Re: [PyQt] A quick question about Return in a text edit (Evan Driscoll)
On 12/04/2012 09:38 AM, David Cortesi wrote: This type of question is better addressed to the Qt fora, see qt-project.org/forums. That said... You definitely can monitor all keystrokes using keyPressEvent. You will likely find other reasons for doing so besides shift-enter, for example you might trap ^f to implement find. A whole lot of stuff comes through keyPressEvent, write a simple one first that just prints the event's members out to the console to get an idea. You will get very familiar with the key enum in the Qt namespace. Also for entering "newline"? In Q[Plain]TextEdit, you want to insert the Unicode para separator, \u2029. Not \n. Also, get Summerhill's book if you don't have it. Thank you (and Detlev) for your responses! EVan On Tue, Dec 4, 2012 at 4:00 AM, wrote: From what I can tell, I want to use a QPlainTextEdit. I don't think a QLineEdit will work because I will sometimes need multiple lines, but they'll arise in ways other than the user pressing enter. (Again, think about Pidgin: enter sends a message, shift-enter adds a newline.) Looking at the signals that are available, I don't see one that says what key has been pressed. I might be able connect a slot to textChanged() then do something like figure out what the cursor is and then look at the preceding character or something like that, but it seems much better to create a subclass of QPlainTextEdit and override the keyPressEvent() (or maybe keyReleaseEvent()?) function. ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] A quick question about Return in a text edit
Hi, you are right. keyPressEvent() should do the job. Detlev On Monday 03 December 2012, 17:56:12 Evan Driscoll wrote: > I want to make a UI that carries out an action when the user presses > return (think like in Pidgin), and I have a couple questions about how > to do this. I've dabbled a very small amount but I'm basically a (Py)Qt > newb. > > From what I can tell, I want to use a QPlainTextEdit. I don't think a > QLineEdit will work because I will sometimes need multiple lines, but > they'll arise in ways other than the user pressing enter. (Again, think > about Pidgin: enter sends a message, shift-enter adds a newline.) > > Looking at the signals that are available, I don't see one that says > what key has been pressed. I might be able connect a slot to > textChanged() then do something like figure out what the cursor is and > then look at the preceding character or something like that, but it > seems much better to create a subclass of QPlainTextEdit and override > the keyPressEvent() (or maybe keyReleaseEvent()?) function. > > Does this all seem reasonable, or am I missing a better approach? > > Evan -- Detlev Offenbach det...@die-offenbachs.de___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] A quick question about Return in a text edit (Evan Driscoll)
This type of question is better addressed to the Qt fora, see qt-project.org/forums. That said... You definitely can monitor all keystrokes using keyPressEvent. You will likely find other reasons for doing so besides shift-enter, for example you might trap ^f to implement find. A whole lot of stuff comes through keyPressEvent, write a simple one first that just prints the event's members out to the console to get an idea. You will get very familiar with the key enum in the Qt namespace. Also for entering "newline"? In Q[Plain]TextEdit, you want to insert the Unicode para separator, \u2029. Not \n. Also, get Summerhill's book if you don't have it. On Tue, Dec 4, 2012 at 4:00 AM, wrote: > From what I can tell, I want to use a QPlainTextEdit. I don't think a > QLineEdit will work because I will sometimes need multiple lines, but > they'll arise in ways other than the user pressing enter. (Again, think > about Pidgin: enter sends a message, shift-enter adds a newline.) > > Looking at the signals that are available, I don't see one that says > what key has been pressed. I might be able connect a slot to > textChanged() then do something like figure out what the cursor is and > then look at the preceding character or something like that, but it > seems much better to create a subclass of QPlainTextEdit and override > the keyPressEvent() (or maybe keyReleaseEvent()?) function. ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
[PyQt] A quick question about Return in a text edit
I want to make a UI that carries out an action when the user presses return (think like in Pidgin), and I have a couple questions about how to do this. I've dabbled a very small amount but I'm basically a (Py)Qt newb. From what I can tell, I want to use a QPlainTextEdit. I don't think a QLineEdit will work because I will sometimes need multiple lines, but they'll arise in ways other than the user pressing enter. (Again, think about Pidgin: enter sends a message, shift-enter adds a newline.) Looking at the signals that are available, I don't see one that says what key has been pressed. I might be able connect a slot to textChanged() then do something like figure out what the cursor is and then look at the preceding character or something like that, but it seems much better to create a subclass of QPlainTextEdit and override the keyPressEvent() (or maybe keyReleaseEvent()?) function. Does this all seem reasonable, or am I missing a better approach? Evan signature.asc Description: OpenPGP digital signature ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
