Question

我正在阅读kivy pdf文件＆amp;因为我找到了一个Load＆amp;保存代码...该代码适用于.txt文件＆amp; .py文件，但它不适用于.docx＆amp; .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)

我应该修改哪部分代码，以便它适用于所有类型的文件...... ????

Answer 1

.docx和.pdf不是基于文字的格式。您可以加载.txt和.py个文件，因为它们是基于文本的。您正在做的事情就像尝试加载.png作为文字一样 - .png是二进制格式，就像.docx和.pdf一样。

为了显示.docx，您需要学习文件格式并编写自己的加载器，或使用现有的加载器。快速谷歌搜索出现python-docx。一旦你加载了文件，如果你想要它显示，那么你需要编写自己的代码在Kivy中显示它，或者将它转换为Kivy已经支持的格式，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小部件/指令以自行显示文档。

Kivy： - Load＆amp;保存不适用于pdf＆amp; word文档

1 个答案: