Kivy：- 加载和保存不适用于 pdf 和 word 文档

Question

我正在阅读 kivy pdf 文件，并在其中找到了加载和保存代码...该代码适用于 .txt 文件和 .py 文件，但不适用于 .docx 和 .pdf 文件。 ..

main.py:---

import kivy
from kivy.app import App
from kivy.uix.floatlayout import FloatLayout
from kivy.factory import Factory
from kivy.uix.label import Label
from kivy.properties import ObjectProperty
from kivy.uix.popup import Popup

import os

class LoadDialog(FloatLayout):
    load = ObjectProperty(None)
    cancel = ObjectProperty(None)


class SaveDialog(FloatLayout):
    save = ObjectProperty(None)
    #text_input = ObjectProperty(None)
    cancel = ObjectProperty(None)


class Root(FloatLayout):
    loadfile = ObjectProperty(None)
    savefile = ObjectProperty(None)
    #text_input = ObjectProperty(None)

    def dismiss_popup(self):
        self._popup.dismiss()

    def show_load(self):
        content = LoadDialog(load=self.load, cancel=self.dismiss_popup)
        print(self.load)
        self._popup = Popup(title="Load file", content=content, size_hint=(0.9, 0.9))
        self._popup.open()

    def show_save(self):
        content = SaveDialog(save=self.save, cancel=self.dismiss_popup)
        print(self.save)
        self._popup = Popup(title="Save file", content=content, size_hint=(0.9, 0.9))
        self._popup.open()


    def load(self, path, filename):

        with open(os.path.join(path, filename[0])) as stream:

            self.text = stream.read()

        self.dismiss_popup()
        self._popup = Popup(title="Load file", content=Label(text = 'File Loaded Successfully'), size_hint=(0.9, 0.9))
        self._popup.open()




    def save(self, path, filename):

        with open(os.path.join(path, filename), 'w') as stream:

            stream.write(self.text)

        self.dismiss_popup()

        self._popup = Popup(title="Save file", content=Label(text = 'File Saved Successfully'), size_hint=(0.9, 0.9))
        self._popup.open()

class Editor(App):
    pass


Factory.register('Root', cls=Root)
Factory.register('LoadDialog', cls=LoadDialog)
Factory.register('SaveDialog', cls=SaveDialog)

if __name__ == '__main__':
    Editor().run()

editor.kv:---

#:kivy 1.8.0

Root:
    #text_input: text_input

    BoxLayout:
        orientation: 'vertical'

        BoxLayout:
            size_hint_y: None
            height: 100
            Button:
                text: 'Load'
                on_release: root.show_load()
            Button:
                text: 'Save'
                on_release: root.show_save()


        Image:
            source: 'myimage.png'

<LoadDialog>:
    BoxLayout:
        size: root.size
        pos: root.pos
        orientation: "vertical"
        FileChooserListView:
            id: filechooser

        BoxLayout:
            size_hint_y: None
            height: 100
            Button:
                text: "Cancel"
                on_release: root.cancel()

            Button:
                text: "Load"
                on_release: root.load(filechooser.path, filechooser.selection)

<SaveDialog>:
    text_input: text_input
    BoxLayout:
        size: root.size
        pos: root.pos
        orientation: "vertical"
        FileChooserListView:
            id: filechooser
            on_selection: text_input.text = self.selection and self.selection[0] or ''

        TextInput:
            id: text_input
            size_hint_y: None
            height: 100
            multiline: False

        BoxLayout:
            size_hint_y: None
            height: 100
            Button:
                text: "Cancel"
                on_release: root.cancel()

            Button:
                text: "Save"
                on_release: root.save(filechooser.path, text_input.text)

我应该修改代码的哪一部分，以便它适用于所有类型的文件...？？？？

Answer 1

.docx 和 .pdf 不是基于文本的格式。您可以加载 .txt 和 .py 文件，因为它们是基于文本的。您所做的本质上就像尝试将 .png 作为文本加载 - .png 是二进制格式，就像 .docx 和 .pdf.

为了显示.docx，您需要学习文件格式并编写自己的加载程序，或使用现有的加载程序。快速 Google 搜索结果 python-docx。一旦你加载了文件，如果你想显示它，那么你需要编写自己的代码来在 Kivy 中显示它，或者将它转换成 Kivy 已经支持的格式，比如 reStructuredText。

同样，对于 .pdf，Google 会找到 pyPdf2。同样，您需要将其转换为 rST 或生成 Kivy widgets/instructions 以自己显示文档。

Kivy：- 加载和保存不适用于 pdf 和 word 文档

Kivy:- Load & Save does not work for pdf & word docment

python-2.7

kivy