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dgobbi/QVTKRenderWindowInteractor.py

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Simple QVTKRenderWindowInteractor example in Python
Raw
QtConeExample.py
# coding=utf-8
import sys
from vtkmodules.vtkFiltersSources import vtkConeSource
from vtkmodules.vtkRenderingCore import vtkActor, vtkPolyDataMapper, vtkRenderer
# load implementations for rendering and interaction factory classes
import vtkmodules.vtkRenderingOpenGL2
import vtkmodules.vtkInteractionStyle
import QVTKRenderWindowInteractor as QVTK
QVTKRenderWindowInteractor = QVTK.QVTKRenderWindowInteractor
if QVTK.PyQtImpl == 'PySide6':
from PySide6.QtCore import Qt
from PySide6.QtWidgets import QApplication, QMainWindow
elif QVTK.PyQtImpl == 'PySide2':
from PySide2.QtCore import Qt
from PySide2.QtWidgets import QApplication, QMainWindow
else:
from PySide.QtCore import Qt
from PySide.QtGui import QApplication, QMainWindow
def QVTKRenderWidgetConeExample(argv):
"""A simple example that uses the QVTKRenderWindowInteractor class."""
# every QT app needs an app
app = QApplication(['QVTKRenderWindowInteractor'])
window = QMainWindow()
# create the widget
widget = QVTKRenderWindowInteractor(window)
window.setCentralWidget(widget)
# if you don't want the 'q' key to exit comment this.
widget.AddObserver("ExitEvent", lambda o, e, a=app: a.quit())
ren = vtkRenderer()
widget.GetRenderWindow().AddRenderer(ren)
cone = vtkConeSource()
cone.SetResolution(8)
coneMapper = vtkPolyDataMapper()
coneMapper.SetInputConnection(cone.GetOutputPort())
coneActor = vtkActor()
coneActor.SetMapper(coneMapper)
ren.AddActor(coneActor)
# show the widget
window.show()
widget.Initialize()
widget.Start()
# start event processing
# Source: https://doc.qt.io/qtforpython/porting_from2.html
# 'exec_' is deprecated and will be removed in the future.
# Use 'exec' instead.
try:
app.exec()
except AttributeError:
app.exec_()
if __name__ == "__main__":
QVTKRenderWidgetConeExample(sys.argv)
Raw
QVTKRenderWindowInteractor.py
# coding=utf-8
"""
A simple VTK widget for PyQt or PySide.
See http://www.trolltech.com for Qt documentation,
http://www.riverbankcomputing.co.uk for PyQt, and
http://pyside.github.io for PySide.
This class is based on the vtkGenericRenderWindowInteractor and is
therefore fairly powerful. It should also play nicely with the
vtk3DWidget code.
Created by Prabhu Ramachandran, May 2002
Based on David Gobbi's QVTKRenderWidget.py
Changes by Gerard Vermeulen Feb. 2003
Win32 support.
Changes by Gerard Vermeulen, May 2003
Bug fixes and better integration with the Qt framework.
Changes by Phil Thompson, Nov. 2006
Ported to PyQt v4.
Added support for wheel events.
Changes by Phil Thompson, Oct. 2007
Bug fixes.
Changes by Phil Thompson, Mar. 2008
Added cursor support.
Changes by Rodrigo Mologni, Sep. 2013 (Credit to Daniele Esposti)
Bug fix to PySide: Converts PyCObject to void pointer.
Changes by Greg Schussman, Aug. 2014
The keyPressEvent function now passes keysym instead of None.
Changes by Alex Tsui, Apr. 2015
Port from PyQt4 to PyQt5.
Changes by Fabian Wenzel, Jan. 2016
Support for Python3
Changes by Tobias Hänel, Sep. 2018
Support for PySide2
Changes by Ruben de Bruin, Aug. 2019
Fixes to the keyPressEvent function
Changes by Chen Jintao, Aug. 2021
Support for PySide6
"""
# Check whether a specific PyQt implementation was chosen
try:
import vtkmodules.qt
PyQtImpl = vtkmodules.qt.PyQtImpl
except ImportError:
pass
# Check whether a specific QVTKRenderWindowInteractor base
# class was chosen, can be set to "QGLWidget" in
# PyQt implementation version lower than Pyside6,
# or "QOpenGLWidget" in Pyside6
QVTKRWIBase = "QWidget"
try:
import vtkmodules.qt
QVTKRWIBase = vtkmodules.qt.QVTKRWIBase
except ImportError:
pass
from vtkmodules.vtkRenderingCore import vtkRenderWindow
from vtkmodules.vtkRenderingUI import vtkGenericRenderWindowInteractor
if PyQtImpl is None:
# Autodetect the PyQt implementation to use
try:
import PySide6
PyQtImpl = "PySide6"
except ImportError:
try:
import PyQt5
PyQtImpl = "PyQt5"
except ImportError:
try:
import PySide2
PyQtImpl = "PySide2"
except ImportError:
try:
import PyQt4
PyQtImpl = "PyQt4"
except ImportError:
try:
import PySide
PyQtImpl = "PySide"
except ImportError:
raise ImportError("Cannot load either PyQt or PySide")
# Check the compatibility of PyQtImpl and QVTKRWIBase
if QVTKRWIBase != "QWidget":
if PyQtImpl in ["PySide6"] and QVTKRWIBase == "QOpenGLWidget":
pass # compatible
elif PyQtImpl in ["PyQt5", "PySide2","PyQt4", "PySide"] and QVTKRWIBase == "QGLWidget":
pass # compatible
else:
raise ImportError("Cannot load " + QVTKRWIBase + " from " + PyQtImpl)
if PyQtImpl == "PySide6":
if QVTKRWIBase == "QOpenGLWidget":
from PySide6.QtOpenGLWidgets import QOpenGLWidget
from PySide6.QtWidgets import QWidget
from PySide6.QtWidgets import QSizePolicy
from PySide6.QtWidgets import QApplication
from PySide6.QtWidgets import QMainWindow
from PySide6.QtGui import QCursor
from PySide6.QtCore import Qt
from PySide6.QtCore import QTimer
from PySide6.QtCore import QObject
from PySide6.QtCore import QSize
from PySide6.QtCore import QEvent
elif PyQtImpl == "PyQt5":
if QVTKRWIBase == "QGLWidget":
from PyQt5.QtOpenGL import QGLWidget
from PyQt5.QtWidgets import QWidget
from PyQt5.QtWidgets import QSizePolicy
from PyQt5.QtWidgets import QApplication
from PyQt5.QtWidgets import QMainWindow
from PyQt5.QtGui import QCursor
from PyQt5.QtCore import Qt
from PyQt5.QtCore import QTimer
from PyQt5.QtCore import QObject
from PyQt5.QtCore import QSize
from PyQt5.QtCore import QEvent
elif PyQtImpl == "PySide2":
if QVTKRWIBase == "QGLWidget":
from PySide2.QtOpenGL import QGLWidget
from PySide2.QtWidgets import QWidget
from PySide2.QtWidgets import QSizePolicy
from PySide2.QtWidgets import QApplication
from PySide2.QtWidgets import QMainWindow
from PySide2.QtGui import QCursor
from PySide2.QtCore import Qt
from PySide2.QtCore import QTimer
from PySide2.QtCore import QObject
from PySide2.QtCore import QSize
from PySide2.QtCore import QEvent
elif PyQtImpl == "PyQt4":
if QVTKRWIBase == "QGLWidget":
from PyQt4.QtOpenGL import QGLWidget
from PyQt4.QtGui import QWidget
from PyQt4.QtGui import QSizePolicy
from PyQt4.QtGui import QApplication
from PyQt4.QtGui import QMainWindow
from PyQt4.QtCore import Qt
from PyQt4.QtCore import QTimer
from PyQt4.QtCore import QObject
from PyQt4.QtCore import QSize
from PyQt4.QtCore import QEvent
elif PyQtImpl == "PySide":
if QVTKRWIBase == "QGLWidget":
from PySide.QtOpenGL import QGLWidget
from PySide.QtGui import QWidget
from PySide.QtGui import QSizePolicy
from PySide.QtGui import QApplication
from PySide.QtGui import QMainWindow
from PySide.QtCore import Qt
from PySide.QtCore import QTimer
from PySide.QtCore import QObject
from PySide.QtCore import QSize
from PySide.QtCore import QEvent
else:
raise ImportError("Unknown PyQt implementation " + repr(PyQtImpl))
# Define types for base class, based on string
if QVTKRWIBase == "QWidget":
QVTKRWIBaseClass = QWidget
elif QVTKRWIBase == "QGLWidget":
QVTKRWIBaseClass = QGLWidget
elif QVTKRWIBase == "QOpenGLWidget":
QVTKRWIBaseClass = QOpenGLWidget
else:
raise ImportError("Unknown base class for QVTKRenderWindowInteractor " + QVTKRWIBase)
class QVTKRenderWindowInteractor(QVTKRWIBaseClass):
""" A QVTKRenderWindowInteractor for Python and Qt. Uses a
vtkGenericRenderWindowInteractor to handle the interactions. Use
GetRenderWindow() to get the vtkRenderWindow. Create with the
keyword stereo=1 in order to generate a stereo-capable window.
The user interface is summarized in vtkInteractorStyle.h:
- Keypress j / Keypress t: toggle between joystick (position
sensitive) and trackball (motion sensitive) styles. In joystick
style, motion occurs continuously as long as a mouse button is
pressed. In trackball style, motion occurs when the mouse button
is pressed and the mouse pointer moves.
- Keypress c / Keypress o: toggle between camera and object
(actor) modes. In camera mode, mouse events affect the camera
position and focal point. In object mode, mouse events affect
the actor that is under the mouse pointer.
- Button 1: rotate the camera around its focal point (if camera
mode) or rotate the actor around its origin (if actor mode). The
rotation is in the direction defined from the center of the
renderer's viewport towards the mouse position. In joystick mode,
the magnitude of the rotation is determined by the distance the
mouse is from the center of the render window.
- Button 2: pan the camera (if camera mode) or translate the actor
(if object mode). In joystick mode, the direction of pan or
translation is from the center of the viewport towards the mouse
position. In trackball mode, the direction of motion is the
direction the mouse moves. (Note: with 2-button mice, pan is
defined as <Shift>-Button 1.)
- Button 3: zoom the camera (if camera mode) or scale the actor
(if object mode). Zoom in/increase scale if the mouse position is
in the top half of the viewport; zoom out/decrease scale if the
mouse position is in the bottom half. In joystick mode, the amount
of zoom is controlled by the distance of the mouse pointer from
the horizontal centerline of the window.
- Keypress 3: toggle the render window into and out of stereo
mode. By default, red-blue stereo pairs are created. Some systems
support Crystal Eyes LCD stereo glasses; you have to invoke
SetStereoTypeToCrystalEyes() on the rendering window. Note: to
use stereo you also need to pass a stereo=1 keyword argument to
the constructor.
- Keypress e: exit the application.
- Keypress f: fly to the picked point
- Keypress p: perform a pick operation. The render window interactor
has an internal instance of vtkCellPicker that it uses to pick.
- Keypress r: reset the camera view along the current view
direction. Centers the actors and moves the camera so that all actors
are visible.
- Keypress s: modify the representation of all actors so that they
are surfaces.
- Keypress u: invoke the user-defined function. Typically, this
keypress will bring up an interactor that you can type commands in.
- Keypress w: modify the representation of all actors so that they
are wireframe.
"""
# Map between VTK and Qt cursors.
_CURSOR_MAP = {
0: Qt.ArrowCursor, # VTK_CURSOR_DEFAULT
1: Qt.ArrowCursor, # VTK_CURSOR_ARROW
2: Qt.SizeBDiagCursor, # VTK_CURSOR_SIZENE
3: Qt.SizeFDiagCursor, # VTK_CURSOR_SIZENWSE
4: Qt.SizeBDiagCursor, # VTK_CURSOR_SIZESW
5: Qt.SizeFDiagCursor, # VTK_CURSOR_SIZESE
6: Qt.SizeVerCursor, # VTK_CURSOR_SIZENS
7: Qt.SizeHorCursor, # VTK_CURSOR_SIZEWE
8: Qt.SizeAllCursor, # VTK_CURSOR_SIZEALL
9: Qt.PointingHandCursor, # VTK_CURSOR_HAND
10: Qt.CrossCursor, # VTK_CURSOR_CROSSHAIR
}
def __init__(self, parent=None, **kw):
# the current button
self._ActiveButton = Qt.NoButton
# private attributes
self.__saveX = 0
self.__saveY = 0
self.__saveModifiers = Qt.NoModifier
self.__saveButtons = Qt.NoButton
self.__wheelDelta = 0
# do special handling of some keywords:
# stereo, rw
try:
stereo = bool(kw['stereo'])
except KeyError:
stereo = False
try:
rw = kw['rw']
except KeyError:
rw = None
# create base qt-level widget
if QVTKRWIBase == "QWidget":
if "wflags" in kw:
wflags = kw['wflags']
else:
wflags = Qt.WindowFlags()
QWidget.__init__(self, parent, wflags | Qt.MSWindowsOwnDC)
elif QVTKRWIBase == "QGLWidget":
QGLWidget.__init__(self, parent)
elif QVTKRWIBase == "QOpenGLWidget":
QOpenGLWidget.__init__(self, parent)
if rw: # user-supplied render window
self._RenderWindow = rw
else:
self._RenderWindow = vtkRenderWindow()
WId = self.winId()
# Python2
if type(WId).__name__ == 'PyCObject':
from ctypes import pythonapi, c_void_p, py_object
pythonapi.PyCObject_AsVoidPtr.restype = c_void_p
pythonapi.PyCObject_AsVoidPtr.argtypes = [py_object]
WId = pythonapi.PyCObject_AsVoidPtr(WId)
# Python3
elif type(WId).__name__ == 'PyCapsule':
from ctypes import pythonapi, c_void_p, py_object, c_char_p
pythonapi.PyCapsule_GetName.restype = c_char_p
pythonapi.PyCapsule_GetName.argtypes = [py_object]
name = pythonapi.PyCapsule_GetName(WId)
pythonapi.PyCapsule_GetPointer.restype = c_void_p
pythonapi.PyCapsule_GetPointer.argtypes = [py_object, c_char_p]
WId = pythonapi.PyCapsule_GetPointer(WId, name)
self._RenderWindow.SetWindowInfo(str(int(WId)))
if stereo: # stereo mode
self._RenderWindow.StereoCapableWindowOn()
self._RenderWindow.SetStereoTypeToCrystalEyes()
try:
self._Iren = kw['iren']
except KeyError:
self._Iren = vtkGenericRenderWindowInteractor()
self._Iren.SetRenderWindow(self._RenderWindow)
# do all the necessary qt setup
self.setAttribute(Qt.WA_OpaquePaintEvent)
self.setAttribute(Qt.WA_PaintOnScreen)
self.setMouseTracking(True) # get all mouse events
self.setFocusPolicy(Qt.WheelFocus)
self.setSizePolicy(QSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding))
self._Timer = QTimer(self)
self._Timer.timeout.connect(self.TimerEvent)
self._Iren.AddObserver('CreateTimerEvent', self.CreateTimer)
self._Iren.AddObserver('DestroyTimerEvent', self.DestroyTimer)
self._Iren.GetRenderWindow().AddObserver('CursorChangedEvent',
self.CursorChangedEvent)
# If we've a parent, it does not close the child when closed.
# Connect the parent's destroyed signal to this widget's close
# slot for proper cleanup of VTK objects.
if self.parent():
self.parent().destroyed.connect(self.close, Qt.DirectConnection)
def __getattr__(self, attr):
"""Makes the object behave like a vtkGenericRenderWindowInteractor"""
if attr == '__vtk__':
return lambda t=self._Iren: t
elif hasattr(self._Iren, attr):
return getattr(self._Iren, attr)
else:
raise AttributeError(self.__class__.__name__ +
" has no attribute named " + attr)
def Finalize(self):
'''
Call internal cleanup method on VTK objects
'''
self._RenderWindow.Finalize()
def CreateTimer(self, obj, evt):
self._Timer.start(10)
def DestroyTimer(self, obj, evt):
self._Timer.stop()
return 1
def TimerEvent(self):
self._Iren.TimerEvent()
def CursorChangedEvent(self, obj, evt):
"""Called when the CursorChangedEvent fires on the render window."""
# This indirection is needed since when the event fires, the current
# cursor is not yet set so we defer this by which time the current
# cursor should have been set.
QTimer.singleShot(0, self.ShowCursor)
def HideCursor(self):
"""Hides the cursor."""
self.setCursor(Qt.BlankCursor)
def ShowCursor(self):
"""Shows the cursor."""
vtk_cursor = self._Iren.GetRenderWindow().GetCurrentCursor()
qt_cursor = self._CURSOR_MAP.get(vtk_cursor, Qt.ArrowCursor)
self.setCursor(qt_cursor)
def closeEvent(self, evt):
self.Finalize()
def sizeHint(self):
return QSize(400, 400)
def paintEngine(self):
return None
def paintEvent(self, ev):
self._Iren.Render()
def resizeEvent(self, ev):
scale = self._getPixelRatio()
w = int(round(scale*self.width()))
h = int(round(scale*self.height()))
self._RenderWindow.SetDPI(int(round(72*scale)))
vtkRenderWindow.SetSize(self._RenderWindow, w, h)
self._Iren.SetSize(w, h)
self._Iren.ConfigureEvent()
self.update()
def _GetKeyCharAndKeySym(self, ev):
""" Convert a Qt key into a char and a vtk keysym.
This is essentially copied from the c++ implementation in
GUISupport/Qt/QVTKInteractorAdapter.cxx.
"""
# if there is a char, convert its ASCII code to a VTK keysym
try:
keyChar = ev.text()[0]
keySym = _keysyms_for_ascii[ord(keyChar)]
except IndexError:
keyChar = '\0'
keySym = None
# next, try converting Qt key code to a VTK keysym
if keySym is None:
try:
keySym = _keysyms[ev.key()]
except KeyError:
keySym = None
# use "None" as a fallback
if keySym is None:
keySym = "None"
return keyChar, keySym
def _GetCtrlShift(self, ev):
ctrl = shift = False
if hasattr(ev, 'modifiers'):
if ev.modifiers() & Qt.ShiftModifier:
shift = True
if ev.modifiers() & Qt.ControlModifier:
ctrl = True
else:
if self.__saveModifiers & Qt.ShiftModifier:
shift = True
if self.__saveModifiers & Qt.ControlModifier:
ctrl = True
return ctrl, shift
@staticmethod
def _getPixelRatio():
if PyQtImpl in ["PyQt5", "PySide2", "PySide6"]:
# Source: https://stackoverflow.com/a/40053864/3388962
pos = QCursor.pos()
for screen in QApplication.screens():
rect = screen.geometry()
if rect.contains(pos):
return screen.devicePixelRatio()
# Should never happen, but try to find a good fallback.
return QApplication.instance().devicePixelRatio()
else:
# Qt4 seems not to provide any cross-platform means to get the
# pixel ratio.
return 1.
def _setEventInformation(self, x, y, ctrl, shift,
key, repeat=0, keysum=None):
scale = self._getPixelRatio()
self._Iren.SetEventInformation(int(round(x*scale)),
int(round((self.height()-y-1)*scale)),
ctrl, shift, key, repeat, keysum)
def enterEvent(self, ev):
ctrl, shift = self._GetCtrlShift(ev)
self._setEventInformation(self.__saveX, self.__saveY,
ctrl, shift, chr(0), 0, None)
self._Iren.EnterEvent()
def leaveEvent(self, ev):
ctrl, shift = self._GetCtrlShift(ev)
self._setEventInformation(self.__saveX, self.__saveY,
ctrl, shift, chr(0), 0, None)
self._Iren.LeaveEvent()
def mousePressEvent(self, ev):
ctrl, shift = self._GetCtrlShift(ev)
repeat = 0
if ev.type() == QEvent.MouseButtonDblClick:
repeat = 1
self._setEventInformation(ev.x(), ev.y(),
ctrl, shift, chr(0), repeat, None)
self._ActiveButton = ev.button()
if self._ActiveButton == Qt.LeftButton:
self._Iren.LeftButtonPressEvent()
elif self._ActiveButton == Qt.RightButton:
self._Iren.RightButtonPressEvent()
elif self._ActiveButton == Qt.MidButton:
self._Iren.MiddleButtonPressEvent()
def mouseReleaseEvent(self, ev):
ctrl, shift = self._GetCtrlShift(ev)
self._setEventInformation(ev.x(), ev.y(),
ctrl, shift, chr(0), 0, None)
if self._ActiveButton == Qt.LeftButton:
self._Iren.LeftButtonReleaseEvent()
elif self._ActiveButton == Qt.RightButton:
self._Iren.RightButtonReleaseEvent()
elif self._ActiveButton == Qt.MidButton:
self._Iren.MiddleButtonReleaseEvent()
def mouseMoveEvent(self, ev):
self.__saveModifiers = ev.modifiers()
self.__saveButtons = ev.buttons()
self.__saveX = ev.x()
self.__saveY = ev.y()
ctrl, shift = self._GetCtrlShift(ev)
self._setEventInformation(ev.x(), ev.y(),
ctrl, shift, chr(0), 0, None)
self._Iren.MouseMoveEvent()
def keyPressEvent(self, ev):
key, keySym = self._GetKeyCharAndKeySym(ev)
ctrl, shift = self._GetCtrlShift(ev)
self._setEventInformation(self.__saveX, self.__saveY,
ctrl, shift, key, 0, keySym)
self._Iren.KeyPressEvent()
self._Iren.CharEvent()
def keyReleaseEvent(self, ev):
key, keySym = self._GetKeyCharAndKeySym(ev)
ctrl, shift = self._GetCtrlShift(ev)
self._setEventInformation(self.__saveX, self.__saveY,
ctrl, shift, key, 0, keySym)
self._Iren.KeyReleaseEvent()
def wheelEvent(self, ev):
if hasattr(ev, 'delta'):
self.__wheelDelta += ev.delta()
else:
self.__wheelDelta += ev.angleDelta().y()
if self.__wheelDelta >= 120:
self._Iren.MouseWheelForwardEvent()
self.__wheelDelta = 0
elif self.__wheelDelta <= -120:
self._Iren.MouseWheelBackwardEvent()
self.__wheelDelta = 0
def GetRenderWindow(self):
return self._RenderWindow
def Render(self):
self.update()
_keysyms_for_ascii = (
None, None, None, None, None, None, None, None,
None, "Tab", None, None, None, None, None, None,
None, None, None, None, None, None, None, None,
None, None, None, None, None, None, None, None,
"space", "exclam", "quotedbl", "numbersign",
"dollar", "percent", "ampersand", "quoteright",
"parenleft", "parenright", "asterisk", "plus",
"comma", "minus", "period", "slash",
"0", "1", "2", "3", "4", "5", "6", "7",
"8", "9", "colon", "semicolon", "less", "equal", "greater", "question",
"at", "A", "B", "C", "D", "E", "F", "G",
"H", "I", "J", "K", "L", "M", "N", "O",
"P", "Q", "R", "S", "T", "U", "V", "W",
"X", "Y", "Z", "bracketleft",
"backslash", "bracketright", "asciicircum", "underscore",
"quoteleft", "a", "b", "c", "d", "e", "f", "g",
"h", "i", "j", "k", "l", "m", "n", "o",
"p", "q", "r", "s", "t", "u", "v", "w",
"x", "y", "z", "braceleft", "bar", "braceright", "asciitilde", "Delete",
)
_keysyms = {
Qt.Key_Backspace: 'BackSpace',
Qt.Key_Tab: 'Tab',
Qt.Key_Backtab: 'Tab',
# Qt.Key_Clear : 'Clear',
Qt.Key_Return: 'Return',
Qt.Key_Enter: 'Return',
Qt.Key_Shift: 'Shift_L',
Qt.Key_Control: 'Control_L',
Qt.Key_Alt: 'Alt_L',
Qt.Key_Pause: 'Pause',
Qt.Key_CapsLock: 'Caps_Lock',
Qt.Key_Escape: 'Escape',
Qt.Key_Space: 'space',
# Qt.Key_Prior : 'Prior',
# Qt.Key_Next : 'Next',
Qt.Key_End: 'End',
Qt.Key_Home: 'Home',
Qt.Key_Left: 'Left',
Qt.Key_Up: 'Up',
Qt.Key_Right: 'Right',
Qt.Key_Down: 'Down',
Qt.Key_SysReq: 'Snapshot',
Qt.Key_Insert: 'Insert',
Qt.Key_Delete: 'Delete',
Qt.Key_Help: 'Help',
Qt.Key_0: '0',
Qt.Key_1: '1',
Qt.Key_2: '2',
Qt.Key_3: '3',
Qt.Key_4: '4',
Qt.Key_5: '5',
Qt.Key_6: '6',
Qt.Key_7: '7',
Qt.Key_8: '8',
Qt.Key_9: '9',
Qt.Key_A: 'a',
Qt.Key_B: 'b',
Qt.Key_C: 'c',
Qt.Key_D: 'd',
Qt.Key_E: 'e',
Qt.Key_F: 'f',
Qt.Key_G: 'g',
Qt.Key_H: 'h',
Qt.Key_I: 'i',
Qt.Key_J: 'j',
Qt.Key_K: 'k',
Qt.Key_L: 'l',
Qt.Key_M: 'm',
Qt.Key_N: 'n',
Qt.Key_O: 'o',
Qt.Key_P: 'p',
Qt.Key_Q: 'q',
Qt.Key_R: 'r',
Qt.Key_S: 's',
Qt.Key_T: 't',
Qt.Key_U: 'u',
Qt.Key_V: 'v',
Qt.Key_W: 'w',
Qt.Key_X: 'x',
Qt.Key_Y: 'y',
Qt.Key_Z: 'z',
Qt.Key_Asterisk: 'asterisk',
Qt.Key_Plus: 'plus',
Qt.Key_Minus: 'minus',
Qt.Key_Period: 'period',
Qt.Key_Slash: 'slash',
Qt.Key_F1: 'F1',
Qt.Key_F2: 'F2',
Qt.Key_F3: 'F3',
Qt.Key_F4: 'F4',
Qt.Key_F5: 'F5',
Qt.Key_F6: 'F6',
Qt.Key_F7: 'F7',
Qt.Key_F8: 'F8',
Qt.Key_F9: 'F9',
Qt.Key_F10: 'F10',
Qt.Key_F11: 'F11',
Qt.Key_F12: 'F12',
Qt.Key_F13: 'F13',
Qt.Key_F14: 'F14',
Qt.Key_F15: 'F15',
Qt.Key_F16: 'F16',
Qt.Key_F17: 'F17',
Qt.Key_F18: 'F18',
Qt.Key_F19: 'F19',
Qt.Key_F20: 'F20',
Qt.Key_F21: 'F21',
Qt.Key_F22: 'F22',
Qt.Key_F23: 'F23',
Qt.Key_F24: 'F24',
Qt.Key_NumLock: 'Num_Lock',
Qt.Key_ScrollLock: 'Scroll_Lock',
}
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