188 lines
6.1 KiB
Python
188 lines
6.1 KiB
Python
# Copyright (C) 2007, One Laptop Per Child
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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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import sys
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import gobject
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import hippo
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from canvasicon import CanvasIcon
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from iconcolor import IconColor
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from sugar.graphics import units
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from sugar.graphics.timeline import Timeline
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from sugar import profile
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STANDARD_SIZE = 0
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SMALL_SIZE = 1
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class Button(hippo.CanvasBox):
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__gtype_name__ = 'Button'
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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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'size' : (int, None, None,
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0, sys.maxint, STANDARD_SIZE,
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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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}
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def __init__(self, icon_name, color=None):
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if color:
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self._normal_color = color
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else:
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self._normal_color = IconColor('white')
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self._prelight_color = profile.get_color()
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self._inactive_color = IconColor('#808080,#424242')
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self._active = True
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self._popup = None
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self._hover_popup = False
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self._icon = CanvasIcon(icon_name=icon_name, cache=True,
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color=self._normal_color)
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hippo.CanvasBox.__init__(self)
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self._set_size(STANDARD_SIZE)
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self.append(self._icon, hippo.PACK_EXPAND)
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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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self.connect('motion-notify-event', self._motion_notify_event_cb)
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self.connect('button-press-event', self._button_press_event_cb)
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def get_popup(self):
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return self._popup
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def get_popup_context(self):
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return None
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def do_popup(self, current, n_frames):
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if self._popup:
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return
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popup = self.get_popup()
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if not popup:
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return
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popup_context = self.get_popup_context()
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[x, y] = [None, None]
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if popup_context:
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[x, y] = popup_context.get_position(self._icon, popup)
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if (not x) or (not y):
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context = self._icon.get_context()
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#[x, y] = context.translate_to_screen(self._icon)
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[x, y] = context.translate_to_widget(self._icon)
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# TODO: Any better place to do this?
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popup.props.box_width = max(popup.props.box_width,
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self.get_width_request())
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[width, height] = self._icon.get_allocation()
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y += height
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position = [x, y]
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popup.popup(x, y)
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popup.connect('motion-notify-event',
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self._popup_motion_notify_event_cb)
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popup.connect('action-completed',
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self._popup_action_completed_cb)
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if popup_context:
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popup_context.popped_up(popup)
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self._popup = popup
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def do_popdown(self, current, frame):
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if self._popup:
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self._popup.popdown()
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popup_context = self.get_popup_context()
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if popup_context:
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popup_context.popped_down(self._popup)
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self._popup = None
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def popdown(self):
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self._timeline.play('popdown', 'popdown')
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def _motion_notify_event_cb(self, button, event):
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if event.detail == hippo.MOTION_DETAIL_ENTER:
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self._timeline.play(None, 'popup')
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elif event.detail == hippo.MOTION_DETAIL_LEAVE:
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if not self._hover_popup:
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self._timeline.play('before_popdown', 'popdown')
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def _popup_motion_notify_event_cb(self, popup, event):
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if event.detail == hippo.MOTION_DETAIL_ENTER:
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self._hover_popup = True
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self._timeline.play('popup', 'popup')
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elif event.detail == hippo.MOTION_DETAIL_LEAVE:
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self._hover_popup = False
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self._timeline.play('popdown', 'popdown')
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def _popup_action_completed_cb(self, popup):
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self.popdown()
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def _set_size(self, size):
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if size == SMALL_SIZE:
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self.props.box_width = -1
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self.props.box_height = -1
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self._icon.props.scale = units.SMALL_ICON_SCALE
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else:
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self.props.box_width = units.grid_to_pixels(1)
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self.props.box_height = units.grid_to_pixels(1)
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self._icon.props.scale = units.STANDARD_ICON_SCALE
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self._size = size
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def do_set_property(self, pspec, value):
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if pspec.name == 'icon-name':
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self._icon.props.icon_name = value
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elif pspec.name == 'size':
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self._set_size(value)
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elif pspec.name == 'active':
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self._active = value
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if self._active:
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self._icon.props.color = self._normal_color
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else:
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self._icon.props.color = self._inactive_color
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else:
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hippo.CanvasBox.do_set_property(self, pspec, value)
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def do_get_property(self, pspec):
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if pspec.name == 'icon-name':
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return self._icon.props.icon_name
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elif pspec.name == 'size':
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return self._icon.props.size
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elif pspec.name == 'active':
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return self._active
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else:
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return hippo.CanvasBox.get_property(self, pspec)
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def _button_press_event_cb(self, widget, event):
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if self._active:
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self.emit_activated()
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