Skip to content

Navigation Menu

Sign in
Appearance settings

Search code, repositories, users, issues, pull requests...

Provide feedback

We read every piece of feedback, and take your input very seriously.

Saved searches

Use saved searches to filter your results more quickly
Appearance settings

Commit 0082466

Browse filesBrowse files
jdh2358jdh2358
committed
factored out default mpl key handling so user interface code could access it; illustrate in gtk, tk and qt examples
1 parent 1cd07a6 commit 0082466
Copy full SHA for 0082466

File tree

Expand file treeCollapse file tree

4 files changed

+191
-92
lines changed
Filter options
Expand file treeCollapse file tree

4 files changed

+191
-92
lines changed

‎examples/user_interfaces/embedding_in_gtk2.py

Copy file name to clipboardExpand all lines: examples/user_interfaces/embedding_in_gtk2.py
+8Lines changed: 8 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -17,6 +17,8 @@
1717
#from matplotlib.backends.backend_gtk import NavigationToolbar2GTK as NavigationToolbar
1818
from matplotlib.backends.backend_gtkagg import NavigationToolbar2GTKAgg as NavigationToolbar
1919

20+
# implement the default mpl key bindings
21+
from matplotlib.backend_bases import key_press_handler
2022

2123
win = gtk.Window()
2224
win.connect("destroy", lambda x: gtk.main_quit())
@@ -40,5 +42,11 @@
4042
vbox.pack_start(toolbar, False, False)
4143

4244

45+
def on_key_event(event):
46+
print('you pressed %s'%event.key)
47+
key_press_handler(event, canvas, toolbar)
48+
49+
canvas.mpl_connect('key_press_event', on_key_event)
50+
4351
win.show_all()
4452
gtk.main()

‎examples/user_interfaces/embedding_in_qt4_wtoolbar.py

Copy file name to clipboard
+63Lines changed: 63 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,63 @@
1+
import sys
2+
import numpy as np
3+
from matplotlib.figure import Figure
4+
from matplotlib.backend_bases import FigureManagerBase, key_press_handler
5+
from PyQt4.QtCore import *
6+
from PyQt4.QtGui import *
7+
8+
from matplotlib.backends.backend_qt4agg import FigureCanvasQTAgg as FigureCanvas
9+
from matplotlib.backends.backend_qt4agg import NavigationToolbar2QTAgg as NavigationToolbar
10+
11+
12+
class AppForm(QMainWindow):
13+
def __init__(self, parent=None):
14+
QMainWindow.__init__(self, parent)
15+
#self.x, self.y = self.get_data()
16+
self.data = self.get_data2()
17+
self.create_main_frame()
18+
self.on_draw()
19+
20+
def create_main_frame(self):
21+
self.main_frame = QWidget()
22+
23+
self.fig = Figure((5.0, 4.0), dpi=100)
24+
self.canvas = FigureCanvas(self.fig)
25+
self.canvas.setParent(self.main_frame)
26+
self.canvas.setFocusPolicy( Qt.ClickFocus )
27+
self.canvas.setFocus()
28+
29+
self.mpl_toolbar = NavigationToolbar(self.canvas, self.main_frame)
30+
31+
self.canvas.mpl_connect('key_press_event', self.on_key_press)
32+
33+
vbox = QVBoxLayout()
34+
vbox.addWidget(self.canvas) # the matplotlib canvas
35+
vbox.addWidget(self.mpl_toolbar)
36+
self.main_frame.setLayout(vbox)
37+
self.setCentralWidget(self.main_frame)
38+
39+
def get_data2(self):
40+
return np.arange(20).reshape([4,5]).copy()
41+
42+
def on_draw(self):
43+
self.fig.clear()
44+
self.axes = self.fig.add_subplot(111)
45+
#self.axes.plot(self.x, self.y, 'ro')
46+
#self.axes.imshow(self.data, interpolation='nearest')
47+
self.axes.plot([1,2,3])
48+
self.canvas.draw()
49+
50+
def on_key_press(self, event):
51+
print 'you pressed', event.key
52+
# implement the default mpl key press events described at
53+
# http://matplotlib.sourceforge.net/users/navigation_toolbar.html#navigation-keyboard-shortcuts
54+
key_press_handler(event, self.canvas, self.mpl_toolbar)
55+
56+
def main():
57+
app = QApplication(sys.argv)
58+
form = AppForm()
59+
form.show()
60+
app.exec_()
61+
62+
if __name__ == "__main__":
63+
main()

‎examples/user_interfaces/embedding_in_tk.py

Copy file name to clipboardExpand all lines: examples/user_interfaces/embedding_in_tk.py
+10Lines changed: 10 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -5,6 +5,10 @@
55

66
from numpy import arange, sin, pi
77
from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg, NavigationToolbar2TkAgg
8+
# implement the default mpl key bindings
9+
from matplotlib.backend_bases import key_press_handler
10+
11+
812
from matplotlib.figure import Figure
913

1014
import sys
@@ -34,6 +38,12 @@
3438
toolbar.update()
3539
canvas._tkcanvas.pack(side=Tk.TOP, fill=Tk.BOTH, expand=1)
3640

41+
def on_key_event(event):
42+
print('you pressed %s'%event.key)
43+
key_press_handler(event, canvas, toolbar)
44+
45+
canvas.mpl_connect('key_press_event', on_key_event)
46+
3747
def _quit():
3848
root.quit() # stops mainloop
3949
root.destroy() # this is necessary on Windows to prevent

‎lib/matplotlib/backend_bases.py

Copy file name to clipboardExpand all lines: lib/matplotlib/backend_bases.py
+110-92Lines changed: 110 additions & 92 deletions
Original file line numberDiff line numberDiff line change
@@ -1436,7 +1436,7 @@ def __init__(self, figure):
14361436
self.button_pick_id = self.mpl_connect('button_press_event',self.pick)
14371437
self.scroll_pick_id = self.mpl_connect('scroll_event',self.pick)
14381438
self.mouse_grabber = None # the axes currently grabbing mouse
1439-
1439+
self.toolbar = None # NavigationToolbar2 will set me
14401440
if False:
14411441
## highlight the artists that are hit
14421442
self.mpl_connect('motion_notify_event',self.onHilite)
@@ -2213,6 +2213,110 @@ def stop_event_loop_default(self):
22132213
self._looping = False
22142214

22152215

2216+
def key_press_handler(event, canvas, toolbar=None):
2217+
"""
2218+
Implement the default mpl key bindings for the canvas and toolbar
2219+
described at :ref:`navigation-keyboard-shortcuts`
2220+
2221+
*event*
2222+
a :class:`KeyEvent` instance
2223+
*canvas*
2224+
a :class:`FigureCanvasBase` instance
2225+
*toolbar*
2226+
a class:`NavigationToolbar2` instance
2227+
2228+
"""
2229+
# these bindings happen whether you are over an axes or not
2230+
#if event.key == 'q':
2231+
# self.destroy() # how cruel to have to destroy oneself!
2232+
# return
2233+
2234+
if event.key is None:
2235+
return
2236+
2237+
# Load key-mappings from your matplotlibrc file.
2238+
fullscreen_keys = rcParams['keymap.fullscreen']
2239+
home_keys = rcParams['keymap.home']
2240+
back_keys = rcParams['keymap.back']
2241+
forward_keys = rcParams['keymap.forward']
2242+
pan_keys = rcParams['keymap.pan']
2243+
zoom_keys = rcParams['keymap.zoom']
2244+
save_keys = rcParams['keymap.save']
2245+
grid_keys = rcParams['keymap.grid']
2246+
toggle_yscale_keys = rcParams['keymap.yscale']
2247+
toggle_xscale_keys = rcParams['keymap.xscale']
2248+
all = rcParams['keymap.all_axes']
2249+
2250+
# toggle fullscreen mode (default key 'f')
2251+
if event.key in fullscreen_keys:
2252+
self.full_screen_toggle()
2253+
2254+
if toolbar is not None:
2255+
# home or reset mnemonic (default key 'h', 'home' and 'r')
2256+
if event.key in home_keys:
2257+
toolbar.home()
2258+
# forward / backward keys to enable left handed quick navigation
2259+
# (default key for backward: 'left', 'backspace' and 'c')
2260+
elif event.key in back_keys:
2261+
toolbar.back()
2262+
# (default key for forward: 'right' and 'v')
2263+
elif event.key in forward_keys:
2264+
toolbar.forward()
2265+
# pan mnemonic (default key 'p')
2266+
elif event.key in pan_keys:
2267+
toolbar.pan()
2268+
# zoom mnemonic (default key 'o')
2269+
elif event.key in zoom_keys:
2270+
toolbar.zoom()
2271+
# saving current figure (default key 's')
2272+
elif event.key in save_keys:
2273+
toolbar.save_figure()
2274+
2275+
if event.inaxes is None:
2276+
return
2277+
2278+
# the mouse has to be over an axes to trigger these
2279+
# switching on/off a grid in current axes (default key 'g')
2280+
if event.key in grid_keys:
2281+
event.inaxes.grid()
2282+
canvas.draw()
2283+
# toggle scaling of y-axes between 'log and 'linear' (default key 'l')
2284+
elif event.key in toggle_yscale_keys:
2285+
ax = event.inaxes
2286+
scale = ax.get_yscale()
2287+
if scale == 'log':
2288+
ax.set_yscale('linear')
2289+
ax.figure.canvas.draw()
2290+
elif scale == 'linear':
2291+
ax.set_yscale('log')
2292+
ax.figure.canvas.draw()
2293+
# toggle scaling of x-axes between 'log and 'linear' (default key 'k')
2294+
elif event.key in toggle_xscale_keys:
2295+
ax = event.inaxes
2296+
scalex = ax.get_xscale()
2297+
if scalex == 'log':
2298+
ax.set_xscale('linear')
2299+
ax.figure.canvas.draw()
2300+
elif scalex == 'linear':
2301+
ax.set_xscale('log')
2302+
ax.figure.canvas.draw()
2303+
2304+
elif (event.key.isdigit() and event.key!='0') or event.key in all:
2305+
# keys in list 'all' enables all axes (default key 'a'),
2306+
# otherwise if key is a number only enable this particular axes
2307+
# if it was the axes, where the event was raised
2308+
if not (event.key in all):
2309+
n = int(event.key)-1
2310+
for i, a in enumerate(canvas.figure.get_axes()):
2311+
# consider axes, in which the event was raised
2312+
# FIXME: Why only this axes?
2313+
if event.x is not None and event.y is not None \
2314+
and a.in_axes(event):
2315+
if event.key in all:
2316+
a.set_navigate(True)
2317+
else:
2318+
a.set_navigate(i==n)
2319+
22162320

22172321
class FigureManagerBase:
22182322
"""
@@ -2244,97 +2348,11 @@ def resize(self, w, h):
22442348
pass
22452349

22462350
def key_press(self, event):
2247-
2248-
# these bindings happen whether you are over an axes or not
2249-
#if event.key == 'q':
2250-
# self.destroy() # how cruel to have to destroy oneself!
2251-
# return
2252-
2253-
if event.key is None:
2254-
return
2255-
2256-
# Load key-mappings from your matplotlibrc file.
2257-
fullscreen_keys = rcParams['keymap.fullscreen']
2258-
home_keys = rcParams['keymap.home']
2259-
back_keys = rcParams['keymap.back']
2260-
forward_keys = rcParams['keymap.forward']
2261-
pan_keys = rcParams['keymap.pan']
2262-
zoom_keys = rcParams['keymap.zoom']
2263-
save_keys = rcParams['keymap.save']
2264-
grid_keys = rcParams['keymap.grid']
2265-
toggle_yscale_keys = rcParams['keymap.yscale']
2266-
toggle_xscale_keys = rcParams['keymap.xscale']
2267-
all = rcParams['keymap.all_axes']
2268-
2269-
# toggle fullscreen mode (default key 'f')
2270-
if event.key in fullscreen_keys:
2271-
self.full_screen_toggle()
2272-
2273-
# home or reset mnemonic (default key 'h', 'home' and 'r')
2274-
elif event.key in home_keys:
2275-
self.canvas.toolbar.home()
2276-
# forward / backward keys to enable left handed quick navigation
2277-
# (default key for backward: 'left', 'backspace' and 'c')
2278-
elif event.key in back_keys:
2279-
self.canvas.toolbar.back()
2280-
# (default key for forward: 'right' and 'v')
2281-
elif event.key in forward_keys:
2282-
self.canvas.toolbar.forward()
2283-
# pan mnemonic (default key 'p')
2284-
elif event.key in pan_keys:
2285-
self.canvas.toolbar.pan()
2286-
# zoom mnemonic (default key 'o')
2287-
elif event.key in zoom_keys:
2288-
self.canvas.toolbar.zoom()
2289-
# saving current figure (default key 's')
2290-
elif event.key in save_keys:
2291-
self.canvas.toolbar.save_figure()
2292-
2293-
if event.inaxes is None:
2294-
return
2295-
2296-
# the mouse has to be over an axes to trigger these
2297-
# switching on/off a grid in current axes (default key 'g')
2298-
if event.key in grid_keys:
2299-
event.inaxes.grid()
2300-
self.canvas.draw()
2301-
# toggle scaling of y-axes between 'log and 'linear' (default key 'l')
2302-
elif event.key in toggle_yscale_keys:
2303-
ax = event.inaxes
2304-
scale = ax.get_yscale()
2305-
if scale == 'log':
2306-
ax.set_yscale('linear')
2307-
ax.figure.canvas.draw()
2308-
elif scale == 'linear':
2309-
ax.set_yscale('log')
2310-
ax.figure.canvas.draw()
2311-
# toggle scaling of x-axes between 'log and 'linear' (default key 'k')
2312-
elif event.key in toggle_xscale_keys:
2313-
ax = event.inaxes
2314-
scalex = ax.get_xscale()
2315-
if scalex == 'log':
2316-
ax.set_xscale('linear')
2317-
ax.figure.canvas.draw()
2318-
elif scalex == 'linear':
2319-
ax.set_xscale('log')
2320-
ax.figure.canvas.draw()
2321-
2322-
elif (event.key.isdigit() and event.key!='0') or event.key in all:
2323-
# keys in list 'all' enables all axes (default key 'a'),
2324-
# otherwise if key is a number only enable this particular axes
2325-
# if it was the axes, where the event was raised
2326-
if not (event.key in all):
2327-
n = int(event.key)-1
2328-
for i, a in enumerate(self.canvas.figure.get_axes()):
2329-
# consider axes, in which the event was raised
2330-
# FIXME: Why only this axes?
2331-
if event.x is not None and event.y is not None \
2332-
and a.in_axes(event):
2333-
if event.key in all:
2334-
a.set_navigate(True)
2335-
else:
2336-
a.set_navigate(i==n)
2337-
2351+
"""
2352+
implement the default mpl key bindings defined at
2353+
:ref:`navigation-keyboard-shortcuts`
2354+
"""
2355+
key_press_handler(event, self.canvas, self.canvas.toolbar)
23382356

23392357
def show_popup(self, msg):
23402358
"""

0 commit comments

Comments
0 (0)
Morty Proxy This is a proxified and sanitized view of the page, visit original site.