Does QWebView support Unicode characters > 0xFFFF (for Cuneiform fonts)

**nickw2066** · 8th November 2012, 19:16

If I use:

Qt Code:

Switch view

HTML = u"<html><body>++\U00012000++</body></html>"
qStr = QString(HTML)
print qStr.toUtf8()

HTML = u"<html><body>++\U00012000++</body></html>"
qStr = QString(HTML)
print qStr.toUtf8()

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then the HTML string with the correct glyph in it is printed.

If I use:

Qt Code:

Switch view

#!/usr/bin/env python
# -*- coding: UTF-8 -*-
'''
Created on 7 November 2012
 
@author: nick
'''
 
import sys
 
from PyQt4.QtCore import QString
from PyQt4.QtGui import QApplication, QWidget
from PyQt4.QtWebKit import QWebView
 
# Constants
CUNE_STR = u"\U00012000"
HTML = u"<html><body>++%1++</body></html>"
 
# Main
 
qStr = QString(HTML).arg(QString(CUNE_STR))
 
app = QApplication(sys.argv)
 
widget = QWidget()
 
widget.resize(320, 240)
widget.setWindowTitle("Hello, World!")
widget.show()
 
webView = QWebView(widget);
webView.setHtml(qStr);
webView.show()
 
sys.exit(app.exec_())

#!/usr/bin/env python
# -*- coding: UTF-8 -*-
'''
Created on 7 November 2012

@author: nick
'''

import sys

from PyQt4.QtCore import QString
from PyQt4.QtGui import QApplication, QWidget
from PyQt4.QtWebKit import QWebView

# Constants
CUNE_STR = u"\U00012000"
HTML = u"<html><body>++%1++</body></html>"

# Main

qStr = QString(HTML).arg(QString(CUNE_STR))

app = QApplication(sys.argv)

widget = QWidget()
 
widget.resize(320, 240)
widget.setWindowTitle("Hello, World!")
widget.show()

webView = QWebView(widget);
webView.setHtml(qStr);
webView.show()
 
sys.exit(app.exec_())

To copy to clipboard, switch view to plain text mode

then the same problem occurs: a window pops up with: ++<two empty boxes>++.

**ChrisW67** · 8th November 2012, 19:40

Aarrgghh!! It looks like the Python-esque QString::arg() is mangling your character.

Perhaps you could use Python methods to put the strings together then do a single conversion into QString.

**nickw2066** · 8th November 2012, 20:13

I don't think it's a string-combining problem, as even this:

Qt Code:

Switch view

#!/usr/bin/env python
# -*- coding: UTF-8 -*-
'''
Created on 7 November 2012
 
@author: nick
'''
 
import sys
 
from PyQt4.QtCore import QString
from PyQt4.QtGui import QApplication, QWidget
from PyQt4.QtWebKit import QWebView
 
# Constants
CUNE_STR = u"\U00012000"
HTML = u"<html><body>++\U00012000++</body></html>"
 
# Main
 
#qStr = QString(HTML).arg(QString(CUNE_STR))
 
app = QApplication(sys.argv)
 
widget = QWidget()
 
widget.resize(320, 240)
widget.setWindowTitle("Hello, World!")
widget.show()
 
webView = QWebView(widget);
webView.setHtml(HTML);
webView.show()
 
sys.exit(app.exec_())

#!/usr/bin/env python
# -*- coding: UTF-8 -*-
'''
Created on 7 November 2012

@author: nick
'''

import sys

from PyQt4.QtCore import QString
from PyQt4.QtGui import QApplication, QWidget
from PyQt4.QtWebKit import QWebView

# Constants
CUNE_STR = u"\U00012000"
HTML = u"<html><body>++\U00012000++</body></html>"

# Main

#qStr = QString(HTML).arg(QString(CUNE_STR))

app = QApplication(sys.argv)

widget = QWidget()
 
widget.resize(320, 240)
widget.setWindowTitle("Hello, World!")
widget.show()

webView = QWebView(widget);
webView.setHtml(HTML);
webView.show()
 
sys.exit(app.exec_())

To copy to clipboard, switch view to plain text mode

where I make no use of QString, still only produces a box with: "++<two empty boxes>++"

Considering unicode characters < 0xFFFF, I'm getting some strange behaviour. For example:

Qt Code:

Switch view

#!/usr/bin/env python
# -*- coding: UTF-8 -*-
'''
Created on 7 November 2012
 
@author: nick
'''
 
import sys
 
#from PyQt4.QtCore import QString
from PyQt4.QtGui import QApplication, QWidget
from PyQt4.QtWebKit import QWebView
 
# Constants
#CUNE_STR = u"\U00012000"
HTML = u"<html><body>++Ø€Ø€\u1250++</body></html>"
 
# Main
 
#qStr = QString(HTML).arg(QString(CUNE_STR))
 
app = QApplication(sys.argv)
 
widget = QWidget()
 
widget.resize(320, 240)
widget.setWindowTitle("Hello, World!")
widget.show()
 
webView = QWebView(widget);
webView.setHtml(HTML);
webView.show()
 
sys.exit(app.exec_())

#!/usr/bin/env python
# -*- coding: UTF-8 -*-
'''
Created on 7 November 2012

@author: nick
'''

import sys

#from PyQt4.QtCore import QString
from PyQt4.QtGui import QApplication, QWidget
from PyQt4.QtWebKit import QWebView

# Constants
#CUNE_STR = u"\U00012000"
HTML = u"<html><body>++Ø€Ø€\u1250++</body></html>"

# Main

#qStr = QString(HTML).arg(QString(CUNE_STR))

app = QApplication(sys.argv)

widget = QWidget()
 
widget.resize(320, 240)
widget.setWindowTitle("Hello, World!")
widget.show()

webView = QWebView(widget);
webView.setHtml(HTML);
webView.show()
 
sys.exit(app.exec_())

To copy to clipboard, switch view to plain text mode

displays the correct character in the window, but if I change the HTML string to:

Qt Code:

Switch view

HTML = u"<html><body>++Ø€Ø€\u1200++</body></html>"

HTML = u"<html><body>++Ø€Ø€\u1200++</body></html>"

To copy to clipboard, switch view to plain text mode

only "++<empty box>++" displays (EDIT: My system seems to have the font to display this glyph because it displays correctly in Mac's Character Viewer).