Suggestions for relevant key binding

Qt Enthusiast

Hi All
![alt text]( image url)

I have a functionality to implement

The description of the functionality is

When we press the tab key the cursor moves from Name ,Description Item1 , item2
to all the text boxes

and if we press the key (Which I need decide and which I would like have suggestions on what key we can use ) so that can go from item2 ,to item1 , Description and Name

i,e to go on each text box in reverse direction .

COuld some one suggest a appropriate key to go into reverse direction

jsulm

@Qt-Enthusiast said in Suggestions for relevant key binding:

and if we press the key

This should work out of the box - Shift-Tab

Qt Enthusiast

def keyPressEvent(self, event):
# when the user presses Tab Key
# then the focus should go to next text box
if event.key() == QtCore.Qt.Key_Tab :
self.parent.focusNextTextWidget()
return

    modifiers = QtGui.QApplication.keyboardModifiers()
    # when the user presses Tab Key
    # then the focus should go to prev text box
    if ((modifiers & QtCore.Qt.ShiftModifier) and (event.key() == QtCore.Qt.Key_T)):
        self.parent.focusPrevTextWidget()
        return

    if ((modifiers & QtCore.Qt.ShiftModifier) and (event.key() == QtCore.Qt.Key_Tab)):
        print("\m I am here") 
        self.parent.focusPrevTextWidget()
        return

Qt Enthusiast

I am not able to print ---- > I am here

Qt Enthusiast

Please suggest why

Qt Enthusiast

When I type Shift + tab is goes from item empty box to item2 label then item1 text box then item1 label

Qt Enthusiast

but my requirement is to

got back directtly from item2 text box to item1 text box

jsulm

@Qt-Enthusiast There is no need to implement anything for switching focus via TAB/Shift-TAB - this should work without any code. In QtCreator/Designer you can specify the order in which Tab should got through the widgets.

Qt Enthusiast

My code is in pytqt and I have to go only to selected cells not all

Qt Enthusiast

@Qt-Enthusiast said in Suggestions for relevant key binding:

modifiers = QtGui.QApplication.keyboardModifiers()
# when the user presses Tab Key
# then the focus should go to prev text box
if ((modifiers & QtCore.Qt.ShiftModifier) and (event.key() == QtCore.Qt.Key_T)):
self.parent.focusPrevTextWidget()
return
if ((modifiers & QtCore.Qt.ShiftModifier) and (event.key() == QtCore.Qt.Key_Tab)):
    print("\m I am here") 
    self.parent.focusPrevTextWidget()

Why
modifiers = QtGui.QApplication.keyboardModifiers()
# when the user presses Tab Key
# then the focus should go to prev text box
if ((modifiers & QtCore.Qt.ShiftModifier) and (event.key() == QtCore.Qt.Key_T)):
self.parent.focusPrevTextWidget()
return

if ((modifiers & QtCore.Qt.ShiftModifier) and (event.key() == QtCore.Qt.Key_Tab)):
    print("\m I am here")  --------------------> I am not getting print here
    self.parent.focusPrevTextWidget()

jsulm

@Qt-Enthusiast I don't know why.
But as I wrote before there is NO need to implement Shift-Tab as it should work out of the box.

Qt Enthusiast

but I have to owerite then what shall I
modifiers = QtGui.QApplication.keyboardModifiers()
if ((modifiers & QtCore.Qt.ShiftModifier) and (event.key() == QtCore.Qt.Key_Tab)):
print("\m I am here") --------------------> I am not getting print here
self.parent.focusPrevTextWidget()

how do I get print("\m I am here") ---when I press Shift + Key_tab

jsulm

@Qt-Enthusiast said in Suggestions for relevant key binding:

but I have to owerite

Can you please explain why you think you have to?
If you want to change the order in which Tab/Shift-Tab navigates through widgets you can do it in Designer, or using https://doc.qt.io/qt-5/qwidget.html#setTabOrder in code.

Qt Enthusiast

I want to skip some of cells for that I have to overwrite

jsulm

@Qt-Enthusiast So, the ones you want to skip should never get focus? If so just use https://doc.qt.io/qt-5/qwidget.html#focusPolicy-prop
You can unset Qt::TabFocus, so it will not get focus via Tab.
Or Qt::NoFocus if it should never get focus.

Qt Enthusiast

def setRowSequenceForTabKey(self):
# next row sequence
# when the user press tab key
# code is to get the next sequence
# this is predefined for each className
if self.className == "VerificationObjective":
self.row_sequence = [1,2,3,4,6]
else:
self.row_sequence = [1,2,4]

        rowCount = self.table.rowCount()
        for i in range(0, rowCount):
             
            if cellWidget or i in self.row_sequence:
                cellWidget.setFocusPolicy(QtCore.Qt.NoFocus)

The following code is not working

Could you please suggestion

jsulm

@Qt-Enthusiast What is cellWidget here? You change the same cellWidget in the loop - I don't know how is this supposed to work? You should iterate over the cells and change their focus policy instead. Now you show that you're using a table. That is something you should have said straight from the beginning.

Qt Enthusiast

Can we check if the Widget type is QLineEdit ?

Christian Ehrlicher

@Qt-Enthusiast said in Suggestions for relevant key binding:

Can we check if the Widget type is QLineEdit ?

Yes - but we're a Qt forum, no python for beginners forum. Sorry.

Qt Enthusiast

So I have QtableWidget

as show in pictuure

For Row 0
1 ) The first column of each row is QLablel
2 second colum is Qlinedit

For Row 1 to Row2
1 ) The first column of each row is QLablel
2 second colum is QLabel

For Row 3 to end

1 ) The first column of each row is QLablel
2 second column has QWidget that has QSplitter(Vertical)
First widget of spiltter has QLineEdit
Other widget of splitter has QLabe;

My project is

When the user press KeyTab , the cursor should move from one QLineEdit to other Qlinedit ( it should not jump within the QLineEdit

Please suggest some generic way

For 3rd to last row the second column is Q![alt text](![image url]( image url))