192 lines
5.8 KiB
Python
192 lines
5.8 KiB
Python
"""
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Matplotlib GUI progressbar decorator for iterators.
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Usage:
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>>> from tqdm.gui import trange, tqdm
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>>> for i in trange(10):
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... ...
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"""
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# future division is important to divide integers and get as
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# a result precise floating numbers (instead of truncated int)
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from __future__ import absolute_import, division
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import re
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from warnings import warn
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# to inherit from the tqdm class
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from .std import TqdmExperimentalWarning
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from .std import tqdm as std_tqdm
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# import compatibility functions and utilities
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from .utils import _range
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__author__ = {"github.com/": ["casperdcl", "lrq3000"]}
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__all__ = ['tqdm_gui', 'tgrange', 'tqdm', 'trange']
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class tqdm_gui(std_tqdm): # pragma: no cover
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"""Experimental Matplotlib GUI version of tqdm!"""
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# TODO: @classmethod: write() on GUI?
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def __init__(self, *args, **kwargs):
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from collections import deque
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import matplotlib as mpl
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import matplotlib.pyplot as plt
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kwargs = kwargs.copy()
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kwargs['gui'] = True
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colour = kwargs.pop('colour', 'g')
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super(tqdm_gui, self).__init__(*args, **kwargs)
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if self.disable:
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return
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warn("GUI is experimental/alpha", TqdmExperimentalWarning, stacklevel=2)
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self.mpl = mpl
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self.plt = plt
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# Remember if external environment uses toolbars
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self.toolbar = self.mpl.rcParams['toolbar']
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self.mpl.rcParams['toolbar'] = 'None'
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self.mininterval = max(self.mininterval, 0.5)
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self.fig, ax = plt.subplots(figsize=(9, 2.2))
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# self.fig.subplots_adjust(bottom=0.2)
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total = self.__len__() # avoids TypeError on None #971
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if total is not None:
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self.xdata = []
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self.ydata = []
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self.zdata = []
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else:
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self.xdata = deque([])
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self.ydata = deque([])
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self.zdata = deque([])
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self.line1, = ax.plot(self.xdata, self.ydata, color='b')
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self.line2, = ax.plot(self.xdata, self.zdata, color='k')
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ax.set_ylim(0, 0.001)
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if total is not None:
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ax.set_xlim(0, 100)
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ax.set_xlabel("percent")
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self.fig.legend((self.line1, self.line2), ("cur", "est"),
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loc='center right')
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# progressbar
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self.hspan = plt.axhspan(0, 0.001, xmin=0, xmax=0, color=colour)
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else:
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# ax.set_xlim(-60, 0)
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ax.set_xlim(0, 60)
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ax.invert_xaxis()
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ax.set_xlabel("seconds")
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ax.legend(("cur", "est"), loc='lower left')
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ax.grid()
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# ax.set_xlabel('seconds')
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ax.set_ylabel((self.unit if self.unit else "it") + "/s")
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if self.unit_scale:
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plt.ticklabel_format(style='sci', axis='y', scilimits=(0, 0))
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ax.yaxis.get_offset_text().set_x(-0.15)
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# Remember if external environment is interactive
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self.wasion = plt.isinteractive()
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plt.ion()
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self.ax = ax
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def close(self):
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if self.disable:
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return
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self.disable = True
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with self.get_lock():
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self._instances.remove(self)
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# Restore toolbars
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self.mpl.rcParams['toolbar'] = self.toolbar
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# Return to non-interactive mode
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if not self.wasion:
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self.plt.ioff()
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if self.leave:
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self.display()
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else:
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self.plt.close(self.fig)
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def clear(self, *_, **__):
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pass
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def display(self, *_, **__):
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n = self.n
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cur_t = self._time()
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elapsed = cur_t - self.start_t
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delta_it = n - self.last_print_n
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delta_t = cur_t - self.last_print_t
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# Inline due to multiple calls
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total = self.total
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xdata = self.xdata
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ydata = self.ydata
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zdata = self.zdata
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ax = self.ax
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line1 = self.line1
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line2 = self.line2
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# instantaneous rate
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y = delta_it / delta_t
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# overall rate
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z = n / elapsed
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# update line data
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xdata.append(n * 100.0 / total if total else cur_t)
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ydata.append(y)
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zdata.append(z)
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# Discard old values
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# xmin, xmax = ax.get_xlim()
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# if (not total) and elapsed > xmin * 1.1:
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if (not total) and elapsed > 66:
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xdata.popleft()
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ydata.popleft()
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zdata.popleft()
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ymin, ymax = ax.get_ylim()
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if y > ymax or z > ymax:
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ymax = 1.1 * y
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ax.set_ylim(ymin, ymax)
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ax.figure.canvas.draw()
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if total:
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line1.set_data(xdata, ydata)
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line2.set_data(xdata, zdata)
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try:
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poly_lims = self.hspan.get_xy()
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except AttributeError:
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self.hspan = self.plt.axhspan(0, 0.001, xmin=0, xmax=0, color='g')
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poly_lims = self.hspan.get_xy()
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poly_lims[0, 1] = ymin
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poly_lims[1, 1] = ymax
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poly_lims[2] = [n / total, ymax]
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poly_lims[3] = [poly_lims[2, 0], ymin]
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if len(poly_lims) > 4:
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poly_lims[4, 1] = ymin
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self.hspan.set_xy(poly_lims)
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else:
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t_ago = [cur_t - i for i in xdata]
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line1.set_data(t_ago, ydata)
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line2.set_data(t_ago, zdata)
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d = self.format_dict
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# remove {bar}
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d['bar_format'] = (d['bar_format'] or "{l_bar}<bar/>{r_bar}").replace(
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"{bar}", "<bar/>")
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msg = self.format_meter(**d)
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if '<bar/>' in msg:
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msg = "".join(re.split(r'\|?<bar/>\|?', msg, 1))
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ax.set_title(msg, fontname="DejaVu Sans Mono", fontsize=11)
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self.plt.pause(1e-9)
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def tgrange(*args, **kwargs):
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"""
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A shortcut for `tqdm.gui.tqdm(xrange(*args), **kwargs)`.
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On Python3+, `range` is used instead of `xrange`.
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"""
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return tqdm_gui(_range(*args), **kwargs)
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# Aliases
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tqdm = tqdm_gui
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trange = tgrange
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