def exec_image_open_dialog(parent, basedir='', app_name=None,
to_grayscale=True, dtype=None):
"""
Executes an image open dialog box (QFileDialog.getOpenFileName)
* parent: parent widget (None means no parent)
* basedir: base directory ('' means current directory)
* app_name (opt.): application name (used as a title for an eventual
error message box in case something goes wrong when saving image)
* to_grayscale (default=True): convert image to grayscale
Returns (filename, data) tuple if dialog is accepted, None otherwise
"""
saved_in, saved_out, saved_err = sys.stdin, sys.stdout, sys.stderr
sys.stdout = None
filename, _filter = getopenfilename(parent, _("Open"), basedir,
io.iohandler.get_filters('load', dtype=dtype))
sys.stdin, sys.stdout, sys.stderr = saved_in, saved_out, saved_err
filename = to_text_string(filename)
try:
data = io.imread(filename, to_grayscale=to_grayscale)
except Exception as msg:
import traceback
traceback.print_exc()
QMessageBox.critical(parent,
_('Error') if app_name is None else app_name,
(_("%s could not be opened:") % osp.basename(filename))+\
"\n"+str(msg))
return
return filename, data
def exec_image_save_dialog(parent, data, template=None,
basedir='', app_name=None):
"""
Executes an image save dialog box (QFileDialog.getSaveFileName)
* parent: parent widget (None means no parent)
* data: image pixel array data
* template: image template (pydicom dataset) for DICOM files
* basedir: base directory ('' means current directory)
* app_name (opt.): application name (used as a title for an eventual
error message box in case something goes wrong when saving image)
Returns filename if dialog is accepted, None otherwise
"""
saved_in, saved_out, saved_err = sys.stdin, sys.stdout, sys.stderr
sys.stdout = None
filename, _filter = getsavefilename(parent, _("Save as"), basedir,
io.iohandler.get_filters('save', dtype=data.dtype, template=template))
sys.stdin, sys.stdout, sys.stderr = saved_in, saved_out, saved_err
if filename:
filename = to_text_string(filename)
kwargs = {}
if osp.splitext(filename)[1].lower() == '.dcm':
kwargs['template'] = template
try:
io.imwrite(filename, data, **kwargs)
return filename
except Exception as msg:
import traceback
traceback.print_exc()
QMessageBox.critical(parent,
_('Error') if app_name is None else app_name,
(_("%s could not be written:") % osp.basename(filename))+\
"\n"+str(msg))
return
def exec_image_open_dialog(parent,
basedir='',
app_name=None,
to_grayscale=True,
dtype=None):
"""
Executes an image open dialog box (QFileDialog.getOpenFileName)
* parent: parent widget (None means no parent)
* basedir: base directory ('' means current directory)
* app_name (opt.): application name (used as a title for an eventual
error message box in case something goes wrong when saving image)
* to_grayscale (default=True): convert image to grayscale
Returns (filename, data) tuple if dialog is accepted, None otherwise
"""
saved_in, saved_out, saved_err = sys.stdin, sys.stdout, sys.stderr
sys.stdout = None
filename, _filter = getopenfilename(
parent, _("Open"), basedir,
io.iohandler.get_filters('load', dtype=dtype))
sys.stdin, sys.stdout, sys.stderr = saved_in, saved_out, saved_err
filename = to_text_string(filename)
try:
data = io.imread(filename, to_grayscale=to_grayscale)
except Exception as msg:
import traceback
traceback.print_exc()
QMessageBox.critical(parent,
_('Error') if app_name is None else app_name,
(_("%s could not be opened:") % osp.basename(filename))+\
"\n"+str(msg))
return
return filename, data
def start_compute(self,
name,
func,
param=None,
suffix=None,
interactive=True):
self.QProxy.emit(SIGNAL("computing"))
if interactive and param is not None:
if interactive == 'text' and not param.text_edit():
return
elif not param.edit():
return
QApplication.setOverrideCursor(QCursor(Qt.WaitCursor))
try:
processing = name
if suffix is not None:
processing += " | " + suffix(param)
result = Measurement()
result.copy_param(self.measurement)
result.set_rawdata(self.apply_func(func, param))
result['processing'] += processing + "\n"
except Exception, msg:
import traceback
traceback.print_exc()
QMessageBox.critical(
None, APP_NAME,
_(u"An error occured:") + "\n%s" % unicode(msg))
raise ComputationError, msg
def exec_image_save_dialog(parent,
data,
template=None,
basedir='',
app_name=None):
"""
Executes an image save dialog box (QFileDialog.getSaveFileName)
* parent: parent widget (None means no parent)
* data: image pixel array data
* template: image template (pydicom dataset) for DICOM files
* basedir: base directory ('' means current directory)
* app_name (opt.): application name (used as a title for an eventual
error message box in case something goes wrong when saving image)
Returns filename if dialog is accepted, None otherwise
"""
saved_in, saved_out, saved_err = sys.stdin, sys.stdout, sys.stderr
sys.stdout = None
filename, _filter = getsavefilename(
parent, _("Save as"), basedir,
io.iohandler.get_filters('save', dtype=data.dtype, template=template))
sys.stdin, sys.stdout, sys.stderr = saved_in, saved_out, saved_err
if filename:
filename = to_text_string(filename)
kwargs = {}
if osp.splitext(filename)[1].lower() == '.dcm':
kwargs['template'] = template
try:
io.imwrite(filename, data, **kwargs)
return filename
except Exception as msg:
import traceback
traceback.print_exc()
QMessageBox.critical(parent,
_('Error') if app_name is None else app_name,
(_("%s could not be written:") % osp.basename(filename))+\
"\n"+str(msg))
return
