class KDoubleNumInput

An input control for real numbers, consisting of a spinbox and a slider. More...

Definition#include <knuminput.h>
InheritsKNumInput [public ]
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Detailed Description

KDoubleNumInput combines a QSpinBox and optionally a QSlider with a label to make an easy to use control for setting some float parameter. This is especially nice for configuration dialogs, which can have many such combinated controls.

The slider is created only when the user specifies a range for the control using the setRange function with the slider parameter set to "true".

A special feature of KDoubleNumInput, designed specifically for the situation when there are several instances in a column, is that you can specify what portion of the control is taken by the QSpinBox (the remaining portion is used by the slider). This makes it very simple to have all the sliders in a column be the same size.

It uses the KDoubleValidator validator class. KDoubleNumInput enforces the value to be in the given range, but see the class documentation of KDoubleSpinBox for the tricky interrelationship of precision and values. All of what is said there applies here, too.

See also: KIntNumInput, KDoubleSpinBox

 KDoubleNumInput (QWidget *parent=0, const char *name=0)

KDoubleNumInput

Constructs an input control for double values with initial value 0.00.

 KDoubleNumInput (double value, QWidget *parent=0, const char *name=0)

KDoubleNumInput

Constructor

Parameters:
valueinitial value for the control
parentparent QWidget
nameinternal name for this widget

 KDoubleNumInput (double lower, double upper, double value, double step=0.01, int precision=2, QWidget *parent=0, const char *name=0)

KDoubleNumInput

Constructor

Parameters:
lowerlower boundary value
upperupper boundary value
valueinitial value for the control
stepstep size to use for up/down arrow clicks
precisionnumber of digits after the decimal point
parentparent QWidget
nameinternal name for this widget

 ~KDoubleNumInput ()

~KDoubleNumInput

[virtual]

destructor

 KDoubleNumInput (KNumInput* below, double value, QWidget* parent=0, const char* name=0)

KDoubleNumInput

Constructor

puts it below other KNumInput

Parameters:
valueinitial value for the control
parentparent QWidget
nameinternal name for this widget

 KDoubleNumInput (KNumInput* below, double lower, double upper, double value, double step=0.02, int precision=2, QWidget *parent=0, const char *name=0)

KDoubleNumInput

Constructor

puts it below other KNumInput

Parameters:
lowerlower boundary value
upperupper boundary value
valueinitial value for the control
stepstep size to use for up/down arrow clicks
precisionnumber of digits after the decimal point
parentparent QWidget
nameinternal name for this widget

double  value ()

value

[const]

Returns: the current value.

QString  suffix ()

suffix

[const]

Returns: the suffix.

See also: setSuffix()

QString  prefix ()

prefix

[const]

Returns: the prefix.

See also: setPrefix()

int  precision ()

precision

[const]

Returns: the precision.

See also: setPrecision()

QString  specialValueText ()

specialValueText

[const]

Returns: the string displayed for a special value.

See also: setSpecialValueText()

void  setRange (double min, double max, double step=1, bool slider=true)

setRange

Parameters:
minminimum value
maxmaximum value
stepstep size for the QSlider

void  setMinValue (double min)

setMinValue

Sets the minimum value.

double  minValue ()

minValue

[const]

Returns: the minimum value.

void  setMaxValue (double max)

setMaxValue

Sets the maximum value.

double  maxValue ()

maxValue

[const]

Returns: the maximum value.

void  setPrecision (int precision)

setPrecision

Specifies the number of digits to use.

double  referencePoint ()

referencePoint

[const]

Returns: the reference point for relativeValue calculation

double  relativeValue ()

relativeValue

[const]

Returns: the current value in units of referencePoint.

void  setSpecialValueText (const QString& text)

setSpecialValueText

Sets the special value text. If set, the spin box will display this text instead of the numeric value whenever the current value is equal to minVal(). Typically this is used for indicating that the choice has a special (default) meaning.

void  setLabel (const QString & label, int a = AlignLeft | AlignTop)

setLabel

[virtual]

Reimplemented from KNumInput for internal purposes..

QSize  minimumSizeHint ()

minimumSizeHint

[const virtual]

bool  eventFilter (QObject*, QEvent*)

eventFilter

[virtual]

void  setValue (double)

setValue

[slot]

Sets the value of the control.

void  setRelativeValue (double)

setRelativeValue

[slot]

Sets the value in units of referencePoint.

void  setReferencePoint (double ref)

setReferencePoint

[slot]

Sets the reference Point to ref. It ref == 0, emitting of relativeValueChanged is blocked and relativeValue just returns 0.

void  setSuffix (const QString &suffix)

setSuffix

[slot]

Sets the suffix to be displayed to suffix. Use QString::null to disable this feature. Note that the suffix is attached to the value without any spacing. So if you prefer to display a space separator, set suffix to something like " cm".

See also: setSuffix()

void  setPrefix (const QString &prefix)

setPrefix

[slot]

Sets the prefix to be displayed to prefix. Use QString::null to disable this feature. Note that the prefix is attached to the value without any spacing.

See also: setPrefix()

void  valueChanged (double)

valueChanged

[signal]

Emitted every time the value changes (by calling setValue() or by user interaction).

void  relativeValueChanged (double)

relativeValueChanged

[signal]

This is an overloaded member function, provided for convenience. It essentially behaves like the above function.

Contains the value in units of referencePoint.

void  doLayout ()

doLayout

[protected virtual]

Reimplemented from KNumInput for internal purposes..

void  resizeEvent ( QResizeEvent * )

resizeEvent

[protected]

void  resetEditBox ()

resetEditBox

[protected virtual]

KDoubleLine* edit

edit

[protected]

bool m_range

m_range

[protected]

double m_lower

m_lower

[protected]

double m_upper

m_upper

[protected]

double m_step

m_step

[protected]

QSize m_sizeEdit

m_sizeEdit

[protected]

friend class KDoubleLine

KDoubleLine

[protected]

void  virtual_hook ( int id, void* data )

virtual_hook

[protected virtual]

Reimplemented from KNumInput.


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