Files
Lector/__main__.py
2017-11-07 20:07:33 +05:30

399 lines
15 KiB
Python
Executable File

#!/usr/bin/env python3
""" TODO
✓ sqlite3 for cover images cache
✓ sqlite3 for storing metadata
✓ Drop down for SortBy (library view)
✓ Define every widget in code because you're going to need to create separate tabs
✓ Override the keypress event of the textedit
✓ Search bar in toolbar
Goodreads API: Ratings, Read, Recommendations
Get ISBN using python-isbnlib
All ebooks should be returned as HTML
Theming
Search bar in toolbar
Drop down for TOC (book view)
Pagination
sqlite3 for caching files open @ time of exit
Use format* icons for toolbar buttons
Information dialog widget
Check file hashes upon restart
Recursive file addition
Set context menu for definitions and the like
"""
import os
import sys
from PyQt5 import QtWidgets, QtGui, QtCore
import mainwindow
import database
import book_parser
class MainUI(QtWidgets.QMainWindow, mainwindow.Ui_MainWindow):
#pylint: disable-msg=E1101
def __init__(self):
super(self.__class__, self).__init__()
self.setupUi(self)
# Initialize application
Settings(self).read_settings() # This should populate all variables that need
# to be remembered across sessions
Toolbars(self)
# This is an ugly hack?
# I can't seem to access the Qcombobox the usual way
self.librarySortingBox = self.LibraryToolBar.findChild(QtWidgets.QComboBox)
self.libraryFilterEdit = self.LibraryToolBar.findChild(QtWidgets.QLineEdit)
database.DatabaseInit(self.database_path)
self.lib_ref = Library(self)
self.viewModel = None
# Right align everything in the statusbar
self.statusMessage = QtWidgets.QLabel()
self.statusMessage.setObjectName('statusMessage')
self.statusBar.addPermanentWidget(self.statusMessage)
# New tabs and their contents
self.tabs = {}
self.current_tab = None
self.current_textEdit = None
# Toolbar switching
self.tabWidget.currentChanged.connect(self.toolbar_switch)
# Tab closing
self.tabWidget.setTabsClosable(True)
self.tabWidget.tabBar().setTabButton(0, QtWidgets.QTabBar.RightSide, None)
self.tabWidget.tabCloseRequested.connect(self.close_tab_class)
# ListView
self.listView.setSpacing(15)
self.reload_listview()
self.listView.doubleClicked.connect(self.listclick)
# Keyboard shortcuts
self.exit_all = QtWidgets.QShortcut(QtGui.QKeySequence('Ctrl+Q'), self)
self.exit_all.activated.connect(QtWidgets.qApp.exit)
def create_tab_class(self):
# TODO
# Shift focus to tab if it's already open instead of creating
# a new one
self.tabs['TitleText'] = {
'information about': 'This tab'}
this_tab = Tabs(self, 'TitleText')
this_tab.create_tab()
def add_books(self):
# TODO
# Maybe expand this to traverse directories recursively
self.statusMessage.setText('Adding books...')
my_file = QtWidgets.QFileDialog.getOpenFileNames(
self, 'Open file', self.last_open_path, "eBooks (*.epub *.mobi *.txt)")
if my_file[0]:
self.listView.setEnabled(False)
self.last_open_path = os.path.dirname(my_file[0][0])
books = book_parser.BookSorter(my_file[0])
parsed_books = books.initiate_threads()
database.DatabaseFunctions(self.database_path).add_to_database(parsed_books)
self.listView.setEnabled(True)
self.viewModel = None
self.reload_listview()
def delete_books(self):
selected_books = self.listView.selectedIndexes()
if selected_books:
def ifcontinue(box_button):
if box_button.text() == '&Yes':
selected_hashes = []
for i in selected_books:
book_data = i.data(QtCore.Qt.UserRole + 3)
selected_hashes.append(book_data['book_hash'])
database.DatabaseFunctions(
self.database_path).delete_from_database(selected_hashes)
self.viewModel = None
self.reload_listview()
selected_number = len(selected_books)
msg_box = QtWidgets.QMessageBox()
msg_box.setText(f'Delete {selected_number} book(s)?')
msg_box.setIcon(QtWidgets.QMessageBox.Question)
msg_box.setWindowTitle('Confirm deletion')
msg_box.setStandardButtons(
QtWidgets.QMessageBox.Yes | QtWidgets.QMessageBox.No)
msg_box.buttonClicked.connect(ifcontinue)
msg_box.show()
msg_box.exec_()
def reload_listview(self):
if not self.viewModel:
self.lib_ref.generate_model()
self.lib_ref.update_listView()
def close_tab_class(self, tab_index):
this_tab = Tabs(self, None)
this_tab.close_tab(tab_index)
def toolbar_switch(self):
if self.tabWidget.currentIndex() == 0:
self.BookToolBar.hide()
self.LibraryToolBar.show()
else:
self.BookToolBar.show()
self.LibraryToolBar.hide()
def set_fullscreen(self):
self.current_tab = self.tabWidget.currentIndex()
self.current_textEdit = self.tabWidget.widget(self.current_tab)
self.exit_shortcut = QtWidgets.QShortcut(
QtGui.QKeySequence('Escape'), self.current_textEdit)
self.exit_shortcut.activated.connect(self.set_normalsize)
self.current_textEdit.setWindowFlags(QtCore.Qt.Window)
self.current_textEdit.setWindowState(QtCore.Qt.WindowFullScreen)
self.hide()
self.current_textEdit.show()
def set_normalsize(self):
self.current_textEdit.setWindowState(QtCore.Qt.WindowNoState)
self.current_textEdit.setWindowFlags(QtCore.Qt.Widget)
self.show()
self.current_textEdit.show()
def listclick(self, myindex):
index = self.listView.model().index(myindex.row(), 0)
print(self.listView.model().data(index, QtCore.Qt.UserRole))
def closeEvent(self, event):
Settings(self).save_settings()
class Library:
def __init__(self, parent):
self.parent_window = parent
def generate_model(self):
# TODO
# Use QItemdelegates to show book read progress
# The QlistView widget needs to be populated
# with a model that inherits from QStandardItemModel
self.parent_window.viewModel = QtGui.QStandardItemModel()
books = database.DatabaseFunctions(
self.parent_window.database_path).fetch_data(
('*',),
'books',
{'Title': ''},
'LIKE')
if not books:
print('Database returned nothing')
return
# The sorting indices are related to the indices of what the library returns
# by -1. Consider making this something more foolproof. Maybe.
# sortingbox_index = self.parent_window.librarySortingBox.currentIndex()
# books = sorted(books, key=lambda x: x[sortingbox_index + 1])
for i in books:
# The database query returns a tuple with the following indices
# Index 0 is the key ID is ignored
book_title = i[1]
book_author = i[2]
book_year = i[3]
book_cover = i[8]
book_tags = i[6]
additional_data = {
'book_title': i[1],
'book_path': i[4],
'book_isbn': i[5],
'book_hash': i[7]}
tooltip_string = book_title + '\nAuthor: ' + book_author + '\nYear: ' + str(book_year)
if book_tags:
tooltip_string += ('\nTags: ' + book_tags)
# This remarkably ugly hack is because the QSortFilterProxyModel
# doesn't easily allow searching through multiple item roles
search_workaround = book_title + ' ' + book_author
if book_tags:
search_workaround += book_tags
# Generate image pixmap and then pass it to the widget
# as a QIcon
# Additional data can be set using an incrementing
# QtCore.Qt.UserRole
# QtCore.Qt.DisplayRole is the same as item.setText()
# The model is a single row and has no columns
img_pixmap = QtGui.QPixmap()
img_pixmap.loadFromData(book_cover)
item = QtGui.QStandardItem()
item.setToolTip(tooltip_string)
item.setData(book_title, QtCore.Qt.UserRole)
item.setData(book_author, QtCore.Qt.UserRole + 1)
item.setData(book_year, QtCore.Qt.UserRole + 2)
item.setData(additional_data, QtCore.Qt.UserRole + 3)
item.setData(search_workaround, QtCore.Qt.UserRole + 4)
item.setIcon(QtGui.QIcon(img_pixmap))
self.parent_window.viewModel.appendRow(item)
def update_listView(self):
proxy_model = QtCore.QSortFilterProxyModel()
proxy_model.setSourceModel(self.parent_window.viewModel)
proxy_model.setFilterRole(QtCore.Qt.UserRole + 4)
proxy_model.setFilterCaseSensitivity(QtCore.Qt.CaseInsensitive)
proxy_model.setFilterWildcard(self.parent_window.libraryFilterEdit.text())
self.parent_window.statusMessage.setText(
str(proxy_model.rowCount()) + ' books')
# Sorting according to roles and the drop down in the library
proxy_model.setSortRole(
QtCore.Qt.UserRole + self.parent_window.librarySortingBox.currentIndex())
proxy_model.sort(0)
s = QtCore.QSize(200, 200) # Set icon sizing here
self.parent_window.listView.setIconSize(s)
self.parent_window.listView.setModel(proxy_model)
class Settings:
def __init__(self, parent):
self.parent_window = parent
self.settings = QtCore.QSettings('Lector', 'Lector')
def read_settings(self):
self.settings.beginGroup('mainWindow')
self.parent_window.resize(self.settings.value(
'windowSize',
QtCore.QSize(1299, 748)))
self.parent_window.move(self.settings.value(
'windowPosition',
QtCore.QPoint(286, 141)))
self.settings.endGroup()
self.settings.beginGroup('runtimeVariables')
self.parent_window.last_open_path = self.settings.value(
'lastOpenPath', os.path.expanduser('~'))
self.parent_window.database_path = self.settings.value(
'databasePath',
QtCore.QStandardPaths.writableLocation(QtCore.QStandardPaths.AppDataLocation))
self.settings.endGroup()
def save_settings(self):
self.settings.beginGroup('mainWindow')
self.settings.setValue('windowSize', self.parent_window.size())
self.settings.setValue('windowPosition', self.parent_window.pos())
self.settings.endGroup()
self.settings.beginGroup('runtimeVariables')
self.settings.setValue('lastOpenPath', self.parent_window.last_open_path)
self.settings.setValue('databasePath', self.parent_window.database_path)
self.settings.endGroup()
class Toolbars:
# TODO
# Inheritances so that this self.parent_window.
# bullshit can be removed
def __init__(self, parent):
self.parent_window = parent
self.parent_window.BookToolBar.hide()
self.create_toolbars()
def create_toolbars(self):
# Book Toolbar
fullscreenButton = QtWidgets.QAction(
QtGui.QIcon.fromTheme('view-fullscreen'), 'Fullscreen', self.parent_window)
self.parent_window.BookToolBar.addAction(fullscreenButton)
self.parent_window.BookToolBar.setIconSize(QtCore.QSize(22, 22))
fullscreenButton.triggered.connect(self.parent_window.set_fullscreen)
# Library Toolbar
addButton = QtWidgets.QAction(
QtGui.QIcon.fromTheme('add'), 'Add book', self.parent_window)
deleteButton = QtWidgets.QAction(
QtGui.QIcon.fromTheme('remove'), 'Delete book', self.parent_window)
settingsButton = QtWidgets.QAction(
QtGui.QIcon.fromTheme('settings'), 'Settings', self.parent_window)
addButton.triggered.connect(self.parent_window.add_books)
settingsButton.triggered.connect(self.parent_window.create_tab_class)
deleteButton.triggered.connect(self.parent_window.delete_books)
# Filter
filterEdit = QtWidgets.QLineEdit()
filterEdit.setPlaceholderText('Search for Title, Author, Tags...')
sizePolicy = QtWidgets.QSizePolicy(
QtWidgets.QSizePolicy.MinimumExpanding, QtWidgets.QSizePolicy.Fixed)
filterEdit.setSizePolicy(sizePolicy)
filterEdit.setContentsMargins(200, 0, 200, 0)
filterEdit.setMinimumWidth(150)
filterEdit.textChanged.connect(self.parent_window.reload_listview)
# Sorter
sorting_choices = ['Title', 'Author', 'Year']
sortingBox = QtWidgets.QComboBox()
sortingBox.addItems(sorting_choices)
sortingBox.setObjectName('sortingBox')
sortingBox.setToolTip('Sort by')
sortingBox.activated.connect(self.parent_window.reload_listview)
# Spacer
spacer = QtWidgets.QWidget()
spacer.setSizePolicy(QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Expanding)
# Add widgets to toolbar
self.parent_window.LibraryToolBar.addAction(addButton)
self.parent_window.LibraryToolBar.addAction(deleteButton)
self.parent_window.LibraryToolBar.addSeparator()
self.parent_window.LibraryToolBar.addAction(settingsButton)
self.parent_window.LibraryToolBar.addWidget(spacer)
self.parent_window.LibraryToolBar.addWidget(filterEdit)
self.parent_window.LibraryToolBar.addWidget(spacer)
self.parent_window.LibraryToolBar.addWidget(sortingBox)
class Tabs:
def __init__(self, parent, book_title):
self.parent_window = parent
self.book_title = book_title
def create_tab(self):
self.tab = QtWidgets.QWidget()
self.tab.setObjectName("newtab")
self.gridLayout = QtWidgets.QGridLayout(self.tab)
self.gridLayout.setObjectName("gridLayout")
self.textEdit = QtWidgets.QTextEdit(self.tab)
self.textEdit.setObjectName("textEdit")
self.textEdit.setFrameShape(QtWidgets.QFrame.NoFrame)
self.gridLayout.addWidget(self.textEdit, 0, 0, 1, 1)
self.parent_window.tabWidget.addTab(self.tab, self.book_title)
self.textEdit.setText(','.join(dir(self.parent_window)))
def close_tab(self, tab_index):
tab_title = self.parent_window.tabWidget.tabText(tab_index).replace('&', '')
print(self.parent_window.tabs[tab_title])
self.parent_window.tabWidget.removeTab(tab_index)
def main():
app = QtWidgets.QApplication(sys.argv)
app.setApplicationName('Lector') # This is needed for QStandardPaths
# and my own hubris
form = MainUI()
form.show()
app.exec_()
if __name__ == '__main__':
main()