def __init__(self, shape, text, parent=None):
QGraphicsItemGroup.__init__(self, parent=parent)
text = QGraphicsSimpleTextItem(text, parent=shape)
br = shape.boundingRect()
x = br.right() + 10
y = br.top() + 3
text.setPos(x, y)
self.addToGroup(shape)
self._text = text
def __init__(self, shape, text, parent=None):
QGraphicsItemGroup.__init__(self, parent=parent)
text = QGraphicsSimpleTextItem(text, parent=shape)
br = shape.boundingRect()
x = br.right() + 10
y = br.top() + 3
text.setPos(x, y)
self.addToGroup(shape)
self._text = text
def __init__(self, pos=None, parent=None):
QGraphicsObject.__init__(self, parent=parent)
MapItem.__init__(self)
self.setZValue(200.0)
self._anchorPos = QPointF(pos) if pos is not None else QPointF(
10.0, 10.0)
self._border = QGraphicsRectItem(parent=self)
self._border.setPen(QPen(Qt.NoPen))
self._border.setBrush(QBrush(QColor(190, 190, 190, 160)))
self._entries = list()
self._entriesGroup = QGraphicsItemGroup(parent=self)
def drawRGBACrosshair(self):
"""
rgba_topline_item
rgba_botline_item
rgba_leftline_item
rgba_rightline_item:
rgba_crosshair_item_circle: center portion of crosshair
"""
# vertical line
self.rgba_topline_item = DualColoredLineSegment()
self.rgba_topline_item.setLine(0, 0, 0, self.height())
self.rgba_botline_item = DualColoredLineSegment()
self.rgba_botline_item.setLine(0, 0, 0, self.height())
# horizontal line
self.rgba_leftline_item = DualColoredLineSegment()
self.rgba_leftline_item.setLine(0, 0, self.width(), 0)
self.rgba_rightline_item = DualColoredLineSegment()
self.rgba_rightline_item.setLine(0, 0, self.width(), 0)
# crosshair circle
self.rgba_crosshair_item_circle = QGraphicsEllipseItem()
self.rgba_crosshair_item_circle.setRect(
-(self.CROSSHAIR_RADIUS * 0.5),
-(self.CROSSHAIR_RADIUS * 0.5),
self.CROSSHAIR_RADIUS,
self.CROSSHAIR_RADIUS
)
# add items
self.rgba_crosshair_item = QGraphicsItemGroup()
self.rgba_crosshair_item.addToGroup(self.rgba_crosshair_item_circle)
self.rgba_crosshair_item.addToGroup(self.rgba_topline_item)
self.rgba_crosshair_item.addToGroup(self.rgba_botline_item)
self.rgba_crosshair_item.addToGroup(self.rgba_leftline_item)
self.rgba_crosshair_item.addToGroup(self.rgba_rightline_item)
self.addItem(self.rgba_crosshair_item)
def __init__(self, pos=None, parent=None):
QGraphicsObject.__init__(self, parent=parent)
MapItem.__init__(self)
self.setZValue(200.0)
self._anchorPos = QPointF(pos) if pos is not None else QPointF(10.0, 10.0)
self._border = QGraphicsRectItem(parent=self)
self._border.setPen(QPen(Qt.NoPen))
self._border.setBrush(QBrush(QColor(190, 190, 190, 160)))
self._entries = list()
self._entriesGroup = QGraphicsItemGroup(parent=self)
def __init__(self, longitudes, latitudes, parent=None):
QGraphicsItem.__init__(self, parent=parent)
MapItem.__init__(self)
assert len(longitudes) == len(latitudes)
assert len(longitudes) >= 2
self._longitudes = np.array(longitudes, dtype=np.float64)
self._latitudes = np.array(latitudes, dtype=np.float64)
# Setup internal lines
linesGroup = QGraphicsItemGroup(parent=self)
self._linesGroup = linesGroup
self._lines = [
QGraphicsLineItem(parent=linesGroup)
for i in iterRange(len(longitudes) - 1)
]
class MapLegendItem(QGraphicsObject, MapItem):
QtParentClass = QGraphicsObject
def __init__(self, pos=None, parent=None):
QGraphicsObject.__init__(self, parent=parent)
MapItem.__init__(self)
self.setZValue(200.0)
self._anchorPos = QPointF(pos) if pos is not None else QPointF(10.0, 10.0)
self._border = QGraphicsRectItem(parent=self)
self._border.setPen(QPen(Qt.NoPen))
self._border.setBrush(QBrush(QColor(190, 190, 190, 160)))
self._entries = list()
self._entriesGroup = QGraphicsItemGroup(parent=self)
def _sceneChanged(self, oldScene, newScene):
if oldScene is not None:
oldScene.sceneRectChanged.disconnect(self.setSceneRect)
if newScene is not None:
newScene.sceneRectChanged.connect(self.setSceneRect)
# Setup the new position of the item
self.setSceneRect(newScene.sceneRect())
def updatePosition(self, scene):
pass
def addPoint(self, text, color, border=None, size=20.0):
shape = QGraphicsEllipseItem(size / 2.0, size / 2.0, size, size)
brush = makeBrush(color)
shape.setBrush(brush)
shape.setPen(makePen(border))
self.addEntry(MapLegendEntryItem(shape, text))
def addRect(self, text, color, border=None, size=20.0):
shape = QGraphicsRectItem(size / 2.0, size / 2.0, size, size)
brush = makeBrush(color)
shape.setBrush(brush)
shape.setPen(makePen(border))
self.addEntry(MapLegendEntryItem(shape, text))
def addLine(self, text, color, width=1.):
shape = QGraphicsLineItem(10., 10., 20., 20.)
pen = makePen(color, width=width)
shape.setPen(pen)
self.addEntry(MapLegendEntryItem(shape, text))
def addEntry(self, entry):
self._entries.append(entry)
self._entriesGroup.addToGroup(entry)
self._updateLayout()
def boundingRect(self):
return self._border.boundingRect()
def paint(*args, **kwargs):
pass
@Slot(QRectF)
def setSceneRect(self, rect):
self.setPos(rect.topLeft() + self._anchorPos)
def _updateLayout(self):
self.prepareGeometryChange()
bottom = 0.0
left = 0.0
right = 0.0
for entry in self._entries:
entry.setPos(left, bottom)
bottom += entry.bottom() + 5.0
right = max(right, entry.right() + 5.0)
self._border.setRect(0.0, 0.0, right, bottom + 5.0)
def pen(self):
"""Pen for the background of the legend
Returns:
QPen: Pen for the background of the legend
"""
return self._border.pen()
def brush(self):
"""Brush for the background of the legend
Returns:
QBrush: Brush for the background of the legend
"""
return self._border.brush()
def setPen(self, *args, **kwargs):
"""Set the pen for the background of the legend
The arguments are the same of the :func:`makePen` function
"""
return self._border.setPen(makePen(*args, **kwargs))
def setBrush(self, *args, **kwargs):
"""Set the brush for the background of the legend
The arguments are the same of the :func:`makeBrush` function
"""
return self._border.setBrush(makeBrush(*args, **kwargs))
class ColorGraphicsScene(QGraphicsScene):
"""
The widget that is responsible for displaying the color gradient to the user
"""
def __init__(self, parent=None):
super(ColorGraphicsScene, self).__init__(parent)
# setup default attrs
self.CROSSHAIR_RADIUS = 10
self._rgba_crosshair_pos = QPoint(0, 0)
self._linear_crosshair_pos = QPoint(0, 0)
self._linear_crosshair_size = 15
# create scene
self.setSceneRect(0, 0, 500, 500)
self.gradient_type = attrs.RGBA
self.drawRGBACrosshair()
self.drawLinearCrosshair()
self._drawRGBAForegroundItem()
""" DRAW GRADIENTS """
def drawGradient(self):
"""
Draws the gradient that will be displayed to the user
"""
_gradient = draw.drawColorTypeGradient(self.gradient_type, self.width(), self.height())
direction = self.linearCrosshairDirection()
self.rgba_foreground.hide()
# show gradient for RGBA gradient
if self.gradient_type == attrs.RGBA:
"""
for some reason the darker it gets the harder of a time the picker has
and the steps become larger and larger =/
"""
# get value
main_widget = getWidgetAncestor(self.views()[0], ColorGradientDelegate)
value = main_widget.color().valueF()
self.rgba_foreground.updateSize(QRectF(0, 0, self.width(), self.height()))
self.rgba_foreground.updateGradient(value, self.width(), self.height())
self.rgba_foreground.show()
# update linear gradient
else:
if direction == Qt.Horizontal:
_gradient.setFinalStop(QPoint(self.width(), 0))
elif direction == Qt.Vertical:
# TODO Move this to draw utils (gradient inversion)
_gradient.setStart(QPoint(0, self.height()))
_gradient.setFinalStop(QPoint(0, 0))
self.setBackgroundBrush(QBrush(_gradient))
""" PROPERTIES """
@property
def gradient_type(self):
return self._gradient_type
@gradient_type.setter
def gradient_type(self, gradient_type):
self._gradient_type = gradient_type
""" CROSSHAIR"""
def drawLinearCrosshair(self):
"""
Creates the initial linear crosshair. Note that this is hard coded to setup
to be drawn horizontally. You can update the direction with
setLinearCrosshairDirection(Qt.Direction) on the
ColorInputWidget.
"""
self.linear_crosshair_item = ColorPickerItem1D()
self.linear_crosshair_item.setWidth(self.width())
self.linear_crosshair_item.setHeight(self.height())
self.linear_crosshair_item.setDirection(Qt.Horizontal)
# add group item
self.addItem(self.linear_crosshair_item)
# hide by default
self.linear_crosshair_item.hide()
def setLinearCrosshairDirection(self, direction):
"""
Sets the direction of travel of the linear crosshair. This will also update
the display of the crosshair
Args:
direction (Qt.Vertical | Qt. Horizontal): what direction this gradient will be
displayed as.
"""
# set direction
self._linear_crosshair_direction = direction
self.linear_crosshair_item.setDirection(direction)
def linearCrosshairDirection(self):
return self._linear_crosshair_direction
""" RGBA """
def drawRGBACrosshair(self):
"""
rgba_topline_item
rgba_botline_item
rgba_leftline_item
rgba_rightline_item:
rgba_crosshair_item_circle: center portion of crosshair
"""
# vertical line
self.rgba_topline_item = DualColoredLineSegment()
self.rgba_topline_item.setLine(0, 0, 0, self.height())
self.rgba_botline_item = DualColoredLineSegment()
self.rgba_botline_item.setLine(0, 0, 0, self.height())
# horizontal line
self.rgba_leftline_item = DualColoredLineSegment()
self.rgba_leftline_item.setLine(0, 0, self.width(), 0)
self.rgba_rightline_item = DualColoredLineSegment()
self.rgba_rightline_item.setLine(0, 0, self.width(), 0)
# crosshair circle
self.rgba_crosshair_item_circle = QGraphicsEllipseItem()
self.rgba_crosshair_item_circle.setRect(
-(self.CROSSHAIR_RADIUS * 0.5),
-(self.CROSSHAIR_RADIUS * 0.5),
self.CROSSHAIR_RADIUS,
self.CROSSHAIR_RADIUS
)
# add items
self.rgba_crosshair_item = QGraphicsItemGroup()
self.rgba_crosshair_item.addToGroup(self.rgba_crosshair_item_circle)
self.rgba_crosshair_item.addToGroup(self.rgba_topline_item)
self.rgba_crosshair_item.addToGroup(self.rgba_botline_item)
self.rgba_crosshair_item.addToGroup(self.rgba_leftline_item)
self.rgba_crosshair_item.addToGroup(self.rgba_rightline_item)
self.addItem(self.rgba_crosshair_item)
def getRGBACrosshairPos(self):
return self._rgba_crosshair_pos
def setRGBACrosshairPos(self, pos):
"""
Places the crosshair at a specific location in the widget. This is generally
used when updating color values, and passing them back to the color widget.
Args:
pos (QPoint): in LOCAL space
"""
crosshair_radius = self.CROSSHAIR_RADIUS * 0.5
xpos = pos.x()
ypos = pos.y()
# update items positions
self.rgba_crosshair_item_circle.setPos(pos)
self.rgba_topline_item.setLine(xpos, 0, xpos, ypos - crosshair_radius)
self.rgba_botline_item.setLine(xpos, ypos + crosshair_radius, xpos, self.height())
self.rgba_leftline_item.setLine(0, ypos, xpos - crosshair_radius, ypos)
self.rgba_rightline_item.setLine(xpos + crosshair_radius, ypos, self.width(), ypos)
# set attr
self._rgba_crosshair_pos = pos
def updateRGBACrosshair(self):
main_widget = getWidgetAncestor(self, ColorGradientDelegate)
xpos = (main_widget.color().hueF() * self.width())
ypos = math.fabs((main_widget.color().saturationF() * self.height()) - self.height())
pos = QPoint(xpos, ypos)
self.setRGBACrosshairPos(pos)
def _drawRGBAForegroundItem(self):
"""
Creates the RGBA Foreground item. This item is just one big rectangle
that spans the entire scene with a 1D gradient in it to compensate for the
Saturation portion of the RGBA gradient.
"""
self.rgba_foreground = RGBAForegroundGradient(self.width(), self.height())
self.addItem(self.rgba_foreground)
self.rgba_foreground.setZValue(-10)
class MapLegendItem(QGraphicsObject, MapItem):
QtParentClass = QGraphicsObject
def __init__(self, pos=None, parent=None):
QGraphicsObject.__init__(self, parent=parent)
MapItem.__init__(self)
self.setZValue(200.0)
self._anchorPos = QPointF(pos) if pos is not None else QPointF(
10.0, 10.0)
self._border = QGraphicsRectItem(parent=self)
self._border.setPen(QPen(Qt.NoPen))
self._border.setBrush(QBrush(QColor(190, 190, 190, 160)))
self._entries = list()
self._entriesGroup = QGraphicsItemGroup(parent=self)
def _sceneChanged(self, oldScene, newScene):
if oldScene is not None:
oldScene.sceneRectChanged.disconnect(self.setSceneRect)
if newScene is not None:
newScene.sceneRectChanged.connect(self.setSceneRect)
# Setup the new position of the item
self.setSceneRect(newScene.sceneRect())
def updatePosition(self, scene):
pass
def addPoint(self, text, color, border=None, size=20.0):
shape = QGraphicsEllipseItem(size / 2.0, size / 2.0, size, size)
brush = makeBrush(color)
shape.setBrush(brush)
shape.setPen(makePen(border))
self.addEntry(MapLegendEntryItem(shape, text))
def addRect(self, text, color, border=None, size=20.0):
shape = QGraphicsRectItem(size / 2.0, size / 2.0, size, size)
brush = makeBrush(color)
shape.setBrush(brush)
shape.setPen(makePen(border))
self.addEntry(MapLegendEntryItem(shape, text))
def addLine(self, text, color, width=1.):
shape = QGraphicsLineItem(10., 10., 20., 20.)
pen = makePen(color, width=width)
shape.setPen(pen)
self.addEntry(MapLegendEntryItem(shape, text))
def addEntry(self, entry):
self._entries.append(entry)
self._entriesGroup.addToGroup(entry)
self._updateLayout()
def boundingRect(self):
return self._border.boundingRect()
def paint(*args, **kwargs):
pass
@Slot(QRectF)
def setSceneRect(self, rect):
self.setPos(rect.topLeft() + self._anchorPos)
def _updateLayout(self):
self.prepareGeometryChange()
bottom = 0.0
left = 0.0
right = 0.0
for entry in self._entries:
entry.setPos(left, bottom)
bottom += entry.bottom() + 5.0
right = max(right, entry.right() + 5.0)
self._border.setRect(0.0, 0.0, right, bottom + 5.0)
def pen(self):
"""Pen for the background of the legend
Returns:
QPen: Pen for the background of the legend
"""
return self._border.pen()
def brush(self):
"""Brush for the background of the legend
Returns:
QBrush: Brush for the background of the legend
"""
return self._border.brush()
def setPen(self, *args, **kwargs):
"""Set the pen for the background of the legend
The arguments are the same of the :func:`makePen` function
"""
return self._border.setPen(makePen(*args, **kwargs))
def setBrush(self, *args, **kwargs):
"""Set the brush for the background of the legend
The arguments are the same of the :func:`makeBrush` function
"""
return self._border.setBrush(makeBrush(*args, **kwargs))
