# Copyright (C) 2017 DESY, Christoph Rosemann, Notkestr. 85, D-22607 Hamburg
#
# lavue is an image viewing program for photon science imaging detectors.
# Its usual application is as a live viewer using hidra as data source.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation in version 2
# of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor,
# Boston, MA 02110-1301, USA.
#
# Authors:
# Jan Kotanski <jan.kotanski@desy.de>
#
""" range window widget """
from .qtuic import uic
from pyqtgraph import QtCore
try:
from pyqtgraph import QtWidgets
except Exception:
from pyqtgraph import QtGui as QtWidgets
import os
import logging
_formclass, _baseclass = uic.loadUiType(
os.path.join(os.path.dirname(os.path.abspath(__file__)),
"ui", "RangeWindowGroupBox.ui"))
logger = logging.getLogger("lavue")
[docs]class RangeWindowGroupBox(QtWidgets.QWidget):
"""
Select how an image should be transformed.
"""
#: (:class:`pyqtgraph.QtCore.pyqtSignal`) factor changed signal
factorChanged = QtCore.pyqtSignal()
#: (:class:`pyqtgraph.QtCore.pyqtSignal`) function changed signal
functionChanged = QtCore.pyqtSignal()
#: (:class:`pyqtgraph.QtCore.pyqtSignal`) range window changed signal
rangeWindowChanged = QtCore.pyqtSignal()
def __init__(self, parent=None):
""" constructor
:param parent: parent object
:type parent: :class:`pyqtgraph.QtCore.QObject`
"""
QtWidgets.QWidget.__init__(self, parent)
#: (:class:`Ui_RangeWindowGroupBox') ui_widget object from qtdesigner
self.__ui = _formclass()
self.__ui.setupUi(self)
self.__ui.factorSpinBox.valueChanged.connect(
self._emitFactorChanged)
self.__ui.functionComboBox.currentIndexChanged.connect(
self._emitFunctionChanged)
self.__ui.x1LineEdit.textChanged.connect(self._emitRangeWindowChanged)
self.__ui.y1LineEdit.textChanged.connect(self._emitRangeWindowChanged)
self.__ui.x2LineEdit.textChanged.connect(self._emitRangeWindowChanged)
self.__ui.y2LineEdit.textChanged.connect(self._emitRangeWindowChanged)
@QtCore.pyqtSlot()
def _emitRangeWindowChanged(self):
"""emits rangeWindowChanged
"""
self.rangeWindowChanged.emit()
@QtCore.pyqtSlot()
def _emitFunctionChanged(self):
"""emits functionChanged
"""
self.functionChanged.emit()
@QtCore.pyqtSlot()
def _emitFactorChanged(self):
"""emits factorChanged
"""
self.factorChanged.emit()
[docs] def function(self):
""" provides the reduction function name, i.e. max, min, mean, sum
:returns: function name
:rtype: :obj:`str`
"""
return str(self.__ui.functionComboBox.currentText())
[docs] def setFunction(self, name):
""" sets the reduction function
:param name: function name, i.e. max, min, mean, sum
:type name: :obj:`str`
"""
text = self.__ui.functionComboBox.currentText()
if text != name:
cid = self.__ui.functionComboBox.findText(name)
if cid > -1:
self.__ui.functionComboBox.setCurrentIndex(cid)
else:
# print("Error %s" % name)
logger.warning(
"RangeWindowGroupBox.setFunction: "
"Error in setFunction for %s" % name)
[docs] def factor(self):
""" provides the current resize factor
:returns: resize factor
:rtype: :obj:`int`
"""
return int(self.__ui.factorSpinBox.value())
[docs] def setFactor(self, factor):
""" provides the current resize factor
:param factor: resize factor
:type factor: :obj:`int`
"""
try:
self.__ui.factorSpinBox.setValue(int(factor))
except Exception:
self.__ui.factorSpinBox.setValue(1)
[docs] def rangeWindow(self):
""" provides the range window
:returns: x1, y1, x2, y2 of range window bounds
:rtype: :obj:`list` <:obj:`int`>
"""
try:
x1 = int(self.__ui.x1LineEdit.text())
except Exception:
x1 = None
try:
x2 = int(self.__ui.x2LineEdit.text())
except Exception:
x2 = None
try:
y1 = int(self.__ui.y1LineEdit.text())
except Exception:
y1 = None
try:
y2 = int(self.__ui.y2LineEdit.text())
except Exception:
y2 = None
return [x1, y1, x2, y2]
[docs] def setRangeWindow(self, bounds):
""" provides the range window
:param bounds: range window bounds: x1:x2,y1:y2
:type: :obj:`str`
"""
lims = bounds.replace(":", ",").split(",")
if len(lims) == 4:
try:
int(lims[0].replace("m", "-"))
self.__ui.x1LineEdit.setText(
lims[0].replace("m", "-"))
except Exception:
self.__ui.x1LineEdit.setText("")
try:
int(lims[1].replace("m", "-"))
self.__ui.x2LineEdit.setText(
lims[1].replace("m", "-"))
except Exception:
self.__ui.x2LineEdit.setText("")
try:
int(lims[2].replace("m", "-"))
self.__ui.y1LineEdit.setText(
lims[2].replace("m", "-"))
except Exception:
self.__ui.y1LineEdit.setText("")
try:
int(lims[3].replace("m", "-"))
self.__ui.y2LineEdit.setText(
lims[3].replace("m", "-"))
except Exception:
self.__ui.y2LineEdit.setText("")
[docs] def changeView(self, showrangeWindow=None):
""" show or hide widgets
:param showrangeWindow: widget shown
:type showrangeWindow: :obj:`bool`
"""
if showrangeWindow is not None:
if showrangeWindow:
self.show()
else:
self.hide()