class ScrollWindow(QScrollArea):
def __init__(self, *args, **kwargs):
super(ScrollWindow, self).__init__(*args, **kwargs)
# self.setAcceptDrops(True) # 2
self.resize(800, 600)
self.setFrameShape(self.NoFrame)
self.setWidgetResizable(True)
self.setAlignment(Qt.AlignCenter)
self._loadStart = False
# 网格窗口
self._widget = GridWidget(self)
self._widget.loadStarted.connect(self.setLoadStarted)
self.setWidget(self._widget)
####################################################
# 连接竖着的滚动条滚动事件
# self.verticalScrollBar().actionTriggered.connect(self.onActionTriggered)
####################################################
# 进度条
self.loadWidget = QSvgWidget(self,
minimumHeight=180,
minimumWidth=180,
visible=False)
self.loadWidget.load(Svg_icon_loading)
def setLoadStarted(self, started):
self._loadStart = started
self.loadWidget.setVisible(started)
def onActionTriggered(self, action):
# 这里要判断action=QAbstractSlider.SliderMove，可以避免窗口大小改变的问题
# 同时防止多次加载同一个url
if action != QAbstractSlider.SliderMove or self._loadStart:
return
# 使用sliderPosition获取值可以同时满足鼠标滑动和拖动判断
if self.verticalScrollBar().sliderPosition() == self.verticalScrollBar(
).maximum():
# 可以下一页了
self._widget.load()
def resizeEvent(self, event):
super(ScrollWindow, self).resizeEvent(event)
self.loadWidget.setGeometry(
int((self.width() - self.loadWidget.minimumWidth()) / 2),
int((self.height() - self.loadWidget.minimumHeight()) / 2),
self.loadWidget.minimumWidth(), self.loadWidget.minimumHeight())
class Window(QListWidget):
Page = 0
def __init__(self, *args, **kwargs):
super(Window, self).__init__(*args, **kwargs)
self.resize(800, 600)
self.setFrameShape(self.NoFrame) # 无边框
self.setFlow(self.LeftToRight) # 从左到右
self.setWrapping(True) # 这三个组合可以达到和FlowLayout一样的效果
self.setResizeMode(self.Adjust)
self._loadStart = False
# 连接竖着的滚动条滚动事件
self.verticalScrollBar().actionTriggered.connect(
self.onActionTriggered)
# 进度条
self.loadWidget = QSvgWidget(self,
minimumHeight=120,
minimumWidth=120,
visible=False)
self.loadWidget.load(Svg_icon_loading)
# 异步网络下载管理器
self._manager = QNetworkAccessManager(self)
self._manager.finished.connect(self.onFinished)
def load(self):
if self.Page == -1:
return
self._loadStart = True
self.loadWidget.setVisible(True)
# 延迟一秒后调用目的在于显示进度条
QTimer.singleShot(1000, self._load)
def _load(self):
print("load url:", Url.format(self.Page * 30))
url = QUrl(Url.format(self.Page * 30))
self._manager.get(QNetworkRequest(url))
def onFinished(self, reply):
# 请求完成后会调用该函数
req = reply.request() # 获取请求
iwidget = req.attribute(QNetworkRequest.User + 1, None)
path = req.attribute(QNetworkRequest.User + 2, None)
html = reply.readAll().data()
reply.deleteLater()
del reply
if iwidget and path and html:
# 这里是图片下载完毕
open(path, "wb").write(html)
iwidget.setCover(path)
return
# 解析网页
self._parseHtml(html)
self._loadStart = False
self.loadWidget.setVisible(False)
def _parseHtml(self, html):
# encoding = chardet.detect(html) or {}
# html = html.decode(encoding.get("encoding","utf-8"))
html = HTML(html)
# 查找所有的li list_item
lis = html.xpath("//li[@class='list_item']")
if not lis:
self.Page = -1 # 后面没有页面了
return
self.Page += 1
self._makeItem(lis)
def _makeItem(self, lis):
for li in lis:
a = li.find("a")
video_url = a.get("href") # 视频播放地址
img = a.find("img")
cover_url = "http:" + img.get("r-lazyload") # 封面图片
figure_title = img.get("alt") # 电影名
figure_info = a.find("div/span")
figure_info = "" if figure_info is None else figure_info.text # 影片信息
figure_score = "".join(li.xpath(".//em/text()")) # 评分
# 主演
figure_desc = "<span style=\"font-size: 12px;\">主演：</span>" + \
"".join([Actor.format(**dict(fd.items()))
for fd in li.xpath(".//div[@class='figure_desc']/a")])
# 播放数
figure_count = (
li.xpath(".//div[@class='figure_count']/span/text()")
or [""])[0]
path = "cache/{0}.jpg".format(
os.path.splitext(os.path.basename(video_url))[0])
cover_path = "Data/pic_v.png"
if os.path.isfile(path):
cover_path = path
iwidget = ItemWidget(cover_path, figure_info, figure_title,
figure_score, figure_desc, figure_count,
video_url, cover_url, path, self._manager,
self)
item = QListWidgetItem(self)
item.setSizeHint(iwidget.sizeHint())
self.setItemWidget(item, iwidget)
def onActionTriggered(self, action):
# 这里要判断action=QAbstractSlider.SliderMove，可以避免窗口大小改变的问题
# 同时防止多次加载同一个url
if action != QAbstractSlider.SliderMove or self._loadStart:
return
# 使用sliderPosition获取值可以同时满足鼠标滑动和拖动判断
if self.verticalScrollBar().sliderPosition() == self.verticalScrollBar(
).maximum():
# 可以下一页了
self.load()
def resizeEvent(self, event):
super(Window, self).resizeEvent(event)
self.loadWidget.setGeometry(
int((self.width() - self.loadWidget.minimumWidth()) / 2),
int((self.height() - self.loadWidget.minimumHeight()) / 2),
self.loadWidget.minimumWidth(), self.loadWidget.minimumHeight())