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)
@property
def current_line(self):
return self.editor.textCursor().blockNumber()
@current_line.setter
def current_line(self, val):
self.editor.go_to_line(val)
@property
def current_editing_state(self):
c = self.editor.textCursor()
return {'cursor': (c.anchor(), c.position())}
@current_editing_state.setter
def current_editing_state(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)
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()
@property
def data(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')
@data.setter
def data(self, val):
self.editor.load_text(val,
syntax=self.syntax,
doc_name=editor_name(self))
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_type(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)
def set_focus(self):
self.editor.setFocus(Qt.OtherFocusReason)
def action_triggered(self, action):
action, args = action[0], action[1:]
func = getattr(self.editor, action)
func(*args)
def insert_image(self,
href,
fullpage=False,
preserve_aspect_ratio=False,
width=-1,
height=-1):
self.editor.insert_image(href,
fullpage=fullpage,
preserve_aspect_ratio=preserve_aspect_ratio,
width=width,
height=height)
def insert_hyperlink(self, href, text, template=None):
self.editor.insert_hyperlink(href, text, template=template)
def _build_insert_tag_button_menu(self):
m = self.insert_tag_menu
m.clear()
names = tprefs['insert_tag_mru']
for name in names:
m.addAction(name, partial(self.insert_tag, name))
if names:
m.addSeparator()
m = m.addMenu(_('Remove from this menu'))
for name in names:
m.addAction(name, partial(self.remove_insert_tag, name))
def insert_tag(self, name):
self.editor.insert_tag(name)
mru = tprefs['insert_tag_mru']
try:
mru.remove(name)
except ValueError:
pass
mru.insert(0, name)
tprefs['insert_tag_mru'] = mru
self._build_insert_tag_button_menu()
def remove_insert_tag(self, name):
mru = tprefs['insert_tag_mru']
try:
mru.remove(name)
except ValueError:
pass
tprefs['insert_tag_mru'] = mru
self._build_insert_tag_button_menu()
def set_request_completion(self, callback=None, doc_name=None):
self.editor.request_completion = callback
self.editor.completion_doc_name = doc_name
def handle_completion_result(self, result):
return self.editor.handle_completion_result(result)
def undo(self):
self.editor.undo()
def redo(self):
self.editor.redo()
@property
def selected_text(self):
return self.editor.selected_text
def get_smart_selection(self, update=True):
return self.editor.smarts.get_smart_selection(self.editor,
update=update)
# Search and replace {{{
def mark_selected_text(self):
self.editor.mark_selected_text()
def find(self, *args, **kwargs):
return self.editor.find(*args, **kwargs)
def find_text(self, *args, **kwargs):
return self.editor.find_text(*args, **kwargs)
def find_spell_word(self, *args, **kwargs):
return self.editor.find_spell_word(*args, **kwargs)
def replace(self, *args, **kwargs):
return self.editor.replace(*args, **kwargs)
def all_in_marked(self, *args, **kwargs):
return self.editor.all_in_marked(*args, **kwargs)
def go_to_anchor(self, *args, **kwargs):
return self.editor.go_to_anchor(*args, **kwargs)
# }}}
@property
def has_marked_text(self):
return self.editor.current_search_mark is not None
@property
def is_modified(self):
return self.editor.is_modified
@is_modified.setter
def is_modified(self, val):
self.editor.is_modified = val
def create_toolbars(self):
self.action_bar = b = self.addToolBar(_('Edit actions tool bar'))
b.setObjectName('action_bar') # Needed for saveState
self.tools_bar = b = self.addToolBar(_('Editor tools'))
b.setObjectName('tools_bar')
self.bars = [self.action_bar, self.tools_bar]
if self.syntax == 'html':
self.format_bar = b = self.addToolBar(_('Format text'))
b.setObjectName('html_format_bar')
self.bars.append(self.format_bar)
self.insert_tag_menu = QMenu(self)
self.populate_toolbars()
for x in self.bars:
x.setFloatable(False)
x.topLevelChanged.connect(self.toolbar_floated)
x.setIconSize(
QSize(tprefs['toolbar_icon_size'],
tprefs['toolbar_icon_size']))
def toolbar_floated(self, floating):
if not floating:
self.save_state()
for ed in itervalues(editors):
if ed is not self:
ed.restore_state()
def save_state(self):
for bar in self.bars:
if bar.isFloating():
return
tprefs['%s-editor-state' % self.syntax] = bytearray(self.saveState())
def restore_state(self):
state = tprefs.get('%s-editor-state' % self.syntax, None)
if state is not None:
self.restoreState(state)
for bar in self.bars:
bar.setVisible(len(bar.actions()) > 0)
def populate_toolbars(self):
self.action_bar.clear(), self.tools_bar.clear()
def add_action(name, bar):
if name is None:
bar.addSeparator()
return
try:
ac = actions[name]
except KeyError:
if DEBUG:
prints('Unknown editor tool: %r' % name)
return
bar.addAction(ac)
if name == 'insert-tag':
w = bar.widgetForAction(ac)
if hasattr(w, 'setPopupMode'):
# For some unknown reason this button is occassionally a
# QPushButton instead of a QToolButton
w.setPopupMode(QToolButton.MenuButtonPopup)
w.setMenu(self.insert_tag_menu)
w.setContextMenuPolicy(Qt.CustomContextMenu)
w.customContextMenuRequested.connect(w.showMenu)
self._build_insert_tag_button_menu()
elif name == 'change-paragraph':
m = ac.m = QMenu()
ac.setMenu(m)
ch = bar.widgetForAction(ac)
if hasattr(ch, 'setPopupMode'):
# For some unknown reason this button is occassionally a
# QPushButton instead of a QToolButton
ch.setPopupMode(QToolButton.InstantPopup)
for name in tuple('h%d' % d for d in range(1, 7)) + ('p', ):
m.addAction(actions['rename-block-tag-%s' % name])
for name in tprefs.get('editor_common_toolbar', ()):
add_action(name, self.action_bar)
for name in tprefs.get('editor_%s_toolbar' % self.syntax, ()):
add_action(name, self.tools_bar)
if self.syntax == 'html':
self.format_bar.clear()
for name in tprefs['editor_format_toolbar']:
add_action(name, self.format_bar)
self.restore_state()
def break_cycles(self):
for x in ('modification_state_changed', 'word_ignored', 'link_clicked',
'smart_highlighting_updated'):
try:
getattr(self, x).disconnect()
except TypeError:
pass # in case this signal was never connected
self.undo_redo_state_changed.disconnect()
self.copy_available_state_changed.disconnect()
self.cursor_position_changed.disconnect()
self.data_changed.disconnect()
self.editor.undoAvailable.disconnect()
self.editor.redoAvailable.disconnect()
self.editor.modificationChanged.disconnect()
self.editor.textChanged.disconnect()
self.editor.copyAvailable.disconnect()
self.editor.cursorPositionChanged.disconnect()
self.editor.link_clicked.disconnect()
self.editor.smart_highlighting_updated.disconnect()
self.editor.setPlainText('')
self.editor.smarts = None
self.editor.request_completion = None
def _modification_state_changed(self):
self.is_synced_to_container = self.is_modified
self.modification_state_changed.emit(self.is_modified)
def _data_changed(self):
self.is_synced_to_container = False
self.data_changed.emit(self)
def _undo_available(self, available):
self.undo_available = available
self.undo_redo_state_changed.emit(self.undo_available,
self.redo_available)
def _redo_available(self, available):
self.redo_available = available
self.undo_redo_state_changed.emit(self.undo_available,
self.redo_available)
def _copy_available(self, available):
self.copy_available = self.cut_available = available
self.copy_available_state_changed.emit(available)
def _cursor_position_changed(self, *args):
self.cursor_position_changed.emit()
@property
def cursor_position(self):
c = self.editor.textCursor()
char = ''
col = c.positionInBlock()
if not c.atStart():
c.clearSelection()
c.movePosition(c.PreviousCharacter, c.KeepAnchor)
char = unicode_type(c.selectedText()).rstrip('\0')
return (c.blockNumber() + 1, col, char)
def cut(self):
self.editor.cut()
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_type(
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_type(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)
origc = QTextCursor(c)
current_cursor = self.editor.textCursor()
r = origr = self.editor.syntax_range_for_cursor(c)
if (
r is None or not r.format.property(SPELL_PROPERTY)
) and c.positionInBlock() > 0 and not current_cursor.hasSelection():
c.setPosition(c.position() - 1)
r = self.editor.syntax_range_for_cursor(c)
if r is not None and r.format.property(SPELL_PROPERTY):
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)
spell_cursor = self.editor.textCursor()
if current_cursor.hasSelection():
# Restore the current cursor so that any selection is preserved
# for the change case actions
self.editor.setTextCursor(current_cursor)
if found:
suggestions = dictionaries.suggestions(word, locale)[:7]
if suggestions:
for suggestion in suggestions:
ac = m.addAction(
suggestion,
partial(self.editor.simple_replace,
suggestion,
cursor=spell_cursor))
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()
if origr is not None and origr.format.property(LINK_PROPERTY):
href = self.editor.text_for_range(origc.block(), origr)
m.addAction(
_('Open %s') % href, partial(self.link_clicked.emit, href))
if origr is not None and (origr.format.property(TAG_NAME_PROPERTY)
or origr.format.property(CSS_PROPERTY)):
word = self.editor.text_for_range(origc.block(), origr)
item_type = 'tag_name' if origr.format.property(
TAG_NAME_PROPERTY) else 'css_property'
url = help_url(word,
item_type,
self.editor.highlighter.doc_name,
extra_data=current_container().opf_version)
if url is not None:
m.addAction(
_('Show help for: %s') % word, partial(open_url, url))
for x in ('undo', 'redo'):
ac = actions['editor-%s' % x]
if ac.isEnabled():
a(ac)
m.addSeparator()
for x in ('cut', 'copy', 'paste'):
ac = actions['editor-' + x]
if ac.isEnabled():
a(ac)
m.addSeparator()
m.addAction(_('&Select all'), self.editor.select_all)
if self.selected_text or self.has_marked_text:
update_mark_text_action(self)
m.addAction(actions['mark-selected-text'])
if self.syntax != 'css' and actions['editor-cut'].isEnabled():
cm = QMenu(_('Change &case'), m)
for ac in 'upper lower swap title capitalize'.split():
cm.addAction(actions['transform-case-' + ac])
m.addMenu(cm)
if self.syntax == 'html':
m.addAction(actions['multisplit'])
m.exec_(self.editor.viewport().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)
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)
def set_focus(self):
self.editor.setFocus(Qt.OtherFocusReason)
def action_triggered(self, action):
action, args = action[0], action[1:]
func = getattr(self.editor, action)
func(*args)
def insert_image(self, href, fullpage=False, preserve_aspect_ratio=False):
self.editor.insert_image(href, fullpage=fullpage, preserve_aspect_ratio=preserve_aspect_ratio)
def insert_hyperlink(self, href, text):
self.editor.insert_hyperlink(href, text)
def _build_insert_tag_button_menu(self):
m = self.insert_tag_menu
m.clear()
names = tprefs['insert_tag_mru']
for name in names:
m.addAction(name, partial(self.insert_tag, name))
if names:
m.addSeparator()
m = m.addMenu(_('Remove from this menu'))
for name in names:
m.addAction(name, partial(self.remove_insert_tag, name))
def insert_tag(self, name):
self.editor.insert_tag(name)
mru = tprefs['insert_tag_mru']
try:
mru.remove(name)
except ValueError:
pass
mru.insert(0, name)
tprefs['insert_tag_mru'] = mru
self._build_insert_tag_button_menu()
def remove_insert_tag(self, name):
mru = tprefs['insert_tag_mru']
try:
mru.remove(name)
except ValueError:
pass
tprefs['insert_tag_mru'] = mru
self._build_insert_tag_button_menu()
def set_request_completion(self, callback=None, doc_name=None):
self.editor.request_completion = callback
self.editor.completion_doc_name = doc_name
def handle_completion_result(self, result):
return self.editor.handle_completion_result(result)
def undo(self):
self.editor.undo()
def redo(self):
self.editor.redo()
@property
def selected_text(self):
return self.editor.selected_text
def get_smart_selection(self, update=True):
return self.editor.smarts.get_smart_selection(self.editor, update=update)
# Search and replace {{{
def mark_selected_text(self):
self.editor.mark_selected_text()
def find(self, *args, **kwargs):
return self.editor.find(*args, **kwargs)
def find_text(self, *args, **kwargs):
return self.editor.find_text(*args, **kwargs)
def find_spell_word(self, *args, **kwargs):
return self.editor.find_spell_word(*args, **kwargs)
def replace(self, *args, **kwargs):
return self.editor.replace(*args, **kwargs)
def all_in_marked(self, *args, **kwargs):
return self.editor.all_in_marked(*args, **kwargs)
def go_to_anchor(self, *args, **kwargs):
return self.editor.go_to_anchor(*args, **kwargs)
# }}}
@property
def has_marked_text(self):
return self.editor.current_search_mark is not None
@dynamic_property
def is_modified(self):
def fget(self):
return self.editor.is_modified
def fset(self, val):
self.editor.is_modified = val
return property(fget=fget, fset=fset)
def create_toolbars(self):
self.action_bar = b = self.addToolBar(_('Edit actions tool bar'))
b.setObjectName('action_bar') # Needed for saveState
self.tools_bar = b = self.addToolBar(_('Editor tools'))
b.setObjectName('tools_bar')
self.bars = [self.action_bar, self.tools_bar]
if self.syntax == 'html':
self.format_bar = b = self.addToolBar(_('Format text'))
b.setObjectName('html_format_bar')
self.bars.append(self.format_bar)
self.insert_tag_menu = QMenu(self)
self.populate_toolbars()
for x in self.bars:
x.setFloatable(False)
x.topLevelChanged.connect(self.toolbar_floated)
x.setIconSize(QSize(tprefs['toolbar_icon_size'], tprefs['toolbar_icon_size']))
def toolbar_floated(self, floating):
if not floating:
self.save_state()
for ed in editors.itervalues():
if ed is not self:
ed.restore_state()
def save_state(self):
for bar in self.bars:
if bar.isFloating():
return
tprefs['%s-editor-state' % self.syntax] = bytearray(self.saveState())
def restore_state(self):
state = tprefs.get('%s-editor-state' % self.syntax, None)
if state is not None:
self.restoreState(state)
def populate_toolbars(self):
self.action_bar.clear(), self.tools_bar.clear()
def add_action(name, bar):
if name is None:
bar.addSeparator()
return
try:
ac = actions[name]
except KeyError:
if DEBUG:
prints('Unknown editor tool: %r' % name)
return
bar.addAction(ac)
if name == 'insert-tag':
w = bar.widgetForAction(ac)
w.setPopupMode(QToolButton.MenuButtonPopup)
w.setMenu(self.insert_tag_menu)
w.setContextMenuPolicy(Qt.CustomContextMenu)
w.customContextMenuRequested.connect(w.showMenu)
self._build_insert_tag_button_menu()
elif name == 'change-paragraph':
m = ac.m = QMenu()
ac.setMenu(m)
ch = bar.widgetForAction(ac)
ch.setPopupMode(QToolButton.InstantPopup)
for name in tuple('h%d' % d for d in range(1, 7)) + ('p',):
m.addAction(actions['rename-block-tag-%s' % name])
for name in tprefs.get('editor_common_toolbar', ()):
add_action(name, self.action_bar)
for name in tprefs.get('editor_%s_toolbar' % self.syntax, ()):
add_action(name, self.tools_bar)
if self.syntax == 'html':
self.format_bar.clear()
for name in tprefs['editor_format_toolbar']:
add_action(name, self.format_bar)
self.restore_state()
def break_cycles(self):
for x in ('modification_state_changed', 'word_ignored', 'link_clicked', 'smart_highlighting_updated'):
try:
getattr(self, x).disconnect()
except TypeError:
pass # in case this signal was never connected
self.undo_redo_state_changed.disconnect()
self.copy_available_state_changed.disconnect()
self.cursor_position_changed.disconnect()
self.data_changed.disconnect()
self.editor.undoAvailable.disconnect()
self.editor.redoAvailable.disconnect()
self.editor.modificationChanged.disconnect()
self.editor.textChanged.disconnect()
self.editor.copyAvailable.disconnect()
self.editor.cursorPositionChanged.disconnect()
self.editor.link_clicked.disconnect()
self.editor.smart_highlighting_updated.disconnect()
self.editor.setPlainText('')
self.editor.smarts = None
self.editor.request_completion = None
def _modification_state_changed(self):
self.is_synced_to_container = self.is_modified
self.modification_state_changed.emit(self.is_modified)
def _data_changed(self):
self.is_synced_to_container = False
self.data_changed.emit(self)
def _undo_available(self, available):
self.undo_available = available
self.undo_redo_state_changed.emit(self.undo_available, self.redo_available)
def _redo_available(self, available):
self.redo_available = available
self.undo_redo_state_changed.emit(self.undo_available, self.redo_available)
def _copy_available(self, available):
self.copy_available = self.cut_available = available
self.copy_available_state_changed.emit(available)
def _cursor_position_changed(self, *args):
self.cursor_position_changed.emit()
@property
def cursor_position(self):
c = self.editor.textCursor()
char = ''
col = c.positionInBlock()
if not c.atStart():
c.clearSelection()
c.movePosition(c.PreviousCharacter, c.KeepAnchor)
char = unicode(c.selectedText()).rstrip('\0')
return (c.blockNumber() + 1, col, char)
def cut(self):
self.editor.cut()
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)
origc = QTextCursor(c)
current_cursor = self.editor.textCursor()
r = origr = self.editor.syntax_range_for_cursor(c)
if (r is None or not r.format.property(SPELL_PROPERTY)) and c.positionInBlock() > 0 and not current_cursor.hasSelection():
c.setPosition(c.position() - 1)
r = self.editor.syntax_range_for_cursor(c)
if r is not None and r.format.property(SPELL_PROPERTY):
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)
spell_cursor = self.editor.textCursor()
if current_cursor.hasSelection():
# Restore the current cursor so that any selection is preserved
# for the change case actions
self.editor.setTextCursor(current_cursor)
if found:
suggestions = dictionaries.suggestions(word, locale)[:7]
if suggestions:
for suggestion in suggestions:
ac = m.addAction(suggestion, partial(self.editor.simple_replace, suggestion, cursor=spell_cursor))
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()
if origr is not None and origr.format.property(LINK_PROPERTY):
href = self.editor.text_for_range(origc.block(), origr)
m.addAction(_('Open %s') % href, partial(self.link_clicked.emit, href))
if origr is not None and (origr.format.property(TAG_NAME_PROPERTY) or origr.format.property(CSS_PROPERTY)):
word = self.editor.text_for_range(origc.block(), origr)
item_type = 'tag_name' if origr.format.property(TAG_NAME_PROPERTY) else 'css_property'
url = help_url(word, item_type, self.editor.highlighter.doc_name, extra_data=current_container().opf_version)
if url is not None:
m.addAction(_('Show help for: %s') % word, partial(open_url, url))
for x in ('undo', 'redo'):
ac = actions['editor-%s' % x]
if ac.isEnabled():
a(ac)
m.addSeparator()
for x in ('cut', 'copy', 'paste'):
ac = actions['editor-' + x]
if ac.isEnabled():
a(ac)
m.addSeparator()
m.addAction(_('&Select all'), self.editor.select_all)
if self.selected_text or self.has_marked_text:
update_mark_text_action(self)
m.addAction(actions['mark-selected-text'])
if self.syntax != 'css' and actions['editor-cut'].isEnabled():
cm = QMenu(_('Change &case'), m)
for ac in 'upper lower swap title capitalize'.split():
cm.addAction(actions['transform-case-' + ac])
m.addMenu(cm)
if self.syntax == 'html':
m.addAction(actions['multisplit'])
m.exec_(self.editor.viewport().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)
class Editor(QMainWindow):
modification_state_changed = pyqtSignal(object)
undo_redo_state_changed = pyqtSignal(object, object)
copy_available_state_changed = pyqtSignal(object)
data_changed = pyqtSignal(object)
def __init__(self, syntax, parent=None):
QMainWindow.__init__(self, parent)
if parent is None:
self.setWindowFlags(Qt.Widget)
self.syntax = syntax
self.editor = TextEdit(self)
self.setCentralWidget(self.editor)
self.editor.modificationChanged.connect(self.modification_state_changed.emit)
self.create_toolbars()
self.undo_available = False
self.redo_available = False
self.copy_available = self.cut_available = False
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)
@dynamic_property
def data(self):
def fget(self):
ans = unicode(self.editor.toPlainText())
if self.syntax == 'html':
ans = xml_replace_entities(ans)
return ans.encode('utf-8')
def fset(self, val):
self.editor.load_text(val, syntax=self.syntax)
return property(fget=fget, fset=fset)
def get_raw_data(self):
return unicode(self.editor.toPlainText())
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 set_focus(self):
self.editor.setFocus(Qt.OtherFocusReason)
def undo(self):
self.editor.undo()
def redo(self):
self.editor.redo()
@dynamic_property
def is_modified(self):
def fget(self):
return self.editor.is_modified
def fset(self, val):
self.editor.is_modified = val
return property(fget=fget, fset=fset)
def create_toolbars(self):
self.action_bar = b = self.addToolBar(_('File actions tool bar'))
b.setObjectName('action_bar') # Needed for saveState
for x in ('save', 'undo', 'redo'):
try:
b.addAction(actions['editor-%s' % x])
except KeyError:
pass
self.edit_bar = b = self.addToolBar(_('Edit actions tool bar'))
for x in ('cut', 'copy', 'paste'):
try:
b.addAction(actions['editor-%s' % x])
except KeyError:
pass
def break_cycles(self):
self.modification_state_changed.disconnect()
self.undo_redo_state_changed.disconnect()
self.copy_available_state_changed.disconnect()
self.data_changed.disconnect()
self.editor.undoAvailable.disconnect()
self.editor.redoAvailable.disconnect()
self.editor.modificationChanged.disconnect()
self.editor.textChanged.disconnect()
self.editor.copyAvailable.disconnect()
self.editor.setPlainText('')
def _data_changed(self):
self.data_changed.emit(self)
def _undo_available(self, available):
self.undo_available = available
self.undo_redo_state_changed.emit(self.undo_available, self.redo_available)
def _redo_available(self, available):
self.redo_available = available
self.undo_redo_state_changed.emit(self.undo_available, self.redo_available)
def _copy_available(self, available):
self.copy_available = self.cut_available = available
self.copy_available_state_changed.emit(available)
def cut(self):
self.editor.cut()
def copy(self):
self.editor.copy()
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()
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()
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)
@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)
@property
def number_of_lines(self):
return self.editor.blockCount()
@dynamic_property
def data(self):
def fget(self):
ans = self.get_raw_data()
return ans.encode('utf-8')
def fset(self, val):
self.editor.load_text(val, syntax=self.syntax)
return property(fget=fget, fset=fset)
def init_from_template(self, template):
self.editor.load_text(template, syntax=self.syntax, process_template=True)
def get_raw_data(self):
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):
self.editor.apply_settings(prefs=None)
def set_focus(self):
self.editor.setFocus(Qt.OtherFocusReason)
def action_triggered(self, action):
action, args = action[0], action[1:]
func = getattr(self.editor, action)
func(*args)
def insert_image(self, href):
self.editor.insert_image(href)
def undo(self):
self.editor.undo()
def redo(self):
self.editor.redo()
@property
def selected_text(self):
return self.editor.selected_text
# Search and replace {{{
def mark_selected_text(self):
self.editor.mark_selected_text()
def find(self, *args, **kwargs):
return self.editor.find(*args, **kwargs)
def replace(self, *args, **kwargs):
return self.editor.replace(*args, **kwargs)
def all_in_marked(self, *args, **kwargs):
return self.editor.all_in_marked(*args, **kwargs)
def go_to_anchor(self, *args, **kwargs):
return self.editor.go_to_anchor(*args, **kwargs)
# }}}
@property
def has_marked_text(self):
return self.editor.current_search_mark is not None
@dynamic_property
def is_modified(self):
def fget(self):
return self.editor.is_modified
def fset(self, val):
self.editor.is_modified = val
return property(fget=fget, fset=fset)
def create_toolbars(self):
self.action_bar = b = self.addToolBar(_('File actions tool bar'))
b.setObjectName('action_bar') # Needed for saveState
for x in ('undo', 'redo'):
b.addAction(actions['editor-%s' % x])
self.edit_bar = b = self.addToolBar(_('Edit actions tool bar'))
for x in ('cut', 'copy', 'paste'):
b.addAction(actions['editor-%s' % x])
self.tools_bar = b = self.addToolBar(_('Editor tools'))
if self.syntax == 'html':
b.addAction(actions['fix-html-current'])
if self.syntax in {'xml', 'html', 'css'}:
b.addAction(actions['pretty-current'])
if self.syntax in {'html', 'css'}:
b.addAction(actions['insert-image'])
if self.syntax == 'html':
self.format_bar = b = self.addToolBar(_('Format text'))
for x in ('bold', 'italic', 'underline', 'strikethrough', 'subscript', 'superscript', 'color', 'background-color'):
b.addAction(actions['format-text-%s' % x])
ac = b.addAction(QIcon(I('format-text-heading.png')), _('Change paragraph to heading'))
m = QMenu()
ac.setMenu(m)
b.widgetForAction(ac).setPopupMode(QToolButton.InstantPopup)
for name in tuple('h%d' % d for d in range(1, 7)) + ('p',):
m.addAction(actions['rename-block-tag-%s' % name])
def break_cycles(self):
self.modification_state_changed.disconnect()
self.undo_redo_state_changed.disconnect()
self.copy_available_state_changed.disconnect()
self.cursor_position_changed.disconnect()
self.data_changed.disconnect()
self.editor.undoAvailable.disconnect()
self.editor.redoAvailable.disconnect()
self.editor.modificationChanged.disconnect()
self.editor.textChanged.disconnect()
self.editor.copyAvailable.disconnect()
self.editor.cursorPositionChanged.disconnect()
self.editor.setPlainText('')
self.editor.smarts = None
def _modification_state_changed(self):
self.is_synced_to_container = self.is_modified
self.modification_state_changed.emit(self.is_modified)
def _data_changed(self):
self.is_synced_to_container = False
self.data_changed.emit(self)
def _undo_available(self, available):
self.undo_available = available
self.undo_redo_state_changed.emit(self.undo_available, self.redo_available)
def _redo_available(self, available):
self.redo_available = available
self.undo_redo_state_changed.emit(self.undo_available, self.redo_available)
def _copy_available(self, available):
self.copy_available = self.cut_available = available
self.copy_available_state_changed.emit(available)
def _cursor_position_changed(self, *args):
self.cursor_position_changed.emit()
@property
def cursor_position(self):
c = self.editor.textCursor()
char = ''
if not c.atStart():
c.clearSelection()
c.setPosition(c.position()-1, c.KeepAnchor)
char = unicode(c.selectedText()).rstrip('\0')
return (c.blockNumber() + 1, c.positionInBlock(), char)
def cut(self):
self.editor.cut()
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)
self.editor.replace_text(func(current_container(), name, unicode(self.editor.toPlainText())).decode('utf-8'))
return True
return False
def show_context_menu(self, pos):
m = QMenu(self)
a = m.addAction
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))
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()
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.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)
@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)
@property
def number_of_lines(self):
return self.editor.blockCount()
@dynamic_property
def data(self):
def fget(self):
ans = self.get_raw_data()
return ans.encode('utf-8')
def fset(self, val):
self.editor.load_text(val, syntax=self.syntax)
return property(fget=fget, fset=fset)
def init_from_template(self, template):
self.editor.load_text(template, syntax=self.syntax, process_template=True)
def get_raw_data(self):
return unicodedata.normalize('NFC', unicode(self.editor.toPlainText()))
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):
self.editor.apply_settings(prefs=None)
def set_focus(self):
self.editor.setFocus(Qt.OtherFocusReason)
def undo(self):
self.editor.undo()
def redo(self):
self.editor.redo()
@property
def selected_text(self):
return self.editor.selected_text
# Search and replace {{{
def mark_selected_text(self):
self.editor.mark_selected_text()
def find(self, *args, **kwargs):
return self.editor.find(*args, **kwargs)
def replace(self, *args, **kwargs):
return self.editor.replace(*args, **kwargs)
def all_in_marked(self, *args, **kwargs):
return self.editor.all_in_marked(*args, **kwargs)
def go_to_anchor(self, *args, **kwargs):
return self.editor.go_to_anchor(*args, **kwargs)
# }}}
@property
def has_marked_text(self):
return self.editor.current_search_mark is not None
@dynamic_property
def is_modified(self):
def fget(self):
return self.editor.is_modified
def fset(self, val):
self.editor.is_modified = val
return property(fget=fget, fset=fset)
def create_toolbars(self):
self.action_bar = b = self.addToolBar(_('File actions tool bar'))
b.setObjectName('action_bar') # Needed for saveState
for x in ('undo', 'redo'):
b.addAction(actions['editor-%s' % x])
self.edit_bar = b = self.addToolBar(_('Edit actions tool bar'))
for x in ('cut', 'copy', 'paste'):
b.addAction(actions['editor-%s' % x])
self.tools_bar = b = self.addToolBar(_('Editor tools'))
if self.syntax == 'html':
b.addAction(actions['fix-html-current'])
if self.syntax in {'xml', 'html', 'css'}:
b.addAction(actions['pretty-current'])
def break_cycles(self):
self.modification_state_changed.disconnect()
self.undo_redo_state_changed.disconnect()
self.copy_available_state_changed.disconnect()
self.cursor_position_changed.disconnect()
self.data_changed.disconnect()
self.editor.undoAvailable.disconnect()
self.editor.redoAvailable.disconnect()
self.editor.modificationChanged.disconnect()
self.editor.textChanged.disconnect()
self.editor.copyAvailable.disconnect()
self.editor.cursorPositionChanged.disconnect()
self.editor.setPlainText('')
def _modification_state_changed(self):
self.is_synced_to_container = self.is_modified
self.modification_state_changed.emit(self.is_modified)
def _data_changed(self):
self.is_synced_to_container = False
self.data_changed.emit(self)
def _undo_available(self, available):
self.undo_available = available
self.undo_redo_state_changed.emit(self.undo_available, self.redo_available)
def _redo_available(self, available):
self.redo_available = available
self.undo_redo_state_changed.emit(self.undo_available, self.redo_available)
def _copy_available(self, available):
self.copy_available = self.cut_available = available
self.copy_available_state_changed.emit(available)
def _cursor_position_changed(self, *args):
self.cursor_position_changed.emit()
@property
def cursor_position(self):
c = self.editor.textCursor()
return (c.blockNumber() + 1, c.positionInBlock())
def cut(self):
self.editor.cut()
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)
self.editor.replace_text(func(current_container(), name, unicode(self.editor.toPlainText())).decode('utf-8'))
return True
return False
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()
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)
@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)
@property
def number_of_lines(self):
return self.editor.blockCount()
@dynamic_property
def data(self):
def fget(self):
ans = self.get_raw_data()
return ans.encode('utf-8')
def fset(self, val):
self.editor.load_text(val, syntax=self.syntax)
return property(fget=fget, fset=fset)
def init_from_template(self, template):
self.editor.load_text(template,
syntax=self.syntax,
process_template=True)
def get_raw_data(self):
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)
def set_focus(self):
self.editor.setFocus(Qt.OtherFocusReason)
def action_triggered(self, action):
action, args = action[0], action[1:]
func = getattr(self.editor, action)
func(*args)
def insert_image(self, href):
self.editor.insert_image(href)
def insert_hyperlink(self, href, text):
self.editor.insert_hyperlink(href, text)
def _build_insert_tag_button_menu(self):
m = self.insert_tag_button.menu()
m.clear()
for name in tprefs['insert_tag_mru']:
m.addAction(name, partial(self.insert_tag, name))
def insert_tag(self, name):
self.editor.insert_tag(name)
mru = tprefs['insert_tag_mru']
try:
mru.remove(name)
except ValueError:
pass
mru.insert(0, name)
tprefs['insert_tag_mru'] = mru
self._build_insert_tag_button_menu()
def undo(self):
self.editor.undo()
def redo(self):
self.editor.redo()
@property
def selected_text(self):
return self.editor.selected_text
def get_smart_selection(self, update=True):
return self.editor.smarts.get_smart_selection(self.editor,
update=update)
# Search and replace {{{
def mark_selected_text(self):
self.editor.mark_selected_text()
def find(self, *args, **kwargs):
return self.editor.find(*args, **kwargs)
def find_spell_word(self, *args, **kwargs):
return self.editor.find_spell_word(*args, **kwargs)
def replace(self, *args, **kwargs):
return self.editor.replace(*args, **kwargs)
def all_in_marked(self, *args, **kwargs):
return self.editor.all_in_marked(*args, **kwargs)
def go_to_anchor(self, *args, **kwargs):
return self.editor.go_to_anchor(*args, **kwargs)
# }}}
@property
def has_marked_text(self):
return self.editor.current_search_mark is not None
@dynamic_property
def is_modified(self):
def fget(self):
return self.editor.is_modified
def fset(self, val):
self.editor.is_modified = val
return property(fget=fget, fset=fset)
def create_toolbars(self):
self.action_bar = b = self.addToolBar(_('File actions tool bar'))
b.setObjectName('action_bar') # Needed for saveState
for x in ('undo', 'redo'):
b.addAction(actions['editor-%s' % x])
self.edit_bar = b = self.addToolBar(_('Edit actions tool bar'))
for x in ('cut', 'copy', 'paste'):
b.addAction(actions['editor-%s' % x])
self.tools_bar = b = self.addToolBar(_('Editor tools'))
b.setObjectName('tools_bar')
if self.syntax == 'html':
b.addAction(actions['fix-html-current'])
if self.syntax in {'xml', 'html', 'css'}:
b.addAction(actions['pretty-current'])
if self.syntax in {'html', 'css'}:
b.addAction(actions['insert-image'])
if self.syntax == 'html':
b.addAction(actions['insert-hyperlink'])
if self.syntax in {'xml', 'html'}:
b.addAction(actions['insert-tag'])
w = self.insert_tag_button = b.widgetForAction(
actions['insert-tag'])
w.setPopupMode(QToolButton.MenuButtonPopup)
w.m = m = QMenu()
w.setMenu(m)
w.setContextMenuPolicy(Qt.CustomContextMenu)
w.customContextMenuRequested.connect(
self.insert_tag_button.showMenu)
self._build_insert_tag_button_menu()
if self.syntax == 'html':
self.format_bar = b = self.addToolBar(_('Format text'))
b.setObjectName('html_format_bar')
for x in ('bold', 'italic', 'underline', 'strikethrough',
'subscript', 'superscript', 'color', 'background-color'):
b.addAction(actions['format-text-%s' % x])
ac = b.addAction(QIcon(I('format-text-heading.png')),
_('Change paragraph to heading'))
m = QMenu()
ac.setMenu(m)
b.widgetForAction(ac).setPopupMode(QToolButton.InstantPopup)
for name in tuple('h%d' % d for d in range(1, 7)) + ('p', ):
m.addAction(actions['rename-block-tag-%s' % name])
def break_cycles(self):
self.modification_state_changed.disconnect()
self.undo_redo_state_changed.disconnect()
self.copy_available_state_changed.disconnect()
self.cursor_position_changed.disconnect()
self.data_changed.disconnect()
self.editor.undoAvailable.disconnect()
self.editor.redoAvailable.disconnect()
self.editor.modificationChanged.disconnect()
self.editor.textChanged.disconnect()
self.editor.copyAvailable.disconnect()
self.editor.cursorPositionChanged.disconnect()
self.editor.setPlainText('')
self.editor.smarts = None
def _modification_state_changed(self):
self.is_synced_to_container = self.is_modified
self.modification_state_changed.emit(self.is_modified)
def _data_changed(self):
self.is_synced_to_container = False
self.data_changed.emit(self)
def _undo_available(self, available):
self.undo_available = available
self.undo_redo_state_changed.emit(self.undo_available,
self.redo_available)
def _redo_available(self, available):
self.redo_available = available
self.undo_redo_state_changed.emit(self.undo_available,
self.redo_available)
def _copy_available(self, available):
self.copy_available = self.cut_available = available
self.copy_available_state_changed.emit(available)
def _cursor_position_changed(self, *args):
self.cursor_position_changed.emit()
@property
def cursor_position(self):
c = self.editor.textCursor()
char = ''
col = c.positionInBlock()
if not c.atStart():
c.clearSelection()
c.movePosition(c.PreviousCharacter, c.KeepAnchor)
char = unicode(c.selectedText()).rstrip('\0')
return (c.blockNumber() + 1, col, char)
def cut(self):
self.editor.cut()
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
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))
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)
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)
@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)
def current_tag(self):
return self.editor.current_tag()
@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)
return property(fget=fget, fset=fset)
def init_from_template(self, template):
self.editor.load_text(template, syntax=self.syntax, process_template=True)
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)
def set_focus(self):
self.editor.setFocus(Qt.OtherFocusReason)
def action_triggered(self, action):
action, args = action[0], action[1:]
func = getattr(self.editor, action)
func(*args)
def insert_image(self, href):
self.editor.insert_image(href)
def insert_hyperlink(self, href, text):
self.editor.insert_hyperlink(href, text)
def _build_insert_tag_button_menu(self):
m = self.insert_tag_menu
m.clear()
for name in tprefs['insert_tag_mru']:
m.addAction(name, partial(self.insert_tag, name))
def insert_tag(self, name):
self.editor.insert_tag(name)
mru = tprefs['insert_tag_mru']
try:
mru.remove(name)
except ValueError:
pass
mru.insert(0, name)
tprefs['insert_tag_mru'] = mru
self._build_insert_tag_button_menu()
def undo(self):
self.editor.undo()
def redo(self):
self.editor.redo()
@property
def selected_text(self):
return self.editor.selected_text
def get_smart_selection(self, update=True):
return self.editor.smarts.get_smart_selection(self.editor, update=update)
# Search and replace {{{
def mark_selected_text(self):
self.editor.mark_selected_text()
def find(self, *args, **kwargs):
return self.editor.find(*args, **kwargs)
def find_spell_word(self, *args, **kwargs):
return self.editor.find_spell_word(*args, **kwargs)
def replace(self, *args, **kwargs):
return self.editor.replace(*args, **kwargs)
def all_in_marked(self, *args, **kwargs):
return self.editor.all_in_marked(*args, **kwargs)
def go_to_anchor(self, *args, **kwargs):
return self.editor.go_to_anchor(*args, **kwargs)
# }}}
@property
def has_marked_text(self):
return self.editor.current_search_mark is not None
@dynamic_property
def is_modified(self):
def fget(self):
return self.editor.is_modified
def fset(self, val):
self.editor.is_modified = val
return property(fget=fget, fset=fset)
def create_toolbars(self):
self.action_bar = b = self.addToolBar(_('File actions tool bar'))
b.setObjectName('action_bar') # Needed for saveState
for x in ('undo', 'redo'):
b.addAction(actions['editor-%s' % x])
self.edit_bar = b = self.addToolBar(_('Edit actions tool bar'))
for x in ('cut', 'copy', 'paste'):
b.addAction(actions['editor-%s' % x])
self.tools_bar = b = self.addToolBar(_('Editor tools'))
b.setObjectName('tools_bar')
if self.syntax == 'html':
self.format_bar = b = self.addToolBar(_('Format text'))
b.setObjectName('html_format_bar')
self.insert_tag_menu = QMenu(self)
self.populate_toolbars()
def populate_toolbars(self):
self.tools_bar.clear()
def add_action(name, bar):
try:
ac = actions[name]
except KeyError:
if DEBUG:
prints('Unknown editor tool: %r' % name)
return
bar.addAction(ac)
if name == 'insert-tag':
w = bar.widgetForAction(ac)
w.setPopupMode(QToolButton.MenuButtonPopup)
w.setMenu(self.insert_tag_menu)
w.setContextMenuPolicy(Qt.CustomContextMenu)
w.customContextMenuRequested.connect(w.showMenu)
self._build_insert_tag_button_menu()
elif name == 'change-paragraph':
m = ac.m = QMenu()
ac.setMenu(m)
bar.widgetForAction(ac).setPopupMode(QToolButton.InstantPopup)
for name in tuple('h%d' % d for d in range(1, 7)) + ('p',):
m.addAction(actions['rename-block-tag-%s' % name])
for name in tprefs.get('editor_%s_toolbar' % self.syntax, ()):
add_action(name, self.tools_bar)
if self.syntax == 'html':
self.format_bar.clear()
for name in tprefs['editor_format_toolbar']:
add_action(name, self.format_bar)
def break_cycles(self):
try:
self.modification_state_changed.disconnect()
except TypeError:
pass # in case this signal was never connected
try:
self.word_ignored.disconnect()
except TypeError:
pass # in case this signal was never connected
self.undo_redo_state_changed.disconnect()
self.copy_available_state_changed.disconnect()
self.cursor_position_changed.disconnect()
self.data_changed.disconnect()
self.editor.undoAvailable.disconnect()
self.editor.redoAvailable.disconnect()
self.editor.modificationChanged.disconnect()
self.editor.textChanged.disconnect()
self.editor.copyAvailable.disconnect()
self.editor.cursorPositionChanged.disconnect()
self.editor.setPlainText('')
self.editor.smarts = None
def _modification_state_changed(self):
self.is_synced_to_container = self.is_modified
self.modification_state_changed.emit(self.is_modified)
def _data_changed(self):
self.is_synced_to_container = False
self.data_changed.emit(self)
def _undo_available(self, available):
self.undo_available = available
self.undo_redo_state_changed.emit(self.undo_available, self.redo_available)
def _redo_available(self, available):
self.redo_available = available
self.undo_redo_state_changed.emit(self.undo_available, self.redo_available)
def _copy_available(self, available):
self.copy_available = self.cut_available = available
self.copy_available_state_changed.emit(available)
def _cursor_position_changed(self, *args):
self.cursor_position_changed.emit()
@property
def cursor_position(self):
c = self.editor.textCursor()
char = ''
col = c.positionInBlock()
if not c.atStart():
c.clearSelection()
c.movePosition(c.PreviousCharacter, c.KeepAnchor)
char = unicode(c.selectedText()).rstrip('\0')
return (c.blockNumber() + 1, col, char)
def cut(self):
self.editor.cut()
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)
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()
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.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)
@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)
@property
def number_of_lines(self):
return self.editor.blockCount()
@dynamic_property
def data(self):
def fget(self):
ans = self.get_raw_data()
return ans.encode('utf-8')
def fset(self, val):
self.editor.load_text(val, syntax=self.syntax)
return property(fget=fget, fset=fset)
def init_from_template(self, template):
self.editor.load_text(template,
syntax=self.syntax,
process_template=True)
def get_raw_data(self):
return unicodedata.normalize('NFC', unicode(self.editor.toPlainText()))
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):
self.editor.apply_settings(prefs=None)
def set_focus(self):
self.editor.setFocus(Qt.OtherFocusReason)
def undo(self):
self.editor.undo()
def redo(self):
self.editor.redo()
@property
def selected_text(self):
return self.editor.selected_text
# Search and replace {{{
def mark_selected_text(self):
self.editor.mark_selected_text()
def find(self, *args, **kwargs):
return self.editor.find(*args, **kwargs)
def replace(self, *args, **kwargs):
return self.editor.replace(*args, **kwargs)
def all_in_marked(self, *args, **kwargs):
return self.editor.all_in_marked(*args, **kwargs)
def go_to_anchor(self, *args, **kwargs):
return self.editor.go_to_anchor(*args, **kwargs)
# }}}
@property
def has_marked_text(self):
return self.editor.current_search_mark is not None
@dynamic_property
def is_modified(self):
def fget(self):
return self.editor.is_modified
def fset(self, val):
self.editor.is_modified = val
return property(fget=fget, fset=fset)
def create_toolbars(self):
self.action_bar = b = self.addToolBar(_('File actions tool bar'))
b.setObjectName('action_bar') # Needed for saveState
for x in ('undo', 'redo'):
b.addAction(actions['editor-%s' % x])
self.edit_bar = b = self.addToolBar(_('Edit actions tool bar'))
for x in ('cut', 'copy', 'paste'):
b.addAction(actions['editor-%s' % x])
self.tools_bar = b = self.addToolBar(_('Editor tools'))
if self.syntax == 'html':
b.addAction(actions['fix-html-current'])
if self.syntax in {'xml', 'html', 'css'}:
b.addAction(actions['pretty-current'])
def break_cycles(self):
self.modification_state_changed.disconnect()
self.undo_redo_state_changed.disconnect()
self.copy_available_state_changed.disconnect()
self.cursor_position_changed.disconnect()
self.data_changed.disconnect()
self.editor.undoAvailable.disconnect()
self.editor.redoAvailable.disconnect()
self.editor.modificationChanged.disconnect()
self.editor.textChanged.disconnect()
self.editor.copyAvailable.disconnect()
self.editor.cursorPositionChanged.disconnect()
self.editor.setPlainText('')
def _modification_state_changed(self):
self.is_synced_to_container = self.is_modified
self.modification_state_changed.emit(self.is_modified)
def _data_changed(self):
self.is_synced_to_container = False
self.data_changed.emit(self)
def _undo_available(self, available):
self.undo_available = available
self.undo_redo_state_changed.emit(self.undo_available,
self.redo_available)
def _redo_available(self, available):
self.redo_available = available
self.undo_redo_state_changed.emit(self.undo_available,
self.redo_available)
def _copy_available(self, available):
self.copy_available = self.cut_available = available
self.copy_available_state_changed.emit(available)
def _cursor_position_changed(self, *args):
self.cursor_position_changed.emit()
@property
def cursor_position(self):
c = self.editor.textCursor()
return (c.blockNumber() + 1, c.positionInBlock())
def cut(self):
self.editor.cut()
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)
self.editor.replace_text(
func(current_container(), name,
unicode(self.editor.toPlainText())).decode('utf-8'))
return True
return False