62 lines
2.0 KiB
Python
62 lines
2.0 KiB
Python
from pyqtgraph.Qt import QtCore, QtGui
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from pyqtgraph.python2_3 import asUnicode
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class CmdInput(QtGui.QLineEdit):
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sigExecuteCmd = QtCore.Signal(object)
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def __init__(self, parent):
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QtGui.QLineEdit.__init__(self, parent)
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self.history = [""]
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self.ptr = 0
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#self.lastCmd = None
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#self.setMultiline(False)
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def keyPressEvent(self, ev):
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#print "press:", ev.key(), QtCore.Qt.Key_Up, QtCore.Qt.Key_Down, QtCore.Qt.Key_Enter
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if ev.key() == QtCore.Qt.Key_Up and self.ptr < len(self.history) - 1:
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self.setHistory(self.ptr+1)
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ev.accept()
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return
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elif ev.key() == QtCore.Qt.Key_Down and self.ptr > 0:
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self.setHistory(self.ptr-1)
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ev.accept()
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return
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elif ev.key() == QtCore.Qt.Key_Return:
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self.execCmd()
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else:
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QtGui.QLineEdit.keyPressEvent(self, ev)
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self.history[0] = asUnicode(self.text())
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def execCmd(self):
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cmd = asUnicode(self.text())
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if len(self.history) == 1 or cmd != self.history[1]:
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self.history.insert(1, cmd)
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#self.lastCmd = cmd
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self.history[0] = ""
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self.setHistory(0)
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self.sigExecuteCmd.emit(cmd)
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def setHistory(self, num):
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self.ptr = num
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self.setText(self.history[self.ptr])
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#def setMultiline(self, m):
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#height = QtGui.QFontMetrics(self.font()).lineSpacing()
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#if m:
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#self.setFixedHeight(height*5)
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#else:
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#self.setFixedHeight(height+15)
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#self.setVerticalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
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#self.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
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#def sizeHint(self):
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#hint = QtGui.QPlainTextEdit.sizeHint(self)
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#height = QtGui.QFontMetrics(self.font()).lineSpacing()
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#hint.setHeight(height)
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#return hint
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