316 lines
12 KiB
Python
316 lines
12 KiB
Python
# This file is a part of Lector, a Qt based ebook reader
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# Copyright (C) 2017-2019 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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import logging
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from PyQt5 import QtWidgets, QtCore, QtGui
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from lector.resources import annotationswindow
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logger = logging.getLogger(__name__)
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class AnnotationsUI(QtWidgets.QDialog, annotationswindow.Ui_Dialog):
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def __init__(self, parent=None):
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super(AnnotationsUI, self).__init__()
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self.setupUi(self)
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self.parent = parent
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self._translate = QtCore.QCoreApplication.translate
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# Current annotation
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self.modelIndex = None # The index of the annotations list model in the parent dialog
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self.current_annotation = {}
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# Populate annotation type
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textmarkup_string = self._translate('AnnotationsUI', 'Text markup')
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all_types = [textmarkup_string]
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for i in all_types:
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self.typeBox.addItem(i)
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# Init defaults
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self.default_stylesheet = self.foregroundCheck.styleSheet()
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self.foregroundColor = QtGui.QColor.fromRgb(0, 0, 0)
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self.underlineColor = QtGui.QColor.fromRgb(255, 0, 0)
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self.highlightColor = QtGui.QColor.fromRgb(66, 209, 56)
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self.underline_styles = {
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'Solid': QtGui.QTextCharFormat.SingleUnderline,
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'Dashes': QtGui.QTextCharFormat.DashUnderline,
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'Dots': QtGui.QTextCharFormat.DotLine,
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'Wavy': QtGui.QTextCharFormat.WaveUnderline}
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# Push buttons
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self.foregroundColorButton.clicked.connect(self.modify_annotation)
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self.highlightColorButton.clicked.connect(self.modify_annotation)
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self.underlineColorButton.clicked.connect(self.modify_annotation)
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self.okButton.clicked.connect(self.ok_pressed)
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self.cancelButton.clicked.connect(self.hide)
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# Underline combo box
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underline_items = ['Solid', 'Dashes', 'Dots', 'Wavy']
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self.underlineType.addItems(underline_items)
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self.underlineType.currentIndexChanged.connect(self.modify_annotation)
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# Text markup related checkboxes
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self.foregroundCheck.clicked.connect(self.modify_annotation)
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self.highlightCheck.clicked.connect(self.modify_annotation)
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self.boldCheck.clicked.connect(self.modify_annotation)
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self.italicCheck.clicked.connect(self.modify_annotation)
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self.underlineCheck.clicked.connect(self.modify_annotation)
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def show_dialog(self, mode, index=None):
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# TODO
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# Account for annotation type here
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# and point to a relevant set of widgets accordingly
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if mode == 'edit' or mode == 'preview':
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self.modelIndex = index
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this_annotation = self.parent.annotationModel.data(
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index, QtCore.Qt.UserRole)
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annotation_name = this_annotation['name']
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self.nameEdit.setText(annotation_name)
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annotation_components = this_annotation['components']
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if 'foregroundColor' in annotation_components:
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self.foregroundCheck.setChecked(True)
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self.set_button_background_color(
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self.foregroundColorButton, annotation_components['foregroundColor'])
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else:
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self.foregroundCheck.setChecked(False)
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if 'highlightColor' in annotation_components:
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self.highlightCheck.setChecked(True)
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self.set_button_background_color(
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self.highlightColorButton, annotation_components['highlightColor'])
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else:
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self.highlightCheck.setChecked(False)
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if 'bold' in annotation_components:
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self.boldCheck.setChecked(True)
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else:
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self.boldCheck.setChecked(False)
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if 'italic' in annotation_components:
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self.italicCheck.setChecked(True)
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else:
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self.italicCheck.setChecked(False)
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if 'underline' in annotation_components:
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self.underlineCheck.setChecked(True)
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underline_params = annotation_components['underline']
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self.underlineType.setCurrentText(underline_params[0])
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self.set_button_background_color(
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self.underlineColorButton, underline_params[1])
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else:
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self.underlineCheck.setChecked(False)
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elif mode == 'add':
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new_annotation_string = self._translate('AnnotationsUI', 'New annotation')
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self.nameEdit.setText(new_annotation_string)
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all_checkboxes = (
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self.foregroundCheck, self.highlightCheck,
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self.boldCheck, self.italicCheck, self.underlineCheck)
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for i in all_checkboxes:
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i.setChecked(False)
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self.modelIndex = None
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self.set_button_background_color(
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self.foregroundColorButton, self.foregroundColor)
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self.set_button_background_color(
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self.highlightColorButton, self.highlightColor)
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self.set_button_background_color(
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self.underlineColorButton, self.underlineColor)
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self.update_preview()
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if mode != 'preview':
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self.show()
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def set_button_background_color(self, button, color):
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button.setStyleSheet(
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"QPushButton {{background-color: {0}}}".format(color.name()))
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def update_preview(self):
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cursor = self.parent.previewView.textCursor()
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cursor.setPosition(0)
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cursor.movePosition(QtGui.QTextCursor.End, QtGui.QTextCursor.KeepAnchor)
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# TODO
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# Other kinds of text markup
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previewCharFormat = QtGui.QTextCharFormat()
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if self.foregroundCheck.isChecked():
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previewCharFormat.setForeground(self.foregroundColor)
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highlight = QtCore.Qt.transparent
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if self.highlightCheck.isChecked():
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highlight = self.highlightColor
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previewCharFormat.setBackground(highlight)
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font_weight = QtGui.QFont.Normal
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if self.boldCheck.isChecked():
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font_weight = QtGui.QFont.Bold
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previewCharFormat.setFontWeight(font_weight)
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if self.italicCheck.isChecked():
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previewCharFormat.setFontItalic(True)
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if self.underlineCheck.isChecked():
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previewCharFormat.setFontUnderline(True)
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previewCharFormat.setUnderlineColor(self.underlineColor)
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previewCharFormat.setUnderlineStyle(
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self.underline_styles[self.underlineType.currentText()])
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previewCharFormat.setFontStyleStrategy(
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QtGui.QFont.PreferAntialias)
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cursor.setCharFormat(previewCharFormat)
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cursor.clearSelection()
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self.parent.previewView.setTextCursor(cursor)
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def modify_annotation(self):
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sender = self.sender()
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if isinstance(sender, QtWidgets.QCheckBox):
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if not sender.isChecked():
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self.update_preview()
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return
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new_color = None
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if sender == self.foregroundColorButton:
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new_color = self.get_color(self.foregroundColor)
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self.foregroundColor = new_color
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if sender == self.highlightColorButton:
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new_color = self.get_color(self.highlightColor)
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self.highlightColor = new_color
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if sender == self.underlineColorButton:
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new_color = self.get_color(self.underlineColor)
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self.underlineColor = new_color
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if new_color:
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self.set_button_background_color(sender, new_color)
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self.update_preview()
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def get_color(self, current_color):
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color_dialog = QtWidgets.QColorDialog()
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new_color = color_dialog.getColor(current_color)
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if new_color.isValid(): # Returned in case cancel is pressed
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return new_color
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else:
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return current_color
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def ok_pressed(self):
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annotation_name = self.nameEdit.text()
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if annotation_name == '':
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self.nameEdit.setText('Why do you like bugs? WHY?')
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return
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annotation_components = {}
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if self.foregroundCheck.isChecked():
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annotation_components['foregroundColor'] = self.foregroundColor
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if self.highlightCheck.isChecked():
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annotation_components['highlightColor'] = self.highlightColor
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if self.boldCheck.isChecked():
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annotation_components['bold'] = True
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if self.italicCheck.isChecked():
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annotation_components['italic'] = True
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if self.underlineCheck.isChecked():
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annotation_components['underline'] = (
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self.underlineType.currentText(), self.underlineColor)
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self.current_annotation = {
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'name': annotation_name,
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'applicable_to': 'text',
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'type': 'text_markup',
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'components': annotation_components}
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if self.modelIndex:
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self.parent.annotationModel.setData(
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self.modelIndex, annotation_name, QtCore.Qt.DisplayRole)
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self.parent.annotationModel.setData(
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self.modelIndex, self.current_annotation, QtCore.Qt.UserRole)
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else: # New annotation
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new_annotation_item = QtGui.QStandardItem()
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new_annotation_item.setText(annotation_name)
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new_annotation_item.setData(self.current_annotation, QtCore.Qt.UserRole)
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self.parent.annotationModel.appendRow(new_annotation_item)
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self.hide()
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class AnnotationPlacement:
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def __init__(self):
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self.annotation_type = None
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self.annotation_components = None
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self.underline_styles = {
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'Solid': QtGui.QTextCharFormat.SingleUnderline,
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'Dashes': QtGui.QTextCharFormat.DashUnderline,
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'Dots': QtGui.QTextCharFormat.DotLine,
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'Wavy': QtGui.QTextCharFormat.WaveUnderline}
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def set_current_annotation(self, annotation_type, annotation_components):
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# Components expected to be a dictionary
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self.annotation_type = annotation_type # This is currently unused
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self.annotation_components = annotation_components
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def format_text(self, cursor, start_here, end_here):
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# This is applicable only to the PliantQTextBrowser
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# for the text_markup style of annotation
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# The cursor is the textCursor of the QTextEdit
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# containing the text that has to be modified
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if not self.annotation_components:
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return
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cursor.setPosition(start_here)
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cursor.setPosition(end_here, QtGui.QTextCursor.KeepAnchor)
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newCharFormat = QtGui.QTextCharFormat()
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if 'foregroundColor' in self.annotation_components:
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newCharFormat.setForeground(
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self.annotation_components['foregroundColor'])
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if 'highlightColor' in self.annotation_components:
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newCharFormat.setBackground(
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self.annotation_components['highlightColor'])
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if 'bold' in self.annotation_components:
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newCharFormat.setFontWeight(QtGui.QFont.Bold)
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if 'italic' in self.annotation_components:
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newCharFormat.setFontItalic(True)
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if 'underline' in self.annotation_components:
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newCharFormat.setFontUnderline(True)
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newCharFormat.setUnderlineStyle(
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self.underline_styles[self.annotation_components['underline'][0]])
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newCharFormat.setUnderlineColor(
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self.annotation_components['underline'][1])
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newCharFormat.setFontStyleStrategy(
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QtGui.QFont.PreferAntialias)
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cursor.setCharFormat(newCharFormat)
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cursor.clearSelection()
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return cursor
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