/usr/share/libavogadro/engineScripts/wireframe.py is in python-avogadro 1.0.3-10.1+b2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 | from PyQt4.Qt import *
import Avogadro
class Engine(QObject):
# declare the changed() signal
__pyqtSignals__ = ("changed()",)
# constructor
def __init__(self):
QObject.__init__(self)
self.widget = None
self.width = 1
def name(self):
return "Python Wireframe Engine"
def flags(self):
return Avogadro.EngineFlags.NoFlags
# slot
@pyqtSignature("int")
def sliderChanged(self, value):
self.width = value
self.emit(SIGNAL("changed()"))
def settingsWidget(self):
self.widget = QWidget()
layout = QVBoxLayout(self.widget)
self.widget.setLayout(layout)
label = QLabel("Wireframe width:", self.widget)
slider = QSlider(Qt.Horizontal, self.widget)
slider.setMinimum(1)
slider.setMaximum(5)
slider.setValue(self.width)
layout.addWidget(label)
layout.addWidget(slider)
layout.addStretch()
QObject.connect(slider, SIGNAL("valueChanged(int)"), self, SLOT("sliderChanged(int)"))
return self.widget
def renderOpaque(self, pd):
# Painter
painter = pd.painter
# Molecule
molecule = pd.molecule
# Color
color = pd.colorMap
for bond in molecule.bonds:
beginAtom = molecule.atomById(bond.beginAtomId)
endAtom = molecule.atomById(bond.endAtomId)
delta = beginAtom.pos - endAtom.pos
center = (beginAtom.pos + endAtom.pos) / 2
color.setFromPrimitive(beginAtom)
painter.setColor(color)
painter.drawLine(beginAtom.pos, center, self.width)
color.setFromPrimitive(endAtom)
painter.setColor(color)
painter.drawLine(endAtom.pos, center, self.width)
def readSettings(self, settings):
# As opposed to C++, in PyQt4 toInt() returns a tuple,
# converted value is the first element
self.width = settings.value("width", 1).toInt()[0]
def writeSettings(self, settings):
settings.setValue("width", self.width)
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