wx.Brush

A brush is a drawing tool for filling in areas.

It is used for painting the background of rectangles, ellipses, etc. It has a colour and a style.

On a monochrome display, wxWidgets shows all brushes as white unless the colour is really black.

Do not initialize objects on the stack before the program commences, since other required structures may not have been set up yet. Instead, define global pointers to objects and create them in wx.App.OnInit or when required.

An application may wish to create brushes with different characteristics dynamically, and there is the consequent danger that a large number of duplicate brushes will be created. Therefore an application may wish to get a pointer to a brush by using the global list of brushes wx.TheBrushList , and calling the member function wx.BrushList.FindOrCreateBrush .

This class uses reference counting and copy-on-write internally so that assignments between two instances of this class are very cheap. You can therefore use actual objects instead of pointers without efficiency problems. If an instance of this class is changed it will create its own data internally so that other instances, which previously shared the data using the reference counting, are not affected.

See also

wx.BrushList, wx.DC, wx.DC.SetBrush

Class Hierarchy

Inheritance diagram for class Brush:

Methods Summary

__init__	Default constructor.
GetColour	Returns a reference to the brush colour.
GetStipple	Gets a pointer to the stipple bitmap.
GetStyle	Returns the brush style, one of the wx.BrushStyle values.
IsHatch	Returns True if the style of the brush is any of hatched fills.
IsNonTransparent	Returns True if the brush is a valid non-transparent brush.
IsOk	Returns True if the brush is initialised.
IsTransparent	Returns True if the brush is transparent.
MacSetTheme
SetColour	Sets the brush colour using red, green and blue values.
SetStipple	Sets the stipple bitmap.
SetStyle	Sets the brush style.
__bool__
__nonzero__
_copyFrom	For internal use only.
__ne__	Inequality operator.
__eq__	Equality operator.

Properties Summary

Colour	See GetColour and SetColour
Stipple	See GetStipple and SetStipple
Style	See GetStyle and SetStyle

Class API

class wx.Brush(GDIObject)

Possible constructors:

Brush()

Brush(colour, style=BRUSHSTYLE_SOLID)

Brush(stippleBitmap)

Brush(brush)

A brush is a drawing tool for filling in areas.

Methods

__init__(self, *args, **kw)

Overloaded Implementations:

---

__init__ (self)

Default constructor.

The brush will be uninitialised, and wx.Brush: IsOk will return False.

---

__init__ (self, colour, style=BRUSHSTYLE_SOLID)

Constructs a brush from a colour object and style.

Parameters

• colour (wx.Colour) – Colour object.

• style (BrushStyle) – One of the wx.BrushStyle enumeration values.

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__init__ (self, stippleBitmap)

Constructs a stippled brush using a bitmap.

The brush style will be set to BRUSHSTYLE_STIPPLE .

Parameters

stippleBitmap (wx.Bitmap) –

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__init__ (self, brush)

Copy constructor, uses reference counting.

Parameters

brush (wx.Brush) –

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---

GetColour(self)

Returns a reference to the brush colour.

Return type

wx.Colour

See also

SetColour

---

GetStipple(self)

Gets a pointer to the stipple bitmap.

If the brush does not have a BRUSHSTYLE_STIPPLE style, this bitmap may be not None but uninitialised (i.e. wx.Bitmap: IsOk returns False).

Return type

wx.Bitmap

See also

SetStipple

---

GetStyle(self)

Returns the brush style, one of the wx.BrushStyle values.

Return type

wx.BrushStyle

See also

SetStyle , SetColour , SetStipple

---

IsHatch(self)

Returns True if the style of the brush is any of hatched fills.

Return type

bool

See also

GetStyle

---

IsNonTransparent(self)

Returns True if the brush is a valid non-transparent brush.

This method returns True if the brush object is initialized and has a non-transparent style. Notice that this should be used instead of simply testing whether GetStyle returns a style different from wx.BRUSHSTYLE_TRANSPARENT if the brush may be invalid as GetStyle would assert in this case.

Return type

bool

New in version 2.9.2..

See also

IsTransparent

---

IsOk(self)

Returns True if the brush is initialised.

Notice that an uninitialized brush object can’t be queried for any brush properties and all calls to the accessor methods on it will result in an assert failure.

Return type

bool

---

IsTransparent(self)

Returns True if the brush is transparent.

A transparent brush is simply a brush with wx.BRUSHSTYLE_TRANSPARENT style.

Notice that this function works even for non-initialized brushes (for which it returns False) unlike tests of the form GetStyle == wx.BRUSHSTYLE_TRANSPARENT which would assert if the brush is invalid.

Return type

bool

New in version 2.9.2..

See also

IsNonTransparent

---

MacSetTheme(self, macThemeBrushID)

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SetColour(self, *args, **kw)

Sets the brush colour using red, green and blue values.

See also

GetColour

Overloaded Implementations:

---

SetColour (self, colour)

Parameters

colour (wx.Colour) –

---

SetColour (self, red, green, blue)

Parameters

• red (int) –

• green (int) –

• blue (int) –

---

---

SetStipple(self, bitmap)

Sets the stipple bitmap.

Parameters

bitmap (wx.Bitmap) – The bitmap to use for stippling.

Note

The style will be set to BRUSHSTYLE_STIPPLE , unless the bitmap has a mask associated to it, in which case the style will be set to BRUSHSTYLE_STIPPLE_MASK_OPAQUE .

See also

wx.Bitmap

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SetStyle(self, style)

Sets the brush style.

Parameters

style (BrushStyle) – One of the wx.BrushStyle values.

See also

GetStyle

---

__bool__(self)

Return type

int

---

__nonzero__(self)

Return type

int

---

_copyFrom(self, other)

For internal use only.

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__ne__(self)

Inequality operator.

See Object Comparison for more info.

Parameters

brush (wx.Brush) –

---

__eq__(self)

Equality operator.

See Object Comparison for more info.

Parameters

brush (wx.Brush) –

Properties

Colour

See GetColour and SetColour

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Stipple

See GetStipple and SetStipple

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Style

See GetStyle and SetStyle