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# /*#########################################################################
#
# The PyMca X-Ray Fluorescence Toolkit
#
# Copyright (c) 2004-2015 European Synchrotron Radiation Facility
#
# This file is part of the PyMca X-ray Fluorescence Toolkit developed at
# the ESRF by the Software group.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
# ###########################################################################*/
__author__ = "T. Vincent - ESRF Data Analysis"
__contact__ = "thomas.vincent@esrf.fr"
__license__ = "MIT"
__copyright__ = "European Synchrotron Radiation Facility, Grenoble, France"
__doc__ = """
Functions to prepare events to be sent to backend callback.
"""
# import ######################################################################
import numpy as np
# signals #####################################################################
def prepareDrawingSignal(event, type_, points, parameters=None):
if parameters is None:
parameters = {}
eventDict = {}
eventDict['event'] = event
eventDict['type'] = type_
points = np.array(points, dtype=np.float32)
points.shape = -1, 2
eventDict['points'] = points
eventDict['xdata'] = points[:, 0]
eventDict['ydata'] = points[:, 1]
if type_ in ('rectangle',):
eventDict['x'] = eventDict['xdata'].min()
eventDict['y'] = eventDict['ydata'].min()
eventDict['width'] = eventDict['xdata'].max() - eventDict['x']
eventDict['height'] = eventDict['ydata'].max() - eventDict['y']
eventDict['parameters'] = parameters.copy()
return eventDict
def prepareMouseSignal(eventType, button, xData, yData, xPixel, yPixel):
assert eventType in ('mouseMoved', 'mouseClicked', 'mouseDoubleClicked')
assert button in (None, 'left', 'right')
return {'event': eventType,
'x': xData,
'y': yData,
'xpixel': xPixel,
'ypixel': yPixel,
'button': button}
def prepareHoverSignal(label, type_, posData, posPixel, draggable, selectable):
return {'event': 'hover',
'label': label,
'type': type_,
'x': posData[0],
'y': posData[1],
'xpixel': posPixel[0],
'ypixel': posPixel[1],
'draggable': draggable,
'selectable': selectable}
def prepareMarkerSignal(eventType, button, label, type_,
draggable, selectable,
posDataMarker,
posPixelCursor=None, posDataCursor=None):
if eventType == 'markerClicked':
assert posPixelCursor is not None
assert posDataCursor is None
posDataCursor = list(posDataMarker)
if hasattr(posDataCursor[0], "__len__"):
posDataCursor[0] = posDataCursor[0][-1]
if hasattr(posDataCursor[1], "__len__"):
posDataCursor[1] = posDataCursor[1][-1]
elif eventType == 'markerMoving':
assert posPixelCursor is not None
assert posDataCursor is not None
elif eventType == 'markerMoved':
assert posPixelCursor is None
assert posDataCursor is None
posDataCursor = posDataMarker
else:
raise NotImplementedError("Unknown event type {0}".format(eventType))
eventDict = {'event': eventType,
'button': button,
'label': label,
'type': type_,
'x': posDataCursor[0],
'y': posDataCursor[1],
'xdata': posDataMarker[0],
'ydata': posDataMarker[1],
'draggable': draggable,
'selectable': selectable}
if eventType in ('markerMoving', 'markerClicked'):
eventDict['xpixel'] = posPixelCursor[0]
eventDict['ypixel'] = posPixelCursor[1]
return eventDict
def prepareImageSignal(button, label, type_, col, row,
x, y, xPixel, yPixel):
return {'event': 'imageClicked',
'button': button,
'label': label,
'type': type_,
'col': col,
'row': row,
'x': x,
'y': y,
'xpixel': xPixel,
'ypixel': yPixel}
def prepareCurveSignal(button, label, type_, xData, yData,
x, y, xPixel, yPixel):
return {'event': 'curveClicked',
'button': button,
'label': label,
'type': type_,
'xdata': xData,
'ydata': yData,
'x': x,
'y': y,
'xpixel': xPixel,
'ypixel': yPixel}
def prepareLimitsChangedSignal(sourceObj, xRange, yRange, y2Range):
return {'event': 'limitsChanged',
'source': id(sourceObj),
'xdata': xRange,
'ydata': yRange,
'y2data': y2Range}
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