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gui2 gets nice error dialogs.

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This commit is contained in:
Kovid Goyal 2007-07-20 06:03:01 +00:00
parent 0daf6d3588
commit 79391a5f57
5 changed files with 53 additions and 48 deletions
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3
src/libprs500/devices/interface.py
View File

@ -111,6 +111,9 @@ class Device(object):
'''
Upload a list of books to the device. If a file already
exists on the device, it should be replaced.
This method should raise a L{FreeSpaceError} if there is not enough
free space on the device. The text of the FreeSpaceError must contain the
word "card" if C{on_card} is True otherwise it must contain the word "memory".
@param files: A list of paths and/or file-like objects.
@param names: A list of file names that the books should have
once uploaded to the device. len(names) == len(files)

31
src/libprs500/devices/prs500/driver.py
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@ -830,23 +830,24 @@ class PRS500(Device):
def upload_books(self, files, names, on_card=False, end_session=True):
card = self.card(end_session=False)
prefix = card + '/' if on_card else '/Data/media/books/'
paths, ctimes, sizes = [], [], []
paths, ctimes = [], []
names = iter(names)
for file in files:
infile = file if hasattr(file, 'read') else open(file, 'rb')
infile.seek(0, 2)
size = infile.tell()
sizes.append(size)
infiles = [file if hasattr(file, 'read') else open(file, 'rb') for file in files]
for f in infiles: f.seek(0, 2)
sizes = [f.tell() for f in infiles]
size = sum(sizes)
space = self.free_space(end_session=False)
mspace = space[0]
cspace = space[1] if space[1] >= space[2] else space[2]
if on_card and size > cspace - 1024*1024:
raise FreeSpaceError("There is insufficient free space "+\
"on the storage card")
if not on_card and size > mspace - 2*1024*1024:
raise FreeSpaceError("There is insufficient free space " +\
"in main memory")
for infile in infiles:
infile.seek(0)
space = self.free_space(end_session=False)
mspace = space[0]
cspace = space[1] if space[1] >= space[2] else space[2]
if on_card and size > cspace - 1024*1024:
raise FreeSpaceError("There is insufficient free space "+\
"on the storage card")
if not on_card and size > mspace - 1024*1024:
raise FreeSpaceError("There is insufficient free space " +\
"in main memory")
name = names.next()
paths.append(prefix+name)
self.put_file(infile, paths[-1], replace_file=True, end_session=False)

34
src/libprs500/gui2/__init__.py
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@ -15,7 +15,7 @@
""" The GUI for libprs500. """
import sys, os, re, StringIO, traceback
from PyQt4.QtCore import QVariant, QSettings
from PyQt4.QtGui import QFileDialog
from PyQt4.QtGui import QFileDialog, QMessageBox, QPixmap
from libprs500 import __appname__ as APP_TITLE
from libprs500 import __author__
NONE = QVariant() #: Null value to return from the data function of item models
@ -25,29 +25,19 @@ error_dialog = None
def extension(path):
return os.path.splitext(path)[1][1:].lower()
def installErrorHandler(dialog):
''' Create the error dialog for unhandled exceptions'''
global error_dialog
error_dialog = dialog
error_dialog.resize(600, 400)
error_dialog.setWindowTitle(APP_TITLE + " - Error")
error_dialog.setModal(True)
def warning_dialog(parent, title, msg):
d = QMessageBox(QMessageBox.Warning, 'WARNING: '+title, msg, QMessageBox.Ok,
parent)
d.setIconPixmap(QPixmap(':/images/dialog_warning.svg'))
return d
def error_dialog(parent, title, msg):
d = QMessageBox(QMessageBox.Critical, 'ERROR: '+title, msg, QMessageBox.Ok,
parent)
d.setIconPixmap(QPixmap(':/images/dialog_error.svg'))
return d
def _Warning(msg, e):
print >> sys.stderr, msg
if e:
traceback.print_exc(e)
def Error(msg, e):
if error_dialog:
if e:
msg += "<br>" + traceback.format_exc(e)
msg = re.sub("Traceback", "<b>Traceback</b>", msg)
msg = re.sub(r"\n", "<br>", msg)
error_dialog.showMessage(msg)
error_dialog.show()
def human_readable(size):
""" Convert a size in bytes into a human readable form """
if size < 1024:

2
src/libprs500/gui2/images.qrc
View File

@ -2,6 +2,8 @@
<qresource prefix="/" >
<file>images/book.svg</file>
<file>images/clear_left.svg</file>
<file>images/dialog_error.svg</file>
<file>images/dialog_warning.svg</file>
<file>images/edit_input.svg</file>
<file>images/jobs-animated.mng</file>
<file>images/jobs.svg</file>

31
src/libprs500/gui2/main.py
View File

@ -12,18 +12,18 @@
## You should have received a copy of the GNU General Public License along
## with this program; if not, write to the Free Software Foundation, Inc.,
## 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.Warning
from libprs500.devices.interface import Device
from libprs500 import __appname__
import os, tempfile, sys
from PyQt4.QtCore import Qt, SIGNAL, QObject, QCoreApplication, \
QSettings, QVariant, QSize, QThread, QBuffer, QByteArray
from PyQt4.QtGui import QErrorMessage, QPixmap, QColor, QPainter, QMenu, QIcon
from PyQt4.QtGui import QPixmap, QColor, QPainter, QMenu, QIcon
from PyQt4.QtSvg import QSvgRenderer
from libprs500 import __version__ as VERSION
from libprs500 import __version__, __appname__
from libprs500.ebooks.metadata.meta import get_metadata
from libprs500.gui2 import APP_TITLE, installErrorHandler, choose_files
from libprs500.devices.errors import FreeSpaceError
from libprs500.devices.interface import Device
from libprs500.gui2 import APP_TITLE, warning_dialog, choose_files, error_dialog
from libprs500.gui2.main_ui import Ui_MainWindow
from libprs500.gui2.device import DeviceDetector, DeviceManager
from libprs500.gui2.status import StatusBar
@ -60,7 +60,7 @@ class Main(QObject, Ui_MainWindow):
self.location_selected)
####################### Vanity ########################
self.vanity_template = self.vanity.text().arg(VERSION)
self.vanity_template = self.vanity.text().arg(__version__)
self.vanity.setText(self.vanity_template.arg(' '))
####################### Status Bar #####################
@ -238,7 +238,15 @@ class Main(QObject, Ui_MainWindow):
'''
metadata = self.upload_memory.pop(id)
if exception:
self.job_exception(id, exception, formatted_traceback)
if isinstance(exception, FreeSpaceError):
where = 'in main memory.' if 'memory' in str(exception) else 'on the storage card.'
titles = '\n'.join(['<li>'+mi['title']+'</li>' for mi in metadata])
d = error_dialog(self.window, 'No space on device',
'<p>Cannot upload books to device there is no more free space available '+where+
'</p><ul>%s</ul>'%(titles,))
d.exec_()
else:
self.job_exception(id, exception, formatted_traceback)
return
self.device_manager.add_books_to_metadata(result, metadata, self.booklists())
@ -343,15 +351,17 @@ class Main(QObject, Ui_MainWindow):
mi = metadata.next()
id = ids.next()
if f is None:
bad.append(mi)
bad.append(mi['title'])
else:
good.append(mi)
gf.append(f)
names.append('%s_%d%s'%(__appname__, id, os.path.splitext(f.name)[1]))
self.upload_books(gf, names, good, on_card)
raise Exception, str(bad)
if bad:
bad = '\n'.join('<li>%s</li>'%(i,) for i in bad)
d = warning_dialog(self.window, 'No suitable formats', 'Could not upload the following books to the device, as no suitable formats were found:<br><ul>%s</ul>'%(bad,))
d.exec_()
############################################################################
@ -411,7 +421,6 @@ def main():
#return 0
window = QMainWindow()
window.setWindowTitle(APP_TITLE)
installErrorHandler(QErrorMessage(window))
QCoreApplication.setOrganizationName("KovidsBrain")
QCoreApplication.setApplicationName(APP_TITLE)
main = Main(window)