PyBitmessage-2021-04-27/src/bitmessageqt/messagecompose.py

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"""
Message editor with a wheel zoom functionality
"""
# pylint: disable=bad-continuation
from PyQt4 import QtCore, QtGui
class MessageCompose(QtGui.QTextEdit):
"""Editor class with wheel zoom functionality"""
def __init__(self, parent=0):
super(MessageCompose, self).__init__(parent)
self.setAcceptRichText(False)
self.defaultFontPointSize = self.currentFont().pointSize()
def wheelEvent(self, event):
"""Mouse wheel scroll event handler"""
if (
QtGui.QApplication.queryKeyboardModifiers() & QtCore.Qt.ControlModifier
) == QtCore.Qt.ControlModifier and event.orientation() == QtCore.Qt.Vertical:
if event.delta() > 0:
self.zoomIn(1)
else:
self.zoomOut(1)
zoom = self.currentFont().pointSize() * 100 / self.defaultFontPointSize
QtGui.QApplication.activeWindow().statusBar().showMessage(
QtGui.QApplication.translate("MainWindow", "Zoom level %1%").arg(
str(zoom)
)
)
else:
# in QTextEdit, super does not zoom, only scroll
super(MessageCompose, self).wheelEvent(event)
def reset(self):
"""Clear the edit content"""
self.setText('')