我正在尝试在另一个应用程序的布局中使用自定义窗口小部件,但不是在布局中正确缩放,而是占用整个屏幕。这是.kv文件,细分为相关部分(我取出了所有回调函数,按预期运行):
'little'
以下是从上面导入该类并使用它的单独应用程序的.kv文件:
<NodeWidget>
BoxLayout:
orientation: 'horizontal'
size:root.size
ToggleButton:
size_hint: 0.10345, 1
group: 'Ends'
background_normal: 'Left_Up.png'
background_down: 'Left_Down.png'
Button:
size_hint: 0.801724, 1
background_normal: 'Center_Button_Up.png'
background_down: 'Center_Button_Down.png'
ToggleButton:
size_hint: 0.094827, 1
group: 'Ends'
background_normal: 'Right_Up.png'
background_down: 'Right_Down.png'
这是我现在运行测试应用程序时看到的内容:
提前感谢您的帮助!
答案 0 :(得分:1)
所以我通过将它移回直接python,没有.kv文件来解决这个问题。这是代码:
from kivy.app import App
from kivy.uix.widget import Widget
from kivy.properties import ListProperty, StringProperty, BooleanProperty, ObjectProperty, NumericProperty
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.button import Button
from kivy.uix.togglebutton import ToggleButton
#This widget contains two buttons
#The buttons each expose two events
#Names still aren't functioning
class NodeWidget(BoxLayout):
#We expose events:
#on_press when the central button is pressed
#on_release when the central button is released
#on_press_right when the right button is pressed
#on_press_left when the left button is pressed
press = BooleanProperty(False)
release = BooleanProperty(False)
press_right = BooleanProperty(False)
press_left = BooleanProperty(False)
release_right = BooleanProperty(False)
release_left = BooleanProperty(False)
#Properties exposed to set internal properties
title = StringProperty('')
left_background_normal = StringProperty('Left_Up.png')
left_background_down = StringProperty('Left_Down.png')
center_background_normal = StringProperty('Center_Button_Up.png')
center_background_down = StringProperty('Center_Button_Down.png')
right_background_normal = StringProperty('Right_Up.png')
right_background_down = StringProperty('Right_Down.png')
font_name = StringProperty('Roboto')
markup = BooleanProperty(True)
padding_x = NumericProperty(0)
padding_y = NumericProperty(0)
#Which node is active
active_left = BooleanProperty(False)
active_right = BooleanProperty(False)
#Object Properties for internal elements
left_button = ObjectProperty(None)
center_button = ObjectProperty(None)
right_button = ObjectProperty(None)
def __init__(self, **kwargs):
super(NodeWidget, self).__init__(**kwargs)
center = Button()
left = ToggleButton()
right = ToggleButton()
left.size_hint = (0.10345, 1)
center.size_hint = (0.801724, 1)
right.size_hint = (0.094827, 1)
left.background_normal = 'Left_Up.png'
left.background_down = 'Left_Down.png'
center.background_normal = 'Center_Button_Up.png'
center.background_down = 'Center_Button_Down.png'
right.background_normal = 'Right_Up.png'
right.background_down = 'Right_Down.png'
left.group = 'ends'
right.group = 'ends'
left.bind(on_press=self.ActivateNode_Left)
left.bind(on_release=self.ReleaseNode_Left)
right.bind(on_press=self.ActivateNode_Right)
right.bind(on_release=self.ReleaseNode_Right)
center.bind(on_press=self.PressNode)
center.bind(on_release=self.ReleaseNode)
self.left_button = left
self.center_button = center
self.right_button = right
self.bind(title=self.SetTitle)
self.bind(left_background_normal=self.SetLeftBackgroundNormal)
self.bind(left_background_down=self.SetLeftBackgroundDown)
self.bind(center_background_normal=self.SetCenterBackgroundNormal)
self.bind(center_background_down=self.SetCenterBackgroundDown)
self.bind(right_background_normal=self.SetRightBackgroundNormal)
self.bind(right_background_down=self.SetRightBackgroundDown)
self.bind(font_name=self.SetFontName)
self.bind(markup=self.SetMarkup)
self.bind(padding_x=self.SetPaddingX)
self.bind(padding_y=self.SetPaddingY)
self.add_widget(left)
self.add_widget(center)
self.add_widget(right)
def ActivateNode_Left(self, *args):
if self.active_left == False:
self.active_left = True
self.active_right = False
else:
self.active_left = False
self.active_right = True
if self.press_left == True:
self.press_left = False
else:
self.press_left = True
def ActivateNode_Right(self, *args):
if self.active_right == False:
self.active_right = True
self.active_left = False
else:
self.active_right = False
self.active_left = True
if self.press_right == True:
self.press_right = False
else:
self.press_right = True
def ReleaseNode_Left(self, *args):
if self.release_left == True:
self.release_left == False
else:
self.release_left == True
def ReleaseNode_Right(self, *args):
if self.release_right == True:
self.release_right == False
else:
self.release_right == True
def PressNode(self, *args):
if self.press == True:
self.press = False
else:
self.press = True
def ReleaseNode(self, *args):
if self.release == True:
self.release = False
else:
self.release = True
def SetTitle(self, *args):
self.center_button.text = self.title
def SetLeftBackgroundDown(self, *args):
self.left_button.background_down = self.left_background_down
def SetLeftBackgroundNormal(self, *args):
self.left_button.background_normal = self.left_background_normal
def SetCenterBackgroundDown(self, *args):
self.center_button.background_down = self.center_background_down
def SetCenterBackgroundNormal(self, *args):
self.center_button.background_normal = self.center_background_normal
def SetRightBackgroundDown(self, *args):
self.right_button.background_down = self.right_background_down
def SetRightBackgroundNormal(self, *args):
self.right_button.background_normal = self.right_background_normal
def SetFontName(self, *args):
self.center_button.font_name = self.font_name
def SetMarkup(self, *args):
self.center_button.markup = self.markup
def SetPaddingX(self, *args):
self.center_button.padding_x = self.padding_x
def SetPaddingY(self, *args):
self.center_button.padding_y = self.padding_y