Python PyQt5.QtGui.QTextDocument() Examples

def heightForWidth(self, width):
        margins = self.contentsMargins()

        if width >= margins.left() + margins.right():
            document_width = width - margins.left() - margins.right()
        else:
            # If specified width can't even fit the margin, there's no space left for the document
            document_width = 0

        # Cloning the whole document only to check its size at different width seems wasteful
        # but apparently it's the only and preferred way to do this in Qt >= 4. QTextDocument does not
        # provide any means to get height for specified width (as some QWidget subclasses do).
        # Neither does QTextEdit. In Qt3 Q3TextEdit had working implementation of heightForWidth()
        # but it was allegedly just a hack and was removed.
        #
        # The performance probably won't be a problem here because the application is meant to
        # work with a lot of small notes rather than few big ones. And there's usually only one
        # editor that needs to be dynamically resized - the one having focus.
        document = self.document().clone()
        document.setTextWidth(document_width)

        return margins.top() + document.size().height() + margins.bottom() 

def test_highlighted(qtbot):
    """Make sure highlighting works.

    Note that with Qt 5.11.3 and > 5.12.1 we need to call setPlainText *after*
    creating the highlighter for highlighting to work. Ideally, we'd test
    whether CompletionItemDelegate._get_textdoc() works properly, but testing
    that is kind of hard, so we just test it in isolation here.
    """
    doc = QTextDocument()
    completiondelegate._Highlighter(doc, 'Hello', Qt.red)
    doc.setPlainText('Hello World')

    # Needed so the highlighting actually works.
    edit = QTextEdit()
    qtbot.addWidget(edit)
    edit.setDocument(doc)

    colors = [f.foreground().color() for f in doc.allFormats()]
    assert QColor('red') in colors 

def get_chapter_content(self, chapter_file):
        this_file = self.find_file(chapter_file)
        if this_file:
            chapter_content = self.zip_file.read(this_file).decode()

            # Generate a None return for a blank chapter
            # These will be removed from the contents later
            contentDocument = QtGui.QTextDocument(None)
            contentDocument.setHtml(chapter_content)
            contentText = contentDocument.toPlainText().replace('\n', '')
            if contentText == '':
                chapter_content = None

            return chapter_content
        else:
            return 'Possible parse error: ' + chapter_file 

def get_max_left_label_width(self):
        doc = QTextDocument(self)
        doc.setDocumentMargin(0)
        doc.setDefaultFont(self.lblOwnerKey.font())
        doc.setHtml('Test')

        def get_lbl_text_width(lbl):
            nonlocal doc
            doc.setHtml(lbl.text())
            return int(doc.size().width() + 5)

        w = max(get_lbl_text_width(self.lblName),
                get_lbl_text_width(self.lblIP),
                get_lbl_text_width(self.lblCollateral),
                get_lbl_text_width(self.lblCollateralTxHash),
                get_lbl_text_width(self.lblDMNTxHash),
                get_lbl_text_width(self.lblOwnerKey),
                get_lbl_text_width(self.lblOperatorKey),
                get_lbl_text_width(self.lblVotingKey))

        return w 

def paint(self, painter, option, index):
            options = QtWidgets.QStyleOptionViewItem(option)
            self.initStyleOption(options, index)

            style = QtGui.QApplication.style() if options.widget is None\
                else options.widget.style()

            doc = QtGui.QTextDocument()
            doc.setHtml(options.text)

            options.text = ""
            style.drawControl(QtGui.QStyle.CE_ItemViewItem, options, painter)

            ctx = QtGui.QAbstractTextDocumentLayout.PaintContext()

            textRect = style.subElementRect(
                QtGui.QStyle.SE_ItemViewItemText, options, options.widget)
            painter.save()
            painter.translate(textRect.topLeft())
            painter.setClipRect(textRect.translated(-textRect.topLeft()))
            doc.documentLayout().draw(painter, ctx)

            painter.restore() 

def setupUi(self):
        Ui_TransactionDlg.setupUi(self, self)
        self.setWindowTitle('Transaction')
        self.chb_word_wrap.setChecked(app_cache.get_value(CACHE_ITEM_DETAILS_WORD_WRAP, False, bool))
        self.apply_word_wrap(self.chb_word_wrap.isChecked())
        self.edt_recipients.viewport().setAutoFillBackground(False)

        if sys.platform == 'win32':
            self.base_font_size = '11'
            self.title_font_size = '15'
        elif sys.platform == 'linux':
            self.base_font_size = '11'
            self.title_font_size = '17'
        else:  # mac
            self.base_font_size = '13'
            self.title_font_size = '20'

        self.edt_raw_transaction.setStyleSheet(f'font: {self.base_font_size}pt "Courier New";')
        doc = QTextDocument(self)
        doc.setDocumentMargin(0)
        doc.setHtml(f'<span style=" font-size:{self.title_font_size}pt;white-space:nowrap">AAAAAAAAAAAAAAAAAA')
        self.edt_recipients.setStyle(ProxyStyleNoFocusRect())
        default_width = int(doc.size().width()) * 3
        default_height = int(default_width / 2)
        app_cache.restore_window_size(self, default_width=default_width, default_height=default_height)
        self.prepare_tx_view() 

def reload_java_sources(self):
        '''Reload completely the sources by asking Androguard
           to decompile it again. Useful when:
            - an element has been renamed to propagate the info
            - the current tab is changed because we do not know what user
              did since then, so we need to propagate previous changes as well
        '''

        androconf.debug("Getting sources for %s" % self.current_class)

        lines = []
        lines.append(("COMMENTS", [(
            "COMMENT", "// filename:%s\n// digest:%s\n\n" % (
                self.current_filename, self.current_digest))]))

        method_info_buff = ""
        for method in self.current_class.get_methods():
            method_info_buff += "// " + str(method) + "\n"

        lines.append(("COMMENTS", [(
            "COMMENT", method_info_buff + "\n\n")]))

        lines.extend(self.current_class.get_source_ext())

        #TODO: delete doc when tab is closed? not deleted by "self" :(
        if hasattr(self, "doc"):
            del self.doc
        self.doc = SourceDocument(parent=self, lines=lines)
        self.setDocument(self.doc)

        #No need to save hightlighter. highlighBlock will automatically be called
        #because we passed the QTextDocument to QSyntaxHighlighter constructor
        if PYGMENTS:
            MyHighlighter(self.doc, lexer=JavaLexer())
        else:
            androconf.debug("Pygments is not present !") 

def __init__(self, parent=None):
        super(TableDelegate, self).__init__(parent)
        self.doc = QTextDocument(self) 

def _linetool_annotate_point(self, point, idx):
        annotation = QgsTextAnnotation()

        c = QTextDocument()
        html = "<strong>" + str(idx) + "</strong>"
        c.setHtml(html)

        annotation.setDocument(c)

        annotation.setFrameSize(QSizeF(27, 20))
        annotation.setFrameOffsetFromReferencePoint(QPointF(5, 5))
        annotation.setMapPosition(point)
        annotation.setMapPositionCrs(self.map_crs)

        return QgsMapCanvasAnnotationItem(annotation, self._iface.mapCanvas()).annotation() 

def __init__(self, parent=None):
        super().__init__(parent)
        help_content = QTextDocument()
        help_content.setHtml(HELP_CONTENT)
        self.setOpenExternalLinks(True)
        self.setDocument(help_content) 

def sizeHint(self, option, index):
            options = QtWidgets.QStyleOptionViewItem(option)
            self.initStyleOption(options, index)

            doc = QtGui.QTextDocument()
            doc.setHtml(options.text)
            doc.setTextWidth(options.rect.width())

            return QtCore.QSize(doc.idealWidth(), doc.size().height()) 

def init_print(self, linenos=True, style="default"):
        app = QApplication([])  # noqa
        doc = QTextDocument()
        doc.setHtml(
            self.highlight_file(linenos=linenos, style=style)
        )
        printer = QPrinter()
        printer.setOutputFileName(self.pdf_file)
        printer.setOutputFormat(QPrinter.PdfFormat)
        page_size_dict = {"a2": QPrinter.A2, "a3": QPrinter.A3, "a4": QPrinter.A4, "letter": QPrinter.Letter}
        printer.setPageSize(page_size_dict.get(self.size.lower(), QPrinter.A4))
        printer.setPageMargins(15, 15, 15, 15, QPrinter.Millimeter)
        doc.print_(printer)
        logging.info("PDF created at %s" % (self.pdf_file)) 

def generate_position(self, is_read=False):
        total_chapters = len(self.metadata['content'])

        current_chapter = 1
        if is_read:
            current_chapter = total_chapters

        # Generate block count @ time of first read
        # Blocks are indexed from 0 up
        blocks_per_chapter = []
        total_blocks = 0

        if not self.are_we_doing_images_only:
            for i in self.metadata['content']:
                textDocument = QtGui.QTextDocument(None)
                textDocument.setHtml(i)
                block_count = textDocument.blockCount()

                blocks_per_chapter.append(block_count)
                total_blocks += block_count

        self.metadata['position'] = {
            'current_chapter': current_chapter,
            'total_chapters': total_chapters,
            'blocks_per_chapter': blocks_per_chapter,
            'total_blocks': total_blocks,
            'is_read': is_read,
            'current_block': 0,
            'cursor_position': 0} 

def test_highlight(pat, txt, segments):
    doc = QTextDocument(txt)
    highlighter = completiondelegate._Highlighter(doc, pat, Qt.red)
    highlighter.setFormat = mock.Mock()
    highlighter.highlightBlock(txt)
    highlighter.setFormat.assert_has_calls([
        mock.call(s[0], s[1], mock.ANY) for s in segments
    ]) 

def reload_java_sources(self):
        """Reload completely the sources by asking Androguard
           to decompile it again. Useful when:
            - an element has been renamed to propagate the info
            - the current tab is changed because we do not know what user
              did since then, so we need to propagate previous changes as well
        """

        log.debug("Getting sources for %s" % self.current_class)

        lines = [("COMMENTS", [(
            "COMMENT", "// filename:%s\n// digest:%s\n\n" % (
                self.current_filename, self.current_digest))])]

        method_info_buff = ""
        for method in self.current_class.get_methods():
            method_info_buff += "// " + str(method) + "\n"

        lines.append(("COMMENTS", [(
            "COMMENT", method_info_buff + "\n\n")]))

        lines.extend(self.current_class.get_source_ext())

        # TODO: delete doc when tab is closed? not deleted by "self" :(
        if hasattr(self, "doc"):
            del self.doc
        self.doc = SourceDocument(parent=self, lines=lines)
        self.setDocument(self.doc)

        # No need to save hightlighter. highlighBlock will automatically be called
        # because we passed the QTextDocument to QSyntaxHighlighter constructor
        MyHighlighter(self.doc, lexer=JavaLexer()) 

def __init__(self, parent=None):
            super().__init__()
            self.doc = Qg.QTextDocument(self) 

def initUI(self):
        self.documento = QTextDocument()

      # =================== WIDGETS QPUSHBUTTON ==================

        buttonBuscar = QPushButton("Buscar usuarios", self)
        buttonBuscar.setFixedSize(426, 26)
        buttonBuscar.move(20, 20)

        buttonLimpiar = QPushButton("Limpiar tabla", self)
        buttonLimpiar.setFixedSize(140, 26)
        buttonLimpiar.move(452, 20)

      # =================== WIDGET QTREEWIDGET ===================

        self.treeWidgetUsuarios = QTreeWidget(self)

        self.treeWidgetUsuarios.setFont(QFont(self.treeWidgetUsuarios.font().family(), 10, False))
        self.treeWidgetUsuarios.setRootIsDecorated(False)
        self.treeWidgetUsuarios.setHeaderLabels(("D.N.I", "NOMBRE", "APELLIDO", "FECHA DE NACIMIENTO"))

        self.model = self.treeWidgetUsuarios.model()

        for indice, ancho in enumerate((110, 150, 150, 160), start=0):
            self.model.setHeaderData(indice, Qt.Horizontal, Qt.AlignCenter, Qt.TextAlignmentRole)
            self.treeWidgetUsuarios.setColumnWidth(indice, ancho)
        
        self.treeWidgetUsuarios.setAlternatingRowColors(True)

        self.treeWidgetUsuarios.setFixedSize(572, 300)
        self.treeWidgetUsuarios.move(20, 56)

      # =================== WIDGETS QPUSHBUTTON ==================

        buttonVistaPrevia = QPushButton("Vista previa", self)
        buttonVistaPrevia.setFixedSize(140, 26)
        buttonVistaPrevia.move(156, 364)

        buttonImprimir = QPushButton("Imprimir", self)
        buttonImprimir.setFixedSize(140, 26)
        buttonImprimir.move(304, 364)

        buttonExportarPDF = QPushButton("Exportar a PDF", self)
        buttonExportarPDF.setFixedSize(140, 26)
        buttonExportarPDF.move(452, 364)

      # =================== EVENTOS QPUSHBUTTON ==================

        buttonBuscar.clicked.connect(self.Buscar)
        buttonLimpiar.clicked.connect(self.limpiarTabla)
        
        buttonVistaPrevia.clicked.connect(self.vistaPrevia)
        buttonImprimir.clicked.connect(self.Imprimir)
        buttonExportarPDF.clicked.connect(self.exportarPDF)

  # ======================= FUNCIONES ============================