simple otio viewer (#52)

* simple otio viewer

* - maintains namespaces when importing
- uses .format in favor of % for string formatting
- queries adapter manifest for available file extensions

* Moves otio view widget into its own library

* make otioview executable

bin/otioview.py

@@ -0,0 +1,115 @@
+#!/usr/bin/env python2.7
+
+import os
+import sys
+import argparse
+import itertools
+from PySide import QtGui
+
+import opentimelineio as otio
+import opentimelineioViewWidget as otioViewWidget
+
+__doc__ = """ Simple otio viewer """
+
+
+def _parsed_args():
+    parser = argparse.ArgumentParser(
+        description=__doc__,
+        formatter_class=argparse.ArgumentDefaultsHelpFormatter
+    )
+    parser.add_argument(
+        '-i',
+        '--input',
+        type=str,
+        required=False,
+        help='path to input file',
+    )
+
+    return parser.parse_args()
+
+
+class Main(QtGui.QMainWindow):
+
+    def __init__(self, *args, **kwargs):
+        super(Main, self).__init__(*args, **kwargs)
+
+        self._current_file = None
+
+        # window options
+        self.setWindowTitle('OTIO viewer')
+        self.resize(900, 500)
+
+        # widgets
+        self.timeline = otioViewWidget.timeline.Timeline(parent=self)
+        self.details = otioViewWidget.details.Details(parent=self)
+
+        # layout
+        widg = QtGui.QWidget(parent=self)
+        layout = QtGui.QVBoxLayout()
+
+        self.setCentralWidget(widg)
+        widg.setLayout(layout)
+
+        layout.addWidget(self.details)
+        layout.addWidget(self.timeline)
+
+        # menu
+        menubar = self.menuBar()
+
+        file_load = QtGui.QAction('load...', menubar)
+        file_load.triggered.connect(self._file_load)
+
+        file_menu = menubar.addMenu('file')
+        file_menu.addAction(file_load)
+
+        # signals
+        self.timeline.selection_changed.connect(self.details.set_item)
+
+    def _file_load(self):
+        start_folder = None
+        if self._current_file is not None:
+            start_folder = os.path.dirname(self._current_file)
+
+        extensions = set(
+            itertools.chain.from_iterable(
+                adp.suffixes for adp in otio.adapters.MANIFEST.adapters
+            )
+        )
+
+        extensions_string = ' '.join(
+            ('*.{ext}'.format(ext=x) for x in extensions)
+        )
+
+        path = str(
+            QtGui.QFileDialog.getOpenFileName(
+                self,
+                'load otio',
+                start_folder,
+                'Otio ({extensions})'.format(extensions=extensions_string)
+            )[0]
+        )
+
+        if path:
+            self.load(path)
+
+    def load(self, path):
+        self._current_file = path
+        self.setWindowTitle('OTIO viewer - ' + path)
+        self.details.set_item(None)
+        self.timeline.set_timeline(otio.adapters.read_from_file(path))
+
+
+def main():
+    args = _parsed_args()
+
+    application = QtGui.QApplication(sys.argv)
+    window = Main()
+
+    if args.input is not None:
+        window.load(args.input)
+
+    window.show()
+    application.exec_()
+
+if __name__ == '__main__':
+    main()

opentimelineioViewWidget/__init__.py

@@ -0,0 +1,2 @@
+from . import details
+from . import timeline

opentimelineioViewWidget/details.py

@@ -0,0 +1,14 @@
+from PySide import QtGui
+
+
+class Details(QtGui.QTextEdit):
+
+    def __init__(self, *args, **kwargs):
+        super(Details, self).__init__(*args, **kwargs)
+        self.setFixedHeight(100)
+
+    def set_item(self, item):
+        if item is None:
+            self.setPlainText('')
+        else:
+            self.setPlainText(str(item))