466 lines
14 KiB
Python
466 lines
14 KiB
Python
# Copyright (C) 2007, Eduardo Silva <edsiper@gmail.com>
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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 logging
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import gtk
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import gobject
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import time
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import hippo
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from sugar.graphics import palettegroup
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from sugar.graphics import animator
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from sugar.graphics import units
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from sugar import _sugarext
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_BOTTOM_LEFT = 0
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_BOTTOM_RIGHT = 1
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_LEFT_BOTTOM = 2
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_LEFT_TOP = 3
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_RIGHT_BOTTOM = 4
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_RIGHT_TOP = 5
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_TOP_LEFT = 6
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_TOP_RIGHT = 7
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class Palette(gobject.GObject):
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AUTOMATIC = 0
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BOTTOM = 1
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LEFT = 2
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RIGHT = 3
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TOP = 4
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__gtype_name__ = 'SugarPalette'
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__gproperties__ = {
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'invoker' : (object, None, None,
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gobject.PARAM_READWRITE),
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'position' : (gobject.TYPE_INT, None, None, 0, 5,
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0, gobject.PARAM_READWRITE)
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}
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__gsignals__ = {
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'popup' : (gobject.SIGNAL_RUN_FIRST,
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gobject.TYPE_NONE, ([])),
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'popdown' : (gobject.SIGNAL_RUN_FIRST,
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gobject.TYPE_NONE, ([]))
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}
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def __init__(self, label, accel_path=None):
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gobject.GObject.__init__(self)
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self._invoker = None
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self._group_id = None
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self._up = False
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self._position = self.AUTOMATIC
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self._palette_popup_sid = None
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self._popup_anim = animator.Animator(0.3, 10)
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self._popup_anim.add(_PopupAnimation(self))
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self._secondary_anim = animator.Animator(1.3, 10)
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self._secondary_anim.add(_SecondaryAnimation(self))
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self._popdown_anim = animator.Animator(0.6, 10)
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self._popdown_anim.add(_PopdownAnimation(self))
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self._menu = _sugarext.Menu()
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self._menu.set_min_width(units.grid_to_pixels(1))
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self._primary = _PrimaryMenuItem(label, accel_path)
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self._menu.append(self._primary)
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self._primary.show()
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self._separator = gtk.SeparatorMenuItem()
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self._menu.append(self._separator)
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self._content = _ContentMenuItem()
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self._menu.append(self._content)
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self._button_bar = _ButtonBarMenuItem()
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self._menu.append(self._button_bar)
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self._menu.connect('enter-notify-event',
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self._enter_notify_event_cb)
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self._menu.connect('leave-notify-event',
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self._leave_notify_event_cb)
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self._menu.connect('button-press-event',
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self._button_press_event_cb)
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def is_up(self):
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return self._up
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def set_primary_text(self, label, accel_path=None):
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self._primary.set_label(label, accel_path)
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def append_menu_item(self, item):
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self._separator.show()
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self._menu.insert(item, len(self._menu.get_children()) - 2)
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def insert_menu_item(self, item, index=-1):
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self._separator.show()
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if index < 0:
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self._menu.insert(item, len(self._menu.get_children()) - 2)
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else:
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self._menu.insert(item, index + 2)
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def remove_menu_item(self, index):
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if index > len(self._menu.get_children()) - 4:
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raise ValueError('index %i out of range' % index)
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self._menu.remove(self._menu.get_children()[index + 2])
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if len(self._menu.get_children()) == 0:
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self._separator.hide()
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def menu_item_count(self):
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return len(self._menu.get_children()) - 4
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def set_content(self, widget):
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self._content.set_widget(widget)
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self._content.show()
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def append_button(self, button):
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self._button_bar.append_button(button)
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self._button_bar.show()
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def set_group_id(self, group_id):
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if self._group_id:
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group = palettegroup.get_group(self._group_id)
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group.remove(self)
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if group_id:
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group = palettegroup.get_group(group_id)
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group.add(self)
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def do_set_property(self, pspec, value):
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if pspec.name == 'invoker':
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self._invoker = value
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self._invoker.add_listener(self)
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elif pspec.name == 'position':
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self._position = value
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else:
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raise AssertionError
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def do_get_property(self, pspec):
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if pspec.name == 'invoker':
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return self._invoker
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elif pspec.name == 'position':
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return self._position
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else:
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raise AssertionError
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def _get_position(self, alignment):
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# Invoker: x, y, width and height
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inv_rect = self._invoker.get_rect()
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palette_width, palette_height = self._menu.size_request()
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if alignment == _BOTTOM_LEFT:
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x = inv_rect.x
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y = inv_rect.y + inv_rect.height
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elif alignment == _BOTTOM_RIGHT:
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x = (inv_rect.x + inv_rect.width) - palette_width
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y = inv_rect.y + inv_rect.height
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elif alignment == _LEFT_BOTTOM:
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x = inv_rect.x - palette_width
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y = inv_rect.y
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elif alignment == _LEFT_TOP:
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x = inv_rect.x - palette_width
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y = (inv_rect.y + inv_rect.height) - palette_height
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elif alignment == _RIGHT_BOTTOM:
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x = inv_rect.x + inv_rect.width
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y = inv_rect.y
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elif alignment == _RIGHT_TOP:
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x = inv_rect.x + inv_rect.width
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y = (inv_rect.y + inv_rect.height) - palette_height
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elif alignment == _TOP_LEFT:
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x = inv_rect.x
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y = inv_rect.y - palette_height
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elif alignment == _TOP_RIGHT:
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x = (inv_rect.x + inv_rect.width) - palette_width
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y = inv_rect.y - palette_height
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return x, y
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def _in_screen(self, x, y):
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[width, height] = self._menu.size_request()
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screen_area = self._invoker.get_screen_area()
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return x >= screen_area.x and \
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y >= screen_area.y and \
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x + width <= screen_area.width and \
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y + height <= screen_area.height
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def _get_automatic_position(self):
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alignments = [ _BOTTOM_LEFT, _BOTTOM_RIGHT,
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_LEFT_BOTTOM, _LEFT_TOP,
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_RIGHT_BOTTOM, _RIGHT_TOP,
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_TOP_LEFT, _TOP_RIGHT ]
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for alignment in alignments:
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x, y = self._get_position(alignment)
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if self._in_screen(x, y):
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return x, y
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# We fail
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return (0, 0)
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def _show(self):
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x = y = 0
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if self._position == self.AUTOMATIC:
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x, y = self._get_automatic_position()
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elif self._position == self.BOTTOM:
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x, y = self._get_position(_BOTTOM_LEFT)
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if not self._in_screen(x, y):
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x, y = self._get_position(_BOTTOM_RIGHT)
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elif self._position == self.LEFT:
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x, y = self._get_position(_LEFT_BOTTOM)
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if not self._in_screen(x, y):
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x, y = self._get_position(_LEFT_TOP)
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elif self._position == self.RIGHT:
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x, y = self._get_position(_RIGHT_BOTTOM)
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if not self._in_screen(x, y):
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x, y = self._get_position(_RIGHT_TOP)
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elif self._position == self.TOP:
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x, y = self._get_position(_TOP_LEFT)
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if not self._in_screen(x, y):
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x, y = self._get_position(_TOP_RIGHT)
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self._palette_popup_sid = _palette_observer.connect('popup',
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self._palette_observer_popup_cb)
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self._menu.popup(x, y)
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self._up = True
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_palette_observer.emit('popup', self)
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self.emit('popup')
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def _hide(self):
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if not self._palette_popup_sid is None:
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_palette_observer.disconnect(self._palette_popup_sid)
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self._palette_popup_sid = None
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self._menu.popdown()
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self._up = False
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self.emit('popdown')
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def popup(self):
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self._popdown_anim.stop()
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self._popup_anim.start()
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self._secondary_anim.start()
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def popdown(self, inmediate=False):
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self._secondary_anim.stop()
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self._popup_anim.stop()
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if not inmediate:
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self._popdown_anim.start()
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else:
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self._hide()
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def invoker_mouse_enter(self):
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self.popup()
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def invoker_mouse_leave(self):
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self.popdown()
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def _enter_notify_event_cb(self, widget, event):
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if event.detail == gtk.gdk.NOTIFY_NONLINEAR:
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self._popdown_anim.stop()
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def _leave_notify_event_cb(self, widget, event):
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if event.detail == gtk.gdk.NOTIFY_NONLINEAR:
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self.popdown()
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def _button_press_event_cb(self, widget, event):
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pass
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def _palette_observer_popup_cb(self, observer, palette):
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if self != palette:
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self._hide()
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class _PrimaryMenuItem(gtk.MenuItem):
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def __init__(self, label, accel_path):
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gtk.MenuItem.__init__(self)
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self.set_border_width(units.points_to_pixels(1))
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self._set_label(label, accel_path)
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def set_label(self, label, accel_path):
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self.remove(self._label)
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self._set_label(label, accel_path)
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def _set_label(self, label, accel_path):
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self._label = gtk.AccelLabel(label)
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self._label.set_accel_widget(self)
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if accel_path:
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self.set_accel_path(accel_path)
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self._label.set_alignment(0.0, 0.5)
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self.add(self._label)
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self._label.show()
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class _ContentMenuItem(gtk.MenuItem):
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def __init__(self):
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gtk.MenuItem.__init__(self)
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def set_widget(self, widget):
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if self.child:
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self.remove(self.child)
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self.add(widget)
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def is_empty(self):
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return self.child is None
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class _ButtonBarMenuItem(gtk.MenuItem):
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def __init__(self):
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gtk.MenuItem.__init__(self)
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self._hbar = gtk.HButtonBox()
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self.add(self._hbar)
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self._hbar.show()
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def append_button(self, button):
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self._hbar.pack_start(button)
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def is_empty(self):
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return len(self._hbar.get_children()) == 0
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class _PopupAnimation(animator.Animation):
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def __init__(self, palette):
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animator.Animation.__init__(self, 0.0, 1.0)
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self._palette = palette
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def next_frame(self, current):
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if current == 1.0:
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self._palette._primary.show()
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for menu_item in self._palette._menu.get_children()[1:]:
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menu_item.hide()
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self._palette._show()
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class _SecondaryAnimation(animator.Animation):
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def __init__(self, palette):
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animator.Animation.__init__(self, 0.0, 1.0)
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self._palette = palette
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def next_frame(self, current):
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if current == 1.0:
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middle_menu_items = self._palette._menu.get_children()
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middle_menu_items = middle_menu_items[2:len(middle_menu_items) - 2]
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if middle_menu_items or \
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not self._palette._content.is_empty() or \
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not self._palette._button_bar.is_empty():
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self._palette._separator.show()
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for menu_item in middle_menu_items:
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menu_item.show()
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if not self._palette._content.is_empty():
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self._palette._content.show()
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if not self._palette._button_bar.is_empty():
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self._palette._button_bar.show()
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self._palette._show()
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class _PopdownAnimation(animator.Animation):
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def __init__(self, palette):
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animator.Animation.__init__(self, 0.0, 1.0)
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self._palette = palette
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def next_frame(self, current):
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if current == 1.0:
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self._palette._hide()
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class Invoker(object):
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def __init__(self):
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self._listeners = []
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def add_listener(self, listener):
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self._listeners.append(listener)
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def notify_mouse_enter(self):
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for listener in self._listeners:
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listener.invoker_mouse_enter()
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def notify_mouse_leave(self):
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for listener in self._listeners:
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listener.invoker_mouse_leave()
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def get_screen_area(self):
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width = gtk.gdk.screen_width()
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height = gtk.gdk.screen_height()
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return gtk.gdk.Rectangle(0, 0, width, height)
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class WidgetInvoker(Invoker):
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def __init__(self, widget):
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Invoker.__init__(self)
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self._widget = widget
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widget.connect('enter-notify-event', self._enter_notify_event_cb)
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widget.connect('leave-notify-event', self._leave_notify_event_cb)
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def get_rect(self):
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win_x, win_y = self._widget.window.get_origin()
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rectangle = self._widget.get_allocation()
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x = win_x + rectangle.x
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y = win_y + rectangle.y
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width = rectangle.width
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height = rectangle.height
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return gtk.gdk.Rectangle(x, y, width, height)
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def _enter_notify_event_cb(self, widget, event):
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self.notify_mouse_enter()
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def _leave_notify_event_cb(self, widget, event):
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self.notify_mouse_leave()
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class CanvasInvoker(Invoker):
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def __init__(self, item):
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Invoker.__init__(self)
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self._item = item
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item.connect('motion-notify-event',
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self._motion_notify_event_cb)
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def get_rect(self):
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context = self._item.get_context()
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if context:
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x, y = context.translate_to_screen(self._item)
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width, height = self._item.get_allocation()
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return gtk.gdk.Rectangle(x, y, width, height)
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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.notify_mouse_enter()
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elif event.detail == hippo.MOTION_DETAIL_LEAVE:
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self.notify_mouse_leave()
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return False
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class _PaletteObserver(gobject.GObject):
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__gtype_name__ = 'SugarPaletteObserver'
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__gsignals__ = {
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'popup': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE, ([object]))
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}
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def __init__(self):
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gobject.GObject.__init__(self)
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_palette_observer = _PaletteObserver()
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