問題描述
我正在使用 kivy 和 python 來構(gòu)建應(yīng)用程序.
I am using kivy and python to build an application.
我正在嘗試構(gòu)建一個應(yīng)用程序，我可以在其中選擇多個圖像，將它們添加到一個數(shù)組中，然后通過另一個拼接圖像的方法(使用stitcher 類)傳遞這個圖像數(shù)組.輸出圖像將顯示在三個屏幕之一(我也想移除中間屏幕).
I am trying to build an application in which I can select several images, add them to an array, and then pass this array of images through another method which stitches the images (using the stitcher class). The output image will display on one of the three screens (also I want to remove the middle screen).
所以本質(zhì)上我想要幫助的是如何能夠在 kivy 中使用 filechooser 選擇多個文件，然后將這些文件添加到我以后可以通過不同方法傳遞的數(shù)組中.
So essentially what I would like help with is how to be able to select multiple files with filechooser in kivy and then add these files to array that I can later pass through a different method.
在 這篇文章，我已經(jīng)可以創(chuàng)建應(yīng)用了.
With the help of @ikolim in this post, I have been able to create the application.
ma??in.py
from kivy.app import App
from kivy.uix.tabbedpanel import TabbedPanel
from kivy.properties import ObjectProperty
from PIL import Image
class RootWidget(TabbedPanel):
manager = ObjectProperty(None)
img = ObjectProperty(None)
img3 = ObjectProperty(None)
img4 = ObjectProperty(None)
lab = ObjectProperty(None)
def on_touch_up(self, touch):
if not self.img3.collide_point(*touch.pos):
return True
else:
self.lab.text = 'Pos: (%d,%d)' % (touch.x, touch.y)
return True
def switch_to(self, header):
# set the Screen manager to load the appropriate screen
# linked to the tab head instead of loading content
self.manager.current = header.screen
# we have to replace the functionality of the original switch_to
self.current_tab.state = "normal"
header.state = 'down'
self._current_tab = header
def select_to(self, *args):
try:
print(args[1][0])
iw = Image.open(args[1][0])
iw.save('./phase.jpg')
gray = iw.convert('1')
gray.save('./gray_im.jpg')
self.img3.source = './gray_im.jpg'
self.img4.source = './gray_im.jpg'
self.img.source = './phase.jpg'
self.img.reload()
self.img3.reload()
self.img4.reload()
except:
pass
def update_touch_label(self, label, touch):
label.text = 'Pos:(%d, %d)' % (touch.x, touch.y)
label.texture_update()
label.pos = touch.pos
label.size = label.texture_size[0] + 20, label.texture_size[1] + 20
class TestApp(App):
title = 'Screen Widget'
def build(self):
return RootWidget()
def on_pause(self):
return True
if __name__ == '__main__':
TestApp().run()
Test.kv
#:kivy 1.10.1
<RootWidget>:
manager: manager
img: img
img3: img3
img4: img4
lab: lab
do_default_tab: False
ScreenManager:
id: manager
Screen:
id: sc1
name:'Load img'
FileChooserIconView:
canvas.before:
Color:
rgb: 0.5, 0.4, 0.5
Rectangle:
pos: self.pos
size: self.size
on_selection:
root.select_to(*args)
Screen:
id: sc2
name: 'Image'
FloatLayout:
Button:
id: lab
pos_hint: {"right": 0.55, 'top': 1}
size_hint: .15,0.1
RelativeLayout:
Image:
id: img
on_touch_down:
str('Relative:{}'.format(args[1].pos))
pos_hint: {"left": 1, 'bottom': 1}
size_hint: 0.5, 1
allow_stretch: True
RelativeLayout:
Image:
id: img3
pos_hint: {"right": 1, 'bottom': 1}
size_hint: 0.5, 1
allow_stretch: True
Screen:
id: sc3
name: 'Image_'
FloatLayout:
Image:
id: img4
keep_data: True
post: self.pos
size: self.size
TabbedPanelHeader:
text: sc1.name
background_color: 1, 0, 0, 1
screen: sc1.name
TabbedPanelHeader:
text: sc2.name
background_color: 1, 1, 0, 1
screen: sc2.name
TabbedPanelHeader:
text: sc3.name
background_color: 1, 0, 1, 1
screen: sc3.name
推薦答案
這是一個我認為你想要的例子:
Here is an example that does what I think you want:
import os
import kivy
from kivy import platform
from kivy.app import App
from kivy.uix.button import Button
from kivy.uix.floatlayout import FloatLayout
import kivy.garden.filebrowser
class FileBrowserApp(App):
def build(self):
self.root = FloatLayout()
button = Button(text='Select Files', pos_hint={'x':0, 'y': 0}, size_hint=(0.2, 0.1))
button.bind(on_press=self.do_select)
self.root.add_widget(button)
return self.root
def do_select(self, *args):
homeDir = None
if platform == 'win':
homeDir = os.environ["HOMEPATH"]
elif platform == 'android':
homeDir = os.path.dirname(os.path.abspath(__file__))
elif platform == 'linux':
homeDir = os.environ["HOME"]
self.fbrowser = kivy.garden.filebrowser.FileBrowser(select_string='Select',
multiselect=True, filters=['*.png'], path=homeDir)
self.root.add_widget(self.fbrowser)
self.fbrowser.bind(
on_success=self._fbrowser_success,
on_canceled=self._fbrowser_canceled,
on_submit=self._fbrowser_success)
def _fbrowser_success(self, fbInstance):
if len(fbInstance.selection) == 0:
return
selected = []
for file in fbInstance.selection:
selected.append(os.path.join(fbInstance.path, file))
print('selected: ' + str(selected))
self.root.remove_widget(self.fbrowser)
self.fbrowser = None
def _fbrowser_canceled(self, instance):
self.root.remove_widget(self.fbrowser)
self.fbrowser = None
if __name__=="__main__":
app = FileBrowserApp()
app.run()
這篇關(guān)于如何使用 Kivy 的 FileChooser 選擇多個文件?的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網(wǎng)！