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Taddeüs Kroes
multitouch
Commits
2632de45
Commit
2632de45
authored
May 30, 2012
by
Taddeus Kroes
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Rewritten test file draw.py using trackers.
parent
bda8ed3f
Changes
3
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3 changed files
with
174 additions
and
25 deletions
+174
-25
src/trackers/transform.py
src/trackers/transform.py
+6
-0
tests/draw.py
tests/draw.py
+167
-0
tests/transform.py
tests/transform.py
+1
-25
No files found.
src/trackers/transform.py
View file @
2632de45
...
...
@@ -84,6 +84,9 @@ class RotationGesture(Positionable, Gesture):
return
'<RotationGesture at (%s, %s) angle=%s>'
\
%
(
self
.
x
,
self
.
y
,
self
.
angle
)
def
get_angle
(
self
):
return
self
.
angle
class
PinchGesture
(
Positionable
,
Gesture
):
"""
...
...
@@ -100,6 +103,9 @@ class PinchGesture(Positionable, Gesture):
return
'<PinchGesture at (%s, %s) scale=%s>'
\
%
(
self
.
x
,
self
.
y
,
self
.
scale
)
def
get_scale
(
self
):
return
self
.
scale
class
MovementGesture
(
Positionable
,
Gesture
):
"""
...
...
tests/draw.py
0 → 100644
View file @
2632de45
#!/usr/bin/env python
from
__future__
import
division
import
pygame
import
sys
import
time
from
threading
import
Thread
from
math
import
degrees
,
cos
,
sin
from
src.server
import
GestureServer
from
src.window
import
FullscreenWindow
from
src.trackers.transform
import
TransformationTracker
from
src.trackers.tap
import
TapTracker
from
src.screen
import
screen_size
import
tests.parse_arguments
pygame
.
init
()
FULLSCREEN
=
'-f'
in
sys
.
argv
[
1
:]
# Config
FINGER_RADIUS
=
20
CENTROID_RADIUS
=
15
W
,
H
=
screen_size
if
FULLSCREEN
else
(
640
,
480
)
BG_COLOR
=
0
,
0
,
0
LINE_COLOR
=
128
,
128
,
128
CIRCLE_COLOR
=
255
,
255
,
255
RECT_COLOR
=
0
,
200
,
0
RECT_POS
=
W
/
2
,
H
/
2
RECT_SIZE
=
W
/
6.
,
H
/
6.
TAP_RADIUS
=
65
TAP_INCREMENT
=
.
3
BEAM_COLOR
=
255
,
50
,
50
BEAM_LENGTH
=
50
BEAM_WIDTH
=
3
BEAM_INCREMENT
=
.
8
MAX_SCALE
=
10
# Create canvas GUI
flags
=
pygame
.
FULLSCREEN
if
FULLSCREEN
else
0
screen
=
pygame
.
display
.
set_mode
((
W
,
H
),
flags
)
def
coord
(
x
,
y
):
w
,
h
=
screen_size
return
int
(
round
(
W
/
w
*
x
)),
int
(
round
(
H
/
h
*
y
))
# Global state
angle
=
0
scale
=
1
taps
=
[]
dtaps
=
[]
def
update
():
global
taps
,
dtaps
# Clear previous frame
screen
.
fill
(
BG_COLOR
)
# Apply scale and rotation to a fixed-size rectangle canvas
canvas
=
pygame
.
Surface
(
RECT_SIZE
)
canvas
.
fill
(
RECT_COLOR
)
transformed
=
pygame
.
transform
.
rotozoom
(
canvas
,
degrees
(
angle
),
scale
)
rect
=
transformed
.
get_rect
()
rect
.
center
=
W
/
2
,
H
/
2
screen
.
blit
(
transformed
,
rect
)
# Draw touch points
if
transform
.
centroid
:
c
=
coord
(
*
transform
.
centroid
.
xy
)
for
p
in
server
.
points
.
itervalues
():
xy
=
coord
(
p
.
x
,
p
.
y
)
# Draw line to centroid
if
transform
.
centroid
:
pygame
.
draw
.
line
(
screen
,
LINE_COLOR
,
xy
,
c
,
1
)
# Draw outlined circle around touch point
pygame
.
draw
.
circle
(
screen
,
CIRCLE_COLOR
,
xy
,
FINGER_RADIUS
,
1
)
# Fill filled circle with background color within the outline
pygame
.
draw
.
circle
(
screen
,
BG_COLOR
,
xy
,
FINGER_RADIUS
-
1
,
0
)
# Draw filled circle around centroid
if
transform
.
centroid
:
pygame
.
draw
.
circle
(
screen
,
CIRCLE_COLOR
,
c
,
CENTROID_RADIUS
)
# Draw an expanding circle around each tap event
taps
=
filter
(
lambda
(
xy
,
r
):
r
<=
TAP_RADIUS
,
taps
)
for
tap
in
taps
:
xy
,
radius
=
tap
pygame
.
draw
.
circle
(
screen
,
CIRCLE_COLOR
,
xy
,
int
(
radius
),
2
)
# Increment radius
tap
[
1
]
+=
TAP_INCREMENT
# Shoot a beam from each double tap event to the left
dtaps
=
filter
(
lambda
(
x
,
y
,
s
):
0
<=
x
<=
W
,
dtaps
)
for
dtap
in
dtaps
:
x
,
y
,
single
=
dtap
if
single
:
start_x
=
x
end_x
=
x
+
BEAM_LENGTH
dtap
[
0
]
+=
BEAM_INCREMENT
else
:
start_x
=
x
-
BEAM_LENGTH
end_x
=
x
dtap
[
0
]
-=
BEAM_INCREMENT
pygame
.
draw
.
line
(
screen
,
BEAM_COLOR
,
(
start_x
,
y
),
(
end_x
,
y
),
BEAM_WIDTH
)
# Update canvas
pygame
.
display
.
flip
()
# Create server and fullscreen window
server
=
GestureServer
()
win
=
FullscreenWindow
(
server
=
server
)
# Bind trackers
def
rotate
(
gesture
):
global
angle
angle
+=
gesture
.
get_angle
()
def
pinch
(
gesture
):
global
scale
scale
=
min
(
scale
*
gesture
.
get_scale
(),
MAX_SCALE
)
transform
=
TransformationTracker
(
win
)
transform
.
bind
(
'rotate'
,
rotate
)
transform
.
bind
(
'pinch'
,
pinch
)
tap
=
TapTracker
(
win
)
tap
.
bind
(
'tap'
,
lambda
g
:
taps
.
append
([
coord
(
*
g
.
xy
),
FINGER_RADIUS
]))
tap
.
bind
(
'single_tap'
,
lambda
g
:
dtaps
.
append
(
list
(
coord
(
*
g
.
xy
))
+
[
1
]))
tap
.
bind
(
'double_tap'
,
lambda
g
:
dtaps
.
append
(
list
(
coord
(
*
g
.
xy
))
+
[
0
]))
try
:
# Start touch gesture server in separate thread
thread
=
Thread
(
target
=
server
.
start
)
thread
.
daemon
=
True
thread
.
start
()
# Start GUI event loop
def
is_quit_event
(
e
):
return
e
.
type
==
pygame
.
QUIT
\
or
(
e
.
type
==
pygame
.
KEYDOWN
and
e
.
key
==
ord
(
'q'
))
while
not
any
(
filter
(
is_quit_event
,
pygame
.
event
.
get
())):
update
()
except
KeyboardInterrupt
:
pass
finally
:
server
.
stop
()
tests/transform.py
View file @
2632de45
import
argparse
import
logging
from
src.server
import
GestureServer
from
src.window
import
FullscreenWindow
from
src.trackers.transform
import
TransformationTracker
from
src.logger
import
Logger
# Parse arguments
parser
=
argparse
.
ArgumentParser
(
description
=
'Basic test program for usage '
'of multi-touch API.'
)
parser
.
add_argument
(
'--log'
,
metavar
=
'LOG_LEVEL'
,
default
=
'INFO'
,
choices
=
[
'DEBUG'
,
'INFO'
,
'WARNING'
],
help
=
'set log level (defaults to INFO)'
)
parser
.
add_argument
(
'--logfile'
,
metavar
=
'FILENAME'
,
help
=
'filename for the log file (the log is printed to '
'stdout by default)'
)
args
=
parser
.
parse_args
()
# Configure logger
log_config
=
{
'level'
:
getattr
(
logging
,
args
.
log
)}
if
args
.
logfile
:
log_config
[
'filename'
]
=
args
.
logfile
Logger
.
configure
(
**
log_config
)
import
tests.parse_arguments
# Create server
server
=
GestureServer
()
...
...
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