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#/*##########################################################################
# Copyright (C) 2004-2019 V.A. Sole, 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__ = "V.A. Sole - ESRF Data Analysis"
__contact__ = "sole@esrf.fr"
__license__ = "MIT"
__copyright__ = "European Synchrotron Radiation Facility, Grenoble, France"
import sys
import logging
from PyMca5.PyMcaGui import PyMcaQt as qt
from .Q4PyMcaPrintPreview import PyMcaPrintPreview as PrintPreview
_logger = logging.getLogger(__name__)
def PyMcaPrintPreview(*var, **kw):
_logger.debug("PyMcaPrintPreview kept for backwards compatibility")
return getSingletonPrintPreview(*var, **kw)
def getSingletonPrintPreview(*var, **kw):
if not hasattr(PrintPreview, "_preview_instance") or \
PrintPreview._preview_instance:
_logger.debug("Instantiating preview instance")
PrintPreview._preview_instance = PrintPreview(modal=0)
return PrintPreview._preview_instance
def resetSingletonPrintPreview():
"""
To be called on Application to get rid of internal reference.
"""
_logger.debug("resetSingletonPrintPreview CALLED")
needed = False
if not hasattr(PrintPreview, "_preview_instance"):
_logger.debug("PrintPreview never instantiated")
return needed
import gc
_logger.debug("_preview_instance before = %s", PrintPreview._preview_instance)
try:
if PrintPreview._preview_instance:
needed = True
PrintPreview._preview_instance = None
gc.collect()
except NameError:
needed = False
_logger.debug("RETURNING = %s", needed)
return needed
if qt.QApplication.instance():
if not hasattr(PrintPreview, "_preview_instance"):
_logger.debug("PrintPreview not there creating it")
PrintPreview._preview_instance = PrintPreview()
else:
_logger.debug("PrintPreview already there = %s",
PrintPreview._preview_instance)
def testPreview():
"""
"""
import sys
import os.path
if len(sys.argv) < 2:
print("give an image file as parameter please.")
sys.exit(1)
if len(sys.argv) > 2:
print("only one parameter please.")
sys.exit(1)
filename = sys.argv[1]
a = qt.QApplication(sys.argv)
p = qt.QPrinter()
p.setOutputFileName(os.path.splitext(filename)[0]+".ps")
p.setColorMode(qt.QPrinter.Color)
w = PyMcaPrintPreview( parent = None, printer = p, name = 'Print Prev',
modal = 0, fl = 0)
w.resize(400,500)
w.addPixmap(qt.QPixmap.fromImage(qt.QImage(filename)))
w.addImage(qt.QImage(filename))
if 0:
w2 = PyMcaPrintPreview( parent = None, printer = p, name = '2Print Prev',
modal = 0, fl = 0)
w.exec_()
w2.resize(100,100)
w2.show()
sys.exit(w2.exec_())
sys.exit(w.exec_())
if __name__ == '__main__':
testPreview()
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