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を削除した後に存在します。HoverBehaviorButtonはまだ のPython 3.4.4 Kivyをウィジェット
ただし、clear_widgetsで関連付けられたウィジェットを削除すると、self.parentがなくても何らかの形でHoverButtonが存在します。私はこのホバーイベントを他のウィジェットに拡張し、目に見えないウィジェットを永続させたくないので、このボタンを削除することが不可欠です。
以下を見て、わからないことを教えてください。
要するに、HoverButtonとそれに関連するすべての動作を完全に削除したいと思います。
#main.py
from win32api import GetSystemMetrics
from kivy.config import Config
Config.set('graphics', 'position', 'custom')
Config.set('graphics', 'resizable', 1)
from kivy.app import App
from kivy.clock import Clock
from kivy.lang import Builder
from kivy.properties import ObjectProperty
from kivy.uix.boxlayout import BoxLayout
from main_menu import MainMenu
from _map import Map
Builder.load_file('main_menu.kv')
class HoverBehaviorPersistance(App):
boxlayout_main_menu = ObjectProperty(None)
hover_button = ObjectProperty(None)
def __init__(self, **kwargs):
super(HoverBehaviorPersistance, self).__init__(**kwargs)
self.content = BoxLayout()
self.main_menu = MainMenu()
self.content.add_widget(self.main_menu)
def build(self):
return self.content
def begin(self):
print("begin")
self.test_map = Map()
self.main_menu.boxlayout_main_menu.clear_widgets()
self.main_menu.clear_widgets()
self.content.clear_widgets()
self.content.add_widget(self.test_map)
if __name__ == '__main__':
HoverBehaviorPersistance().run()#main_menu.py
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.popup import Popup
class MainMenu(BoxLayout):
def __init__(self, **kwargs):
super(MainMenu, self).__init__(**kwargs)
print("Initializing MainMenu")
def open_settings(self):
settings_popup = SettingsPopup()
settings_popup.open()
class SettingsPopup(Popup):
pass#main_menu.kv
#: import HoverButton hover_widget_behavior
<MainMenu>
boxlayout_main_menu:_boxlayout_main_menu
hover_button:_hover_button
orientation: 'vertical'
\t
\t AnchorLayout:
anchor_x: 'center'
\t anchor_y: 'center'
\t \t
BoxLayout:
id:_boxlayout_main_menu
\t \t orientation: 'vertical'
\t spacing: 10
\t \t padding: 10
\t \t size_hint: .5, .8
\t \t \t
\t \t HoverButton:
id:_hover_button
\t \t text: 'begin'
\t \t on_release: app.begin()
HoverButton:
text: 'settings'
on_release: root.open_settings()
\t \t \t \t
<SettingsPopup>
id: popup_settings
\t size_hint: 0.9, 0.6
\t title: "Settings"
\t GridLayout:
\t
\t cols: 2
\t \t
\t Label:
\t \t text:'Settings #1'
\t Slider:
\t orientation: 'horizontal'
\t \t value: 25
\t \t max: 100
\t \t min: 0
\t Label:
\t \t text: 'Settings #2'
\t BoxLayout:
\t \t orientation: 'horizontal'
\t Label:
\t \t text: 'Settings #3'#_map.py
from kivy.uix.button import Button
from kivy.uix.boxlayout import BoxLayout
class Map(BoxLayout):
def __init__(self, **kwargs):
super(Map, self).__init__(**kwargs)
print("Map initiated.")
\t \t
self.btn = Button(text="btn")
self.add_widget(self.btn)#hover_widget_behavior.py
from kivy.animation import Animation
from kivy.core.window import Window
from kivy.properties import BooleanProperty, ObjectProperty, StringProperty
from kivy.uix.button import Button
class HoverGUIBehavior(object):
#__author__ = 'Olivier POYEN'
"""Hover behavior.
:Events:
`on_enter`
Fired when mouse enter the bbox of the widget.
`on_leave`
Fired when the mouse exit the widget
"""
hovered = BooleanProperty(False)
border_point= ObjectProperty(None)
'''Contains the last relevant point received by the Hoverable. This can
be used in `on_enter` or `on_leave` in order to know where was dispatched the event.
'''
def __init__(self, **kwargs):
self.register_event_type('on_enter')
self.register_event_type('on_leave')
Window.bind(mouse_pos=self.on_mouse_pos)
super(HoverGUIBehavior, self).__init__(**kwargs)
def on_mouse_pos(self, *args):
pos = args[1]
inside = self.collide_point(*pos)
if self.hovered == inside:
#We have already done what was needed
return
self.border_point = pos
self.hovered = inside
if inside:
self.dispatch('on_enter')
else:
self.dispatch('on_leave')
def on_enter(self):
pass
def on_leave(self):
pass
class HoverButton(Button, HoverGUIBehavior):
# TODO: HoverButton somehow still exists even after removing parent and it's children
def on_enter(self, *args, **kwargs):
print("I'm still here!")
if not self.parent: # Find someway to remove itself
print()
print('self = ' + str(self))
print("I'm definitely still here!")
return
self.ref_x = self.x
self.ref_y = self.y
self.anim = Animation(x = self.x -10 ,y = self.y - 10, duration=1.0, t='out_bounce') + Animation(x = self.x + 10, y = self.y + 10, duration=1.0, t='out_bounce')
self.anim.repeat = True
self.anim.start(self)
def on_leave(self, *args):
if not self.parent: # Find someway to remove itself
print()
print('self = ' + str(self))
print("I'm definitely still here!")
return
if self.anim:
self.anim.cancel(self)
return_anim = Animation(pos = (self.ref_x, self.ref_y), duration = 0.35, t='out_bounce')
return_anim.start(self)