1147 lines
35 KiB
Python
1147 lines
35 KiB
Python
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"""
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Abstract base classes define the primitives for Tools.
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These tools are used by `matplotlib.backend_managers.ToolManager`
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:class:`ToolBase`
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Simple stateless tool
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:class:`ToolToggleBase`
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Tool that has two states, only one Toggle tool can be
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active at any given time for the same
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`matplotlib.backend_managers.ToolManager`
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"""
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from enum import IntEnum
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import logging
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import re
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import time
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from types import SimpleNamespace
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from weakref import WeakKeyDictionary
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import numpy as np
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from matplotlib import rcParams
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from matplotlib._pylab_helpers import Gcf
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import matplotlib.cbook as cbook
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_log = logging.getLogger(__name__)
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class Cursors(IntEnum): # Must subclass int for the macOS backend.
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"""Backend-independent cursor types."""
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HAND, POINTER, SELECT_REGION, MOVE, WAIT = range(5)
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cursors = Cursors # Backcompat.
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# Views positions tool
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_views_positions = 'viewpos'
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class ToolBase:
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"""
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Base tool class
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A base tool, only implements `trigger` method or not method at all.
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The tool is instantiated by `matplotlib.backend_managers.ToolManager`
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Attributes
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----------
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toolmanager : `matplotlib.backend_managers.ToolManager`
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ToolManager that controls this Tool
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figure : `FigureCanvas`
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Figure instance that is affected by this Tool
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name : str
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Used as **Id** of the tool, has to be unique among tools of the same
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ToolManager
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"""
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default_keymap = None
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"""
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Keymap to associate with this tool
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**String**: List of comma separated keys that will be used to call this
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tool when the keypress event of *self.figure.canvas* is emitted
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"""
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description = None
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"""
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Description of the Tool
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**String**: If the Tool is included in the Toolbar this text is used
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as a Tooltip
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"""
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image = None
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"""
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Filename of the image
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**String**: Filename of the image to use in the toolbar. If None, the
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*name* is used as a label in the toolbar button
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"""
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def __init__(self, toolmanager, name):
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cbook._warn_external(
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'The new Tool classes introduced in v1.5 are experimental; their '
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'API (including names) will likely change in future versions.')
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self._name = name
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self._toolmanager = toolmanager
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self._figure = None
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@property
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def figure(self):
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return self._figure
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@figure.setter
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def figure(self, figure):
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self.set_figure(figure)
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@property
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def canvas(self):
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if not self._figure:
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return None
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return self._figure.canvas
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@property
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def toolmanager(self):
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return self._toolmanager
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def _make_classic_style_pseudo_toolbar(self):
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"""
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Return a placeholder object with a single `canvas` attribute.
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This is useful to reuse the implementations of tools already provided
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by the classic Toolbars.
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"""
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return SimpleNamespace(canvas=self.canvas)
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def set_figure(self, figure):
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"""
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Assign a figure to the tool
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Parameters
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----------
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figure : `Figure`
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"""
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self._figure = figure
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def trigger(self, sender, event, data=None):
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"""
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Called when this tool gets used
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This method is called by
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`matplotlib.backend_managers.ToolManager.trigger_tool`
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Parameters
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----------
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event : `Event`
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The Canvas event that caused this tool to be called
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sender : object
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Object that requested the tool to be triggered
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data : object
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Extra data
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"""
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pass
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@property
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def name(self):
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"""Tool Id"""
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return self._name
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def destroy(self):
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"""
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Destroy the tool
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This method is called when the tool is removed by
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`matplotlib.backend_managers.ToolManager.remove_tool`
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"""
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pass
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class ToolToggleBase(ToolBase):
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"""
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Toggleable tool
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Every time it is triggered, it switches between enable and disable
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Parameters
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----------
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``*args``
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Variable length argument to be used by the Tool
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``**kwargs``
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`toggled` if present and True, sets the initial state of the Tool
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Arbitrary keyword arguments to be consumed by the Tool
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"""
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radio_group = None
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"""Attribute to group 'radio' like tools (mutually exclusive)
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**String** that identifies the group or **None** if not belonging to a
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group
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"""
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cursor = None
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"""Cursor to use when the tool is active"""
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default_toggled = False
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"""Default of toggled state"""
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def __init__(self, *args, **kwargs):
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self._toggled = kwargs.pop('toggled', self.default_toggled)
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ToolBase.__init__(self, *args, **kwargs)
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def trigger(self, sender, event, data=None):
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"""Calls `enable` or `disable` based on `toggled` value"""
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if self._toggled:
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self.disable(event)
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else:
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self.enable(event)
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self._toggled = not self._toggled
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def enable(self, event=None):
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"""
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Enable the toggle tool
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`trigger` calls this method when `toggled` is False
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"""
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pass
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def disable(self, event=None):
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"""
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Disable the toggle tool
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`trigger` call this method when `toggled` is True.
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This can happen in different circumstances
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* Click on the toolbar tool button
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* Call to `matplotlib.backend_managers.ToolManager.trigger_tool`
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* Another `ToolToggleBase` derived tool is triggered
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(from the same `ToolManager`)
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"""
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pass
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@property
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def toggled(self):
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"""State of the toggled tool"""
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return self._toggled
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def set_figure(self, figure):
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toggled = self.toggled
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if toggled:
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if self.figure:
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self.trigger(self, None)
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else:
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# if no figure the internal state is not changed
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# we change it here so next call to trigger will change it back
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self._toggled = False
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ToolBase.set_figure(self, figure)
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if toggled:
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if figure:
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self.trigger(self, None)
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else:
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# if there is no figure, trigger won't change the internal
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# state we change it back
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self._toggled = True
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class SetCursorBase(ToolBase):
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"""
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Change to the current cursor while inaxes
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This tool, keeps track of all `ToolToggleBase` derived tools, and calls
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set_cursor when a tool gets triggered
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"""
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def __init__(self, *args, **kwargs):
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ToolBase.__init__(self, *args, **kwargs)
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self._idDrag = None
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self._cursor = None
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self._default_cursor = cursors.POINTER
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self._last_cursor = self._default_cursor
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self.toolmanager.toolmanager_connect('tool_added_event',
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self._add_tool_cbk)
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# process current tools
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for tool in self.toolmanager.tools.values():
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self._add_tool(tool)
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def set_figure(self, figure):
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if self._idDrag:
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self.canvas.mpl_disconnect(self._idDrag)
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ToolBase.set_figure(self, figure)
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if figure:
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self._idDrag = self.canvas.mpl_connect(
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'motion_notify_event', self._set_cursor_cbk)
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def _tool_trigger_cbk(self, event):
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if event.tool.toggled:
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self._cursor = event.tool.cursor
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else:
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self._cursor = None
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self._set_cursor_cbk(event.canvasevent)
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def _add_tool(self, tool):
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"""Set the cursor when the tool is triggered."""
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if getattr(tool, 'cursor', None) is not None:
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self.toolmanager.toolmanager_connect('tool_trigger_%s' % tool.name,
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self._tool_trigger_cbk)
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def _add_tool_cbk(self, event):
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"""Process every newly added tool."""
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if event.tool is self:
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return
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self._add_tool(event.tool)
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def _set_cursor_cbk(self, event):
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if not event:
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return
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if not getattr(event, 'inaxes', False) or not self._cursor:
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if self._last_cursor != self._default_cursor:
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self.set_cursor(self._default_cursor)
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self._last_cursor = self._default_cursor
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elif self._cursor:
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cursor = self._cursor
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if cursor and self._last_cursor != cursor:
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self.set_cursor(cursor)
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self._last_cursor = cursor
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def set_cursor(self, cursor):
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"""
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Set the cursor
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This method has to be implemented per backend
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"""
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raise NotImplementedError
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class ToolCursorPosition(ToolBase):
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"""
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Send message with the current pointer position
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This tool runs in the background reporting the position of the cursor
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"""
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def __init__(self, *args, **kwargs):
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self._idDrag = None
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ToolBase.__init__(self, *args, **kwargs)
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def set_figure(self, figure):
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if self._idDrag:
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self.canvas.mpl_disconnect(self._idDrag)
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ToolBase.set_figure(self, figure)
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if figure:
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self._idDrag = self.canvas.mpl_connect(
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'motion_notify_event', self.send_message)
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def send_message(self, event):
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"""Call `matplotlib.backend_managers.ToolManager.message_event`"""
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if self.toolmanager.messagelock.locked():
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return
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message = ' '
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if event.inaxes and event.inaxes.get_navigate():
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try:
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s = event.inaxes.format_coord(event.xdata, event.ydata)
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except (ValueError, OverflowError):
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pass
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else:
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artists = [a for a in event.inaxes._mouseover_set
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if a.contains(event) and a.get_visible()]
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if artists:
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a = cbook._topmost_artist(artists)
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if a is not event.inaxes.patch:
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data = a.get_cursor_data(event)
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if data is not None:
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data_str = a.format_cursor_data(data)
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if data_str is not None:
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s = s + ' ' + data_str
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message = s
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self.toolmanager.message_event(message, self)
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class RubberbandBase(ToolBase):
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"""Draw and remove rubberband"""
|
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def trigger(self, sender, event, data):
|
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"""Call `draw_rubberband` or `remove_rubberband` based on data"""
|
||
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if not self.figure.canvas.widgetlock.available(sender):
|
||
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return
|
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if data is not None:
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||
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self.draw_rubberband(*data)
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else:
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self.remove_rubberband()
|
||
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|
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||
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def draw_rubberband(self, *data):
|
||
|
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"""
|
||
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Draw rubberband
|
||
|
|
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||
|
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This method must get implemented per backend
|
||
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|
"""
|
||
|
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raise NotImplementedError
|
||
|
|
|
||
|
|
def remove_rubberband(self):
|
||
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"""
|
||
|
|
Remove rubberband
|
||
|
|
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||
|
|
This method should get implemented per backend
|
||
|
|
"""
|
||
|
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pass
|
||
|
|
|
||
|
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||
|
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class ToolQuit(ToolBase):
|
||
|
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"""Tool to call the figure manager destroy method"""
|
||
|
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||
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description = 'Quit the figure'
|
||
|
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default_keymap = rcParams['keymap.quit']
|
||
|
|
|
||
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def trigger(self, sender, event, data=None):
|
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Gcf.destroy_fig(self.figure)
|
||
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||
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||
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class ToolQuitAll(ToolBase):
|
||
|
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"""Tool to call the figure manager destroy method"""
|
||
|
|
|
||
|
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description = 'Quit all figures'
|
||
|
|
default_keymap = rcParams['keymap.quit_all']
|
||
|
|
|
||
|
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def trigger(self, sender, event, data=None):
|
||
|
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Gcf.destroy_all()
|
||
|
|
|
||
|
|
|
||
|
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class ToolEnableAllNavigation(ToolBase):
|
||
|
|
"""Tool to enable all axes for toolmanager interaction"""
|
||
|
|
|
||
|
|
description = 'Enable all axes toolmanager'
|
||
|
|
default_keymap = rcParams['keymap.all_axes']
|
||
|
|
|
||
|
|
def trigger(self, sender, event, data=None):
|
||
|
|
if event.inaxes is None:
|
||
|
|
return
|
||
|
|
|
||
|
|
for a in self.figure.get_axes():
|
||
|
|
if (event.x is not None and event.y is not None
|
||
|
|
and a.in_axes(event)):
|
||
|
|
a.set_navigate(True)
|
||
|
|
|
||
|
|
|
||
|
|
class ToolEnableNavigation(ToolBase):
|
||
|
|
"""Tool to enable a specific axes for toolmanager interaction"""
|
||
|
|
|
||
|
|
description = 'Enable one axes toolmanager'
|
||
|
|
default_keymap = (1, 2, 3, 4, 5, 6, 7, 8, 9)
|
||
|
|
|
||
|
|
def trigger(self, sender, event, data=None):
|
||
|
|
if event.inaxes is None:
|
||
|
|
return
|
||
|
|
|
||
|
|
n = int(event.key) - 1
|
||
|
|
if n < len(self.figure.get_axes()):
|
||
|
|
for i, a in enumerate(self.figure.get_axes()):
|
||
|
|
if (event.x is not None and event.y is not None
|
||
|
|
and a.in_axes(event)):
|
||
|
|
a.set_navigate(i == n)
|
||
|
|
|
||
|
|
|
||
|
|
class _ToolGridBase(ToolBase):
|
||
|
|
"""Common functionality between ToolGrid and ToolMinorGrid."""
|
||
|
|
|
||
|
|
_cycle = [(False, False), (True, False), (True, True), (False, True)]
|
||
|
|
|
||
|
|
def trigger(self, sender, event, data=None):
|
||
|
|
ax = event.inaxes
|
||
|
|
if ax is None:
|
||
|
|
return
|
||
|
|
try:
|
||
|
|
x_state, x_which, y_state, y_which = self._get_next_grid_states(ax)
|
||
|
|
except ValueError:
|
||
|
|
pass
|
||
|
|
else:
|
||
|
|
ax.grid(x_state, which=x_which, axis="x")
|
||
|
|
ax.grid(y_state, which=y_which, axis="y")
|
||
|
|
ax.figure.canvas.draw_idle()
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
def _get_uniform_grid_state(ticks):
|
||
|
|
"""
|
||
|
|
Check whether all grid lines are in the same visibility state.
|
||
|
|
|
||
|
|
Returns True/False if all grid lines are on or off, None if they are
|
||
|
|
not all in the same state.
|
||
|
|
"""
|
||
|
|
if all(tick.gridline.get_visible() for tick in ticks):
|
||
|
|
return True
|
||
|
|
elif not any(tick.gridline.get_visible() for tick in ticks):
|
||
|
|
return False
|
||
|
|
else:
|
||
|
|
return None
|
||
|
|
|
||
|
|
|
||
|
|
class ToolGrid(_ToolGridBase):
|
||
|
|
"""Tool to toggle the major grids of the figure"""
|
||
|
|
|
||
|
|
description = 'Toggle major grids'
|
||
|
|
default_keymap = rcParams['keymap.grid']
|
||
|
|
|
||
|
|
def _get_next_grid_states(self, ax):
|
||
|
|
if None in map(self._get_uniform_grid_state,
|
||
|
|
[ax.xaxis.minorTicks, ax.yaxis.minorTicks]):
|
||
|
|
# Bail out if minor grids are not in a uniform state.
|
||
|
|
raise ValueError
|
||
|
|
x_state, y_state = map(self._get_uniform_grid_state,
|
||
|
|
[ax.xaxis.majorTicks, ax.yaxis.majorTicks])
|
||
|
|
cycle = self._cycle
|
||
|
|
# Bail out (via ValueError) if major grids are not in a uniform state.
|
||
|
|
x_state, y_state = (
|
||
|
|
cycle[(cycle.index((x_state, y_state)) + 1) % len(cycle)])
|
||
|
|
return (x_state, "major" if x_state else "both",
|
||
|
|
y_state, "major" if y_state else "both")
|
||
|
|
|
||
|
|
|
||
|
|
class ToolMinorGrid(_ToolGridBase):
|
||
|
|
"""Tool to toggle the major and minor grids of the figure"""
|
||
|
|
|
||
|
|
description = 'Toggle major and minor grids'
|
||
|
|
default_keymap = rcParams['keymap.grid_minor']
|
||
|
|
|
||
|
|
def _get_next_grid_states(self, ax):
|
||
|
|
if None in map(self._get_uniform_grid_state,
|
||
|
|
[ax.xaxis.majorTicks, ax.yaxis.majorTicks]):
|
||
|
|
# Bail out if major grids are not in a uniform state.
|
||
|
|
raise ValueError
|
||
|
|
x_state, y_state = map(self._get_uniform_grid_state,
|
||
|
|
[ax.xaxis.minorTicks, ax.yaxis.minorTicks])
|
||
|
|
cycle = self._cycle
|
||
|
|
# Bail out (via ValueError) if minor grids are not in a uniform state.
|
||
|
|
x_state, y_state = (
|
||
|
|
cycle[(cycle.index((x_state, y_state)) + 1) % len(cycle)])
|
||
|
|
return x_state, "both", y_state, "both"
|
||
|
|
|
||
|
|
|
||
|
|
class ToolFullScreen(ToolToggleBase):
|
||
|
|
"""Tool to toggle full screen"""
|
||
|
|
|
||
|
|
description = 'Toggle fullscreen mode'
|
||
|
|
default_keymap = rcParams['keymap.fullscreen']
|
||
|
|
|
||
|
|
def enable(self, event):
|
||
|
|
self.figure.canvas.manager.full_screen_toggle()
|
||
|
|
|
||
|
|
def disable(self, event):
|
||
|
|
self.figure.canvas.manager.full_screen_toggle()
|
||
|
|
|
||
|
|
|
||
|
|
class AxisScaleBase(ToolToggleBase):
|
||
|
|
"""Base Tool to toggle between linear and logarithmic"""
|
||
|
|
|
||
|
|
def trigger(self, sender, event, data=None):
|
||
|
|
if event.inaxes is None:
|
||
|
|
return
|
||
|
|
ToolToggleBase.trigger(self, sender, event, data)
|
||
|
|
|
||
|
|
def enable(self, event):
|
||
|
|
self.set_scale(event.inaxes, 'log')
|
||
|
|
self.figure.canvas.draw_idle()
|
||
|
|
|
||
|
|
def disable(self, event):
|
||
|
|
self.set_scale(event.inaxes, 'linear')
|
||
|
|
self.figure.canvas.draw_idle()
|
||
|
|
|
||
|
|
|
||
|
|
class ToolYScale(AxisScaleBase):
|
||
|
|
"""Tool to toggle between linear and logarithmic scales on the Y axis"""
|
||
|
|
|
||
|
|
description = 'Toggle scale Y axis'
|
||
|
|
default_keymap = rcParams['keymap.yscale']
|
||
|
|
|
||
|
|
def set_scale(self, ax, scale):
|
||
|
|
ax.set_yscale(scale)
|
||
|
|
|
||
|
|
|
||
|
|
class ToolXScale(AxisScaleBase):
|
||
|
|
"""Tool to toggle between linear and logarithmic scales on the X axis"""
|
||
|
|
|
||
|
|
description = 'Toggle scale X axis'
|
||
|
|
default_keymap = rcParams['keymap.xscale']
|
||
|
|
|
||
|
|
def set_scale(self, ax, scale):
|
||
|
|
ax.set_xscale(scale)
|
||
|
|
|
||
|
|
|
||
|
|
class ToolViewsPositions(ToolBase):
|
||
|
|
"""
|
||
|
|
Auxiliary Tool to handle changes in views and positions
|
||
|
|
|
||
|
|
Runs in the background and should get used by all the tools that
|
||
|
|
need to access the figure's history of views and positions, e.g.
|
||
|
|
|
||
|
|
* `ToolZoom`
|
||
|
|
* `ToolPan`
|
||
|
|
* `ToolHome`
|
||
|
|
* `ToolBack`
|
||
|
|
* `ToolForward`
|
||
|
|
"""
|
||
|
|
|
||
|
|
def __init__(self, *args, **kwargs):
|
||
|
|
self.views = WeakKeyDictionary()
|
||
|
|
self.positions = WeakKeyDictionary()
|
||
|
|
self.home_views = WeakKeyDictionary()
|
||
|
|
ToolBase.__init__(self, *args, **kwargs)
|
||
|
|
|
||
|
|
def add_figure(self, figure):
|
||
|
|
"""Add the current figure to the stack of views and positions"""
|
||
|
|
|
||
|
|
if figure not in self.views:
|
||
|
|
self.views[figure] = cbook.Stack()
|
||
|
|
self.positions[figure] = cbook.Stack()
|
||
|
|
self.home_views[figure] = WeakKeyDictionary()
|
||
|
|
# Define Home
|
||
|
|
self.push_current(figure)
|
||
|
|
# Make sure we add a home view for new axes as they're added
|
||
|
|
figure.add_axobserver(lambda fig: self.update_home_views(fig))
|
||
|
|
|
||
|
|
def clear(self, figure):
|
||
|
|
"""Reset the axes stack"""
|
||
|
|
if figure in self.views:
|
||
|
|
self.views[figure].clear()
|
||
|
|
self.positions[figure].clear()
|
||
|
|
self.home_views[figure].clear()
|
||
|
|
self.update_home_views()
|
||
|
|
|
||
|
|
def update_view(self):
|
||
|
|
"""
|
||
|
|
Update the view limits and position for each axes from the current
|
||
|
|
stack position. If any axes are present in the figure that aren't in
|
||
|
|
the current stack position, use the home view limits for those axes and
|
||
|
|
don't update *any* positions.
|
||
|
|
"""
|
||
|
|
|
||
|
|
views = self.views[self.figure]()
|
||
|
|
if views is None:
|
||
|
|
return
|
||
|
|
pos = self.positions[self.figure]()
|
||
|
|
if pos is None:
|
||
|
|
return
|
||
|
|
home_views = self.home_views[self.figure]
|
||
|
|
all_axes = self.figure.get_axes()
|
||
|
|
for a in all_axes:
|
||
|
|
if a in views:
|
||
|
|
cur_view = views[a]
|
||
|
|
else:
|
||
|
|
cur_view = home_views[a]
|
||
|
|
a._set_view(cur_view)
|
||
|
|
|
||
|
|
if set(all_axes).issubset(pos):
|
||
|
|
for a in all_axes:
|
||
|
|
# Restore both the original and modified positions
|
||
|
|
a._set_position(pos[a][0], 'original')
|
||
|
|
a._set_position(pos[a][1], 'active')
|
||
|
|
|
||
|
|
self.figure.canvas.draw_idle()
|
||
|
|
|
||
|
|
def push_current(self, figure=None):
|
||
|
|
"""
|
||
|
|
Push the current view limits and position onto their respective stacks
|
||
|
|
"""
|
||
|
|
if not figure:
|
||
|
|
figure = self.figure
|
||
|
|
views = WeakKeyDictionary()
|
||
|
|
pos = WeakKeyDictionary()
|
||
|
|
for a in figure.get_axes():
|
||
|
|
views[a] = a._get_view()
|
||
|
|
pos[a] = self._axes_pos(a)
|
||
|
|
self.views[figure].push(views)
|
||
|
|
self.positions[figure].push(pos)
|
||
|
|
|
||
|
|
def _axes_pos(self, ax):
|
||
|
|
"""
|
||
|
|
Return the original and modified positions for the specified axes
|
||
|
|
|
||
|
|
Parameters
|
||
|
|
----------
|
||
|
|
ax : (matplotlib.axes.AxesSubplot)
|
||
|
|
The axes to get the positions for
|
||
|
|
|
||
|
|
Returns
|
||
|
|
-------
|
||
|
|
limits : (tuple)
|
||
|
|
A tuple of the original and modified positions
|
||
|
|
"""
|
||
|
|
|
||
|
|
return (ax.get_position(True).frozen(),
|
||
|
|
ax.get_position().frozen())
|
||
|
|
|
||
|
|
def update_home_views(self, figure=None):
|
||
|
|
"""
|
||
|
|
Make sure that self.home_views has an entry for all axes present in the
|
||
|
|
figure
|
||
|
|
"""
|
||
|
|
|
||
|
|
if not figure:
|
||
|
|
figure = self.figure
|
||
|
|
for a in figure.get_axes():
|
||
|
|
if a not in self.home_views[figure]:
|
||
|
|
self.home_views[figure][a] = a._get_view()
|
||
|
|
|
||
|
|
def refresh_locators(self):
|
||
|
|
"""Redraw the canvases, update the locators"""
|
||
|
|
for a in self.figure.get_axes():
|
||
|
|
xaxis = getattr(a, 'xaxis', None)
|
||
|
|
yaxis = getattr(a, 'yaxis', None)
|
||
|
|
zaxis = getattr(a, 'zaxis', None)
|
||
|
|
locators = []
|
||
|
|
if xaxis is not None:
|
||
|
|
locators.append(xaxis.get_major_locator())
|
||
|
|
locators.append(xaxis.get_minor_locator())
|
||
|
|
if yaxis is not None:
|
||
|
|
locators.append(yaxis.get_major_locator())
|
||
|
|
locators.append(yaxis.get_minor_locator())
|
||
|
|
if zaxis is not None:
|
||
|
|
locators.append(zaxis.get_major_locator())
|
||
|
|
locators.append(zaxis.get_minor_locator())
|
||
|
|
|
||
|
|
for loc in locators:
|
||
|
|
loc.refresh()
|
||
|
|
self.figure.canvas.draw_idle()
|
||
|
|
|
||
|
|
def home(self):
|
||
|
|
"""Recall the first view and position from the stack"""
|
||
|
|
self.views[self.figure].home()
|
||
|
|
self.positions[self.figure].home()
|
||
|
|
|
||
|
|
def back(self):
|
||
|
|
"""Back one step in the stack of views and positions"""
|
||
|
|
self.views[self.figure].back()
|
||
|
|
self.positions[self.figure].back()
|
||
|
|
|
||
|
|
def forward(self):
|
||
|
|
"""Forward one step in the stack of views and positions"""
|
||
|
|
self.views[self.figure].forward()
|
||
|
|
self.positions[self.figure].forward()
|
||
|
|
|
||
|
|
|
||
|
|
class ViewsPositionsBase(ToolBase):
|
||
|
|
"""Base class for `ToolHome`, `ToolBack` and `ToolForward`"""
|
||
|
|
|
||
|
|
_on_trigger = None
|
||
|
|
|
||
|
|
def trigger(self, sender, event, data=None):
|
||
|
|
self.toolmanager.get_tool(_views_positions).add_figure(self.figure)
|
||
|
|
getattr(self.toolmanager.get_tool(_views_positions),
|
||
|
|
self._on_trigger)()
|
||
|
|
self.toolmanager.get_tool(_views_positions).update_view()
|
||
|
|
|
||
|
|
|
||
|
|
class ToolHome(ViewsPositionsBase):
|
||
|
|
"""Restore the original view lim"""
|
||
|
|
|
||
|
|
description = 'Reset original view'
|
||
|
|
image = 'home'
|
||
|
|
default_keymap = rcParams['keymap.home']
|
||
|
|
_on_trigger = 'home'
|
||
|
|
|
||
|
|
|
||
|
|
class ToolBack(ViewsPositionsBase):
|
||
|
|
"""Move back up the view lim stack"""
|
||
|
|
|
||
|
|
description = 'Back to previous view'
|
||
|
|
image = 'back'
|
||
|
|
default_keymap = rcParams['keymap.back']
|
||
|
|
_on_trigger = 'back'
|
||
|
|
|
||
|
|
|
||
|
|
class ToolForward(ViewsPositionsBase):
|
||
|
|
"""Move forward in the view lim stack"""
|
||
|
|
|
||
|
|
description = 'Forward to next view'
|
||
|
|
image = 'forward'
|
||
|
|
default_keymap = rcParams['keymap.forward']
|
||
|
|
_on_trigger = 'forward'
|
||
|
|
|
||
|
|
|
||
|
|
class ConfigureSubplotsBase(ToolBase):
|
||
|
|
"""Base tool for the configuration of subplots"""
|
||
|
|
|
||
|
|
description = 'Configure subplots'
|
||
|
|
image = 'subplots'
|
||
|
|
|
||
|
|
|
||
|
|
class SaveFigureBase(ToolBase):
|
||
|
|
"""Base tool for figure saving"""
|
||
|
|
|
||
|
|
description = 'Save the figure'
|
||
|
|
image = 'filesave'
|
||
|
|
default_keymap = rcParams['keymap.save']
|
||
|
|
|
||
|
|
|
||
|
|
class ZoomPanBase(ToolToggleBase):
|
||
|
|
"""Base class for `ToolZoom` and `ToolPan`"""
|
||
|
|
def __init__(self, *args):
|
||
|
|
ToolToggleBase.__init__(self, *args)
|
||
|
|
self._button_pressed = None
|
||
|
|
self._xypress = None
|
||
|
|
self._idPress = None
|
||
|
|
self._idRelease = None
|
||
|
|
self._idScroll = None
|
||
|
|
self.base_scale = 2.
|
||
|
|
self.scrollthresh = .5 # .5 second scroll threshold
|
||
|
|
self.lastscroll = time.time()-self.scrollthresh
|
||
|
|
|
||
|
|
def enable(self, event):
|
||
|
|
"""Connect press/release events and lock the canvas"""
|
||
|
|
self.figure.canvas.widgetlock(self)
|
||
|
|
self._idPress = self.figure.canvas.mpl_connect(
|
||
|
|
'button_press_event', self._press)
|
||
|
|
self._idRelease = self.figure.canvas.mpl_connect(
|
||
|
|
'button_release_event', self._release)
|
||
|
|
self._idScroll = self.figure.canvas.mpl_connect(
|
||
|
|
'scroll_event', self.scroll_zoom)
|
||
|
|
|
||
|
|
def disable(self, event):
|
||
|
|
"""Release the canvas and disconnect press/release events"""
|
||
|
|
self._cancel_action()
|
||
|
|
self.figure.canvas.widgetlock.release(self)
|
||
|
|
self.figure.canvas.mpl_disconnect(self._idPress)
|
||
|
|
self.figure.canvas.mpl_disconnect(self._idRelease)
|
||
|
|
self.figure.canvas.mpl_disconnect(self._idScroll)
|
||
|
|
|
||
|
|
def trigger(self, sender, event, data=None):
|
||
|
|
self.toolmanager.get_tool(_views_positions).add_figure(self.figure)
|
||
|
|
ToolToggleBase.trigger(self, sender, event, data)
|
||
|
|
|
||
|
|
def scroll_zoom(self, event):
|
||
|
|
# https://gist.github.com/tacaswell/3144287
|
||
|
|
if event.inaxes is None:
|
||
|
|
return
|
||
|
|
|
||
|
|
if event.button == 'up':
|
||
|
|
# deal with zoom in
|
||
|
|
scl = self.base_scale
|
||
|
|
elif event.button == 'down':
|
||
|
|
# deal with zoom out
|
||
|
|
scl = 1/self.base_scale
|
||
|
|
else:
|
||
|
|
# deal with something that should never happen
|
||
|
|
scl = 1
|
||
|
|
|
||
|
|
ax = event.inaxes
|
||
|
|
ax._set_view_from_bbox([event.x, event.y, scl])
|
||
|
|
|
||
|
|
# If last scroll was done within the timing threshold, delete the
|
||
|
|
# previous view
|
||
|
|
if (time.time()-self.lastscroll) < self.scrollthresh:
|
||
|
|
self.toolmanager.get_tool(_views_positions).back()
|
||
|
|
|
||
|
|
self.figure.canvas.draw_idle() # force re-draw
|
||
|
|
|
||
|
|
self.lastscroll = time.time()
|
||
|
|
self.toolmanager.get_tool(_views_positions).push_current()
|
||
|
|
|
||
|
|
|
||
|
|
class ToolZoom(ZoomPanBase):
|
||
|
|
"""Zoom to rectangle"""
|
||
|
|
|
||
|
|
description = 'Zoom to rectangle'
|
||
|
|
image = 'zoom_to_rect'
|
||
|
|
default_keymap = rcParams['keymap.zoom']
|
||
|
|
cursor = cursors.SELECT_REGION
|
||
|
|
radio_group = 'default'
|
||
|
|
|
||
|
|
def __init__(self, *args):
|
||
|
|
ZoomPanBase.__init__(self, *args)
|
||
|
|
self._ids_zoom = []
|
||
|
|
|
||
|
|
def _cancel_action(self):
|
||
|
|
for zoom_id in self._ids_zoom:
|
||
|
|
self.figure.canvas.mpl_disconnect(zoom_id)
|
||
|
|
self.toolmanager.trigger_tool('rubberband', self)
|
||
|
|
self.toolmanager.get_tool(_views_positions).refresh_locators()
|
||
|
|
self._xypress = None
|
||
|
|
self._button_pressed = None
|
||
|
|
self._ids_zoom = []
|
||
|
|
return
|
||
|
|
|
||
|
|
def _press(self, event):
|
||
|
|
"""Callback for mouse button presses in zoom-to-rectangle mode."""
|
||
|
|
|
||
|
|
# If we're already in the middle of a zoom, pressing another
|
||
|
|
# button works to "cancel"
|
||
|
|
if self._ids_zoom != []:
|
||
|
|
self._cancel_action()
|
||
|
|
|
||
|
|
if event.button == 1:
|
||
|
|
self._button_pressed = 1
|
||
|
|
elif event.button == 3:
|
||
|
|
self._button_pressed = 3
|
||
|
|
else:
|
||
|
|
self._cancel_action()
|
||
|
|
return
|
||
|
|
|
||
|
|
x, y = event.x, event.y
|
||
|
|
|
||
|
|
self._xypress = []
|
||
|
|
for i, a in enumerate(self.figure.get_axes()):
|
||
|
|
if (x is not None and y is not None and a.in_axes(event) and
|
||
|
|
a.get_navigate() and a.can_zoom()):
|
||
|
|
self._xypress.append((x, y, a, i, a._get_view()))
|
||
|
|
|
||
|
|
id1 = self.figure.canvas.mpl_connect(
|
||
|
|
'motion_notify_event', self._mouse_move)
|
||
|
|
id2 = self.figure.canvas.mpl_connect(
|
||
|
|
'key_press_event', self._switch_on_zoom_mode)
|
||
|
|
id3 = self.figure.canvas.mpl_connect(
|
||
|
|
'key_release_event', self._switch_off_zoom_mode)
|
||
|
|
|
||
|
|
self._ids_zoom = id1, id2, id3
|
||
|
|
self._zoom_mode = event.key
|
||
|
|
|
||
|
|
def _switch_on_zoom_mode(self, event):
|
||
|
|
self._zoom_mode = event.key
|
||
|
|
self._mouse_move(event)
|
||
|
|
|
||
|
|
def _switch_off_zoom_mode(self, event):
|
||
|
|
self._zoom_mode = None
|
||
|
|
self._mouse_move(event)
|
||
|
|
|
||
|
|
def _mouse_move(self, event):
|
||
|
|
"""Callback for mouse moves in zoom-to-rectangle mode."""
|
||
|
|
|
||
|
|
if self._xypress:
|
||
|
|
x, y = event.x, event.y
|
||
|
|
lastx, lasty, a, ind, view = self._xypress[0]
|
||
|
|
(x1, y1), (x2, y2) = np.clip(
|
||
|
|
[[lastx, lasty], [x, y]], a.bbox.min, a.bbox.max)
|
||
|
|
if self._zoom_mode == "x":
|
||
|
|
y1, y2 = a.bbox.intervaly
|
||
|
|
elif self._zoom_mode == "y":
|
||
|
|
x1, x2 = a.bbox.intervalx
|
||
|
|
self.toolmanager.trigger_tool(
|
||
|
|
'rubberband', self, data=(x1, y1, x2, y2))
|
||
|
|
|
||
|
|
def _release(self, event):
|
||
|
|
"""Callback for mouse button releases in zoom-to-rectangle mode."""
|
||
|
|
|
||
|
|
for zoom_id in self._ids_zoom:
|
||
|
|
self.figure.canvas.mpl_disconnect(zoom_id)
|
||
|
|
self._ids_zoom = []
|
||
|
|
|
||
|
|
if not self._xypress:
|
||
|
|
self._cancel_action()
|
||
|
|
return
|
||
|
|
|
||
|
|
last_a = []
|
||
|
|
|
||
|
|
for cur_xypress in self._xypress:
|
||
|
|
x, y = event.x, event.y
|
||
|
|
lastx, lasty, a, _ind, view = cur_xypress
|
||
|
|
# ignore singular clicks - 5 pixels is a threshold
|
||
|
|
if abs(x - lastx) < 5 or abs(y - lasty) < 5:
|
||
|
|
self._cancel_action()
|
||
|
|
return
|
||
|
|
|
||
|
|
# detect twinx, twiny axes and avoid double zooming
|
||
|
|
twinx, twiny = False, False
|
||
|
|
if last_a:
|
||
|
|
for la in last_a:
|
||
|
|
if a.get_shared_x_axes().joined(a, la):
|
||
|
|
twinx = True
|
||
|
|
if a.get_shared_y_axes().joined(a, la):
|
||
|
|
twiny = True
|
||
|
|
last_a.append(a)
|
||
|
|
|
||
|
|
if self._button_pressed == 1:
|
||
|
|
direction = 'in'
|
||
|
|
elif self._button_pressed == 3:
|
||
|
|
direction = 'out'
|
||
|
|
else:
|
||
|
|
continue
|
||
|
|
|
||
|
|
a._set_view_from_bbox((lastx, lasty, x, y), direction,
|
||
|
|
self._zoom_mode, twinx, twiny)
|
||
|
|
|
||
|
|
self._zoom_mode = None
|
||
|
|
self.toolmanager.get_tool(_views_positions).push_current()
|
||
|
|
self._cancel_action()
|
||
|
|
|
||
|
|
|
||
|
|
class ToolPan(ZoomPanBase):
|
||
|
|
"""Pan axes with left mouse, zoom with right"""
|
||
|
|
|
||
|
|
default_keymap = rcParams['keymap.pan']
|
||
|
|
description = 'Pan axes with left mouse, zoom with right'
|
||
|
|
image = 'move'
|
||
|
|
cursor = cursors.MOVE
|
||
|
|
radio_group = 'default'
|
||
|
|
|
||
|
|
def __init__(self, *args):
|
||
|
|
ZoomPanBase.__init__(self, *args)
|
||
|
|
self._idDrag = None
|
||
|
|
|
||
|
|
def _cancel_action(self):
|
||
|
|
self._button_pressed = None
|
||
|
|
self._xypress = []
|
||
|
|
self.figure.canvas.mpl_disconnect(self._idDrag)
|
||
|
|
self.toolmanager.messagelock.release(self)
|
||
|
|
self.toolmanager.get_tool(_views_positions).refresh_locators()
|
||
|
|
|
||
|
|
def _press(self, event):
|
||
|
|
if event.button == 1:
|
||
|
|
self._button_pressed = 1
|
||
|
|
elif event.button == 3:
|
||
|
|
self._button_pressed = 3
|
||
|
|
else:
|
||
|
|
self._cancel_action()
|
||
|
|
return
|
||
|
|
|
||
|
|
x, y = event.x, event.y
|
||
|
|
|
||
|
|
self._xypress = []
|
||
|
|
for i, a in enumerate(self.figure.get_axes()):
|
||
|
|
if (x is not None and y is not None and a.in_axes(event) and
|
||
|
|
a.get_navigate() and a.can_pan()):
|
||
|
|
a.start_pan(x, y, event.button)
|
||
|
|
self._xypress.append((a, i))
|
||
|
|
self.toolmanager.messagelock(self)
|
||
|
|
self._idDrag = self.figure.canvas.mpl_connect(
|
||
|
|
'motion_notify_event', self._mouse_move)
|
||
|
|
|
||
|
|
def _release(self, event):
|
||
|
|
if self._button_pressed is None:
|
||
|
|
self._cancel_action()
|
||
|
|
return
|
||
|
|
|
||
|
|
self.figure.canvas.mpl_disconnect(self._idDrag)
|
||
|
|
self.toolmanager.messagelock.release(self)
|
||
|
|
|
||
|
|
for a, _ind in self._xypress:
|
||
|
|
a.end_pan()
|
||
|
|
if not self._xypress:
|
||
|
|
self._cancel_action()
|
||
|
|
return
|
||
|
|
|
||
|
|
self.toolmanager.get_tool(_views_positions).push_current()
|
||
|
|
self._cancel_action()
|
||
|
|
|
||
|
|
def _mouse_move(self, event):
|
||
|
|
for a, _ind in self._xypress:
|
||
|
|
# safer to use the recorded button at the _press than current
|
||
|
|
# button: # multiple button can get pressed during motion...
|
||
|
|
a.drag_pan(self._button_pressed, event.key, event.x, event.y)
|
||
|
|
self.toolmanager.canvas.draw_idle()
|
||
|
|
|
||
|
|
|
||
|
|
class ToolHelpBase(ToolBase):
|
||
|
|
description = 'Print tool list, shortcuts and description'
|
||
|
|
default_keymap = rcParams['keymap.help']
|
||
|
|
image = 'help.png'
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
def format_shortcut(key_sequence):
|
||
|
|
"""
|
||
|
|
Converts a shortcut string from the notation used in rc config to the
|
||
|
|
standard notation for displaying shortcuts, e.g. 'ctrl+a' -> 'Ctrl+A'.
|
||
|
|
"""
|
||
|
|
return (key_sequence if len(key_sequence) == 1 else
|
||
|
|
re.sub(r"\+[A-Z]", r"+Shift\g<0>", key_sequence).title())
|
||
|
|
|
||
|
|
def _format_tool_keymap(self, name):
|
||
|
|
keymaps = self.toolmanager.get_tool_keymap(name)
|
||
|
|
return ", ".join(self.format_shortcut(keymap) for keymap in keymaps)
|
||
|
|
|
||
|
|
def _get_help_entries(self):
|
||
|
|
return [(name, self._format_tool_keymap(name), tool.description)
|
||
|
|
for name, tool in sorted(self.toolmanager.tools.items())
|
||
|
|
if tool.description]
|
||
|
|
|
||
|
|
def _get_help_text(self):
|
||
|
|
entries = self._get_help_entries()
|
||
|
|
entries = ["{}: {}\n\t{}".format(*entry) for entry in entries]
|
||
|
|
return "\n".join(entries)
|
||
|
|
|
||
|
|
def _get_help_html(self):
|
||
|
|
fmt = "<tr><td>{}</td><td>{}</td><td>{}</td></tr>"
|
||
|
|
rows = [fmt.format(
|
||
|
|
"<b>Action</b>", "<b>Shortcuts</b>", "<b>Description</b>")]
|
||
|
|
rows += [fmt.format(*row) for row in self._get_help_entries()]
|
||
|
|
return ("<style>td {padding: 0px 4px}</style>"
|
||
|
|
"<table><thead>" + rows[0] + "</thead>"
|
||
|
|
"<tbody>".join(rows[1:]) + "</tbody></table>")
|
||
|
|
|
||
|
|
|
||
|
|
class ToolCopyToClipboardBase(ToolBase):
|
||
|
|
"""Tool to copy the figure to the clipboard"""
|
||
|
|
|
||
|
|
description = 'Copy the canvas figure to clipboard'
|
||
|
|
default_keymap = rcParams['keymap.copy']
|
||
|
|
|
||
|
|
def trigger(self, *args, **kwargs):
|
||
|
|
message = "Copy tool is not available"
|
||
|
|
self.toolmanager.message_event(message, self)
|
||
|
|
|
||
|
|
|
||
|
|
default_tools = {'home': ToolHome, 'back': ToolBack, 'forward': ToolForward,
|
||
|
|
'zoom': ToolZoom, 'pan': ToolPan,
|
||
|
|
'subplots': 'ToolConfigureSubplots',
|
||
|
|
'save': 'ToolSaveFigure',
|
||
|
|
'grid': ToolGrid,
|
||
|
|
'grid_minor': ToolMinorGrid,
|
||
|
|
'fullscreen': ToolFullScreen,
|
||
|
|
'quit': ToolQuit,
|
||
|
|
'quit_all': ToolQuitAll,
|
||
|
|
'allnav': ToolEnableAllNavigation,
|
||
|
|
'nav': ToolEnableNavigation,
|
||
|
|
'xscale': ToolXScale,
|
||
|
|
'yscale': ToolYScale,
|
||
|
|
'position': ToolCursorPosition,
|
||
|
|
_views_positions: ToolViewsPositions,
|
||
|
|
'cursor': 'ToolSetCursor',
|
||
|
|
'rubberband': 'ToolRubberband',
|
||
|
|
'help': 'ToolHelp',
|
||
|
|
'copy': 'ToolCopyToClipboard',
|
||
|
|
}
|
||
|
|
"""Default tools"""
|
||
|
|
|
||
|
|
default_toolbar_tools = [['navigation', ['home', 'back', 'forward']],
|
||
|
|
['zoompan', ['pan', 'zoom', 'subplots']],
|
||
|
|
['io', ['save', 'help']]]
|
||
|
|
"""Default tools in the toolbar"""
|
||
|
|
|
||
|
|
|
||
|
|
def add_tools_to_manager(toolmanager, tools=default_tools):
|
||
|
|
"""
|
||
|
|
Add multiple tools to `ToolManager`
|
||
|
|
|
||
|
|
Parameters
|
||
|
|
----------
|
||
|
|
toolmanager : ToolManager
|
||
|
|
`backend_managers.ToolManager` object that will get the tools added
|
||
|
|
tools : {str: class_like}, optional
|
||
|
|
The tools to add in a {name: tool} dict, see `add_tool` for more
|
||
|
|
info.
|
||
|
|
"""
|
||
|
|
|
||
|
|
for name, tool in tools.items():
|
||
|
|
toolmanager.add_tool(name, tool)
|
||
|
|
|
||
|
|
|
||
|
|
def add_tools_to_container(container, tools=default_toolbar_tools):
|
||
|
|
"""
|
||
|
|
Add multiple tools to the container.
|
||
|
|
|
||
|
|
Parameters
|
||
|
|
----------
|
||
|
|
container : Container
|
||
|
|
`backend_bases.ToolContainerBase` object that will get the tools added
|
||
|
|
tools : list, optional
|
||
|
|
List in the form
|
||
|
|
[[group1, [tool1, tool2 ...]], [group2, [...]]]
|
||
|
|
Where the tools given by tool1, and tool2 will display in group1.
|
||
|
|
See `add_tool` for details.
|
||
|
|
"""
|
||
|
|
|
||
|
|
for group, grouptools in tools:
|
||
|
|
for position, tool in enumerate(grouptools):
|
||
|
|
container.add_tool(tool, group, position)
|