget
protected void hideEvent(QHideEvent event)
This function is reimplemented for internal reasons.
hideEvent
in class QWidget
visible
,
event,
QHideEventprotected void keyPressEvent(QKeyEvent event)
This function is reimplemented for internal reasons.
keyPressEvent
in class QWidget
protected void keyReleaseEvent(QKeyEvent event)
This function is reimplemented for internal reasons.
keyReleaseEvent
in class QWidget
public QSize minimumSizeHint()
This function is reimplemented for internal reasons.
minimumSizeHint
in class QWidget
protected void mouseMoveEvent(QMouseEvent event)
This function is reimplemented for internal reasons.
mouseMoveEvent
in class QWidget
Example
protected void mousePressEvent(QMouseEvent event)
This function is reimplemented for internal reasons.
mousePressEvent
in class QWidget
Example
protected void mouseReleaseEvent(QMouseEvent event)
This function is reimplemented for internal reasons.
mouseReleaseEvent
in class QWidget
Example
protected void paintEvent(QPaintEvent event)
This function is reimplemented for internal reasons.
paintEvent
in class QWidget
protected void resizeEvent(QResizeEvent event)
This function is reimplemented for internal reasons.
resizeEvent
in class QWidget
Example
protected void showEvent(QShowEvent event)
This function is reimplemented for internal reasons.
showEvent
in class QWidget
visible
,
event,
QShowEventpublic QSize sizeHint()
This function is reimplemented for internal reasons.
sizeHint
in class QWidget
public void stepBy(int steps)
Virtual function that is called whenever the user triggers a step. The steps parameter indicates how many steps were taken, e.g. Pressing Qt::Key_Down will trigger a call to stepBy(-1), whereas pressing Qt::Key_Prior will trigger a call to stepBy(10).
If you subclass QAbstractSpinBox you must reimplement this function. Note that this function is called even if the resulting value will be outside the bounds of minimum and maximum. It's this function's job to handle these situations.
protected QAbstractSpinBox.StepEnabled stepEnabled()
Virtual function that determines whether stepping up and down is legal at any given time.
The up arrow will be painted as disabled unless (stepEnabled & StepUpEnabled) != 0.
The default implementation will return (StepUpEnabled| StepDownEnabled) if wrapping is turned on. Else it will return StepDownEnabled if value is > minimum() or'ed with StepUpEnabled if value < maximum().
If you subclass QAbstractSpinBox you will need to reimplement this function.
protected void timerEvent(QTimerEvent event)
This function is reimplemented for internal reasons.
timerEvent
in class QObject
public QValidator.State validate(QValidator.QValidationData input)
Equivalent to validate(input, ).
protected void wheelEvent(QWheelEvent event)
This function is reimplemented for internal reasons.
wheelEvent
in class QWidget
public static QAbstractSpinBox fromNativePointer(QNativePointer nativePointer)
nativePointer
- the QNativePointer of which object should be returned.protected void initStyleOption(QStyleOptionSpinBox option)
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SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |