def deserialize(self, data, hashmap={}, restore_id=True):
self.clear()
hashmap = {}
if restore_id: self.id = data['id']
# create nodes
for node_data in data['nodes']:
Node(self).deserialize(node_data, hashmap, restore_id)
# create edges
for edge_data in data['edges']:
Edge(self).deserialize(edge_data, hashmap, restore_id)
return True
def deserializeFromClipboard(self, data):
hashmap = {}
# calculate mouse pointer - scene position
view = self.scene.grScene.views()[0]
mouse_scene_pos = view.last_scene_mouse_position
# calculate selected objects bbox and center
minx, maxx, miny, maxy = 0, 0, 0, 0
for node_data in data['nodes']:
x, y = node_data['pos_x'], node_data['pos_y']
if x < minx: minx = x
if x > maxx: maxx = x
if y < miny: miny = y
if y > maxy: maxy = y
bbox_center_x = (minx + maxx) / 2
bbox_center_y = (miny + maxy) / 2
#center = view.mapToScene(view.rect().center())
# calculate the offset of the newly creating nodes
offset_x = mouse_scene_pos.x() - bbox_center_x
offset_y = mouse_scene_pos.y() - bbox_center_y
# create each node
for node_data in data['nodes']:
new_node = Node(self.scene)
new_node.deserialize(node_data, hashmap, restore_id=False)
# readjust the new node's position
pos = new_node.pos
new_node.setPos(pos.x() + offset_x, pos.y() + offset_y)
# create each edge
if 'edges' in data:
for edge_data in data['edges']:
new_edge = Edge(self.scene)
new_edge.deserialize(edge_data, hashmap, restore_id=False)
# store history
self.scene.history.storeHistory("Pasted elements in scene")
def addNodes(self):
node1 = Node(self.scene,
"My Awesome Node 1",
inputs=[0, 2, 3],
outputs=[1])
node2 = Node(self.scene,
"My Awesome Node 2",
inputs=[1, 4, 5],
outputs=[1])
node3 = Node(self.scene,
"My Awesome Node 3",
inputs=[4, 0, 2],
outputs=[1])
node1.setPos(-350, -250)
node2.setPos(-75, 0)
node3.setPos(200, -150)
edge1 = Edge(self.scene,
node1.outputs[0],
node2.inputs[0],
edge_type=EDGE_TYPE_BEZIER)
edge2 = Edge(self.scene,
node2.outputs[0],
node3.inputs[1],
edge_type=EDGE_TYPE_BEZIER)
def addNodes(self):
node1 = Node(self.scene, "My Awesome Node 1", inputs=[0, 0, 0], outputs=[1])
node2 = Node(self.scene, "My Awesome Node 2", inputs=[3, 3, 3], outputs=[1])
node3 = Node(self.scene, "My Awesome Node 3", inputs=[2, 2, 2], outputs=[1])
node1.setPos(-350, -250)
node2.setPos(-75, 0)
node3.setPos(200, -150)
edge1 = Edge(self.scene, node1.outputs[0], node2.inputs[0], edge_type=EDGE_TYPE_BEZIER)
edge2 = Edge(self.scene, node2.outputs[0], node3.inputs[0], edge_type=EDGE_TYPE_BEZIER)
self.scene.history.storeInitialHistoryStamp()
def addNodes(self):
"""Testing method to create 3 `Nodes` with 3 `Edges` connecting them"""
node1 = Node(self.scene,
"My Awesome Node 1",
inputs=[0, 0, 0],
outputs=[1, 5])
node2 = Node(self.scene,
"My Awesome Node 2",
inputs=[3, 3, 3],
outputs=[1])
node3 = Node(self.scene,
"My Awesome Node 3",
inputs=[2, 2, 2],
outputs=[1])
node1.setPos(-350, -250)
node2.setPos(-75, 0)
node3.setPos(200, -200)
edge1 = Edge(self.scene,
node1.outputs[0],
node2.inputs[0],
edge_type=EDGE_TYPE_BEZIER)
edge2 = Edge(self.scene,
node2.outputs[0],
node3.inputs[0],
edge_type=EDGE_TYPE_BEZIER)
edge3 = Edge(self.scene,
node1.outputs[0],
node3.inputs[2],
edge_type=EDGE_TYPE_BEZIER)
self.scene.history.storeInitialHistoryStamp()