985 lines
34 KiB
Python
985 lines
34 KiB
Python
import pygtk
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import gobject
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import gtk
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from matplotlib.patches import Polygon,Rectangle
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from matplotlib.lines import Line2D
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import fluents
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import logger
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# global active mode. Used by toolbars to communicate correct mode
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active_mode = 'default'
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class ObjectTable:
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"""A 2D table of elements.
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An ObjectTable is a resizable two-dimensional array of objects.
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When resized, it will keep all the elements that fit in the new shape,
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and forget about other elements. When new elements are needed to fill
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out the new shape, they will be created.
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"""
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def __init__(self, xsize=0, ysize=0, creator=None):
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"""Creates a two-dimensional table of objects.
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@param xsize: Width of the object table.
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@param ysize: Height of the object table.
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@param creator: A function that will be used to instantiate new items.
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"""
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self._elements = []
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self._creator = creator or (lambda : None)
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self.xsize = xsize
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self.ysize = ysize
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self.resize(xsize, ysize)
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def resize(self, xsize, ysize):
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"""Resizes the table by removing and creating elements as required.
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Makes the ObjectTable the specified size by removing elements that
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will not fit in the new shape and appending elements to fill the
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table. New elements will be created with the creator function passed
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as an argument to __init__.
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@param xsize: The new width.
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@type xsize: int
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@param ysize: The new height.
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@type ysize: int
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"""
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# Delete or append new rows
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del self._elements[ysize:]
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new_rows = ysize - len(self._elements)
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self._elements.extend([list() for i in range(new_rows)])
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# Delete or append new columns
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for row in self._elements:
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del row[xsize:]
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new_elems = xsize - len(row)
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row.extend([self._creator() for i in range(new_elems)])
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self.xsize = xsize
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self.ysize = ysize
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def __getitem__(self, index):
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x, y = index
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return self._elements[y][x]
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def __setitem__(self, index, value):
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x, y = index
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self._elements[y][x] = value
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class ViewFrame (gtk.Frame):
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"""
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A ViewFrame is a gtk container widget that contains a View.
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The ViewFrame is either active or inactive, and belongs to a group of
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VeiwFrames of which only one can be active at any time.
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"""
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def __init__(self, view_frames):
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"""Initializes a new ViewFrame.
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@param view_frames: A list of view frames to which the new view
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frame shouls belong. Only one ViewFrame in this list can be
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active at any time.
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"""
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gtk.Frame.__init__(self)
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self.focused = False
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self.view_frames = view_frames
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self.empty_view = EmptyView()
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self._button_event = None
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## Set up a VBox with a label wrapped in an event box.
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label = gtk.Label()
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ebox = gtk.EventBox()
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ebox.add(label)
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vbox = gtk.VBox()
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vbox.pack_start(ebox, expand=False)
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vbox.pack_start(gtk.HSeparator(), expand=False)
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self._ebox_button_event = ebox.connect("button-press-event",
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self._on_button_press_event)
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## Keep the references for later use.
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self._vbox = vbox
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self._ebox = ebox
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self._view_title = label
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self.add(vbox)
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view_frames.append(self)
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if len(view_frames) == 1:
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self.focus()
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else:
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self.focused = True
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self.unfocus()
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# Get dropped views
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self.drag_dest_set(gtk.DEST_DEFAULT_ALL,
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[("GTK_TREE_MODEL_ROW", gtk.TARGET_SAME_APP, 7)],
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gtk.gdk.ACTION_LINK)
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self.connect("drag-data-received", self.on_drag_data_received)
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# Set view
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self._view = self.empty_view
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self._view.connect("button-press-event", self._on_button_press_event)
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self._vbox.add(self._view)
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self._view_title.set_text(self._view.title)
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self.show_all()
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self._view.show()
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def focus(self):
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"""Gets focus and ensures that no other ViewFrame in the same set
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is in focus.
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"""
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if self.focused:
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self.emit('focus-changed', self, True)
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return self
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for frame in self.view_frames:
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frame.unfocus()
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self.set_shadow_type(gtk.SHADOW_IN)
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self._ebox.set_state(gtk.STATE_ACTIVE)
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self.focused = True
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self.emit('focus-changed', self, True)
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return self
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def unfocus(self):
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"""Removes focus from the ViewFrame. Does nothing if unfocused."""
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if not self.focused:
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return
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self.set_shadow_type(gtk.SHADOW_OUT)
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self._ebox.set_state(gtk.STATE_NORMAL)
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self.focused = False
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self.emit('focus-changed', self, False)
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def set_view(self, view):
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"""Set view to view or to empty view if parameter is None
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@param view: An instance of View
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"""
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# if None is passed, use empty view
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if view == None:
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view = self.empty_view
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# do nothing if the view is already there
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if view == self._view:
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return
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# detach view from current parent
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if view._view_frame:
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view._view_frame.set_view(None)
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# switch which widget we are listening to
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if self._button_event:
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self._view.disconnect(self._button_event)
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self._button_event = view.connect("button-press-event",
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self._on_button_press_event)
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# remove old view, set new view
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if self._view:
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self._view.hide()
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self._vbox.remove(self._view)
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self._view._view_frame = None
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self._view_title.set_text(view.title)
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self._vbox.add(view)
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view.show()
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view._view_frame = self
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self._view = view
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def get_view(self):
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"""Returns current view, or None if the empty view is set.
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@returns: None if the ViewFrame is currently displaying it's
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EmptyView. Otherwise it returns the currently displeyd View.
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"""
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if self._view == self.empty_view:
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return None
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return self._view
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def _on_button_press_event(self, widget, event):
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if not self.focused:
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self.focus()
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def on_drag_data_received(self, widget, drag_context, x, y,
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selection, info, timestamp):
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treestore, path = selection.tree_get_row_drag_data()
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iter = treestore.get_iter(path)
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obj = treestore.get_value(iter, 2)
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if isinstance(obj, View):
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self.set_view(obj)
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self.focus()
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elif isinstance(obj, fluents.dataset.Dataset):
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view = self.get_view()
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if view.is_mappable_with(obj):
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view._update_color_from_dataset(obj)
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elif isinstance(obj, fluents.dataset.Selection):
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view = self.get_view()
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if view.is_mappable_with(obj):
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view.selection_changed(self.current_dim, obj)
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class MainView (gtk.Notebook):
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"""The MainView class displays the Views in Fluents.
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MainView, of which there is normally only one instance, contains a
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gtk.Table that holds all the visible Views, and a single ViewFrame
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that is used for maximizing plots.
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"""
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def __init__(self):
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gtk.Notebook.__init__(self)
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self.set_show_tabs(False)
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self.set_show_border(False)
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self._view_frames = []
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self._views = ObjectTable(2, 2, lambda : ViewFrame(self._view_frames))
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self._large_view = ViewFrame(list())
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self.update_small_views()
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for vf in self._view_frames:
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vf.connect('focus-changed', self._on_view_focus_changed)
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self.append_page(self._small_views)
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self.append_page(self._large_view)
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self.show()
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self.set_current_page(0)
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def __getitem__(self, x, y):
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return self._views[x, y]
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def update_small_views(self):
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"""Creates a new gtk.Table to show the views. Called after changes to
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the _views property"""
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self._small_views = gtk.Table(self._views.ysize, self._views.xsize, True)
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self._small_views.set_col_spacings(4)
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self._small_views.set_row_spacings(4)
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for x in range(self._views.xsize):
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for y in range(self._views.ysize):
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child = self._views[x,y]
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self._small_views.attach(child, x, x+1, y, y+1)
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self._small_views.show_all()
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def get_active_small_view(self):
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"""Returns the active ViewFrame in the small views table.
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If a view is maximized, the corresponding ViewFrame in the table
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will be returned, not the active maximized ViewFrame"""
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for vf in self._view_frames:
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if vf.focused:
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return vf
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return None
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def get_active_view_frame(self):
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"""Returns the active view frame."""
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if self.get_current_page() == 0:
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return self.get_active_small_view()
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else:
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return self._large_view
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def goto_large(self):
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"""Maximize the view in the current ViewFrame.
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Maximizes the View in the current ViewFrame. The ViewFrame itself is
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not resized or modified, except it's view will be set to None.
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This method will do nothing if a view is currently maximized.
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"""
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if self.get_current_page() == 1:
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return
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vf = self.get_active_small_view()
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view = vf.get_view()
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vf.set_view(None)
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self._large_view.set_view(view)
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self.set_current_page(1)
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def goto_small(self):
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"""Goes to the small views page.
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The maximized View will be given to the active ViewFrame in the view
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table.
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"""
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if self.get_current_page() == 0:
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return
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vf = self.get_active_small_view()
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view = self._large_view.get_view()
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self._large_view.set_view(None)
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vf.set_view(view)
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self.set_current_page(0)
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def insert_view(self, view):
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"""Set a view in the currently active ViewFrame.
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@param view: An instance of View.
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"""
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if self.get_current_page() == 0:
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vf = self.get_active_small_view()
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else:
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vf = self._large_view
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vf.set_view(view)
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def set_all_plots(self, views):
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"""Displays all the views in the list, and hides all other views.
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Loops through all ViewFrames from top left to bottom right, and sets
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their currently active View to the next view in the list. After the
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last view is placed in a ViewFrame, the remaining ViewFrames are
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emptied.
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@param views: A list of views to set.
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"""
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for y in range(self._views.ysize):
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for x in range(self._views.xsize):
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if views:
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self._views[x, y].set_view(views.pop())
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else:
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self._views[x, y].set_view(None)
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def get_active_view_index(self):
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current = self.get_active_small_view()
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for i in range(self._views.xsize):
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for j in range(self._views.ysize):
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if self._views[i, j] == current:
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return (i, j)
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return None
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def set_active_view_by_index(self, x, y):
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self._views[x, y].focus()
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def move_focus_left(self):
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x, y = self.get_active_view_index()
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if x > 0:
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self.set_active_view_by_index(x-1, y)
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def move_focus_right(self):
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x, y = self.get_active_view_index()
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if x < self._views.xsize-1:
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self.set_active_view_by_index(x+1, y)
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def move_focus_up(self):
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x, y = self.get_active_view_index()
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if y > 0:
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self.set_active_view_by_index(x, y-1)
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def move_focus_down(self):
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x, y = self.get_active_view_index()
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if y < self._views.ysize-1:
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self.set_active_view_by_index(x, y+1)
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def _on_view_focus_changed(self, widget, vf, focused):
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if focused:
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self.emit('view-changed', vf)
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def resize_table(self, width, height):
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"""Resizes the list of small views.
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"""
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## Hide all plots that will be removed from the screen.
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for x in range(self._views.xsize):
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for y in range(self._views.ysize):
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if x >= width or y >= height:
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self._views[x, y].set_view(None)
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self._view_frames.remove(self._views[x, y])
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for x in range(self._views.xsize):
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for y in range(self._views.ysize):
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self._small_views.remove(self._views[x, y])
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self._views.resize(width, height)
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self.update_small_views()
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self.insert_page(self._small_views, gtk.Label("small"), 0)
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self.remove_page(1)
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#self.set_current_page(0)
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self.goto_small()
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class View (gtk.Frame):
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"""The base class of everything that is shown in the center view of
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fluents.
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Most views should rather subclass Plot, which automatically handles
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freezing, creates a toolbar, and sets up matplotlib Figure and Canvas
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objects.
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"""
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def __init__(self, title):
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gtk.Frame.__init__(self)
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self.title = title
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self.set_shadow_type(gtk.SHADOW_NONE)
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self._view_frame = None
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def get_toolbar(self):
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return None
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def is_mappable_with(self, dataset):
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"""Override in individual plots."""
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return False
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class EmptyView (View):
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"""EmptyView is shown in ViewFrames that are unused."""
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def __init__(self):
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View.__init__(self, 'Empty view')
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self.set_label(None)
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label = gtk.Label('No view')
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ebox = gtk.EventBox()
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ebox.add(label)
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self.add(ebox)
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label.show()
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ebox.show()
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self.show()
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class PlotMode:
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"""A PlotMode object corresponds to a mouse mode in a plot.
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When a mode is selected in the toolbar, the PlotMode corresponding
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to the toolbar button is activated by calling setup(ax) for the axis
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system ax.
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"""
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def __init__(self, plot, name, tooltip, image_file):
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self.name = name
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self.tooltip = tooltip
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self.image_file = image_file
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self.plot = plot
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self.canvas = plot.canvas
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def get_icon(self):
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"""Returns the icon for the PlotMode"""
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image = gtk.Image()
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image.set_from_pixbuf(fluents.icon_factory.get(self.image_file))
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return image
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def activate(self):
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"""Subclasses of PlotMode should do their initialization here.
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The activate method is called when a mode is activated, and is
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used primarily to set up callback functions on events in the
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canvas.
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"""
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pass
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def deactivate(self):
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"""Subclasses of PlotMode should do their cleanup here.
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The deactivate method is primarily by subclasses of PlotMode to
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remove any callbacks they might have on the matplotlib canvas.
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"""
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pass
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class DefaultPlotMode(PlotMode):
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def __init__(self, plot):
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PlotMode.__init__(self, plot, 'default', 'Default mode', 'cursor')
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class PanPlotMode(PlotMode):
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def __init__(self, plot):
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PlotMode.__init__(self, plot, 'pan',
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'Pan axes with left mouse, zoom with right',
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'move')
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# Holds handler IDs for callbacks.
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self._button_press = None
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self._button_release = None
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self._motion_notify = None
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self._xypress = None
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self._button_pressed = None
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def activate(self):
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self._button_press = self.canvas.mpl_connect(
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'button_press_event', self._on_button_press)
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self._button_release = self.canvas.mpl_connect(
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'button_release_event', self._on_button_release)
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def deactivate(self):
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if self._button_press:
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self.canvas.mpl_disconnect(self._button_press)
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if self._button_release:
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self.canvas.mpl_disconnect(self._button_release)
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def _on_button_press(self, event):
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if event.button == 1:
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self._button_pressed = 1
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elif event.button == 3:
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self._button_pressed = 3
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else:
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self._button_pressed=None
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return
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x, y = event.x, event.y
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# push the current view to define home if stack is empty
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# if self._views.empty(): self.push_current()
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self._xypress=[]
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for i, a in enumerate(self.canvas.figure.get_axes()):
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if x is not None and y is not None and a.in_axes(x, y) \
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and a.get_navigate():
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xmin, xmax = a.get_xlim()
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ymin, ymax = a.get_ylim()
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lim = xmin, xmax, ymin, ymax
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self._xypress.append((x, y, a, i, lim,a.transData.deepcopy()))
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self.canvas.mpl_disconnect(self._motion_notify)
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cid = self.canvas.mpl_connect('motion_notify_event',
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self._on_motion_notify)
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self._motion_notify = cid
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|
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def _on_motion_notify(self, event):
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"""The drag callback in pan/zoom mode"""
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|
|
def format_deltas(event, dx, dy):
|
|
"""Returns the correct dx and dy based on the modifier keys"""
|
|
if event.key=='control':
|
|
if(abs(dx)>abs(dy)):
|
|
dy = dx
|
|
else:
|
|
dx = dy
|
|
elif event.key=='x':
|
|
dy = 0
|
|
elif event.key=='y':
|
|
dx = 0
|
|
elif event.key=='shift':
|
|
if 2*abs(dx) < abs(dy):
|
|
dx=0
|
|
elif 2*abs(dy) < abs(dx):
|
|
dy=0
|
|
elif(abs(dx)>abs(dy)):
|
|
dy=dy/abs(dy)*abs(dx)
|
|
else:
|
|
dx=dx/abs(dx)*abs(dy)
|
|
return (dx,dy)
|
|
|
|
for cur_xypress in self._xypress:
|
|
lastx, lasty, a, ind, lim, trans = cur_xypress
|
|
xmin, xmax, ymin, ymax = lim
|
|
|
|
#safer to use the recorded button at the press than current button:
|
|
#multiple button can get pressed during motion...
|
|
if self._button_pressed==1:
|
|
lastx, lasty = trans.inverse_xy_tup( (lastx, lasty) )
|
|
x, y = trans.inverse_xy_tup( (event.x, event.y) )
|
|
if a.get_xscale()=='log':
|
|
dx=1-lastx/x
|
|
else:
|
|
dx=x-lastx
|
|
if a.get_yscale()=='log':
|
|
dy=1-lasty/y
|
|
else:
|
|
dy=y-lasty
|
|
|
|
dx,dy=format_deltas(event,dx,dy)
|
|
|
|
if a.get_xscale()=='log':
|
|
xmin *= 1-dx
|
|
xmax *= 1-dx
|
|
else:
|
|
xmin -= dx
|
|
xmax -= dx
|
|
if a.get_yscale()=='log':
|
|
ymin *= 1-dy
|
|
ymax *= 1-dy
|
|
else:
|
|
ymin -= dy
|
|
ymax -= dy
|
|
|
|
elif self._button_pressed==3:
|
|
try:
|
|
dx=(lastx-event.x)/float(a.bbox.width())
|
|
dy=(lasty-event.y)/float(a.bbox.height())
|
|
dx,dy=format_deltas(event,dx,dy)
|
|
if a.get_aspect() != 'auto':
|
|
dx = 0.5*(dx + dy)
|
|
dy = dx
|
|
alphax = pow(10.0,dx)
|
|
alphay = pow(10.0,dy)
|
|
lastx, lasty = trans.inverse_xy_tup( (lastx, lasty) )
|
|
if a.get_xscale()=='log':
|
|
xmin = lastx*(xmin/lastx)**alphax
|
|
xmax = lastx*(xmax/lastx)**alphax
|
|
else:
|
|
xmin = lastx+alphax*(xmin-lastx)
|
|
xmax = lastx+alphax*(xmax-lastx)
|
|
if a.get_yscale()=='log':
|
|
ymin = lasty*(ymin/lasty)**alphay
|
|
ymax = lasty*(ymax/lasty)**alphay
|
|
else:
|
|
ymin = lasty+alphay*(ymin-lasty)
|
|
ymax = lasty+alphay*(ymax-lasty)
|
|
|
|
except OverflowError:
|
|
warnings.warn('Overflow while panning')
|
|
return
|
|
|
|
a.set_xlim(xmin, xmax)
|
|
a.set_ylim(ymin, ymax)
|
|
|
|
self.canvas.draw()
|
|
|
|
def _on_button_release(self, event):
|
|
'the release mouse button callback in pan/zoom mode'
|
|
self.canvas.mpl_disconnect(self._motion_notify)
|
|
if not self._xypress: return
|
|
self._xypress = None
|
|
self._button_pressed = None
|
|
self.canvas.draw()
|
|
self.plot.emit('pan-changed', self)
|
|
|
|
|
|
class ZoomPlotMode(PlotMode):
|
|
def __init__(self, plot):
|
|
PlotMode.__init__(self, plot, 'zoom',
|
|
'Zoom to rectangle','zoom_to_rect')
|
|
self._selectors = {}
|
|
|
|
def activate(self):
|
|
self.cids = []
|
|
for ax in self.canvas.figure.get_axes():
|
|
selector = Selector(ax, self._on_select,
|
|
select_type='rectangle')
|
|
selector.line.set_linestyle('-')
|
|
selector.line.set_linewidth(0.5)
|
|
self.cids.append(self.canvas.mpl_connect('button_release_event',
|
|
selector._onrelease))
|
|
self.cids.append(self.canvas.mpl_connect('motion_notify_event',
|
|
selector._onmove))
|
|
self.cids.append(self.canvas.mpl_connect('button_press_event',
|
|
selector._onpress))
|
|
def deactivate(self):
|
|
for cid in self.cids:
|
|
self.canvas.mpl_disconnect(cid)
|
|
|
|
def _on_select(self, x1, y1, x2, y2, key):
|
|
if abs(x1-x2)<0.0001 or abs(y1-y2)<0.0001:
|
|
# too sensitive zoom crashes matplotlib
|
|
return
|
|
ax = self.canvas.figure.get_axes()[0]
|
|
ax.set_xlim((min(x1, x2), max(x1, x2)))
|
|
ax.set_ylim((min(y1,y2), max(y1, y2)))
|
|
self.canvas.draw()
|
|
self.plot.emit('zoom-changed', self)
|
|
|
|
|
|
class SelectLassoPlotMode(PlotMode):
|
|
def __init__(self, plot):
|
|
PlotMode.__init__(self, plot, 'lassoselect',
|
|
'Select within lasso', 'lasso')
|
|
|
|
self._selectors = {}
|
|
|
|
def activate(self):
|
|
self.cids = []
|
|
for ax in self.canvas.figure.get_axes():
|
|
lasso = Selector(ax, self.plot.lasso_select_callback,
|
|
select_type='lasso')
|
|
self.cids.append(self.canvas.mpl_connect('button_release_event',
|
|
lasso._onrelease))
|
|
self.cids.append(self.canvas.mpl_connect('motion_notify_event',
|
|
lasso._onmove))
|
|
self.cids.append(self.canvas.mpl_connect('button_press_event',
|
|
lasso._onpress))
|
|
def deactivate(self):
|
|
for cid in self.cids:
|
|
self.canvas.mpl_disconnect(cid)
|
|
|
|
|
|
class SelectRectanglePlotMode(PlotMode):
|
|
def __init__(self, plot):
|
|
PlotMode.__init__(self, plot, 'select',
|
|
'Select within rectangle', 'select')
|
|
self._selectors = {}
|
|
|
|
def activate(self):
|
|
self.cids = []
|
|
for ax in self.canvas.figure.get_axes():
|
|
lasso = Selector(ax, self.plot.rectangle_select_callback,
|
|
select_type='rectangle')
|
|
self.cids.append(self.canvas.mpl_connect('button_release_event',
|
|
lasso._onrelease))
|
|
self.cids.append(self.canvas.mpl_connect('motion_notify_event',
|
|
lasso._onmove))
|
|
self.cids.append(self.canvas.mpl_connect('button_press_event',
|
|
lasso._onpress))
|
|
def deactivate(self):
|
|
for cid in self.cids:
|
|
self.canvas.mpl_disconnect(cid)
|
|
|
|
|
|
class PlotToolbar(gtk.Toolbar):
|
|
|
|
def __init__(self, plot):
|
|
gtk.Toolbar.__init__(self)
|
|
self.plot = plot
|
|
self.canvas = plot.canvas
|
|
self._current_mode = None
|
|
self.tooltips = gtk.Tooltips()
|
|
self._mode_sensitive = {}
|
|
## Maps toolbar buttons to PlotMode objects.
|
|
self._mode_buttons = {}
|
|
self.set_property('show-arrow', False)
|
|
self.canvas.connect('enter-notify-event', self.on_enter_notify)
|
|
self.show()
|
|
|
|
self.add_mode(DefaultPlotMode(self.plot))
|
|
self.add_mode(PanPlotMode(self.plot))
|
|
self.add_mode(ZoomPlotMode(self.plot))
|
|
self.add_mode(SelectRectanglePlotMode(self.plot))
|
|
self.add_mode(SelectLassoPlotMode(self.plot))
|
|
|
|
self.insert(gtk.SeparatorToolItem(), -1)
|
|
self.set_style(gtk.TOOLBAR_ICONS)
|
|
|
|
# Set up freeze button
|
|
btn = gtk.ToolButton(gtk.STOCK_SAVE)
|
|
|
|
#btn.set_icon_widget(image)
|
|
btn.connect('clicked', self._on_save_clicked)
|
|
self.insert(btn, -1)
|
|
self.save_button = btn
|
|
|
|
# Set up freeze button
|
|
btn = gtk.ToggleToolButton()
|
|
|
|
image = gtk.Image()
|
|
image.set_from_pixbuf(fluents.icon_factory.get('freeze'))
|
|
|
|
btn.set_icon_widget(image)
|
|
btn.connect('toggled', self._on_freeze_toggle)
|
|
self.insert(btn, -1)
|
|
self.freeze_button = btn
|
|
|
|
self.show_all()
|
|
|
|
def add_mode(self, mode):
|
|
"""Adds a new mode to the toolbar."""
|
|
|
|
self._mode_sensitive[mode] = True
|
|
if len(self._mode_buttons) > 0:
|
|
other = self._mode_buttons.keys()[0]
|
|
else:
|
|
other = None
|
|
|
|
btn = gtk.RadioToolButton(other)
|
|
btn.set_icon_widget(mode.get_icon())
|
|
btn.set_tooltip(self.tooltips, mode.tooltip, 'Private')
|
|
btn.connect('toggled', self._on_mode_toggle)
|
|
|
|
self._mode_buttons[btn] = mode
|
|
self.insert(btn, -1)
|
|
|
|
if self._current_mode == None:
|
|
self._current_mode = mode
|
|
|
|
def get_mode(self):
|
|
"""Returns the active mode name."""
|
|
if self._current_mode:
|
|
return self._current_mode.name
|
|
return None
|
|
|
|
def get_mode_by_name(self, mode_name):
|
|
"""Returns the mode with the given name or None."""
|
|
for m in self._mode_buttons.values():
|
|
if m.name == mode_name:
|
|
return m
|
|
return None
|
|
|
|
def get_button(self, mode_name):
|
|
"""Returns the button that corresponds to a mode name."""
|
|
for b, m in self._mode_buttons.items():
|
|
if m.name == mode_name:
|
|
return b
|
|
return None
|
|
|
|
def set_mode(self, mode_name):
|
|
"""Sets a mode by name. Returns the mode or None"""
|
|
if mode_name == self._current_mode.name:
|
|
return None
|
|
|
|
if self._current_mode:
|
|
self._current_mode.deactivate()
|
|
|
|
new_mode = self.get_mode_by_name(mode_name)
|
|
if new_mode:
|
|
new_mode.activate()
|
|
self._current_mode = self.get_mode_by_name(mode_name)
|
|
else:
|
|
logger.log('warning', 'No such mode: %s' % mode_name)
|
|
|
|
if self.get_button(mode_name) and \
|
|
not self.get_button(mode_name).get_active():
|
|
self.get_button(mode_name).set_active(True)
|
|
globals()['active_mode'] = mode_name
|
|
return self._current_mode
|
|
|
|
def set_mode_sensitive(self, mode, bool):
|
|
self._mode_sensitive[mode] = bool
|
|
self.get_button(mode).set_sensitive(False)
|
|
|
|
def _on_mode_toggle(self, button):
|
|
mode = self._mode_buttons[button].name
|
|
if self._mode_sensitive.get(mode) == False:
|
|
logger.log('notice', 'Mode: %s is not sensitive in this plot' %mode)
|
|
if button.get_active():
|
|
self.set_mode(self._mode_buttons[button].name)
|
|
|
|
def _on_save_clicked(self, button):
|
|
"""Pops up a file dialog saver, and saves current plot"""
|
|
dialog = gtk.FileChooserDialog('Save plot')
|
|
dialog.set_action(gtk.FILE_CHOOSER_ACTION_SAVE)
|
|
dialog.add_buttons(gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL, gtk.STOCK_SAVE, gtk.RESPONSE_OK)
|
|
default_name = "fluents_image"
|
|
dialog.set_current_name("%s.png" % default_name)
|
|
retval = dialog.run()
|
|
if retval in [gtk.RESPONSE_CANCEL, gtk.RESPONSE_DELETE_EVENT]:
|
|
logger.log("debug", "Cancelled save plot")
|
|
elif retval == gtk.RESPONSE_OK:
|
|
logger.log("debug", "Saving plot as: %s" % dialog.get_filename())
|
|
self.canvas.print_figure(dialog.get_filename())
|
|
else:
|
|
print "unknown; ", retval
|
|
dialog.destroy()
|
|
|
|
def _on_freeze_toggle(self, button):
|
|
self.plot.set_frozen(button.get_active())
|
|
|
|
def on_enter_notify(self, widget, event):
|
|
self.set_mode(active_mode)
|
|
# need views (plots) to grab key-events
|
|
widget.grab_focus()
|
|
|
|
|
|
class Selector:
|
|
def __init__(self, ax, callback, select_type='lasso'):
|
|
self.drawon = True
|
|
self.eventson = True
|
|
self.select_type = select_type
|
|
self.eventpress = None
|
|
self.eventrelease = None
|
|
self._background = None
|
|
self.callback = callback
|
|
self.axes = ax
|
|
self.figure = self.axes.figure
|
|
self.canvas = self.figure.canvas
|
|
self.verts = []
|
|
# to draw
|
|
patch_props = dict(facecolor='gray', linewidth = 0,
|
|
alpha=0.3, fill=True)
|
|
line_props = dict(linestyle='--', lw=1.0, color='black')
|
|
|
|
self.line = Line2D([0,0], [0,0], visible=False, **line_props)
|
|
self.axes.add_line(self.line)
|
|
if self.select_type == 'lasso':
|
|
self.polygon = Polygon([(0, 0)], visible=False, **patch_props)
|
|
elif self.select_type == 'rectangle':
|
|
self.polygon = Rectangle((0,0), 0, 1, visible=False, **patch_props)
|
|
self.axes.add_patch(self.polygon)
|
|
|
|
def _onrelease(self, event):
|
|
if self.eventpress is None or self._ignore(event):
|
|
return
|
|
|
|
self.eventrelease = event
|
|
self._show_selector(False)
|
|
if self.verts is not None:
|
|
self.verts.append((event.xdata, event.ydata))
|
|
if self.select_type == 'lasso':
|
|
if len(self.verts)>2:
|
|
self.callback(self.verts, event.key)
|
|
elif self.select_type == 'rectangle':
|
|
x1, y1 = self.eventpress.xdata, self.eventpress.ydata
|
|
x2, y2 = self.eventrelease.xdata, self.eventrelease.ydata
|
|
self.callback(x1, y1, x2, y2, event.key)
|
|
|
|
self.verts = []
|
|
self.eventpress = None
|
|
self.eventrelease = None
|
|
self._background = None
|
|
return False
|
|
|
|
def _onmove(self, event):
|
|
if self.eventpress is None or self._ignore(event):return
|
|
|
|
# add new data
|
|
if self.select_type == 'lasso':
|
|
self.verts.append((event.xdata, event.ydata))
|
|
self.polygon.xy = self.verts
|
|
self.line.set_data(zip(*self.verts))
|
|
|
|
elif self.select_type == 'rectangle':
|
|
x,y = event.xdata, event.ydata
|
|
minx, maxx = self.eventpress.xdata, x
|
|
miny, maxy = self.eventpress.ydata, y
|
|
if minx>maxx: minx, maxx = maxx, minx
|
|
if miny>maxy: miny, maxy = maxy, miny
|
|
self.polygon.xy[0] = minx
|
|
self.polygon.xy[1] = miny
|
|
self.polygon.set_width(maxx-minx)
|
|
self.polygon.set_height(maxy-miny)
|
|
xx = [minx, maxx, maxx, minx, minx]
|
|
yy = [miny, miny, maxy, maxy, miny]
|
|
self.line.set_data(xx,yy)
|
|
|
|
# draw
|
|
self.canvas.restore_region(self._background)
|
|
self.axes.draw_artist(self.line)
|
|
self.axes.draw_artist(self.polygon)
|
|
self.canvas.blit(self.axes.bbox)
|
|
|
|
def _onpress(self, event):
|
|
# Is the event to be ignored?
|
|
if self._ignore(event): return
|
|
self._show_selector(True)
|
|
self.eventpress = event
|
|
self.verts = [(event.xdata, event.ydata)]
|
|
return False
|
|
|
|
def _ignore(self, event):
|
|
'return True if event should be ignored'
|
|
ignore = False
|
|
# If no button was pressed yet ignore the event if it was out
|
|
# of the axes
|
|
if self.eventpress == None:
|
|
return event.inaxes!= self.axes
|
|
|
|
# If a button was pressed, check if the release-button is the
|
|
# same.
|
|
ignore = event.inaxes!=self.axes or\
|
|
event.button != self.eventpress.button
|
|
|
|
if ignore:
|
|
# remove poly + line if they are visible
|
|
if self.polygon._visible or self.line._visible:
|
|
self._show_selector(False)
|
|
else:
|
|
if not self.polygon._visible or not self.line._visible:
|
|
# put poly + line back if we event is ok
|
|
self._show_selector(True)
|
|
|
|
return ignore
|
|
|
|
def _show_selector(self, bool):
|
|
if self.polygon and self.line:
|
|
self.polygon.set_visible(bool)
|
|
self.line.set_visible(bool)
|
|
if self._background == None:
|
|
self._background = self.canvas.copy_from_bbox(self.axes.bbox)
|
|
self.canvas.restore_region(self._background)
|
|
self.canvas.blit()
|
|
|
|
|
|
# Create a view-changed signal that should be emitted every time
|
|
# the active view changes.
|
|
gobject.signal_new('view-changed', MainView, gobject.SIGNAL_RUN_LAST,
|
|
gobject.TYPE_NONE,
|
|
(gobject.TYPE_PYOBJECT,))
|
|
|
|
# Create focus-changed signal
|
|
gobject.signal_new('focus-changed', ViewFrame, gobject.SIGNAL_RUN_LAST,
|
|
gobject.TYPE_NONE,
|
|
(gobject.TYPE_PYOBJECT, gobject.TYPE_BOOLEAN,))
|