def paintEvent(self, event):
if self.elideMode == 0: # if not set then behave as a normal label
QLabel.paintEvent(self, event)
else:
QFrame.paintEvent(self, event)
painter = QPainter(self)
painter.setFont(self.font())
# gets the spacing between lines
lineSpacing = self.fontMetrics().lineSpacing()
y = 0
textLayout = QTextLayout(self.text(), self.font())
textLayout.beginLayout()
# loops til the end of line
while True:
# create a line
line = textLayout.createLine()
if line.isValid() != True:
break
self.lines += 1
# set limit of line width
line.setLineWidth(self.width())
# calculate position of next line
nextLineY = y + lineSpacing
if self.height() >= nextLineY + lineSpacing:
line.draw(painter, QPoint(0, y))
y = nextLineY
else: # regenerate each line so that they do not overflow the width of widget
lastLine = self.text()[line.textStart():len(self.text())]
elidedLastLine = self.fontMetrics().elidedText(
lastLine, Qt.ElideRight, self.width())
painter.drawText(
QPoint(0, y + self.fontMetrics().ascent()),
elidedLastLine)
line = textLayout.createLine()
break
textLayout.endLayout()
def text_layout(self, text, width, font, font_metrics): "Lays out wrapped text" text_option = QTextOption(Qt.AlignCenter) text_option.setUseDesignMetrics(True) text_option.setWrapMode(QTextOption.WordWrap) layout = QTextLayout(text, font) layout.setTextOption(text_option) leading = font_metrics.leading() height = 0 layout.setCacheEnabled(True) layout.beginLayout() while True: line = layout.createLine() if not line.isValid(): break line.setLineWidth(width) height += leading line.setPosition(QPointF(0, height)) height += line.height() layout.endLayout() return layout