class StencilPreview(BaseWindowController):
def __init__(self):
self.glyph = CurrentGlyph()
# create a window
self.w = FloatingWindow((400, 400), "Stencil Preview", minSize=(200, 200))
# add the preview to the window
self.w.preview = GlyphPreview((0, 0, -0, -0))
# add an observer to get callbacks when a glyph changes in the glyph view
addObserver(self, "viewDidChangeGlyph", "viewDidChangeGlyph")
# open the window
self.updateGlyph()
self.w.open()
def viewDidChangeGlyph(self, notification):
# notification when the glyph changes in the glyph view
glyph = CurrentGlyph()
self.unsubscribeGlyph()
self.subscribeGlyph(glyph)
self.updateGlyph()
def glyphChanged(self, notification):
self.updateGlyph()
def updateGlyph(self):
glyph = self.glyph
# if the glyph is None just set None to the preview
if glyph is None:
self.w.preview.setGlyph(None)
return
# get the foreground layer
foreground = glyph.getLayer("foreground")
# get the background layer
background = glyph.getLayer("background")
# get the substract the background from the foreground layer
result = foreground % background
# set the result in the preview view
self.w.preview.setGlyph(result)
def subscribeGlyph(self, glyph):
# subscribe the glyph
self.glyph = glyph
# add an observer to glyph data changes
self.glyph.addObserver(self, "glyphChanged", "Glyph.Changed")
def unsubscribeGlyph(self):
# unsubscribe the glyph
if self.glyph is None:
return
# remove this observer for the glyph
self.glyph.removeObserver(self, "Glyph.Changed")
def windowCloseCallback(self, sender):
# notification when the window get closed
# remove the view did change glyph in the glyph view observer
removeObserver(self, "viewDidChangeGlyph")
# unsubscribe the glyph
self.unsubscribeGlyph()
super(StencilPreview, self).windowCloseCallback(sender)
def _beginObservingGlyph(self):
glyph = CurrentGlyph()
if glyph is not None:
glyph.addObserver(self, "glyphChangedChangedCallback",
"Glyph.Changed")
self.glyph = glyph
class magneticMetrics():
clearObservers()
def __init__(self):
self.leftMargin = None
self.rightMargin = None
self.status = 1
self.updateGlyph()
addObserver(self, "keyWasPressed", "keyDown")
addObserver(self, "glyphWindowOpened", "glyphWindowDidOpen")
def keyWasPressed(self, info):
glyph = self.glyph
if CurrentGlyph():
glyph = CurrentGlyph()
self.glyph = glyph
if glyph is not None:
event = info["event"]
characters = event.characters()
shiftDown = extractNSEvent(info)['shiftDown']
if shiftDown and characters == pressed_key:
if self.status == 0:
addObserver(self, "viewDidChangeGlyph",
"viewDidChangeGlyph")
addObserver(self, "glyphChanged", "draw")
addObserver(self, "drawText", "draw")
self.updateGlyph()
self.updateGlyphView()
self.status = 1
self.updateGlyph()
else:
self.status = 0
removeObserver(self, "draw")
self.updateGlyph()
self.updateGlyphView()
addObserver(self, "viewDidChangeGlyph",
"viewDidChangeGlyph")
addObserver(self, "glyphChanged", "draw")
def viewDidChangeGlyph(self, notification):
# notification when the glyph changes in the glyph view
glyph = CurrentGlyph()
self.leftMargin = glyph.leftMargin
self.rightMargin = glyph.rightMargin
removeObserver(self, "draw")
self.unsubscribeGlyph()
self.subscribeGlyph(glyph)
self.updateGlyph()
self.updateGlyphView()
def glyphChanged(self, notification):
glyph = self.glyph
if CurrentGlyph():
glyph = CurrentGlyph()
self.glyph = glyph
if glyph is not None:
if self.status == 0:
glyph.leftMargin = self.leftMargin
glyph.rightMargin = self.rightMargin
# Sends the glyph margins when tool isn’t active
# so when you activate it the good margins will be used
if self.status == 1:
self.leftMargin = glyph.leftMargin
self.rightMargin = glyph.rightMargin
def a_magnet(self):
ctx.newPath()
ctx.fill(0, 0, 0, .75)
ctx.moveTo((25, 15))
ctx.curveTo((20.0, 15.0), (17, 16), (17, 20))
ctx.lineTo((17, 45))
ctx.curveTo((17.0, 48.0), (15, 50), (9, 50))
ctx.curveTo((2, 50), (0, 48.0), (0, 45))
ctx.lineTo((0, 22))
ctx.curveTo((0, 6), (9, 0), (25, 0))
ctx.curveTo((41.0, 0.0), (50, 6), (50, 22))
ctx.lineTo((50, 45))
ctx.curveTo((50, 48), (48, 50), (41, 50))
ctx.curveTo((35, 50), (33, 48), (33, 45))
ctx.lineTo((33, 20))
ctx.curveTo((33, 16), (30, 15), (25, 15))
ctx.closePath()
ctx.drawPath()
ctx.newPath()
ctx.fill(1)
ctx.moveTo((25, 3))
ctx.curveTo((11.0, 3), (3, 8), (3, 22))
ctx.lineTo((3, 34))
ctx.lineTo((14, 34))
ctx.lineTo((14, 20))
ctx.curveTo((14.0, 14.0), (18, 12), (25, 12))
ctx.curveTo((32.0, 12.0), (36.0, 14.0), (36, 20))
ctx.lineTo((36, 34))
ctx.lineTo((47, 34))
ctx.lineTo((47, 22))
ctx.curveTo((47, 8), (39, 3), (25, 3))
ctx.closePath()
ctx.drawPath()
def drawText(self, scale):
glyph = self.glyph
scaleValue = scale["scale"]
magnet_scale = 3 # The original magnet drawing is too big, this value reduce it
ctx.save()
ctx.translate(-25 * (scaleValue / magnet_scale),
CurrentFont().info.capHeight / magnet_scale)
ctx.scale(scaleValue / magnet_scale)
self.a_magnet()
ctx.restore()
ctx.save()
ctx.translate(-25 * (scaleValue / magnet_scale) + glyph.width,
CurrentFont().info.capHeight / magnet_scale)
ctx.scale(scaleValue / magnet_scale)
self.a_magnet()
ctx.restore()
def glyphWindowOpened(self, notification):
self.glyph = CurrentGlyph()
self.leftMargin = self.glyph.leftMargin
self.rightMargin = self.glyph.rightMargin
self.updateGlyph()
def updateGlyphView(self):
# update the current glyph view
UpdateCurrentGlyphView()
def updateGlyph(self):
if CurrentGlyph():
self.glyph = CurrentGlyph()
self.leftMargin = self.glyph.leftMargin
if self.status == 1:
removeObserver(self, "draw")
self.updateGlyphView()
if self.status == 0:
addObserver(self, "drawText", "draw")
self.updateGlyphView()
def subscribeGlyph(self, glyph):
# subscribe to glyph
self.glyph = glyph
# add an observer to glyph data changes
self.glyph.addObserver(self, "glyphChanged", "Glyph.Changed")
self.updateGlyphView()
def unsubscribeGlyph(self):
# unsubscribe from glyph
if self.glyph is None:
return
# remove observer from the glyph
self.glyph.removeObserver(self, "Glyph.Changed")
self.glyph.removeObserver(self, "Glyph.draw")
self.updateGlyphView()
