g = CurrentGlyph()
for guideline in g.guidelines:
    help(guideline)
    #print(guideline.selected)
    break

 |  Data descriptors inherited from fontParts.base.base.SelectionMixin:
 |  
 |  selected
 |      The object's selection state.
 |      
 |          >>> obj.selected
 |          False
 |          >>> obj.selected = True

guidelines currently don’t implement the selected attribute in RF.

not sure if there’s a reason behind it… seems like it could be useful? @frederik

thanks!

see https://robofont.com/documentation/building-tools/api/custom-observers/#RoboFont observers.guideAdditionContextualMenuItems

from mojo.events import addObserver, clearObservers
# clearObservers()
class Test(object):
    
    def __init__(self):
        
        addObserver(self, "guideAdditionContextualMenuItems", "guideAdditionContextualMenuItems")
        
    def guideAdditionContextualMenuItems(self, notification):
        myMenuItems = [
            ("testje", self.testje), 
            ]
        notification["additionContextualMenuItems"].extend(myMenuItems)
    
    def testje(self, sender):
        print(dir(sender))

Test()

the current guideline is only available from an interactive tool.

here’s an example: (shift-click guide to flip direction)

from mojo.events import EditingTool, installTool

class FlipGuideTool(EditingTool):
    
    def getToolbarTip(self):
        return "flip guide"

    def mouseDown(self, point, clickCount):
        g = CurrentGlyph()
        guides = CurrentGuidelines()
        if guides and self.shiftDown:
            guides[0].angle += 90

installTool(FlipGuideTool())

cheers!