def _on_keyboard_handler(key, scancode, unicode):
if key is None:
return
win = getWindow()
if key == 282: # F1
toggle('help')
elif key == 283: # F2
win.show_fps = not win.show_fps
elif key == 284: # F3
toggle('cachestat')
elif key == 285: # F4
# rotating between calibration screen
if _toggle_state == 'calibration':
toggle('calibration2')
elif _toggle_state == 'calibration2':
toggle('')
else:
toggle('calibration')
elif key == 286 and _can_fullscreen(): # F5
win.toggle_fullscreen()
elif key == 287: # F6
toggle('log')
elif key == 288: # F7
css_reload()
elif key == 289: # F8
toggle_scene_graph()
elif key == 290: # F9
win.rotation = win.rotation + 90
elif key == 293:
_screenshot()
def toggle_scene_graph():
global _scene_graph_modal_layover
win = getWindow()
if _scene_graph_modal_layover:
win.remove_widget(_scene_graph_modal_layover)
_scene_graph_modal_layover = None
return
else:
scene_graph = SceneGraphNode(node=win.children[0],
size_hint=(None, None))
plane = MTScatterPlane(do_rotation=False)
plane.add_widget(scene_graph)
_scene_graph_modal_layover = MTModalWindow()
_scene_graph_modal_layover.add_widget(plane)
win.add_widget(_scene_graph_modal_layover)
def _screenshot():
import os
import pygame
from kivy.core.gl import glReadBuffer, glReadPixels, GL_RGB, \
GL_UNSIGNED_BYTE, GL_FRONT
win = getWindow()
glReadBuffer(GL_FRONT)
data = glReadPixels(0, 0, win.width, win.height, GL_RGB, GL_UNSIGNED_BYTE)
surface = pygame.image.fromstring(str(buffer(data)), win.size, 'RGB', True)
filename = None
for i in xrange(9999):
path = os.path.join(os.getcwd(), 'screenshot%04d.jpg' % i)
if not os.path.exists(path):
filename = path
break
if filename:
try:
pygame.image.save(surface, filename)
Logger.info('KeyBinding: Screenshot saved at %s' % filename)
except:
Logger.exception('KeyBinding: Unable to take a screenshot')
else:
warn = 'KeyBinding: Unable to take screenshot, no more slot available'
Logger.warning(warn)
def _on_draw():
global _toggle_state
if _toggle_state == '':
return
win = getWindow()
#
# Show HELP screen
#
if _toggle_state == 'help':
# draw the usual window
win.on_draw()
# make background more black
set_color(0, 0, 0, .8)
drawRectangle(size=win.size)
# prepare calculation
w2 = win.width / 2.
h2 = win.height / 2.
y = 0
k = {'font_size': 20}
ydiff = 25
# draw help
drawLabel('Kivy Keybinding',
pos=(w2, win.height - 100), font_size=40)
drawLabel('Press F1 to leave help',
pos=(w2, win.height - 160), font_size=12)
drawLabel('FPS is %.3f' % Clock.get_fps(),
pos=(w2, win.height - 180), font_size=12)
drawLabel('F1 - Show Help',
pos=(w2, h2), **k)
y += ydiff
drawLabel('F2 - Show FPS (%s)' % str(win.show_fps),
pos=(w2, h2 - y), **k)
y += ydiff
drawLabel('F3 - Show Cache state',
pos=(w2, h2 - y), **k)
y += ydiff
drawLabel('F4 - Show Calibration screen',
pos=(w2, h2 - y), **k)
if _can_fullscreen():
y += ydiff
drawLabel('F5 - Toggle fullscreen',
pos=(w2, h2 - y), **k)
y += ydiff
drawLabel('F6 - Show log',
pos=(w2, h2 - y), **k)
y += ydiff
drawLabel('F7 - Reload CSS',
pos=(w2, h2 - y), **k)
y += ydiff
drawLabel('F8 - Show widget tree',
pos=(w2, h2 - y), **k)
y += ydiff
drawLabel('F9 - Rotate the screen (%d)' % win.rotation,
pos=(w2, h2 - y), **k)
y += ydiff
drawLabel('F12 - Screenshot',
pos=(w2, h2 - y), **k)
return True
#
# Draw cache state
#
elif _toggle_state == 'cachestat':
# draw the usual window
win.on_draw()
# make background more black
set_color(0, 0, 0, .8)
drawRectangle(size=win.size)
y = 0
for x in Cache._categories:
y += 25
cat = Cache._categories[x]
count = 0
usage = '-'
limit = cat['limit']
timeout = cat['timeout']
try:
count = len(Cache._objects[x])
except:
pass
try:
usage = 100 * count / limit
except:
pass
args = (x, usage, count, limit, timeout)
drawLabel('%s: usage=%s%% count=%d limit=%s timeout=%s' % args,
pos=(20, 20 + y), font_size=20, center=False, nocache=True)
return True
#
# Draw calibration screen
#
elif _toggle_state == 'calibration':
step = 8
ratio = win.height / float(win.width)
stepx = win.width / step
stepy = win.height / int(step * ratio)
# draw black background
set_color(0, 0, 0)
drawRectangle(size=win.size)
# draw lines
set_color(1, 1, 1)
for x in xrange(0, win.width, stepx):
drawLine((x, 0, x, win.height))
for y in xrange(0, win.height, stepy):
drawLine((0, y, win.width, y))
# draw circles
drawCircle(pos=(win.width / 2., win.height / 2.),
radius=win.width / step, linewidth = 2.)
drawCircle(pos=(win.width / 2., win.height / 2.),
radius=(win.width / step) * 2, linewidth = 2.)
drawCircle(pos=(win.width / 2., win.height / 2.),
radius=(win.width / step) * 3, linewidth = 2.)
return True
#
# Draw calibration screen 2 (colors)
#
elif _toggle_state == 'calibration2':
# draw black background
set_color(0, 0, 0)
drawRectangle(size=win.size)
# gray
step = 25
stepx = (win.width - 100) / step
stepy = stepx * 2
sizew = stepx * step
sizeh = stepy * step
w2 = win.width / 2.
h2 = win.height / 2.
for _x in xrange(step):
x = w2 - sizew / 2. + _x * stepx
drawLabel(chr(65+_x), pos=(x + stepx / 2., h2 + 190))
c = _x / float(step)
# grey
set_color(c, c, c)
drawRectangle(pos=(x, h2 + 100), size=(stepx, stepy))
# red
set_color(c, 0, 0)
drawRectangle(pos=(x, h2 + 80 - stepy), size=(stepx, stepy))
# green
set_color(0, c, 0)
drawRectangle(pos=(x, h2 + 60 - stepy * 2), size=(stepx, stepy))
# blue
set_color(0, 0, c)
drawRectangle(pos=(x, h2 + 40 - stepy * 3), size=(stepx, stepy))
return True
#
# Draw log screen
#
elif _toggle_state == 'log':
# draw the usual window
win.on_draw()
# make background more black
set_color(0, 0, 0, .8)
drawRectangle(size=win.size)
# calculation
w2 = win.width / 2.
h2 = win.height / 2.
k = {'font_size': 11, 'center': False}
y = win.height - 20
y = h2
max = int((h2 / 20))
levels = {
logging.DEBUG: ('DEBUG', (.4, .4, 1)),
logging.INFO: ('INFO', (.4, 1, .4)),
logging.WARNING: ('WARNING', (1, 1, .4)),
logging.ERROR: ('ERROR', (1, .4, .4)),
logging.CRITICAL: ('CRITICAL', (1, .4, .4)), }
# draw title
drawLabel('Kivy logger',
pos=(w2, win.height - 100), font_size=40)
# draw logs
for log in reversed(kivy_logger_history.history[:max]):
levelname, color = levels[log.levelno]
msg = log.message.split('\n')[0]
x = 10
s = drawLabel('[', pos=(x, y), **k)
x += s[0]
s = drawLabel(levelname, pos=(x, y), color=color, **k)
x += s[0]
s = drawLabel(']', pos=(x, y), **k)
x += s[0]
drawLabel(msg, pos=(100, y), **k)
y -= 20
return True