172 lines
5.5 KiB
Python
172 lines
5.5 KiB
Python
import matplotlib as mpl
|
|
from matplotlib import cbook
|
|
from matplotlib._pylab_helpers import Gcf
|
|
from matplotlib.backends import _macosx
|
|
from matplotlib.backends.backend_agg import FigureCanvasAgg
|
|
from matplotlib.backend_bases import (
|
|
_Backend, FigureCanvasBase, FigureManagerBase, NavigationToolbar2,
|
|
TimerBase)
|
|
from matplotlib.figure import Figure
|
|
from matplotlib.widgets import SubplotTool
|
|
|
|
|
|
########################################################################
|
|
#
|
|
# The following functions and classes are for pylab and implement
|
|
# window/figure managers, etc...
|
|
#
|
|
########################################################################
|
|
|
|
|
|
class TimerMac(_macosx.Timer, TimerBase):
|
|
"""Subclass of `.TimerBase` using CFRunLoop timer events."""
|
|
# completely implemented at the C-level (in _macosx.Timer)
|
|
|
|
|
|
class FigureCanvasMac(_macosx.FigureCanvas, FigureCanvasAgg):
|
|
"""
|
|
The canvas the figure renders into. Calls the draw and print fig
|
|
methods, creates the renderers, etc...
|
|
|
|
Events such as button presses, mouse movements, and key presses
|
|
are handled in the C code and the base class methods
|
|
button_press_event, button_release_event, motion_notify_event,
|
|
key_press_event, and key_release_event are called from there.
|
|
|
|
Attributes
|
|
----------
|
|
figure : `matplotlib.figure.Figure`
|
|
A high-level Figure instance
|
|
"""
|
|
|
|
required_interactive_framework = "macosx"
|
|
_timer_cls = TimerMac
|
|
|
|
def __init__(self, figure):
|
|
FigureCanvasBase.__init__(self, figure)
|
|
width, height = self.get_width_height()
|
|
_macosx.FigureCanvas.__init__(self, width, height)
|
|
self._dpi_ratio = 1.0
|
|
|
|
def _set_device_scale(self, value):
|
|
if self._dpi_ratio != value:
|
|
# Need the new value in place before setting figure.dpi, which
|
|
# will trigger a resize
|
|
self._dpi_ratio, old_value = value, self._dpi_ratio
|
|
self.figure.dpi = self.figure.dpi / old_value * self._dpi_ratio
|
|
|
|
def _draw(self):
|
|
renderer = self.get_renderer(cleared=self.figure.stale)
|
|
if self.figure.stale:
|
|
self.figure.draw(renderer)
|
|
return renderer
|
|
|
|
def draw(self):
|
|
# docstring inherited
|
|
self.draw_idle()
|
|
self.flush_events()
|
|
|
|
# draw_idle is provided by _macosx.FigureCanvas
|
|
|
|
@cbook.deprecated("3.2", alternative="draw_idle()")
|
|
def invalidate(self):
|
|
return self.draw_idle()
|
|
|
|
def blit(self, bbox=None):
|
|
self.draw_idle()
|
|
|
|
def resize(self, width, height):
|
|
dpi = self.figure.dpi
|
|
width /= dpi
|
|
height /= dpi
|
|
self.figure.set_size_inches(width * self._dpi_ratio,
|
|
height * self._dpi_ratio,
|
|
forward=False)
|
|
FigureCanvasBase.resize_event(self)
|
|
self.draw_idle()
|
|
|
|
|
|
class FigureManagerMac(_macosx.FigureManager, FigureManagerBase):
|
|
"""
|
|
Wrap everything up into a window for the pylab interface
|
|
"""
|
|
def __init__(self, canvas, num):
|
|
FigureManagerBase.__init__(self, canvas, num)
|
|
title = "Figure %d" % num
|
|
_macosx.FigureManager.__init__(self, canvas, title)
|
|
if mpl.rcParams['toolbar'] == 'toolbar2':
|
|
self.toolbar = NavigationToolbar2Mac(canvas)
|
|
else:
|
|
self.toolbar = None
|
|
if self.toolbar is not None:
|
|
self.toolbar.update()
|
|
|
|
if mpl.is_interactive():
|
|
self.show()
|
|
self.canvas.draw_idle()
|
|
|
|
def close(self):
|
|
Gcf.destroy(self)
|
|
|
|
|
|
class NavigationToolbar2Mac(_macosx.NavigationToolbar2, NavigationToolbar2):
|
|
|
|
def __init__(self, canvas):
|
|
self.canvas = canvas # Needed by the _macosx __init__.
|
|
data_path = cbook._get_data_path('images')
|
|
_, tooltips, image_names, _ = zip(*NavigationToolbar2.toolitems)
|
|
_macosx.NavigationToolbar2.__init__(
|
|
self,
|
|
tuple(str(data_path / image_name) + ".pdf"
|
|
for image_name in image_names if image_name is not None),
|
|
tuple(tooltip for tooltip in tooltips if tooltip is not None))
|
|
NavigationToolbar2.__init__(self, canvas)
|
|
|
|
def draw_rubberband(self, event, x0, y0, x1, y1):
|
|
self.canvas.set_rubberband(int(x0), int(y0), int(x1), int(y1))
|
|
|
|
def release_zoom(self, event):
|
|
super().release_zoom(event)
|
|
self.canvas.remove_rubberband()
|
|
|
|
def set_cursor(self, cursor):
|
|
_macosx.set_cursor(cursor)
|
|
|
|
def save_figure(self, *args):
|
|
filename = _macosx.choose_save_file('Save the figure',
|
|
self.canvas.get_default_filename())
|
|
if filename is None: # Cancel
|
|
return
|
|
self.canvas.figure.savefig(filename)
|
|
|
|
def prepare_configure_subplots(self):
|
|
toolfig = Figure(figsize=(6, 3))
|
|
canvas = FigureCanvasMac(toolfig)
|
|
toolfig.subplots_adjust(top=0.9)
|
|
# Need to keep a reference to the tool.
|
|
_tool = SubplotTool(self.canvas.figure, toolfig)
|
|
return canvas
|
|
|
|
def set_message(self, message):
|
|
_macosx.NavigationToolbar2.set_message(self, message.encode('utf-8'))
|
|
|
|
|
|
########################################################################
|
|
#
|
|
# Now just provide the standard names that backend.__init__ is expecting
|
|
#
|
|
########################################################################
|
|
|
|
@_Backend.export
|
|
class _BackendMac(_Backend):
|
|
FigureCanvas = FigureCanvasMac
|
|
FigureManager = FigureManagerMac
|
|
|
|
@staticmethod
|
|
def trigger_manager_draw(manager):
|
|
manager.canvas.draw_idle()
|
|
|
|
@staticmethod
|
|
def mainloop():
|
|
_macosx.show()
|