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#!/usr/bin/env python
"""Graphically show all devices available via the pyglet.input interface.
Each device is shown in its own collapsed panel. Click on a device panel
to expand it, revealing that device's controls. The controls show the
current live values, and flash white when the value changes.
"""
from __future__ import print_function
__docformat__ = 'restructuredtext'
__version__ = '$Id: $'
import pyglet
from pyglet import gl
class LineGroup(pyglet.graphics.OrderedGroup):
def set_state(self):
gl.glPolygonMode(gl.GL_FRONT_AND_BACK, gl.GL_LINE)
def unset_state(self):
gl.glPolygonMode(gl.GL_FRONT_AND_BACK, gl.GL_FILL)
class Box:
def __init__(self, batch, group=None,
stroke_color=(255, 255, 255, 255),
fill_color=(200, 200, 200, 255)):
self.x1 = 0
self.y1 = 0
self.x2 = 0
self.y2 = 0
self.fill_vertices = batch.add(4, gl.GL_QUADS,
pyglet.graphics.OrderedGroup(0, group),
'v2f', ('c4B', fill_color * 4))
self.stroke_vertices = batch.add(4, gl.GL_QUADS,
LineGroup(1, group),
'v2f', ('c4B', stroke_color * 4))
def set_bounds(self, x1, y1, x2, y2):
self.x1 = 0
self.y1 = 0
self.x2 = 0
self.y2 = 0
self.fill_vertices.vertices[:] = (x1, y1, x2, y1, x2, y2, x1, y2)
self.stroke_vertices.vertices[:] = (x1, y1, x2, y1, x2, y2, x1 - 1, y2)
def set_fill(self, r, g, b):
self.fill_vertices.colors[:] = (r, g, b, 255) * 4
def delete(self):
self.fill_vertices.delete()
self.stroke_vertices.delete()
class DevicePanel:
BORDER_MARGIN = 5
CONTENT_MARGIN = 8
def __init__(self, device):
self.device = device
self.box = Box(batch, group=background_group,
stroke_color=(0, 0, 200, 255),
fill_color=(200, 200, 255, 255))
self.name_label = pyglet.text.Label(device.name or 'Unknown device',
font_size=10,
color=(0, 0, 0, 255),
anchor_y='top',
batch=batch, group=text_group)
self.manufacturer_label = pyglet.text.Label(device.manufacturer or '',
font_size=10,
color=(0, 0, 0, 255), anchor_x='right',
anchor_y='top',
batch=batch, group=text_group)
self.is_open = False
self.widgets = []
def set_bounds(self, left, right, top):
self.left = left
self.right = right
self.top = top
self.layout()
def layout_widgets(self):
max_row_width = self.right - self.left - self.CONTENT_MARGIN * 2
row = []
row_width = 0
row_height = 0
def layout_row(row, x1, y1, x2, y2):
x = x1
for widget in row:
widget.set_bounds(x,
y1,
x + widget.min_width,
y1 + widget.min_height)
x += widget.min_width
y = self.bottom + self.CONTENT_MARGIN
for widget in self.widgets:
if widget is None or row_width + widget.min_width > max_row_width:
layout_row(row,
self.left + self.CONTENT_MARGIN,
y - row_height,
self.right - self.CONTENT_MARGIN,
y)
row = []
y -= row_height
row_width = 0
if widget is None:
break
row.append(widget)
row_width += widget.min_width
row_height = max(row_height, widget.min_height)
self.bottom = y - self.CONTENT_MARGIN
def layout(self):
self.title_bottom = self.top - \
self.name_label.content_height - self.CONTENT_MARGIN * 2
self.bottom = self.title_bottom
if self.is_open:
self.layout_widgets()
self.box.set_bounds(self.left + self.BORDER_MARGIN,
self.bottom + self.BORDER_MARGIN,
self.right - self.BORDER_MARGIN,
self.top - self.BORDER_MARGIN)
self.name_label.x = self.left + self.CONTENT_MARGIN
self.name_label.y = self.top - self.CONTENT_MARGIN
self.manufacturer_label.x = self.right - self.CONTENT_MARGIN
self.manufacturer_label.y = self.top - self.CONTENT_MARGIN
def hit_test(self, x, y):
return self.left < x < self.right and self.title_bottom < y < self.top
def toggle(self):
if self.is_open:
self.close()
else:
self.open()
def open(self):
if self.is_open:
return
try:
self.device.open()
except pyglet.input.DeviceException as e:
try:
self.device.open(window)
except pyglet.input.DeviceException as e:
print(e) # TODO show error
return
window.set_mouse_cursor(window.get_system_mouse_cursor('wait'))
for control in self.device.get_controls():
if isinstance(control, pyglet.input.Button):
widget = ButtonWidget(control, batch, group=text_group)
else:
widget = ControlWidget(control, batch, group=text_group)
self.widgets.append(widget)
if not self.widgets:
self.widgets.append(NoControlsWidget(batch, group=text_group))
self.widgets.append(None)
window.set_mouse_cursor(None)
self.is_open = True
def close(self):
if not self.is_open:
return
for widget in self.widgets:
if widget:
widget.delete()
del self.widgets[:]
self.device.close()
self.is_open = False
class ControlWidget:
BORDER_MARGIN = 2
CONTENT_MARGIN = 4
def __init__(self, control, batch, group=None):
self.control_name = control.name
if not self.control_name:
self.control_name = control.raw_name
self.box = Box(batch, pyglet.graphics.OrderedGroup(0, group))
self.name_label = pyglet.text.Label(self.control_name,
font_size=10,
anchor_x='left',
anchor_y='bottom',
color=(0, 0, 0, 255),
batch=batch,
group=pyglet.graphics.OrderedGroup(1, group))
self.value_label = pyglet.text.Label(' ',
font_size=8,
anchor_x='right',
anchor_y='bottom',
color=(0, 0, 0, 255),
batch=batch,
group=pyglet.graphics.OrderedGroup(1, group))
self.min_width = \
self.name_label.content_width + \
self.value_label.content_width + self.CONTENT_MARGIN * 2
self.min_height = self.name_label.content_height + self.CONTENT_MARGIN * 2
self.relative = isinstance(control, pyglet.input.RelativeAxis)
self.fade = 200
self.control = control
control.push_handlers(self)
def set_bounds(self, x1, y1, x2, y2):
self.box.set_bounds(
x1 + self.BORDER_MARGIN,
y1 + self.BORDER_MARGIN,
x2 - self.BORDER_MARGIN,
y2 - self.BORDER_MARGIN)
self.name_label.x = x1 + self.CONTENT_MARGIN
self.name_label.y = y1 + self.CONTENT_MARGIN
self.value_label.x = x2 - self.CONTENT_MARGIN
self.value_label.y = y1 + self.CONTENT_MARGIN
def delete(self):
if self in changed_widgets:
changed_widgets.remove(self)
self.control.remove_handlers(self)
self.name_label.delete()
self.value_label.delete()
self.box.delete()
def on_change(self, value):
self.value = value
self.fade = 255
changed_widgets.add(self)
def update(self):
self.value_label.text = str(self.value)
if self.relative and self.value:
self.value = 0
changed_widgets.add(self)
self.box.set_fill(self.fade, self.fade, self.fade)
if self.fade > 200:
self.fade = max(200, self.fade - 10)
changed_widgets.add(self)
class ButtonWidget(ControlWidget):
BORDER_MARGIN = 2
CONTENT_MARGIN = 4
def __init__(self, control, batch, group=None):
self.control_name = control.name
if not self.control_name:
self.control_name = control.raw_name
self.box = Box(batch, pyglet.graphics.OrderedGroup(0, group))
self.name_label = pyglet.text.Label(self.control_name,
font_size=10,
anchor_x='center',
anchor_y='bottom',
color=(0, 0, 0, 255),
batch=batch,
group=pyglet.graphics.OrderedGroup(1, group))
self.min_width = self.name_label.content_width + self.CONTENT_MARGIN * 2
self.min_height = self.name_label.content_height + self.CONTENT_MARGIN * 2
self.fade = 200
self.control = control
control.push_handlers(self)
def set_bounds(self, x1, y1, x2, y2):
self.box.set_bounds(
x1 + self.BORDER_MARGIN,
y1 + self.BORDER_MARGIN,
x2 - self.BORDER_MARGIN,
y2 - self.BORDER_MARGIN)
self.name_label.x = (x1 + x2) // 2
self.name_label.y = y1 + self.CONTENT_MARGIN
def delete(self):
if self in changed_widgets:
changed_widgets.remove(self)
self.control.remove_handlers(self)
self.name_label.delete()
self.box.delete()
def on_change(self, value):
self.value = value
if value:
self.fade = 255
changed_widgets.add(self)
def update(self):
self.box.set_fill(self.fade, self.fade, self.fade)
if not self.value and self.fade > 200:
self.fade = max(200, self.fade - 10)
changed_widgets.add(self)
class NoControlsWidget:
CONTENT_MARGIN = 4
def __init__(self, batch, group):
self.label = pyglet.text.Label('No controls on this device.',
font_size=10,
color=(0, 0, 0, 255),
anchor_y='bottom',
batch=batch,
group=group)
self.min_width = self.label.content_width + self.CONTENT_MARGIN * 2
self.min_height = self.label.content_height + self.CONTENT_MARGIN * 2
def set_bounds(self, x1, y1, x2, y2):
self.label.x = x1 + ControlWidget.CONTENT_MARGIN
self.label.y = y1 + ControlWidget.CONTENT_MARGIN
def delete(self):
self.label.delete()
window = pyglet.window.Window(caption='Input Devices', resizable=True)
batch = pyglet.graphics.Batch()
background_group = pyglet.graphics.OrderedGroup(0)
text_group = pyglet.graphics.OrderedGroup(1)
panels = [DevicePanel(device) for device in pyglet.input.get_devices()]
help_label = pyglet.text.Label(
'Click on a device name to show or hide its controls.',
x=DevicePanel.CONTENT_MARGIN,
anchor_y='top',
font_size=10,
color=(255, 255, 255, 255),
batch=batch,
group=background_group)
def layout_panels():
y = window.height
for panel in panels:
panel.set_bounds(left=0, right=window.width, top=y)
y = panel.bottom
help_label.y = y
@window.event
def on_draw():
gl.glClearColor(0.3, 0.3, 0.4, 1.0)
window.clear()
batch.draw()
window.invalid = False
@window.event
def on_resize(width, height):
layout_panels()
window.invalid = True
return pyglet.event.EVENT_UNHANDLED
@window.event
def on_mouse_press(x, y, button, modifiers):
for panel in panels:
if panel.hit_test(x, y):
panel.toggle()
layout_panels()
window.invalid = True
changed_widgets = set()
def update(dt):
pending = list(changed_widgets)
changed_widgets.clear()
for widget in pending:
widget.update()
window.invalid = True
pyglet.clock.schedule_interval(update, 0.05)
pyglet.app.run()
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