Python TextEdit.setTextCursor方法代码示例

# 需要导入模块: from calibre.gui2.tweak_book.editor.text import TextEdit [as 别名]
# 或者: from calibre.gui2.tweak_book.editor.text.TextEdit import setTextCursor [as 别名]
class Editor(QMainWindow):

    has_line_numbers = True

    modification_state_changed = pyqtSignal(object)
    undo_redo_state_changed = pyqtSignal(object, object)
    copy_available_state_changed = pyqtSignal(object)
    data_changed = pyqtSignal(object)
    cursor_position_changed = pyqtSignal()
    word_ignored = pyqtSignal(object, object)
    link_clicked = pyqtSignal(object)
    smart_highlighting_updated = pyqtSignal()

    def __init__(self, syntax, parent=None):
        QMainWindow.__init__(self, parent)
        if parent is None:
            self.setWindowFlags(Qt.Widget)
        self.is_synced_to_container = False
        self.syntax = syntax
        self.editor = TextEdit(self)
        self.editor.setContextMenuPolicy(Qt.CustomContextMenu)
        self.editor.customContextMenuRequested.connect(self.show_context_menu)
        self.setCentralWidget(self.editor)
        self.create_toolbars()
        self.undo_available = False
        self.redo_available = False
        self.copy_available = self.cut_available = False
        self.editor.modificationChanged.connect(self._modification_state_changed)
        self.editor.undoAvailable.connect(self._undo_available)
        self.editor.redoAvailable.connect(self._redo_available)
        self.editor.textChanged.connect(self._data_changed)
        self.editor.copyAvailable.connect(self._copy_available)
        self.editor.cursorPositionChanged.connect(self._cursor_position_changed)
        self.editor.link_clicked.connect(self.link_clicked)
        self.editor.smart_highlighting_updated.connect(self.smart_highlighting_updated)

    @dynamic_property
    def current_line(self):
        def fget(self):
            return self.editor.textCursor().blockNumber()

        def fset(self, val):
            self.editor.go_to_line(val)
        return property(fget=fget, fset=fset)

    @dynamic_property
    def current_editing_state(self):
        def fget(self):
            c = self.editor.textCursor()
            return {'cursor':(c.anchor(), c.position())}

        def fset(self, val):
            anchor, position = val.get('cursor', (None, None))
            if anchor is not None and position is not None:
                c = self.editor.textCursor()
                c.setPosition(anchor), c.setPosition(position, c.KeepAnchor)
                self.editor.setTextCursor(c)
        return property(fget=fget, fset=fset)

    def current_tag(self, for_position_sync=True):
        return self.editor.current_tag(for_position_sync=for_position_sync)

    @property
    def number_of_lines(self):
        return self.editor.blockCount()

    @dynamic_property
    def data(self):
        def fget(self):
            ans = self.get_raw_data()
            ans, changed = replace_encoding_declarations(ans, enc='utf-8', limit=4*1024)
            if changed:
                self.data = ans
            return ans.encode('utf-8')

        def fset(self, val):
            self.editor.load_text(val, syntax=self.syntax, doc_name=editor_name(self))
        return property(fget=fget, fset=fset)

    def init_from_template(self, template):
        self.editor.load_text(template, syntax=self.syntax, process_template=True, doc_name=editor_name(self))

    def change_document_name(self, newname):
        self.editor.change_document_name(newname)
        self.editor.completion_doc_name = newname

    def get_raw_data(self):
        # The EPUB spec requires NFC normalization, see section 1.3.6 of
        # http://www.idpf.org/epub/20/spec/OPS_2.0.1_draft.htm
        return unicodedata.normalize('NFC', unicode(self.editor.toPlainText()).rstrip('\0'))

    def replace_data(self, raw, only_if_different=True):
        if isinstance(raw, bytes):
            raw = raw.decode('utf-8')
        current = self.get_raw_data() if only_if_different else False
        if current != raw:
            self.editor.replace_text(raw)

    def apply_settings(self, prefs=None, dictionaries_changed=False):
        self.editor.apply_settings(prefs=None, dictionaries_changed=dictionaries_changed)
#.........这里部分代码省略.........

# 需要导入模块: from calibre.gui2.tweak_book.editor.text import TextEdit [as 别名]
# 或者: from calibre.gui2.tweak_book.editor.text.TextEdit import setTextCursor [as 别名]

#.........这里部分代码省略.........
    def copy(self):
        self.editor.copy()

    def go_to_line(self, line, col=None):
        self.editor.go_to_line(line, col=col)

    def paste(self):
        if not self.editor.canPaste():
            return error_dialog(self, _('No text'), _(
                'There is no suitable text in the clipboard to paste.'), show=True)
        self.editor.paste()

    def contextMenuEvent(self, ev):
        ev.ignore()

    def fix_html(self):
        if self.syntax == 'html':
            from calibre.ebooks.oeb.polish.pretty import fix_html
            self.editor.replace_text(fix_html(current_container(), unicode(self.editor.toPlainText())).decode('utf-8'))
            return True
        return False

    def pretty_print(self, name):
        from calibre.ebooks.oeb.polish.pretty import pretty_html, pretty_css, pretty_xml
        if self.syntax in {'css', 'html', 'xml'}:
            func = {'css':pretty_css, 'xml':pretty_xml}.get(self.syntax, pretty_html)
            original_text = unicode(self.editor.toPlainText())
            prettied_text = func(current_container(), name, original_text).decode('utf-8')
            if original_text != prettied_text:
                self.editor.replace_text(prettied_text)
            return True
        return False

    def show_context_menu(self, pos):
        m = QMenu(self)
        a = m.addAction
        c = self.editor.cursorForPosition(pos)
        r = self.editor.syntax_range_for_cursor(c)
        if r is not None and r.format.property(SPELL_PROPERTY).toBool():
            word = self.editor.text_for_range(c.block(), r)
            locale = self.editor.spellcheck_locale_for_cursor(c)
            orig_pos = c.position()
            c.setPosition(orig_pos - utf16_length(word))
            found = False
            self.editor.setTextCursor(c)
            if self.editor.find_spell_word([word], locale.langcode, center_on_cursor=False):
                found = True
                fc = self.editor.textCursor()
                if fc.position() < c.position():
                    self.editor.find_spell_word([word], locale.langcode, center_on_cursor=False)
            if found:
                suggestions = dictionaries.suggestions(word, locale)[:7]
                if suggestions:
                    for suggestion in suggestions:
                        ac = m.addAction(suggestion, partial(self.editor.simple_replace, suggestion))
                        f = ac.font()
                        f.setBold(True), ac.setFont(f)
                    m.addSeparator()
                m.addAction(actions['spell-next'])
                m.addAction(_('Ignore this word'), partial(self._nuke_word, None, word, locale))
                dics = dictionaries.active_user_dictionaries
                if len(dics) > 0:
                    if len(dics) == 1:
                        m.addAction(_('Add this word to the dictionary: {0}').format(dics[0].name), partial(
                            self._nuke_word, dics[0].name, word, locale))
                    else:
                        ac = m.addAction(_('Add this word to the dictionary'))
                        dmenu = QMenu(m)
                        ac.setMenu(dmenu)
                        for dic in dics:
                            dmenu.addAction(dic.name, partial(self._nuke_word, dic.name, word, locale))
                m.addSeparator()

        for x in ('undo', 'redo'):
            a(actions['editor-%s' % x])
        m.addSeparator()
        for x in ('cut', 'copy', 'paste'):
            a(actions['editor-' + x])
        m.addSeparator()
        m.addAction(_('&Select all'), self.editor.select_all)
        m.addAction(actions['mark-selected-text'])
        if self.syntax == 'html':
            m.addAction(actions['multisplit'])
        m.exec_(self.editor.mapToGlobal(pos))

    def goto_sourceline(self, *args, **kwargs):
        return self.editor.goto_sourceline(*args, **kwargs)

    def goto_css_rule(self, *args, **kwargs):
        return self.editor.goto_css_rule(*args, **kwargs)

    def get_tag_contents(self, *args, **kwargs):
        return self.editor.get_tag_contents(*args, **kwargs)

    def _nuke_word(self, dic, word, locale):
        if dic is None:
            dictionaries.ignore_word(word, locale)
        else:
            dictionaries.add_to_user_dictionary(dic, word, locale)
        self.word_ignored.emit(word, locale)