104 lines
3.8 KiB
Python
104 lines
3.8 KiB
Python
#!/usr/bin/env python
|
||
# -*- coding: utf-8 -*-
|
||
|
||
"""
|
||
Created on 2020/6/3
|
||
@author: Irony
|
||
@site: https://pyqt.site https://github.com/PyQt5
|
||
@email: 892768447@qq.com
|
||
@file: DynamicRes
|
||
@description:
|
||
"""
|
||
from threading import Thread
|
||
|
||
import requests
|
||
from PyQt5.QtCore import QUrl, QByteArray
|
||
from PyQt5.QtGui import QImage, QTextDocument
|
||
from PyQt5.QtWidgets import QTextBrowser, QWidget, QVBoxLayout, QPushButton
|
||
|
||
__Author__ = 'Irony'
|
||
__Copyright__ = 'Copyright (c) 2020'
|
||
__Version__ = 'Version 1.0'
|
||
|
||
|
||
class TextBrowser(QTextBrowser):
|
||
NetImages = {}
|
||
|
||
def __init__(self, *args, **kwargs):
|
||
super(TextBrowser, self).__init__(*args, **kwargs)
|
||
self.setOpenLinks(False) # 禁止打开URL
|
||
|
||
def downloadImage(self, url):
|
||
try:
|
||
self.NetImages[url] = [QByteArray(requests.get(url.toString()).content), 1]
|
||
print('下载完成', url)
|
||
except Exception as e:
|
||
print('下载失败', url, e)
|
||
self.NetImages[url] = [QByteArray(), 1]
|
||
|
||
def loadResource(self, rtype, url):
|
||
ret = super(TextBrowser, self).loadResource(rtype, url)
|
||
# 加载图片资源
|
||
if rtype == QTextDocument.ImageResource:
|
||
if ret:
|
||
return ret
|
||
if url.toString().startswith('irony'): # 自定义的协议头
|
||
print('加载本地', '../Donate/zhifubao.png', url)
|
||
return QImage('../Donate/zhifubao.png') # 或者 QByteArray(open('../Donate/zhifubao.png', 'rb').read())
|
||
elif url.toString().startswith('http'): # 加载网络图片
|
||
img, status = self.NetImages.get(url, [None, None])
|
||
if url not in self.NetImages or status is None:
|
||
# 子线程下载
|
||
self.NetImages[url] = [None, 1]
|
||
print('download ', url)
|
||
Thread(target=self.downloadImage, args=(url,), daemon=True).start()
|
||
elif img:
|
||
return img
|
||
return ret
|
||
|
||
def mouseDoubleClickEvent(self, event):
|
||
# 双击图片得到图片的URL，也可以用来放大显示
|
||
super(TextBrowser, self).mouseDoubleClickEvent(event)
|
||
url = self.anchorAt(event.pos())
|
||
if url:
|
||
print('url:', url, self.document().resource(QTextDocument.ImageResource, QUrl(url)))
|
||
|
||
|
||
class Window(QWidget):
|
||
|
||
def __init__(self, *args, **kwargs):
|
||
super(Window, self).__init__(*args, **kwargs)
|
||
layout = QVBoxLayout(self)
|
||
|
||
self.textBrowser = TextBrowser(self)
|
||
self.downButton = QPushButton('加载网络图片', self)
|
||
|
||
layout.addWidget(self.textBrowser)
|
||
layout.addWidget(self.downButton)
|
||
|
||
# 加载本地图片
|
||
img = QImage('../Donate/weixin.png')
|
||
# 第二个参数为任意唯一的url类似于qrc方式
|
||
self.textBrowser.document().addResource(QTextDocument.ImageResource, QUrl('dynamic:/images/weixin.png'), img)
|
||
|
||
# 设置html
|
||
# 需要注意里面的图片地址
|
||
self.textBrowser.setHtml(
|
||
'<p><a href="../Donate/weixin.png"><img src="../Donate/weixin.png"></a></p>' # 方式一直接加载本地图片
|
||
'<p><a href="dynamic:/images/weixin.png"><img src="dynamic:/images/weixin.png"></a></p>' # 方式二通过addResource添加资源
|
||
'<p><a href="irony://zhifubao.png"><img src="irony://zhifubao.png"></a></p>' # 方式三定义自定义的协议头通过loadResource动态加载
|
||
'<p><a href="https://blog.pyqt5.com/img/avatar.png"><img ' # 方式四类似方式三，只不过需要从网络中下载
|
||
'src="https://blog.pyqt5.com/img/avatar.png"></a></p>')
|
||
|
||
|
||
if __name__ == '__main__':
|
||
import sys
|
||
import cgitb
|
||
|
||
cgitb.enable(1, None, 5, '')
|
||
from PyQt5.QtWidgets import QApplication
|
||
|
||
app = QApplication(sys.argv)
|
||
w = Window()
|
||
w.show()
|
||
sys.exit(app.exec_())
|