matplotlib 导航工具栏在 wx 2.9 (Mac OS X) 中没有实现 [英] matplotlib navtoolbar doesn't realize in wx 2.9 (Mac OS X)
问题描述
当在 wxPython 2.8.x、Python 2.5.4/2.6、Matplotlib 0.99.x 上运行时，以下代码会在框架顶部按预期生成一个 matplotlib NavToolbar2.
The following piece of code produces a matplotlib NavToolbar2 at the top of a frame as expected when run on wxPython 2.8.x, Python 2.5.4/2.6, Matplotlib 0.99.x.
然而，我最近转移到 Python 2.7 和 wxPython 2.9.1 以尝试支持 64 位 OS X.正是在这种环境下，下面的代码会产生一个空的工具栏:
However, I've recently moved to Python 2.7, and wxPython 2.9.1 in an attempt to support OS X in 64-bit. It's under this environment that the code below produces an empty toolbar:
我在构建 matplotlib 时注意到它说 wx 2.9 及更高版本不需要 WxAgg，这可能是问题吗?到目前为止，我只尝试用 FigureCanvasWx 替换 FigureCanvasWxAgg ，并用 NavigationToolbar2Wx 替换 NavigationToolbar2WxAgg .没有运气.
I noticed when building matplotlib that it said something about not needing WxAgg for wx 2.9 and up, might this be the problem? All I've tried so far is to replace FigureCanvasWxAgg with FigureCanvasWx and NavigationToolbar2WxAgg with NavigationToolbar2Wx. No luck.
知道发生了什么吗?
import wx
from matplotlib.backends.backend_wxagg import FigureCanvasWxAgg, NavigationToolbar2WxAgg
import matplotlib as mpl
app = wx.PySimpleApp()
f = wx.Frame(None)
fig = mpl.figure.Figure()
p = FigureCanvasWxAgg(f, -1, fig)
tb = NavigationToolbar2WxAgg(fig.canvas)
f.SetToolBar(tb)
tb.Realize()
f.Show()
app.MainLoop()
还有一件事...如果我用我自己的自定义导航工具栏类替换 NavigationToolbar2WxAgg(此线程上第一个答案的代码:
One more thing... if I replace the NavigationToolbar2WxAgg with my own custom navtoolbar class (code at first answer on this thread: Add new navigate modes in matplotlib), the whole thing crashes unless I remove tb.Realize().
2011-05-25 08:21:18.354 Python[48013:60f] *** Assertion failure in -[NSToolbar _itemAtIndex:], /SourceCache/AppKit/AppKit-1038.35/Toolbar.subproj/NSToolbar.m:1227
2011-05-25 08:21:18.356 Python[48013:60f] An uncaught exception was raised
2011-05-25 08:21:18.356 Python[48013:60f] Invalid parameter not satisfying: index>=0 && index<[self _numberOfItems]
2011-05-25 08:21:18.358 Python[48013:60f] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Invalid parameter not satisfying: index>=0 && index<[self _numberOfItems]'
*** Call stack at first throw:
(
0 CoreFoundation 0x00007fff868ef7b4 __exceptionPreprocess + 180
1 libobjc.A.dylib 0x00007fff83e9b0f3 objc_exception_throw + 45
2 CoreFoundation 0x00007fff868ef5d7 +[NSException raise:format:arguments:] + 103
3 Foundation 0x00007fff86d7c77e -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 198
4 AppKit 0x00007fff806f44a9 -[NSToolbar _itemAtIndex:] + 158
5 AppKit 0x00007fff806f3e94 -[NSToolbar _removeItemAtIndex:notifyDelegate:notifyView:notifyFamilyAndUpdateDefaults:] + 56
6 libwx_osx_cocoau-2.9.1.0.0.dylib 0x0000000101aea2a6 _ZN9wxToolBar7RealizeEv + 1430
7 _controls_.so 0x00000001048d4b76 _wrap_ToolBarBase_Realize + 102
8 .Python 0x00000001000ca81a PyEval_EvalFrameEx + 23498
9 .Python 0x00000001000cc8c5 PyEval_EvalCodeEx + 1733
10 .Python 0x00000001000ca9bf PyEval_EvalFrameEx + 23919
11 .Python 0x00000001000cc8c5 PyEval_EvalCodeEx + 1733
12 .Python 0x00000001000cb0c8 PyEval_EvalFrameEx + 25720
13 .Python 0x00000001000cc8c5 PyEval_EvalCodeEx + 1733
14 .Python 0x00000001000ca9bf PyEval_EvalFrameEx + 23919
15 .Python 0x00000001000cb2a6 PyEval_EvalFrameEx + 26198
16 .Python 0x00000001000cb2a6 PyEval_EvalFrameEx + 26198
17 .Python 0x00000001000cc8c5 PyEval_EvalCodeEx + 1733
18 .Python 0x00000001000ca9bf PyEval_EvalFrameEx + 23919
19 .Python 0x00000001000cb2a6 PyEval_EvalFrameEx + 26198
20 .Python 0x00000001000cc8c5 PyEval_EvalCodeEx + 1733
21 .Python 0x00000001000ccbc6 PyEval_EvalCode + 54
22 .Python 0x00000001000f0c7e PyRun_FileExFlags + 174
23 .Python 0x00000001000f1aa1 PyRun_SimpleFileExFlags + 817
24 .Python 0x00000001001093d9 Py_Main + 2825
25 Python 0x0000000100000f54 0x0 + 4294971220
)
terminate called after throwing an instance of 'NSException'
推荐答案
这似乎是一个错误，但我不知道问题出在matplotlib，wxPython还是backend_wx.py中.我为修复它所做的是查看
It seems like a bug, but I do not know if the problem lies in matplotlib, in wxPython or in the backend_wx.py. What I did to fix it is that I looked in the backend_wx.py source code for the Toolbar and put it directly in my wxPython toolbar. So this works for me:
import os
import wx
from matplotlib.backends.backend_wxagg import FigureCanvasWxAgg, NavigationToolbar2WxAgg
from matplotlib.backends.backend_wx import _load_bitmap
import matplotlib as mpl
app = wx.PySimpleApp()
f = wx.Frame(None)
fig = mpl.figure.Figure()
p = FigureCanvasWxAgg(f, -1, fig)
toolbar = NavigationToolbar2WxAgg(p)
toolbar.Hide()
#toolbar constants
TBFLAGS = (wx.TB_HORIZONTAL|wx.TB_TEXT)
tsize = (24,24)
tb = f.CreateToolBar(TBFLAGS)
_NTB2_HOME = wx.NewId()
_NTB2_BACK = wx.NewId()
_NTB2_FORWARD = wx.NewId()
_NTB2_PAN = wx.NewId()
_NTB2_ZOOM = wx.NewId()
_NTB2_SAVE = wx.NewId()
_NTB2_SUBPLOT = wx.NewId()
tb.AddSimpleTool(_NTB2_HOME, _load_bitmap('home.png'), 'Home', 'Reset original view')
tb.AddSimpleTool(_NTB2_BACK, _load_bitmap('back.png'), 'Back', 'Back navigation view')
tb.AddSimpleTool(_NTB2_FORWARD, _load_bitmap('forward.png'), 'Forward', 'Forward navigation view')
tb.AddCheckTool(_NTB2_PAN, _load_bitmap('move.png'), shortHelp='Pan', longHelp='Pan with left, zoom with right')
tb.AddCheckTool(_NTB2_ZOOM, _load_bitmap('zoom_to_rect.png'), shortHelp='Zoom', longHelp='Zoom to rectangle')
tb.AddSeparator()
tb.AddSimpleTool(_NTB2_SUBPLOT, _load_bitmap('subplots.png'), 'Configure subplots', 'Configure subplot parameters')
tb.AddSimpleTool(_NTB2_SAVE, _load_bitmap('filesave.png'), 'Save', 'Save plot contents to file')
f.Bind(wx.EVT_TOOL, toolbar.home, id=_NTB2_HOME)
f.Bind(wx.EVT_TOOL, toolbar.forward, id=_NTB2_FORWARD)
f.Bind(wx.EVT_TOOL, toolbar.back, id=_NTB2_BACK)
f.Bind(wx.EVT_TOOL, toolbar.zoom, id=_NTB2_ZOOM)
f.Bind(wx.EVT_TOOL, toolbar.pan, id=_NTB2_PAN)
f.Bind(wx.EVT_TOOL, toolbar.configure_subplot, id=_NTB2_SUBPLOT)
f.Bind(wx.EVT_TOOL, toolbar.save, id=_NTB2_SAVE)
tb.Realize()
tb.Realize()
f.Show()
app.MainLoop()
这是一个快速解决方案，但我猜有些人必须为此提交错误报告.
This is a quick fix, but some one has to file a bug report for it I guess.
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