372 lines
14 KiB
Python
Executable File
372 lines
14 KiB
Python
Executable File
#!/usr/bin/env python3
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""" TODO
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✓ sqlite3 for cover images cache
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✓ sqlite3 for storing metadata
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✓ Drop down for SortBy (library view)
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✓ Define every widget in code because you're going to need to create separate tabs
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✓ Override the keypress event of the textedit
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✓ Search bar in toolbar
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✓ Shift focus to the tab that has the book open
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✓ Search bar in toolbar
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✓ Drop down for TOC (book view)
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mobi support
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txt, doc support
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pdf support?
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Goodreads API: Ratings, Read, Recommendations
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Get ISBN using python-isbnlib
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All ebooks should first be added to the database and then returned as HTML
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Theming
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Pagination
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Use format* icons for toolbar buttons
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Information dialog widget
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Check file hashes upon restart
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Recursive file addition
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Library context menu: Cache, Read, Edit database, delete
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Set context menu for definitions and the like
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"""
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import os
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import sys
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from PyQt5 import QtWidgets, QtGui, QtCore
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import mainwindow
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import database
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import book_parser
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from widgets import LibraryToolBar, BookToolBar, Tab
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class MainUI(QtWidgets.QMainWindow, mainwindow.Ui_MainWindow):
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def __init__(self):
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super(self.__class__, self).__init__()
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self.setupUi(self)
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# Initialize application
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Settings(self).read_settings() # This should populate all variables that need
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# to be remembered across sessions
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# Create the database in case it doesn't exist
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database.DatabaseInit(self.database_path)
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# Create and right align the statusbar label widget
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self.statusMessage = QtWidgets.QLabel()
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self.statusMessage.setObjectName('statusMessage')
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self.statusBar.addPermanentWidget(self.statusMessage)
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# Init the QListView
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self.viewModel = None
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self.lib_ref = Library(self)
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# Create toolbars
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self.libraryToolBar = LibraryToolBar(self)
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self.libraryToolBar.addButton.triggered.connect(self.add_books)
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self.libraryToolBar.deleteButton.triggered.connect(self.delete_books)
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self.libraryToolBar.filterEdit.textChanged.connect(self.reload_listview)
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self.libraryToolBar.sortingBox.activated.connect(self.reload_listview)
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self.addToolBar(self.libraryToolBar)
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self.bookToolBar = BookToolBar(self)
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self.bookToolBar.fullscreenButton.triggered.connect(self.set_fullscreen)
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self.addToolBar(self.bookToolBar)
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# Make the correct toolbar visible
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self.tab_switch()
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self.tabWidget.currentChanged.connect(self.tab_switch)
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# New tabs and their contents
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self.current_tab = None
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self.current_textEdit = None
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# Tab closing
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self.tabWidget.setTabsClosable(True)
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self.tabWidget.tabBar().setTabButton(0, QtWidgets.QTabBar.RightSide, None)
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self.tabWidget.tabCloseRequested.connect(self.close_tab)
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# ListView
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# self.listView.setSpacing(0)
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self.listView.setGridSize(QtCore.QSize(175, 250))
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self.listView.verticalScrollBar().setSingleStep(7)
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self.listView.doubleClicked.connect(self.list_doubleclick)
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self.reload_listview()
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self.resizeEvent()
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# Keyboard shortcuts
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self.exit_all = QtWidgets.QShortcut(QtGui.QKeySequence('Ctrl+Q'), self)
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self.exit_all.activated.connect(self.closeEvent)
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def resizeEvent(self, event=None):
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# The hackiness of this hack is just...
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default_size = 175 # This is size of the QIcon (160 by default) +
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# minimum margin is needed between thumbnails
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# for n icons, the n + 1th icon will appear at > n +1.11875
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# First, calculate the number of images per row
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i = self.listView.viewport().width() / default_size
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rem = i - int(i)
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if rem >= .11875 and rem <= .9999:
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num_images = int(i)
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else:
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num_images = int(i) - 1
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# The rest is illustrated using informative variable names
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space_occupied = num_images * default_size
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space_left = (
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self.listView.viewport().width() - space_occupied - 19) # 19 is the scrollbar width
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try:
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layout_extra_space_per_image = space_left // num_images
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self.listView.setGridSize(
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QtCore.QSize(default_size + layout_extra_space_per_image, 240))
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except ZeroDivisionError: # Initial resize is ignored
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return
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def add_books(self):
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# TODO
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# Maybe expand this to traverse directories recursively
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self.statusMessage.setText('Adding books...')
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my_file = QtWidgets.QFileDialog.getOpenFileNames(
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self, 'Open file', self.last_open_path, "eBooks (*.epub *.mobi *.txt)")
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if my_file[0]:
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self.listView.setEnabled(False)
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self.last_open_path = os.path.dirname(my_file[0][0])
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books = book_parser.BookSorter(my_file[0])
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parsed_books = books.initiate_threads()
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database.DatabaseFunctions(self.database_path).add_to_database(parsed_books)
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self.listView.setEnabled(True)
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self.viewModel = None
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self.reload_listview()
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def delete_books(self):
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selected_books = self.listView.selectedIndexes()
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if selected_books:
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def ifcontinue(box_button):
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if box_button.text() == '&Yes':
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selected_hashes = []
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for i in selected_books:
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book_data = i.data(QtCore.Qt.UserRole + 3)
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selected_hashes.append(book_data['book_hash'])
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database.DatabaseFunctions(
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self.database_path).delete_from_database(selected_hashes)
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self.viewModel = None
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self.reload_listview()
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selected_number = len(selected_books)
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msg_box = QtWidgets.QMessageBox()
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msg_box.setText('Delete %d book(s)?' % selected_number)
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msg_box.setIcon(QtWidgets.QMessageBox.Question)
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msg_box.setWindowTitle('Confirm deletion')
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msg_box.setStandardButtons(
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QtWidgets.QMessageBox.Yes | QtWidgets.QMessageBox.No)
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msg_box.buttonClicked.connect(ifcontinue)
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msg_box.show()
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msg_box.exec_()
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def reload_listview(self):
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if not self.viewModel:
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self.lib_ref.generate_model()
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self.lib_ref.update_listView()
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def tab_switch(self):
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if self.tabWidget.currentIndex() == 0:
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self.bookToolBar.hide()
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self.libraryToolBar.show()
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if self.lib_ref.proxy_model:
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# Making the proxy model available doesn't affect
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# memory utilization at all. Bleh.
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self.statusMessage.setText(
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str(self.lib_ref.proxy_model.rowCount()) + ' Books')
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else:
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self.bookToolBar.show()
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self.libraryToolBar.hide()
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current_metadata = self.tabWidget.widget(
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self.tabWidget.currentIndex()).book_metadata
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current_title = current_metadata['book_title']
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current_author = current_metadata['book_author']
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self.statusMessage.setText(
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current_author + ' - ' + current_title)
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def set_fullscreen(self):
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self.current_tab = self.tabWidget.currentIndex()
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self.current_textEdit = self.tabWidget.widget(self.current_tab)
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self.exit_shortcut = QtWidgets.QShortcut(
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QtGui.QKeySequence('Escape'), self.current_textEdit)
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self.exit_shortcut.activated.connect(self.set_normalsize)
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self.current_textEdit.setWindowFlags(QtCore.Qt.Window)
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self.current_textEdit.setWindowState(QtCore.Qt.WindowFullScreen)
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self.hide()
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self.current_textEdit.show()
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def set_normalsize(self):
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self.current_textEdit.setWindowState(QtCore.Qt.WindowNoState)
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self.current_textEdit.setWindowFlags(QtCore.Qt.Widget)
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self.show()
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self.current_textEdit.show()
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def list_doubleclick(self, myindex):
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# TODO
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# Load the book.
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index = self.listView.model().index(myindex.row(), 0)
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book_metadata = self.listView.model().data(index, QtCore.Qt.UserRole + 3)
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# Shift focus to the tab that has the book open (if there is one)
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for i in range(1, self.tabWidget.count()):
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tab_book_metadata = self.tabWidget.widget(i).book_metadata
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if tab_book_metadata['book_hash'] == book_metadata['book_hash']:
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self.tabWidget.setCurrentIndex(i)
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return
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tab_ref = Tab(book_metadata, self.tabWidget)
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self.tabWidget.setCurrentWidget(tab_ref)
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print(tab_ref.book_metadata) # Metadata upon tab creation
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def close_tab(self, tab_index):
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print(self.tabWidget.widget(tab_index).book_metadata) # Metadata upon tab deletion
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self.tabWidget.removeTab(tab_index)
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def closeEvent(self, event=None):
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Settings(self).save_settings()
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QtWidgets.qApp.exit()
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class Library:
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def __init__(self, parent):
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self.parent_window = parent
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self.proxy_model = None
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def generate_model(self):
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# TODO
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# Use QItemdelegates to show book read progress
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# The QlistView widget needs to be populated
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# with a model that inherits from QStandardItemModel
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self.parent_window.viewModel = QtGui.QStandardItemModel()
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books = database.DatabaseFunctions(
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self.parent_window.database_path).fetch_data(
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('*',),
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'books',
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{'Title': ''},
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'LIKE')
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if not books:
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print('Database returned nothing')
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return
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for i in books:
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# The database query returns a tuple with the following indices
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# Index 0 is the key ID is ignored
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book_title = i[1]
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book_author = i[2]
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book_year = i[3]
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book_cover = i[8]
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book_tags = i[6]
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all_metadata = {
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'book_title': i[1],
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'book_author': i[2],
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'book_year': i[3],
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'book_path': i[4],
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'book_isbn': i[5],
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'book_tags': i[6],
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'book_hash': i[7]}
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tooltip_string = book_title + '\nAuthor: ' + book_author + '\nYear: ' + str(book_year)
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if book_tags:
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tooltip_string += ('\nTags: ' + book_tags)
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# This remarkably ugly hack is because the QSortFilterProxyModel
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# doesn't easily allow searching through multiple item roles
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search_workaround = book_title + ' ' + book_author
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if book_tags:
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search_workaround += book_tags
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# Generate image pixmap and then pass it to the widget
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# as a QIcon
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# Additional data can be set using an incrementing
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# QtCore.Qt.UserRole
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# QtCore.Qt.DisplayRole is the same as item.setText()
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# The model is a single row and has no columns
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img_pixmap = QtGui.QPixmap()
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img_pixmap.loadFromData(book_cover)
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img_pixmap = img_pixmap.scaled(420, 600, QtCore.Qt.IgnoreAspectRatio)
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item = QtGui.QStandardItem()
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item.setToolTip(tooltip_string)
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# The following order is needed to keep sorting working
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item.setData(book_title, QtCore.Qt.UserRole)
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item.setData(book_author, QtCore.Qt.UserRole + 1)
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item.setData(book_year, QtCore.Qt.UserRole + 2)
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item.setData(all_metadata, QtCore.Qt.UserRole + 3)
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item.setData(search_workaround, QtCore.Qt.UserRole + 4)
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item.setIcon(QtGui.QIcon(img_pixmap))
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self.parent_window.viewModel.appendRow(item)
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def update_listView(self):
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self.proxy_model = QtCore.QSortFilterProxyModel()
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self.proxy_model.setSourceModel(self.parent_window.viewModel)
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self.proxy_model.setFilterRole(QtCore.Qt.UserRole + 4)
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self.proxy_model.setFilterCaseSensitivity(QtCore.Qt.CaseInsensitive)
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self.proxy_model.setFilterWildcard(self.parent_window.libraryToolBar.filterEdit.text())
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self.parent_window.statusMessage.setText(
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str(self.proxy_model.rowCount()) + ' books')
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# Sorting according to roles and the drop down in the library
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self.proxy_model.setSortRole(
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QtCore.Qt.UserRole + self.parent_window.libraryToolBar.sortingBox.currentIndex())
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self.proxy_model.sort(0)
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s = QtCore.QSize(160, 250) # Set icon sizing here
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self.parent_window.listView.setIconSize(s)
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self.parent_window.listView.setModel(self.proxy_model)
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class Settings:
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def __init__(self, parent):
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self.parent_window = parent
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self.settings = QtCore.QSettings('Lector', 'Lector')
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def read_settings(self):
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self.settings.beginGroup('mainWindow')
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self.parent_window.resize(self.settings.value(
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'windowSize',
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QtCore.QSize(1299, 748)))
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self.parent_window.move(self.settings.value(
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'windowPosition',
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QtCore.QPoint(286, 141)))
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self.settings.endGroup()
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self.settings.beginGroup('runtimeVariables')
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self.parent_window.last_open_path = self.settings.value(
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'lastOpenPath', os.path.expanduser('~'))
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self.parent_window.database_path = self.settings.value(
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'databasePath',
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QtCore.QStandardPaths.writableLocation(QtCore.QStandardPaths.AppDataLocation))
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self.settings.endGroup()
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def save_settings(self):
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self.settings.beginGroup('mainWindow')
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self.settings.setValue('windowSize', self.parent_window.size())
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self.settings.setValue('windowPosition', self.parent_window.pos())
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self.settings.endGroup()
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self.settings.beginGroup('runtimeVariables')
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self.settings.setValue('lastOpenPath', self.parent_window.last_open_path)
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self.settings.setValue('databasePath', self.parent_window.database_path)
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self.settings.endGroup()
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def main():
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app = QtWidgets.QApplication(sys.argv)
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app.setApplicationName('Lector') # This is needed for QStandardPaths
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# and my own hubris
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form = MainUI()
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form.show()
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app.exec_()
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if __name__ == '__main__':
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main()
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