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Taddeüs Kroes
multitouch
Commits
7433abd3
Commit
7433abd3
authored
Jun 08, 2012
by
Taddeus Kroes
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Plain Diff
Moved propagation from gesture to event.
parent
fa4f154f
Changes
4
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Showing
4 changed files
with
52 additions
and
23 deletions
+52
-23
src/event.py
src/event.py
+12
-5
src/event_server.py
src/event_server.py
+1
-1
src/tracker.py
src/tracker.py
+0
-7
src/widget.py
src/widget.py
+39
-10
No files found.
src/event.py
View file @
7433abd3
...
...
@@ -13,7 +13,7 @@ class Event(object):
def
__init__
(
self
,
touch_object
):
self
.
touch_object
=
touch_object
self
.
stop
=
False
self
.
stop
ped
=
self
.
stopped_immidiate
=
False
def
__getattr__
(
self
,
name
):
if
name
in
OBJECT_NAMES
\
...
...
@@ -32,8 +32,15 @@ class Event(object):
def
get_position
(
self
):
return
self
.
touch_object
.
get_position
()
def
stop_
dele
gation
(
self
):
self
.
stop
=
True
def
stop_
propa
gation
(
self
):
self
.
stop
ped
=
True
def
is_delegation_stopped
(
self
):
return
self
.
stop
def
is_propagation_stopped
(
self
):
return
self
.
stopped
def
stop_immidiate_propagation
(
self
):
self
.
stop_propagation
()
self
.
stopped_immidiate
=
True
def
is_immediate_propagation_stopped
(
self
):
return
self
.
stopped_immidiate
src/event_server.py
View file @
7433abd3
...
...
@@ -25,7 +25,7 @@ class EventServer(Logger):
Delegate an event that has been triggered by the event driver to the
widget tree.
"""
self
.
root_widget
.
handl
e_event
(
event
)
self
.
root_widget
.
delegat
e_event
(
event
)
def
start
(
self
):
"""
...
...
src/tracker.py
View file @
7433abd3
...
...
@@ -50,7 +50,6 @@ class Gesture(object):
_type
=
NotImplemented
def
__init__
(
self
,
originating_event
=
None
):
self
.
stop
=
False
self
.
tracker
=
None
self
.
originating_event
=
originating_event
...
...
@@ -68,9 +67,3 @@ class Gesture(object):
def
set_tracker
(
self
,
tracker
):
self
.
tracker
=
tracker
def
stop_propagation
(
self
):
self
.
stop
=
True
def
is_propagation_stopped
(
self
):
return
self
.
stop
src/widget.py
View file @
7433abd3
...
...
@@ -22,6 +22,24 @@ class Widget(Positionable, Logger):
self
.
parent
=
None
self
.
children
=
[]
def
get_offset
(
self
,
offset_parent
=
None
):
"""
Get the offset position relative to an offset parent. If no offset
parent is specified, the parent widget is used. If no parent widget is
assigned, return absolute coordinates.
"""
x
,
y
=
self
.
get_position
()
if
not
offset_parent
:
if
not
self
.
parent
:
return
x
,
y
offset_parent
=
self
.
parent
ox
,
oy
=
offset_parent
.
get_position
()
return
x
-
ox
,
y
-
oy
def
add_widget
(
self
,
widget
):
"""
Add a new child widget.
...
...
@@ -114,19 +132,30 @@ class Widget(Positionable, Logger):
"""
raise
NotImplementedError
def
handl
e_event
(
self
,
event
):
def
delegat
e_event
(
self
,
event
):
"""
Delegate a triggered event to gesture trackers and child widgets. A
handler can stop the delegation of the event, preventing it from being
delegated to child widgets.
Delegate a triggered event to child widgets. If a child stops
propagation
"""
if
not
self
.
children
:
self
.
propagate_event
(
event
)
else
:
for
child
in
self
.
children
:
if
child
.
contains_event
(
event
):
child
.
delegate_event
(
event
)
if
event
.
is_propagation_stopped
():
break
def
propagate_event
(
self
,
event
):
for
tracker
in
set
(
self
.
trackers
.
itervalues
()):
tracker
.
handle_event
(
event
)
if
not
event
.
is_delegation_stopped
():
for
child
in
self
.
children
:
if
child
.
contains_event
(
event
):
child
.
handle_event
(
event
)
if
event
.
is_immediate_propagation_stopped
():
break
if
self
.
parent
and
not
event
.
is_propagation_stopped
():
self
.
parent
.
propagate_event
(
event
)
def
handle_gesture
(
self
,
gesture
):
"""
...
...
@@ -138,5 +167,5 @@ class Widget(Positionable, Logger):
for
handler
in
self
.
handlers
.
get
(
gesture
.
get_type
(),
()):
handler
(
gesture
)
if
self
.
parent
and
not
gesture
.
is_propagation_stopped
():
self
.
parent
.
handle_gesture
(
gesture
)
#
if self.parent and not gesture.is_propagation_stopped():
#
self.parent.handle_gesture(gesture)
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