博客园的第一个坑，想想都有点小激动 =3=
首先是那个爬虫的地址：
【原创】最近写的一个比较hack的小爬虫
选择工具：
以前用过Qt，那么选pyqt4也就是情理之中了。
明确需求：
0、首先，要读取漫画的全部章节进来，同时能选择相应的章节。
1、其次，进入相应的章节后，显示该章节的图片，同时有“下一页”、“上一页”、“返回主界面”等基本功能
3、最后，最好能有书签功能。程序应该能够根据章节和页码的信息定位相应的图片
最后是还没有来得及实现书签的代码：
# -*- coding:utf-8 -*-
'''
该软件一共有四个类：
0、继承QPushButton的Mybutton类，主要是为了实现发送参数的clicked事件。
1、MainChapter类，显示主界面
2、BookMark类，负责MainChapter类和Chapter类之间的通信，是实现书签的关键类。
3、Chapter类，负责显示图片
类之间的通信：
MainChapter to BookMark ：章节 + 页数。如果不点击书签而点击章节，则默认页数为0
BookMark to Chapter ： 图片路径 + 章节 + 页。为了防止当前页面越界，除了发送图片路径给Chapter，还需要发送页面值给Chapter
Chapter to BookMark ： 章节 + 页。向BookMark请求对应章节 + 页的图片路径。
Chapter to MainChapter : 隐藏自己后，通知MainChapter现身 为了实现书签功能所搭建的复杂信号通信终于实现完成。。怀念第一个版本的简单粗暴
过几天在搞书签 OMG
'''
from PyQt4.QtGui import *
from PyQt4.QtCore import *
import sys
import os manhuadir = r'd:/sketdance'
manhuainx = os.listdir(manhuadir)
manhuainx = [key.decode('gbk') for key in manhuainx] class MyButton(QPushButton):
myclicked = pyqtSignal(int)
def __init__(self,id,*args, **kwargs):
super(MyButton,self).__init__(*args, **kwargs)
self.id = id self.connect(self,SIGNAL('clicked()'),self.emitMyclicked) def emitMyclicked(self):
self.myclicked.emit(self.id) class BookMark(QWidget):
sendAddr = pyqtSignal(QString,int,int)
#senddir = QtCore.pyqtSignal(str)
def __init__(self,parent = None):
super(BookMark,self).__init__(parent)
self.nowChapter = 0
self.nowPage = 0
self.flag = 0 # 这里写的太丑了。为了效率，setDictReady应该尽可能少的执行，因此标记下第一次执行setDictReady的情况 def connectToChapter(self,chapter):
self.chapter = chapter
self.connect(self,SIGNAL('sendAddr(QString,int,int)'),self.chapter.setChapterPage)
#self.connect(self,SIGNAL('senddir(str)'),self.chapter.showImg) def cmp(self,str1,str2):
inx1 = str1.find('.')
inx2 = str2.find('.')
str1 = str1[:inx1]
str2 = str2[:inx2]
str1 = int(str1)
str2 = int(str2)
return str1 - str2 def setDictReady(self):
self.dir = manhuainx[self.nowChapter]
self.imgList = os.listdir(manhuadir + '/' + self.dir.encode('gbk'))
self.imgList.sort(self.cmp) def setChapterPage(self,page,chapter):
self.nowPage = page
if self.flag == 0: # 执行本应该在构造函数中执行的代码
self.flag = 1
self.setDictReady()
if self.nowChapter != chapter: # 如果不需要更改当前文件夹，则不重新设置工作目录
self.nowChapter = chapter
self.setDictReady()
self.target = self.generateAddr(page,chapter) self.sendAddr.emit(QString(self.target),self.nowPage,self.nowChapter) def generateAddr(self,page,chapter):
if page > len(self.imgList):
self.nowChapter += 1
if self.nowChapter > len(manhuainx):
self.nowChapter = 0
self.nowPage = 0
self.setDictReady()
elif page < 0:
self.nowPage = 0
if chapter > 1:
self.nowChapter = chapter - 1
else:
self.nowChapter = 0
self.setDictReady()
else:
self.nowPage = page
return manhuadir + '/' + self.dir + '/' + self.imgList[self.nowPage] class MainChapters(QWidget):
addrSignal = pyqtSignal(int,int)
def __init__(self,parent = None):
super(MainChapters,self).__init__(parent) self.resize(640,480)
self.button = [MyButton(inx,key,self) for inx,key in enumerate(manhuainx)]
for inx,key in enumerate(self.button):
self.connect(key,SIGNAL('myclicked(int)'),self.emitAddr)
layout = QGridLayout()
count = 0
startX = 0
for inx,key in enumerate(self.button):
layout.addWidget(key,startX,inx % 7)
count += 1
if count >= 7:
count = 0
startX += 1
self.setWindowTitle('imanhuaReader')
self.setLayout(layout) def connectToBook(self,bookmark):
self.bookmark = bookmark
self.connect(self,SIGNAL('addrSignal(int,int)'),self.bookmark.setChapterPage) def emitAddr(self,id):
self.hide()
self.addrSignal.emit(0,id) class Chapter(QWidget):
getTarget = pyqtSignal(int,int)
ret2Main = pyqtSignal()
def __init__(self,parent = None):
super(Chapter,self).__init__(parent)
self.resize(1024,768)
self.button = QPushButton(u'主界面',self)
self.nextPa = QPushButton(u'下一页',self)
self.prePa = QPushButton(u'上一页',self)
self.imgScrol = QScrollArea(self)
self.imgLabel = QLabel(self.imgScrol) self.imgScrol.setWidget(self.imgLabel)
self.imgScrol.setWidgetResizable(True) # 关键！否则不能正常显示 layout = QGridLayout(self)
layout.addWidget(self.button,1,1)
layout.addWidget(self.nextPa,1,0)
layout.addWidget(self.prePa,1,2)
layout.addWidget(self.imgScrol,0,0)
self.setLayout(layout) def connectToMain(self,mainChapter):
self.mainChapter = mainChapter
self.connect(self.button,SIGNAL('clicked()'),self.returnToMain)
self.connect(self,SIGNAL('ret2Main()'),mainChapter.show) def connectToBook(self,bookmark):
self.bookmark = bookmark
self.connect(self.nextPa,SIGNAL('clicked()'),self.nextImg) # 信号不能重复连接！否则会发两个
self.connect(self.prePa,SIGNAL('clicked()'),self.preImg)
self.connect(self,SIGNAL('getTarget(int,int)'),self.bookmark.setChapterPage) def showImg(self):
self.target = unicode(self.target)
pixmap = QPixmap(self.target)
self.imgLabel.setPixmap(pixmap) def setChapterPage(self,target,page,chapter):
self.showMaximized()
self.chapter = chapter
self.page = page
self.target = target
self.showImg() def nextImg(self):
self.page += 1 # 越界在BookMark中处理
self.getTarget.emit(self.page,self.chapter) def preImg(self):
self.page -= 1
self.getTarget.emit(self.page,self.chapter) def returnToMain(self):
self.ret2Main.emit()
self.hide() app = QApplication(sys.argv)
main = MainChapters()
chap = Chapter()
book = BookMark()
chap.connectToMain(main)
chap.connectToBook(book)
main.connectToBook(book)
book.connectToChapter(chap)
main.show()
app.exec_()
应该加入个临时书签的功能，也就是退出后，如果是章节B页面13，那么下次再进入程序时也是章节B页面13