def adjust(self):
"""Adjust the item's geometry in response to changes."""
metrics = QFontMetricsF(self.font())
# Get bounding rectangle for full text
self._bounding_rect = metrics.boundingRect(self.text())
# Constrain by maximum width
if self.maximumWidth() is not None:
self._bounding_rect.setWidth(self.maximumWidth())
# Compute elided text
self._elided_text = metrics.elidedText(self.text(), self.elideMode(),
self.boundingRect().width())
# Get bounding rectangle for elided text
self._bounding_rect = metrics.boundingRect(self.elidedText())
# It seems that for small characters like "..." the bounding rect returned is too small. Adjust it by a small
# value.
metrics_correction = px(1 / 72)
self._bounding_rect.adjust(-metrics_correction, 0, metrics_correction,
0)
# Move origin point according to the alignment
if self.alignMode() & Qt.AlignLeft:
self._bounding_rect.moveLeft(0)
elif self.alignMode() & Qt.AlignRight:
self._bounding_rect.moveRight(0)
else:
self._bounding_rect.moveLeft(-self._bounding_rect.width() / 2)
# Set background rect
self.background.setRect(self.boundingRect())
def paint(self, painter: QPainter, option: QStyleOptionGraphicsItem,
index: QWidget) -> None:
"""
Paint the graphics of the action wrapper including action name, number, and ports.
:param painter: This draws the widget.
:type painter: QPainter
:param option: Option for the style of graphic.
:type option: QStyleOptionGraphicsItem
:param index: Index for the painted graphic.
:type index: QWidget
:return: None
:rtype: NoneType
"""
ActionGraphics.paint(self, painter, option, index)
# Get dimensions of the action
x, y, width, height = self.getActionRect(self._action.getInputPorts(),
self._action.getOutputPorts())
# Draw the number tag.
number = str(
self._action.getParent().getActions().index(self._action) + 1)
offset = 5
radius = 15
size = ActionGraphics.H_SPACE / 2 - offset * 2
painter.setBrush(QColor(29, 110, 37))
painter.drawRoundedRect(QRectF(x + offset, y + offset, size, size),
radius, radius)
painter.setPen(ActionWrapperGraphics.TAG_TEXT_COLOR)
painter.setBrush(ActionWrapperGraphics.TAG_TEXT_COLOR)
painter.setFont(ActionWrapperGraphics.TAG_FONT)
fm = QFontMetricsF(ActionWrapperGraphics.TAG_FONT)
pixelsWide = fm.width(number)
pixelsHigh = fm.height()
# TODO: fix text positioning - font metrics aren't working well
painter.drawText(x + offset + size / 2 - pixelsWide,
y + offset + size / 2 + pixelsHigh / 2, number)
# Draw the name of the action
painter.setPen(ActionWrapperGraphics.NAME_TEXT_COLOR)
painter.setBrush(ActionWrapperGraphics.NAME_TEXT_COLOR)
painter.setFont(ActionWrapperGraphics.NAME_FONT)
fm = QFontMetricsF(ActionWrapperGraphics.NAME_FONT)
br = fm.boundingRect(self._action.getName())
# TODO: fix text positioning - font metrics aren't working well
t = fm.elidedText(self._action.getName(), Qt.ElideRight,
self._width - offset * 2)
painter.drawText(x + offset, br.height(), t)