Metrics Adjuster

MetricsAdj.py

#   jackson@okaytype.com
### requires an icon file toolGoMetrics.pdf in the same folder
#   download it from www.theharrietseries.com/crypt/robofont/toolGoMetrics.pdf
### updated 2013/03/10 — linked to didfontopen observers, just set as a startup script
### updated 2013/07/16 — fixed lame selection traceback and broken spacecenter adjustments
#   to do: adjust by percent, uniform adjust, remember last setting

import os
from vanilla import *
from mojo.UI import CurrentFontWindow, CurrentSpaceCenter
from mojo.events import addObserver
from AppKit import NSImage, NSImageNameAdvanced
from mojo.extensions import getExtensionDefault, setExtensionDefault
from lib.UI.integerEditText import NumberEditText

### short term memory
# myToolIdentifier = "com.okaytype.gometrics.settings"
# print getExtensionDefault(myToolIdentifier, fallback=None)
# setExtensionDefault(myToolIdentifier, "myDefaultValue")

### link to font opening 
class AddToolbarItemObserver(object):
    
    base_path = os.path.dirname(__file__)
    
    def __init__(self):
        addObserver(self, "didOpen", "fontDidOpen")
        addObserver(self, "didOpen", "newFontDidOpen")
        
### add menu stuff
    def didOpen(self, notification):

        window = CurrentFontWindow()
        if window is None:
            return
        toolbarItems = window.getToolbarItems()
        toolbarIcon = NSImage.alloc().initByReferencingFile_(os.path.join(self.base_path, "toolGoMetrics.pdf"))
        newItem = dict(
            itemIdentifier='goMetrics',
            label='Go Metrics',
            imageObject=toolbarIcon,
            view=toolbarIcon,
            callback=self.openSheet
            )
        index=-2
        toolbarItems.insert(index, newItem)
        vanillaWindow = window.window()
        vanillaWindow.addToolbar(
             toolbarIdentifier='goMetrics',
             toolbarItems=toolbarItems, 
             addStandardItems=False
             )

    def openSheet(self, sender):
        window = CurrentFontWindow().window()
        if window is None:
            return
        SheetMetrics(window) 

### build the slide out menu
class SheetMetrics(object):

    def __init__(self, parentWindow):
        self.w = Sheet((250, 185), parentWindow)
        self.w.myTextBoxLeft = TextBox((65, 25, 0, 17), "Left Side Bearing")  #  X, Y, Width, Height
        self.w.myTextValLeft = EditText((20, 25, 40, 19), sizeStyle="small")
        self.w.myTextValLeft.set(0)
        self.w.myTextBoxRight = TextBox((65, 55, 0, 17), "Right Side Bearing")
        self.w.myTextValRight = EditText((20, 55, 40, 19), sizeStyle="small")
        self.w.myTextValRight.set(0)
        self.w.goSelected = Button((20, 95, 210, 20), "Selected", self.changeMetricsSel)
        self.w.goSpaceCtr = Button((20, 120, 210, 20), "In Space Center", self.changeMetricsSC)
        self.w.closeButtn = Button((20, 145, 210, 20), "Close", self.closeCallback)
        self.w.open()

    def closeCallback(self, sender):
        self.w.close()

### change selected metrics
    def changeMetricsSel(self, sender):
        right=self.w.myTextValRight.get()
        left=self.w.myTextValLeft.get()
        f = CurrentFont()
        for g in f.selection:
            f[g].prepareUndo('Metrics Adjustment')
            if len(f[g].components) == 0:
                f[g].rightMargin += int(right)
                f[g].leftMargin += int(left)
            elif len(f[g].components) != 0:
                for p in f[g].components:
                    if p.baseGlyph not in f.selection:
                        p.move((int(left), 0))
                f[g].rightMargin += int(right)
                f[g].rightMargin += int(left)
            else:
                return
            f[g].update
            f[g].performUndo()
           
### change spacecenter metrics
    def changeMetricsSC(self, sender):
        right=self.w.myTextValRight.get()
        left=self.w.myTextValLeft.get()
        f = CurrentFont()
        sc = CurrentSpaceCenter().get()
        for g in sc:
            if g in f:
                f[g].prepareUndo('Metrics Adjustment')
                if len(f[g].components) == 0:
                    f[g].rightMargin += int(right)
                    f[g].leftMargin += int(left)
                elif len(f[g].components) != 0:
                    for p in f[g].components:
                        if p.baseGlyph not in f.selection:
                            p.move((int(left), 0))
                    f[g].rightMargin += int(right)
                    f[g].rightMargin += int(left)
                else:
                    return
                f[g].update
                f[g].performUndo()

AddToolbarItemObserver()

I'm still figuring out vanilla's addToolbar(). Everything I've tried beyond this script gets buggy.