807 lines
25 KiB
Python
807 lines
25 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 style
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from sugar import _sugarext
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# Helper function to find the gap position and size of widget a
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def _calculate_gap(a, b):
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# Test for each side if the palette and invoker are
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# adjacent to each other.
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gap = True
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if a.y + a.height == b.y:
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gap_side = gtk.POS_BOTTOM
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elif a.x + a.width == b.x:
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gap_side = gtk.POS_RIGHT
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elif a.x == b.x + b.width:
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gap_side = gtk.POS_LEFT
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elif a.y == b.y + b.height:
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gap_side = gtk.POS_TOP
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else:
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gap = False
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if gap:
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if gap_side == gtk.POS_BOTTOM or gap_side == gtk.POS_TOP:
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gap_start = min(a.width, max(0, b.x - a.x))
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gap_size = max(0, min(a.width,
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(b.x + b.width) - a.x) - gap_start)
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elif gap_side == gtk.POS_RIGHT or gap_side == gtk.POS_LEFT:
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gap_start = min(a.height, max(0, b.y - a.y))
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gap_size = max(0, min(a.height,
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(b.y + b.height) - a.y) - gap_start)
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if gap and gap_size > 0:
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return (gap_side, gap_start, gap_size)
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else:
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return False
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class MouseSpeedDetector(gobject.GObject):
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__gsignals__ = {
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'motion-slow': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE, ([])),
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'motion-fast': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE, ([])),
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}
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_MOTION_SLOW = 1
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_MOTION_FAST = 2
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def __init__(self, parent, delay, thresh):
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"""Create MouseSpeedDetector object,
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delay in msec
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threshold in pixels (per tick of 'delay' msec)"""
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gobject.GObject.__init__(self)
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self._threshold = thresh
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self._parent = parent
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self._delay = delay
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self._state = None
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self._timeout_hid = None
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def start(self):
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self._state = None
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self._mouse_pos = self._get_mouse_position()
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self._timeout_hid = gobject.timeout_add(self._delay, self._timer_cb)
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def stop(self):
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if self._timeout_hid is not None:
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gobject.source_remove(self._timeout_hid)
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self._state = None
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def _get_mouse_position(self):
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display = gtk.gdk.display_get_default()
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screen, x, y, mask = display.get_pointer()
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return (x, y)
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def _detect_motion(self):
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oldx, oldy = self._mouse_pos
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(x, y) = self._get_mouse_position()
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self._mouse_pos = (x, y)
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dist2 = (oldx - x)**2 + (oldy - y)**2
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if dist2 > self._threshold**2:
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return True
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else:
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return False
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def _timer_cb(self):
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motion = self._detect_motion()
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if motion and self._state != self._MOTION_FAST:
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self.emit('motion-fast')
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self._state = self._MOTION_FAST
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elif not motion and self._state != self._MOTION_SLOW:
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self.emit('motion-slow')
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self._state = self._MOTION_SLOW
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return True
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class Palette(gtk.Window):
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PRIMARY = 0
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SECONDARY = 1
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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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}
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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, menu_after_content=False):
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gtk.Window.__init__(self)
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self.set_decorated(False)
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self.set_resizable(False)
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# Just assume xthickness and ythickness are the same
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self.set_border_width(self.style.xthickness)
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self.connect('realize', self._realize_cb)
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self.palette_state = self.PRIMARY
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self._alignment = None
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self._old_alloc = None
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self._full_request = [0, 0]
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self._cursor_x = 0
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self._cursor_y = 0
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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._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(1.0, 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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vbox = gtk.VBox()
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self._label = gtk.Label()
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self._label.set_size_request(-1, style.zoom(style.GRID_CELL_SIZE)
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- 2*self.get_border_width())
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self._label.set_alignment(0, 0.5)
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self._label.set_padding(style.DEFAULT_SPACING, 0)
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vbox.pack_start(self._label, False)
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self._secondary_box = gtk.VBox()
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vbox.pack_start(self._secondary_box)
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self._separator = gtk.HSeparator()
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self._secondary_box.pack_start(self._separator)
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self._menu_content_separator = gtk.HSeparator()
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if menu_after_content:
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self._add_content()
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self._secondary_box.pack_start(self._menu_content_separator)
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self._add_menu()
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else:
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self._add_menu()
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self._secondary_box.pack_start(self._menu_content_separator)
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self._add_content()
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self.action_bar = PaletteActionBar()
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self._secondary_box.pack_start(self.action_bar)
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self.action_bar.show()
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self.add(vbox)
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vbox.show()
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# The menu is not shown here until an item is added
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self.menu = _Menu(self)
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self.connect('enter-notify-event',
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self._enter_notify_event_cb)
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self.connect('leave-notify-event',
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self._leave_notify_event_cb)
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self.set_primary_text(label, accel_path)
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self.set_group_id('default')
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self._mouse_detector = MouseSpeedDetector(self, 200, 5)
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self._mouse_detector.connect('motion-slow', self._mouse_slow_cb)
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def _add_menu(self):
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self._menu_box = gtk.VBox()
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self._secondary_box.pack_start(self._menu_box)
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self._menu_box.show()
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def _add_content(self):
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# The content is not shown until a widget is added
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self._content = gtk.VBox()
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self._content.set_border_width(style.DEFAULT_SPACING)
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self._secondary_box.pack_start(self._content)
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def do_style_set(self, previous_style):
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# Prevent a warning from pygtk
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if previous_style is not None:
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gtk.Window.do_style_set(self, previous_style)
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self.set_border_width(self.style.xthickness)
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def is_up(self):
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return self._up
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def get_rect(self):
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win_x, win_y = self.window.get_origin()
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rectangle = self.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 set_primary_text(self, label, accel_path=None):
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if label is not None:
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self._label.set_markup("<b>"+label+"</b>")
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self._label.show()
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def set_content(self, widget):
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if len(self._content.get_children()) > 0:
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self._content.remove(self._content.get_children()[0])
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if widget is not None:
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self._content.add(widget)
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self._content.show()
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else:
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self._content.hide()
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self._update_accept_focus()
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self._update_separators()
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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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self._group_id = 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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if self._invoker is not None:
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self._invoker.disconnect(self._enter_invoker_hid)
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self._invoker.disconnect(self._leave_invoker_hid)
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self._invoker = value
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if value is not None:
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self._enter_invoker_hid = self._invoker.connect(
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'mouse-enter', self._invoker_mouse_enter_cb)
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self._leave_invoker_hid = self._invoker.connect(
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'mouse-leave', self._invoker_mouse_leave_cb)
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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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else:
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raise AssertionError
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def do_size_request(self, requisition):
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gtk.Window.do_size_request(self, requisition)
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requisition.width = max(requisition.width, self._full_request[0])
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# Minimum width
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requisition.width = max(requisition.width,
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style.zoom(style.GRID_CELL_SIZE*2))
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def do_size_allocate(self, allocation):
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gtk.Window.do_size_allocate(self, allocation)
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if self._old_alloc is None or \
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self._old_alloc.x != allocation.x or \
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self._old_alloc.y != allocation.y or \
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self._old_alloc.width != allocation.width or \
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self._old_alloc.height != allocation.height:
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self.queue_draw()
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# We need to store old allocation because when size_allocate
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# is called widget.allocation is already updated.
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# gtk.Window resizing is different from normal containers:
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# the X window is resized, widget.allocation is updated from
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# the configure request handler and finally size_allocate is called.
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self._old_alloc = allocation
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def do_expose_event(self, event):
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# We want to draw a border with a beautiful gap
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if self._invoker is not None and self._invoker.has_rectangle_gap():
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invoker = self._invoker.get_rect()
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palette = self.get_rect()
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gap = _calculate_gap(palette, invoker)
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else:
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gap = False
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if gap:
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self.style.paint_box_gap(event.window, gtk.STATE_PRELIGHT,
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gtk.SHADOW_IN, event.area, self, "palette",
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0, 0,
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self.allocation.width,
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self.allocation.height,
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gap[0], gap[1], gap[2])
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else:
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self.style.paint_box(event.window, gtk.STATE_PRELIGHT,
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gtk.SHADOW_IN, event.area, self, "palette",
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0, 0,
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self.allocation.width,
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self.allocation.height)
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# Fall trough to the container expose handler.
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# (Leaving out the window expose handler which redraws everything)
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gtk.Bin.do_expose_event(self, event)
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def _update_separators(self):
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visible = len(self.menu.get_children()) > 0 or \
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len(self._content.get_children()) > 0
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self._separator.props.visible = visible
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visible = len(self.menu.get_children()) > 0 and \
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len(self._content.get_children()) > 0
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self._menu_content_separator.props.visible = visible
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def _update_accept_focus(self):
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accept_focus = len(self._content.get_children())
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if self.window:
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self.window.set_accept_focus(accept_focus)
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def _realize_cb(self, widget):
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self.window.set_type_hint(gtk.gdk.WINDOW_TYPE_HINT_DIALOG)
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self._update_accept_focus()
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def _update_full_request(self):
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state = self.palette_state
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self._set_state(self.SECONDARY)
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self._full_request = self.size_request()
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self._set_state(state)
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def _update_position(self):
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invoker = self._invoker
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if invoker is None or self._alignment is None:
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logging.error('Cannot update the palette position.')
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return
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rect = self.size_request()
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position = invoker.get_position_for_alignment(self._alignment, rect)
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if position is None:
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position = invoker.get_position(rect)
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self.move(position.x, position.y)
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def _show(self):
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if self._up:
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return
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self._palette_popup_sid = _palette_observer.connect(
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'popup', self._palette_observer_popup_cb)
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if self._invoker is not None:
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self._update_full_request()
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self._alignment = self._invoker.get_alignment(self._full_request)
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self._update_position()
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self.menu.set_active(True)
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self.show()
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self._invoker.notify_popup()
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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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self._secondary_anim.stop()
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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.set_active(False)
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self.hide()
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if self._invoker:
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self._invoker.notify_popdown()
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self._up = False
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self.emit('popdown')
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def popup(self, immediate=False):
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self._popdown_anim.stop()
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if not immediate:
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self._popup_anim.start()
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else:
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self._show()
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self._secondary_anim.start()
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def popdown(self, immediate=False):
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self._popup_anim.stop()
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if not immediate:
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self._popdown_anim.start()
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else:
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self._hide()
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def _set_state(self, state):
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if self.palette_state == state:
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return
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if state == self.PRIMARY:
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self.menu.unembed()
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self._secondary_box.hide()
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elif state == self.SECONDARY:
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self.menu.embed(self._menu_box)
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self._secondary_box.show()
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self.palette_state = state
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def _invoker_mouse_enter_cb(self, invoker):
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self._mouse_detector.start()
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def _mouse_slow_cb(self, widget):
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self._mouse_detector.stop()
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self._palette_do_popup()
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def _palette_do_popup(self):
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immediate = False
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if self.is_up():
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self._popdown_anim.stop()
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return
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if self._group_id:
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group = palettegroup.get_group(self._group_id)
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if group and group.is_up():
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self._set_state(self.PRIMARY)
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immediate = True
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group.popdown()
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self.popup(immediate=immediate)
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def _invoker_mouse_leave_cb(self, invoker):
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if self._mouse_detector is not None:
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self._mouse_detector.stop()
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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_INFERIOR:
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self._popdown_anim.stop()
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self._secondary_anim.start()
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def _leave_notify_event_cb(self, widget, event):
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if event.detail != gtk.gdk.NOTIFY_INFERIOR:
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self.popdown()
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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 PaletteActionBar(gtk.HButtonBox):
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def add_action(label, icon_name=None):
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button = Button(label)
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if icon_name:
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icon = Icon(icon_name)
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button.set_image(icon)
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icon.show()
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self.pack_start(button)
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button.show()
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class _Menu(_sugarext.Menu):
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__gtype_name__ = 'SugarPaletteMenu'
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def __init__(self, palette):
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_sugarext.Menu.__init__(self)
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self._palette = palette
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def do_insert(self, item, position):
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_sugarext.Menu.do_insert(self, item, position)
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self._palette._update_separators()
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self.show()
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def do_expose_event(self, event):
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# Ignore the Menu expose, just do the MenuShell expose to prevent any
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# border from being drawn here. A border is drawn by the palette object
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# around everything.
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gtk.MenuShell.do_expose_event(self, event)
|
|
|
|
def do_grab_notify(self, was_grabbed):
|
|
# Ignore grab_notify as the menu would close otherwise
|
|
pass
|
|
|
|
def do_deactivate(self):
|
|
self._palette._hide()
|
|
|
|
class _PopupAnimation(animator.Animation):
|
|
def __init__(self, palette):
|
|
animator.Animation.__init__(self, 0.0, 1.0)
|
|
self._palette = palette
|
|
|
|
def next_frame(self, current):
|
|
if current == 1.0:
|
|
self._palette._set_state(Palette.PRIMARY)
|
|
self._palette._show()
|
|
|
|
class _SecondaryAnimation(animator.Animation):
|
|
def __init__(self, palette):
|
|
animator.Animation.__init__(self, 0.0, 1.0)
|
|
self._palette = palette
|
|
|
|
def next_frame(self, current):
|
|
if current == 1.0:
|
|
self._palette._set_state(Palette.SECONDARY)
|
|
self._palette._update_position()
|
|
|
|
class _PopdownAnimation(animator.Animation):
|
|
def __init__(self, palette):
|
|
animator.Animation.__init__(self, 0.0, 1.0)
|
|
self._palette = palette
|
|
|
|
def next_frame(self, current):
|
|
if current == 1.0:
|
|
self._palette._hide()
|
|
|
|
class Invoker(gobject.GObject):
|
|
__gtype_name__ = 'SugarPaletteInvoker'
|
|
|
|
__gsignals__ = {
|
|
'mouse-enter': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE, ([])),
|
|
'mouse-leave': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE, ([])),
|
|
'focus-out': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE, ([]))
|
|
}
|
|
|
|
ANCHORED = 0
|
|
AT_CURSOR = 1
|
|
|
|
BOTTOM = [(0.0, 0.0, 0.0, 1.0),
|
|
(-1.0, 0.0, 1.0, 1.0)]
|
|
RIGHT = [(0.0, 0.0, 1.0, 0.0),
|
|
(0.0, -1.0, 1.0, 1.0)]
|
|
TOP = [(0.0, -1.0, 0.0, 0.0),
|
|
(-1.0, -1.0, 1.0, 0.0)]
|
|
LEFT = [(-1.0, 0.0, 0.0, 0.0),
|
|
(-1.0, -1.0, 0.0, 1.0)]
|
|
|
|
def __init__(self):
|
|
gobject.GObject.__init__(self)
|
|
|
|
self._screen_area = gtk.gdk.Rectangle(0, 0, gtk.gdk.screen_width(),
|
|
gtk.gdk.screen_height())
|
|
self._position_hint = self.ANCHORED
|
|
self._cursor_x = -1
|
|
self._cursor_y = -1
|
|
|
|
def _get_position_for_alignment(self, alignment, palette_dim):
|
|
palette_halign = alignment[0]
|
|
palette_valign = alignment[1]
|
|
invoker_halign = alignment[2]
|
|
invoker_valign = alignment[3]
|
|
|
|
if self._cursor_x == -1 or self._cursor_y == -1:
|
|
display = gtk.gdk.display_get_default()
|
|
screen, x, y, mask = display.get_pointer()
|
|
self._cursor_x = x
|
|
self._cursor_y = y
|
|
|
|
if self._position_hint is self.ANCHORED:
|
|
rect = self.get_rect()
|
|
else:
|
|
dist = style.PALETTE_CURSOR_DISTANCE
|
|
rect = gtk.gdk.Rectangle(self._cursor_x - dist,
|
|
self._cursor_y - dist,
|
|
dist * 2, dist * 2)
|
|
|
|
palette_width, palette_height = palette_dim
|
|
|
|
x = rect.x + rect.width * invoker_halign + \
|
|
palette_width * palette_halign
|
|
|
|
y = rect.y + rect.height * invoker_valign + \
|
|
palette_height * palette_valign
|
|
|
|
return gtk.gdk.Rectangle(int(x), int(y),
|
|
palette_width, palette_height)
|
|
|
|
def _in_screen(self, rect):
|
|
return rect.x >= self._screen_area.x and \
|
|
rect.y >= self._screen_area.y and \
|
|
rect.x + rect.width <= self._screen_area.width and \
|
|
rect.y + rect.height <= self._screen_area.height
|
|
|
|
def _get_alignments(self):
|
|
if self._position_hint is self.AT_CURSOR:
|
|
return [(0.0, 0.0, 1.0, 1.0),
|
|
(0.0, -1.0, 1.0, 0.0),
|
|
(-1.0, -1.0, 0.0, 0.0),
|
|
(-1.0, 0.0, 0.0, 1.0)]
|
|
else:
|
|
return self.BOTTOM + self.RIGHT + self.TOP + self.LEFT
|
|
|
|
def get_position_for_alignment(self, alignment, palette_dim):
|
|
rect = self._get_position_for_alignment(alignment, palette_dim)
|
|
if self._in_screen(rect):
|
|
return rect
|
|
else:
|
|
return None
|
|
|
|
def get_position(self, palette_dim):
|
|
for alignment in self._get_alignments():
|
|
rect = self._get_position_for_alignment(alignment, palette_dim)
|
|
if self._in_screen(rect):
|
|
break
|
|
|
|
return rect
|
|
|
|
def get_alignment(self, palette_dim):
|
|
for alignment in self._get_alignments():
|
|
rect = self._get_position_for_alignment(alignment, palette_dim)
|
|
if self._in_screen(rect):
|
|
break
|
|
|
|
return alignment
|
|
|
|
def has_rectangle_gap(self):
|
|
return False
|
|
|
|
def draw_rectangle(self, event, palette):
|
|
pass
|
|
|
|
def notify_popup(self):
|
|
pass
|
|
|
|
def notify_popdown(self):
|
|
self._cursor_x = -1
|
|
self._cursor_y = -1
|
|
|
|
class WidgetInvoker(Invoker):
|
|
def __init__(self, widget):
|
|
Invoker.__init__(self)
|
|
self._widget = widget
|
|
|
|
widget.connect('enter-notify-event', self._enter_notify_event_cb)
|
|
widget.connect('leave-notify-event', self._leave_notify_event_cb)
|
|
|
|
def get_rect(self):
|
|
allocation = self._widget.get_allocation()
|
|
if self._widget.window is not None:
|
|
x, y = self._widget.window.get_origin()
|
|
else:
|
|
logging.warning(
|
|
"Trying to position palette with invoker that's not realized.")
|
|
x = 0
|
|
y = 0
|
|
|
|
if self._widget.flags() & gtk.NO_WINDOW:
|
|
x += allocation.x
|
|
y += allocation.y
|
|
|
|
width = allocation.width
|
|
height = allocation.height
|
|
|
|
return gtk.gdk.Rectangle(x, y, width, height)
|
|
|
|
def has_rectangle_gap(self):
|
|
return True
|
|
|
|
def draw_rectangle(self, event, palette):
|
|
style = self._widget.style
|
|
gap = _calculate_gap(self.get_rect(), palette.get_rect())
|
|
if gap:
|
|
style.paint_box_gap(event.window, gtk.STATE_PRELIGHT,
|
|
gtk.SHADOW_IN, event.area, self._widget,
|
|
"palette-invoker",
|
|
self._widget.allocation.x,
|
|
self._widget.allocation.y,
|
|
self._widget.allocation.width,
|
|
self._widget.allocation.height,
|
|
gap[0], gap[1], gap[2])
|
|
else:
|
|
style.paint_box(event.window, gtk.STATE_PRELIGHT,
|
|
gtk.SHADOW_IN, event.area, self._widget,
|
|
"palette-invoker",
|
|
self._widget.allocation.x,
|
|
self._widget.allocation.y,
|
|
self._widget.allocation.width,
|
|
self._widget.allocation.height)
|
|
|
|
def _enter_notify_event_cb(self, widget, event):
|
|
self.emit('mouse-enter')
|
|
|
|
def _leave_notify_event_cb(self, widget, event):
|
|
self.emit('mouse-leave')
|
|
|
|
def get_toplevel(self):
|
|
return self._widget.get_toplevel()
|
|
|
|
def notify_popup(self):
|
|
Invoker.notify_popup(self)
|
|
self._widget.queue_draw()
|
|
|
|
def notify_popdown(self):
|
|
Invoker.notify_popdown(self)
|
|
self._widget.queue_draw()
|
|
|
|
class CanvasInvoker(Invoker):
|
|
def __init__(self, item):
|
|
Invoker.__init__(self)
|
|
|
|
self._item = item
|
|
self._position_hint = self.AT_CURSOR
|
|
|
|
item.connect('motion-notify-event',
|
|
self._motion_notify_event_cb)
|
|
|
|
def get_default_position(self):
|
|
return self.AT_CURSOR
|
|
|
|
def get_rect(self):
|
|
context = self._item.get_context()
|
|
if context:
|
|
x, y = context.translate_to_screen(self._item)
|
|
width, height = self._item.get_allocation()
|
|
return gtk.gdk.Rectangle(x, y, width, height)
|
|
else:
|
|
return gtk.gdk.Rectangle()
|
|
|
|
def _motion_notify_event_cb(self, button, event):
|
|
if event.detail == hippo.MOTION_DETAIL_ENTER:
|
|
context = self._item.get_context()
|
|
self.emit('mouse-enter')
|
|
elif event.detail == hippo.MOTION_DETAIL_LEAVE:
|
|
self.emit('mouse-leave')
|
|
|
|
return False
|
|
|
|
def get_toplevel(self):
|
|
return hippo.get_canvas_for_item(self._item).get_toplevel()
|
|
|
|
class ToolInvoker(WidgetInvoker):
|
|
def __init__(self, widget):
|
|
WidgetInvoker.__init__(self, widget.child)
|
|
|
|
def _get_alignments(self):
|
|
parent = self._widget.get_parent()
|
|
if parent is None:
|
|
return WidgetInvoker.get_alignments()
|
|
|
|
if parent.get_orientation() is gtk.ORIENTATION_HORIZONTAL:
|
|
return self.BOTTOM + self.TOP
|
|
else:
|
|
return self.LEFT + self.RIGHT
|
|
|
|
class _PaletteObserver(gobject.GObject):
|
|
__gtype_name__ = 'SugarPaletteObserver'
|
|
|
|
__gsignals__ = {
|
|
'popup': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE, ([object]))
|
|
}
|
|
|
|
def __init__(self):
|
|
gobject.GObject.__init__(self)
|
|
|
|
_palette_observer = _PaletteObserver()
|