class ImagePreviewDialog(PreviewDialog):
def _beforePreview(self):
self.dim = 256
self.previewLabel = ''
def _createPreview(self, frame):
""" Should be implemented by subclasses to
create the items preview.
"""
from pyworkflow.gui.matplotlib_image import ImagePreview
self.preview = ImagePreview(frame, self.dim, label=self.previewLabel)
self.preview.grid(row=0, column=0)
def _itemSelected(self, obj):
index = obj.getIndex()
filename = emlib.image.ImageHandler.fixXmippVolumeFileName(obj)
if index:
filename = "%03d@%s" % (index, filename)
self.image = emlib.image.ImageHandler()._img
try:
self.image.readPreview(filename, self.dim)
if filename.endswith('.psd'):
self.image.convertPSD()
self.Z = self.image.getData()
except Exception as e:
from pyworkflow.gui.matplotlib_image import getPngData
self.Z = getPngData(pw.findResource('no-image.gif'))
dialog.showError("Input particles",
"Error reading image <%s>" % filename, self)
self.preview.updateData(self.Z)
