class ImageRenderer(QObject):
def __init__(self, url, image_path):
QObject.__init__(self)
self.url = QUrl(url)
self.image_path = image_path
self.webpage = QWebPage(self)
self.webpage.loadFinished.connect(self.render)
self.webpage.mainFrame().load(self.url)
def render(self, ok):
if ok:
print('Loaded {0}'.format(self.url.toString()))
self.webpage.setViewportSize(
self.webpage.mainFrame().contentsSize())
image = QImage(self.webpage.viewportSize(),
QImage.Format_ARGB32)
painter = QPainter(image)
self.webpage.mainFrame().render(painter)
painter.end()
if image.save(self.image_path):
print('Saved image to {0}'.format(self.image_path))
else:
print('Could not save to {0}'.format(self.image_path))
else:
print('Could not load {0.toString()}'.format(self.url))
QApplication.instance().quit()
class ImageRenderer(QObject):
def __init__(self, url, image_path):
QObject.__init__(self)
self.url = QUrl(url)
self.image_path = image_path
self.webpage = QWebPage(self)
self.webpage.loadFinished.connect(self.render)
self.webpage.mainFrame().load(self.url)
def render(self, ok):
if ok:
print('Loaded {0}'.format(self.url.toString()))
self.webpage.setViewportSize(
self.webpage.mainFrame().contentsSize())
image = QImage(self.webpage.viewportSize(), QImage.Format_ARGB32)
painter = QPainter(image)
self.webpage.mainFrame().render(painter)
painter.end()
if image.save(self.image_path):
print('Saved image to {0}'.format(self.image_path))
else:
print('Could not save to {0}'.format(self.image_path))
else:
print('Could not load {0.toString()}'.format(self.url))
QApplication.instance().quit()
class WebThumbnailer(QObject):
finished = Signal(bool)
def __init__(self, window_width, window_height):
super(WebThumbnailer, self).__init__()
self.ok = None
self.page = QWebPage(self)
self.page.mainFrame().setScrollBarPolicy(
Qt.Horizontal, Qt.ScrollBarAlwaysOff)
self.page.mainFrame().setScrollBarPolicy(
Qt.Vertical, Qt.ScrollBarAlwaysOff)
self.page.loadStarted.connect(self.on_page_started)
self.page.loadFinished.connect(self.on_page_finished)
self.page.networkAccessManager().finished.connect(
self.on_network_finished)
self.page.setViewportSize(QSize(window_width, window_height))
def on_page_started(self):
logging.debug('on_page_started')
self.ok = None
def on_page_finished(self, ok):
logging.debug('on_page_finished: ok=%s', ok)
self.ok = ok
self.finished.emit(ok)
def on_network_finished(self, reply):
logging.debug('on_network_finished: %s', reply.url().toEncoded())
def load(self, url):
self.page.mainFrame().load(url)
def save(self, out, width=None, height=None):
image = self.render()
scaled = self.scale(image, width, height)
scaled.save(out)
logging.debug('imagesize: %s', scaled.size())
def render(self):
image = QImage(self.page.viewportSize(), QImage.Format_RGB32)
painter = QPainter(image)
self.page.mainFrame().render(painter)
painter.end()
return image
def scale(self, image, width=None, height=None):
if width is None and height is None:
scaled = image
elif width is None:
scaled = image.scaledToHeight(height, Qt.SmoothTransformation)
elif height is None:
scaled = image.scaledToWidth(width, Qt.SmoothTransformation)
else:
scaled = image.scaled(width, height,
Qt.KeepAspectRatioByExpanding,
Qt.SmoothTransformation)
scaled = scaled.copy(0, 0, width, height)
return scaled
class InvoiceForm(QDialog, Ui_InvoiceDialog):
def __init__(self, parent=None):
super(InvoiceForm, self).__init__(parent)
self.setupUi(self)
self.progressBar.setHidden(True)
self.invoice = Invoice(self)
self.tableView.setModel(self.invoice)
self.tableView.horizontalHeader().setResizeMode(QHeaderView.Stretch)
self.tableView.setAlternatingRowColors(True)
self.tableView.setSelectionBehavior(QAbstractItemView.SelectRows)
self.updateButton.clicked.connect(self.update_invoices)
self.tableView.selectionModel().selectionChanged.connect(self.invoice_selected)
self.webpage = QWebPage()
self.webpage.loadFinished.connect(self.save_invoice)
self.webpage.networkAccessManager().sslErrors.connect(self.allow_connection)
self.network_access_manager = QNetworkAccessManager()
self.network_access_manager.finished.connect(self.fetched_invoices)
self.network_access_manager.sslErrors.connect(self.allow_connection)
def invoice_selected(self, new, old):
try:
row = self.invoice.invoices[new.indexes()[0].row()]
except IndexError:
return
if row[1].startswith('Invoice'):
self.invoice_filename = os.path.expanduser('~/.blusage/%s.png' % row[1].lower())
if os.path.exists(self.invoice_filename):
self.load_invoice()
else:
usage = self.parentWidget().usage_model
url = '%s%s' % (usage.user_endpoint[:-5], self.invoice.invoices[new.indexes()[0].row()][0])
self.webpage.mainFrame().load(QUrl(url))
self.webpage.mainFrame().setScrollBarPolicy(Qt.Vertical, Qt.ScrollBarAlwaysOff)
self.webpage.mainFrame().setScrollBarPolicy(Qt.Horizontal, Qt.ScrollBarAlwaysOff)
self.webpage.setViewportSize(QSize(800, 600))
self.enable_ui(False)
else:
self.invoiceLabel.setText("""
<center>
<table>
<tr>
<th>Payment #</th>
<td>{number}</td>
</tr>
<tr>
<th>Date</th>
<td>{date}</td>
</tr>
<tr>
<th>Credit</th>
<td>{credit}</td>
</tr>
<tr>
<th>Balance</th>
<td>{balance}</td>
</tr>
</table>
</center>
""".format(number=row[1][8:], date=row[2], credit=row[3], balance=row[5]))
def load_invoice(self):
pixmap = QPixmap(self.invoice_filename)
self.invoiceLabel.setPixmap(pixmap)
def update_invoices(self):
usage = self.parentWidget().usage_model
url = '%s?%s' % (usage.user_endpoint, self.invoice.post_data)
request = QNetworkRequest(QUrl(url))
self.network_access_manager.get(request)
self.enable_ui(False)
def enable_ui(self, value=True):
self.updateButton.setEnabled(value)
self.progressBar.setHidden(value)
self.tableView.setEnabled(value)
def save_invoice(self, ok):
self.enable_ui()
if ok:
frame = self.webpage.mainFrame()
image = QImage(frame.contentsSize(), QImage.Format_ARGB32_Premultiplied)
image.fill(Qt.transparent);
painter = QPainter(image)
painter.setRenderHint(QPainter.Antialiasing, True);
painter.setRenderHint(QPainter.TextAntialiasing, True);
painter.setRenderHint(QPainter.SmoothPixmapTransform, True);
frame.documentElement().render(painter);
painter.end();
image.save(self.invoice_filename)
self.load_invoice()
else:
title = "An error occured"
message = "Could not load invoice." \
+ "\nPlease check your internet connection."
QMessageBox.critical(self, title, message)
def fetched_invoices(self, reply):
self.enable_ui()
if reply.error() == QNetworkReply.NoError:
html = unicode(reply.readAll())
self.invoice.parse(html)
self.invoice.reset()
else:
title = "An error occured"
message = reply.errorString() \
+ ".\nPlease check your internet connection."
QMessageBox.critical(self, title, message)
reply.deleteLater()
def allow_connection(self, reply):
reply.ignoreSslErrors()
