class TimelineView(QGraphicsView):
"""
This class draws a graphical representation of a timeline.
This is ONLY the bar and colored boxes.
When you instantiate this class, do NOT forget to call set_init_data to
set necessary data.
"""
paused = Signal(bool)
position_changed = Signal(int)
redraw = Signal()
def __init__(self, parent=None):
"""Cannot take args other than parent due to loadUi limitation."""
super(TimelineView, self).__init__(parent=parent)
self._timeline_marker = QIcon.fromTheme('system-search')
self._min = 0
self._max = 0
self._xpos_marker = -1
self._timeline_marker_width = 15
self._timeline_marker_height = 15
self._last_marker_at = -1
self.setUpdatesEnabled(True)
self._scene = QGraphicsScene(self)
self.setScene(self._scene)
self._levels = None
self.redraw.connect(self._signal_redraw)
def mouseReleaseEvent(self, event):
"""
:type event: QMouseEvent
"""
xpos = self.pos_from_x(event.x())
self.set_marker_pos(xpos)
def mousePressEvent(self, event):
"""
:type event: QMouseEvent
"""
# Pause the timeline
self.paused.emit(True)
xpos = self.pos_from_x(event.x())
self.set_marker_pos(xpos)
def mouseMoveEvent(self, event):
"""
:type event: QMouseEvent
"""
xpos = self.pos_from_x(event.x())
self.set_marker_pos(xpos)
def pos_from_x(self, x):
"""
Get the index in the timeline from the mouse click position
:param x: Position relative to self widget.
:return: Index
"""
width = self.size().width()
# determine value from mouse click
width_cell = width / float(max(len(self._levels), 1))
position = int(floor(x / width_cell))
if position == len(self._levels) - 1:
return -1
return position
@Slot(int)
def set_marker_pos(self, xpos):
"""
Set marker position from index
:param xpos: Marker index
"""
if self._levels is None:
rospy.logwarn('Called set_marker_pos before set_levels')
return
if xpos == -1:
# stick to the latest when position is -1
self._xpos_marker = -1
# check if we chose latest item
if self._last_marker_at != self._xpos_marker:
# update variable to check for change during next round
self._last_marker_at = self._xpos_marker
# emit change to all timeline_panes
self.position_changed.emit(self._xpos_marker)
self.redraw.emit()
return
self._xpos_marker = self._clamp(xpos, self._min, self._max)
if self._xpos_marker == self._last_marker_at:
# Clicked the same pos as last time.
return
elif self._xpos_marker >= len(self._levels):
# When clicked out-of-region
return
self._last_marker_at = self._xpos_marker
# Set timeline position. This broadcasts the message at that position
# to all of the other viewers
self.position_changed.emit(self._xpos_marker)
self.redraw.emit()
def _clamp(self, val, min, max):
"""
Judge if val is within the range given by min & max.
If not, return either min or max.
:type val: any number format
:type min: any number format
:type max: any number format
:rtype: int
"""
if (val < min):
return min
if (val > max):
return max
return val
@Slot(list)
def set_levels(self, levels):
self._levels = levels
self.redraw.emit()
@Slot()
def _signal_redraw(self):
"""
Gets called either when new msg comes in or when marker is moved by
user.
"""
if self._levels is None:
return
# update the limits
self._min = 0
self._max = len(self._levels) - 1
self._scene.clear()
qsize = self.size()
width_tl = qsize.width()
w = width_tl / float(max(len(self._levels), 1))
is_enabled = self.isEnabled()
for i, level in enumerate(self._levels):
h = self.viewport().height()
# Figure out each cell's color.
qcolor = QColor('grey')
if is_enabled and level is not None:
if level > DiagnosticStatus.ERROR:
# Stale items should be reported as errors unless all stale
level = DiagnosticStatus.ERROR
qcolor = util.level_to_color(level)
# TODO Use this code for adding gradation to the cell color.
# end_color = QColor(0.5 * QColor('red').value(),
# 0.5 * QColor('green').value(),
# 0.5 * QColor('blue').value())
self._scene.addRect(w * i, 0, w, h, QColor('white'), qcolor)
# Getting marker index.
xpos_marker = self._xpos_marker
# If marker is -1 for latest use (number_of_cells -1)
if xpos_marker == -1:
xpos_marker = len(self._levels) - 1
# Convert get horizontal pixel value of selected cell's center
xpos_marker_in_pixel = (xpos_marker * w + (w / 2.0) -
(self._timeline_marker_width / 2.0))
pos_marker = QPointF(xpos_marker_in_pixel, 0)
# Need to instantiate marker everytime since it gets deleted
# in every loop by scene.clear()
timeline_marker = self._instantiate_tl_icon()
timeline_marker.setPos(pos_marker)
self._scene.addItem(timeline_marker)
def _instantiate_tl_icon(self):
timeline_marker_icon = QIcon.fromTheme('system-search')
timeline_marker_icon_pixmap = timeline_marker_icon.pixmap(
self._timeline_marker_width, self._timeline_marker_height)
return QGraphicsPixmapItem(timeline_marker_icon_pixmap)
class TimelineView(QGraphicsView):
"""
This class draws a graphical representation of a timeline.
This is ONLY the bar and colored boxes.
When you instantiate this class, do NOT forget to call set_init_data to
set necessary data.
"""
redraw = Signal()
def __init__(self, parent):
"""Cannot take args other than parent due to loadUi limitation."""
super(TimelineView, self).__init__()
self._parent = parent
self._timeline_marker = QIcon.fromTheme('system-search')
self._min = 0
self._max = 0
self._xpos_marker = 5
self._timeline_marker_width = 15
self._timeline_marker_height = 15
self._last_marker_at = 2
self.redraw.connect(self._slot_redraw)
self._timeline = None
self.setUpdatesEnabled(True)
self._scene = QGraphicsScene(self)
self.setScene(self._scene)
def set_timeline(self, timeline, name=None):
assert(self._timeline is None)
self._name = name
self._timeline = timeline
self._timeline.message_updated.connect(self._updated)
@Slot()
def _updated(self):
"""
Update the widget whenever we receive a new message
"""
# update the limits
self._min = 0
self._max = len(self._timeline)-1
# update the marker position
self._xpos_marker = self._timeline.get_position()
# redraw
self.redraw.emit()
def mouseReleaseEvent(self, event):
"""
:type event: QMouseEvent
"""
xpos = self.pos_from_x(event.x())
self.set_marker_pos(xpos)
def mousePressEvent(self, event):
"""
:type event: QMouseEvent
"""
assert(self._timeline is not None)
# Pause the timeline
self._timeline.set_paused(True)
xpos = self.pos_from_x(event.x())
self.set_marker_pos(xpos)
def mouseMoveEvent(self, event):
"""
:type event: QMouseEvent
"""
xpos = self.pos_from_x(event.x())
self.set_marker_pos(xpos)
def pos_from_x(self, x):
"""
Get the index in the timeline from the mouse click position
:param x: Position relative to self widget.
:return: Index
"""
width = self.size().width()
# determine value from mouse click
width_cell = width / float(len(self._timeline))
return int(floor(x / width_cell))
def set_marker_pos(self, xpos):
"""
Set marker position from index
:param xpos: Marker index
"""
assert(self._timeline is not None)
self._xpos_marker = self._clamp(xpos, self._min, self._max)
if self._xpos_marker == self._last_marker_at:
# Clicked the same pos as last time.
return
elif self._xpos_marker >= len(self._timeline):
# When clicked out-of-region
return
self._last_marker_at = self._xpos_marker
# Set timeline position. This broadcasts the message at that position
# to all of the other viewers
self._timeline.set_position(self._xpos_marker)
# redraw
self.redraw.emit()
def _clamp(self, val, min, max):
"""
Judge if val is within the range given by min & max.
If not, return either min or max.
:type val: any number format
:type min: any number format
:type max: any number format
:rtype: int
"""
if (val < min):
return min
if (val > max):
return max
return val
@Slot()
def _slot_redraw(self):
"""
Gets called either when new msg comes in or when marker is moved by
user.
"""
self._scene.clear()
qsize = self.size()
width_tl = qsize.width()
w = width_tl / float(max(len(self._timeline), 1))
is_enabled = self.isEnabled()
if self._timeline is not None:
for i, m in enumerate(self._timeline):
h = self.viewport().height()
# Figure out each cell's color.
qcolor = QColor('grey')
if is_enabled:
qcolor = self._get_color_for_value(m)
# TODO Use this code for adding gradation to the cell color.
# end_color = QColor(0.5 * QColor('red').value(),
# 0.5 * QColor('green').value(),
# 0.5 * QColor('blue').value())
self._scene.addRect(w * i, 0, w, h, QColor('white'), qcolor)
# Setting marker.
xpos_marker = (self._xpos_marker * w +
(w / 2.0) - (self._timeline_marker_width / 2.0))
pos_marker = QPointF(xpos_marker, 0)
# Need to instantiate marker everytime since it gets deleted
# in every loop by scene.clear()
timeline_marker = self._instantiate_tl_icon()
timeline_marker.setPos(pos_marker)
self._scene.addItem(timeline_marker)
def _instantiate_tl_icon(self):
timeline_marker_icon = QIcon.fromTheme('system-search')
timeline_marker_icon_pixmap = timeline_marker_icon.pixmap(
self._timeline_marker_width,
self._timeline_marker_height)
return QGraphicsPixmapItem(timeline_marker_icon_pixmap)
def _get_color_for_value(self, msg):
"""
:type msg: DiagnosticArray
"""
if self._name is not None:
# look up name in msg; return grey if not found
status = util.get_status_by_name(msg, self._name)
if status is not None:
return util.level_to_color(status.level)
else:
return QColor('grey')
return util.get_color_for_message(msg)
class TimelineView(QGraphicsView):
"""
This class draws a graphical representation of a timeline.
This is ONLY the bar and colored boxes.
When you instantiate this class, do NOT forget to call set_init_data to
set necessary data.
"""
redraw = Signal()
def __init__(self, parent):
"""Cannot take args other than parent due to loadUi limitation."""
super(TimelineView, self).__init__()
self._parent = parent
self._timeline_marker = QIcon.fromTheme('system-search')
self._min = 0
self._max = 0
self._xpos_marker = 5
self._timeline_marker_width = 15
self._timeline_marker_height = 15
self._last_marker_at = 2
self.redraw.connect(self._slot_redraw)
self._timeline = None
self.setUpdatesEnabled(True)
self._scene = QGraphicsScene(self)
self.setScene(self._scene)
def set_timeline(self, timeline, name=None):
assert(self._timeline is None)
self._name = name
self._timeline = timeline
self._timeline.message_updated.connect(self._updated)
@Slot()
def _updated(self):
"""
Update the widget whenever we receive a new message
"""
# update the limits
self._min = 0
self._max = len(self._timeline)-1
# update the marker position
self._xpos_marker = self._timeline.get_position()
# redraw
self.redraw.emit()
def mouseReleaseEvent(self, event):
"""
:type event: QMouseEvent
"""
xpos = self.pos_from_x(event.x())
self.set_marker_pos(xpos)
def mousePressEvent(self, event):
"""
:type event: QMouseEvent
"""
assert(self._timeline is not None)
# Pause the timeline
self._timeline.set_paused(True)
xpos = self.pos_from_x(event.x())
self.set_marker_pos(xpos)
def mouseMoveEvent(self, event):
"""
:type event: QMouseEvent
"""
xpos = self.pos_from_x(event.x())
self.set_marker_pos(xpos)
def pos_from_x(self, x):
"""
Get the index in the timeline from the mouse click position
:param x: Position relative to self widget.
:return: Index
"""
width = self.size().width()
# determine value from mouse click
width_cell = width / float(max(len(self._timeline), 1))
return int(floor(x / width_cell))
def set_marker_pos(self, xpos):
"""
Set marker position from index
:param xpos: Marker index
"""
assert(self._timeline is not None)
self._xpos_marker = self._clamp(xpos, self._min, self._max)
if self._xpos_marker == self._last_marker_at:
# Clicked the same pos as last time.
return
elif self._xpos_marker >= len(self._timeline):
# When clicked out-of-region
return
self._last_marker_at = self._xpos_marker
# Set timeline position. This broadcasts the message at that position
# to all of the other viewers
self._timeline.set_position(self._xpos_marker)
# redraw
self.redraw.emit()
def _clamp(self, val, min, max):
"""
Judge if val is within the range given by min & max.
If not, return either min or max.
:type val: any number format
:type min: any number format
:type max: any number format
:rtype: int
"""
if (val < min):
return min
if (val > max):
return max
return val
@Slot()
def _slot_redraw(self):
"""
Gets called either when new msg comes in or when marker is moved by
user.
"""
self._scene.clear()
qsize = self.size()
width_tl = qsize.width()
w = width_tl / float(max(len(self._timeline), 1))
is_enabled = self.isEnabled()
if self._timeline is not None:
for i, m in enumerate(self._timeline):
h = self.viewport().height()
# Figure out each cell's color.
qcolor = QColor('grey')
if is_enabled:
qcolor = self._get_color_for_value(m)
# TODO Use this code for adding gradation to the cell color.
# end_color = QColor(0.5 * QColor('red').value(),
# 0.5 * QColor('green').value(),
# 0.5 * QColor('blue').value())
self._scene.addRect(w * i, 0, w, h, QColor('white'), qcolor)
# Setting marker.
xpos_marker = (self._xpos_marker * w +
(w / 2.0) - (self._timeline_marker_width / 2.0))
pos_marker = QPointF(xpos_marker, 0)
# Need to instantiate marker everytime since it gets deleted
# in every loop by scene.clear()
timeline_marker = self._instantiate_tl_icon()
timeline_marker.setPos(pos_marker)
self._scene.addItem(timeline_marker)
def _instantiate_tl_icon(self):
timeline_marker_icon = QIcon.fromTheme('system-search')
timeline_marker_icon_pixmap = timeline_marker_icon.pixmap(
self._timeline_marker_width,
self._timeline_marker_height)
return QGraphicsPixmapItem(timeline_marker_icon_pixmap)
def _get_color_for_value(self, msg):
"""
:type msg: DiagnosticArray
"""
if self._name is not None:
# look up name in msg; return grey if not found
status = util.get_status_by_name(msg, self._name)
if status is not None:
return util.level_to_color(status.level)
else:
return QColor('grey')
return util.get_color_for_message(msg)
class Widget(QGraphicsView):
def __init__(self, parent=None):
super(Widget, self).__init__(parent)
self.setWindowTitle('U-CTF View')
self._scene = QGraphicsScene()
self._scene.setBackgroundBrush(Qt.white)
# game cube grass area
grass_color = QColor(0, 255, 0, 50)
self._scene.addRect(
0, 0, CUBE_LENGTH, CUBE_LENGTH,
QPen(grass_color), QBrush(grass_color))
# blue team area
blue_color = QColor(0, 0, 255, 50)
self._scene.addRect(
0, -SUPPORT_AREA_DEPTH, CUBE_LENGTH, SUPPORT_AREA_DEPTH,
QPen(blue_color), QBrush(blue_color))
# gold team area
gold_color = QColor(255, 215, 0, 50)
self._scene.addRect(
0, CUBE_LENGTH, CUBE_LENGTH, SUPPORT_AREA_DEPTH,
QPen(gold_color), QBrush(gold_color))
# penalty area
orange_color = QColor(0, 200, 0, 50)
self._scene.addRect(
CUBE_LENGTH, 0, SUPPORT_AREA_DEPTH, CUBE_LENGTH,
QPen(orange_color), QBrush(orange_color))
# rotate view to match the coordinate system of the game cube
self.rotate(180)
self.setScene(self._scene)
# pens and brushes for the vehicles
self._pens = {
'blue': QPen(Qt.blue, 2),
'gold': QPen(QColor(191, 151, 0), 2),
}
self._brushes = {
'blue': QBrush(Qt.blue),
'gold': QBrush(QColor(191, 151, 0)),
}
self._vehicles = {}
def update_vehicle(self, color, mav_id, vehicle_type, global_pos):
if mav_id not in self._vehicles:
item = self._create_vehicle_item(color, mav_id, vehicle_type)
self._scene.addItem(item)
self._vehicles[mav_id] = item
else:
item = self._vehicles[mav_id]
cube_pos = global_to_cube(global_pos['lat'], global_pos['lon'])
item.setPos(*cube_pos)
# set visible area
padding = 10
self.fitInView(
-SUPPORT_AREA_DEPTH - padding, -SUPPORT_AREA_DEPTH - padding,
CUBE_LENGTH + 2.0 * (SUPPORT_AREA_DEPTH + 2),
CUBE_LENGTH + 2.0 * (SUPPORT_AREA_DEPTH + padding),
Qt.KeepAspectRatio)
def _create_vehicle_item(self, color, mav_id, vehicle_type):
if vehicle_type == MAV_TYPE_QUADROTOR:
# draw cross
item = QGraphicsPolygonItem(QPolygonF([
QPointF(0, 0),
QPointF(-3, -3),
QPointF(3, 3),
QPointF(0, 0),
QPointF(-3, 3),
QPointF(3, -3),
QPointF(0, 0),
]))
elif vehicle_type == MAV_TYPE_FIXED_WING:
# draw circle
item = QGraphicsEllipseItem(-3, -3, 6, 6)
else:
# draw square
item = QGraphicsRectItem(-3, -3, 6, 6)
item.setBrush(self._brushes[color])
item.setPen(self._pens[color])
item.setToolTip('%s #%d (%s)' % (color, mav_id, vehicle_type))
return item