Source Code for Module nukescripts.autobackdrop

 1  # Copyright (c) 2009 The Foundry Visionmongers Ltd.  All Rights Reserved. 
 2   
 3  import nuke, random 
 4   
 5 -def autoBackdrop(): 
 6    ''' 
 7    Automatically puts a backdrop behind the selected nodes. 
 8     
 9    The backdrop will be just big enough to fit all the select nodes in, with room 
10    at the top for some text in a large font. 
11    ''' 
12    selNodes = nuke.selectedNodes() 
13    if not selNodes: 
14      return nuke.nodes.BackdropNode() 
15   
16    # Calculate bounds for the backdrop node. 
17    bdX = min([node.xpos() for node in selNodes]) 
18    bdY = min([node.ypos() for node in selNodes]) 
19    bdW = max([node.xpos() + node.screenWidth() for node in selNodes]) - bdX 
20    bdH = max([node.ypos() + node.screenHeight() for node in selNodes]) - bdY 
21     
22    # Expand the bounds to leave a little border. Elements are offsets for left, top, right and bottom edges respectively 
23    left, top, right, bottom = (-10, -80, 10, 10) 
24    bdX += left 
25    bdY += top 
26    bdW += (right - left) 
27    bdH += (bottom - top) 
28     
29    n = nuke.nodes.BackdropNode(xpos = bdX, 
30                                bdwidth = bdW, 
31                                ypos = bdY, 
32                                bdheight = bdH, 
33                                tile_color = int((random.random()*(13 - 11))) + 11, 
34                                note_font_size=42) 
35   
36    # revert to previous selection 
37    n['selected'].setValue(False) 
38    for node in selNodes: 
39      node['selected'].setValue(True) 
40    
41    return n 
42