class Dialog(QtWidgets.QDialog):
_layout = None
buttonBox = None
okButtonText = None
cancelButtonText = None
okButton = None
cancelButton = None
_tab = None
def __init__(self, title=None, f=None, desc=None):
# FIXME: f no lo uso , es qt.windowsflg
super(Dialog, self).__init__()
if title:
self.setWindowTitle(str(title))
self.setWindowModality(QtCore.Qt.ApplicationModal)
self._layout = QtWidgets.QVBoxLayout()
self.setLayout(self._layout)
self.buttonBox = QtWidgets.QDialogButtonBox()
self.okButton = QtWidgets.QPushButton("&Aceptar")
self.cancelButton = QtWidgets.QPushButton("&Cancelar")
self.buttonBox.addButton(
self.okButton, QtWidgets.QDialogButtonBox.AcceptRole)
self.buttonBox.addButton(
self.cancelButton, QtWidgets.QDialogButtonBox.RejectRole)
self.okButton.clicked.connect(self.accept)
self.cancelButton.clicked.connect(self.reject)
from PyQt5.Qt import QTabWidget
self._tab = QTabWidget()
self._tab.hide()
self._layout.addWidget(self._tab)
self.oKButtonText = None
self.cancelButtonText = None
def add(self, _object):
self._layout.addWidget(_object)
def exec_(self):
if self.okButtonText:
self.okButton.setText(str(self.okButtonText))
if (self.cancelButtonText):
self.cancelButton.setText(str(self.cancelButtonText))
self._layout.addWidget(self.buttonBox)
return super(Dialog, self).exec_()
def newTab(self, name):
if self._tab.isHidden():
self._tab.show()
self._tab.addTab(QtWidgets.QWidget(), str(name))
def __getattr__(self, name):
if name == "caption":
name = self.setWindowTitle
return getattr(super(Dialog, self), name)
class Dialog(QtWidgets.QDialog):
_layout = None
buttonBox = None
okButtonText = None
cancelButtonText = None
okButton = None
cancelButton = None
_tab = None
def __init__(self, title=None, f=None, desc=None):
# FIXME: f no lo uso , es qt.windowsflg
super(Dialog, self).__init__()
if title:
self.setWindowTitle(str(title))
self.setWindowModality(QtCore.Qt.ApplicationModal)
self._layout = QtWidgets.QVBoxLayout()
self.setLayout(self._layout)
self.buttonBox = QtWidgets.QDialogButtonBox()
self.okButton = QtWidgets.QPushButton("&Aceptar")
self.cancelButton = QtWidgets.QPushButton("&Cancelar")
self.buttonBox.addButton(self.okButton,
QtWidgets.QDialogButtonBox.AcceptRole)
self.buttonBox.addButton(self.cancelButton,
QtWidgets.QDialogButtonBox.RejectRole)
self.okButton.clicked.connect(self.accept)
self.cancelButton.clicked.connect(self.reject)
self._tab = QTabWidget()
self._tab.hide()
self._layout.addWidget(self._tab)
self.oKButtonText = None
self.cancelButtonText = None
def add(self, _object):
self._layout.addWidget(_object)
def exec_(self):
if self.okButtonText:
self.okButton.setText(str(self.okButtonText))
if (self.cancelButtonText):
self.cancelButton.setText(str(self.cancelButtonText))
self._layout.addWidget(self.buttonBox)
return super(Dialog, self).exec_()
def newTab(self, name):
if self._tab.isHidden():
self._tab.show()
self._tab.addTab(QtWidgets.QWidget(), str(name))
def __getattr__(self, name):
if name == "caption":
name = self.setWindowTitle
return getattr(super(Dialog, self), name)
class ConvertDialog(QDialog):
hide_text = _('&Hide styles')
show_text = _('&Show styles')
prince_log = ''
prince_file = ''
prince_css = ''
# GUI definition
def __init__(self, mi, fmt, opf, oeb, icon):
'''
:param mi: The book metadata
:param fmt: The source format used for conversion
:param opf: The path to the OPF file
:param oeb: An OEB object for the unpacked book
:param icon: The window icon
'''
self.opf = opf
self.oeb = oeb
self.mi = mi
# The unpacked book needs to be parsed before, to read the contents
# of the prince-style file, if it exists
self.parse()
QDialog.__init__(self)
self.setAttribute(Qt.WA_DeleteOnClose)
self.setWindowTitle(_('Convert to PDF with Prince'))
self.setWindowIcon(icon)
self.l = QVBoxLayout()
self.setLayout(self.l)
self.title_label = QLabel(_('<b>Title:</b> %s') % self.mi.title)
self.l.addWidget(self.title_label)
self.format_label = QLabel(_('<b>Source format:</b> %s') % fmt)
self.l.addWidget(self.format_label)
self.add_book = QCheckBox(_('&Add PDF to the book record'))
self.add_book.setToolTip(_('<qt>Add the converted PDF to the selected book record</qt>'))
self.add_book.setChecked(prefs['add_book'])
self.add_book.stateChanged.connect(self.set_add_book)
self.l.addWidget(self.add_book)
self.ll = QHBoxLayout()
self.ll.setAlignment(Qt.AlignLeft)
self.l.addLayout(self.ll)
self.label_css = QLabel(_('&Custom style:'))
self.ll.addWidget(self.label_css)
self.css_list = QComboBox()
self.css_list.setToolTip(_('<qt>Select one style to use. Additional styles can be created in the plugin configuration</qt>'))
for key in sorted(prefs['custom_CSS_list'], key=lambda x: x.lower()):
self.css_list.addItem(key, key)
self.css_list.setCurrentIndex(self.css_list.findText(prefs['default_CSS']))
self.css_list.currentIndexChanged.connect(self.set_css)
self.ll.addWidget(self.css_list)
self.label_css.setBuddy(self.css_list)
self.ll_ = QHBoxLayout()
self.l.addLayout(self.ll_)
self.label_args = QLabel(_('A&dditional command-line arguments:'))
self.ll_.addWidget(self.label_args)
self.args = QLineEdit(self)
self.args.setText(prefs['custom_args_list'][prefs['default_CSS']])
self.args.setToolTip(_('<qt>Specify additional command-line arguments for the conversion</qt>'))
self.ll_.addWidget(self.args)
self.label_args.setBuddy(self.args)
self.css = QTabWidget()
self.l.addWidget(self.css)
self.css1 = TextEditWithTooltip(self, expected_geometry=(80,20))
self.css1.setLineWrapMode(TextEditWithTooltip.NoWrap)
self.css1.load_text(self.replace_templates(prefs['custom_CSS_list'][prefs['default_CSS']]),'css')
self.css1.setToolTip(_('<qt>This stylesheet can be modified<br/>The default can be configured</qt>'))
i = self.css.addTab(self.css1, _('C&ustom CSS'))
self.css.setTabToolTip(i, _('<qt>Custom CSS stylesheet to be used for this conversion</qt>'))
monofont = QFont('')
monofont.setStyleHint(QFont.TypeWriter)
if (self.prince_css):
self.css2 = QPlainTextEdit()
self.css2.setStyleSheet('* { font-family: monospace }')
self.css2.setLineWrapMode(QPlainTextEdit.NoWrap)
self.css2.setPlainText(self.prince_css)
self.css2.setReadOnly(True)
self.css2.setToolTip(_('<qt>This stylesheet cannot be modified</qt>'))
i = self.css.addTab(self.css2, _('&Book CSS'))
self.css.setTabToolTip(i, _('<qt>Book-specific CSS stylesheet included in the ebook file</qt>'))
self.ll = QHBoxLayout()
self.l.addLayout(self.ll)
if (prefs['show_CSS']):
self.toggle = QPushButton(self.hide_text, self)
else:
self.toggle = QPushButton(self.show_text, self)
self.toggle.setToolTip(_('<qt>Show/hide the additional styles used for the conversion</qt>'))
self.toggle.clicked.connect(self.toggle_tabs)
self.convert = QPushButton(_('Con&vert'), self)
self.convert.setToolTip(_('<qt>Run the conversion with Prince</qt>'))
self.convert.setDefault(True)
self.buttons = QDialogButtonBox(QDialogButtonBox.Cancel)
self.buttons.addButton(self.toggle, QDialogButtonBox.ResetRole)
self.buttons.addButton(self.convert, QDialogButtonBox.AcceptRole)
self.l.addWidget(self.buttons)
self.buttons.accepted.connect(self.prince_convert)
self.buttons.rejected.connect(self.reject)
if (not prefs['show_CSS']):
self.css.hide()
self.adjustSize()
def toggle_tabs(self):
'''
Enable/disable the CSS tabs, and store the setting
'''
if (self.css.isVisible()):
self.css.hide()
self.label_args.hide()
self.args.hide()
self.toggle.setText(self.show_text)
self.adjustSize()
else:
self.css.show()
self.label_args.show()
self.args.show()
self.toggle.setText(self.hide_text)
self.adjustSize()
prefs['show_CSS'] = self.css.isVisible()
def set_add_book(self):
'''
Save the status of the add_book checkbox
'''
prefs['add_book'] = self.add_book.isChecked()
def set_css(self):
'''
Fill the custom CSS text box with the selected stylesheet (and command-line arguments)
'''
style = unicode(self.css_list.currentText())
self.css1.load_text(self.replace_templates(prefs['custom_CSS_list'][style]),'css')
self.args.setText(prefs['custom_args_list'][style])
prefs['default_CSS'] = style
def parse(self):
'''
Parse the unpacked OPF file to find and read the prince-style file
'''
from calibre.constants import DEBUG
from os.path import dirname, join
from lxml import etree
import codecs
if DEBUG: print(_('Parsing book...'))
opf_dir = dirname(self.opf)
root = etree.parse(self.opf).getroot()
metadata = root.find('{*}metadata')
for meta in metadata.findall("{*}meta[@name='prince-style']"):
prince_id = meta.get('content')
for item in self.oeb.manifest:
if (item.id == prince_id):
self.prince_file = item.href
break
if (self.prince_file):
fl = codecs.open(join(opf_dir, self.prince_file), 'rb', 'utf-8')
self.prince_css = fl.read()
fl.close()
def replace_templates(self, text):
'''
Replace templates (enclosed by '@{@', '@}@') in the input text
'''
import re
import json
from calibre.ebooks.metadata.book.formatter import SafeFormat
from calibre.constants import DEBUG
matches = list(re.finditer('@{@(.+?)@}@',text,re.DOTALL))
results = {}
for match in reversed(matches):
result = SafeFormat().safe_format(match.group(1), self.mi, ('EXCEPTION: '), self.mi)
# Escape quotes, backslashes and newlines
result = re.sub(r'''['"\\]''', r'\\\g<0>', result)
result = re.sub('\n', r'\A ', result)
results[match.group(1)] = result
text = text[:match.start(0)] + result + text[match.end(0):]
if DEBUG:
print(_('Replacing templates'))
for match in matches:
print(_('Found: %s (%d-%d)') % (match.group(1), match.start(0), match.end(0)))
print(_('Replace with: %s') % results[match.group(1)])
return text
def prince_convert(self):
'''
Call the actual Prince command to convert to PDF
'''
from os import makedirs
from os.path import dirname, join, exists
from calibre.ptempfile import PersistentTemporaryFile
from calibre.constants import DEBUG
from shlex import split as shsplit
# All files are relative to the OPF location
opf_dir = dirname(self.opf)
base_dir = dirname(self.pdf_file)
base_dir = join(opf_dir, base_dir)
try:
makedirs(base_dir)
except BaseException:
if not exists(base_dir): raise
# Create a temporary CSS file with the box contents
custom_CSS = PersistentTemporaryFile()
custom_CSS.write(unicode(self.css1.toPlainText()))
custom_CSS.close()
# Create a temporary file with the list of input files
file_list = PersistentTemporaryFile()
for item in self.oeb.spine:
file_list.write(item.href + "\n")
file_list.close()
# Build the command line
command = prefs['prince_exe']
args = ['-v']
if self.prince_file:
args.append('-s')
args.append(self.prince_file)
args.append('-s')
args.append(custom_CSS.name)
args.append('-l')
args.append(file_list.name)
args.append('-o')
args.append(self.pdf_file)
# Additional command-line arguments
args.extend(shsplit(self.args.text()))
# Hide the convert button and show a busy indicator
self.convert.setEnabled(False)
self.progress_bar = QProgressBar()
self.progress_bar.setRange(0,0)
self.progress_bar.setValue(0)
self.l.addWidget(self.progress_bar)
# Run the command and return the path to the PDF file
if DEBUG: print(_('Converting book...'))
process = QProcess(self)
process.setWorkingDirectory(opf_dir)
process.setProcessChannelMode(QProcess.MergedChannels);
process.error.connect(self.error)
process.finished.connect(self.end)
self.process = process
if DEBUG:
from subprocess import list2cmdline
line = list2cmdline([command] + args)
print(_('Command line: %s') % line)
process.start(command, args)
def error(self, rc):
'''
Show a message when there is an error in the command
:param rc: The error code
'''
from calibre.gui2 import error_dialog
# Remove the progress bar while the error message is displayed
self.progress_bar.hide()
self.progress_bar.deleteLater()
error_dialog(self, _('Process error'), _('<p>Error code: %s'
'<p>make sure Prince (<a href="http://www.princexml.com">www.princexml.com</a>) is installed '
'and the correct command-line-interface executable is set in the configuration of this plugin, '
'which is usually:'
'<ul><li>In Windows: <code><i>Prince_folder</i>\\Engine\\bin\\prince.exe</code>'
' <li>In Linux: <code>prince</code>'
'</ul>') % rc, show=True)
self.pdf_file = None
self.accept()
def end(self, rc):
'''
Close and return the filename when the process ends
:param rc: The return code (0 if successful)
'''
from os.path import join
self.prince_log = unicode(self.process.readAllStandardOutput().data())
opf_dir = unicode(self.process.workingDirectory())
if (rc == 0):
self.pdf_file = join(opf_dir, self.pdf_file)
else:
self.pdf_file = None
self.accept()
class ConvertDialog(QDialog):
hide_text = _('&Hide styles')
show_text = _('&Show styles')
prince_log = ''
prince_file = ''
prince_css = ''
# GUI definition
def __init__(self, mi, fmt, opf, oeb, icon):
'''
:param mi: The book metadata
:param fmt: The source format used for conversion
:param opf: The path to the OPF file
:param oeb: An OEB object for the unpacked book
:param icon: The window icon
'''
self.opf = opf
self.oeb = oeb
self.mi = mi
# The unpacked book needs to be parsed before, to read the contents
# of the prince-style file, if it exists
self.parse()
QDialog.__init__(self)
self.setAttribute(Qt.WA_DeleteOnClose)
self.setWindowTitle(_('Convert to PDF with Prince'))
self.setWindowIcon(icon)
self.l = QVBoxLayout()
self.setLayout(self.l)
self.title_label = QLabel(_('<b>Title:</b> %s') % self.mi.title)
self.l.addWidget(self.title_label)
self.format_label = QLabel(_('<b>Source format:</b> %s') % fmt)
self.l.addWidget(self.format_label)
self.add_book = QCheckBox(_('&Add PDF to the book record'))
self.add_book.setToolTip(
_('<qt>Add the converted PDF to the selected book record</qt>'))
self.add_book.setChecked(prefs['add_book'])
self.add_book.stateChanged.connect(self.set_add_book)
self.l.addWidget(self.add_book)
self.ll = QHBoxLayout()
self.ll.setAlignment(Qt.AlignLeft)
self.l.addLayout(self.ll)
self.label_css = QLabel(_('&Custom style:'))
self.ll.addWidget(self.label_css)
self.css_list = QComboBox()
self.css_list.setToolTip(
_('<qt>Select one style to use. Additional styles can be created in the plugin configuration</qt>'
))
for key in sorted(prefs['custom_CSS_list'], key=lambda x: x.lower()):
self.css_list.addItem(key, key)
self.css_list.setCurrentIndex(
self.css_list.findText(prefs['default_CSS']))
self.css_list.currentIndexChanged.connect(self.set_css)
self.ll.addWidget(self.css_list)
self.label_css.setBuddy(self.css_list)
self.ll_ = QHBoxLayout()
self.l.addLayout(self.ll_)
self.label_args = QLabel(_('A&dditional command-line arguments:'))
self.ll_.addWidget(self.label_args)
self.args = QLineEdit(self)
self.args.setText(prefs['custom_args_list'][prefs['default_CSS']])
self.args.setToolTip(
_('<qt>Specify additional command-line arguments for the conversion</qt>'
))
self.ll_.addWidget(self.args)
self.label_args.setBuddy(self.args)
self.css = QTabWidget()
self.l.addWidget(self.css)
self.css1 = TextEditWithTooltip(self, expected_geometry=(80, 20))
self.css1.setLineWrapMode(TextEditWithTooltip.NoWrap)
self.css1.load_text(
self.replace_templates(
prefs['custom_CSS_list'][prefs['default_CSS']]), 'css')
self.css1.setToolTip(
_('<qt>This stylesheet can be modified<br/>The default can be configured</qt>'
))
i = self.css.addTab(self.css1, _('C&ustom CSS'))
self.css.setTabToolTip(
i,
_('<qt>Custom CSS stylesheet to be used for this conversion</qt>'))
monofont = QFont('')
monofont.setStyleHint(QFont.TypeWriter)
if (self.prince_css):
self.css2 = QPlainTextEdit()
self.css2.setStyleSheet('* { font-family: monospace }')
self.css2.setLineWrapMode(QPlainTextEdit.NoWrap)
self.css2.setPlainText(self.prince_css)
self.css2.setReadOnly(True)
self.css2.setToolTip(
_('<qt>This stylesheet cannot be modified</qt>'))
i = self.css.addTab(self.css2, _('&Book CSS'))
self.css.setTabToolTip(
i,
_('<qt>Book-specific CSS stylesheet included in the ebook file</qt>'
))
self.ll = QHBoxLayout()
self.l.addLayout(self.ll)
if (prefs['show_CSS']):
self.toggle = QPushButton(self.hide_text, self)
else:
self.toggle = QPushButton(self.show_text, self)
self.toggle.setToolTip(
_('<qt>Show/hide the additional styles used for the conversion</qt>'
))
self.toggle.clicked.connect(self.toggle_tabs)
self.convert = QPushButton(_('Con&vert'), self)
self.convert.setToolTip(_('<qt>Run the conversion with Prince</qt>'))
self.convert.setDefault(True)
self.buttons = QDialogButtonBox(QDialogButtonBox.Cancel)
self.buttons.addButton(self.toggle, QDialogButtonBox.ResetRole)
self.buttons.addButton(self.convert, QDialogButtonBox.AcceptRole)
self.l.addWidget(self.buttons)
self.buttons.accepted.connect(self.prince_convert)
self.buttons.rejected.connect(self.reject)
if (not prefs['show_CSS']):
self.css.hide()
self.adjustSize()
def toggle_tabs(self):
'''
Enable/disable the CSS tabs, and store the setting
'''
if (self.css.isVisible()):
self.css.hide()
self.label_args.hide()
self.args.hide()
self.toggle.setText(self.show_text)
self.adjustSize()
else:
self.css.show()
self.label_args.show()
self.args.show()
self.toggle.setText(self.hide_text)
self.adjustSize()
prefs['show_CSS'] = self.css.isVisible()
def set_add_book(self):
'''
Save the status of the add_book checkbox
'''
prefs['add_book'] = self.add_book.isChecked()
def set_css(self):
'''
Fill the custom CSS text box with the selected stylesheet (and command-line arguments)
'''
style = unicode(self.css_list.currentText())
self.css1.load_text(
self.replace_templates(prefs['custom_CSS_list'][style]), 'css')
self.args.setText(prefs['custom_args_list'][style])
prefs['default_CSS'] = style
def parse(self):
'''
Parse the unpacked OPF file to find and read the prince-style file
'''
from calibre.constants import DEBUG
from os.path import dirname, join
from lxml import etree
import codecs
if DEBUG: print(_('Parsing book...'))
opf_dir = dirname(self.opf)
root = etree.parse(self.opf).getroot()
metadata = root.find('{*}metadata')
for meta in metadata.findall("{*}meta[@name='prince-style']"):
prince_id = meta.get('content')
for item in self.oeb.manifest:
if (item.id == prince_id):
self.prince_file = item.href
break
if (self.prince_file):
fl = codecs.open(join(opf_dir, self.prince_file), 'rb', 'utf-8')
self.prince_css = fl.read()
fl.close()
def replace_templates(self, text):
'''
Replace templates (enclosed by '@{@', '@}@') in the input text
'''
import re
import json
from calibre.ebooks.metadata.book.formatter import SafeFormat
from calibre.constants import DEBUG
matches = list(re.finditer('@{@(.+?)@}@', text, re.DOTALL))
results = {}
for match in reversed(matches):
result = SafeFormat().safe_format(match.group(1), self.mi,
('EXCEPTION: '), self.mi)
# Escape quotes, backslashes and newlines
result = re.sub(r'''['"\\]''', r'\\\g<0>', result)
result = re.sub('\n', r'\\A ', result)
results[match.group(1)] = result
text = text[:match.start(0)] + result + text[match.end(0):]
if DEBUG:
print(_('Replacing templates'))
for match in matches:
print(
_('Found: %s (%d-%d)') %
(match.group(1), match.start(0), match.end(0)))
print(_('Replace with: %s') % results[match.group(1)])
return text
def prince_convert(self):
'''
Call the actual Prince command to convert to PDF
'''
from os import makedirs
from os.path import dirname, join, exists
from calibre.ptempfile import PersistentTemporaryFile
from calibre.constants import DEBUG
from shlex import split as shsplit
# All files are relative to the OPF location
opf_dir = dirname(self.opf)
base_dir = dirname(self.pdf_file)
base_dir = join(opf_dir, base_dir)
try:
makedirs(base_dir)
except BaseException:
if not exists(base_dir): raise
# Create a temporary CSS file with the box contents
custom_CSS = PersistentTemporaryFile(mode='w+')
custom_CSS.write(unicode(self.css1.toPlainText()))
custom_CSS.close()
# Create a temporary file with the list of input files
file_list = PersistentTemporaryFile(mode='w+')
for item in self.oeb.spine:
file_list.write(item.href + "\n")
file_list.close()
# Build the command line
command = prefs['prince_exe']
args = ['-v']
if self.prince_file:
args.append('-s')
args.append(self.prince_file)
args.append('-s')
args.append(custom_CSS.name)
args.append('-l')
args.append(file_list.name)
args.append('-o')
args.append(self.pdf_file)
# Additional command-line arguments
args.extend(shsplit(self.args.text()))
# Hide the convert button and show a busy indicator
self.convert.setEnabled(False)
self.progress_bar = QProgressBar()
self.progress_bar.setRange(0, 0)
self.progress_bar.setValue(0)
self.l.addWidget(self.progress_bar)
# Run the command and return the path to the PDF file
if DEBUG: print(_('Converting book...'))
process = QProcess(self)
process.setWorkingDirectory(opf_dir)
process.setProcessChannelMode(QProcess.MergedChannels)
process.error.connect(self.error)
process.finished.connect(self.end)
self.process = process
if DEBUG:
from subprocess import list2cmdline
line = list2cmdline([command] + args)
print(_('Command line: %s') % line)
process.start(command, args)
def error(self, rc):
'''
Show a message when there is an error in the command
:param rc: The error code
'''
from calibre.gui2 import error_dialog
# Remove the progress bar while the error message is displayed
self.progress_bar.hide()
self.progress_bar.deleteLater()
error_dialog(
self,
_('Process error'),
_('<p>Error code: %s'
'<p>make sure Prince (<a href="http://www.princexml.com">www.princexml.com</a>) is installed '
'and the correct command-line-interface executable is set in the configuration of this plugin, '
'which is usually:'
'<ul><li>In Windows: <code><i>Prince_folder</i>\\Engine\\bin\\prince.exe</code>'
' <li>In Linux: <code>prince</code>'
'</ul>') % rc,
show=True)
self.pdf_file = None
self.accept()
def end(self, rc):
'''
Close and return the filename when the process ends
:param rc: The return code (0 if successful)
'''
from os.path import join
self.prince_log = unicode(self.process.readAllStandardOutput().data())
opf_dir = unicode(self.process.workingDirectory())
if (rc == 0):
self.pdf_file = join(opf_dir, self.pdf_file)
else:
self.pdf_file = None
self.accept()