def draw_icon(self, painter):
path = QPainterPath(QPointF(0, 0.3))
path.lineTo(0, 0.9)
path.lineTo(1, 0.3)
path.lineTo(1, 0.9)
path.closeSubpath()
painter.drawPath(path)
painter.drawLine(QPointF(0.5, 0.6), QPointF(0.5, 0.15))
# Draw the arrow end-caps
painter.setBrush(QBrush(QColor(0, 0, 0)))
top_arrow_point = QPointF(0.65, 0.36)
arrow = QPolygonF([
QPointF(-0.09, 0.0),
QPointF(-0.005, 0.0),
QPointF(-0.005, 0.8),
QPointF(0.005, 0.8),
QPointF(0.005, 0.0),
QPointF(0.09, 0.0),
QPointF(0.00, -0.25)
])
t = QTransform()
t.rotate(35)
top_arrow_r = t.map(arrow)
arrow_l = top_arrow_r.translated(top_arrow_point)
painter.drawPolygon(arrow_l)
painter.setBrush(self._interlock_brush)
painter.drawRect(QRectF(0.3, 0, 0.4, 0.15))
def monitor_images(self):
while self.active:
if self.last_frame:
image_array = self.style.stylize(self.last_frame)
image = QImage(image_array.data, image_array.shape[1],
image_array.shape[0], image_array.strides[0],
QImage.Format_RGB888)
rotating = QTransform()
rotating.scale(-1, 1) # mirror
rotating.rotate(settings.ROTATE_IMAGE)
image = image.transformed(rotating)
self.image_signal.emit(StyledCapture(image, self.style.name))
# check for stop/changes
QApplication.processEvents()
def labelTransformation(self, pos, size):
"""
Calculate the transformation that is needed to paint a label
depending on its alignment and rotation.
:param QPointF pos: Position where to paint the label
:param QSizeF size: Size of the label
:return: Transformation matrix
.. seealso::
:py:meth:`setLabelAlignment()`, :py:meth:`setLabelRotation()`
"""
transform = QTransform()
transform.translate(pos.x(), pos.y())
transform.rotate(self.labelRotation())
flags = self.labelAlignment()
if flags == 0:
flags = self.Flags[self.alignment()]
if flags & Qt.AlignLeft:
x = -size.width()
elif flags & Qt.AlignRight:
x = 0.0
else:
x = -(0.5 * size.width())
if flags & Qt.AlignTop:
y = -size.height()
elif flags & Qt.AlignBottom:
y = 0
else:
y = -(0.5 * size.height())
transform.translate(x, y)
return transform
def draw_icon(self, painter):
painter.drawEllipse(QPointF(0.5, 0.5), 0.5, 0.5)
painter.drawChord(QRectF(0.0, 0.0, 1.0, 1.0), 45 * 16, -120 * 16)
painter.drawChord(QRectF(0.0, 0.0, 1.0, 1.0), 135 * 16, 120 * 16)
bottom_arrow_point = QPointF(0.5, 0.8)
painter.drawLine(bottom_arrow_point, QPointF(0.5, 0.7))
curve_start = QPointF(0.5, 0.7)
bend_angle = 25
curve_end_l = QPointF(
0.4 * math.cos(math.radians(90 + bend_angle)) + 0.5,
-0.4 * math.sin(math.radians(90 + bend_angle)) + 0.5)
c1 = QPointF(0.5, 0.4)
path = QPainterPath(curve_start)
path.quadTo(c1, curve_end_l)
painter.drawPath(path)
curve_end_r = QPointF(
0.4 * math.cos(math.radians(90 - bend_angle)) + 0.5,
-0.4 * math.sin(math.radians(90 - bend_angle)) + 0.5)
path = QPainterPath(curve_start)
path.quadTo(c1, curve_end_r)
painter.drawPath(path)
# Draw the arrow end-caps
painter.setBrush(QBrush(QColor(0, 0, 0)))
arrow = QPolygonF(
[QPointF(-0.025, 0.0),
QPointF(0.025, 0.0),
QPointF(0.0, 0.025)])
painter.drawPolygon(arrow.translated(bottom_arrow_point))
t = QTransform()
t.rotate(180.0 - 25.0)
arrow_l = t.map(arrow)
arrow_l = arrow_l.translated(curve_end_l)
painter.drawPolygon(arrow_l)
t = QTransform()
t.rotate(180.0 + 25.0)
arrow_r = t.map(arrow)
arrow_r = arrow_r.translated(curve_end_r)
painter.drawPolygon(arrow_r)
def draw_icon(self, painter):
painter.drawEllipse(QPointF(0.5, 0.5), 0.5, 0.5)
painter.drawChord(QRectF(0.0, 0.0, 1.0, 1.0), 90 * 16, -100 * 16)
painter.drawChord(QRectF(0.0, 0.0, 1.0, 1.0), 135 * 16, 100 * 16)
# Draw the arrow end-caps
painter.setBrush(QBrush(QColor(0, 0, 0)))
top_arrow_point = QPointF(0.35, 0.15)
arrow = QPolygonF([
QPointF(-0.08, 0.0),
QPointF(-0.005, 0.0),
QPointF(-0.005, 0.15),
QPointF(0.005, 0.15),
QPointF(0.005, 0.0),
QPointF(0.08, 0.0),
QPointF(0.00, -0.08)
])
t = QTransform()
t.rotate(-25)
top_arrow_r = t.map(arrow)
arrow_l = top_arrow_r.translated(top_arrow_point)
painter.drawPolygon(arrow_l)
bottom_left_arrow_point = QPointF(0.35, 0.89)
t = QTransform()
t.rotate(180.0 + 25.0)
arrow_r = t.map(arrow)
arrow_r = arrow_r.translated(bottom_left_arrow_point)
painter.drawPolygon(arrow_r)
bottom_right_arrow_point = QPointF(0.85, 0.65)
t = QTransform()
t.rotate(180.0 - 65.0)
arrow_r = t.map(arrow)
arrow_r = arrow_r.translated(bottom_right_arrow_point)
painter.drawPolygon(arrow_r)
import os.path as osp app = QApplication([]) # --- Construct custom symbol --- path = QPainterPath() path.moveTo(0, 8) path.lineTo(0, 5) path.lineTo(-3, 5) path.lineTo(0, 0) path.lineTo(3, 5) path.lineTo(0, 5) transform = QTransform() transform.rotate(-30.0) path = transform.map(path) pen = QPen(Qt.black, 2) pen.setJoinStyle(Qt.MiterJoin) symbol = QwtSymbol() symbol.setPen(pen) symbol.setBrush(Qt.red) symbol.setPath(path) symbol.setPinPoint(QPointF(0.0, 0.0)) symbol.setSize(10, 14) # --- Test it within a simple plot --- curve = QwtPlotCurve()
