289 lines
7.4 KiB
GDScript
289 lines
7.4 KiB
GDScript
tool
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extends GraphEdit
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var editor_interface = null
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var node_factory = null
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var renderer = null
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var save_path = null
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var need_save = false
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signal save_path_changed
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signal graph_changed
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func _ready():
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OS.low_processor_usage_mode = true
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center_view()
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func _gui_input(event):
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if event is InputEventKey and event.pressed:
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var scancode_with_modifiers = event.get_scancode_with_modifiers()
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if scancode_with_modifiers == KEY_C:
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center_view()
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elif scancode_with_modifiers == KEY_DELETE:
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remove_selection()
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# Misc. useful functions
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func get_source(node, port):
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for c in get_connection_list():
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if c.to == node && c.to_port == port:
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return { node=c.from, slot=c.from_port }
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func offset_from_global_position(global_position):
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return (scroll_offset + global_position - rect_global_position) / zoom
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func add_node(node):
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add_child(node)
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node.connect("close_request", self, "remove_node", [ node ])
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func connect_node(from, from_slot, to, to_slot):
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var source_list = [ from ]
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# Check if the new connection creates a cycle in the graph
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while !source_list.empty():
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var source = source_list.pop_front()
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if source == to:
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#print("cannot connect %s to %s (%s)" % [from, to, source])
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return false
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for c in get_connection_list():
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if c.to == source and source_list.find(c.from) == -1:
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source_list.append(c.from)
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var disconnect = get_source(to, to_slot)
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if disconnect != null:
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.disconnect_node(disconnect.node, disconnect.slot, to, to_slot)
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.connect_node(from, from_slot, to, to_slot)
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send_changed_signal()
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return true
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func disconnect_node(from, from_slot, to, to_slot):
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.disconnect_node(from, from_slot, to, to_slot)
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send_changed_signal();
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func remove_node(node):
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var node_name = node.name
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for c in get_connection_list():
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if c.from == node_name or c.to == node_name:
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disconnect_node(c.from, c.from_port, c.to, c.to_port)
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send_changed_signal()
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node.queue_free()
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# Global operations on graph
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func update_tab_title():
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if !get_parent().has_method("set_tab_title"):
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return
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var title = "[unnamed]"
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if save_path != null:
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title = save_path.right(save_path.rfind("/")+1)
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if need_save:
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title += " *"
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if get_parent().has_method("set_tab_title"):
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get_parent().set_tab_title(get_index(), title)
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func set_need_save(ns):
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if ns != need_save:
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need_save = ns
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update_tab_title()
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func set_save_path(path):
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if path != save_path:
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save_path = path
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update_tab_title()
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emit_signal("save_path_changed", self, path)
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func clear_material():
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clear_connections()
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for c in get_children():
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if c is GraphNode:
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remove_child(c)
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c.free()
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send_changed_signal()
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func new_material():
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clear_material()
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create_nodes({name="Material", type="material"})
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set_save_path(null)
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center_view()
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func get_free_name(type):
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var i = 0
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while true:
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var node_name = type+"_"+str(i)
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if !has_node(node_name):
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return node_name
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i += 1
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func create_nodes(data, position = null):
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if data == null:
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return
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if data.has("type"):
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var node = node_factory.create_node(data.type)
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if node != null:
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if data.has("name") && !has_node(data.name):
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node.name = data.name
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else:
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node.name = get_free_name(data.type)
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add_node(node)
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node.deserialize(data)
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if position != null:
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node.offset += position
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send_changed_signal()
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return node
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else:
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if typeof(data.nodes) == TYPE_ARRAY and typeof(data.connections) == TYPE_ARRAY:
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var names = {}
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for c in data.nodes:
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var node = create_nodes(c, position)
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if node != null:
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names[c.name] = node.name
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node.selected = true
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for c in data.connections:
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connect_node(names[c.from], c.from_port, "Material" if c.to == "Material" else names[c.to], c.to_port)
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return null
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func load_file():
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var dialog = FileDialog.new()
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add_child(dialog)
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dialog.rect_min_size = Vector2(500, 500)
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dialog.access = FileDialog.ACCESS_FILESYSTEM
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dialog.mode = FileDialog.MODE_OPEN_FILE
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dialog.add_filter("*.ptex;Procedural textures file")
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dialog.connect("file_selected", self, "do_load_file")
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dialog.popup_centered()
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func do_load_file(filename):
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var file = File.new()
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if file.open(filename, File.READ) != OK:
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return
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var data = parse_json(file.get_as_text())
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file.close()
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clear_material()
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for n in data.nodes:
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create_nodes(n)
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for c in data.connections:
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connect_node(c.from, c.from_port, c.to, c.to_port)
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set_save_path(filename)
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set_need_save(false)
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center_view()
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func save_file():
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if save_path != null:
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do_save_file(save_path)
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else:
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save_file_as()
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func save_file_as():
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var dialog = FileDialog.new()
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add_child(dialog)
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dialog.rect_min_size = Vector2(500, 500)
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dialog.access = FileDialog.ACCESS_FILESYSTEM
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dialog.mode = FileDialog.MODE_SAVE_FILE
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dialog.add_filter("*.ptex;Procedural textures file")
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dialog.connect("file_selected", self, "do_save_file")
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dialog.popup_centered()
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func do_save_file(filename):
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var data = { nodes = [] }
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for c in get_children():
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if c is GraphNode:
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data.nodes.append(c.serialize())
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data.connections = get_connection_list()
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var file = File.new()
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if file.open(filename, File.WRITE) == OK:
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file.store_string(to_json(data))
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file.close()
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set_save_path(filename)
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set_need_save(false)
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func export_textures(size = null):
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if save_path != null:
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var prefix = save_path.left(save_path.rfind("."))
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for c in get_children():
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if c is GraphNode && c.has_method("export_textures"):
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c.export_textures(prefix, size)
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# Cut / copy / paste
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func remove_selection():
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for c in get_children():
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if c is GraphNode and c.selected && c.name != "Material":
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remove_node(c)
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func serialize_selection():
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var data = { nodes = [], connections = [] }
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var nodes = []
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for c in get_children():
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if c is GraphNode and c.selected && c.name != "Material":
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nodes.append(c)
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if nodes.empty():
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return null
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var center = Vector2(0, 0)
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for n in nodes:
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center += n.offset+0.5*n.rect_size
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center /= nodes.size()
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for n in nodes:
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var s = n.serialize()
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var p = n.offset-center
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s.node_position = { x=p.x, y=p.y }
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data.nodes.append(s)
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for c in get_connection_list():
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var from = get_node(c.from)
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var to = get_node(c.to)
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if from != null and from.selected and to != null and to.selected:
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data.connections.append(c)
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return data
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func can_copy():
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for c in get_children():
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if c is GraphNode and c.selected && c.name != "Material":
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return true
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return false
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func cut():
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copy()
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remove_selection()
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func copy():
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OS.clipboard = to_json(serialize_selection())
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func paste(pos = Vector2(0, 0)):
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for c in get_children():
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if c is GraphNode:
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c.selected = false
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var data = parse_json(OS.clipboard)
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create_nodes(data, scroll_offset+0.5*rect_size)
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# Center view
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func center_view():
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var center = Vector2(0, 0)
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var node_count = 0
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for c in get_children():
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if c is GraphNode:
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center += c.offset + 0.5*c.rect_size
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node_count += 1
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if node_count > 0:
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center /= node_count
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scroll_offset = center - 0.5*rect_size
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# Delay after graph update
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func send_changed_signal():
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set_need_save(true)
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$Timer.start()
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func do_send_changed_signal():
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emit_signal("graph_changed")
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# Drag and drop
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func can_drop_data(position, data):
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return typeof(data) == TYPE_DICTIONARY and (data.has('type') or (data.has('nodes') and data.has('connections')))
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func drop_data(position, data):
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# The following mitigates the SpinBox problem (captures mouse while dragging)
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if Input.get_mouse_mode() == Input.MOUSE_MODE_CAPTURED:
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Input.set_mouse_mode(Input.MOUSE_MODE_VISIBLE)
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create_nodes(data, offset_from_global_position(get_global_transform().xform(position)))
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return true
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