wx.ArtProvider class is used to customize the look of wxWidgets application.
When wxWidgets needs to display an icon or a bitmap (e.g. in the standard file dialog), it does not use a hard-coded resource but asks wx.ArtProvider for it instead. This way users can plug in their own wx.ArtProvider class and easily replace standard art with their own version.
All that is needed is to derive a class from wx.ArtProvider, override either its wx.ArtProvider.CreateBitmap
and/or its wx.ArtProvider.CreateIconBundle
methods and register the provider with wx.ArtProvider.Push
:
class MyProvider(wx.ArtProvider):
def CreateBitmap(self, id, client, size):
# Your implementation of CreateBitmap here
pass
# optionally override this one as well
def CreateIconBundle(self, id, client):
# Your implementation of CreateIconBundle here
pass
# Later on...
wx.ArtProvider.Push(MyProvider())
If you need bitmap images (of the same artwork) that should be displayed at different sizes you should probably consider overriding wx.ArtProvider.CreateIconBundle
and supplying icon bundles that contain different bitmap sizes.
There’s another way of taking advantage of this class: you can use it in your code and use platform native icons as provided by wx.ArtProvider.GetBitmap
or wx.ArtProvider.GetIcon
.
Every bitmap and icon bundle are known to wx.ArtProvider under an unique ID
that is used when requesting a resource from it. The ID
is represented by the wx.ArtID type and can have one of these predefined values (you can see bitmaps represented by these constants in the Art Provider Sample):
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Additionally, any string recognized by custom art providers registered using wx.ArtProvider.Push
may be used.
The client is the entity that calls wx.ArtProvider‘s GetBitmap
or GetIcon
function. It is represented by ClientID type and can have one of these values:
ART_TOOLBAR
ART_MENU
ART_BUTTON
ART_FRAME_ICON
ART_CMN_DIALOG
ART_HELP_BROWSER
ART_MESSAGE_BOX
ART_OTHER
(used for all requests that don’t fit into any of the categories above)Client ID
serve as a hint to
wx.ArtProvider that is supposed to help it to choose the best looking bitmap. For example it is often desirable to use slightly different icons in menus and toolbars even though they represent the same action (e.g. wx.ART_FILE_OPEN
). Remember that this is really only a hint for wx.ArtProvider wx.ArtProvider.GetBitmap
returns identical bitmap for different client values!
Note
When running under GTK+ 2, GTK+ stock item IDs (e.g. "gtk-cdrom"
) may be used as well:
if wx.Platform == '__WXGTK__':
bmp = wx.ArtProvider.GetBitmap("gtk-cdrom", wx.ART_MENU)
For a list of the GTK+ stock items please refer to the GTK+ documentation page. It is also possible to load icons from the current icon theme by specifying their name (without extension and directory components). Icon themes recognized by GTK+ follow the freedesktop.org Icon Themes specification. Note that themes are not guaranteed to contain all icons, so wx.ArtProvider may return wx.NullBitmap
or wx.NullIcon
. The default theme is typically installed in /usr/share/icons/hicolor
.
See also
Art Provider Sample for an example of wx.ArtProvider usage; stock ID list
CreateBitmap |
Derived art provider classes must override this method to create requested art resource. |
CreateIconBundle |
This method is similar to CreateBitmap but can be used when a bitmap (or an icon) exists in several sizes. |
Delete |
Delete the given provider. |
GetBitmap |
Query registered providers for bitmap with given ID . |
GetIcon |
Same as wx.ArtProvider.GetBitmap , but return a wx.Icon object (or wx.NullIcon on failure). |
GetIconBundle |
Query registered providers for icon bundle with given ID . |
GetMessageBoxIcon |
Helper used by several generic classes: return the icon corresponding to the standard ICON_INFORMATION/WARNING/ERROR/QUESTION flags (only one can be set) |
GetMessageBoxIconId |
Helper used by GetMessageBoxIcon : return the art id corresponding to the standard ICON_INFORMATION/WARNING/ERROR/QUESTION flags (only one can be set) |
GetNativeSizeHint |
Returns native icon size for use specified by client hint. |
GetSizeHint |
Returns a suitable size hint for the given ArtClient. |
HasNativeProvider |
Returns True if the platform uses native icons provider that should take precedence over any customizations. |
Insert |
|
Pop |
Remove latest added provider and delete it. |
Push |
Register new art provider and add it to the top of providers stack (i.e. |
PushBack |
Register new art provider and add it to the bottom of providers stack. |
Remove |
Remove a provider from the stack if it is on it. |
wx.
ArtProvider
(Object)¶ArtProvider class is used to customize the look of wxWidgets application.
CreateBitmap
(self, id, client, size)¶Derived art provider classes must override this method to create requested art resource.
Note that returned bitmaps are cached by wx.ArtProvider and it is therefore not necessary to optimize CreateBitmap
for speed (e.g. you may create wx.Bitmap objects from XPMs here).
Parameters: |
|
---|---|
Return type: |
Note
This is not part of wx.ArtProvider‘s public API, use wx.ArtProvider.GetBitmap
or wx.ArtProvider.GetIconBundle
or wx.ArtProvider.GetIcon
to query wx.ArtProvider for a resource.
See also
CreateIconBundle
(self, id, client)¶This method is similar to CreateBitmap
but can be used when a bitmap (or an icon) exists in several sizes.
Parameters: |
|
---|---|
Return type: |
Delete
(provider)¶Delete the given provider.
Parameters: | provider (wx.ArtProvider) – |
---|---|
Return type: | bool |
GetBitmap
(id, client=ART_OTHER, size=DefaultSize)¶Query registered providers for bitmap with given ID
.
Parameters: |
|
---|---|
Return type: | |
Returns: | The bitmap if one of registered providers recognizes the |
GetIcon
(id, client=ART_OTHER, size=DefaultSize)¶Same as wx.ArtProvider.GetBitmap
, but return a wx.Icon object (or wx.NullIcon
on failure).
Parameters: |
|
---|---|
Return type: |
GetIconBundle
(id, client=ART_OTHER)¶Query registered providers for icon bundle with given ID
.
Parameters: |
|
---|---|
Return type: | |
Returns: | The icon bundle if one of registered providers recognizes the |
GetMessageBoxIcon
(flags)¶Helper used by several generic classes: return the icon corresponding to the standard ICON_INFORMATION/WARNING/ERROR/QUESTION flags (only one can be set)
Parameters: | flags (int) – |
---|---|
Return type: | wx.Icon |
GetMessageBoxIconId
(flags)¶Helper used by GetMessageBoxIcon
: return the art id corresponding to the standard ICON_INFORMATION/WARNING/ERROR/QUESTION flags (only one can be set)
Parameters: | flags (int) – |
---|---|
Return type: | wx.ArtID |
GetNativeSizeHint
(client)¶Returns native icon size for use specified by client hint.
If the platform has no commonly used default for this use or if client is not recognized, returns DefaultSize.
Parameters: | client (wx.ArtClient) – |
---|---|
Return type: | wx.Size |
New in version 2.9.0.
Note
In some cases, a platform may have several appropriate native sizes (for example, wx.ART_FRAME_ICON
for frame icons). In that case, this method returns only one of them, picked reasonably.
GetSizeHint
(client, platform_default=False)¶Returns a suitable size hint for the given ArtClient.
If platform_default is True
, return a size based on the current platform using GetNativeSizeHint
, otherwise return the size from the topmost wx.ArtProvider. DefaultSize may be returned if the client doesn’t have a specified size, like wx.ART_OTHER
for example.
Parameters: |
|
---|---|
Return type: |
See also
HasNativeProvider
()¶Returns True
if the platform uses native icons provider that should take precedence over any customizations.
This is True
for any platform that has user-customizable icon themes, currently only wxGTK.
A typical use for this method is to decide whether a custom art provider should be plugged in using Push
or PushBack
.
Return type: | bool |
---|
New in version 2.9.0.
Insert
(provider)¶Parameters: | provider (wx.ArtProvider) – |
---|
Deprecated since version 4.0.1: Use PushBack
instead.
Pop
()¶Remove latest added provider and delete it.
Return type: | bool |
---|
Push
(provider)¶Register new art provider and add it to the top of providers stack (i.e.
it will be queried as the first provider).
Parameters: | provider (wx.ArtProvider) – |
---|
See also
PushBack
(provider)¶Register new art provider and add it to the bottom of providers stack.
In other words, it will be queried as the last one, after all others, including the default provider.
Parameters: | provider (wx.ArtProvider) – |
---|
New in version 2.9.0.
See also
Remove
(provider)¶Remove a provider from the stack if it is on it.
The provider is not deleted, unlike when using Delete
.
Parameters: | provider (wx.ArtProvider) – |
---|---|
Return type: | bool |