892 lines
31 KiB
Python
892 lines
31 KiB
Python
import logging
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import tkinter as tk
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from PIL import Image, ImageTk
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from core.api.grpc import core_pb2
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from core.gui import nodeutils
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from core.gui.dialogs.shapemod import ShapeDialog
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from core.gui.graph import tags
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from core.gui.graph.edges import CanvasEdge, CanvasWirelessEdge
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from core.gui.graph.enums import GraphMode, ScaleOption
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from core.gui.graph.linkinfo import Throughput
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from core.gui.graph.node import CanvasNode
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from core.gui.graph.shape import Shape
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from core.gui.graph.shapeutils import ShapeType, is_draw_shape, is_marker
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from core.gui.images import Images
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from core.gui.nodeutils import NodeUtils
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ZOOM_IN = 1.1
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ZOOM_OUT = 0.9
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class CanvasGraph(tk.Canvas):
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def __init__(self, master, core, width, height):
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super().__init__(master, highlightthickness=0, background="#cccccc")
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self.app = master
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self.core = core
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self.mode = GraphMode.SELECT
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self.annotation_type = None
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self.selection = {}
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self.select_box = None
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self.selected = None
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self.node_draw = None
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self.context = None
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self.nodes = {}
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self.edges = {}
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self.shapes = {}
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self.wireless_edges = {}
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self.drawing_edge = None
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self.grid = None
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self.throughput_draw = Throughput(self, core)
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self.shape_drawing = False
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self.default_dimensions = (width, height)
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self.current_dimensions = self.default_dimensions
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self.ratio = 1.0
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self.offset = (0, 0)
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self.cursor = (0, 0)
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self.marker_tool = None
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self.to_copy = []
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# background related
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self.wallpaper_id = None
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self.wallpaper = None
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self.wallpaper_drawn = None
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self.wallpaper_file = ""
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self.scale_option = tk.IntVar(value=1)
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self.show_grid = tk.BooleanVar(value=True)
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self.adjust_to_dim = tk.BooleanVar(value=False)
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# throughput related
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self.throughput_threshold = 250.0
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self.throughput_width = 10
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self.throughput_color = "#FF0000"
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# bindings
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self.setup_bindings()
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# draw base canvas
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self.draw_canvas()
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self.draw_grid()
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def draw_canvas(self, dimensions=None):
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if self.grid is not None:
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self.delete(self.grid)
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if not dimensions:
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dimensions = self.default_dimensions
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self.current_dimensions = dimensions
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self.grid = self.create_rectangle(
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0,
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0,
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*dimensions,
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outline="#000000",
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fill="#ffffff",
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width=1,
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tags="rectangle",
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)
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self.configure(scrollregion=self.bbox(tk.ALL))
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def reset_and_redraw(self, session):
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"""
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Reset the private variables CanvasGraph object, redraw nodes given the new grpc
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client.
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:param core.api.grpc.core_pb2.Session session: session to draw
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:return: nothing
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"""
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# hide context
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self.hide_context()
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# delete any existing drawn items
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for tag in tags.COMPONENT_TAGS:
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self.delete(tag)
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# set the private variables to default value
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self.mode = GraphMode.SELECT
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self.annotation_type = None
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self.node_draw = None
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self.selected = None
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self.nodes.clear()
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self.edges.clear()
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self.shapes.clear()
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self.wireless_edges.clear()
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self.drawing_edge = None
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self.draw_session(session)
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def setup_bindings(self):
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"""
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Bind any mouse events or hot keys to the matching action
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:return: nothing
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"""
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self.bind("<ButtonPress-1>", self.click_press)
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self.bind("<ButtonRelease-1>", self.click_release)
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self.bind("<B1-Motion>", self.click_motion)
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self.bind("<ButtonRelease-3>", self.click_context)
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self.bind("<Delete>", self.press_delete)
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self.bind("<Control-1>", self.ctrl_click)
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self.bind("<Double-Button-1>", self.double_click)
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self.bind("<MouseWheel>", self.zoom)
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self.bind("<Button-4>", lambda e: self.zoom(e, ZOOM_IN))
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self.bind("<Button-5>", lambda e: self.zoom(e, ZOOM_OUT))
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self.bind("<ButtonPress-3>", lambda e: self.scan_mark(e.x, e.y))
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self.bind("<B3-Motion>", lambda e: self.scan_dragto(e.x, e.y, gain=1))
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def hide_context(self):
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if self.context:
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self.context.unpost()
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self.context = None
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def get_actual_coords(self, x, y):
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actual_x = (x - self.offset[0]) / self.ratio
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actual_y = (y - self.offset[1]) / self.ratio
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return actual_x, actual_y
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def get_scaled_coords(self, x, y):
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scaled_x = (x * self.ratio) + self.offset[0]
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scaled_y = (y * self.ratio) + self.offset[1]
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return scaled_x, scaled_y
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def inside_canvas(self, x, y):
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x1, y1, x2, y2 = self.bbox(self.grid)
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valid_x = x1 <= x <= x2
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valid_y = y1 <= y <= y2
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return valid_x and valid_y
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def valid_position(self, x1, y1, x2, y2):
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valid_topleft = self.inside_canvas(x1, y1)
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valid_bottomright = self.inside_canvas(x2, y2)
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return valid_topleft and valid_bottomright
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def draw_grid(self):
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"""
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Create grid.
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:return: nothing
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"""
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width, height = self.width_and_height()
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width = int(width)
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height = int(height)
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for i in range(0, width, 27):
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self.create_line(i, 0, i, height, dash=(2, 4), tags=tags.GRIDLINE)
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for i in range(0, height, 27):
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self.create_line(0, i, width, i, dash=(2, 4), tags=tags.GRIDLINE)
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self.tag_lower(tags.GRIDLINE)
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self.tag_lower(self.grid)
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def add_wireless_edge(self, src, dst):
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"""
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add a wireless edge between 2 canvas nodes
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:param CanvasNode src: source node
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:param CanvasNode dst: destination node
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:return: nothing
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"""
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token = tuple(sorted((src.id, dst.id)))
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x1, y1 = self.coords(src.id)
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x2, y2 = self.coords(dst.id)
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position = (x1, y1, x2, y2)
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edge = CanvasWirelessEdge(token, position, src.id, dst.id, self)
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self.wireless_edges[token] = edge
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src.wireless_edges.add(edge)
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dst.wireless_edges.add(edge)
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self.tag_raise(src.id)
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self.tag_raise(dst.id)
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def delete_wireless_edge(self, src, dst):
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token = tuple(sorted((src.id, dst.id)))
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edge = self.wireless_edges.pop(token)
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edge.delete()
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src.wireless_edges.remove(edge)
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dst.wireless_edges.remove(edge)
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def draw_session(self, session):
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"""
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Draw existing session.
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:return: nothing
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"""
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# draw existing nodes
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for core_node in session.nodes:
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# peer to peer node is not drawn on the GUI
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if NodeUtils.is_ignore_node(core_node.type):
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continue
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# draw nodes on the canvas
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logging.info("drawing core node: %s", core_node)
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image = NodeUtils.node_icon(core_node.type, core_node.model)
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if core_node.icon:
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try:
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image = Images.create(core_node.icon, nodeutils.ICON_SIZE)
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except OSError:
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logging.error("invalid icon: %s", core_node.icon)
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x = core_node.position.x
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y = core_node.position.y
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node = CanvasNode(self.master, x, y, core_node, image)
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self.nodes[node.id] = node
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self.core.canvas_nodes[core_node.id] = node
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# draw existing links
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for link in session.links:
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logging.info("drawing link: %s", link)
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canvas_node_one = self.core.canvas_nodes[link.node_one_id]
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node_one = canvas_node_one.core_node
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canvas_node_two = self.core.canvas_nodes[link.node_two_id]
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node_two = canvas_node_two.core_node
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token = tuple(sorted((canvas_node_one.id, canvas_node_two.id)))
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if link.type == core_pb2.LinkType.WIRELESS:
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self.add_wireless_edge(canvas_node_one, canvas_node_two)
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else:
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if token not in self.edges:
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edge = CanvasEdge(
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node_one.position.x,
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node_one.position.y,
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node_two.position.x,
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node_two.position.y,
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canvas_node_one.id,
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self,
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)
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edge.token = token
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edge.dst = canvas_node_two.id
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edge.set_link(link)
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edge.check_wireless()
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canvas_node_one.edges.add(edge)
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canvas_node_two.edges.add(edge)
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self.edges[edge.token] = edge
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self.core.links[edge.token] = edge
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if link.HasField("interface_one"):
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canvas_node_one.interfaces.append(link.interface_one)
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if link.HasField("interface_two"):
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canvas_node_two.interfaces.append(link.interface_two)
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elif link.options.unidirectional:
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edge = self.edges[token]
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edge.asymmetric_link = link
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else:
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logging.error("duplicate link received: %s", link)
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# raise the nodes so they on top of the links
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self.tag_raise(tags.NODE)
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def canvas_xy(self, event):
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"""
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Convert window coordinate to canvas coordinate
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:param event:
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:rtype: (int, int)
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:return: x, y canvas coordinate
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"""
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x = self.canvasx(event.x)
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y = self.canvasy(event.y)
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return x, y
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def get_selected(self, event):
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"""
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Retrieve the item id that is on the mouse position
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:param event: mouse event
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:rtype: int
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:return: the item that the mouse point to
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"""
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x, y = self.canvas_xy(event)
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overlapping = self.find_overlapping(x, y, x, y)
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selected = None
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for _id in overlapping:
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if self.drawing_edge and self.drawing_edge.id == _id:
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continue
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if _id in self.nodes:
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selected = _id
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break
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if _id in self.shapes:
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selected = _id
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return selected
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def click_release(self, event):
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"""
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Draw a node or finish drawing an edge according to the current graph mode
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:param event: mouse event
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:return: nothing
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"""
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logging.debug("click release")
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x, y = self.canvas_xy(event)
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if not self.inside_canvas(x, y):
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return
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if self.context:
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self.hide_context()
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else:
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if self.mode == GraphMode.ANNOTATION:
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self.focus_set()
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if self.shape_drawing:
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shape = self.shapes[self.selected]
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shape.shape_complete(x, y)
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self.shape_drawing = False
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elif self.mode == GraphMode.SELECT:
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self.focus_set()
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if self.select_box:
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x0, y0, x1, y1 = self.coords(self.select_box.id)
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inside = [
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x
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for x in self.find_enclosed(x0, y0, x1, y1)
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if "node" in self.gettags(x) or "shape" in self.gettags(x)
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]
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for i in inside:
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self.select_object(i, True)
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self.select_box.disappear()
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self.select_box = None
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else:
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self.focus_set()
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self.selected = self.get_selected(event)
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logging.debug(
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f"click release selected({self.selected}) mode({self.mode})"
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)
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if self.mode == GraphMode.EDGE:
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self.handle_edge_release(event)
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elif self.mode == GraphMode.NODE:
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self.add_node(x, y)
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elif self.mode == GraphMode.PICKNODE:
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self.mode = GraphMode.NODE
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self.selected = None
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def handle_edge_release(self, event):
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edge = self.drawing_edge
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self.drawing_edge = None
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# not drawing edge return
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if edge is None:
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return
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# edge dst must be a node
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logging.debug("current selected: %s", self.selected)
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dst_node = self.nodes.get(self.selected)
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if not dst_node:
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edge.delete()
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return
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# edge dst is same as src, delete edge
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if edge.src == self.selected:
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edge.delete()
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return
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# ignore repeated edges
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token = tuple(sorted((edge.src, self.selected)))
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if token in self.edges:
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edge.delete()
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return
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# set dst node and snap edge to center
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edge.complete(self.selected)
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logging.debug("drawing edge token: %s", edge.token)
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self.edges[edge.token] = edge
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node_src = self.nodes[edge.src]
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node_src.edges.add(edge)
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node_dst = self.nodes[edge.dst]
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node_dst.edges.add(edge)
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self.core.create_link(edge, node_src, node_dst)
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def select_object(self, object_id, choose_multiple=False):
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"""
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create a bounding box when a node is selected
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"""
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if not choose_multiple:
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self.clear_selection()
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# draw a bounding box if node hasn't been selected yet
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if object_id not in self.selection:
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x0, y0, x1, y1 = self.bbox(object_id)
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selection_id = self.create_rectangle(
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(x0 - 6, y0 - 6, x1 + 6, y1 + 6),
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activedash=True,
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dash="-",
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tags=tags.SELECTION,
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)
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self.selection[object_id] = selection_id
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else:
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selection_id = self.selection.pop(object_id)
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self.delete(selection_id)
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def clear_selection(self):
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"""
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Clear current selection boxes.
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:return: nothing
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"""
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for _id in self.selection.values():
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self.delete(_id)
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self.selection.clear()
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def move_selection(self, object_id, x_offset, y_offset):
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select_id = self.selection.get(object_id)
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if select_id is not None:
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self.move(select_id, x_offset, y_offset)
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def delete_selection_objects(self):
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edges = set()
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nodes = []
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for object_id in self.selection:
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# delete selection box
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selection_id = self.selection[object_id]
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self.delete(selection_id)
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# delete node and related edges
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if object_id in self.nodes:
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canvas_node = self.nodes.pop(object_id)
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canvas_node.delete()
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nodes.append(canvas_node)
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is_wireless = NodeUtils.is_wireless_node(canvas_node.core_node.type)
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# delete related edges
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for edge in canvas_node.edges:
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if edge in edges:
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continue
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edges.add(edge)
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self.throughput_draw.delete(edge)
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self.edges.pop(edge.token, None)
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# del self.edges[edge.token]
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edge.delete()
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# update node connected to edge being deleted
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other_id = edge.src
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other_interface = edge.src_interface
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if edge.src == object_id:
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other_id = edge.dst
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other_interface = edge.dst_interface
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other_node = self.nodes[other_id]
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other_node.edges.remove(edge)
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try:
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other_node.interfaces.remove(other_interface)
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except ValueError:
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pass
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if is_wireless:
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other_node.delete_antenna()
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# delete shape
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if object_id in self.shapes:
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shape = self.shapes.pop(object_id)
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shape.delete()
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self.selection.clear()
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return nodes
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def zoom(self, event, factor=None):
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if not factor:
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factor = ZOOM_IN if event.delta > 0 else ZOOM_OUT
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event.x, event.y = self.canvasx(event.x), self.canvasy(event.y)
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self.scale(tk.ALL, event.x, event.y, factor, factor)
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self.configure(scrollregion=self.bbox(tk.ALL))
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self.ratio *= float(factor)
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self.offset = (
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self.offset[0] * factor + event.x * (1 - factor),
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self.offset[1] * factor + event.y * (1 - factor),
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)
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logging.info("ratio: %s", self.ratio)
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logging.info("offset: %s", self.offset)
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self.app.statusbar.zoom.config(text="%s" % (int(self.ratio * 100)) + "%")
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if self.wallpaper:
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self.redraw_wallpaper()
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def click_press(self, event):
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"""
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Start drawing an edge if mouse click is on a node
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:param event: mouse event
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:return: nothing
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"""
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x, y = self.canvas_xy(event)
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if not self.inside_canvas(x, y):
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return
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self.cursor = x, y
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selected = self.get_selected(event)
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logging.debug("click press(%s): %s", self.cursor, selected)
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x_check = self.cursor[0] - self.offset[0]
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y_check = self.cursor[1] - self.offset[1]
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logging.debug("clock press ofset(%s, %s)", x_check, y_check)
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is_node = selected in self.nodes
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if self.mode == GraphMode.EDGE and is_node:
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x, y = self.coords(selected)
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self.drawing_edge = CanvasEdge(x, y, x, y, selected, self)
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|
|
if self.mode == GraphMode.ANNOTATION:
|
|
|
|
if is_marker(self.annotation_type):
|
|
r = self.app.toolbar.marker_tool.radius
|
|
self.create_oval(
|
|
x - r,
|
|
y - r,
|
|
x + r,
|
|
y + r,
|
|
fill=self.app.toolbar.marker_tool.color,
|
|
outline="",
|
|
tags="marker",
|
|
)
|
|
return
|
|
if selected is None:
|
|
shape = Shape(self.app, self, self.annotation_type, x, y)
|
|
self.selected = shape.id
|
|
self.shape_drawing = True
|
|
self.shapes[shape.id] = shape
|
|
|
|
if selected is not None:
|
|
if selected not in self.selection:
|
|
if selected in self.shapes:
|
|
shape = self.shapes[selected]
|
|
self.select_object(shape.id)
|
|
self.selected = selected
|
|
elif selected in self.nodes:
|
|
node = self.nodes[selected]
|
|
self.select_object(node.id)
|
|
self.selected = selected
|
|
logging.info(
|
|
"selected coords: (%s, %s)",
|
|
node.core_node.position.x,
|
|
node.core_node.position.y,
|
|
)
|
|
else:
|
|
logging.debug("create selection box")
|
|
if self.mode == GraphMode.SELECT:
|
|
shape = Shape(self.app, self, ShapeType.RECTANGLE, x, y)
|
|
self.select_box = shape
|
|
self.clear_selection()
|
|
|
|
def ctrl_click(self, event):
|
|
# update cursor location
|
|
x, y = self.canvas_xy(event)
|
|
if not self.inside_canvas(x, y):
|
|
return
|
|
|
|
self.cursor = x, y
|
|
|
|
# handle multiple selections
|
|
logging.debug("control left click: %s", event)
|
|
selected = self.get_selected(event)
|
|
if (
|
|
selected not in self.selection
|
|
and selected in self.shapes
|
|
or selected in self.nodes
|
|
):
|
|
self.select_object(selected, choose_multiple=True)
|
|
|
|
def click_motion(self, event):
|
|
"""
|
|
Redraw drawing edge according to the current position of the mouse
|
|
|
|
:param event: mouse event
|
|
:return: nothing
|
|
"""
|
|
x, y = self.canvas_xy(event)
|
|
if not self.inside_canvas(x, y):
|
|
if self.select_box:
|
|
self.select_box.delete()
|
|
self.select_box = None
|
|
if is_draw_shape(self.annotation_type) and self.shape_drawing:
|
|
shape = self.shapes.pop(self.selected)
|
|
shape.delete()
|
|
self.shape_drawing = False
|
|
return
|
|
|
|
x_offset = x - self.cursor[0]
|
|
y_offset = y - self.cursor[1]
|
|
self.cursor = x, y
|
|
|
|
if self.mode == GraphMode.EDGE and self.drawing_edge is not None:
|
|
x1, y1, _, _ = self.coords(self.drawing_edge.id)
|
|
self.coords(self.drawing_edge.id, x1, y1, x, y)
|
|
if self.mode == GraphMode.ANNOTATION:
|
|
if is_draw_shape(self.annotation_type) and self.shape_drawing:
|
|
shape = self.shapes[self.selected]
|
|
shape.shape_motion(x, y)
|
|
elif is_marker(self.annotation_type):
|
|
r = self.app.toolbar.marker_tool.radius
|
|
self.create_oval(
|
|
x - r,
|
|
y - r,
|
|
x + r,
|
|
y + r,
|
|
fill=self.app.toolbar.marker_tool.color,
|
|
outline="",
|
|
tags="marker",
|
|
)
|
|
return
|
|
|
|
if self.mode == GraphMode.EDGE:
|
|
return
|
|
|
|
# move selected objects
|
|
if self.selection:
|
|
for selected_id in self.selection:
|
|
if selected_id in self.shapes:
|
|
shape = self.shapes[selected_id]
|
|
shape.motion(x_offset, y_offset)
|
|
|
|
if selected_id in self.nodes:
|
|
node = self.nodes[selected_id]
|
|
node.motion(x_offset, y_offset, update=self.core.is_runtime())
|
|
else:
|
|
if self.select_box and self.mode == GraphMode.SELECT:
|
|
self.select_box.shape_motion(x, y)
|
|
|
|
def click_context(self, event):
|
|
logging.info("context event: %s", self.context)
|
|
if not self.context:
|
|
selected = self.get_selected(event)
|
|
canvas_node = self.nodes.get(selected)
|
|
if canvas_node:
|
|
logging.debug("node context: %s", selected)
|
|
self.context = canvas_node.create_context()
|
|
self.context.post(event.x_root, event.y_root)
|
|
else:
|
|
self.hide_context()
|
|
|
|
def press_delete(self, event):
|
|
"""
|
|
delete selected nodes and any data that relates to it
|
|
:param event:
|
|
:return:
|
|
"""
|
|
logging.debug("press delete key")
|
|
nodes = self.delete_selection_objects()
|
|
self.core.delete_graph_nodes(nodes)
|
|
|
|
def double_click(self, event):
|
|
selected = self.get_selected(event)
|
|
if selected is not None and selected in self.shapes:
|
|
shape = self.shapes[selected]
|
|
dialog = ShapeDialog(self.app, self.app, shape)
|
|
dialog.show()
|
|
|
|
def add_node(self, x, y):
|
|
if self.selected is None or self.selected in self.shapes:
|
|
actual_x, actual_y = self.get_actual_coords(x, y)
|
|
core_node = self.core.create_node(
|
|
actual_x, actual_y, self.node_draw.node_type, self.node_draw.model
|
|
)
|
|
node = CanvasNode(self.master, x, y, core_node, self.node_draw.image)
|
|
self.core.canvas_nodes[core_node.id] = node
|
|
self.nodes[node.id] = node
|
|
return node
|
|
|
|
def width_and_height(self):
|
|
"""
|
|
retrieve canvas width and height in pixels
|
|
|
|
:return: nothing
|
|
"""
|
|
x0, y0, x1, y1 = self.coords(self.grid)
|
|
canvas_w = abs(x0 - x1)
|
|
canvas_h = abs(y0 - y1)
|
|
return canvas_w, canvas_h
|
|
|
|
def get_wallpaper_image(self):
|
|
width = int(self.wallpaper.width * self.ratio)
|
|
height = int(self.wallpaper.height * self.ratio)
|
|
image = self.wallpaper.resize((width, height), Image.ANTIALIAS)
|
|
return image
|
|
|
|
def draw_wallpaper(self, image, x=None, y=None):
|
|
if x is None and y is None:
|
|
x1, y1, x2, y2 = self.bbox(self.grid)
|
|
x = (x1 + x2) / 2
|
|
y = (y1 + y2) / 2
|
|
|
|
self.wallpaper_id = self.create_image((x, y), image=image, tags=tags.WALLPAPER)
|
|
self.wallpaper_drawn = image
|
|
|
|
def wallpaper_upper_left(self):
|
|
self.delete(self.wallpaper_id)
|
|
|
|
# create new scaled image, cropped if needed
|
|
width, height = self.width_and_height()
|
|
image = self.get_wallpaper_image()
|
|
cropx = image.width
|
|
cropy = image.height
|
|
if image.width > width:
|
|
cropx = image.width
|
|
if image.height > height:
|
|
cropy = image.height
|
|
cropped = image.crop((0, 0, cropx, cropy))
|
|
image = ImageTk.PhotoImage(cropped)
|
|
|
|
# draw on canvas
|
|
x1, y1, _, _ = self.bbox(self.grid)
|
|
x = (cropx / 2) + x1
|
|
y = (cropy / 2) + y1
|
|
self.draw_wallpaper(image, x, y)
|
|
|
|
def wallpaper_center(self):
|
|
"""
|
|
place the image at the center of canvas
|
|
|
|
:return: nothing
|
|
"""
|
|
self.delete(self.wallpaper_id)
|
|
|
|
# dimension of the cropped image
|
|
width, height = self.width_and_height()
|
|
image = self.get_wallpaper_image()
|
|
cropx = 0
|
|
if image.width > width:
|
|
cropx = (image.width - width) / 2
|
|
cropy = 0
|
|
if image.height > height:
|
|
cropy = (image.height - height) / 2
|
|
x1 = 0 + cropx
|
|
y1 = 0 + cropy
|
|
x2 = image.width - cropx
|
|
y2 = image.height - cropy
|
|
cropped = image.crop((x1, y1, x2, y2))
|
|
image = ImageTk.PhotoImage(cropped)
|
|
self.draw_wallpaper(image)
|
|
|
|
def wallpaper_scaled(self):
|
|
"""
|
|
scale image based on canvas dimension
|
|
|
|
:return: nothing
|
|
"""
|
|
self.delete(self.wallpaper_id)
|
|
canvas_w, canvas_h = self.width_and_height()
|
|
image = self.wallpaper.resize((int(canvas_w), int(canvas_h)), Image.ANTIALIAS)
|
|
image = ImageTk.PhotoImage(image)
|
|
self.draw_wallpaper(image)
|
|
|
|
def resize_to_wallpaper(self):
|
|
self.delete(self.wallpaper_id)
|
|
image = ImageTk.PhotoImage(self.wallpaper)
|
|
self.redraw_canvas((image.width(), image.height()))
|
|
self.draw_wallpaper(image)
|
|
|
|
def redraw_canvas(self, dimensions=None):
|
|
logging.info("redrawing canvas to dimensions: %s", dimensions)
|
|
|
|
# reset scale and move back to original position
|
|
logging.info("resetting scaling: %s %s", self.ratio, self.offset)
|
|
factor = 1 / self.ratio
|
|
self.scale(tk.ALL, self.offset[0], self.offset[1], factor, factor)
|
|
self.move(tk.ALL, -self.offset[0], -self.offset[1])
|
|
|
|
# reset ratio and offset
|
|
self.ratio = 1.0
|
|
self.offset = (0, 0)
|
|
|
|
# redraw canvas rectangle
|
|
self.draw_canvas(dimensions)
|
|
|
|
# redraw gridlines to new canvas size
|
|
self.delete(tags.GRIDLINE)
|
|
self.draw_grid()
|
|
self.update_grid()
|
|
|
|
def redraw_wallpaper(self):
|
|
if self.adjust_to_dim.get():
|
|
logging.info("drawing wallpaper to canvas dimensions")
|
|
self.resize_to_wallpaper()
|
|
else:
|
|
option = ScaleOption(self.scale_option.get())
|
|
logging.info("drawing canvas using scaling option: %s", option)
|
|
if option == ScaleOption.UPPER_LEFT:
|
|
self.wallpaper_upper_left()
|
|
elif option == ScaleOption.CENTERED:
|
|
self.wallpaper_center()
|
|
elif option == ScaleOption.SCALED:
|
|
self.wallpaper_scaled()
|
|
elif option == ScaleOption.TILED:
|
|
logging.warning("tiled background not implemented yet")
|
|
|
|
# raise items above wallpaper
|
|
for component in tags.ABOVE_WALLPAPER_TAGS:
|
|
self.tag_raise(component)
|
|
|
|
def update_grid(self):
|
|
logging.info("updating grid show: %s", self.show_grid.get())
|
|
if self.show_grid.get():
|
|
self.itemconfig(tags.GRIDLINE, state=tk.NORMAL)
|
|
else:
|
|
self.itemconfig(tags.GRIDLINE, state=tk.HIDDEN)
|
|
|
|
def set_wallpaper(self, filename):
|
|
logging.info("setting wallpaper: %s", filename)
|
|
if filename:
|
|
img = Image.open(filename)
|
|
self.wallpaper = img
|
|
self.wallpaper_file = filename
|
|
self.redraw_wallpaper()
|
|
else:
|
|
if self.wallpaper_id is not None:
|
|
self.delete(self.wallpaper_id)
|
|
self.wallpaper = None
|
|
self.wallpaper_file = None
|
|
|
|
def is_selection_mode(self):
|
|
return self.mode == GraphMode.SELECT
|
|
|
|
def create_edge(self, source, dest):
|
|
"""
|
|
create an edge between source node and destination node
|
|
|
|
:param CanvasNode source: source node
|
|
:param CanvasNode dest: destination node
|
|
:return: nothing
|
|
"""
|
|
if (source.id, dest.id) not in self.edges:
|
|
pos0 = source.core_node.position
|
|
x0 = pos0.x
|
|
y0 = pos0.y
|
|
edge = CanvasEdge(x0, y0, x0, y0, source.id, self)
|
|
edge.complete(dest.id)
|
|
self.edges[edge.token] = edge
|
|
self.nodes[source.id].edges.add(edge)
|
|
self.nodes[dest.id].edges.add(edge)
|
|
self.core.create_link(edge, source, dest)
|
|
|
|
def copy(self):
|
|
if self.selection:
|
|
logging.debug(
|
|
"store current selection to to_copy, number of nodes: %s",
|
|
len(self.selection),
|
|
)
|
|
self.to_copy = self.selection.keys()
|
|
|
|
def paste(self):
|
|
logging.debug("copy")
|
|
# maps original node canvas id to copy node canvas id
|
|
copy_map = {}
|
|
# the edges that will be copy over
|
|
to_copy_edges = []
|
|
for canvas_nid in self.to_copy:
|
|
core_node = self.nodes[canvas_nid].core_node
|
|
actual_x = core_node.position.x + 50
|
|
actual_y = core_node.position.y + 50
|
|
scaled_x, scaled_y = self.get_scaled_coords(actual_x, actual_y)
|
|
|
|
copy = self.core.create_node(
|
|
actual_x, actual_y, core_node.type, core_node.model
|
|
)
|
|
node = CanvasNode(
|
|
self.master, scaled_x, scaled_y, copy, self.nodes[canvas_nid].image
|
|
)
|
|
copy_map[canvas_nid] = node.id
|
|
self.core.canvas_nodes[copy.id] = node
|
|
self.nodes[node.id] = node
|
|
self.core.copy_node_config(core_node.id, copy.id)
|
|
|
|
edges = self.nodes[canvas_nid].edges
|
|
for edge in edges:
|
|
if edge.src not in self.to_copy or edge.dst not in self.to_copy:
|
|
if canvas_nid == edge.src:
|
|
self.create_edge(node, self.nodes[edge.dst])
|
|
elif canvas_nid == edge.dst:
|
|
self.create_edge(self.nodes[edge.src], node)
|
|
else:
|
|
to_copy_edges.append(tuple([edge.src, edge.dst]))
|
|
for e in to_copy_edges:
|
|
source_node_copy = self.nodes[copy_map[e[0]]]
|
|
dest_node_copy = self.nodes[copy_map[e[1]]]
|
|
self.create_edge(source_node_copy, dest_node_copy)
|