def _adjust_html_node_size(self, node):
if node.get_name() in ('graph', 'node', 'empty'):
return node
label = node.get_label()
if not label:
return node
label = label.strip('\"')
if not label.startswith('<') and not label.endswith('>'):
return node
text = QGraphicsTextItem()
text.setHtml(label)
bounding_box = text.boundingRect()
width = bounding_box.width() / POINTS_PER_INCH
height = bounding_box.height() / POINTS_PER_INCH
url = node.get_attributes().get('URL', None)
return self._create_fixed_size_node(node.get_name(), label, str(width),
str(height), url)
def _adjust_html_node_size(self, node):
if node.get_name() in ('graph', 'node', 'empty'):
return node
label = node.get_label()
if not label:
return node
label = label.strip('\"')
if not label.startswith('<') and not label.endswith('>'):
return node
text = QGraphicsTextItem()
text.setHtml(label)
bounding_box = text.boundingRect()
width = bounding_box.width() / POINTS_PER_INCH
height = bounding_box.height() / POINTS_PER_INCH
url = node.get_attributes().get('URL', None)
return self._create_fixed_size_node(node.get_name(), label, str(width), str(height), url)
class DmgHtmlNodeItem(GraphItem):
HIGHLIGHT_LEVEL = 1
HOVERED_COLOR = QColor(250, 0, 0)
HIGHLIGHTED_COLOR = QColor(100, 100, 100)
HIGHLIGHTED_PEN_WIDTH = 2.0
HIGHLIGHTED_LABEL_PEN_WIDTH = 1.0
def __init__(self, bounding_box, shape, label, label_pos=None, url=None, parent=None, **kwargs):
super(DmgHtmlNodeItem, self).__init__(parent, **kwargs)
self.url = url
self._incoming_edges = set()
self._outgoing_edges = set()
self._brush = QBrush(self._color)
self._label_pen = QPen()
self._label_pen.setColor(self._color)
self._label_pen.setJoinStyle(Qt.RoundJoin)
self._label_pen.setWidthF(self._label_pen_width)
self._graphics_item_pen = QPen(self._label_pen)
self._graphics_item_pen.setWidthF(self._pen_width)
self._label = QGraphicsTextItem()
self._label.setHtml(label)
label_rectangle = self._label.boundingRect()
if label_pos is None:
label_rectangle.moveCenter(bounding_box.center())
else:
label_rectangle.moveCenter(label_pos)
self._label.setPos(label_rectangle.x(), label_rectangle.y())
self.addToGroup(self._label)
self._graphics_item = ShapeFactory.create(shape, bounding_box)
if ShapeFactory.message is not None:
print ShapeFactory.message
self.addToGroup(self._graphics_item)
self._brush.setColor(self._color)
self._graphics_item_pen.setColor(self._color)
self._label_pen.setColor(self._color)
self._graphics_item.setPen(self._graphics_item_pen)
self._highlight_level = kwargs.get('highlight_level', self.HIGHLIGHT_LEVEL)
self._hovered_color = kwargs.get('hovered_color', self.HOVERED_COLOR)
self._highlighted_color = kwargs.get('highlighted_color', self.HIGHLIGHTED_COLOR)
self._highlighted_pen_width = kwargs.get('highlighted_pen_width', self.HIGHLIGHTED_PEN_WIDTH)
self._highlighted_label_pen_width = kwargs.get('highlighted_label_pen_width', self.HIGHLIGHTED_LABEL_PEN_WIDTH)
self.hover_shape = None
self.setAcceptHoverEvents(True)
def add_incoming_edge(self, edge):
self._incoming_edges.add(edge)
def add_outgoing_edge(self, edge):
self._outgoing_edges.add(edge)
def set_color(self, color=None):
if color is None:
color = self._color
self._brush.setColor(color)
self._graphics_item_pen.setColor(color)
self._label.setDefaultTextColor(color)
self._graphics_item.setPen(self._graphics_item_pen)
def set_hover_shape(self, shape):
self.hover_shape = shape
def shape(self):
if self.hover_shape is not None:
path = QPainterPath()
path.addRect(self.hover_shape)
return path
return super(GraphItem, self).shape()
def hoverEnterEvent(self, event):
self.set_color(self._highlighted_color)
self._highlight_connections()
def hoverLeaveEvent(self, event):
self.set_color()
self._highlight_connections(False)
def _highlight_connections(self, highlighted=True):
if highlighted:
if self._highlight_level > 1:
cyclic_edges = self._incoming_edges.intersection(self._outgoing_edges)
# incoming edges in blue
incoming_nodes = set()
for incoming_edge in self._incoming_edges.difference(cyclic_edges):
incoming_edge.set_color(self.COLOR_BLUE)
if incoming_edge.from_node != self:
incoming_nodes.add(incoming_edge.from_node)
# outgoing edges in green
outgoing_nodes = set()
for outgoing_edge in self._outgoing_edges.difference(cyclic_edges):
outgoing_edge.set_color(self.COLOR_GREEN)
if outgoing_edge.to_node != self:
outgoing_nodes.add(outgoing_edge.to_node)
# incoming/outgoing edges in teal
for edge in cyclic_edges:
edge.set_color(self.COLOR_TEAL)
if self._highlight_level > 2:
cyclic_nodes = incoming_nodes.intersection(outgoing_nodes)
# incoming nodes in blue
for incoming_node in incoming_nodes.difference(cyclic_nodes):
incoming_node.set_color(self.COLOR_BLUE)
# outgoing nodes in green
for outgoing_node in outgoing_nodes.difference(cyclic_nodes):
outgoing_node.set_color(self.COLOR_GREEN)
# incoming/outgoing nodes in teal
for node in cyclic_nodes:
node.set_color(self.COLOR_TEAL)
else:
if self._highlight_level > 1:
for incoming_edge in self._incoming_edges:
incoming_edge.set_color()
if self.highlight_level > 2 and incoming_edge.from_node != self:
incoming_edge.from_node.set_color()
for outgoing_edge in self._outgoing_edges:
outgoing_edge.set_color()
if self.highlight_level > 2 and outgoing_edge.to_node != self:
outgoing_edge.to_node.set_color()
def highlight(self, highlighted=True):
if highlighted:
self._graphics_item_pen.setWidthF(self._highlighted_pen_width)
else:
self._graphics_item_pen.setWidthF(self._pen_width)
self._graphics_item.setPen(self._graphics_item_pen)
class DmgHtmlNodeItem(GraphItem):
HIGHLIGHT_LEVEL = 1
HOVERED_COLOR = QColor(250, 0, 0)
HIGHLIGHTED_COLOR = QColor(100, 100, 100)
HIGHLIGHTED_PEN_WIDTH = 2.0
HIGHLIGHTED_LABEL_PEN_WIDTH = 1.0
def __init__(self,
bounding_box,
shape,
label,
label_pos=None,
url=None,
parent=None,
**kwargs):
super(DmgHtmlNodeItem, self).__init__(parent, **kwargs)
self.url = url
self._incoming_edges = set()
self._outgoing_edges = set()
self._brush = QBrush(self._color)
self._label_pen = QPen()
self._label_pen.setColor(self._color)
self._label_pen.setJoinStyle(Qt.RoundJoin)
self._label_pen.setWidthF(self._label_pen_width)
self._graphics_item_pen = QPen(self._label_pen)
self._graphics_item_pen.setWidthF(self._pen_width)
self._label = QGraphicsTextItem()
self._label.setHtml(label)
label_rectangle = self._label.boundingRect()
if label_pos is None:
label_rectangle.moveCenter(bounding_box.center())
else:
label_rectangle.moveCenter(label_pos)
self._label.setPos(label_rectangle.x(), label_rectangle.y())
self.addToGroup(self._label)
self._graphics_item = ShapeFactory.create(shape, bounding_box)
if ShapeFactory.message is not None:
print ShapeFactory.message
self.addToGroup(self._graphics_item)
self._brush.setColor(self._color)
self._graphics_item_pen.setColor(self._color)
self._label_pen.setColor(self._color)
self._graphics_item.setPen(self._graphics_item_pen)
self._highlight_level = kwargs.get('highlight_level',
self.HIGHLIGHT_LEVEL)
self._hovered_color = kwargs.get('hovered_color', self.HOVERED_COLOR)
self._highlighted_color = kwargs.get('highlighted_color',
self.HIGHLIGHTED_COLOR)
self._highlighted_pen_width = kwargs.get('highlighted_pen_width',
self.HIGHLIGHTED_PEN_WIDTH)
self._highlighted_label_pen_width = kwargs.get(
'highlighted_label_pen_width', self.HIGHLIGHTED_LABEL_PEN_WIDTH)
self.hover_shape = None
self.setAcceptHoverEvents(True)
def add_incoming_edge(self, edge):
self._incoming_edges.add(edge)
def add_outgoing_edge(self, edge):
self._outgoing_edges.add(edge)
def set_color(self, color=None):
if color is None:
color = self._color
self._brush.setColor(color)
self._graphics_item_pen.setColor(color)
self._label.setDefaultTextColor(color)
self._graphics_item.setPen(self._graphics_item_pen)
def set_hover_shape(self, shape):
self.hover_shape = shape
def shape(self):
if self.hover_shape is not None:
path = QPainterPath()
path.addRect(self.hover_shape)
return path
return super(GraphItem, self).shape()
def hoverEnterEvent(self, event):
self.set_color(self._highlighted_color)
self._highlight_connections()
def hoverLeaveEvent(self, event):
self.set_color()
self._highlight_connections(False)
def _highlight_connections(self, highlighted=True):
if highlighted:
if self._highlight_level > 1:
cyclic_edges = self._incoming_edges.intersection(
self._outgoing_edges)
# incoming edges in blue
incoming_nodes = set()
for incoming_edge in self._incoming_edges.difference(
cyclic_edges):
incoming_edge.set_color(self.COLOR_BLUE)
if incoming_edge.from_node != self:
incoming_nodes.add(incoming_edge.from_node)
# outgoing edges in green
outgoing_nodes = set()
for outgoing_edge in self._outgoing_edges.difference(
cyclic_edges):
outgoing_edge.set_color(self.COLOR_GREEN)
if outgoing_edge.to_node != self:
outgoing_nodes.add(outgoing_edge.to_node)
# incoming/outgoing edges in teal
for edge in cyclic_edges:
edge.set_color(self.COLOR_TEAL)
if self._highlight_level > 2:
cyclic_nodes = incoming_nodes.intersection(outgoing_nodes)
# incoming nodes in blue
for incoming_node in incoming_nodes.difference(
cyclic_nodes):
incoming_node.set_color(self.COLOR_BLUE)
# outgoing nodes in green
for outgoing_node in outgoing_nodes.difference(
cyclic_nodes):
outgoing_node.set_color(self.COLOR_GREEN)
# incoming/outgoing nodes in teal
for node in cyclic_nodes:
node.set_color(self.COLOR_TEAL)
else:
if self._highlight_level > 1:
for incoming_edge in self._incoming_edges:
incoming_edge.set_color()
if self.highlight_level > 2 and incoming_edge.from_node != self:
incoming_edge.from_node.set_color()
for outgoing_edge in self._outgoing_edges:
outgoing_edge.set_color()
if self.highlight_level > 2 and outgoing_edge.to_node != self:
outgoing_edge.to_node.set_color()
def highlight(self, highlighted=True):
if highlighted:
self._graphics_item_pen.setWidthF(self._highlighted_pen_width)
else:
self._graphics_item_pen.setWidthF(self._pen_width)
self._graphics_item.setPen(self._graphics_item_pen)
