Hello Vojtech
Impressive what you are able to do!!! I can't find my bugs with good
eyes and have no idea how one would find them without seeing the code. I
changed a few things in your file and hope, the resulting solution fits
your needs:
- fixed rowCount of your sudoku (was 10, now 9)
- overwrote QPushButton and QSpinBox to store their index and to
implement custom keyPressEvent behaviour
- navigate using arrows, start editing by hitting enter or return.
- change value of the spinbox using arrows, finish editing by hitting
enter, continue navigating
I hope this helps! If you have further questions, feel free to ask again!
Merry Christmas! Aaron
Am 22.12.2013 18:15, schrieb Vojtěch Polášek:
Greetings,
my name is Vojtěch Polášek and I am a blind student from czech Republic.
I am creating an application in Pyside with Python 3.2. I would like to
create a sudoku game accessible for blind and visually impaired people.
I have created a main window, added a widget which contains 81 buttons
in a grid layout. Now my idea is, that after pressing a button, that
button would disappear and would be replaced by some other controll
which would allow you to change the value. I chose QSpinBox for now.
This step works well, although I had to implement my own eventfilter,
because QT in Linux uses arrows to browse available elements on the
screen. Never mind.
Now this is the way in which I replace a button with a spinbox. This
function is connected to the QPushButton.clicked signal:
def editValue(self):
print ('editing')
senderpos =
self.grid.getItemPosition(self.grid.indexOf(self.sender()))
self.grid.addWidget(self.spinbox, senderpos[0], senderpos[1])
print ('added')
self.spinbox.setValue(int(self.sender().text()))
print ('value set')
self.spinbox.show()
print('showed')
self.spinbox.setFocus()
print('focused')
self.spinbox.editingFinished.connect(self.storeValue)
print('connected')
Don't mind those print statements, they are there for debugging
purposes, because I haven't found a way of debugging Pyside with PDB.
The problem is, that this signal is also called after I press a button
and this function is executed. I don't manipulate with spinbox in any
manner. Only thing that is set is its accepted range of input.
What could be the problem?
I am attaching the source code.
Thank you very much,
Vojtěch Polášek
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#!/usr/bin/env python
import sys, time
from PySide import QtGui, QtCore
class MainWindow(QtGui.QMainWindow):
def __init__(self):
super (MainWindow, self).__init__()
self.setCentralWidget(SudokuBoard(self))
self.setWindowTitle ("test")
self.show()
class Button(QtGui.QPushButton):
def __init__(self, text, index, parent):
super (Button, self).__init__(text, parent)
self.index = index
def keyPressEvent(self, event):
if event.key() in [QtCore.Qt.Key_Up, QtCore.Qt.Key_Down, QtCore.Qt.Key_Left, QtCore.Qt.Key_Right, QtCore.Qt.Key_Enter, QtCore.Qt.Key_Return]:
event.ignore()
class SpinBox(QtGui.QSpinBox):
def __init__(self, value, index, parent):
super (SpinBox, self).__init__(parent)
self.setRange (1, 9)
self.setValue(value)
self.index = index
def keyPressEvent(self, event):
if event.key() in [QtCore.Qt.Key_Enter, QtCore.Qt.Key_Return]:
self.editingFinished.emit()
else:
super (SpinBox, self).keyPressEvent(event)
class SudokuBoard(QtGui.QWidget):
def __init__(self, parent):
super (SudokuBoard, self).__init__(parent)
self.initUI()
def initUI(self):
self.grid = QtGui.QGridLayout()
self.buttons = {}
for i in range(0, 81):
button = Button(str(i+1), i, self)
self.buttons[i] = button
self.grid.addWidget(button, i / 9, i % 9)
self.buttons[i].clicked.connect(self.editValue)
button.setStyleSheet("QPushButton:focus{ background-color: green; }")
self.setLayout (self.grid)
#
self.setGeometry (500, 500, 500, 600)
def keyPressEvent(self, event):
if event.key() in [QtCore.Qt.Key_Up, QtCore.Qt.Key_Down, QtCore.Qt.Key_Left, QtCore.Qt.Key_Right]:
offsets = {QtCore.Qt.Key_Up: -9,
QtCore.Qt.Key_Down: 9,
QtCore.Qt.Key_Left: -1,
QtCore.Qt.Key_Right: 1}
new_index = self.focusWidget().index + offsets[event.key()]
if (new_index >= 0) and (new_index <= 80):
self.buttons[new_index].setFocus()
elif event.key() in [QtCore.Qt.Key_Enter, QtCore.Qt.Key_Return] and isinstance(self.focusWidget(), QtGui.QPushButton):
self.editValue()
def editValue(self):
print 'editing'
button = self.focusWidget()
index = button.index
self.grid.removeItem(self.grid.itemAtPosition(index / 9, index % 9))
button.hide()
spinbox = SpinBox(int(button.text()), index, self)
spinbox.setFocus()
spinbox.editingFinished.connect(self.storeValue)
self.grid.addWidget(spinbox, index / 9, index % 9)
def storeValue(self):
print 'storing'
spinbox = self.sender()
spinbox.editingFinished.disconnect(self.storeValue) # otherwise storeValue is called twice, once when enter is pressed, once when losing focus
index = spinbox.index
button = self.buttons[index]
button.show()
button.setFocus()
self.grid.removeItem(self.grid.itemAtPosition(index / 9, index % 9))
spinbox.hide()
self.grid.addWidget(button, index / 9, index % 9)
def main():
app = QtGui.QApplication(sys.argv)
w = MainWindow()
sys.exit (app.exec_())
main()
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