wx.lib.agw.floatspin.FloatSpin¶

FloatSpin implements a floating point SpinCtrl. It is built using a custom wx.Control, composed by a TextCtrl and a SpinButton. In order to correctly handle floating points numbers without rounding errors or non-exact floating point representations, FloatSpin uses the great FixedPoint class from Tim Peters.

Class Hierarchy¶

Inheritance diagram for class FloatSpin:

Control Appearance¶

wxMSW

wxMAC

wxGTK

Known Superclasses¶

wx.Control

Methods Summary¶

`__init__`	Default class constructor.
`ClampValue`	Clamps var between _min and _max depending if the range has
`DoGetBestSize`	Gets the size which best suits the window: for a control, it would be the
`DoSendEvent`	Send the event to the parent.
`GetDefaultValue`	Returns the `FloatSpin` default value.
`GetDigits`	Returns the number of digits shown.
`GetFont`	Returns the underlying `TextCtrl` font.
`GetFormat`	Returns the string format in use.
`GetIncrement`	Returns the increment for every `EVT_FLOATSPIN` event.
`GetMax`	Returns the maximum value for `FloatSpin`. It can be a
`GetMin`	Returns the minimum value for `FloatSpin`. It can be a
`GetSnapToTicks`	Returns whether the snap to ticks option is active or not.
`GetTextCtrl`	Returns the underlying `TextCtrl`.
`GetValue`	Returns the `FloatSpin` value.
`HasRange`	Returns whether `FloatSpin` range has been set or not.
`InRange`	Returns whether a value is inside `FloatSpin` range.
`IsDefaultValue`	Returns whether the current value is the default value or not.
`IsFinite`	Tries to determine if a value is finite or infinite/NaN.
`OnChar`	Handles the `wx.EVT_CHAR` event for `FloatSpin`.
`OnDestroy`	Handles the `wx.EVT_WINDOW_DESTROY` event for `FloatSpin`.
`OnFocus`	Handles the `wx.EVT_SET_FOCUS` event for `FloatSpin`.
`OnKillFocus`	Handles the `wx.EVT_KILL_FOCUS` event for `FloatSpin`.
`OnMouseWheel`	Handles the `wx.EVT_MOUSEWHEEL` event for `FloatSpin`.
`OnSize`	Handles the `wx.EVT_SIZE` event for `FloatSpin`.
`OnSpinDown`	Handles the `wx.EVT_SPIN_DOWN` event for `FloatSpin`.
`OnSpinMouseDown`	Handles the `wx.EVT_LEFT_DOWN` event for `FloatSpin`.
`OnSpinUp`	Handles the `wx.EVT_SPIN_UP` event for `FloatSpin`.
`OnTextEnter`	Handles the `wx.EVT_TEXT_ENTER` event for `FloatSpin`.
`ReplaceDoubleZero`	Replaces the (somewhat) python ugly +e000 with +e00.
`SetDefaultValue`	Sets the `FloatSpin` default value.
`SetDigits`	Sets the number of digits to show.
`SetFont`	Sets the underlying `TextCtrl` font.
`SetFormat`	Set the string format to use.
`SetIncrement`	Sets the increment for every `EVT_FLOATSPIN` event.
`SetRange`	Sets the allowed range.
`SetRangeDontClampValue`	Sets the allowed range.
`SetSnapToTicks`	Force the value to always be divisible by the increment. Initially `False`.
`SetToDefaultValue`	Sets `FloatSpin` value to its default value.
`SetValue`	Sets the `FloatSpin` value.
`SyncSpinToText`	Synchronize the underlying `TextCtrl` with `SpinButton`.

Class API¶

class FloatSpin(wx.Control)¶

FloatSpin implements a floating point SpinCtrl. It is built using a custom wx.Control, composed by a TextCtrl and a SpinButton. In order to correctly handle floating points numbers without rounding errors or non-exact floating point representations, FloatSpin uses the great FixedPoint class from Tim Peters.

Methods¶

__init__(self, parent, id=wx.ID_ANY, pos=wx.DefaultPosition, size=(95, -1), style=0, value=0.0, min_val=None, max_val=None, increment=1.0, digits=-1, agwStyle=FS_LEFT, name="FloatSpin")¶

Default class constructor.

Parameters:

parent – the FloatSpin parent;
id – an identifier for the control: a value of -1 is taken to mean a default;
pos – the control position. A value of (-1, -1) indicates a default position, chosen by either the windowing system or wxPython, depending on platform;
size – the control size. A value of (-1, -1) indicates a default size, chosen by either the windowing system or wxPython, depending on platform;
style – the window style;
value – is the current value for FloatSpin;
min_val – the minimum value, ignored if None;
max_val – the maximum value, ignored if None;
increment – the increment for every FloatSpinEvent event;
digits – number of representative digits for your floating point numbers;

agwStyle – one of the following bits:

Window Styles	Hex Value	Description
`FS_READONLY`	0x1	Sets `FloatSpin` as read-only control.
`FS_LEFT`	0x2	Horizontally align the underlying `TextCtrl` on the left.
`FS_CENTRE`	0x4	Horizontally align the underlying `TextCtrl` on center.
`FS_RIGHT`	0x8	Horizontally align the underlying `TextCtrl` on the right.

name – the window name.

ClampValue(self, var)¶

Clamps var between _min and _max depending if the range has been specified.

Parameters:	var – the value to be clamped.
Returns:	A clamped copy of var.

DoGetBestSize(self)¶: Gets the size which best suits the window: for a control, it would be the minimal size which doesn’t truncate the control, for a panel - the same size as it would have after a call to Fit().

Note

Overridden from wx.Control.

DoSendEvent(self)¶: Send the event to the parent.

GetDefaultValue(self)¶: Returns the FloatSpin default value.

GetDigits(self)¶: Returns the number of digits shown.

GetFont(self)¶: Returns the underlying TextCtrl font.

GetFormat(self)¶: Returns the string format in use.

See also

SetFormat for a list of valid string formats.

GetIncrement(self)¶: Returns the increment for every EVT_FLOATSPIN event.

GetMax(self)¶: Returns the maximum value for FloatSpin. It can be a number or None if no minimum is present.

GetMin(self)¶: Returns the minimum value for FloatSpin. It can be a number or None if no minimum is present.

GetSnapToTicks(self)¶: Returns whether the snap to ticks option is active or not.

GetTextCtrl(self)¶: Returns the underlying TextCtrl.

GetValue(self)¶: Returns the FloatSpin value.

HasRange(self)¶: Returns whether FloatSpin range has been set or not.

InRange(self, value)¶

Returns whether a value is inside FloatSpin range.

Parameters:	value – the value to test.

IsDefaultValue(self)¶: Returns whether the current value is the default value or not.

IsFinite(self, value)¶

Tries to determine if a value is finite or infinite/NaN.

Parameters:	value – the value to test.

OnChar(self, event)¶

Handles the wx.EVT_CHAR event for FloatSpin.

Parameters:	event – a `KeyEvent` event to be processed.

Note

This method works on the underlying TextCtrl.

OnDestroy(self, event)¶

Handles the wx.EVT_WINDOW_DESTROY event for FloatSpin.

Parameters:	event – a `wx.WindowDestroyEvent` event to be processed.

Note

This method tries to correctly handle the control destruction under MSW.

OnFocus(self, event)¶

Handles the wx.EVT_SET_FOCUS event for FloatSpin.

Parameters:	event – a `FocusEvent` event to be processed.

OnKillFocus(self, event)¶

Handles the wx.EVT_KILL_FOCUS event for FloatSpin.

Parameters:	event – a `FocusEvent` event to be processed.

OnMouseWheel(self, event)¶

Handles the wx.EVT_MOUSEWHEEL event for FloatSpin.

Parameters:	event – a `MouseEvent` event to be processed.

OnSize(self, event)¶

Handles the wx.EVT_SIZE event for FloatSpin.

Parameters:	event – a `wx.SizeEvent` event to be processed.

Note

This method resizes the text control and reposition the spin button when resized.

OnSpinDown(self, event)¶

Handles the wx.EVT_SPIN_DOWN event for FloatSpin.

Parameters:	event – a `SpinEvent` event to be processed.

OnSpinMouseDown(self, event)¶

Handles the wx.EVT_LEFT_DOWN event for FloatSpin.

Parameters:	event – a `MouseEvent` event to be processed.

Note

This method works on the underlying SpinButton.

OnSpinUp(self, event)¶

Handles the wx.EVT_SPIN_UP event for FloatSpin.

Parameters:	event – a `SpinEvent` event to be processed.

OnTextEnter(self, event)¶

Handles the wx.EVT_TEXT_ENTER event for FloatSpin.

Parameters:	event – a `KeyEvent` event to be processed.

Note

This method works on the underlying TextCtrl.

ReplaceDoubleZero(self, strs)¶

Replaces the (somewhat) python ugly +e000 with +e00.

Parameters:	strs – a string (possibly) containing a +e00 substring.

SetDefaultValue(self, defaultvalue)¶

Sets the FloatSpin default value.

Parameters:	defaultvalue – a floating point value representing the new default value for `FloatSpin`.

SetDigits(self, digits=-1)¶

Sets the number of digits to show.

Parameters:	digits – the number of digits to show. If digits < 0, `FloatSpin` tries to calculate the best number of digits based on input values passed in the constructor.

SetFont(self, font=None)¶

Sets the underlying TextCtrl font.

Parameters:	font – a valid instance of `wx.Font`.

SetFormat(self, fmt="%f")¶

Set the string format to use.

Parameters:

fmt – the new string format to use. One of the following strings:

Format	Description
‘e’	Floating point exponential format (lowercase)
‘E’	Floating point exponential format (uppercase)
‘f’	Floating point decimal format
‘F’	Floating point decimal format
‘g’	Floating point format. Uses lowercase exponential format if exponent is less than -4 or not less than precision, decimal format otherwise
‘G’	Floating point format. Uses uppercase exponential format if exponent is less than -4 or not less than precision, decimal format otherwise

SetIncrement(self, increment)¶

Sets the increment for every EVT_FLOATSPIN event.

Parameters:	increment – a floating point number specifying the `FloatSpin` increment.

SetRange(self, min_val, max_val)¶

Sets the allowed range.

Parameters:	min_val – the minimum value for `FloatSpin`. If it is `None` it is ignored; max_val – the maximum value for `FloatSpin`. If it is `None` it is ignored.

Note

This method doesn’t modify the current value.

Note

You specify open ranges like this (you can equally do this in the constructor):

SetRange(min_val=1, max_val=None)
SetRange(min_val=None, max_val=0)

or no range:

SetRange(min_val=None, max_val=None)

SetRangeDontClampValue(self, min_val, max_val)¶

Sets the allowed range.

Parameters:	min_val – the minimum value for `FloatSpin`. If it is `None` it is ignored; max_val – the maximum value for `FloatSpin`. If it is `None` it is ignored.

Note

This method doesn’t modify the current value.

SetSnapToTicks(self, forceticks=True)¶

Force the value to always be divisible by the increment. Initially False.

Parameters:	forceticks – `True` to force the snap to ticks option, `False` otherwise.

Note

This uses the default value as the basis, you will get strange results for very large differences between the current value and default value when the increment is very small.

SetToDefaultValue(self)¶: Sets FloatSpin value to its default value.

SetValue(self, value)¶

Sets the FloatSpin value.

Parameters:	value – the new value.

SyncSpinToText(self, send_event=True, force_valid=True)¶

Synchronize the underlying TextCtrl with SpinButton.

Parameters:	send_event – `True` to send a `EVT_FLOATSPIN` event, `False` otherwise; force_valid – `True` to force a valid value (i.e. inside the provided range), `False` otherwise.

Navigation

wx.lib.agw.floatspin.FloatSpin¶

Class Hierarchy¶

Control Appearance¶

Known Superclasses¶

Methods Summary¶

Class API¶

Methods¶