2006-10-15 01:08:44 +02:00
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# Copyright (C) 2006, Red Hat, Inc.
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2 of the License, or (at your option) any later version.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this library; if not, write to the
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# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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# Boston, MA 02111-1307, USA.
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2007-02-28 19:53:06 +01:00
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import logging
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2006-10-01 19:08:26 +02:00
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import re
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import gobject
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import gtk
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import hippo
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import rsvg
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import cairo
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2007-01-14 19:59:11 +01:00
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import time
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2006-10-01 19:08:26 +02:00
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2007-02-21 14:13:52 +01:00
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from sugar.graphics.timeline import Timeline
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2007-02-22 22:51:24 +01:00
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from sugar.graphics.popup import Popup
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from sugar.graphics import color
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2007-02-23 17:08:37 +01:00
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from sugar.graphics.xocolor import XoColor
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2007-02-22 22:51:24 +01:00
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from sugar.graphics import font
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from sugar.graphics import units
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2006-10-01 19:08:26 +02:00
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2007-01-14 19:59:11 +01:00
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class _IconCacheIcon:
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2007-02-23 17:08:37 +01:00
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def __init__(self, name, fill_color, stroke_color, now):
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2007-01-14 19:59:11 +01:00
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self.data_size = None
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2007-02-23 17:08:37 +01:00
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self.handle = self._read_icon_data(name, fill_color, stroke_color)
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2007-01-14 19:59:11 +01:00
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self.last_used = now
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self.usage_count = 1
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2006-10-01 19:08:26 +02:00
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2007-02-23 17:08:37 +01:00
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def _read_icon_data(self, filename, fill_color, stroke_color):
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2006-12-04 20:12:24 +01:00
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icon_file = open(filename, 'r')
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2007-01-14 19:59:11 +01:00
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data = icon_file.read()
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icon_file.close()
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2006-10-01 19:08:26 +02:00
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2007-02-23 17:08:37 +01:00
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if fill_color:
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entity = '<!ENTITY fill_color "%s">' % fill_color
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2006-12-04 20:12:24 +01:00
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data = re.sub('<!ENTITY fill_color .*>', entity, data)
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2006-10-01 19:08:26 +02:00
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2007-02-23 17:08:37 +01:00
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if stroke_color:
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entity = '<!ENTITY stroke_color "%s">' % stroke_color
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2006-12-04 20:12:24 +01:00
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data = re.sub('<!ENTITY stroke_color .*>', entity, data)
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2006-10-01 19:08:26 +02:00
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2007-01-14 19:59:11 +01:00
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self.data_size = len(data)
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return rsvg.Handle(data=data)
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2006-10-01 19:08:26 +02:00
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2007-01-14 19:59:11 +01:00
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class _IconCache:
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_CACHE_MAX = 50000 # in bytes
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2007-01-12 21:35:53 +01:00
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2007-01-14 19:59:11 +01:00
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def __init__(self):
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self._icons = {}
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self._theme = gtk.icon_theme_get_default()
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self._cache_size = 0
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2006-10-01 19:08:26 +02:00
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2007-01-27 01:36:31 +01:00
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def _get_real_name_from_theme(self, name):
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info = self._theme.lookup_icon(name, 50, 0)
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2007-01-11 23:57:06 +01:00
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if not info:
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2007-01-14 19:59:11 +01:00
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raise ValueError("Icon '" + name + "' not found.")
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fname = info.get_filename()
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del info
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return fname
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def _cache_cleanup(self, key, now):
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while self._cache_size > self._CACHE_MAX:
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evict_key = None
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oldest_key = None
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oldest_time = now
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for icon_key, icon in self._icons.items():
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# Don't evict the icon we are about to use if it's in the cache
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if icon_key == key:
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continue
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# evict large icons first
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if icon.data_size > self._CACHE_MAX:
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evict_key = icon_key
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break
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# evict older icons next; those used over 2 minutes ago
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if icon.last_used < now - 120:
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evict_key = icon_key
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break
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# otherwise, evict the oldest
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if oldest_time > icon.last_used:
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oldest_time = icon.last_used
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oldest_key = icon_key
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# If there's nothing specific to evict, try evicting
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# the oldest thing
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if not evict_key:
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if not oldest_key:
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break
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evict_key = oldest_key
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self._cache_size -= self._icons[evict_key].data_size
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del self._icons[evict_key]
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2007-02-23 17:08:37 +01:00
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def get_handle(self, name, fill_color, stroke_color):
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if name == None:
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return None
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2007-01-14 19:59:11 +01:00
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if name[0:6] == "theme:":
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name = self._get_real_name_from_theme(name[6:])
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2007-01-11 23:57:06 +01:00
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2007-02-23 17:08:37 +01:00
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if fill_color or stroke_color:
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key = (name, fill_color, stroke_color)
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2006-12-04 20:12:24 +01:00
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else:
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2007-01-14 19:59:11 +01:00
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key = name
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# If we're over the cache limit, evict something from the cache
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now = time.time()
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self._cache_cleanup(key, now)
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2006-10-01 19:08:26 +02:00
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2006-12-04 20:12:24 +01:00
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if self._icons.has_key(key):
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icon = self._icons[key]
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2007-01-14 19:59:11 +01:00
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icon.usage_count += 1
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icon.last_used = now
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2006-12-04 20:12:24 +01:00
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else:
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2007-02-23 17:08:37 +01:00
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icon = _IconCacheIcon(name, fill_color, stroke_color, now)
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2006-12-04 20:12:24 +01:00
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self._icons[key] = icon
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2007-01-14 19:59:11 +01:00
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self._cache_size += icon.data_size
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return icon.handle
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2006-10-01 19:08:26 +02:00
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class CanvasIcon(hippo.CanvasBox, hippo.CanvasItem):
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__gtype_name__ = 'CanvasIcon'
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__gproperties__ = {
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'icon-name' : (str, None, None, None,
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gobject.PARAM_READWRITE),
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'xo-color' : (object, None, None,
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gobject.PARAM_WRITABLE),
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'fill-color' : (object, None, None,
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gobject.PARAM_READWRITE),
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'stroke-color' : (object, None, None,
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gobject.PARAM_READWRITE),
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'scale' : (float, None, None,
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2007-02-24 17:15:47 +01:00
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0.0, 1024.0, units.STANDARD_ICON_SCALE,
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2007-02-23 17:08:37 +01:00
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gobject.PARAM_READWRITE),
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'cache' : (bool, None, None, False,
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gobject.PARAM_READWRITE),
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'tooltip' : (str, None, None, None,
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2007-02-28 19:53:06 +01:00
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gobject.PARAM_READWRITE),
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'active' : (bool, None, None, True,
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gobject.PARAM_READWRITE)
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2006-12-04 20:12:24 +01:00
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}
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_cache = _IconCache()
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def __init__(self, **kwargs):
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2007-01-15 00:20:43 +01:00
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self._buffers = {}
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self._cur_buffer = None
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2007-02-24 17:15:47 +01:00
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self._scale = units.STANDARD_ICON_SCALE
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2007-02-23 17:08:37 +01:00
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self._fill_color = None
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self._stroke_color = None
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2006-12-04 20:12:24 +01:00
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self._icon_name = None
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self._cache = False
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self._handle = None
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2007-02-21 14:13:52 +01:00
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self._popup = None
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self._hover_popup = False
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2007-02-22 22:51:24 +01:00
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self._tooltip = False
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2007-02-28 19:53:06 +01:00
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self._active = True
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2007-02-22 22:51:24 +01:00
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2007-02-21 14:13:52 +01:00
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self._timeline = Timeline(self)
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self._timeline.add_tag('popup', 6, 6)
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self._timeline.add_tag('before_popdown', 7, 7)
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self._timeline.add_tag('popdown', 8, 8)
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2006-12-04 20:12:24 +01:00
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hippo.CanvasBox.__init__(self, **kwargs)
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2007-02-23 20:39:52 +01:00
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self.connect_after('motion-notify-event', self._motion_notify_event_cb)
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2006-12-04 20:12:24 +01:00
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2007-01-15 00:20:43 +01:00
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def _clear_buffers(self):
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2007-01-15 15:53:41 +01:00
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cur_buf_key = self._get_current_buffer_key()
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2007-01-15 00:20:43 +01:00
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for key in self._buffers.keys():
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2007-01-15 15:53:41 +01:00
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if key != cur_buf_key:
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del self._buffers[key]
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2007-01-15 00:20:43 +01:00
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self._buffers = {}
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2007-01-08 23:12:20 +01:00
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2006-12-04 20:12:24 +01:00
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def do_set_property(self, pspec, value):
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if pspec.name == 'icon-name':
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2007-01-15 00:20:43 +01:00
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if self._icon_name != value and not self._cache:
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self._clear_buffers()
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2006-12-04 20:12:24 +01:00
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self._icon_name = value
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2007-01-27 01:36:31 +01:00
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self._handle = None
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2006-12-04 20:12:24 +01:00
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self.emit_paint_needed(0, 0, -1, -1)
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2007-02-23 17:08:37 +01:00
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elif pspec.name == 'xo-color':
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self.props.fill_color = color.HTMLColor(value.get_fill_color())
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self.props.stroke_color = color.HTMLColor(value.get_stroke_color())
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elif pspec.name == 'fill-color':
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if self._fill_color != value:
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if not self._cache:
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self._clear_buffers()
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self._fill_color = value
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self._handle = None
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self.emit_paint_needed(0, 0, -1, -1)
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elif pspec.name == 'stroke-color':
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if self._stroke_color != value:
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if not self._cache:
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self._clear_buffers()
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self._stroke_color = value
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self._handle = None
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self.emit_paint_needed(0, 0, -1, -1)
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2007-01-27 01:36:31 +01:00
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elif pspec.name == 'scale':
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if self._scale != value and not self._cache:
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2007-01-15 00:20:43 +01:00
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self._clear_buffers()
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2007-01-27 01:36:31 +01:00
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self._scale = value
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2006-12-04 20:12:24 +01:00
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self.emit_request_changed()
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2007-01-15 00:20:43 +01:00
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elif pspec.name == 'cache':
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self._cache = value
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2007-02-22 22:51:24 +01:00
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elif pspec.name == 'tooltip':
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self._tooltip = value
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2007-02-28 19:53:06 +01:00
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elif pspec.name == 'active':
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if self._active != value:
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if not self._cache:
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self._clear_buffers()
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self._active = value
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self._handle = None
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self.emit_paint_needed(0, 0, -1, -1)
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def _choose_colors(self):
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fill_color = None
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stroke_color = None
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if self._active:
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if self._fill_color:
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fill_color = self._fill_color.get_html()
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if self._stroke_color:
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stroke_color = self._stroke_color.get_html()
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else:
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stroke_color = color.ICON_STROKE_INACTIVE.get_html()
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if self._fill_color:
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fill_color = self._fill_color.get_html()
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return [fill_color, stroke_color]
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2007-01-27 01:36:31 +01:00
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def _get_handle(self):
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if not self._handle:
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cache = CanvasIcon._cache
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2007-02-28 19:53:06 +01:00
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[fill_color, stroke_color] = self._choose_colors()
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2007-02-23 17:08:37 +01:00
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self._handle = cache.get_handle(self._icon_name, fill_color,
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stroke_color)
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return self._handle
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def _get_current_buffer_key(self):
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2007-02-28 19:53:06 +01:00
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[fill_color, stroke_color] = self._choose_colors()
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return (self._icon_name, fill_color, stroke_color, self._scale)
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2007-01-15 15:53:41 +01:00
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2006-12-04 20:12:24 +01:00
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def do_get_property(self, pspec):
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if pspec.name == 'scale':
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return self._scale
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2006-12-04 20:12:24 +01:00
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elif pspec.name == 'icon-name':
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return self._icon_name
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2007-02-23 17:08:37 +01:00
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elif pspec.name == 'fill-color':
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return self._fill_color
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elif pspec.name == 'stroke-color':
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return self._stroke_color
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2007-01-15 00:20:43 +01:00
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elif pspec.name == 'cache':
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return self._cache
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2007-02-22 22:51:24 +01:00
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elif pspec.name == 'tooltip':
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return self._tooltip
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2007-02-28 19:53:06 +01:00
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elif pspec.name == 'active':
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return self._active
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2007-01-15 00:20:43 +01:00
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2007-01-27 01:36:31 +01:00
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def _get_icon_size(self):
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handle = self._get_handle()
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if handle:
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dimensions = handle.get_dimension_data()
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width = int(dimensions[0] * self._scale) + 1
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height = int(dimensions[1] * self._scale) + 1
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return [width, height]
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return [0, 0]
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def _get_buffer(self, cr, handle):
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key = self._get_current_buffer_key()
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buf = None
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2007-01-27 01:36:31 +01:00
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2007-01-15 00:20:43 +01:00
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if self._buffers.has_key(key):
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buf = self._buffers[key]
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else:
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2006-12-04 20:12:24 +01:00
|
|
|
target = cr.get_target()
|
|
|
|
|
2007-01-27 01:36:31 +01:00
|
|
|
[w, h] = self._get_icon_size()
|
|
|
|
buf = target.create_similar(cairo.CONTENT_COLOR_ALPHA, w, h)
|
2006-12-04 20:12:24 +01:00
|
|
|
|
2007-01-15 00:20:43 +01:00
|
|
|
ctx = cairo.Context(buf)
|
2007-01-27 01:36:31 +01:00
|
|
|
ctx.scale(self._scale, self._scale)
|
2006-12-04 20:12:24 +01:00
|
|
|
handle.render_cairo(ctx)
|
|
|
|
del ctx
|
2007-01-15 00:20:43 +01:00
|
|
|
self._buffers[key] = buf
|
2006-12-04 20:12:24 +01:00
|
|
|
|
2007-01-15 00:20:43 +01:00
|
|
|
return buf
|
2006-12-04 20:12:24 +01:00
|
|
|
|
|
|
|
def do_paint_below_children(self, cr, damaged_box):
|
2007-01-27 01:36:31 +01:00
|
|
|
handle = self._get_handle()
|
|
|
|
if handle == None:
|
|
|
|
return
|
2006-12-04 20:12:24 +01:00
|
|
|
|
2007-01-15 00:20:43 +01:00
|
|
|
buf = self._get_buffer(cr, handle)
|
2006-12-04 20:12:24 +01:00
|
|
|
|
|
|
|
[width, height] = self.get_allocation()
|
2007-01-27 01:36:31 +01:00
|
|
|
[icon_width, icon_height] = self._get_icon_size()
|
|
|
|
x = (width - icon_width) / 2
|
|
|
|
y = (height - icon_height) / 2
|
2006-12-04 20:12:24 +01:00
|
|
|
|
|
|
|
cr.set_source_surface(buf, x, y)
|
|
|
|
cr.paint()
|
|
|
|
|
2007-01-27 01:36:31 +01:00
|
|
|
def do_get_content_width_request(self):
|
|
|
|
[width, height] = self._get_icon_size()
|
|
|
|
return width
|
2007-01-26 17:28:45 +01:00
|
|
|
|
2007-01-27 01:36:31 +01:00
|
|
|
def do_get_content_height_request(self, for_width):
|
|
|
|
[width, height] = self._get_icon_size()
|
|
|
|
return height
|
2007-01-26 17:28:45 +01:00
|
|
|
|
2007-03-09 13:12:52 +01:00
|
|
|
def do_button_press_event(self, event):
|
2006-12-04 20:12:24 +01:00
|
|
|
item.emit_activated()
|
2007-03-09 13:12:52 +01:00
|
|
|
return True
|
2007-02-21 14:13:52 +01:00
|
|
|
|
|
|
|
def get_popup(self):
|
2007-02-22 22:51:24 +01:00
|
|
|
if self._tooltip:
|
|
|
|
tooltip_popup = Popup()
|
2007-02-25 15:05:56 +01:00
|
|
|
text = hippo.CanvasText(text=self._tooltip)
|
|
|
|
text.props.background_color = color.MENU_BACKGROUND.get_int()
|
|
|
|
text.props.color = color.LABEL_TEXT.get_int()
|
|
|
|
text.props.font_desc = font.DEFAULT.get_pango_desc()
|
|
|
|
text.props.padding = units.points_to_pixels(5)
|
|
|
|
tooltip_popup.append(text)
|
2007-02-22 22:51:24 +01:00
|
|
|
|
|
|
|
return tooltip_popup
|
|
|
|
else:
|
|
|
|
return None
|
2007-02-21 14:13:52 +01:00
|
|
|
|
|
|
|
def get_popup_context(self):
|
|
|
|
return None
|
|
|
|
|
|
|
|
def do_popup(self, current, n_frames):
|
|
|
|
if self._popup:
|
|
|
|
return
|
|
|
|
|
|
|
|
popup = self.get_popup()
|
|
|
|
if not popup:
|
|
|
|
return
|
|
|
|
|
|
|
|
popup_context = self.get_popup_context()
|
|
|
|
|
|
|
|
[x, y] = [None, None]
|
|
|
|
if popup_context:
|
|
|
|
try:
|
|
|
|
[x, y] = popup_context.get_position(self, popup)
|
|
|
|
except NotImplementedError:
|
|
|
|
pass
|
|
|
|
|
|
|
|
if [x, y] == [None, None]:
|
|
|
|
context = self.get_context()
|
2007-02-21 21:29:08 +01:00
|
|
|
[x, y] = context.translate_to_screen(self)
|
2007-02-21 14:13:52 +01:00
|
|
|
|
|
|
|
# TODO: Any better place to do this?
|
2007-02-24 18:18:50 +01:00
|
|
|
popup.props.box_width = max(popup.get_width_request(),
|
2007-02-21 14:13:52 +01:00
|
|
|
self.get_width_request())
|
|
|
|
|
|
|
|
[width, height] = self.get_allocation()
|
|
|
|
y += height
|
|
|
|
position = [x, y]
|
|
|
|
|
|
|
|
popup.popup(x, y)
|
|
|
|
popup.connect('motion-notify-event',
|
2007-02-23 20:39:52 +01:00
|
|
|
self.popup_motion_notify_event_cb)
|
2007-02-21 14:13:52 +01:00
|
|
|
popup.connect('action-completed',
|
|
|
|
self._popup_action_completed_cb)
|
|
|
|
|
|
|
|
if popup_context:
|
|
|
|
popup_context.popped_up(popup)
|
|
|
|
|
|
|
|
self._popup = popup
|
|
|
|
|
|
|
|
def do_popdown(self, current, frame):
|
|
|
|
if self._popup:
|
|
|
|
self._popup.popdown()
|
|
|
|
|
|
|
|
popup_context = self.get_popup_context()
|
|
|
|
if popup_context:
|
|
|
|
popup_context.popped_down(self._popup)
|
|
|
|
|
|
|
|
self._popup = None
|
|
|
|
|
|
|
|
def popdown(self):
|
|
|
|
self._timeline.play('popdown', 'popdown')
|
|
|
|
|
|
|
|
def _motion_notify_event_cb(self, button, event):
|
|
|
|
if event.detail == hippo.MOTION_DETAIL_ENTER:
|
|
|
|
self._timeline.play(None, 'popup')
|
2007-02-23 20:39:52 +01:00
|
|
|
self.prelight(enter=True)
|
2007-02-21 14:13:52 +01:00
|
|
|
elif event.detail == hippo.MOTION_DETAIL_LEAVE:
|
|
|
|
if not self._hover_popup:
|
|
|
|
self._timeline.play('before_popdown', 'popdown')
|
2007-02-23 20:39:52 +01:00
|
|
|
self.prelight(enter=False)
|
|
|
|
return False
|
2007-02-21 14:13:52 +01:00
|
|
|
|
2007-02-23 20:39:52 +01:00
|
|
|
def popup_motion_notify_event_cb(self, popup, event):
|
2007-02-21 14:13:52 +01:00
|
|
|
if event.detail == hippo.MOTION_DETAIL_ENTER:
|
|
|
|
self._hover_popup = True
|
|
|
|
self._timeline.play('popup', 'popup')
|
2007-02-23 20:39:52 +01:00
|
|
|
self.prelight(enter=True)
|
2007-02-21 14:13:52 +01:00
|
|
|
elif event.detail == hippo.MOTION_DETAIL_LEAVE:
|
|
|
|
self._hover_popup = False
|
|
|
|
self._timeline.play('popdown', 'popdown')
|
2007-02-23 20:39:52 +01:00
|
|
|
self.prelight(enter=False)
|
|
|
|
return False
|
2007-02-21 14:13:52 +01:00
|
|
|
|
|
|
|
def _popup_action_completed_cb(self, popup):
|
|
|
|
self.popdown()
|
2007-02-23 20:39:52 +01:00
|
|
|
|
|
|
|
def prelight(self, enter):
|
|
|
|
"""
|
|
|
|
Override this method for adding prelighting behavior.
|
|
|
|
"""
|
|
|
|
pass
|
2007-02-28 15:42:41 +01:00
|
|
|
|
|
|
|
def get_icon_state(base_name, perc):
|
|
|
|
step = 5
|
|
|
|
strength = round(perc / step) * step
|
|
|
|
icon_theme = gtk.icon_theme_get_default()
|
|
|
|
|
|
|
|
while strength <= 100:
|
|
|
|
icon_name = '%s-%03d' % (base_name, strength)
|
|
|
|
if icon_theme.has_icon(icon_name):
|
|
|
|
return 'theme:' + icon_name
|
|
|
|
|
|
|
|
strength = strength + step
|