這篇是為了做Rss項目而研究WebKit后的副產品，但是它的意義遠大于離線Rss閱讀
這是另一個RichEdit 并且編輯起來更容易
而且它很容易轉換到B/S結構，不管需求是環肥燕瘦都能適應......
估計這是最簡單的一種 xml文檔、html預覽、RichEdit 三位一體的方案了......
代碼：
import sys,locale
encoding=locale.getdefaultlocale()[1]
from PyQt4 import Qt
from PyQt4 import QtCore
from PyQt4 import QtGui
from PyQt4 import QtWebKit
html=r'''<html>
<head></head>
<body>
<script>
function onChanged(e,id) {
var element =document.getElementById(id);
python.onChanged(id,element.textContent);
}
</script>
<div id="main">
<h1 id="title"" contenteditable="true" onkeyup="onChanged(event,'title')">T1</h1>
<div id='body'>
<p id='body_line1' contenteditable="true" onkeyup="onChanged(event,'body_line1')">123456</p>
<p id='body_line2' contenteditable="true" onkeyup="onChanged(event,'body_line2')">abdcdef</p>
</div>
</div>
<body>
</html>
'''
class PythonJS(QtCore.QObject):
__pyqtSignals__ = ("contentChanged(const QString &,const QString &)")
@QtCore.pyqtSignature("QString,QString")
def onChanged(self, id,msg):
self.emit(QtCore.SIGNAL('contentChanged(const QString &,const QString &)'),id, msg)
@QtCore.pyqtSignature("", result="QString")
def message(self):
return "Message!"
class MainWindow(QtGui.QMainWindow):
def __init__(self):
super(MainWindow,self).__init__()
self.update=True
self.tabs=QtGui.QTabWidget(self)
self.browser=QtWebKit.QWebView(self.tabs)
self.edit=QtGui.QPlainTextEdit(self.tabs)
self.tabs.addTab(self.browser,'View')
self.tabs.addTab(self.edit,'Edit')
self.html=html
self.edit.setPlainText(self.html)
self.pjs=PythonJS()
self.connect(self.edit,QtCore.SIGNAL('textChanged()'),self.onTextChanged)
self.connect(self.pjs,QtCore.SIGNAL('contentChanged(const QString &,const QString &)'),self.onJSMessage)
self.connect(self.browser.page().mainFrame(),QtCore.SIGNAL('javaScriptWindowObjectCleared ()'),self.onObjectClear)
self.browser.setHtml(self.html)
def onJSMessage(self,id,msg):
self.html= self.browser.page().mainFrame ().toHtml()
#print unicode(self.html).encode(encoding)
self.setEditText(self.html)
def resizeEvent(self,s):
size=self.size()
self.tabs.resize(size)
def setEditText(self,str,update=False):
t=self.update
self.update=update
self.edit.setPlainText(str)
self.update=t
def onTextChanged(self):
if self.update:
self.html= self.edit.toPlainText()
self.browser.setHtml(self.html)
self.browser.page().mainFrame().addToJavaScriptWindowObject('python',self.pjs)
self.browser.reload()
def onObjectClear(self):
self.browser.page().mainFrame().addToJavaScriptWindowObject('python',self.pjs)
if __name__=='__main__':
app=QtGui.QApplication(sys.argv)
frame=MainWindow()
frame.show()
sys.exit(app.exec_())
posted on 2008-07-30 15:55
zarra 閱讀(1351)
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