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artiq
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browser: handle only known errors, cleanup

This commit is contained in:
Robert Jördens 2016-04-06 15:45:13 +08:00
parent 506b5ec4b0
commit 762e0400c0
1 changed files with 32 additions and 14 deletions
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46
artiq/browser/results.py
View File

@ -1,4 +1,5 @@
import logging
import threading
import h5py
from PyQt5 import QtCore, QtWidgets, QtGui
@ -6,17 +7,26 @@ from PyQt5 import QtCore, QtWidgets, QtGui
logger = logging.getLogger(__name__)
class ResultError(Exception):
pass
class ResultIconProvider(QtWidgets.QFileIconProvider):
def icon(self, info):
if not (info.isFile() and info.isReadable() and info.suffix() == "h5"):
return QtWidgets.QFileIconProvider.icon(self, info)
try:
if not (info.isFile() and info.isReadable() and
info.suffix() == "h5"):
raise ResultError
with h5py.File(info.filePath(), "r") as f:
if "thumbnail" not in f:
raise ResultError
d = f["thumbnail"]
if "extension" not in d.attrs:
raise ResultError
img = QtGui.QImage.fromData(d.value, d.attrs["extension"])
pix = QtGui.QPixmap.fromImage(img)
return QtGui.QIcon(pix)
except:
except ResultError:
return QtWidgets.QFileIconProvider.icon(self, info)
@ -30,15 +40,16 @@ class ResultsBrowser(QtWidgets.QSplitter):
self.rt_model.setRootPath(QtCore.QDir.currentPath())
self.rt_model.setNameFilters(["*.h5"])
self.rt_model.setNameFilterDisables(False)
self.rt_model.setIconProvider(ResultIconProvider())
self.icon_provider = ResultIconProvider()
self.rt_model.setIconProvider(self.icon_provider)
self.rt = QtWidgets.QTreeView()
self.rt.setModel(self.rt_model)
self.rt.setRootIndex(self.rt_model.index(QtCore.QDir.currentPath()))
self.rt.setSelectionBehavior(QtWidgets.QAbstractItemView.SelectRows)
self.rt.setSelectionMode(QtWidgets.QAbstractItemView.SingleSelection)
self.rt.selectionModel().selectionChanged.connect(
self.selection_changed)
self.rt.selectionModel().currentChanged.connect(
self.current_changed)
self.rt.setRootIsDecorated(False)
self.addWidget(self.rt)
@ -49,6 +60,8 @@ class ResultsBrowser(QtWidgets.QSplitter):
self.rl.setRootIndex(self.rt.rootIndex())
l = QtGui.QFontMetrics(self.font()).lineSpacing()
self.rl.setIconSize(QtCore.QSize(20*l, 20*l))
self.rl.setWrapping(True)
self.rl.setFlow(QtWidgets.QListView.LeftToRight)
self.addWidget(self.rl)
def showEvent(self, ev):
@ -60,20 +73,25 @@ class ResultsBrowser(QtWidgets.QSplitter):
self.rt.hideColumn(3)
self.rt.scrollTo(self.rt.selectionModel().currentIndex())
def selection_changed(self, selected, deselected):
indexes = selected.indexes()
if not indexes:
return
path = self.rt_model.filePath(indexes[0])
logger.info("opening %s", path)
def cleanup(self):
pass
def current_changed(self, current, previous):
info = self.rt_model.fileInfo(current)
logger.info("opening %s", info.filePath())
try:
with h5py.File(path, "r") as f:
if not (info.isFile() and info.isReadable() and
info.suffix() == "h5"):
raise ResultError
with h5py.File(info.filePath(), "r") as f:
rd = {}
if "datasets" not in f:
raise ResultError
group = f["datasets"]
for k in group:
rd[k] = True, group[k].value
self.datasets.init(rd)
except:
except ResultError:
pass
def select(self, path):