def paintEvent(self, event):
geom = super(AxisWidget, self).geometry()
h = geom.height()
w = geom.width()
box = QRect(2, 2, w - 4, h - 4)
horiz = QLine(2, h / 2, w - 2, h / 2)
vert = QLine(w / 2, 2, w / 2, h - 2)
targ = QPoint(self._x * (w - 4) / 2 + w / 2,
self._y * (h - 4) / 2 + h / 2)
plt = super(AxisWidget, self).palette()
linebrsh = plt.dark()
targetbrsh = plt.highlight()
linepen = QPen(linebrsh, 1, Qt.SolidLine, Qt.SquareCap)
targetpen = QPen(targetbrsh, 2, Qt.SolidLine, Qt.SquareCap)
qp = QPainter()
qp.begin(self)
qp.setPen(linepen)
qp.drawRect(box)
qp.drawLine(horiz)
qp.drawLine(vert)
qp.setPen(targetpen)
qp.drawEllipse(targ, 10, 10)
qp.end()
def paintEvent(self,event=None):
#global mouse_is_pressed
w_height = self.frameGeometry().height()
w_width = self.frameGeometry().width()
if w_height > w_width:
diam = w_width
else:
diam = w_height
radius = int(diam / 2) - 10
start_x = w_width/2 - radius
start_y = w_height/2 - radius
line1_x1 = w_width/2 + radius*0.707
line1_x2 = w_width/2 - radius*0.707
line1_y1 = w_height/2 - radius*0.707
line1_y2 = w_height/2 + radius*0.707
line2_x1 = w_width/2 - radius*0.707
line2_x2 = w_width/2 + radius*0.707
line2_y1 = line1_y1
line2_y2 = line1_y2
painter=QPainter()
painter.begin(self)
painter.setPen(QPen(Qt.black))
painter.drawLine(line1_x1, line1_y1, line1_x2, line1_y2) #cross
painter.drawLine(line2_x1, line2_y1, line2_x2, line2_y2)
painter.drawEllipse(start_x,start_y , (radius*2), (radius*2))
if self.mouse_is_pressed == True:
painter.setBrush(Qt.blue)
rad = self.get_radius(w_width, w_height, self.cursor_pos)
pos = self.get_pos(w_width, w_height, self.cursor_pos)
if (radius < rad):
rad = radius
self.draw_arc(painter, w_width, w_height, pos, rad)
self.cur_nradius = rad*1.0/radius
self.cur_sector = pos
else:
self.cur_nradius = 0.0
self.cur_sector = 0.0
painter.end()
#print self.mouse_is_pressed
pass
def paintEvent(self, event):
painter = QPainter(self)
#painter.begin(self)
# puts the arrow in the middle
painter.translate(self.width() / 2, self.height() / 2)
painter.rotate(self.angleRobo + self.angleVel)
line = QLineF(0, 0, self.width() / 2 - 3, 0)
headSize = min(self.width() / 20, 4)
points = QPolygonF()
points.append(QPointF(self.width() / 2 - headSize * 2, headSize))
points.append(QPointF(self.width() / 2 - headSize * 2, -headSize))
points.append(QPointF(self.width() / 2 - 3, 0))
pen = QPen(self.color, 2)
painter.setPen(pen)
brush = QBrush(self.color)
painter.setBrush(brush)
painter.drawLine(line)
painter.drawConvexPolygon(points)
def redraw(self, event):
"""
Draw timeline's "cells" (ie. boxes that represent seconds).
Taken from robot_monitor.message_timeline.on_paint
@deprecated: This way (using QPainter) didn't work as intended.
"""
#super(TimelineView, self).paintEvent(event)
# painter = QPainter(self)
## This yields warning that says:
## "QPainter::begin: Widget painting can only begin as a result of a paintEvent"
painter = QPainter()
painter.begin(self.viewport())
pen = QPen(
Qt.black,
2) #, Qt.SolidLine, Qt.RoundCap, Qt.RoundJoin) # Needs modified.
painter.setPen(pen)
is_enabled = self.isEnabled()
#(width_tl, height_tl) = self.size()
qsize = self.size()
width_tl = qsize.width()
height_tl = qsize.height()
length_tl = self._max_num_seconds + 1 - self._min_num_seconds
rospy.logdebug('paintEvent is_enabled=%s length_tl=%d', is_enabled,
length_tl)
value_size = width_tl / float(length_tl)
for i in xrange(0, length_tl):
brush = None
color_index = i + self._min_num_seconds
if (is_enabled):
qcolor = self._color_callback(color_index)
else:
qcolor = QColor('grey')
end_color = QColor(0.5 * QColor('red').value(),
0.5 * QColor('green').value(),
0.5 * QColor('blue').value())
#painter.setBrush(qcolor)
painter.setBrush(QBrush(qcolor))
start = i * value_size
end = (i + 1) * value_size
rect = QRect(start, 0, end, height_tl)
# dc.GradientFillLinear(wx.Rect(start, 0, end, height_tl),
# qcolor, end_color, wx.SOUTH)
rospy.logdebug('paintEvent i=%d start=%s end=%s height_tl=%s', i,
start, end, height_tl)
#painter.fillRect(QRect(start, end, 100, height_tl), qcolor)
painter.fillRect(rect, qcolor)
if (i > 0):
# dc.SetPen(wx.BLACK_PEN)
pen.setColor(Qt.black)
# dc.DrawLine(start, 0, start, height_tl)
painter.drawLine(start, 0, start, height_tl)
size_marker = QSize(20, 20)
marker_x = (
(self._xpos_marker - 1) * value_size + (value_size / 2.0) -
(self._timeline_marker.actualSize(size_marker).width() / 2.0))
# dc.DrawBitmap(self._timeline_marker, marker_x, 0, True)
qrect = QRect(marker_x, 0, size_marker.width(), size_marker.height())
self._timeline_marker.paint(painter, qrect)
rospy.logdebug(' paintEvent marker_x=%s', marker_x)
painter.end()