renpy/renpy — pull request #168 by kyouryuukunn (2013-10-07 13:18:10+00:00)
Title: add gallery Previous,Next,Close,EnablePreview actions

I tryed to resolve the part of #22
I added below actions

def Close(self):
"""
:doc: gallery method

Close the current image.
"""

def Next(self, diff=False):
"""
:doc: gallery method

This is the action to advance to the next unlocked image.
When the last image is showing, close it.

`diff`
If True, advance to the next image in the button, otherwise
advance to the image in the next button.
"""

def Previous(self):
"""
:doc: gallery method

This is the action to return to the previous unlocked image.
When the first image is showing, close it.
"""

def EnablePreview(self, preview_time=10):
"""
:doc: gallery method

This is the action to enable preview_mode.

`preview_time`
This is a number in second, defaults to 10. advance to the next unlocked image
when this time is elapsed if preview_mode is enable.
"""

And I use "gallery" screen in place of "_gallery" if exist.

By the way, what is the cradle song image gallery meaning?