QPlainTextEdit : Make block readonly?
-
Ok
Consider a case when you editing some text in a editor. Now you open this(block of text) in new editor (with some more options) now I want unless I close that second editor first editor should make that selected text as readonly (not in selection mode anymore) that means I can edit any other text apart from that block (piece of text) in first editor.
Is it clear?
-
It is possible to do what you want. You should extend the QPlainTextEdit, and build in this sort of behavior. You can get the block(s) you are interested in and then customize how you want it to behave. These specific blocks can give you their bounds and then you can control events in these bounds. I think that should work. Not sure if there is an easier way.
-
relooked at this... did u come up with any alternate approach? u have me curious now :)
-
You could connect to the QPlainTextEdit::cursorPositionChanged () signal on both editors and when the user changes the position of the second editor to be inside the block the first is editing you can move the cursor outside of that block quickly
That might do the trick without inheriting.
-
@thomas, but that would show the cursor jump from the position set to outside of the block. might not be smooth, especially under load
-
@thomas there is a finite gap between the moment user hits the key and the execution of user code, but under heavy system load this gap could magnify
-
bq. Yes you can. E.g. for all non editable blocks use QTextBlock::setUserState() and give them 666. Then reimp keypress event or install an event filter and check if the cursor is in a block where the user value is 666. If so, don't propagate the event. That's all.
I'm looking for something like this. Cheers :)