I've been assembling a text editor based on this example by Peter Goldsborough. The text box is populated from an html, but displays as rich text.
I've made it so users are able to click on hyperlinks already in the text box. However, I have no idea where to start in adding functionality so that users can add their own, new clickable hyperlinks as they edit. I would be very grateful for pointers from those who know!
(I am specifically trying to avoid the approach taken here - this fellow seems to be using a parser that scans the entire document for link-like structure and adds in the html tags. That seems much harder and more error-prone than it needs to be, and I wonder if there is just a way to surround highlighted text with html tags.)
I tried out the suggestion below by @kuba-ober, though since I'm working in the PyQt4 binding of Qt for Python, I modified it:
def setHyperlinkOnSelection(self, url):
cursor = self.text.textCursor()
if not cursor.hasSelection():
return False
format = QtGui.QTextCharFormat()
format.setAnchor(True)
format.setAnchorHref(url)
cursor.mergeBlockCharFormat(format)
return True
That did not work, unfortunately, but I used that to adapt some of the formatting methods in Goldsborough's example to yield the following:
def setHyperlinkOnSelection(self, url):
# Grab the text's format
fmt = self.text.currentCharFormat()
# Set the format to an anchor with the specified url
fmt.setAnchor(True)
fmt.setAnchorHref(url)
# And set the next char format
self.text.setCurrentCharFormat(fmt)
That results in a link (blue underlined text which, when converted to html, is correctly formatted with "a href" tags), but it is not clickable (hovering over the text with the mouse doesn't change to the pointing hand, and clicking doesn't do anything)...
Ok, I figured it out - links don't work when the qtextbrowser is set to read-only mode. More details on that here. If anyone has any info on how to overcome this apparent limitation in Qt, I'd be grateful, but for now I'm gonna work around this by having a quick-switch between read-only and editable mode.