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from ost import mol
from PyQt5 import QtCore, QtWidgets, QtGui
class QueryEditorWidget(QtWidgets.QWidget):
def __init__(self, parent=None):
QtWidgets.QWidget.__init__(self, parent)
self.default_font_=QtGui.QTextCharFormat()
self.default_font_.setForeground(QtGui.QBrush(QtGui.QColor(0,0,0)))
self.error_font_=QtGui.QTextCharFormat()
self.error_font_.setForeground(QtGui.QBrush(QtGui.QColor(255,0,0)))
self.selection_edit_=QtWidgets.QTextEdit(self)
self.selection_edit_.setFixedHeight(40)
self.selection_edit_.updateGeometry()
self.status_=QtWidgets.QLabel(" ",self);
self.status_.setWordWrap(True)
self.status_.setMargin(0)
self.status_.setAlignment(QtCore.Qt.AlignRight)
self.status_.setSizePolicy(QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Minimum,
QtWidgets.QSizePolicy.Expanding))
vl=QtWidgets.QVBoxLayout()
vl.addWidget(self.selection_edit_)
self.no_bonds_=QtWidgets.QRadioButton('none')
self.ex_bonds_=QtWidgets.QRadioButton('exclusive')
self.in_bonds_=QtWidgets.QRadioButton('inclusive')
self.in_bonds_.setChecked(True)
self.match_res_=QtWidgets.QCheckBox('match residues')
vl.setContentsMargins(0,0,0,0)
vl.setSpacing(0)
self.setLayout(vl)
vl.addWidget(self.status_)
hl=QtWidgets.QHBoxLayout()
l=QtWidgets.QLabel("bonds:")
hl.addWidget(l)
hl.addSpacing(5)
hl.addWidget(self.no_bonds_)
hl.addWidget(self.ex_bonds_)
hl.addWidget(self.in_bonds_)
hl.addStretch(1)
vl.addLayout(hl)
vl.addWidget(self.match_res_)
self.changing_text_=False;
self.selection_edit_.textChanged.connect(self._StartTimer)
self.timer_=QtCore.QTimer()
self.timer_.timeout.connect(self._UpdateMessage)
def GetQueryFlags(self):
flags=0
if self.no_bonds_.isChecked():
flags|=mol.NO_BONDS
if self.ex_bonds_.isChecked():
flags|=mol.EXCLUSIVE_BONDS
if self.match_res_.isChecked():
flags|=mol.MATCH_RESIDUES
return flags
def GetQuery(self):
return mol.Query(str(self.selection_edit_.toPlainText()))
def GetQueryText(self):
return str(self.selection_edit_.toPlainText())
def SetQueryFlags(self,flags):
self.no_bonds_.setChecked(flags & mol.NO_BONDS)
self.ex_bonds_.setChecked(flags & mol.EXCLUSIVE_BONDS)
self.in_bonds_.setChecked(not (flags & mol.NO_BONDS|mol.EXCLUSIVE_BONDS))
self.match_res_.setChecked(flags & mol.MATCH_RESIDUES)
def SetQuery(self,query):
self.selection_edit_.setText(query)
def _StartTimer(self):
self.timer_.stop()
self.timer_.start(500)
def _UpdateMessage(self):
if self.changing_text_:
return
self.changing_text_ = True
query=self.GetQuery()
cursor=self.selection_edit_.textCursor()
cursor.select(QtGui.QTextCursor.Document)
cursor.setCharFormat(self.default_font_)
if query.IsValid():
self.status_.setText("")
else:
d=query.GetErrorDescription()
self.status_.setText("<font color='red'>%s</font>"%d.msg.strip())
#self.status_.setFixedSize(self.width(),self.status_.height())
cursor.movePosition(QtGui.QTextCursor.Start)
if d.range.Loc<len(query.string):
cursor.movePosition(QtGui.QTextCursor.NextCharacter,
QtGui.QTextCursor.MoveAnchor, d.range.Loc)
cursor.movePosition(QtGui.QTextCursor.NextCharacter,
QtGui.QTextCursor.KeepAnchor, d.range.Length)
cursor.setCharFormat(self.error_font_)
self.changing_text_=False
class QueryDialog(QtWidgets.QDialog):
def __init__(self, title, parent=None):
QtWidgets.QDialog.__init__(self, parent)
l=QtWidgets.QVBoxLayout(self)
self.setWindowTitle(title)
self.editor=QueryEditorWidget(self)
l.addWidget(self.editor)
l.addSpacing(10)
l3=QtWidgets.QHBoxLayout()
ab=QtWidgets.QPushButton('OK')
ab.setDefault(True)
cb=QtWidgets.QPushButton('Cancel')
l3.addStretch(1)
l3.addWidget(cb, 0)
l3.addWidget(ab, 0)
l.addLayout(l3)
cb.clicked.connect(self.reject)
ab.clicked.connect(self.accept)
self.editor.selection_edit_.textChanged.connect(self._CheckNewline)
@property
def query_flags(self):
return self.editor.GetQueryFlags()
@property
def query(self):
return self.editor.GetQueryText()
def event(self, e):
if e.type() == QtCore.QEvent.KeyPress and (e.key () == QtCore.Qt.Key_Return or e.key () == QtCore.Qt.Key_Enter):
self.accept()
return True
else:
return QtWidgets.QDialog.event(self, e)
def _CheckNewline(self):
if self.editor.GetQueryText().endswith("\n"):
self.accept()
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