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'''
Module for translating Qt key codes to PyMOL key and "special" codes
'''
from __future__ import absolute_import
from pymol.Qt import QtCore
Qt = QtCore.Qt
DEBUG = False
keyMap = {
Qt.Key_Escape: 27,
Qt.Key_Tab: 9,
Qt.Key_Backspace: 8,
Qt.Key_Return: 13,
Qt.Key_Enter: 13,
Qt.Key_Delete: 127,
}
specialMap = {
Qt.Key_Left: 100,
Qt.Key_Up: 101,
Qt.Key_Right: 102,
Qt.Key_Down: 103,
Qt.Key_PageUp: 104,
Qt.Key_PageDown: 105,
Qt.Key_Home: 106,
Qt.Key_End: 107,
Qt.Key_Insert: 108,
Qt.Key_F1: 1,
Qt.Key_F2: 2,
Qt.Key_F3: 3,
Qt.Key_F4: 4,
Qt.Key_F5: 5,
Qt.Key_F6: 6,
Qt.Key_F7: 7,
Qt.Key_F8: 8,
Qt.Key_F9: 9,
Qt.Key_F10: 10,
Qt.Key_F11: 11,
Qt.Key_F12: 12,
}
def get_modifiers(ev):
'''Get modifers from event and translate into PyMOL modifier mask'''
pymolmod = 0
qtmodifiers = ev.modifiers()
for mask, qtm in [
(0x1, Qt.ShiftModifier),
(0x2, Qt.MetaModifier), # CTRL on Mac
(0x2, Qt.ControlModifier),
(0x4, Qt.AltModifier)
]:
if qtmodifiers & qtm:
pymolmod |= mask
return pymolmod
def keyPressEventToPyMOLButtonArgs(ev):
# translate modifier mask
pymolmod = get_modifiers(ev)
# Qt::Key_*
key = ev.key()
if key in specialMap:
k = specialMap[key]
# PyMOL_Special
state = -2
else:
# PyMOL_Key
state = -1
# doesn't work on Mac: k = keyMap.get(key, ev.nativeVirtualKey())
k = keyMap.get(key, -1)
if k == -1:
text = ev.text()
if text:
k = ord(text)
# CTRL-<key>
if k == -1 and (pymolmod & 0x2):
k = key - 64
# ALT-<key>
if k != -1 and (pymolmod & 0x4):
k = key
if k > 255 or k < 0:
if DEBUG:
print('DEBUG: skipped: 0x%x 0x%x' % (key, k))
return
return (k, state, 0, 0, pymolmod)
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