def __init__(self, parent):
QWidget.__init__(self, parent)
self.layout = QTextLayout()
self.layout.setFont(self.font())
self.layout.setCacheEnabled(True)
self.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Preferred)
self.last_layout_rect = None
def __init__(self, parent):
QWidget.__init__(self, parent)
self.layout = QTextLayout()
self.layout.setFont(self.font())
self.layout.setCacheEnabled(True)
self.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Preferred)
self.last_layout_rect = None
class Message(QWidget):
def __init__(self, parent):
QWidget.__init__(self, parent)
self.layout = QTextLayout()
self.layout.setFont(self.font())
self.layout.setCacheEnabled(True)
self.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Preferred)
self.last_layout_rect = None
def setText(self, text):
self.layout.setText(text)
self.last_layout_rect = None
self.update()
def sizeHint(self):
return QSize(10, 10)
def do_layout(self):
ly = self.layout
ly.beginLayout()
w = self.width() - 5
height = 0
leading = self.fontMetrics().leading()
while True:
line = ly.createLine()
if not line.isValid():
break
line.setLineWidth(w)
height += leading
line.setPosition(QPointF(5, height))
height += line.height()
ly.endLayout()
def paintEvent(self, ev):
if self.last_layout_rect != self.rect():
self.do_layout()
p = QPainter(self)
br = self.layout.boundingRect()
y = 0
if br.height() < self.height():
y = (self.height() - br.height()) / 2
self.layout.draw(p, QPointF(0, y))
class Message(QWidget):
def __init__(self, parent):
QWidget.__init__(self, parent)
self.layout = QTextLayout()
self.layout.setFont(self.font())
self.layout.setCacheEnabled(True)
self.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Preferred)
self.last_layout_rect = None
def setText(self, text):
self.layout.setText(text)
self.last_layout_rect = None
self.update()
def sizeHint(self):
return QSize(10, 10)
def do_layout(self):
ly = self.layout
ly.beginLayout()
w = self.width() - 5
height = 0
leading = self.fontMetrics().leading()
while True:
line = ly.createLine()
if not line.isValid():
break
line.setLineWidth(w)
height += leading
line.setPosition(QPointF(5, height))
height += line.height()
ly.endLayout()
def paintEvent(self, ev):
if self.last_layout_rect != self.rect():
self.do_layout()
p = QPainter(self)
br = self.layout.boundingRect()
y = 0
if br.height() < self.height():
y = (self.height() - br.height()) / 2
self.layout.draw(p, QPointF(0, y))
def _refreshTextFormat(self):
if not self._webView:
return
textFormat = [] # typedef QList<QTextLayout::FormatRange>
if self._webView.url().isEmpty():
hostName = QUrl(self.text()).host()
else:
hostName = self._webView.url().host()
if hostName:
hostPos = self.text().find(hostName)
if hostPos > 0:
format_ = QTextCharFormat()
palette = self.palette()
color = Colors.mid(palette.color(QPalette.Base),
palette.color(QPalette.Text), 1, 1)
format_.setForeground(color)
schemePart = QTextLayout.FormatRange()
schemePart.start = 0
schemePart.length = hostPos
schemePart.format = format_
hostPart = QTextLayout.FormatRange()
hostPart.start = hostPos
hostPart.length = len(hostName)
remainingPart = QTextLayout.FormatRange()
remainingPart.start = hostPos + len(hostName)
remainingPart.length = len(self.text()) - remainingPart.start
remainingPart.format = format_
textFormat.append(schemePart)
textFormat.append(hostPart)
textFormat.append(remainingPart)
self.setTextFormat(textFormat)
def parse_text_formatting(text):
pos = 0
tokens = []
for m in re.finditer(r'</?([a-zA-Z1-6]+)/?>', text):
q = text[pos:m.start()]
if q:
tokens.append((False, q))
tokens.append((True, (m.group(1).lower(), '/' in m.group()[:2])))
pos = m.end()
if tokens:
if text[pos:]:
tokens.append((False, text[pos:]))
else:
tokens = [(False, text)]
ranges, open_ranges, text = [], [], []
offset = 0
for is_tag, tok in tokens:
if is_tag:
tag, closing = tok
if closing:
if open_ranges:
r = open_ranges.pop()
r[-1] = offset - r[-2]
if r[-1] > 0:
ranges.append(r)
else:
if tag in {'b', 'strong', 'i', 'em'}:
open_ranges.append([tag, offset, -1])
else:
offset += len(tok)
text.append(tok)
text = ''.join(text)
formats = []
for tag, start, length in chain(ranges, open_ranges):
fmt = QTextCharFormat()
if tag in {'b', 'strong'}:
fmt.setFontWeight(QFont.Bold)
elif tag in {'i', 'em'}:
fmt.setFontItalic(True)
else:
continue
if length == -1:
length = len(text) - start
if length > 0:
r = QTextLayout.FormatRange()
r.format = fmt
r.start, r.length = start, length
formats.append(r)
return text, formats
def do_tag(block, words, lo, hi, pos, fmts):
for word in words[lo:hi]:
if word == '\n':
if fmts:
block.layout().setAdditionalFormats(fmts)
pos, block, fmts = 0, block.next(), []
continue
if tag in {'replace', 'insert', 'delete'}:
fmt = getattr(self.left, '%s_format' % ('replacereplace' if tag == 'replace' else tag))
f = QTextLayout.FormatRange()
f.start, f.length, f.format = pos, len(word), fmt
fmts.append(f)
pos += len(word)
return block, pos, fmts
def parse_single_block(self, block):
ud, is_new_ud = self.get_user_data(block)
orig_state = ud.state
pblock = block.previous()
if pblock.isValid():
start_state = pblock.userData()
if start_state is None:
start_state = self.user_data_factory().state
else:
start_state = start_state.state.copy()
else:
start_state = self.user_data_factory().state
ud.clear(state=start_state, doc_name=self.doc_name) # Ensure no stale user data lingers
formats = []
for i, num, fmt in run_loop(ud, self.state_map, self.formats, unicode_type(block.text())):
if fmt is not None:
r = QTextLayout.FormatRange()
r.start, r.length, r.format = i, num, fmt
formats.append(r)
force_next_highlight = is_new_ud or ud.state != orig_state
return formats, force_next_highlight
def __init__(self, text='', width=0, font=None, img=None, max_height=100, align=Qt.AlignCenter):
self.layouts = []
self._position = Point(0, 0)
self.leading = self.line_spacing = 0
if font is not None:
fm = QFontMetrics(font, img)
self.leading = fm.leading()
self.line_spacing = fm.lineSpacing()
for text in text.split('<br>') if text else ():
text, formats = parse_text_formatting(sanitize(text))
l = QTextLayout(unescape_formatting(text), font, img)
l.setAdditionalFormats(formats)
to = QTextOption(align)
to.setWrapMode(QTextOption.WrapAtWordBoundaryOrAnywhere)
l.setTextOption(to)
l.beginLayout()
height = 0
while height + 3*self.leading < max_height:
line = l.createLine()
if not line.isValid():
break
line.setLineWidth(width)
height += self.leading
line.setPosition(QPointF(0, height))
height += line.height()
max_height -= height
l.endLayout()
if self.layouts:
self.layouts.append(self.leading)
else:
self._position = Point(l.position().x(), l.position().y())
self.layouts.append(l)
if self.layouts:
self.layouts.append(self.leading)
def __init__(self,
text='',
width=0,
font=None,
img=None,
max_height=100,
align=Qt.AlignCenter):
self.layouts = []
self._position = Point(0, 0)
self.leading = self.line_spacing = 0
if font is not None:
fm = QFontMetrics(font, img)
self.leading = fm.leading()
self.line_spacing = fm.lineSpacing()
for text in text.split('<br>') if text else ():
text, formats = parse_text_formatting(sanitize(text))
l = QTextLayout(unescape_formatting(text), font, img)
l.setAdditionalFormats(formats)
to = QTextOption(align)
to.setWrapMode(QTextOption.WrapAtWordBoundaryOrAnywhere)
l.setTextOption(to)
l.beginLayout()
height = 0
while height + 3 * self.leading < max_height:
line = l.createLine()
if not line.isValid():
break
line.setLineWidth(width)
height += self.leading
line.setPosition(QPointF(0, height))
height += line.height()
max_height -= height
l.endLayout()
if self.layouts:
self.layouts.append(self.leading)
else:
self._position = Point(l.position().x(), l.position().y())
self.layouts.append(l)
if self.layouts:
self.layouts.append(self.leading)
def viewItemDrawText(self, painter, option, rect, text, color, searchText=''): # noqa C901
'''
@note: most of codes taken from QCommonStylePrivate::viewItemDrawText
added highlighting and simplified for single-line textlayouts
@param painter QPainter
@param option QStyleOptionViewItem
@param rect QRect
@param text QString
@param color QColor
@param searchText QString
@return: int
'''
if not text:
return 0
fontMetrics = QFontMetrics(painter.font())
elidedText = fontMetrics.elidedText(text, option.textElideMode, rect.width())
textOption = QTextOption()
textOption.setWrapMode(QTextOption.NoWrap)
textOption.setAlignment(QStyle.visualAlignment(textOption.textDirection(),
option.displayAlignment))
textLayout = QTextLayout()
textLayout.setFont(painter.font())
textLayout.setText(elidedText)
textLayout.setTextOption(textOption)
if searchText:
# QList<int>
delimiters = []
searchStrings = [ item.strip() for item in searchText.split(' ') ]
searchStrings = [ item for item in searchStrings if item ]
# Look for longer parts first
searchStrings.sort(key=lambda x: len(x), reverse=True)
text0 = text.lower()
for string in searchStrings:
string0 = string.lower()
delimiter = text0.find(string0)
while delimiter != -1:
start = delimiter
end = delimiter + len(string)
alreadyContains = False
for idx in range(0, len(delimiters), 2):
dStart = delimiters[idx]
dEnd = delimiters[idx+1]
if dStart <= start and dEnd >= end:
alreadyContains = True
break
if not alreadyContains:
delimiters.append(start)
delimiters.append(end)
delimiter = text0.find(string0, end)
# We need to sort delimiters to properly paint all parts that user typed
delimiters.sort()
# If we don't find any match, just paint it withoutany highlight
if delimiters and len(delimiters) % 2 == 0:
highlightParts = [] # QList<QTextLayout::FormatRange>
while delimiters:
highlightedPart = QTextLayout.FormatRange()
start = delimiters.pop(0)
end = delimiters.pop(0)
highlightedPart.start = start
highlightedPart.length = end - start
highlightedPart.format.setFontWeight(QFont.Bold)
highlightedPart.format.setUnderlineStyle(QTextCharFormat.SingleUnderline)
highlightParts.append(highlightedPart)
textLayout.setAdditionalFormats(highlightParts)
# do layout
self._s_viewItemDrawText(textLayout, rect.width())
if textLayout.lineCount() <= 0:
return 0
textLine = textLayout.lineAt(0)
# if elidedText after highlighting is longer than available width then
# re-elide it and redo layout
diff = textLine.naturalTextWidth() - rect.width()
if diff > 0:
# TODO: ?
elidedText = fontMetrics.elidedText(elidedText, option.textElideMode,
rect.width() - diff)
textLayout.setText(elidedText)
# redo layout
self._s_viewItemDrawText(textLayout, rect.width())
if textLayout.lineCount() <= 0:
return 0
textLine = textLayout.lineAt(0)
# draw line
painter.setPen(color)
# qreal
width = max(rect.width(), textLayout.lineAt(0).width())
# QRect
layoutRect = QStyle.alignedRect(option.direction, option.displayAlignment,
QSize(int(width), int(textLine.height())), rect)
# QPointF
position = layoutRect.topLeft()
textLine.draw(painter, position)
return int(min(rect.width(), textLayout.lineAt(0).naturalTextWidth()))
