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# Copyright (C) 2015 Patrick Griffis <tingping@tingping.se>
# Copyright (C) 2014 Christian Hergert <christian@hergert.me>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranties of
# MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
# PURPOSE. See the GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>.
from gi.repository import GObject, Gtk
class ScrolledWindow(Gtk.ScrolledWindow):
"""
ScrolledWindow that sets a max size for the child to grow into.
Taken from the Gnome Builder project:
https://git.gnome.org/browse/gnome-builder/tree/contrib/egg/egg-scrolled-window.c
"""
__gtype_name__ = "EggScrolledWindow"
max_content_height = GObject.Property(type=int, default=-1, nick="Max Content Height",
blurb="The maximum height request that can be made")
max_content_width = GObject.Property(type=int, default=-1, nick="Max Content Width",
blurb="The maximum width request that can be made")
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.connect_after("notify::max-content-height", lambda obj, param: self.queue_resize())
self.connect_after("notify::max-content-width", lambda obj, param: self.queue_resize())
def set_max_content_height(self, value):
self.max_content_height = value
def set_max_content_width(self, value):
self.max_content_width = value
def get_max_content_height(self):
return self.max_content_height
def get_max_content_width(self):
return self.max_content_width
def do_get_preferred_height(self):
min_height, natural_height = Gtk.ScrolledWindow.do_get_preferred_height(self)
child = self.get_child()
if natural_height and self.max_content_height > -1 and child:
style = self.get_style_context()
border = style.get_border(style.get_state())
additional = border.top + border.bottom
child_min_height, child_nat_height = child.get_preferred_height()
if child_nat_height > natural_height and self.max_content_height > natural_height:
natural_height = min(self.max_content_height, child_nat_height) + additional;
return min_height, natural_height
def do_get_preferred_width(self):
min_width, natural_width = Gtk.ScrolledWindow.do_get_preferred_width(self)
child = self.get_child()
if natural_width and self.max_content_width > -1 and child:
style = self.get_style_context()
border = style.get_border(style.get_state())
additional = border.left + border.right + 1
child_min_width, child_nat_width = child.get_preferred_width()
if child_nat_width > natural_width and self.max_content_width > natural_width:
natural_width = min(self.max_content_width, child_nat_width) + additional;
return min_width, natural_width
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