476 lines
18 KiB
Python
Executable File
476 lines
18 KiB
Python
Executable File
#!/usr/bin/env python3
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""" TODO
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Options:
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Check files (hashes) upon restart
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Recursive file addition
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Show what on startup
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If cache large files
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Library:
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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
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✓ Image delegates
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✓ Image reflow
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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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Tie file deletion and tab closing to model updates
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? Create emblem per filetype
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Look into how you might group icons
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Ignore a / the / numbers for sorting purposes
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Put the path in the scope of the search
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maybe as a type: switch
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Mass tagging
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Information dialog widget
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Context menu: Cache, Read, Edit database, delete, Mark read/unread
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Create separate thread for parser - Show progress in main window
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Reading:
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✓ Drop down for TOC
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✓ Override the keypress event of the textedit
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✓ Use format* icons for toolbar buttons
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✓ Implement book view settings with a(nother) toolbar
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✓ Substitute textedit for another widget
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✓ Theming
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✓ Keep fontsize and margins consistent - Let page increase in length
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✓ Fullscreening
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Record progress
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All ebooks should first be added to the database and then returned as HTML
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Pagination
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Set context menu for definitions and the like
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Filetypes:
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? Plugin system for parsers
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? pdf support
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epub support
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mobi, azw support
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txt, doc, djvu support
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cbz, cbr support
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Keep font settings enabled but only for background color
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Internet:
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Goodreads API: Ratings, Read, Recommendations
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Get ISBN using python-isbnlib
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Other:
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✓ Define every widget in code
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? Include icons for emblems
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"""
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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 sorter
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from widgets import LibraryToolBar, BookToolBar, Tab
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from widgets import LibraryDelegate, BackGroundTabUpdate, BackGroundBookAddition
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from library import Library
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from settings import Settings
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class MainUI(QtWidgets.QMainWindow, mainwindow.Ui_MainWindow):
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def __init__(self):
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super(MainUI, 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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# Background Thread
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self.thread = None
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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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# Application wide temporary directory
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self.temp_dir = QtCore.QTemporaryDir()
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# Library toolbar
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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.searchBar.textChanged.connect(self.lib_ref.update_proxymodel)
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self.libraryToolBar.sortingBox.activated.connect(self.lib_ref.update_proxymodel)
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self.addToolBar(self.libraryToolBar)
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# Book toolbar
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self.bookToolBar = BookToolBar(self)
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self.bookToolBar.fullscreenButton.triggered.connect(self.set_fullscreen)
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for count, i in enumerate(self.display_profiles):
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self.bookToolBar.profileBox.setItemData(count, i, QtCore.Qt.UserRole)
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self.bookToolBar.profileBox.currentIndexChanged.connect(self.format_contentView)
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self.bookToolBar.profileBox.setCurrentIndex(self.current_profile_index)
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self.bookToolBar.fontBox.currentFontChanged.connect(self.modify_font)
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self.bookToolBar.fontSizeBox.currentTextChanged.connect(self.modify_font)
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self.bookToolBar.lineSpacingUp.triggered.connect(self.modify_font)
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self.bookToolBar.lineSpacingDown.triggered.connect(self.modify_font)
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self.bookToolBar.paddingUp.triggered.connect(self.modify_font)
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self.bookToolBar.paddingDown.triggered.connect(self.modify_font)
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self.bookToolBar.colorBoxFG.clicked.connect(self.get_color)
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self.bookToolBar.colorBoxBG.clicked.connect(self.get_color)
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self.bookToolBar.tocBox.currentIndexChanged.connect(self.set_toc_position)
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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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# For fullscreening purposes
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self.current_contentView = None
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# Tab closing
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self.tabWidget.setTabsClosable(True)
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# TODO
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# It's possible to add a widget to the Library tab here
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self.tabWidget.tabBar().setTabButton(0, QtWidgets.QTabBar.RightSide, None)
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self.tabWidget.tabCloseRequested.connect(self.tab_close)
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# ListView
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self.listView.setGridSize(QtCore.QSize(175, 240))
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self.listView.setMouseTracking(True)
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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.listView.setItemDelegate(LibraryDelegate(self.temp_dir.path()))
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self.lib_ref.generate_model('build')
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self.lib_ref.create_proxymodel()
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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.setContext(QtCore.Qt.ApplicationShortcut)
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self.exit_all.activated.connect(self.closeEvent)
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def resizeEvent(self, event=None):
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if event:
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# This implies a vertical resize event only
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# We ain't about that lifestyle
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if event.oldSize().width() == event.size().width():
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return
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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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# 12 is the scrollbar width
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# Larger numbers keep reduce flickering but also increase
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# the distance from the scrollbar
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space_left = (
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self.listView.viewport().width() - space_occupied - 19)
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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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# Generate list of available parsers
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my_file = QtWidgets.QFileDialog.getOpenFileNames(
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self, 'Open file', self.last_open_path,
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"eBooks (*.epub *.mobi *.aws *.txt *.pdf *.fb2 *.djvu *.cbz)")
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if my_file[0]:
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self.thread = BackGroundBookAddition(self, my_file[0], self.database_path)
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self.thread.finished.connect(self.lib_ref.create_proxymodel)
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self.thread.start()
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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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data = i.data(QtCore.Qt.UserRole + 3)
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selected_hashes.append(data['hash'])
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database.DatabaseFunctions(
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self.database_path).delete_from_database(selected_hashes)
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self.lib_ref.generate_model('build')
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self.lib_ref.create_proxymodel()
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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 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()).metadata
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current_title = current_metadata['title']
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current_author = current_metadata['author']
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current_position = current_metadata['position']
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current_toc = current_metadata['content'].keys()
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self.bookToolBar.tocBox.blockSignals(True)
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self.bookToolBar.tocBox.clear()
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self.bookToolBar.tocBox.addItems(current_toc)
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if current_position:
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self.bookToolBar.tocBox.setCurrentIndex(current_position['current_chapter'] - 1)
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self.bookToolBar.tocBox.blockSignals(False)
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self.format_contentView()
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self.statusMessage.setText(
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current_author + ' - ' + current_title)
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def tab_close(self, tab_index):
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tab_metadata = self.tabWidget.widget(tab_index).metadata
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self.thread = BackGroundTabUpdate(
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self.database_path, [tab_metadata])
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self.thread.start()
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self.tabWidget.removeTab(tab_index)
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def set_toc_position(self, event=None):
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chapter_name = self.bookToolBar.tocBox.currentText()
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current_tab = self.tabWidget.widget(self.tabWidget.currentIndex())
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required_content = current_tab.metadata['content'][chapter_name]
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# We're also updating the underlying model to have real-time
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# updates on the read status
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# Set a baseline model index in case the item gets deleted
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# E.g It's open in a tab and deleted from the library
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model_index = None
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start_index = self.viewModel.index(0, 0)
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# Find index of the model item that corresponds to the tab
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matching_item = self.viewModel.match(
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start_index,
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QtCore.Qt.UserRole + 6,
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current_tab.metadata['hash'],
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1, QtCore.Qt.MatchExactly)
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if matching_item:
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model_row = matching_item[0].row()
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model_index = self.viewModel.index(model_row, 0)
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current_tab.metadata[
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'position']['current_chapter'] = event + 1
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if model_index:
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self.viewModel.setData(
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model_index, current_tab.metadata['position'], QtCore.Qt.UserRole + 7)
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current_tab.contentView.verticalScrollBar().setValue(0)
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current_tab.contentView.setHtml(required_content)
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current_tab.contentView.setAlignment(QtCore.Qt.AlignCenter)
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def set_fullscreen(self):
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current_tab = self.tabWidget.currentIndex()
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current_tab_widget = self.tabWidget.widget(current_tab)
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self.current_contentView = current_tab_widget.findChildren(QtWidgets.QTextBrowser)[0]
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self.current_contentView.setWindowFlags(QtCore.Qt.Window)
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self.current_contentView.setWindowState(QtCore.Qt.WindowFullScreen)
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self.current_contentView.show()
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self.hide()
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def list_doubleclick(self, myindex):
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index = self.listView.model().index(myindex.row(), 0)
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file_exists = self.listView.model().data(index, QtCore.Qt.UserRole + 5)
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if not file_exists:
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return
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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_metadata = self.tabWidget.widget(i).metadata
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if tab_metadata['hash'] == metadata['hash']:
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self.tabWidget.setCurrentIndex(i)
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return
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path = metadata['path']
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contents = sorter.BookSorter(
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[path], 'reading', self.database_path, self.temp_dir.path()).initiate_threads()
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tab_ref = Tab(contents, self.tabWidget)
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self.tabWidget.setCurrentWidget(tab_ref)
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self.format_contentView()
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def get_color(self):
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signal_sender = self.sender().objectName()
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profile_index = self.bookToolBar.profileBox.currentIndex()
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current_profile = self.bookToolBar.profileBox.itemData(
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profile_index, QtCore.Qt.UserRole)
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colorDialog = QtWidgets.QColorDialog()
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new_color = colorDialog.getColor()
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if not new_color:
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return
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color_name = new_color.name()
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if signal_sender == 'fgColor':
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self.bookToolBar.colorBoxFG.setStyleSheet(
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'background-color: %s' % color_name)
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current_profile['foreground'] = color_name
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elif signal_sender == 'bgColor':
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self.bookToolBar.colorBoxBG.setStyleSheet(
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'background-color: %s' % color_name)
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current_profile['background'] = color_name
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self.bookToolBar.profileBox.setItemData(
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profile_index, current_profile, QtCore.Qt.UserRole)
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self.format_contentView()
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def modify_font(self):
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signal_sender = self.sender().objectName()
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profile_index = self.bookToolBar.profileBox.currentIndex()
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current_profile = self.bookToolBar.profileBox.itemData(
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profile_index, QtCore.Qt.UserRole)
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if signal_sender == 'fontBox':
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current_profile['font'] = self.bookToolBar.fontBox.currentFont().family()
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if signal_sender == 'fontSizeBox':
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old_size = current_profile['font_size']
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new_size = self.bookToolBar.fontSizeBox.currentText()
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if new_size.isdigit():
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current_profile['font_size'] = int(new_size)
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else:
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current_profile['font_size'] = old_size
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if signal_sender == 'lineSpacingUp':
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current_profile['line_spacing'] += .5
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if signal_sender == 'lineSpacingDown':
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current_profile['line_spacing'] -= .5
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if signal_sender == 'paddingUp':
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current_profile['padding'] += 5
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if signal_sender == 'paddingDown':
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current_profile['padding'] -= 5
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self.bookToolBar.profileBox.setItemData(
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profile_index, current_profile, QtCore.Qt.UserRole)
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self.format_contentView()
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def format_contentView(self):
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# TODO
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# Implement line spacing
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# See what happens if a font isn't installed
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profile_index = self.bookToolBar.profileBox.currentIndex()
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current_profile = self.bookToolBar.profileBox.itemData(
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profile_index, QtCore.Qt.UserRole)
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font = current_profile['font']
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foreground = current_profile['foreground']
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background = current_profile['background']
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padding = current_profile['padding']
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font_size = current_profile['font_size']
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# Change toolbar widgets to match new settings
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self.bookToolBar.fontBox.blockSignals(True)
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self.bookToolBar.fontSizeBox.blockSignals(True)
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self.bookToolBar.fontBox.setCurrentText(font)
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self.bookToolBar.fontSizeBox.setCurrentText(str(font_size))
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self.bookToolBar.fontBox.blockSignals(False)
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self.bookToolBar.fontSizeBox.blockSignals(False)
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self.bookToolBar.colorBoxFG.setStyleSheet(
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'background-color: %s' % foreground)
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self.bookToolBar.colorBoxBG.setStyleSheet(
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'background-color: %s' % background)
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# Do not run when only the library tab is open
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if self.tabWidget.count() == 1:
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return
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# Change contentView to match new settings
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current_tab = self.tabWidget.currentIndex()
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current_tab_widget = self.tabWidget.widget(current_tab)
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current_contentView = current_tab_widget.findChildren(QtWidgets.QTextBrowser)[0]
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# This allows for the scrollbar to always be at the edge of the screen
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current_contentView.setViewportMargins(padding, 0, padding, 0)
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current_contentView.setStyleSheet(
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"QTextEdit {{font-family: {0}; font-size: {1}px; color: {2}; background-color: {3}}}".format(
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font, font_size, foreground, background))
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def closeEvent(self, event=None):
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# All tabs must be iterated upon here
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self.temp_dir.remove()
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self.hide()
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if self.tabWidget.count() > 1:
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all_metadata = []
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for i in range(1, self.tabWidget.count()):
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tab_metadata = self.tabWidget.widget(i).metadata
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all_metadata.append(tab_metadata)
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self.thread = BackGroundTabUpdate(self.database_path, all_metadata)
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self.thread.finished.connect(QtWidgets.qApp.exit)
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self.thread.start()
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else:
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Settings(self).save_settings()
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QtWidgets.qApp.exit()
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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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form.resizeEvent()
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app.exec_()
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if __name__ == '__main__':
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main()
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