def __init__(self, pdfpath, parent=None):
QDialog.__init__(self, parent)
self.pdfpath = pdfpath
self.stack = WaitLayout(_('Rendering PDF pages, please wait...'), parent=self)
self.container = self.stack.after
self.container.l = l = QVBoxLayout(self.container)
self.la = la = QLabel(_('Choose a cover from the list of PDF pages below'))
l.addWidget(la)
self.covers = c = QListWidget(self)
l.addWidget(c)
self.item_delegate = CoverDelegate(self)
c.setItemDelegate(self.item_delegate)
c.setIconSize(QSize(120, 160))
c.setSelectionMode(c.SingleSelection)
c.setViewMode(c.IconMode)
c.setUniformItemSizes(True)
c.setResizeMode(c.Adjust)
c.itemDoubleClicked.connect(self.accept, type=Qt.ConnectionType.QueuedConnection)
self.bb = bb = QDialogButtonBox(QDialogButtonBox.StandardButton.Ok|QDialogButtonBox.StandardButton.Cancel)
bb.accepted.connect(self.accept)
bb.rejected.connect(self.reject)
self.more_pages = b = bb.addButton(_('&More pages'), QDialogButtonBox.ButtonRole.ActionRole)
b.clicked.connect(self.start_rendering)
l.addWidget(bb)
self.rendering_done.connect(self.show_pages, type=Qt.ConnectionType.QueuedConnection)
self.first = 1
self.setWindowTitle(_('Choose cover from PDF'))
self.setWindowIcon(file_icon_provider().icon_from_ext('pdf'))
self.resize(QSize(800, 600))
self.tdir = PersistentTemporaryDirectory('_pdf_covers')
self.start_rendering()
def __init__(self, pdfpath, parent=None):
QDialog.__init__(self, parent)
self.pdfpath = pdfpath
self.stack = WaitLayout(_('Rendering PDF pages, please wait...'), parent=self)
self.container = self.stack.after
self.container.l = l = QVBoxLayout(self.container)
self.la = la = QLabel(_('Choose a cover from the list of PDF pages below'))
l.addWidget(la)
self.covers = c = QListWidget(self)
l.addWidget(c)
self.item_delegate = CoverDelegate(self)
c.setItemDelegate(self.item_delegate)
c.setIconSize(QSize(120, 160))
c.setSelectionMode(c.SingleSelection)
c.setViewMode(c.IconMode)
c.setUniformItemSizes(True)
c.setResizeMode(c.Adjust)
c.itemDoubleClicked.connect(self.accept, type=Qt.QueuedConnection)
self.bb = bb = QDialogButtonBox(QDialogButtonBox.Ok|QDialogButtonBox.Cancel)
bb.accepted.connect(self.accept)
bb.rejected.connect(self.reject)
self.more_pages = b = bb.addButton(_('&More pages'), QDialogButtonBox.ActionRole)
b.clicked.connect(self.start_rendering)
l.addWidget(bb)
self.rendering_done.connect(self.show_pages, type=Qt.QueuedConnection)
self.first = 1
self.setWindowTitle(_('Choose cover from PDF'))
self.setWindowIcon(file_icon_provider().icon_from_ext('pdf'))
self.resize(QSize(800, 600))
self.tdir = PersistentTemporaryDirectory('_pdf_covers')
self.start_rendering()
class PDFCovers(QDialog):
'Choose a cover from the first few pages of a PDF'
rendering_done = pyqtSignal()
def __init__(self, pdfpath, parent=None):
QDialog.__init__(self, parent)
self.pdfpath = pdfpath
self.stack = WaitLayout(_('Rendering PDF pages, please wait...'),
parent=self)
self.container = self.stack.after
self.container.l = l = QVBoxLayout(self.container)
self.la = la = QLabel(
_('Choose a cover from the list of PDF pages below'))
l.addWidget(la)
self.covers = c = QListWidget(self)
l.addWidget(c)
self.item_delegate = CoverDelegate(self)
c.setItemDelegate(self.item_delegate)
c.setIconSize(QSize(120, 160))
c.setSelectionMode(QAbstractItemView.SelectionMode.SingleSelection)
c.setViewMode(QListView.ViewMode.IconMode)
c.setUniformItemSizes(True)
c.setResizeMode(QListView.ResizeMode.Adjust)
c.itemDoubleClicked.connect(self.accept,
type=Qt.ConnectionType.QueuedConnection)
self.bb = bb = QDialogButtonBox(
QDialogButtonBox.StandardButton.Ok
| QDialogButtonBox.StandardButton.Cancel)
bb.accepted.connect(self.accept)
bb.rejected.connect(self.reject)
self.more_pages = b = bb.addButton(
_('&More pages'), QDialogButtonBox.ButtonRole.ActionRole)
b.clicked.connect(self.start_rendering)
l.addWidget(bb)
self.rendering_done.connect(self.show_pages,
type=Qt.ConnectionType.QueuedConnection)
self.first = 1
self.setWindowTitle(_('Choose cover from PDF'))
self.setWindowIcon(file_icon_provider().icon_from_ext('pdf'))
self.resize(QSize(800, 600))
self.tdir = PersistentTemporaryDirectory('_pdf_covers')
self.start_rendering()
def start_rendering(self):
self.hide_pages()
self.thread = Thread(target=self.render)
self.thread.daemon = True
self.thread.start()
@property
def cover_path(self):
for item in self.covers.selectedItems():
return str(item.data(Qt.ItemDataRole.UserRole) or '')
if self.covers.count() > 0:
return str(
self.covers.item(0).data(Qt.ItemDataRole.UserRole) or '')
def cleanup(self):
try:
shutil.rmtree(self.tdir)
except OSError:
pass
def render(self):
self.current_tdir = os.path.join(self.tdir, str(self.first))
self.error = None
try:
os.mkdir(self.current_tdir)
page_images(self.pdfpath,
self.current_tdir,
first=self.first,
last=self.first + PAGES_PER_RENDER - 1)
except Exception as e:
if self.covers.count():
pass
else:
self.error = as_unicode(e)
if not sip.isdeleted(self) and self.isVisible():
self.rendering_done.emit()
def hide_pages(self):
self.stack.start()
self.more_pages.setVisible(False)
def show_pages(self):
if self.error is not None:
error_dialog(self,
_('Failed to render'),
_('Could not render this PDF file'),
show=True,
det_msg=self.error)
self.reject()
return
self.stack.stop()
files = glob(os.path.join(self.current_tdir, '*.jpg')) + glob(
os.path.join(self.current_tdir, '*.jpeg'))
if not files and not self.covers.count():
error_dialog(self,
_('Failed to render'),
_('This PDF has no pages'),
show=True)
self.reject()
return
try:
dpr = self.devicePixelRatioF()
except AttributeError:
dpr = self.devicePixelRatio()
for i, f in enumerate(sorted(files)):
p = QPixmap(f).scaled(
self.covers.iconSize() * dpr,
aspectRatioMode=Qt.AspectRatioMode.IgnoreAspectRatio,
transformMode=Qt.TransformationMode.SmoothTransformation)
p.setDevicePixelRatio(dpr)
i = QListWidgetItem(_('page %d') % (self.first + i))
i.setData(Qt.ItemDataRole.DecorationRole, p)
i.setData(Qt.ItemDataRole.UserRole, f)
self.covers.addItem(i)
self.first += len(files)
if len(files) == PAGES_PER_RENDER:
self.more_pages.setVisible(True)
class PDFCovers(QDialog):
'Choose a cover from the first few pages of a PDF'
rendering_done = pyqtSignal()
def __init__(self, pdfpath, parent=None):
QDialog.__init__(self, parent)
self.pdfpath = pdfpath
self.stack = WaitLayout(_('Rendering PDF pages, please wait...'), parent=self)
self.container = self.stack.after
self.container.l = l = QVBoxLayout(self.container)
self.la = la = QLabel(_('Choose a cover from the list of PDF pages below'))
l.addWidget(la)
self.covers = c = QListWidget(self)
l.addWidget(c)
self.item_delegate = CoverDelegate(self)
c.setItemDelegate(self.item_delegate)
c.setIconSize(QSize(120, 160))
c.setSelectionMode(c.SingleSelection)
c.setViewMode(c.IconMode)
c.setUniformItemSizes(True)
c.setResizeMode(c.Adjust)
c.itemDoubleClicked.connect(self.accept, type=Qt.QueuedConnection)
self.bb = bb = QDialogButtonBox(QDialogButtonBox.Ok|QDialogButtonBox.Cancel)
bb.accepted.connect(self.accept)
bb.rejected.connect(self.reject)
self.more_pages = b = bb.addButton(_('&More pages'), QDialogButtonBox.ActionRole)
b.clicked.connect(self.start_rendering)
l.addWidget(bb)
self.rendering_done.connect(self.show_pages, type=Qt.QueuedConnection)
self.first = 1
self.setWindowTitle(_('Choose cover from PDF'))
self.setWindowIcon(file_icon_provider().icon_from_ext('pdf'))
self.resize(QSize(800, 600))
self.tdir = PersistentTemporaryDirectory('_pdf_covers')
self.start_rendering()
def start_rendering(self):
self.hide_pages()
self.thread = Thread(target=self.render)
self.thread.daemon = True
self.thread.start()
@property
def cover_path(self):
for item in self.covers.selectedItems():
return unicode(item.data(Qt.UserRole) or '')
if self.covers.count() > 0:
return unicode(self.covers.item(0).data(Qt.UserRole) or '')
def cleanup(self):
try:
shutil.rmtree(self.tdir)
except EnvironmentError:
pass
def render(self):
self.current_tdir = os.path.join(self.tdir, str(self.first))
self.error = None
try:
os.mkdir(self.current_tdir)
page_images(self.pdfpath, self.current_tdir, first=self.first, last=self.first + PAGES_PER_RENDER - 1)
except Exception as e:
if self.covers.count():
pass
else:
self.error = as_unicode(e)
if not sip.isdeleted(self) and self.isVisible():
self.rendering_done.emit()
def hide_pages(self):
self.stack.start()
self.more_pages.setVisible(False)
def show_pages(self):
if self.error is not None:
error_dialog(self, _('Failed to render'),
_('Could not render this PDF file'), show=True, det_msg=self.error)
self.reject()
return
self.stack.stop()
files = glob(os.path.join(self.current_tdir, '*.jpg')) + glob(os.path.join(self.current_tdir, '*.jpeg'))
if not files and not self.covers.count():
error_dialog(self, _('Failed to render'),
_('This PDF has no pages'), show=True)
self.reject()
return
try:
dpr = self.devicePixelRatioF()
except AttributeError:
dpr = self.devicePixelRatio()
for i, f in enumerate(sorted(files)):
p = QPixmap(f).scaled(self.covers.iconSize()*dpr, aspectRatioMode=Qt.IgnoreAspectRatio, transformMode=Qt.SmoothTransformation)
p.setDevicePixelRatio(dpr)
i = QListWidgetItem(_('page %d') % (self.first + i))
i.setData(Qt.DecorationRole, p)
i.setData(Qt.UserRole, f)
self.covers.addItem(i)
self.first += len(files)
if len(files) == PAGES_PER_RENDER:
self.more_pages.setVisible(True)