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author | Picca Frédéric-Emmanuel <picca@synchrotron-soleil.fr> | 2019-05-28 08:16:16 +0200 |
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committer | Picca Frédéric-Emmanuel <picca@synchrotron-soleil.fr> | 2019-05-28 08:16:16 +0200 |
commit | a763e5d1b3921b3194f3d4e94ab9de3fbe08bbdd (patch) | |
tree | 45d462ed36a5522e9f3b9fde6c4ec4918c2ae8e3 /examples/dropZones.py | |
parent | cebdc9244c019224846cb8d2668080fe386a6adc (diff) |
New upstream version 0.10.1+dfsg
Diffstat (limited to 'examples/dropZones.py')
-rw-r--r-- | examples/dropZones.py | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/examples/dropZones.py b/examples/dropZones.py new file mode 100644 index 0000000..d0d16b5 --- /dev/null +++ b/examples/dropZones.py @@ -0,0 +1,134 @@ +#!/usr/bin/env python +# coding: utf-8 +# /*########################################################################## +# +# Copyright (c) 2016-2018 European Synchrotron Radiation Facility +# +# 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. +# +# ###########################################################################*/ +""" +Example of drop zone supporting application/x-silx-uri +""" + +from __future__ import absolute_import + +__authors__ = ["V. Valls"] +__license__ = "MIT" +__date__ = "25/01/2019" + +import logging +import silx.io +from silx.gui import qt +from silx.gui.plot.PlotWidget import PlotWidget + +_logger = logging.getLogger(__name__) +logging.basicConfig(level=logging.DEBUG) + + +class DropPlotWidget(PlotWidget): + + def __init__(self, parent=None, backend=None): + PlotWidget.__init__(self, parent=parent, backend=backend) + self.setAcceptDrops(True) + + def dragEnterEvent(self, event): + if event.mimeData().hasFormat("application/x-silx-uri"): + event.acceptProposedAction() + + def dropEvent(self, event): + byteString = event.mimeData().data("application/x-silx-uri") + silxUrl = byteString.data().decode("utf-8") + with silx.io.open(silxUrl) as h5: + if silx.io.is_dataset(h5): + dataset = h5[...] + else: + _logger.error("Unsupported URI") + dataset = None + + if dataset is not None: + if dataset.ndim == 1: + self.clear() + self.addCurve(y=dataset, x=range(dataset.size)) + event.acceptProposedAction() + elif dataset.ndim == 2: + self.clear() + self.addImage(data=dataset) + event.acceptProposedAction() + else: + _logger.error("Unsupported dataset") + + +class DropLabel(qt.QLabel): + + def __init__(self, parent=None, backend=None): + qt.QLabel.__init__(self) + self.setAcceptDrops(True) + self.setText("Drop something here") + + def dragEnterEvent(self, event): + if event.mimeData().hasFormat("application/x-silx-uri"): + event.acceptProposedAction() + + def dropEvent(self, event): + byteString = event.mimeData().data("application/x-silx-uri") + silxUrl = byteString.data().decode("utf-8") + url = silx.io.url.DataUrl(silxUrl) + self.setText(url.path()) + + toolTipTemplate = ("<html><ul>" + "<li><b>file_path</b>: {file_path}</li>" + "<li><b>data_path</b>: {data_path}</li>" + "<li><b>data_slice</b>: {data_slice}</li>" + "<li><b>scheme</b>: {scheme}</li>" + "</html>" + "</ul></html>" + ) + + toolTip = toolTipTemplate.format( + file_path=url.file_path(), + data_path=url.data_path(), + data_slice=url.data_slice(), + scheme=url.scheme()) + + self.setToolTip(toolTip) + event.acceptProposedAction() + + +class DropExample(qt.QMainWindow): + + def __init__(self, parent=None): + super(DropExample, self).__init__(parent) + centralWidget = qt.QWidget(self) + layout = qt.QVBoxLayout() + centralWidget.setLayout(layout) + layout.addWidget(DropPlotWidget(parent=self)) + layout.addWidget(DropLabel(parent=self)) + self.setCentralWidget(centralWidget) + + +def main(): + app = qt.QApplication([]) + example = DropExample() + example.show() + app.exec_() + + +if __name__ == "__main__": + main() |