from __future__ import division
import os, sys
def fn_name(): return sys._getframe(1).f_code.co_name
import gobject
import gtk; gdk = gtk.gdk
import pango
pygtk_version_required = (2,2,0)
if gtk.pygtk_version < pygtk_version_required:
raise SystemExit ("PyGTK %d.%d.%d is installed\n"
"PyGTK %d.%d.%d or later is required"
% (gtk.pygtk_version + pygtk_version_required))
del pygtk_version_required
import matplotlib
from matplotlib import verbose
from matplotlib._pylab_helpers import Gcf
from matplotlib.backend_bases import RendererBase, GraphicsContextBase, \
FigureManagerBase, FigureCanvasBase, NavigationToolbar2, cursors
from matplotlib.backends.backend_gdk import RendererGDK, FigureCanvasGDK
from matplotlib.cbook import is_string_like, is_writable_file_like, enumerate
from matplotlib.colors import colorConverter
from matplotlib.figure import Figure
from matplotlib.widgets import SubplotTool
from matplotlib import lines
from matplotlib import cbook
backend_version = "%d.%d.%d" % gtk.pygtk_version
_debug = False
PIXELS_PER_INCH = 96
cursord = {
cursors.MOVE : gdk.Cursor(gdk.FLEUR),
cursors.HAND : gdk.Cursor(gdk.HAND2),
cursors.POINTER : gdk.Cursor(gdk.LEFT_PTR),
cursors.SELECT_REGION : gdk.Cursor(gdk.TCROSS),
}
def GTK_WIDGET_DRAWABLE(w):
flags = w.flags();
return flags & gtk.VISIBLE != 0 and flags & gtk.MAPPED != 0
def draw_if_interactive():
"""
Is called after every pylab drawing command
"""
if matplotlib.is_interactive():
figManager = Gcf.get_active()
if figManager is not None:
figManager.canvas.draw()
def show(mainloop=True):
"""
Show all the figures and enter the gtk main loop
This should be the last line of your script
"""
for manager in Gcf.get_all_fig_managers():
manager.window.show()
if mainloop and gtk.main_level() == 0:
gtk.main()
def new_figure_manager(num, *args, **kwargs):
"""
Create a new figure manager instance
"""
FigureClass = kwargs.pop('FigureClass', Figure)
thisFig = FigureClass(*args, **kwargs)
canvas = FigureCanvasGTK(thisFig)
manager = FigureManagerGTK(canvas, num)
return manager
class FigureCanvasGTK (gtk.DrawingArea, FigureCanvasBase):
keyvald = {65507 : 'control',
65505 : 'shift',
65513 : 'alt',
65508 : 'control',
65506 : 'shift',
65514 : 'alt',
65361 : 'left',
65362 : 'up',
65363 : 'right',
65364 : 'down',
65307 : 'escape',
65470 : 'f1',
65471 : 'f2',
65472 : 'f3',
65473 : 'f4',
65474 : 'f5',
65475 : 'f6',
65476 : 'f7',
65477 : 'f8',
65478 : 'f9',
65479 : 'f10',
65480 : 'f11',
65481 : 'f12',
65300 : 'scroll_lock',
65299 : 'break',
65288 : 'backspace',
65293 : 'enter',
65379 : 'insert',
65535 : 'delete',
65360 : 'home',
65367 : 'end',
65365 : 'pageup',
65366 : 'pagedown',
65438 : '0',
65436 : '1',
65433 : '2',
65435 : '3',
65430 : '4',
65437 : '5',
65432 : '6',
65429 : '7',
65431 : '8',
65434 : '9',
65451 : '+',
65453 : '-',
65450 : '*',
65455 : '/',
65439 : 'dec',
65421 : 'enter',
}
event_mask = (gdk.BUTTON_PRESS_MASK |
gdk.BUTTON_RELEASE_MASK |
gdk.EXPOSURE_MASK |
gdk.KEY_PRESS_MASK |
gdk.KEY_RELEASE_MASK |
gdk.LEAVE_NOTIFY_MASK |
gdk.POINTER_MOTION_MASK |
gdk.POINTER_MOTION_HINT_MASK)
def __init__(self, figure):
if _debug: print 'FigureCanvasGTK.%s' % fn_name()
FigureCanvasBase.__init__(self, figure)
gtk.DrawingArea.__init__(self)
self._idleID = 0
self._need_redraw = True
self._pixmap_width = -1
self._pixmap_height = -1
self._lastCursor = None
self.connect('scroll_event', self.scroll_event)
self.connect('button_press_event', self.button_press_event)
self.connect('button_release_event', self.button_release_event)
self.connect('configure_event', self.configure_event)
self.connect('expose_event', self.expose_event)
self.connect('key_press_event', self.key_press_event)
self.connect('key_release_event', self.key_release_event)
self.connect('motion_notify_event', self.motion_notify_event)
self.set_events(self.__class__.event_mask)
self.set_double_buffered(False)
self.set_flags(gtk.CAN_FOCUS)
self._renderer_init()
def scroll_event(self, widget, event):
if _debug: print 'FigureCanvasGTK.%s' % fn_name()
x = event.x
y = self.allocation.height - event.y
if event.direction==gdk.SCROLL_UP:
direction = 'up'
else:
direction = 'down'
FigureCanvasBase.scroll_event(self, x, y, direction)
return False
def button_press_event(self, widget, event):
if _debug: print 'FigureCanvasGTK.%s' % fn_name()
x = event.x
y = self.allocation.height - event.y
FigureCanvasBase.button_press_event(self, x, y, event.button)
return False
def button_release_event(self, widget, event):
if _debug: print 'FigureCanvasGTK.%s' % fn_name()
x = event.x
y = self.allocation.height - event.y
FigureCanvasBase.button_release_event(self, x, y, event.button)
return False
def key_press_event(self, widget, event):
if _debug: print 'FigureCanvasGTK.%s' % fn_name()
key = self._get_key(event)
if _debug: print "hit", key
FigureCanvasBase.key_press_event(self, key)
return False
def key_release_event(self, widget, event):
if _debug: print 'FigureCanvasGTK.%s' % fn_name()
key = self._get_key(event)
if _debug: print "release", key
FigureCanvasBase.key_release_event(self, key)
return False
def motion_notify_event(self, widget, event):
if _debug: print 'FigureCanvasGTK.%s' % fn_name()
if event.is_hint:
x, y, state = event.window.get_pointer()
else:
x, y, state = event.x, event.y, event.state
y = self.allocation.height - y
FigureCanvasBase.motion_notify_event(self, x, y)
return False
def _get_key(self, event):
if self.keyvald.has_key(event.keyval):
key = self.keyvald[event.keyval]
elif event.keyval <256:
key = chr(event.keyval)
else:
key = None
ctrl = event.state & gdk.CONTROL_MASK
shift = event.state & gdk.SHIFT_MASK
return key
def configure_event(self, widget, event):
if _debug: print 'FigureCanvasGTK.%s' % fn_name()
if widget.window is None:
return
w, h = event.width, event.height
if w < 3 or h < 3:
return
dpi = self.figure.dpi.get()
self.figure.set_size_inches (w/dpi, h/dpi)
self._need_redraw = True
return False
def draw(self):
self._need_redraw = True
if GTK_WIDGET_DRAWABLE(self):
self.queue_draw()
self.window.process_updates (False)
def draw_idle(self):
def idle_draw(*args):
self.draw()
self._idleID = 0
return False
if self._idleID == 0:
self._idleID = gobject.idle_add(idle_draw)
def _renderer_init(self):
"""Override by GTK backends to select a different renderer
Renderer should provide the methods:
set_pixmap ()
set_width_height ()
that are used by
_render_figure() / _pixmap_prepare()
"""
self._renderer = RendererGDK (self, self.figure.dpi)
def _pixmap_prepare(self, width, height):
"""
Make sure _._pixmap is at least width, height,
create new pixmap if necessary
"""
if _debug: print 'FigureCanvasGTK.%s' % fn_name()
create_pixmap = False
if width > self._pixmap_width:
self._pixmap_width = max (int (self._pixmap_width * 1.1),
width)
create_pixmap = True
if height > self._pixmap_height:
self._pixmap_height = max (int (self._pixmap_height * 1.1),
height)
create_pixmap = True
if create_pixmap:
self._pixmap = gdk.Pixmap (self.window, self._pixmap_width,
self._pixmap_height)
self._renderer.set_pixmap (self._pixmap)
def _render_figure(self, pixmap, width, height):
"""used by GTK and GTKcairo. GTKAgg overrides
"""
self._renderer.set_width_height (width, height)
self.figure.draw (self._renderer)
def expose_event(self, widget, event):
"""Expose_event for all GTK backends. Should not be overridden.
"""
if _debug: print 'FigureCanvasGTK.%s' % fn_name()
if GTK_WIDGET_DRAWABLE(self):
if self._need_redraw:
x, y, w, h = self.allocation
self._pixmap_prepare (w, h)
self._render_figure(self._pixmap, w, h)
self._need_redraw = False
x, y, w, h = event.area
self.window.draw_drawable (self.style.fg_gc[self.state],
self._pixmap, x, y, x, y, w, h)
return False
filetypes = FigureCanvasBase.filetypes.copy()
filetypes['jpg'] = 'JPEG'
filetypes['jpeg'] = 'JPEG'
filetypes['png'] = 'Portable Network Graphics'
def print_jpeg(self, filename, *args, **kwargs):
return self._print_image(filename, 'jpeg')
print_jpg = print_jpeg
def print_png(self, filename, *args, **kwargs):
return self._print_image(filename, 'png')
def _print_image(self, filename, format):
if self.flags() & gtk.REALIZED == 0:
gtk.DrawingArea.realize(self)
width, height = self.get_width_height()
pixmap = gdk.Pixmap (self.window, width, height)
self._renderer.set_pixmap (pixmap)
self._render_figure(pixmap, width, height)
pixbuf = gdk.Pixbuf(gdk.COLORSPACE_RGB, 0, 8, width, height)
pixbuf.get_from_drawable(pixmap, pixmap.get_colormap(),
0, 0, 0, 0, width, height)
if is_string_like(filename):
try:
pixbuf.save(filename, format)
except gobject.GError, exc:
error_msg_gtk('Save figure failure:\n%s' % (exc,), parent=self)
elif is_writable_file_like(filename):
if hasattr(pixbuf, 'save_to_callback'):
def save_callback(buf, data=None):
data.write(buf)
try:
pixbuf.save_to_callback(save_callback, format, user_data=filename)
except gobject.GError, exc:
error_msg_gtk('Save figure failure:\n%s' % (exc,), parent=self)
else:
raise ValueError("Saving to a Python file-like object is only supported by PyGTK >= 2.8")
else:
raise ValueError("filename must be a path or a file-like object")
def get_default_filetype(self):
return 'png'
00390 class FigureManagerGTK(FigureManagerBase):
"""
Public attributes
canvas : The FigureCanvas instance
num : The Figure number
toolbar : The gtk.Toolbar (gtk only)
vbox : The gtk.VBox containing the canvas and toolbar (gtk only)
window : The gtk.Window (gtk only)
"""
def __init__(self, canvas, num):
if _debug: print 'FigureManagerGTK.%s' % fn_name()
FigureManagerBase.__init__(self, canvas, num)
self.window = gtk.Window()
self.window.set_title("Figure %d" % num)
self.vbox = gtk.VBox()
self.window.add(self.vbox)
self.vbox.show()
self.canvas.show()
self.canvas.figure.show = lambda *args: self.window.show()
self.vbox.pack_start(self.canvas, True, True)
self.toolbar = self._get_toolbar(canvas)
w = int (self.canvas.figure.bbox.width())
h = int (self.canvas.figure.bbox.height())
if self.toolbar is not None:
self.toolbar.show()
self.vbox.pack_end(self.toolbar, False, False)
tb_w, tb_h = self.toolbar.size_request()
h += tb_h
self.window.set_default_size (w, h)
def destroy(*args):
Gcf.destroy(num)
self.window.connect("destroy", destroy)
self.window.connect("delete_event", destroy)
if matplotlib.is_interactive():
self.window.show()
def notify_axes_change(fig):
'this will be called whenever the current axes is changed'
if self.toolbar is not None: self.toolbar.update()
self.canvas.figure.add_axobserver(notify_axes_change)
self.canvas.grab_focus()
def destroy(self, *args):
if _debug: print 'FigureManagerGTK.%s' % fn_name()
self.window.destroy()
if Gcf.get_num_fig_managers()==0 and \
not matplotlib.is_interactive() and \
gtk.main_level() >= 1:
gtk.main_quit()
def show(self):
self.window.show()
def full_screen_toggle (self):
self._full_screen_flag = not self._full_screen_flag
if self._full_screen_flag:
self.window.fullscreen()
else:
self.window.unfullscreen()
_full_screen_flag = False
def _get_toolbar(self, canvas):
if matplotlib.rcParams['toolbar'] == 'classic':
toolbar = NavigationToolbar (canvas, self.window)
elif matplotlib.rcParams['toolbar'] == 'toolbar2':
toolbar = NavigationToolbar2GTK (canvas, self.window)
else:
toolbar = None
return toolbar
def set_window_title(self, title):
self.window.set_title(title)
def resize(self, width, height):
'set the canvas size in pixels'
self.window.resize(width, height)
class NavigationToolbar2GTK(NavigationToolbar2, gtk.Toolbar):
toolitems = (
('Home', 'Reset original view', 'home.png', 'home'),
('Back', 'Back to previous view','back.png', 'back'),
('Forward', 'Forward to next view','forward.png', 'forward'),
('Pan', 'Pan axes with left mouse, zoom with right', 'move.png','pan'),
('Zoom', 'Zoom to rectangle','zoom_to_rect.png', 'zoom'),
(None, None, None, None),
('Subplots', 'Configure subplots','subplots.png', 'configure_subplots'),
('Save', 'Save the figure','filesave.png', 'save_figure'),
)
def __init__(self, canvas, window):
self.win = window
gtk.Toolbar.__init__(self)
NavigationToolbar2.__init__(self, canvas)
self._idleId = 0
def destroy(*args):
self.fileselect.destroy()
self.connect("destroy", destroy)
def set_message(self, s):
if self._idleId == 0:
self.message.set_label(s)
def set_cursor(self, cursor):
self.canvas.window.set_cursor(cursord[cursor])
def release(self, event):
try: del self._imageBack
except AttributeError: pass
def dynamic_update(self):
self.canvas.draw_idle()
def draw_rubberband(self, event, x0, y0, x1, y1):
'adapted from http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/189744'
drawable = self.canvas.window
if drawable is None:
return
gc = drawable.new_gc()
height = self.canvas.figure.bbox.height()
y1 = height - y1
y0 = height - y0
w = abs(x1 - x0)
h = abs(y1 - y0)
rect = [int(val)for val in min(x0,x1), min(y0, y1), w, h]
try: lastrect, imageBack = self._imageBack
except AttributeError:
if event.inaxes is None:
return
ax = event.inaxes
l,b,w,h = [int(val) for val in ax.bbox.get_bounds()]
b = int(height)-(b+h)
axrect = l,b,w,h
self._imageBack = axrect, drawable.get_image(*axrect)
drawable.draw_rectangle(gc, False, *rect)
self._idleId = 0
else:
def idle_draw(*args):
drawable.draw_image(gc, imageBack, 0, 0, *lastrect)
drawable.draw_rectangle(gc, False, *rect)
self._idleId = 0
return False
if self._idleId == 0:
self._idleId = gobject.idle_add(idle_draw)
def _init_toolbar(self):
self.set_style(gtk.TOOLBAR_ICONS)
if gtk.pygtk_version >= (2,4,0):
self._init_toolbar2_4()
else:
self._init_toolbar2_2()
def _init_toolbar2_2(self):
basedir = os.path.join(matplotlib.rcParams['datapath'],'images')
for text, tooltip_text, image_file, callback in self.toolitems:
if text is None:
self.append_space()
continue
fname = os.path.join(basedir, image_file)
image = gtk.Image()
image.set_from_file(fname)
w = self.append_item(text,
tooltip_text,
'Private',
image,
getattr(self, callback)
)
self.append_space()
self.message = gtk.Label()
self.append_widget(self.message, None, None)
self.message.show()
self.fileselect = FileSelection(title='Save the figure',
parent=self.win,)
def _init_toolbar2_4(self):
basedir = os.path.join(matplotlib.rcParams['datapath'],'images')
self.tooltips = gtk.Tooltips()
for text, tooltip_text, image_file, callback in self.toolitems:
if text is None:
self.insert( gtk.SeparatorToolItem(), -1 )
continue
fname = os.path.join(basedir, image_file)
image = gtk.Image()
image.set_from_file(fname)
tbutton = gtk.ToolButton(image, text)
self.insert(tbutton, -1)
tbutton.connect('clicked', getattr(self, callback))
tbutton.set_tooltip(self.tooltips, tooltip_text, 'Private')
toolitem = gtk.SeparatorToolItem()
self.insert(toolitem, -1)
toolitem.set_draw(False)
toolitem.set_expand(True)
toolitem = gtk.ToolItem()
self.insert(toolitem, -1)
self.message = gtk.Label()
toolitem.add(self.message)
self.show_all()
self.fileselect = FileChooserDialog(
title='Save the figure',
parent=self.win,
filetypes=self.canvas.get_supported_filetypes(),
default_filetype=self.canvas.get_default_filetype())
def save_figure(self, button):
fname, format = self.fileselect.get_filename_from_user()
if fname:
try:
self.canvas.print_figure(fname, format=format)
except Exception, e:
error_msg_gtk(str(e), parent=self)
def configure_subplots(self, button):
toolfig = Figure(figsize=(6,3))
canvas = self._get_canvas(toolfig)
toolfig.subplots_adjust(top=0.9)
tool = SubplotTool(self.canvas.figure, toolfig)
w = int (toolfig.bbox.width())
h = int (toolfig.bbox.height())
window = gtk.Window()
window.set_title("Subplot Configuration Tool")
window.set_default_size(w, h)
vbox = gtk.VBox()
window.add(vbox)
vbox.show()
canvas.show()
vbox.pack_start(canvas, True, True)
window.show()
def _get_canvas(self, fig):
return FigureCanvasGTK(fig)
00677 class NavigationToolbar(gtk.Toolbar):
"""
Public attributes
canvas - the FigureCanvas (gtk.DrawingArea)
win - the gtk.Window
"""
toolitems = (
('Left', 'Pan left with click or wheel mouse (bidirectional)',
gtk.STOCK_GO_BACK, 'panx', -1, True),
('Right', 'Pan right with click or wheel mouse (bidirectional)',
gtk.STOCK_GO_FORWARD, 'panx', 1, True),
('Zoom In X',
'Zoom In X (shrink the x axis limits) with click or wheel'
' mouse (bidirectional)',
gtk.STOCK_ZOOM_IN, 'zoomx', 1, True),
('Zoom Out X',
'Zoom Out X (expand the x axis limits) with click or wheel'
' mouse (bidirectional)',
gtk.STOCK_ZOOM_OUT, 'zoomx', -1, True),
(None, None, None, None, None, None,),
('Up', 'Pan up with click or wheel mouse (bidirectional)',
gtk.STOCK_GO_UP, 'pany', 1, True),
('Down', 'Pan down with click or wheel mouse (bidirectional)',
gtk.STOCK_GO_DOWN, 'pany', -1, True),
('Zoom In Y',
'Zoom in Y (shrink the y axis limits) with click or wheel'
' mouse (bidirectional)',
gtk.STOCK_ZOOM_IN, 'zoomy', 1, True),
('Zoom Out Y',
'Zoom Out Y (expand the y axis limits) with click or wheel'
' mouse (bidirectional)',
gtk.STOCK_ZOOM_OUT, 'zoomy', -1, True),
(None, None, None, None, None, None,),
('Save', 'Save the figure',
gtk.STOCK_SAVE, 'save_figure', None, False),
)
00718 def __init__(self, canvas, window):
"""
figManager is the FigureManagerGTK instance that contains the
toolbar, with attributes figure, window and drawingArea
"""
gtk.Toolbar.__init__(self)
self.canvas = canvas
self.win = window
self.set_style(gtk.TOOLBAR_ICONS)
if gtk.pygtk_version >= (2,4,0):
self._create_toolitems_2_4()
self.update = self._update_2_4
self.fileselect = FileChooserDialog(
title='Save the figure',
parent=self.win,
formats=self.canvas.get_supported_filetypes(),
default_type=self.canvas.get_default_filetype())
else:
self._create_toolitems_2_2()
self.update = self._update_2_2
self.fileselect = FileSelection(title='Save the figure',
parent=self.win)
self.show_all()
self.update()
def destroy(*args):
self.fileselect.destroy()
del self.fileselect
self.connect("destroy", destroy)
def _create_toolitems_2_4(self):
iconSize = gtk.ICON_SIZE_SMALL_TOOLBAR
self.tooltips = gtk.Tooltips()
for text, tooltip_text, image_num, callback, callback_arg, scroll \
in self.toolitems:
if text is None:
self.insert( gtk.SeparatorToolItem(), -1 )
continue
image = gtk.Image()
image.set_from_stock(image_num, iconSize)
tbutton = gtk.ToolButton(image, text)
self.insert(tbutton, -1)
if callback_arg:
tbutton.connect('clicked', getattr(self, callback),
callback_arg)
else:
tbutton.connect('clicked', getattr(self, callback))
if scroll:
tbutton.connect('scroll_event', getattr(self, callback))
tbutton.set_tooltip(self.tooltips, tooltip_text, 'Private')
self.axes_toolitem = gtk.ToolItem()
self.insert(self.axes_toolitem, 0)
self.axes_toolitem.set_tooltip (
self.tooltips,
tip_text='Select axes that controls affect',
tip_private = 'Private')
align = gtk.Alignment (xalign=0.5, yalign=0.5, xscale=0.0, yscale=0.0)
self.axes_toolitem.add(align)
self.menubutton = gtk.Button ("Axes")
align.add (self.menubutton)
def position_menu (menu):
"""Function for positioning a popup menu.
Place menu below the menu button, but ensure it does not go off
the bottom of the screen.
The default is to popup menu at current mouse position
"""
x0, y0 = self.window.get_origin()
x1, y1, m = self.window.get_pointer()
x2, y2 = self.menubutton.get_pointer()
sc_h = self.get_screen().get_height()
w, h = menu.size_request()
x = x0 + x1 - x2
y = y0 + y1 - y2 + self.menubutton.allocation.height
y = min(y, sc_h - h)
return x, y, True
def button_clicked (button, data=None):
self.axismenu.popup (None, None, position_menu, 0,
gtk.get_current_event_time())
self.menubutton.connect ("clicked", button_clicked)
def _update_2_4(self):
self._axes = self.canvas.figure.axes
if len(self._axes) >= 2:
self.axismenu = self._make_axis_menu()
self.menubutton.show_all()
else:
self.menubutton.hide()
self.set_active(range(len(self._axes)))
def _create_toolitems_2_2(self):
iconSize = gtk.ICON_SIZE_SMALL_TOOLBAR
for text, tooltip_text, image_num, callback, callback_arg, scroll \
in self.toolitems:
if text is None:
self.append_space()
continue
image = gtk.Image()
image.set_from_stock(image_num, iconSize)
item = self.append_item(text, tooltip_text, 'Private', image,
getattr(self, callback), callback_arg)
if scroll:
item.connect("scroll_event", getattr(self, callback))
self.omenu = gtk.OptionMenu()
self.omenu.set_border_width(3)
self.insert_widget(
self.omenu,
'Select axes that controls affect',
'Private', 0)
def _update_2_2(self):
self._axes = self.canvas.figure.axes
if len(self._axes) >= 2:
self.omenu.set_menu( self._make_axis_menu() )
self.omenu.show_all()
else:
self.omenu.hide()
self.set_active(range(len(self._axes)))
def _make_axis_menu(self):
def toggled(item, data=None):
if item == self.itemAll:
for item in items: item.set_active(True)
elif item == self.itemInvert:
for item in items:
item.set_active(not item.get_active())
ind = [i for i,item in enumerate(items) if item.get_active()]
self.set_active(ind)
menu = gtk.Menu()
self.itemAll = gtk.MenuItem("All")
menu.append(self.itemAll)
self.itemAll.connect("activate", toggled)
self.itemInvert = gtk.MenuItem("Invert")
menu.append(self.itemInvert)
self.itemInvert.connect("activate", toggled)
items = []
for i in range(len(self._axes)):
item = gtk.CheckMenuItem("Axis %d" % (i+1))
menu.append(item)
item.connect("toggled", toggled)
item.set_active(True)
items.append(item)
menu.show_all()
return menu
def set_active(self, ind):
self._ind = ind
self._active = [ self._axes[i] for i in self._ind ]
00908 def panx(self, button, arg):
"""arg is either user callback data or a scroll event
"""
try:
if arg.direction == gdk.SCROLL_UP: direction=1
else: direction=-1
except AttributeError:
direction = arg
for a in self._active:
a.panx(direction)
self.canvas.draw()
return True
def pany(self, button, arg):
try:
if arg.direction == gdk.SCROLL_UP: direction=1
else: direction=-1
except AttributeError:
direction = arg
for a in self._active:
a.pany(direction)
self.canvas.draw()
return True
def zoomx(self, button, arg):
try:
if arg.direction == gdk.SCROLL_UP: direction=1
else: direction=-1
except AttributeError:
direction = arg
for a in self._active:
a.zoomx(direction)
self.canvas.draw()
return True
def zoomy(self, button, arg):
try:
if arg.direction == gdk.SCROLL_UP: direction=1
else: direction=-1
except AttributeError:
direction = arg
for a in self._active:
a.zoomy(direction)
self.canvas.draw()
return True
def save_figure(self, button):
fname, format = self.fileselect.get_filename_from_user()
if fname:
try:
self.canvas.print_figure(fname, format=format)
except Exception, e:
error_msg_gtk(str(e), parent=self)
if gtk.pygtk_version >= (2,4,0):
00968 class FileChooserDialog(gtk.FileChooserDialog):
"""GTK+ 2.4 file selector which remembers the last file/directory
selected and presents the user with a menu of supported image formats
"""
def __init__ (self,
title = 'Save file',
parent = None,
action = gtk.FILE_CHOOSER_ACTION_SAVE,
buttons = (gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL,
gtk.STOCK_SAVE, gtk.RESPONSE_OK),
path = None,
filetypes = [],
default_filetype = None
):
super (FileChooserDialog, self).__init__ (title, parent, action,
buttons)
self.set_default_response (gtk.RESPONSE_OK)
if not path: path = os.getcwd() + os.sep
self.set_current_folder (path)
self.set_current_name ('image.' + default_filetype)
hbox = gtk.HBox (spacing=10)
hbox.pack_start (gtk.Label ("File Format:"), expand=False)
liststore = gtk.ListStore(gobject.TYPE_STRING)
cbox = gtk.ComboBox(liststore)
cell = gtk.CellRendererText()
cbox.pack_start(cell, True)
cbox.add_attribute(cell, 'text', 0)
hbox.pack_start (cbox)
self.filetypes = filetypes
self.sorted_filetypes = filetypes.items()
self.sorted_filetypes.sort()
default = 0
for i, (ext, name) in enumerate(self.sorted_filetypes):
cbox.append_text ("%s (*.%s)" % (name, ext))
if ext == default_filetype:
default = i
cbox.set_active(default)
self.ext = default_filetype
def cb_cbox_changed (cbox, data=None):
"""File extension changed"""
head, filename = os.path.split(self.get_filename())
root, ext = os.path.splitext(filename)
ext = ext[1:]
new_ext = self.sorted_filetypes[cbox.get_active()][0]
self.ext = new_ext
if ext in self.filetypes:
filename = root + '.' + new_ext
elif ext == '':
filename = filename.rstrip('.') + '.' + new_ext
self.set_current_name (filename)
cbox.connect ("changed", cb_cbox_changed)
hbox.show_all()
self.set_extra_widget(hbox)
def get_filename_from_user (self):
while True:
filename = None
if self.run() != int(gtk.RESPONSE_OK):
break
filename = self.get_filename()
break
self.hide()
return filename, self.ext
else:
01043 class FileSelection(gtk.FileSelection):
"""GTK+ 2.2 and lower file selector which remembers the last
file/directory selected
"""
def __init__(self, path=None, title='Select a file', parent=None):
super(FileSelection, self).__init__(title)
if path: self.path = path
else: self.path = os.getcwd() + os.sep
if parent: self.set_transient_for(parent)
def get_filename_from_user(self, path=None, title=None):
if path: self.path = path
if title: self.set_title(title)
self.set_filename(self.path)
filename = None
if self.run() == int(gtk.RESPONSE_OK):
self.path = filename = self.get_filename()
self.hide()
ext = None
if filename is not None:
ext = os.path.splitext(filename)[1]
if ext.startswith('.'):
ext = ext[1:]
return filename, ext
01073 class DialogLineprops:
"""
A GUI dialog for controlling lineprops
"""
signals = (
'on_combobox_lineprops_changed',
'on_combobox_linestyle_changed',
'on_combobox_marker_changed',
'on_colorbutton_linestyle_color_set',
'on_colorbutton_markerface_color_set',
'on_dialog_lineprops_okbutton_clicked',
'on_dialog_lineprops_cancelbutton_clicked',
)
linestyles = [ls for ls in lines.Line2D.lineStyles if ls.strip()]
linestyled = dict([ (s,i) for i,s in enumerate(linestyles)])
markers = [m for m in lines.Line2D.markers if cbook.is_string_like(m)]
markerd = dict([(s,i) for i,s in enumerate(markers)])
def __init__(self, lines):
import gtk.glade
datadir = matplotlib.get_data_path()
gladefile = os.path.join(datadir, 'lineprops.glade')
if not os.path.exists(gladefile):
raise IOError('Could not find gladefile lineprops.glade in %s'%datadir)
self._inited = False
self._updateson = True
self.wtree = gtk.glade.XML(gladefile, 'dialog_lineprops')
self.wtree.signal_autoconnect(dict([(s, getattr(self, s)) for s in self.signals]))
self.dlg = self.wtree.get_widget('dialog_lineprops')
self.lines = lines
cbox = self.wtree.get_widget('combobox_lineprops')
cbox.set_active(0)
self.cbox_lineprops = cbox
cbox = self.wtree.get_widget('combobox_linestyles')
for ls in self.linestyles:
cbox.append_text(ls)
cbox.set_active(0)
self.cbox_linestyles = cbox
cbox = self.wtree.get_widget('combobox_markers')
for m in self.markers:
cbox.append_text(m)
cbox.set_active(0)
self.cbox_markers = cbox
self._lastcnt = 0
self._inited = True
def show(self):
'populate the combo box'
self._updateson = False
cbox = self.cbox_lineprops
for i in range(self._lastcnt-1,-1,-1):
cbox.remove_text(i)
for line in self.lines:
cbox.append_text(line.get_label())
cbox.set_active(0)
self._updateson = True
self._lastcnt = len(self.lines)
self.dlg.show()
def get_active_line(self):
'get the active line'
ind = self.cbox_lineprops.get_active()
line = self.lines[ind]
return line
def get_active_linestyle(self):
'get the active lineinestyle'
ind = self.cbox_linestyles.get_active()
ls = self.linestyles[ind]
return ls
def get_active_marker(self):
'get the active lineinestyle'
ind = self.cbox_markers.get_active()
m = self.markers[ind]
return m
def _update(self):
'update the active line props from the widgets'
if not self._inited or not self._updateson: return
line = self.get_active_line()
ls = self.get_active_linestyle()
marker = self.get_active_marker()
line.set_linestyle(ls)
line.set_marker(marker)
button = self.wtree.get_widget('colorbutton_linestyle')
color = button.get_color()
r, g, b = [val/65535. for val in color.red, color.green, color.blue]
line.set_color((r,g,b))
button = self.wtree.get_widget('colorbutton_markerface')
color = button.get_color()
r, g, b = [val/65535. for val in color.red, color.green, color.blue]
line.set_markerfacecolor((r,g,b))
line.figure.canvas.draw()
def on_combobox_lineprops_changed(self, item):
'update the widgets from the active line'
if not self._inited: return
self._updateson = False
line = self.get_active_line()
ls = line.get_linestyle()
if ls is None: ls = 'None'
self.cbox_linestyles.set_active(self.linestyled[ls])
marker = line.get_marker()
if marker is None: marker = 'None'
self.cbox_markers.set_active(self.markerd[marker])
r,g,b = colorConverter.to_rgb(line.get_color())
color = gtk.gdk.Color(*[int(val*65535) for val in r,g,b])
button = self.wtree.get_widget('colorbutton_linestyle')
button.set_color(color)
r,g,b = colorConverter.to_rgb(line.get_markerfacecolor())
color = gtk.gdk.Color(*[int(val*65535) for val in r,g,b])
button = self.wtree.get_widget('colorbutton_markerface')
button.set_color(color)
self._updateson = True
def on_combobox_linestyle_changed(self, item):
self._update()
def on_combobox_marker_changed(self, item):
self._update()
def on_colorbutton_linestyle_color_set(self, button):
self._update()
def on_colorbutton_markerface_color_set(self, button):
'called colorbutton marker clicked'
self._update()
def on_dialog_lineprops_okbutton_clicked(self, button):
self._update()
self.dlg.hide()
def on_dialog_lineprops_cancelbutton_clicked(self, button):
self.dlg.hide()
try:
if gtk.pygtk_version < (2, 8, 0):
icon_filename = 'matplotlib.png'
else:
icon_filename = 'matplotlib.svg'
gtk.window_set_default_icon_from_file (
os.path.join (matplotlib.rcParams['datapath'], 'images', icon_filename))
except:
verbose.report('Could not load matplotlib icon: %s' % sys.exc_info()[1])
def error_msg_gtk(msg, parent=None):
if parent is not None:
parent = parent.get_toplevel()
if parent.flags() & gtk.TOPLEVEL == 0:
parent = None
if not is_string_like(msg):
msg = ','.join(map(str,msg))
dialog = gtk.MessageDialog(
parent = parent,
type = gtk.MESSAGE_ERROR,
buttons = gtk.BUTTONS_OK,
message_format = msg)
dialog.run()
dialog.destroy()
FigureManager = FigureManagerGTK