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@@ -1,369 +1,376 b'' | |||||
1 | # -*- coding: utf-8 -*- |
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1 | # -*- coding: utf-8 -*- | |
2 | """Pylab (matplotlib) support utilities.""" |
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2 | """Pylab (matplotlib) support utilities.""" | |
3 | from __future__ import print_function |
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3 | from __future__ import print_function | |
4 |
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4 | |||
5 | # Copyright (c) IPython Development Team. |
|
5 | # Copyright (c) IPython Development Team. | |
6 | # Distributed under the terms of the Modified BSD License. |
|
6 | # Distributed under the terms of the Modified BSD License. | |
7 |
|
7 | |||
8 | from io import BytesIO |
|
8 | from io import BytesIO | |
9 |
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9 | |||
10 | from IPython.core.display import _pngxy |
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10 | from IPython.core.display import _pngxy | |
11 | from IPython.utils.decorators import flag_calls |
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11 | from IPython.utils.decorators import flag_calls | |
12 | from IPython.utils import py3compat |
|
12 | from IPython.utils import py3compat | |
13 |
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13 | |||
14 | # If user specifies a GUI, that dictates the backend, otherwise we read the |
|
14 | # If user specifies a GUI, that dictates the backend, otherwise we read the | |
15 | # user's mpl default from the mpl rc structure |
|
15 | # user's mpl default from the mpl rc structure | |
16 | backends = {'tk': 'TkAgg', |
|
16 | backends = {'tk': 'TkAgg', | |
17 | 'gtk': 'GTKAgg', |
|
17 | 'gtk': 'GTKAgg', | |
18 | 'gtk3': 'GTK3Agg', |
|
18 | 'gtk3': 'GTK3Agg', | |
19 | 'wx': 'WXAgg', |
|
19 | 'wx': 'WXAgg', | |
20 | 'qt': 'Qt4Agg', # qt3 not supported |
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20 | 'qt': 'Qt4Agg', # qt3 not supported | |
21 | 'qt4': 'Qt4Agg', |
|
21 | 'qt4': 'Qt4Agg', | |
22 | 'qt5': 'Qt5Agg', |
|
22 | 'qt5': 'Qt5Agg', | |
23 | 'osx': 'MacOSX', |
|
23 | 'osx': 'MacOSX', | |
24 | 'nbagg': 'nbAgg', |
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24 | 'nbagg': 'nbAgg', | |
25 | 'notebook': 'nbAgg', |
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25 | 'notebook': 'nbAgg', | |
26 | 'inline' : 'module://ipykernel.pylab.backend_inline'} |
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26 | 'inline' : 'module://ipykernel.pylab.backend_inline'} | |
27 |
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27 | |||
28 | # We also need a reverse backends2guis mapping that will properly choose which |
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28 | # We also need a reverse backends2guis mapping that will properly choose which | |
29 | # GUI support to activate based on the desired matplotlib backend. For the |
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29 | # GUI support to activate based on the desired matplotlib backend. For the | |
30 | # most part it's just a reverse of the above dict, but we also need to add a |
|
30 | # most part it's just a reverse of the above dict, but we also need to add a | |
31 | # few others that map to the same GUI manually: |
|
31 | # few others that map to the same GUI manually: | |
32 | backend2gui = dict(zip(backends.values(), backends.keys())) |
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32 | backend2gui = dict(zip(backends.values(), backends.keys())) | |
33 | # Our tests expect backend2gui to just return 'qt' |
|
33 | # Our tests expect backend2gui to just return 'qt' | |
34 | backend2gui['Qt4Agg'] = 'qt' |
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34 | backend2gui['Qt4Agg'] = 'qt' | |
35 | # In the reverse mapping, there are a few extra valid matplotlib backends that |
|
35 | # In the reverse mapping, there are a few extra valid matplotlib backends that | |
36 | # map to the same GUI support |
|
36 | # map to the same GUI support | |
37 | backend2gui['GTK'] = backend2gui['GTKCairo'] = 'gtk' |
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37 | backend2gui['GTK'] = backend2gui['GTKCairo'] = 'gtk' | |
38 | backend2gui['GTK3Cairo'] = 'gtk3' |
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38 | backend2gui['GTK3Cairo'] = 'gtk3' | |
39 | backend2gui['WX'] = 'wx' |
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39 | backend2gui['WX'] = 'wx' | |
40 | backend2gui['CocoaAgg'] = 'osx' |
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40 | backend2gui['CocoaAgg'] = 'osx' | |
41 |
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41 | |||
42 | #----------------------------------------------------------------------------- |
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42 | #----------------------------------------------------------------------------- | |
43 | # Matplotlib utilities |
|
43 | # Matplotlib utilities | |
44 | #----------------------------------------------------------------------------- |
|
44 | #----------------------------------------------------------------------------- | |
45 |
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45 | |||
46 |
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46 | |||
47 | def getfigs(*fig_nums): |
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47 | def getfigs(*fig_nums): | |
48 | """Get a list of matplotlib figures by figure numbers. |
|
48 | """Get a list of matplotlib figures by figure numbers. | |
49 |
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49 | |||
50 | If no arguments are given, all available figures are returned. If the |
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50 | If no arguments are given, all available figures are returned. If the | |
51 | argument list contains references to invalid figures, a warning is printed |
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51 | argument list contains references to invalid figures, a warning is printed | |
52 | but the function continues pasting further figures. |
|
52 | but the function continues pasting further figures. | |
53 |
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53 | |||
54 | Parameters |
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54 | Parameters | |
55 | ---------- |
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55 | ---------- | |
56 | figs : tuple |
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56 | figs : tuple | |
57 | A tuple of ints giving the figure numbers of the figures to return. |
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57 | A tuple of ints giving the figure numbers of the figures to return. | |
58 | """ |
|
58 | """ | |
59 | from matplotlib._pylab_helpers import Gcf |
|
59 | from matplotlib._pylab_helpers import Gcf | |
60 | if not fig_nums: |
|
60 | if not fig_nums: | |
61 | fig_managers = Gcf.get_all_fig_managers() |
|
61 | fig_managers = Gcf.get_all_fig_managers() | |
62 | return [fm.canvas.figure for fm in fig_managers] |
|
62 | return [fm.canvas.figure for fm in fig_managers] | |
63 | else: |
|
63 | else: | |
64 | figs = [] |
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64 | figs = [] | |
65 | for num in fig_nums: |
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65 | for num in fig_nums: | |
66 | f = Gcf.figs.get(num) |
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66 | f = Gcf.figs.get(num) | |
67 | if f is None: |
|
67 | if f is None: | |
68 | print('Warning: figure %s not available.' % num) |
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68 | print('Warning: figure %s not available.' % num) | |
69 | else: |
|
69 | else: | |
70 | figs.append(f.canvas.figure) |
|
70 | figs.append(f.canvas.figure) | |
71 | return figs |
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71 | return figs | |
72 |
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72 | |||
73 |
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73 | |||
74 | def figsize(sizex, sizey): |
|
74 | def figsize(sizex, sizey): | |
75 | """Set the default figure size to be [sizex, sizey]. |
|
75 | """Set the default figure size to be [sizex, sizey]. | |
76 |
|
76 | |||
77 | This is just an easy to remember, convenience wrapper that sets:: |
|
77 | This is just an easy to remember, convenience wrapper that sets:: | |
78 |
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78 | |||
79 | matplotlib.rcParams['figure.figsize'] = [sizex, sizey] |
|
79 | matplotlib.rcParams['figure.figsize'] = [sizex, sizey] | |
80 | """ |
|
80 | """ | |
81 | import matplotlib |
|
81 | import matplotlib | |
82 | matplotlib.rcParams['figure.figsize'] = [sizex, sizey] |
|
82 | matplotlib.rcParams['figure.figsize'] = [sizex, sizey] | |
83 |
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83 | |||
84 |
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84 | |||
85 | def print_figure(fig, fmt='png', bbox_inches='tight', **kwargs): |
|
85 | def print_figure(fig, fmt='png', bbox_inches='tight', **kwargs): | |
86 | """Print a figure to an image, and return the resulting file data |
|
86 | """Print a figure to an image, and return the resulting file data | |
87 |
|
87 | |||
88 | Returned data will be bytes unless ``fmt='svg'``, |
|
88 | Returned data will be bytes unless ``fmt='svg'``, | |
89 | in which case it will be unicode. |
|
89 | in which case it will be unicode. | |
90 |
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90 | |||
91 | Any keyword args are passed to fig.canvas.print_figure, |
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91 | Any keyword args are passed to fig.canvas.print_figure, | |
92 | such as ``quality`` or ``bbox_inches``. |
|
92 | such as ``quality`` or ``bbox_inches``. | |
93 | """ |
|
93 | """ | |
94 | from matplotlib import rcParams |
|
94 | from matplotlib import rcParams | |
95 | # When there's an empty figure, we shouldn't return anything, otherwise we |
|
95 | # When there's an empty figure, we shouldn't return anything, otherwise we | |
96 | # get big blank areas in the qt console. |
|
96 | # get big blank areas in the qt console. | |
97 | if not fig.axes and not fig.lines: |
|
97 | if not fig.axes and not fig.lines: | |
98 | return |
|
98 | return | |
99 |
|
99 | |||
100 | dpi = rcParams['savefig.dpi'] |
|
100 | dpi = rcParams['savefig.dpi'] | |
101 | if fmt == 'retina': |
|
101 | if fmt == 'retina': | |
102 | dpi = dpi * 2 |
|
102 | dpi = dpi * 2 | |
103 | fmt = 'png' |
|
103 | fmt = 'png' | |
104 |
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104 | |||
105 | # build keyword args |
|
105 | # build keyword args | |
106 | kw = dict( |
|
106 | kw = dict( | |
107 | format=fmt, |
|
107 | format=fmt, | |
108 | facecolor=fig.get_facecolor(), |
|
108 | facecolor=fig.get_facecolor(), | |
109 | edgecolor=fig.get_edgecolor(), |
|
109 | edgecolor=fig.get_edgecolor(), | |
110 | dpi=dpi, |
|
110 | dpi=dpi, | |
111 | bbox_inches=bbox_inches, |
|
111 | bbox_inches=bbox_inches, | |
112 | ) |
|
112 | ) | |
113 | # **kwargs get higher priority |
|
113 | # **kwargs get higher priority | |
114 | kw.update(kwargs) |
|
114 | kw.update(kwargs) | |
115 |
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115 | |||
116 | bytes_io = BytesIO() |
|
116 | bytes_io = BytesIO() | |
117 | fig.canvas.print_figure(bytes_io, **kw) |
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117 | fig.canvas.print_figure(bytes_io, **kw) | |
118 | data = bytes_io.getvalue() |
|
118 | data = bytes_io.getvalue() | |
119 | if fmt == 'svg': |
|
119 | if fmt == 'svg': | |
120 | data = data.decode('utf-8') |
|
120 | data = data.decode('utf-8') | |
121 | return data |
|
121 | return data | |
122 |
|
122 | |||
123 | def retina_figure(fig, **kwargs): |
|
123 | def retina_figure(fig, **kwargs): | |
124 | """format a figure as a pixel-doubled (retina) PNG""" |
|
124 | """format a figure as a pixel-doubled (retina) PNG""" | |
125 | pngdata = print_figure(fig, fmt='retina', **kwargs) |
|
125 | pngdata = print_figure(fig, fmt='retina', **kwargs) | |
126 | w, h = _pngxy(pngdata) |
|
126 | w, h = _pngxy(pngdata) | |
127 | metadata = dict(width=w//2, height=h//2) |
|
127 | metadata = dict(width=w//2, height=h//2) | |
128 | return pngdata, metadata |
|
128 | return pngdata, metadata | |
129 |
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129 | |||
130 | # We need a little factory function here to create the closure where |
|
130 | # We need a little factory function here to create the closure where | |
131 | # safe_execfile can live. |
|
131 | # safe_execfile can live. | |
132 | def mpl_runner(safe_execfile): |
|
132 | def mpl_runner(safe_execfile): | |
133 | """Factory to return a matplotlib-enabled runner for %run. |
|
133 | """Factory to return a matplotlib-enabled runner for %run. | |
134 |
|
134 | |||
135 | Parameters |
|
135 | Parameters | |
136 | ---------- |
|
136 | ---------- | |
137 | safe_execfile : function |
|
137 | safe_execfile : function | |
138 | This must be a function with the same interface as the |
|
138 | This must be a function with the same interface as the | |
139 | :meth:`safe_execfile` method of IPython. |
|
139 | :meth:`safe_execfile` method of IPython. | |
140 |
|
140 | |||
141 | Returns |
|
141 | Returns | |
142 | ------- |
|
142 | ------- | |
143 | A function suitable for use as the ``runner`` argument of the %run magic |
|
143 | A function suitable for use as the ``runner`` argument of the %run magic | |
144 | function. |
|
144 | function. | |
145 | """ |
|
145 | """ | |
146 |
|
146 | |||
147 | def mpl_execfile(fname,*where,**kw): |
|
147 | def mpl_execfile(fname,*where,**kw): | |
148 | """matplotlib-aware wrapper around safe_execfile. |
|
148 | """matplotlib-aware wrapper around safe_execfile. | |
149 |
|
149 | |||
150 | Its interface is identical to that of the :func:`execfile` builtin. |
|
150 | Its interface is identical to that of the :func:`execfile` builtin. | |
151 |
|
151 | |||
152 | This is ultimately a call to execfile(), but wrapped in safeties to |
|
152 | This is ultimately a call to execfile(), but wrapped in safeties to | |
153 | properly handle interactive rendering.""" |
|
153 | properly handle interactive rendering.""" | |
154 |
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154 | |||
155 | import matplotlib |
|
155 | import matplotlib | |
156 | import matplotlib.pylab as pylab |
|
156 | import matplotlib.pylab as pylab | |
157 |
|
157 | |||
158 | #print '*** Matplotlib runner ***' # dbg |
|
158 | #print '*** Matplotlib runner ***' # dbg | |
159 | # turn off rendering until end of script |
|
159 | # turn off rendering until end of script | |
160 | is_interactive = matplotlib.rcParams['interactive'] |
|
160 | is_interactive = matplotlib.rcParams['interactive'] | |
161 | matplotlib.interactive(False) |
|
161 | matplotlib.interactive(False) | |
162 | safe_execfile(fname,*where,**kw) |
|
162 | safe_execfile(fname,*where,**kw) | |
163 | matplotlib.interactive(is_interactive) |
|
163 | matplotlib.interactive(is_interactive) | |
164 | # make rendering call now, if the user tried to do it |
|
164 | # make rendering call now, if the user tried to do it | |
165 | if pylab.draw_if_interactive.called: |
|
165 | if pylab.draw_if_interactive.called: | |
166 | pylab.draw() |
|
166 | pylab.draw() | |
167 | pylab.draw_if_interactive.called = False |
|
167 | pylab.draw_if_interactive.called = False | |
168 |
|
168 | |||
169 | return mpl_execfile |
|
169 | return mpl_execfile | |
170 |
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170 | |||
171 |
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171 | |||
172 | def select_figure_formats(shell, formats, **kwargs): |
|
172 | def select_figure_formats(shell, formats, **kwargs): | |
173 | """Select figure formats for the inline backend. |
|
173 | """Select figure formats for the inline backend. | |
174 |
|
174 | |||
175 | Parameters |
|
175 | Parameters | |
176 | ========== |
|
176 | ========== | |
177 | shell : InteractiveShell |
|
177 | shell : InteractiveShell | |
178 | The main IPython instance. |
|
178 | The main IPython instance. | |
179 | formats : str or set |
|
179 | formats : str or set | |
180 | One or a set of figure formats to enable: 'png', 'retina', 'jpeg', 'svg', 'pdf'. |
|
180 | One or a set of figure formats to enable: 'png', 'retina', 'jpeg', 'svg', 'pdf'. | |
181 | **kwargs : any |
|
181 | **kwargs : any | |
182 | Extra keyword arguments to be passed to fig.canvas.print_figure. |
|
182 | Extra keyword arguments to be passed to fig.canvas.print_figure. | |
183 | """ |
|
183 | """ | |
184 | from matplotlib.figure import Figure |
|
184 | from matplotlib.figure import Figure | |
185 | from ipykernel.pylab import backend_inline |
|
185 | from ipykernel.pylab import backend_inline | |
186 |
|
186 | |||
187 | svg_formatter = shell.display_formatter.formatters['image/svg+xml'] |
|
187 | svg_formatter = shell.display_formatter.formatters['image/svg+xml'] | |
188 | png_formatter = shell.display_formatter.formatters['image/png'] |
|
188 | png_formatter = shell.display_formatter.formatters['image/png'] | |
189 | jpg_formatter = shell.display_formatter.formatters['image/jpeg'] |
|
189 | jpg_formatter = shell.display_formatter.formatters['image/jpeg'] | |
190 | pdf_formatter = shell.display_formatter.formatters['application/pdf'] |
|
190 | pdf_formatter = shell.display_formatter.formatters['application/pdf'] | |
191 |
|
191 | |||
192 | if isinstance(formats, py3compat.string_types): |
|
192 | if isinstance(formats, py3compat.string_types): | |
193 | formats = {formats} |
|
193 | formats = {formats} | |
194 | # cast in case of list / tuple |
|
194 | # cast in case of list / tuple | |
195 | formats = set(formats) |
|
195 | formats = set(formats) | |
196 |
|
196 | |||
197 | [ f.pop(Figure, None) for f in shell.display_formatter.formatters.values() ] |
|
197 | [ f.pop(Figure, None) for f in shell.display_formatter.formatters.values() ] | |
198 |
|
198 | |||
199 | supported = {'png', 'png2x', 'retina', 'jpg', 'jpeg', 'svg', 'pdf'} |
|
199 | supported = {'png', 'png2x', 'retina', 'jpg', 'jpeg', 'svg', 'pdf'} | |
200 | bad = formats.difference(supported) |
|
200 | bad = formats.difference(supported) | |
201 | if bad: |
|
201 | if bad: | |
202 | bs = "%s" % ','.join([repr(f) for f in bad]) |
|
202 | bs = "%s" % ','.join([repr(f) for f in bad]) | |
203 | gs = "%s" % ','.join([repr(f) for f in supported]) |
|
203 | gs = "%s" % ','.join([repr(f) for f in supported]) | |
204 | raise ValueError("supported formats are: %s not %s" % (gs, bs)) |
|
204 | raise ValueError("supported formats are: %s not %s" % (gs, bs)) | |
205 |
|
205 | |||
206 | if 'png' in formats: |
|
206 | if 'png' in formats: | |
207 | png_formatter.for_type(Figure, lambda fig: print_figure(fig, 'png', **kwargs)) |
|
207 | png_formatter.for_type(Figure, lambda fig: print_figure(fig, 'png', **kwargs)) | |
208 | if 'retina' in formats or 'png2x' in formats: |
|
208 | if 'retina' in formats or 'png2x' in formats: | |
209 | png_formatter.for_type(Figure, lambda fig: retina_figure(fig, **kwargs)) |
|
209 | png_formatter.for_type(Figure, lambda fig: retina_figure(fig, **kwargs)) | |
210 | if 'jpg' in formats or 'jpeg' in formats: |
|
210 | if 'jpg' in formats or 'jpeg' in formats: | |
211 | jpg_formatter.for_type(Figure, lambda fig: print_figure(fig, 'jpg', **kwargs)) |
|
211 | jpg_formatter.for_type(Figure, lambda fig: print_figure(fig, 'jpg', **kwargs)) | |
212 | if 'svg' in formats: |
|
212 | if 'svg' in formats: | |
213 | svg_formatter.for_type(Figure, lambda fig: print_figure(fig, 'svg', **kwargs)) |
|
213 | svg_formatter.for_type(Figure, lambda fig: print_figure(fig, 'svg', **kwargs)) | |
214 | if 'pdf' in formats: |
|
214 | if 'pdf' in formats: | |
215 | pdf_formatter.for_type(Figure, lambda fig: print_figure(fig, 'pdf', **kwargs)) |
|
215 | pdf_formatter.for_type(Figure, lambda fig: print_figure(fig, 'pdf', **kwargs)) | |
216 |
|
216 | |||
217 | #----------------------------------------------------------------------------- |
|
217 | #----------------------------------------------------------------------------- | |
218 | # Code for initializing matplotlib and importing pylab |
|
218 | # Code for initializing matplotlib and importing pylab | |
219 | #----------------------------------------------------------------------------- |
|
219 | #----------------------------------------------------------------------------- | |
220 |
|
220 | |||
221 |
|
221 | |||
222 | def find_gui_and_backend(gui=None, gui_select=None): |
|
222 | def find_gui_and_backend(gui=None, gui_select=None): | |
223 | """Given a gui string return the gui and mpl backend. |
|
223 | """Given a gui string return the gui and mpl backend. | |
224 |
|
224 | |||
225 | Parameters |
|
225 | Parameters | |
226 | ---------- |
|
226 | ---------- | |
227 | gui : str |
|
227 | gui : str | |
228 | Can be one of ('tk','gtk','wx','qt','qt4','inline'). |
|
228 | Can be one of ('tk','gtk','wx','qt','qt4','inline'). | |
229 | gui_select : str |
|
229 | gui_select : str | |
230 | Can be one of ('tk','gtk','wx','qt','qt4','inline'). |
|
230 | Can be one of ('tk','gtk','wx','qt','qt4','inline'). | |
231 | This is any gui already selected by the shell. |
|
231 | This is any gui already selected by the shell. | |
232 |
|
232 | |||
233 | Returns |
|
233 | Returns | |
234 | ------- |
|
234 | ------- | |
235 | A tuple of (gui, backend) where backend is one of ('TkAgg','GTKAgg', |
|
235 | A tuple of (gui, backend) where backend is one of ('TkAgg','GTKAgg', | |
236 | 'WXAgg','Qt4Agg','module://ipykernel.pylab.backend_inline'). |
|
236 | 'WXAgg','Qt4Agg','module://ipykernel.pylab.backend_inline'). | |
237 | """ |
|
237 | """ | |
238 |
|
238 | |||
239 | import matplotlib |
|
239 | import matplotlib | |
240 |
|
240 | |||
241 | if gui and gui != 'auto': |
|
241 | if gui and gui != 'auto': | |
242 | # select backend based on requested gui |
|
242 | # select backend based on requested gui | |
243 | backend = backends[gui] |
|
243 | backend = backends[gui] | |
244 | else: |
|
244 | else: | |
245 | # We need to read the backend from the original data structure, *not* |
|
245 | # We need to read the backend from the original data structure, *not* | |
246 | # from mpl.rcParams, since a prior invocation of %matplotlib may have |
|
246 | # from mpl.rcParams, since a prior invocation of %matplotlib may have | |
247 | # overwritten that. |
|
247 | # overwritten that. | |
248 | # WARNING: this assumes matplotlib 1.1 or newer!! |
|
248 | # WARNING: this assumes matplotlib 1.1 or newer!! | |
249 | backend = matplotlib.rcParamsOrig['backend'] |
|
249 | backend = matplotlib.rcParamsOrig['backend'] | |
250 | # In this case, we need to find what the appropriate gui selection call |
|
250 | # In this case, we need to find what the appropriate gui selection call | |
251 | # should be for IPython, so we can activate inputhook accordingly |
|
251 | # should be for IPython, so we can activate inputhook accordingly | |
252 | gui = backend2gui.get(backend, None) |
|
252 | gui = backend2gui.get(backend, None) | |
253 |
|
253 | |||
254 | # If we have already had a gui active, we need it and inline are the |
|
254 | # If we have already had a gui active, we need it and inline are the | |
255 | # ones allowed. |
|
255 | # ones allowed. | |
256 | if gui_select and gui != gui_select: |
|
256 | if gui_select and gui != gui_select: | |
257 | gui = gui_select |
|
257 | gui = gui_select | |
258 | backend = backends[gui] |
|
258 | backend = backends[gui] | |
259 |
|
259 | |||
260 | return gui, backend |
|
260 | return gui, backend | |
261 |
|
261 | |||
262 |
|
262 | |||
263 | def activate_matplotlib(backend): |
|
263 | def activate_matplotlib(backend): | |
264 | """Activate the given backend and set interactive to True.""" |
|
264 | """Activate the given backend and set interactive to True.""" | |
265 |
|
265 | |||
266 | import matplotlib |
|
266 | import matplotlib | |
267 | matplotlib.interactive(True) |
|
267 | matplotlib.interactive(True) | |
268 |
|
268 | |||
269 | # Matplotlib had a bug where even switch_backend could not force |
|
269 | # Matplotlib had a bug where even switch_backend could not force | |
270 | # the rcParam to update. This needs to be set *before* the module |
|
270 | # the rcParam to update. This needs to be set *before* the module | |
271 | # magic of switch_backend(). |
|
271 | # magic of switch_backend(). | |
272 | matplotlib.rcParams['backend'] = backend |
|
272 | matplotlib.rcParams['backend'] = backend | |
273 |
|
273 | |||
274 | import matplotlib.pyplot |
|
274 | import matplotlib.pyplot | |
275 | matplotlib.pyplot.switch_backend(backend) |
|
275 | matplotlib.pyplot.switch_backend(backend) | |
276 |
|
276 | |||
277 | # This must be imported last in the matplotlib series, after |
|
277 | # This must be imported last in the matplotlib series, after | |
278 | # backend/interactivity choices have been made |
|
278 | # backend/interactivity choices have been made | |
279 | import matplotlib.pylab as pylab |
|
279 | import matplotlib.pylab as pylab | |
280 |
|
280 | |||
281 | pylab.show._needmain = False |
|
281 | pylab.show._needmain = False | |
282 | # We need to detect at runtime whether show() is called by the user. |
|
282 | # We need to detect at runtime whether show() is called by the user. | |
283 | # For this, we wrap it into a decorator which adds a 'called' flag. |
|
283 | # For this, we wrap it into a decorator which adds a 'called' flag. | |
284 | pylab.draw_if_interactive = flag_calls(pylab.draw_if_interactive) |
|
284 | pylab.draw_if_interactive = flag_calls(pylab.draw_if_interactive) | |
285 |
|
285 | |||
286 |
|
286 | |||
287 | def import_pylab(user_ns, import_all=True): |
|
287 | def import_pylab(user_ns, import_all=True): | |
288 | """Populate the namespace with pylab-related values. |
|
288 | """Populate the namespace with pylab-related values. | |
289 |
|
289 | |||
290 | Imports matplotlib, pylab, numpy, and everything from pylab and numpy. |
|
290 | Imports matplotlib, pylab, numpy, and everything from pylab and numpy. | |
291 |
|
291 | |||
292 | Also imports a few names from IPython (figsize, display, getfigs) |
|
292 | Also imports a few names from IPython (figsize, display, getfigs) | |
293 |
|
293 | |||
294 | """ |
|
294 | """ | |
295 |
|
295 | |||
296 | # Import numpy as np/pyplot as plt are conventions we're trying to |
|
296 | # Import numpy as np/pyplot as plt are conventions we're trying to | |
297 | # somewhat standardize on. Making them available to users by default |
|
297 | # somewhat standardize on. Making them available to users by default | |
298 | # will greatly help this. |
|
298 | # will greatly help this. | |
299 | s = ("import numpy\n" |
|
299 | s = ("import numpy\n" | |
300 | "import matplotlib\n" |
|
300 | "import matplotlib\n" | |
301 | "from matplotlib import pylab, mlab, pyplot\n" |
|
301 | "from matplotlib import pylab, mlab, pyplot\n" | |
302 | "np = numpy\n" |
|
302 | "np = numpy\n" | |
303 | "plt = pyplot\n" |
|
303 | "plt = pyplot\n" | |
304 | ) |
|
304 | ) | |
305 | exec(s, user_ns) |
|
305 | exec(s, user_ns) | |
306 |
|
306 | |||
307 | if import_all: |
|
307 | if import_all: | |
308 | s = ("from matplotlib.pylab import *\n" |
|
308 | s = ("from matplotlib.pylab import *\n" | |
309 | "from numpy import *\n") |
|
309 | "from numpy import *\n") | |
310 | exec(s, user_ns) |
|
310 | exec(s, user_ns) | |
311 |
|
311 | |||
312 | # IPython symbols to add |
|
312 | # IPython symbols to add | |
313 | user_ns['figsize'] = figsize |
|
313 | user_ns['figsize'] = figsize | |
314 | from IPython.core.display import display |
|
314 | from IPython.core.display import display | |
315 | # Add display and getfigs to the user's namespace |
|
315 | # Add display and getfigs to the user's namespace | |
316 | user_ns['display'] = display |
|
316 | user_ns['display'] = display | |
317 | user_ns['getfigs'] = getfigs |
|
317 | user_ns['getfigs'] = getfigs | |
318 |
|
318 | |||
319 |
|
319 | |||
320 | def configure_inline_support(shell, backend): |
|
320 | def configure_inline_support(shell, backend): | |
321 | """Configure an IPython shell object for matplotlib use. |
|
321 | """Configure an IPython shell object for matplotlib use. | |
322 |
|
322 | |||
323 | Parameters |
|
323 | Parameters | |
324 | ---------- |
|
324 | ---------- | |
325 | shell : InteractiveShell instance |
|
325 | shell : InteractiveShell instance | |
326 |
|
326 | |||
327 | backend : matplotlib backend |
|
327 | backend : matplotlib backend | |
328 | """ |
|
328 | """ | |
329 | # If using our svg payload backend, register the post-execution |
|
329 | # If using our svg payload backend, register the post-execution | |
330 | # function that will pick up the results for display. This can only be |
|
330 | # function that will pick up the results for display. This can only be | |
331 | # done with access to the real shell object. |
|
331 | # done with access to the real shell object. | |
332 |
|
332 | |||
333 | # Note: if we can't load the inline backend, then there's no point |
|
333 | # Note: if we can't load the inline backend, then there's no point | |
334 | # continuing (such as in terminal-only shells in environments without |
|
334 | # continuing (such as in terminal-only shells in environments without | |
335 | # zeromq available). |
|
335 | # zeromq available). | |
336 | try: |
|
336 | try: | |
337 | from ipykernel.pylab.backend_inline import InlineBackend |
|
337 | from ipykernel.pylab.backend_inline import InlineBackend | |
338 | except ImportError: |
|
338 | except ImportError: | |
339 | return |
|
339 | return | |
340 | from matplotlib import pyplot |
|
340 | from matplotlib import pyplot | |
341 |
|
341 | |||
342 | cfg = InlineBackend.instance(parent=shell) |
|
342 | cfg = InlineBackend.instance(parent=shell) | |
343 | cfg.shell = shell |
|
343 | cfg.shell = shell | |
344 | if cfg not in shell.configurables: |
|
344 | if cfg not in shell.configurables: | |
345 | shell.configurables.append(cfg) |
|
345 | shell.configurables.append(cfg) | |
346 |
|
346 | |||
347 | if backend == backends['inline']: |
|
347 | if backend == backends['inline']: | |
348 | from ipykernel.pylab.backend_inline import flush_figures |
|
348 | from ipykernel.pylab.backend_inline import flush_figures | |
349 | shell.events.register('post_execute', flush_figures) |
|
349 | shell.events.register('post_execute', flush_figures) | |
350 |
|
350 | |||
351 | # Save rcParams that will be overwrittern |
|
351 | # Save rcParams that will be overwrittern | |
352 | shell._saved_rcParams = dict() |
|
352 | shell._saved_rcParams = dict() | |
353 | for k in cfg.rc: |
|
353 | for k in cfg.rc: | |
354 | shell._saved_rcParams[k] = pyplot.rcParams[k] |
|
354 | shell._saved_rcParams[k] = pyplot.rcParams[k] | |
355 | # load inline_rc |
|
355 | # load inline_rc | |
356 | pyplot.rcParams.update(cfg.rc) |
|
356 | pyplot.rcParams.update(cfg.rc) | |
|
357 | new_backend_name = "inline" | |||
357 | else: |
|
358 | else: | |
358 | from ipykernel.pylab.backend_inline import flush_figures |
|
359 | from ipykernel.pylab.backend_inline import flush_figures | |
359 | try: |
|
360 | try: | |
360 | shell.events.unregister('post_execute', flush_figures) |
|
361 | shell.events.unregister('post_execute', flush_figures) | |
361 | except ValueError: |
|
362 | except ValueError: | |
362 | pass |
|
363 | pass | |
363 | if hasattr(shell, '_saved_rcParams'): |
|
364 | if hasattr(shell, '_saved_rcParams'): | |
364 | pyplot.rcParams.update(shell._saved_rcParams) |
|
365 | pyplot.rcParams.update(shell._saved_rcParams) | |
365 | del shell._saved_rcParams |
|
366 | del shell._saved_rcParams | |
|
367 | new_backend_name = "other" | |||
366 |
|
368 | |||
|
369 | # only enable the formats once -> don't change the enabled formats (which the user may | |||
|
370 | # has changed) when getting another "%matplotlib inline" call. | |||
|
371 | # See https://github.com/ipython/ipykernel/issues/29 | |||
|
372 | cur_backend = getattr(configure_inline_support, "current_backend", "unset") | |||
|
373 | if new_backend_name != cur_backend: | |||
367 | # Setup the default figure format |
|
374 | # Setup the default figure format | |
368 | select_figure_formats(shell, cfg.figure_formats, **cfg.print_figure_kwargs) |
|
375 | select_figure_formats(shell, cfg.figure_formats, **cfg.print_figure_kwargs) | |
369 |
|
376 | configure_inline_support.current_backend = new_backend_name |
@@ -1,241 +1,261 b'' | |||||
1 | """Tests for pylab tools module. |
|
1 | """Tests for pylab tools module. | |
2 | """ |
|
2 | """ | |
3 | #----------------------------------------------------------------------------- |
|
3 | #----------------------------------------------------------------------------- | |
4 | # Copyright (c) 2011, the IPython Development Team. |
|
4 | # Copyright (c) 2011, the IPython Development Team. | |
5 | # |
|
5 | # | |
6 | # Distributed under the terms of the Modified BSD License. |
|
6 | # Distributed under the terms of the Modified BSD License. | |
7 | # |
|
7 | # | |
8 | # The full license is in the file COPYING.txt, distributed with this software. |
|
8 | # The full license is in the file COPYING.txt, distributed with this software. | |
9 | #----------------------------------------------------------------------------- |
|
9 | #----------------------------------------------------------------------------- | |
10 |
|
10 | |||
11 | #----------------------------------------------------------------------------- |
|
11 | #----------------------------------------------------------------------------- | |
12 | # Imports |
|
12 | # Imports | |
13 | #----------------------------------------------------------------------------- |
|
13 | #----------------------------------------------------------------------------- | |
14 | from __future__ import print_function |
|
14 | from __future__ import print_function | |
15 |
|
15 | |||
16 | from io import UnsupportedOperation, BytesIO |
|
16 | from io import UnsupportedOperation, BytesIO | |
17 |
|
17 | |||
18 | import matplotlib |
|
18 | import matplotlib | |
19 | matplotlib.use('Agg') |
|
19 | matplotlib.use('Agg') | |
20 | from matplotlib.figure import Figure |
|
20 | from matplotlib.figure import Figure | |
21 |
|
21 | |||
22 | from nose import SkipTest |
|
22 | from nose import SkipTest | |
23 | import nose.tools as nt |
|
23 | import nose.tools as nt | |
24 |
|
24 | |||
25 | from matplotlib import pyplot as plt |
|
25 | from matplotlib import pyplot as plt | |
26 | import numpy as np |
|
26 | import numpy as np | |
27 |
|
27 | |||
28 | # Our own imports |
|
28 | # Our own imports | |
29 | from IPython.core.getipython import get_ipython |
|
29 | from IPython.core.getipython import get_ipython | |
30 | from IPython.core.interactiveshell import InteractiveShell |
|
30 | from IPython.core.interactiveshell import InteractiveShell | |
31 | from IPython.core.display import _PNG, _JPEG |
|
31 | from IPython.core.display import _PNG, _JPEG | |
32 | from .. import pylabtools as pt |
|
32 | from .. import pylabtools as pt | |
33 |
|
33 | |||
34 | from IPython.testing import decorators as dec |
|
34 | from IPython.testing import decorators as dec | |
35 |
|
35 | |||
36 | #----------------------------------------------------------------------------- |
|
36 | #----------------------------------------------------------------------------- | |
37 | # Globals and constants |
|
37 | # Globals and constants | |
38 | #----------------------------------------------------------------------------- |
|
38 | #----------------------------------------------------------------------------- | |
39 |
|
39 | |||
40 | #----------------------------------------------------------------------------- |
|
40 | #----------------------------------------------------------------------------- | |
41 | # Local utilities |
|
41 | # Local utilities | |
42 | #----------------------------------------------------------------------------- |
|
42 | #----------------------------------------------------------------------------- | |
43 |
|
43 | |||
44 | #----------------------------------------------------------------------------- |
|
44 | #----------------------------------------------------------------------------- | |
45 | # Classes and functions |
|
45 | # Classes and functions | |
46 | #----------------------------------------------------------------------------- |
|
46 | #----------------------------------------------------------------------------- | |
47 |
|
47 | |||
48 | def test_figure_to_svg(): |
|
48 | def test_figure_to_svg(): | |
49 | # simple empty-figure test |
|
49 | # simple empty-figure test | |
50 | fig = plt.figure() |
|
50 | fig = plt.figure() | |
51 | nt.assert_equal(pt.print_figure(fig, 'svg'), None) |
|
51 | nt.assert_equal(pt.print_figure(fig, 'svg'), None) | |
52 |
|
52 | |||
53 | plt.close('all') |
|
53 | plt.close('all') | |
54 |
|
54 | |||
55 | # simple check for at least svg-looking output |
|
55 | # simple check for at least svg-looking output | |
56 | fig = plt.figure() |
|
56 | fig = plt.figure() | |
57 | ax = fig.add_subplot(1,1,1) |
|
57 | ax = fig.add_subplot(1,1,1) | |
58 | ax.plot([1,2,3]) |
|
58 | ax.plot([1,2,3]) | |
59 | plt.draw() |
|
59 | plt.draw() | |
60 | svg = pt.print_figure(fig, 'svg')[:100].lower() |
|
60 | svg = pt.print_figure(fig, 'svg')[:100].lower() | |
61 | nt.assert_in(u'doctype svg', svg) |
|
61 | nt.assert_in(u'doctype svg', svg) | |
62 |
|
62 | |||
63 | def _check_pil_jpeg_bytes(): |
|
63 | def _check_pil_jpeg_bytes(): | |
64 | """Skip if PIL can't write JPEGs to BytesIO objects""" |
|
64 | """Skip if PIL can't write JPEGs to BytesIO objects""" | |
65 | # PIL's JPEG plugin can't write to BytesIO objects |
|
65 | # PIL's JPEG plugin can't write to BytesIO objects | |
66 | # Pillow fixes this |
|
66 | # Pillow fixes this | |
67 | from PIL import Image |
|
67 | from PIL import Image | |
68 | buf = BytesIO() |
|
68 | buf = BytesIO() | |
69 | img = Image.new("RGB", (4,4)) |
|
69 | img = Image.new("RGB", (4,4)) | |
70 | try: |
|
70 | try: | |
71 | img.save(buf, 'jpeg') |
|
71 | img.save(buf, 'jpeg') | |
72 | except Exception as e: |
|
72 | except Exception as e: | |
73 | ename = e.__class__.__name__ |
|
73 | ename = e.__class__.__name__ | |
74 | raise SkipTest("PIL can't write JPEG to BytesIO: %s: %s" % (ename, e)) |
|
74 | raise SkipTest("PIL can't write JPEG to BytesIO: %s: %s" % (ename, e)) | |
75 |
|
75 | |||
76 | @dec.skip_without("PIL.Image") |
|
76 | @dec.skip_without("PIL.Image") | |
77 | def test_figure_to_jpeg(): |
|
77 | def test_figure_to_jpeg(): | |
78 | _check_pil_jpeg_bytes() |
|
78 | _check_pil_jpeg_bytes() | |
79 | # simple check for at least jpeg-looking output |
|
79 | # simple check for at least jpeg-looking output | |
80 | fig = plt.figure() |
|
80 | fig = plt.figure() | |
81 | ax = fig.add_subplot(1,1,1) |
|
81 | ax = fig.add_subplot(1,1,1) | |
82 | ax.plot([1,2,3]) |
|
82 | ax.plot([1,2,3]) | |
83 | plt.draw() |
|
83 | plt.draw() | |
84 | jpeg = pt.print_figure(fig, 'jpeg', quality=50)[:100].lower() |
|
84 | jpeg = pt.print_figure(fig, 'jpeg', quality=50)[:100].lower() | |
85 | assert jpeg.startswith(_JPEG) |
|
85 | assert jpeg.startswith(_JPEG) | |
86 |
|
86 | |||
87 | def test_retina_figure(): |
|
87 | def test_retina_figure(): | |
88 | fig = plt.figure() |
|
88 | fig = plt.figure() | |
89 | ax = fig.add_subplot(1,1,1) |
|
89 | ax = fig.add_subplot(1,1,1) | |
90 | ax.plot([1,2,3]) |
|
90 | ax.plot([1,2,3]) | |
91 | plt.draw() |
|
91 | plt.draw() | |
92 | png, md = pt.retina_figure(fig) |
|
92 | png, md = pt.retina_figure(fig) | |
93 | assert png.startswith(_PNG) |
|
93 | assert png.startswith(_PNG) | |
94 | nt.assert_in('width', md) |
|
94 | nt.assert_in('width', md) | |
95 | nt.assert_in('height', md) |
|
95 | nt.assert_in('height', md) | |
96 |
|
96 | |||
97 | _fmt_mime_map = { |
|
97 | _fmt_mime_map = { | |
98 | 'png': 'image/png', |
|
98 | 'png': 'image/png', | |
99 | 'jpeg': 'image/jpeg', |
|
99 | 'jpeg': 'image/jpeg', | |
100 | 'pdf': 'application/pdf', |
|
100 | 'pdf': 'application/pdf', | |
101 | 'retina': 'image/png', |
|
101 | 'retina': 'image/png', | |
102 | 'svg': 'image/svg+xml', |
|
102 | 'svg': 'image/svg+xml', | |
103 | } |
|
103 | } | |
104 |
|
104 | |||
105 | def test_select_figure_formats_str(): |
|
105 | def test_select_figure_formats_str(): | |
106 | ip = get_ipython() |
|
106 | ip = get_ipython() | |
107 | for fmt, active_mime in _fmt_mime_map.items(): |
|
107 | for fmt, active_mime in _fmt_mime_map.items(): | |
108 | pt.select_figure_formats(ip, fmt) |
|
108 | pt.select_figure_formats(ip, fmt) | |
109 | for mime, f in ip.display_formatter.formatters.items(): |
|
109 | for mime, f in ip.display_formatter.formatters.items(): | |
110 | if mime == active_mime: |
|
110 | if mime == active_mime: | |
111 | nt.assert_in(Figure, f) |
|
111 | nt.assert_in(Figure, f) | |
112 | else: |
|
112 | else: | |
113 | nt.assert_not_in(Figure, f) |
|
113 | nt.assert_not_in(Figure, f) | |
114 |
|
114 | |||
115 | def test_select_figure_formats_kwargs(): |
|
115 | def test_select_figure_formats_kwargs(): | |
116 | ip = get_ipython() |
|
116 | ip = get_ipython() | |
117 | kwargs = dict(quality=10, bbox_inches='tight') |
|
117 | kwargs = dict(quality=10, bbox_inches='tight') | |
118 | pt.select_figure_formats(ip, 'png', **kwargs) |
|
118 | pt.select_figure_formats(ip, 'png', **kwargs) | |
119 | formatter = ip.display_formatter.formatters['image/png'] |
|
119 | formatter = ip.display_formatter.formatters['image/png'] | |
120 | f = formatter.lookup_by_type(Figure) |
|
120 | f = formatter.lookup_by_type(Figure) | |
121 | cell = f.__closure__[0].cell_contents |
|
121 | cell = f.__closure__[0].cell_contents | |
122 | nt.assert_equal(cell, kwargs) |
|
122 | nt.assert_equal(cell, kwargs) | |
123 |
|
123 | |||
124 | # check that the formatter doesn't raise |
|
124 | # check that the formatter doesn't raise | |
125 | fig = plt.figure() |
|
125 | fig = plt.figure() | |
126 | ax = fig.add_subplot(1,1,1) |
|
126 | ax = fig.add_subplot(1,1,1) | |
127 | ax.plot([1,2,3]) |
|
127 | ax.plot([1,2,3]) | |
128 | plt.draw() |
|
128 | plt.draw() | |
129 | formatter.enabled = True |
|
129 | formatter.enabled = True | |
130 | png = formatter(fig) |
|
130 | png = formatter(fig) | |
131 | assert png.startswith(_PNG) |
|
131 | assert png.startswith(_PNG) | |
132 |
|
132 | |||
133 | def test_select_figure_formats_set(): |
|
133 | def test_select_figure_formats_set(): | |
134 | ip = get_ipython() |
|
134 | ip = get_ipython() | |
135 | for fmts in [ |
|
135 | for fmts in [ | |
136 | {'png', 'svg'}, |
|
136 | {'png', 'svg'}, | |
137 | ['png'], |
|
137 | ['png'], | |
138 | ('jpeg', 'pdf', 'retina'), |
|
138 | ('jpeg', 'pdf', 'retina'), | |
139 | {'svg'}, |
|
139 | {'svg'}, | |
140 | ]: |
|
140 | ]: | |
141 | active_mimes = {_fmt_mime_map[fmt] for fmt in fmts} |
|
141 | active_mimes = {_fmt_mime_map[fmt] for fmt in fmts} | |
142 | pt.select_figure_formats(ip, fmts) |
|
142 | pt.select_figure_formats(ip, fmts) | |
143 | for mime, f in ip.display_formatter.formatters.items(): |
|
143 | for mime, f in ip.display_formatter.formatters.items(): | |
144 | if mime in active_mimes: |
|
144 | if mime in active_mimes: | |
145 | nt.assert_in(Figure, f) |
|
145 | nt.assert_in(Figure, f) | |
146 | else: |
|
146 | else: | |
147 | nt.assert_not_in(Figure, f) |
|
147 | nt.assert_not_in(Figure, f) | |
148 |
|
148 | |||
149 | def test_select_figure_formats_bad(): |
|
149 | def test_select_figure_formats_bad(): | |
150 | ip = get_ipython() |
|
150 | ip = get_ipython() | |
151 | with nt.assert_raises(ValueError): |
|
151 | with nt.assert_raises(ValueError): | |
152 | pt.select_figure_formats(ip, 'foo') |
|
152 | pt.select_figure_formats(ip, 'foo') | |
153 | with nt.assert_raises(ValueError): |
|
153 | with nt.assert_raises(ValueError): | |
154 | pt.select_figure_formats(ip, {'png', 'foo'}) |
|
154 | pt.select_figure_formats(ip, {'png', 'foo'}) | |
155 | with nt.assert_raises(ValueError): |
|
155 | with nt.assert_raises(ValueError): | |
156 | pt.select_figure_formats(ip, ['retina', 'pdf', 'bar', 'bad']) |
|
156 | pt.select_figure_formats(ip, ['retina', 'pdf', 'bar', 'bad']) | |
157 |
|
157 | |||
158 | def test_import_pylab(): |
|
158 | def test_import_pylab(): | |
159 | ns = {} |
|
159 | ns = {} | |
160 | pt.import_pylab(ns, import_all=False) |
|
160 | pt.import_pylab(ns, import_all=False) | |
161 | nt.assert_true('plt' in ns) |
|
161 | nt.assert_true('plt' in ns) | |
162 | nt.assert_equal(ns['np'], np) |
|
162 | nt.assert_equal(ns['np'], np) | |
163 |
|
163 | |||
164 | class TestPylabSwitch(object): |
|
164 | class TestPylabSwitch(object): | |
165 | class Shell(InteractiveShell): |
|
165 | class Shell(InteractiveShell): | |
166 | def enable_gui(self, gui): |
|
166 | def enable_gui(self, gui): | |
167 | pass |
|
167 | pass | |
168 |
|
168 | |||
169 | def setup(self): |
|
169 | def setup(self): | |
170 | import matplotlib |
|
170 | import matplotlib | |
171 | def act_mpl(backend): |
|
171 | def act_mpl(backend): | |
172 | matplotlib.rcParams['backend'] = backend |
|
172 | matplotlib.rcParams['backend'] = backend | |
173 |
|
173 | |||
174 | # Save rcParams since they get modified |
|
174 | # Save rcParams since they get modified | |
175 | self._saved_rcParams = matplotlib.rcParams |
|
175 | self._saved_rcParams = matplotlib.rcParams | |
176 | self._saved_rcParamsOrig = matplotlib.rcParamsOrig |
|
176 | self._saved_rcParamsOrig = matplotlib.rcParamsOrig | |
177 | matplotlib.rcParams = dict(backend='Qt4Agg') |
|
177 | matplotlib.rcParams = dict(backend='Qt4Agg') | |
178 | matplotlib.rcParamsOrig = dict(backend='Qt4Agg') |
|
178 | matplotlib.rcParamsOrig = dict(backend='Qt4Agg') | |
179 |
|
179 | |||
180 | # Mock out functions |
|
180 | # Mock out functions | |
181 | self._save_am = pt.activate_matplotlib |
|
181 | self._save_am = pt.activate_matplotlib | |
182 | pt.activate_matplotlib = act_mpl |
|
182 | pt.activate_matplotlib = act_mpl | |
183 | self._save_ip = pt.import_pylab |
|
183 | self._save_ip = pt.import_pylab | |
184 | pt.import_pylab = lambda *a,**kw:None |
|
184 | pt.import_pylab = lambda *a,**kw:None | |
185 | self._save_cis = pt.configure_inline_support |
|
185 | self._save_cis = pt.configure_inline_support | |
186 | pt.configure_inline_support = lambda *a,**kw:None |
|
186 | pt.configure_inline_support = lambda *a,**kw:None | |
187 |
|
187 | |||
188 | def teardown(self): |
|
188 | def teardown(self): | |
189 | pt.activate_matplotlib = self._save_am |
|
189 | pt.activate_matplotlib = self._save_am | |
190 | pt.import_pylab = self._save_ip |
|
190 | pt.import_pylab = self._save_ip | |
191 | pt.configure_inline_support = self._save_cis |
|
191 | pt.configure_inline_support = self._save_cis | |
192 | import matplotlib |
|
192 | import matplotlib | |
193 | matplotlib.rcParams = self._saved_rcParams |
|
193 | matplotlib.rcParams = self._saved_rcParams | |
194 | matplotlib.rcParamsOrig = self._saved_rcParamsOrig |
|
194 | matplotlib.rcParamsOrig = self._saved_rcParamsOrig | |
195 |
|
195 | |||
196 | def test_qt(self): |
|
196 | def test_qt(self): | |
197 | s = self.Shell() |
|
197 | s = self.Shell() | |
198 | gui, backend = s.enable_matplotlib(None) |
|
198 | gui, backend = s.enable_matplotlib(None) | |
199 | nt.assert_equal(gui, 'qt') |
|
199 | nt.assert_equal(gui, 'qt') | |
200 | nt.assert_equal(s.pylab_gui_select, 'qt') |
|
200 | nt.assert_equal(s.pylab_gui_select, 'qt') | |
201 |
|
201 | |||
202 | gui, backend = s.enable_matplotlib('inline') |
|
202 | gui, backend = s.enable_matplotlib('inline') | |
203 | nt.assert_equal(gui, 'inline') |
|
203 | nt.assert_equal(gui, 'inline') | |
204 | nt.assert_equal(s.pylab_gui_select, 'qt') |
|
204 | nt.assert_equal(s.pylab_gui_select, 'qt') | |
205 |
|
205 | |||
206 | gui, backend = s.enable_matplotlib('qt') |
|
206 | gui, backend = s.enable_matplotlib('qt') | |
207 | nt.assert_equal(gui, 'qt') |
|
207 | nt.assert_equal(gui, 'qt') | |
208 | nt.assert_equal(s.pylab_gui_select, 'qt') |
|
208 | nt.assert_equal(s.pylab_gui_select, 'qt') | |
209 |
|
209 | |||
210 | gui, backend = s.enable_matplotlib('inline') |
|
210 | gui, backend = s.enable_matplotlib('inline') | |
211 | nt.assert_equal(gui, 'inline') |
|
211 | nt.assert_equal(gui, 'inline') | |
212 | nt.assert_equal(s.pylab_gui_select, 'qt') |
|
212 | nt.assert_equal(s.pylab_gui_select, 'qt') | |
213 |
|
213 | |||
214 | gui, backend = s.enable_matplotlib() |
|
214 | gui, backend = s.enable_matplotlib() | |
215 | nt.assert_equal(gui, 'qt') |
|
215 | nt.assert_equal(gui, 'qt') | |
216 | nt.assert_equal(s.pylab_gui_select, 'qt') |
|
216 | nt.assert_equal(s.pylab_gui_select, 'qt') | |
217 |
|
217 | |||
218 | def test_inline(self): |
|
218 | def test_inline(self): | |
219 | s = self.Shell() |
|
219 | s = self.Shell() | |
220 | gui, backend = s.enable_matplotlib('inline') |
|
220 | gui, backend = s.enable_matplotlib('inline') | |
221 | nt.assert_equal(gui, 'inline') |
|
221 | nt.assert_equal(gui, 'inline') | |
222 | nt.assert_equal(s.pylab_gui_select, None) |
|
222 | nt.assert_equal(s.pylab_gui_select, None) | |
223 |
|
223 | |||
224 | gui, backend = s.enable_matplotlib('inline') |
|
224 | gui, backend = s.enable_matplotlib('inline') | |
225 | nt.assert_equal(gui, 'inline') |
|
225 | nt.assert_equal(gui, 'inline') | |
226 | nt.assert_equal(s.pylab_gui_select, None) |
|
226 | nt.assert_equal(s.pylab_gui_select, None) | |
227 |
|
227 | |||
228 | gui, backend = s.enable_matplotlib('qt') |
|
228 | gui, backend = s.enable_matplotlib('qt') | |
229 | nt.assert_equal(gui, 'qt') |
|
229 | nt.assert_equal(gui, 'qt') | |
230 | nt.assert_equal(s.pylab_gui_select, 'qt') |
|
230 | nt.assert_equal(s.pylab_gui_select, 'qt') | |
231 |
|
231 | |||
|
232 | def test_inline_twice(self): | |||
|
233 | "Using '%matplotlib inline' twice should not reset formatters" | |||
|
234 | ||||
|
235 | ip = get_ipython() | |||
|
236 | gui, backend = ip.enable_matplotlib('inline') | |||
|
237 | nt.assert_equal(gui, 'inline') | |||
|
238 | ||||
|
239 | fmts = {'png'} | |||
|
240 | active_mimes = {_fmt_mime_map[fmt] for fmt in fmts} | |||
|
241 | pt.select_figure_formats(ip, fmts) | |||
|
242 | ||||
|
243 | gui, backend = ip.enable_matplotlib('inline') | |||
|
244 | nt.assert_equal(gui, 'inline') | |||
|
245 | ||||
|
246 | for mime, f in ip.display_formatter.formatters.items(): | |||
|
247 | if mime in active_mimes: | |||
|
248 | nt.assert_in(Figure, f) | |||
|
249 | else: | |||
|
250 | nt.assert_not_in(Figure, f) | |||
|
251 | ||||
232 | def test_qt_gtk(self): |
|
252 | def test_qt_gtk(self): | |
233 | s = self.Shell() |
|
253 | s = self.Shell() | |
234 | gui, backend = s.enable_matplotlib('qt') |
|
254 | gui, backend = s.enable_matplotlib('qt') | |
235 | nt.assert_equal(gui, 'qt') |
|
255 | nt.assert_equal(gui, 'qt') | |
236 | nt.assert_equal(s.pylab_gui_select, 'qt') |
|
256 | nt.assert_equal(s.pylab_gui_select, 'qt') | |
237 |
|
257 | |||
238 | gui, backend = s.enable_matplotlib('gtk') |
|
258 | gui, backend = s.enable_matplotlib('gtk') | |
239 | nt.assert_equal(gui, 'qt') |
|
259 | nt.assert_equal(gui, 'qt') | |
240 | nt.assert_equal(s.pylab_gui_select, 'qt') |
|
260 | nt.assert_equal(s.pylab_gui_select, 'qt') | |
241 |
|
261 |
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