# encoding: utf-8

from contextlib import contextmanager

from ..lib.cocoa import *

### graphics context mgmt ###

def _save():

NSGraphicsContext.currentContext().saveGraphicsState()

def _restore():

NSGraphicsContext.currentContext().restoreGraphicsState()

@contextmanager

def _ns_context():

ctx = NSGraphicsContext.currentContext()

ctx.saveGraphicsState()

yield ctx

ctx.restoreGraphicsState()

@contextmanager

def _cg_context():

port = NSGraphicsContext.currentContext().graphicsPort()

CGContextSaveGState(port)

yield port

CGContextRestoreGState(port)

@contextmanager

def _cg_layer():

# CGContextBeginTransparencyLayerWithRect(_cg_port(), <bounds>, None)

CGContextBeginTransparencyLayer(_cg_port(), None)

yield

CGContextEndTransparencyLayer(_cg_port())

def _cg_port():

return NSGraphicsContext.currentContext().graphicsPort()

### submodule init ###

# pool the submodules' __all__ namespaces into our own

from . import atoms, effects, colors, text, typography, bezier, image, geometry

modules = atoms, effects, colors, text, typography, bezier, image, geometry

ns = {}

for module in modules:

ns.update( (a,getattr(module,a)) for a in module.__all__ )

globals().update(ns)

__all__ = list(ns.keys())

# called by a Context to do the dependency injection™

def bind(ctx):

for module in modules:

# all of the gfx.* submodules refer to a global called _ctx to access the

# parent context. before a user script is interpreted, the sandbox resets the

# context which calls this method as a side-effect.

setattr(module, '_ctx', ctx)