620 lines
24 KiB
Python
620 lines
24 KiB
Python
# This file is a part of Lector, a Qt based ebook reader
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# Copyright (C) 2017-2018 BasioMeusPuga
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# TODO
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# Reading modes
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# Double page, Continuous etc
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# Especially for comics
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import os
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import uuid
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from PyQt5 import QtWidgets, QtGui, QtCore
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from lector.models import BookmarkProxyModel
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from lector.delegates import BookmarkDelegate
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from lector.sorter import resize_image
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from lector.contentwidgets import PliantQGraphicsView, PliantQTextBrowser
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class Tab(QtWidgets.QWidget):
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def __init__(self, metadata, main_window, parent=None):
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super(Tab, self).__init__(parent)
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self._translate = QtCore.QCoreApplication.translate
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self.setAttribute(QtCore.Qt.WA_DeleteOnClose)
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self.first_run = True
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self.main_window = main_window
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self.metadata = metadata # Save progress data into this dictionary
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self.are_we_doing_images_only = self.metadata['images_only']
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self.is_fullscreen = False
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self.masterLayout = QtWidgets.QHBoxLayout(self)
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self.masterLayout.setContentsMargins(0, 0, 0, 0)
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self.metadata['last_accessed'] = QtCore.QDateTime().currentDateTime()
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if self.metadata['position']:
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if self.metadata['position']['is_read']:
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self.generate_position(True)
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current_chapter = self.metadata['position']['current_chapter']
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else:
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self.generate_position()
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current_chapter = 1
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chapter_content = self.metadata['content'][current_chapter - 1][1]
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# The content display widget is, by default a QTextBrowser.
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# In case the incoming data is only images
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# such as in the case of comic book files,
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# we want a QGraphicsView widget doing all the heavy lifting
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# instead of a QTextBrowser
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if self.are_we_doing_images_only: # Boolean
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self.contentView = PliantQGraphicsView(
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self.metadata['path'], self.main_window, self)
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self.contentView.loadImage(chapter_content)
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else:
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self.contentView = PliantQTextBrowser(self.main_window, self)
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relative_path_root = os.path.join(
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self.main_window.temp_dir.path(), self.metadata['hash'])
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relative_paths = []
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for i in os.walk(relative_path_root):
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# TODO
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# Rename the .css files to something else here and keep
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# a record of them
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# Currently, I'm just removing them for the sake of simplicity
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for j in i[2]:
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file_extension = os.path.splitext(j)[1]
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if file_extension == '.css':
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file_path = os.path.join(i[0], j)
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os.remove(file_path)
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relative_paths.append(os.path.join(relative_path_root, i[0]))
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self.contentView.setSearchPaths(relative_paths)
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self.contentView.setOpenLinks(False) # TODO Change this when HTML navigation works
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self.contentView.setHtml(chapter_content)
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self.contentView.setReadOnly(True)
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self.hiddenButton = QtWidgets.QToolButton(self)
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self.hiddenButton.setVisible(False)
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self.hiddenButton.clicked.connect(self.set_cursor_position)
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self.hiddenButton.animateClick(50)
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# The following are common to both the text browser and
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# the graphics view
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self.contentView.setFrameShape(QtWidgets.QFrame.NoFrame)
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self.contentView.setObjectName('contentView')
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self.contentView.verticalScrollBar().setSingleStep(
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self.main_window.settings['scroll_speed'])
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if self.main_window.settings['hide_scrollbars']:
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self.contentView.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
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self.contentView.setVerticalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
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else:
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self.contentView.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAsNeeded)
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self.contentView.setVerticalScrollBarPolicy(QtCore.Qt.ScrollBarAsNeeded)
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# Create the annotations dock
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self.annotationDock = PliantDockWidget(self.main_window, 'annotations', self.contentView)
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self.annotationDock.setWindowTitle(self._translate('Tab', 'Annotations'))
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self.annotationDock.setFeatures(QtWidgets.QDockWidget.DockWidgetClosable)
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self.annotationDock.hide()
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self.annotationListView = QtWidgets.QListView(self.annotationDock)
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self.annotationListView.setResizeMode(QtWidgets.QListWidget.Adjust)
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self.annotationListView.setMaximumWidth(350)
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self.annotationListView.doubleClicked.connect(self.contentView.toggle_annotation_mode)
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self.annotationListView.setEditTriggers(QtWidgets.QListView.NoEditTriggers)
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self.annotationDock.setWidget(self.annotationListView)
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self.annotationModel = QtGui.QStandardItemModel(self)
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self.generate_annotation_model()
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# See bookmark availability
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if not self.metadata['bookmarks']:
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self.metadata['bookmarks'] = {}
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# Create the dock widget for context specific display
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self.bookmarkDock = PliantDockWidget(self.main_window, 'bookmarks', self.contentView)
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self.bookmarkDock.setWindowTitle(self._translate('Tab', 'Bookmarks'))
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self.bookmarkDock.setFeatures(QtWidgets.QDockWidget.DockWidgetClosable)
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self.bookmarkDock.hide()
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self.bookmarkListView = QtWidgets.QListView(self.bookmarkDock)
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self.bookmarkListView.setResizeMode(QtWidgets.QListWidget.Adjust)
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self.bookmarkListView.setMaximumWidth(350)
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self.bookmarkListView.setItemDelegate(
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BookmarkDelegate(self.main_window, self.bookmarkListView))
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self.bookmarkListView.setUniformItemSizes(True)
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self.bookmarkListView.setContextMenuPolicy(QtCore.Qt.CustomContextMenu)
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self.bookmarkListView.customContextMenuRequested.connect(
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self.generate_bookmark_context_menu)
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self.bookmarkListView.clicked.connect(self.navigate_to_bookmark)
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self.bookmarkDock.setWidget(self.bookmarkListView)
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self.bookmarkModel = QtGui.QStandardItemModel(self)
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self.bookmarkProxyModel = BookmarkProxyModel(self)
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self.generate_bookmark_model()
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self.generate_keyboard_shortcuts()
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self.masterLayout.addWidget(self.contentView)
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self.masterLayout.addWidget(self.annotationDock)
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self.masterLayout.addWidget(self.bookmarkDock)
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# The following has to be after the docks are added to the layout
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self.annotationDock.setFloating(True)
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self.annotationDock.setWindowOpacity(.95)
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self.bookmarkDock.setFloating(True)
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self.bookmarkDock.setWindowOpacity(.95)
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title = self.metadata['title']
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self.main_window.tabWidget.addTab(self, title)
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this_tab_index = self.main_window.tabWidget.indexOf(self)
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cover_icon = QtGui.QPixmap()
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cover_icon.loadFromData(self.metadata['cover'])
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self.main_window.tabWidget.setTabIcon(
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this_tab_index, QtGui.QIcon(cover_icon))
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# Hide mouse cursor timer
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self.mouse_hide_timer = QtCore.QTimer()
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self.mouse_hide_timer.setSingleShot(True)
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self.mouse_hide_timer.timeout.connect(self.hide_mouse)
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# Hide the tab bar in case distraction free mode is active
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if not self.main_window.settings['show_bars']:
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self.main_window.tabWidget.tabBar().setVisible(False)
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self.contentView.setFocus()
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def update_last_accessed_time(self):
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self.metadata['last_accessed'] = QtCore.QDateTime().currentDateTime()
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start_index = self.main_window.lib_ref.libraryModel.index(0, 0)
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matching_item = self.main_window.lib_ref.libraryModel.match(
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start_index,
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QtCore.Qt.UserRole + 6,
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self.metadata['hash'],
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1, QtCore.Qt.MatchExactly)
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try:
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self.main_window.lib_ref.libraryModel.setData(
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matching_item[0], self.metadata['last_accessed'], QtCore.Qt.UserRole + 12)
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except IndexError: # The file has been deleted
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pass
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def set_cursor_position(self, cursor_position=None):
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try:
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required_position = self.metadata['position']['cursor_position']
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except KeyError:
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print(f'Database: Cursor position error. Recommend retry.')
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return
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if cursor_position:
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required_position = cursor_position
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# This is needed so that the line we want is
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# always at the top of the window
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self.contentView.verticalScrollBar().setValue(
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self.contentView.verticalScrollBar().maximum())
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# textCursor() RETURNS a copy of the textcursor
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cursor = self.contentView.textCursor()
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cursor.setPosition(
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required_position, QtGui.QTextCursor.MoveAnchor)
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self.contentView.setTextCursor(cursor)
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self.contentView.ensureCursorVisible()
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def generate_position(self, is_read=False):
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total_chapters = len(self.metadata['content'])
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current_chapter = 1
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if is_read:
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current_chapter = total_chapters
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# Generate block count @ time of first read
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# Blocks are indexed from 0 up
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blocks_per_chapter = []
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total_blocks = 0
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if not self.are_we_doing_images_only:
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for i in self.metadata['content']:
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chapter_html = i[1]
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textDocument = QtGui.QTextDocument(None)
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textDocument.setHtml(chapter_html)
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block_count = textDocument.blockCount()
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blocks_per_chapter.append(block_count)
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total_blocks += block_count
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self.metadata['position'] = {
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'current_chapter': current_chapter,
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'total_chapters': total_chapters,
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'blocks_per_chapter': blocks_per_chapter,
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'total_blocks': total_blocks,
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'is_read': is_read,
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'current_block': 0,
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'cursor_position': 0}
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def generate_keyboard_shortcuts(self):
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self.ksNextChapter = QtWidgets.QShortcut(
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QtGui.QKeySequence('Right'), self.contentView)
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self.ksNextChapter.setObjectName('nextChapter')
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self.ksNextChapter.activated.connect(self.sneaky_change)
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self.ksPrevChapter = QtWidgets.QShortcut(
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QtGui.QKeySequence('Left'), self.contentView)
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self.ksPrevChapter.setObjectName('prevChapter')
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self.ksPrevChapter.activated.connect(self.sneaky_change)
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self.ksGoFullscreen = QtWidgets.QShortcut(
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QtGui.QKeySequence('F11'), self.contentView)
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self.ksGoFullscreen.activated.connect(self.go_fullscreen)
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self.ksExitFullscreen = QtWidgets.QShortcut(
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QtGui.QKeySequence('Escape'), self.contentView)
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self.ksExitFullscreen.setContext(QtCore.Qt.ApplicationShortcut)
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self.ksExitFullscreen.activated.connect(self.exit_fullscreen)
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self.ksToggleBookMarks = QtWidgets.QShortcut(
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QtGui.QKeySequence('Ctrl+B'), self.contentView)
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self.ksToggleBookMarks.activated.connect(self.toggle_bookmarks)
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def go_fullscreen(self):
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if self.contentView.windowState() == QtCore.Qt.WindowFullScreen:
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self.exit_fullscreen()
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return
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if not self.are_we_doing_images_only:
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self.contentView.record_position()
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self.contentView.setWindowFlags(QtCore.Qt.Window)
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self.contentView.setWindowState(QtCore.Qt.WindowFullScreen)
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self.contentView.show()
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self.main_window.hide()
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if not self.are_we_doing_images_only:
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self.hiddenButton.animateClick(100)
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self.is_fullscreen = True
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def exit_fullscreen(self):
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if self.bookmarkDock.isVisible():
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self.bookmarkDock.setVisible(False)
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return
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if not self.are_we_doing_images_only:
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self.contentView.record_position()
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self.main_window.show()
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self.contentView.setWindowFlags(QtCore.Qt.Widget)
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self.contentView.setWindowState(QtCore.Qt.WindowNoState)
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self.contentView.show()
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self.is_fullscreen = False
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if not self.are_we_doing_images_only:
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self.hiddenButton.animateClick(100)
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# Hide the view modification buttons in case they're visible
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self.main_window.bookToolBar.customize_view_off()
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# Exit distraction free mode too
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if not self.main_window.settings['show_bars']:
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self.main_window.toggle_distraction_free()
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self.contentView.setFocus()
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def change_chapter_tocBox(self):
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chapter_number = self.main_window.bookToolBar.tocBox.currentIndex()
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required_content = self.metadata['content'][chapter_number][1]
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if self.are_we_doing_images_only:
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self.contentView.loadImage(required_content)
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else:
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self.contentView.clear()
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self.contentView.setHtml(required_content)
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def format_view(self, font, font_size, foreground,
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background, padding, line_spacing,
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text_alignment):
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if self.are_we_doing_images_only:
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# Tab color does not need to be set separately in case
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# no padding is set for the viewport of a QGraphicsView
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# and image resizing in done in the pixmap
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my_qbrush = QtGui.QBrush(QtCore.Qt.SolidPattern)
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my_qbrush.setColor(background)
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self.contentView.setBackgroundBrush(my_qbrush)
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self.contentView.resizeEvent()
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else:
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self.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.name(), background.name()))
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# Line spacing
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# Set line spacing per a block format
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# This is proportional line spacing so assume a divisor of 100
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block_format = QtGui.QTextBlockFormat()
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block_format.setLineHeight(
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line_spacing, QtGui.QTextBlockFormat.ProportionalHeight)
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block_format.setTextIndent(50)
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# Give options for alignment
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alignment_dict = {
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'left': QtCore.Qt.AlignLeft,
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'right': QtCore.Qt.AlignRight,
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'center': QtCore.Qt.AlignCenter,
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'justify': QtCore.Qt.AlignJustify}
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current_index = self.main_window.bookToolBar.tocBox.currentIndex()
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if current_index == 0:
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block_format.setAlignment(QtCore.Qt.AlignVCenter | QtCore.Qt.AlignHCenter)
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else:
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block_format.setAlignment(alignment_dict[text_alignment])
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# Also for padding
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# Using setViewPortMargins for this disables scrolling in the margins
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block_format.setLeftMargin(padding)
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block_format.setRightMargin(padding)
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this_cursor = self.contentView.textCursor()
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this_cursor.movePosition(QtGui.QTextCursor.Start, 0, 1)
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# Iterate over the entire document block by block
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# The document ends when the cursor position can no longer be incremented
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while True:
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old_position = this_cursor.position()
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this_cursor.mergeBlockFormat(block_format)
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this_cursor.movePosition(QtGui.QTextCursor.NextBlock, 0, 1)
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new_position = this_cursor.position()
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if old_position == new_position:
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break
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def toggle_annotations(self):
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if self.annotationDock.isVisible():
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self.annotationDock.hide()
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else:
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self.annotationDock.show()
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def generate_annotation_model(self):
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saved_annotations = self.main_window.settings['annotations']
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if not saved_annotations:
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return
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for i in saved_annotations:
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item = QtGui.QStandardItem()
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item.setText(i['name'])
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item.setData(i, QtCore.Qt.UserRole)
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self.annotationModel.appendRow(item)
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self.annotationListView.setModel(self.annotationModel)
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def toggle_bookmarks(self):
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if self.bookmarkDock.isVisible():
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self.bookmarkDock.hide()
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else:
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self.bookmarkDock.show()
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def add_bookmark(self):
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# TODO
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# Start dockListView.edit(index) when something new is added
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identifier = uuid.uuid4().hex[:10]
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description = self._translate('Tab', 'New bookmark')
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if self.are_we_doing_images_only:
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chapter = self.metadata['position']['current_chapter']
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cursor_position = 0
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else:
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chapter, cursor_position = self.contentView.record_position(True)
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self.metadata['bookmarks'][identifier] = {
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'chapter': chapter,
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'cursor_position': cursor_position,
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'description': description}
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self.add_bookmark_to_model(
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description, chapter, cursor_position, identifier)
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self.bookmarkDock.setVisible(True)
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def add_bookmark_to_model(self, description, chapter, cursor_position, identifier):
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bookmark = QtGui.QStandardItem()
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bookmark.setData(description, QtCore.Qt.DisplayRole)
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bookmark.setData(chapter, QtCore.Qt.UserRole)
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bookmark.setData(cursor_position, QtCore.Qt.UserRole + 1)
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bookmark.setData(identifier, QtCore.Qt.UserRole + 2)
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self.bookmarkModel.appendRow(bookmark)
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self.update_bookmark_proxy_model()
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def navigate_to_bookmark(self, index):
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if not index.isValid():
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return
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chapter = self.bookmarkProxyModel.data(index, QtCore.Qt.UserRole)
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cursor_position = self.bookmarkProxyModel.data(index, QtCore.Qt.UserRole + 1)
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self.main_window.bookToolBar.tocBox.setCurrentIndex(chapter - 1)
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if not self.are_we_doing_images_only:
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self.set_cursor_position(cursor_position)
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def generate_bookmark_model(self):
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# TODO
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# Sorting is not working correctly
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try:
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for i in self.metadata['bookmarks'].items():
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self.add_bookmark_to_model(
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i[1]['description'],
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i[1]['chapter'],
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i[1]['cursor_position'],
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i[0])
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except KeyError:
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title = self.metadata['title']
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# TODO
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# Delete the bookmarks entry for this file
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print(f'Database: Bookmark error for {title}. Recommend delete entry.')
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return
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self.generate_bookmark_proxy_model()
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def generate_bookmark_proxy_model(self):
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self.bookmarkProxyModel.setSourceModel(self.bookmarkModel)
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|
self.bookmarkProxyModel.setSortCaseSensitivity(False)
|
|
self.bookmarkProxyModel.setSortRole(QtCore.Qt.UserRole)
|
|
self.bookmarkListView.setModel(self.bookmarkProxyModel)
|
|
|
|
def update_bookmark_proxy_model(self):
|
|
self.bookmarkProxyModel.invalidateFilter()
|
|
self.bookmarkProxyModel.setFilterParams(
|
|
self.main_window.bookToolBar.searchBar.text())
|
|
self.bookmarkProxyModel.setFilterFixedString(
|
|
self.main_window.bookToolBar.searchBar.text())
|
|
|
|
def generate_bookmark_context_menu(self, position):
|
|
index = self.bookmarkListView.indexAt(position)
|
|
if not index.isValid():
|
|
return
|
|
|
|
bookmarkMenu = QtWidgets.QMenu()
|
|
editAction = bookmarkMenu.addAction(
|
|
self.main_window.QImageFactory.get_image('edit-rename'),
|
|
self._translate('Tab', 'Edit'))
|
|
deleteAction = bookmarkMenu.addAction(
|
|
self.main_window.QImageFactory.get_image('trash-empty'),
|
|
self._translate('Tab', 'Delete'))
|
|
|
|
action = bookmarkMenu.exec_(
|
|
self.bookmarkListView.mapToGlobal(position))
|
|
|
|
if action == editAction:
|
|
self.bookmarkListView.edit(index)
|
|
|
|
if action == deleteAction:
|
|
row = index.row()
|
|
delete_uuid = self.bookmarkModel.item(row).data(QtCore.Qt.UserRole + 2)
|
|
|
|
self.metadata['bookmarks'].pop(delete_uuid)
|
|
self.bookmarkModel.removeRow(index.row())
|
|
|
|
def hide_mouse(self):
|
|
self.contentView.viewport().setCursor(QtCore.Qt.BlankCursor)
|
|
|
|
def sneaky_change(self):
|
|
direction = -1
|
|
if self.sender().objectName() == 'nextChapter':
|
|
direction = 1
|
|
|
|
self.contentView.common_functions.change_chapter(
|
|
direction, True)
|
|
|
|
def sneaky_exit(self):
|
|
self.contentView.hide()
|
|
self.main_window.closeEvent()
|
|
|
|
|
|
class PliantDockWidget(QtWidgets.QDockWidget):
|
|
def __init__(self, main_window, intended_for, contentView, parent=None):
|
|
super(PliantDockWidget, self).__init__()
|
|
self.main_window = main_window
|
|
self.intended_for = intended_for
|
|
self.contentView = contentView
|
|
|
|
def showEvent(self, event):
|
|
viewport_height = self.contentView.viewport().size().height()
|
|
viewport_topRight = self.contentView.mapToGlobal(
|
|
self.contentView.viewport().rect().topRight())
|
|
viewport_topLeft = self.contentView.mapToGlobal(
|
|
self.contentView.viewport().rect().topLeft())
|
|
|
|
desktop_size = QtWidgets.QDesktopWidget().screenGeometry()
|
|
|
|
if self.intended_for == 'bookmarks':
|
|
dock_x = viewport_topRight.x() - dock_width + 1
|
|
dock_width = desktop_size.width() // 5.5
|
|
self.main_window.bookToolBar.bookmarkButton.setChecked(True)
|
|
|
|
elif self.intended_for == 'annotations':
|
|
dock_x = viewport_topLeft.x()
|
|
dock_width = desktop_size.width() // 10
|
|
self.main_window.bookToolBar.annotationButton.setChecked(True)
|
|
|
|
dock_y = viewport_topRight.y() + (viewport_height * .10)
|
|
dock_height = viewport_height * .80
|
|
|
|
self.main_window.active_bookmark_docks.append(self)
|
|
self.setGeometry(dock_x, dock_y, dock_width, dock_height)
|
|
|
|
def hideEvent(self, event=None):
|
|
if self.intended_for == 'bookmarks':
|
|
self.main_window.bookToolBar.bookmarkButton.setChecked(False)
|
|
elif self.intended_for == 'annotations':
|
|
self.main_window.bookToolBar.annotationButton.setChecked(False)
|
|
|
|
try:
|
|
self.main_window.active_bookmark_docks.remove(self)
|
|
except ValueError:
|
|
pass
|
|
|
|
def closeEvent(self, event):
|
|
self.hide()
|
|
event.ignore()
|
|
|
|
|
|
class PliantQGraphicsScene(QtWidgets.QGraphicsScene):
|
|
def __init__(self, parent=None):
|
|
super(PliantQGraphicsScene, self).__init__(parent)
|
|
self.parent = parent
|
|
self._translate = QtCore.QCoreApplication.translate
|
|
|
|
def mouseReleaseEvent(self, event):
|
|
self.parent.previous_position = self.parent.pos()
|
|
|
|
image_files = '*.jpg *.png'
|
|
dialog_prompt = self._translate('PliantQGraphicsScene', 'Select new cover')
|
|
images_string = self._translate('PliantQGraphicsScene', 'Images')
|
|
new_cover = QtWidgets.QFileDialog.getOpenFileName(
|
|
None, dialog_prompt, self.parent.parent.settings['last_open_path'],
|
|
f'{images_string} ({image_files})')[0]
|
|
|
|
if not new_cover:
|
|
self.parent.show()
|
|
return
|
|
|
|
with open(new_cover, 'rb') as cover_ref:
|
|
cover_bytes = cover_ref.read()
|
|
resized_cover = resize_image(cover_bytes)
|
|
self.parent.cover_for_database = resized_cover
|
|
|
|
cover_pixmap = QtGui.QPixmap()
|
|
cover_pixmap.load(new_cover)
|
|
cover_pixmap = cover_pixmap.scaled(
|
|
140, 205, QtCore.Qt.IgnoreAspectRatio)
|
|
|
|
self.parent.load_cover(cover_pixmap, True)
|
|
self.parent.show()
|