317 lines
9.8 KiB
Python
317 lines
9.8 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 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 animator
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from sugar import _sugarext
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ALIGNMENT_AUTOMATIC = 0
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ALIGNMENT_BOTTOM_LEFT = 1
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ALIGNMENT_BOTTOM_RIGHT = 2
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ALIGNMENT_LEFT_BOTTOM = 3
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ALIGNMENT_LEFT_TOP = 4
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ALIGNMENT_RIGHT_BOTTOM = 5
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ALIGNMENT_RIGHT_TOP = 6
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ALIGNMENT_TOP_LEFT = 7
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ALIGNMENT_TOP_RIGHT = 8
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class Palette(gobject.GObject):
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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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'alignment' : (gobject.TYPE_INT, None, None, 0, 8,
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ALIGNMENT_AUTOMATIC,
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gobject.PARAM_READWRITE)
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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._alignment = ALIGNMENT_AUTOMATIC
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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._popup_anim.start()
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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._popdown_anim.start()
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self._menu = _sugarext.Menu()
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primary = _PrimaryMenuItem(label, accel_path)
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self._menu.append(primary)
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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 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 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 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 == 'alignment':
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self._alignment = value
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else:
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raise AssertionError
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def _get_position(self):
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if self._alignment == ALIGNMENT_AUTOMATIC:
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x, y = self._try_position(ALIGNMENT_BOTTOM_LEFT)
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if x == -1:
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x, y = self._try_position(ALIGNMENT_BOTTOM_LEFT)
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if x == -1:
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x, y = self._try_position(ALIGNMENT_BOTTOM_RIGHT)
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if x == -1:
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x, y = self._try_position(ALIGNMENT_LEFT_BOTTOM)
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if x == -1:
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x, y = self._try_position(ALIGNMENT_LEFT_TOP)
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if x == -1:
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x, y = self._try_position(ALIGNMENT_RIGHT_BOTTOM)
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if x == -1:
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x, y = self._try_position(ALIGNMENT_RIGHT_TOP)
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if x == -1:
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x, y = self._try_position(ALIGNMENT_LEFT_BOTTOM)
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if x == -1:
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x, y = self._try_position(ALIGNMENT_LEFT_BOTTOM)
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else:
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x, y = self._position_for_alignment(self._alignment)
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return (x, y)
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def _try_position(self, alignment):
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x, y = self._position_for_alignment(alignment)
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allocation = self._menu.get_allocation()
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if (x + allocation.width > gtk.gdk.screen_width()) or \
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(y + allocation.height > gtk.gdk.screen_height()):
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return (-1, -1)
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else:
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return (x, y)
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def _position_for_alignment(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_rect = self._menu.get_allocation()
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if alignment == ALIGNMENT_BOTTOM_LEFT:
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move_x = inv_rect.x
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move_y = inv_rect.y + inv_rect.height
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elif alignment == ALIGNMENT_BOTTOM_RIGHT:
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move_x = (inv_rect.x + inv_rect.width) - self._width
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move_y = inv_rect.y + inv_rect.height
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elif alignment == ALIGNMENT_LEFT_BOTTOM:
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move_x = inv_rect.x - self._width
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move_y = inv_rect.y
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elif alignment == ALIGNMENT_LEFT_TOP:
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move_x = inv_rect.x - self._width
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move_y = (inv_rect.y + inv_rect.height) - palette_rect.height
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elif alignment == ALIGNMENT_RIGHT_BOTTOM:
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move_x = inv_rect.x + inv_rect.width
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move_y = inv_rect.y
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elif alignment == ALIGNMENT_RIGHT_TOP:
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move_x = inv_rect.x + inv_rect.width
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move_y = (inv_rect.y + inv_rect.height) - palette_rect.height
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elif alignment == ALIGNMENT_TOP_LEFT:
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move_x = inv_rect.x
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move_y = inv_rect.y - palette_rect.height
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elif alignment == ALIGNMENT_TOP_RIGHT:
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move_x = (inv_rect.x + inv_rect.width) - self._width
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move_y = inv_rect.y - palette_rect.height
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return move_x, move_y
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def _show(self):
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x, y = self._get_position()
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self._menu.popup(x, y)
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def _hide(self):
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self._menu.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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def popdown(self):
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self._popup_anim.stop()
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self._popdown_anim.start()
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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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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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label = gtk.AccelLabel(label)
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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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label.set_alignment(0.0, 0.5)
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self.add(label)
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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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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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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._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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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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