【发布时间】:2014-08-09 10:20:59
【问题描述】:
过去一个月左右我一直在学习 Kivy;玩得很开心,但这个让我真的很难过。我有很多文本,我需要 Kivy 突出显示我编写的词汇表中存在的那些单词,当点击这些单词时,打开一个带有适当定义的弹出窗口。我有一些代码几乎可以做到这一点,但无论我点击哪个单词,我都只会弹出一个带有“螃蟹”定义的弹出窗口:
from kivy.app import App
from kivy.uix.label import Label
from kivy.uix.widget import Widget
from kivy.properties import StringProperty, ListProperty, DictProperty, ObjectProperty
sentence = 'For breakfast today we will be having cheese and crab cakes and milk'
my_gloss = {'crab':'a beach-dwelling critter',
'milk':'leads to cheese when processed',
'cheese':'the processed milk of a given ungulate',
'breakfast':'the first meal of the day',
}
class GlossaryGrabber(Widget):
sentence = StringProperty(sentence)
glossary_full = DictProperty(my_gloss)
gloss_curr_key_list = ListProperty([])
new_sentence = StringProperty()
definition_popup = ObjectProperty(None)
glossary_def = StringProperty()
def highlight_terms(self):
self.gloss_curr_key_list = self.glossary_full.keys()
sent_copy = self.sentence.split(' ')
for i in self.gloss_curr_key_list:
if i in sent_copy:
sent_copy.insert(sent_copy.index(i), '[ref=][b][color=ffcc99]')
sent_copy.insert(sent_copy.index(i) + 1, '[/color][/b][/ref]')
self.glossary_def = self.glossary_full[i]
self.new_sentence = ' '.join(sent_copy)
class GlossaryApp(App):
def build(self):
g = GlossaryGrabber()
g.highlight_terms()
return g
if __name__ == '__main__':
GlossaryApp().run()
及其免费的 .kv 文件:
<GlossaryGrabber>:
definition_popup: definition_popup.__self__
Label:
text: root.new_sentence
center_y: root.height/2
center_x: root.width/2
markup: True
on_ref_press: root.definition_popup.open()
Popup:
id: definition_popup
on_parent: root.remove_widget(self)
title: 'definition'
content: def_stuff
BoxLayout:
id: def_stuff
orientation: 'vertical'
Label:
text: root.glossary_def
Button:
text: 'go back'
on_release: root.definition_popup.dismiss()
显然,连接到弹出窗口内容的glossary_def 字符串在句子副本的每次迭代中都会被覆盖,但我不能传递任何类型的“ref=X”,因为标签本身包含在字符串中。有没有办法给每个单词一个单独的标识符?还是有更好的方法来解决这个问题?我需要能够将“句子”的任何字符串和任何词汇词典传递给程序。
【问题讨论】:
标签: python dynamic markup kivy