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sugar-toolkit-gtk3/sugar/graphics/palette.py
Eben Eliason f2002153df Added default to label arg in palette constructor 
This leaves the API backward compatible but prevents the
need for new code to pass any unused arguments to the
constructor, instead depending on the property API.
2008-04-03 01:23:00 -04:00

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# Copyright (C) 2007, Eduardo Silva <edsiper@gmail.com>
# Copyright (C) 2008, One Laptop Per Child
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.
import logging
import gtk
import gobject
import time
import hippo
import pango
from sugar.graphics import palettegroup
from sugar.graphics import animator
from sugar.graphics import style
from sugar import _sugarext
# Helper function to find the gap position and size of widget a
def _calculate_gap(a, b):
# Test for each side if the palette and invoker are
# adjacent to each other.
gap = True
if a.y + a.height == b.y:
gap_side = gtk.POS_BOTTOM
elif a.x + a.width == b.x:
gap_side = gtk.POS_RIGHT
elif a.x == b.x + b.width:
gap_side = gtk.POS_LEFT
elif a.y == b.y + b.height:
gap_side = gtk.POS_TOP
else:
gap = False
if gap:
if gap_side == gtk.POS_BOTTOM or gap_side == gtk.POS_TOP:
gap_start = min(a.width, max(0, b.x - a.x))
gap_size = max(0, min(a.width,
(b.x + b.width) - a.x) - gap_start)
elif gap_side == gtk.POS_RIGHT or gap_side == gtk.POS_LEFT:
gap_start = min(a.height, max(0, b.y - a.y))
gap_size = max(0, min(a.height,
(b.y + b.height) - a.y) - gap_start)
if gap and gap_size > 0:
return (gap_side, gap_start, gap_size)
else:
return False
class MouseSpeedDetector(gobject.GObject):
__gsignals__ = {
'motion-slow': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE, ([])),
'motion-fast': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE, ([])),
}
_MOTION_SLOW = 1
_MOTION_FAST = 2
def __init__(self, parent, delay, thresh):
"""Create MouseSpeedDetector object,
delay in msec
threshold in pixels (per tick of 'delay' msec)"""
gobject.GObject.__init__(self)
self._threshold = thresh
self._parent = parent
self._delay = delay
self._state = None
self._timeout_hid = None
def start(self):
self._state = None
self._mouse_pos = self._get_mouse_position()
self._timeout_hid = gobject.timeout_add(self._delay, self._timer_cb)
def stop(self):
if self._timeout_hid is not None:
gobject.source_remove(self._timeout_hid)
self._state = None
def _get_mouse_position(self):
display = gtk.gdk.display_get_default()
screen, x, y, mask = display.get_pointer()
return (x, y)
def _detect_motion(self):
oldx, oldy = self._mouse_pos
(x, y) = self._get_mouse_position()
self._mouse_pos = (x, y)
dist2 = (oldx - x)**2 + (oldy - y)**2
if dist2 > self._threshold**2:
return True
else:
return False
def _timer_cb(self):
motion = self._detect_motion()
if motion and self._state != self._MOTION_FAST:
self.emit('motion-fast')
self._state = self._MOTION_FAST
elif not motion and self._state != self._MOTION_SLOW:
self.emit('motion-slow')
self._state = self._MOTION_SLOW
return True
class Palette(gtk.Window):
PRIMARY = 0
SECONDARY = 1
__gtype_name__ = 'SugarPalette'
__gproperties__ = {
'invoker' : (object, None, None,
gobject.PARAM_READWRITE),
'primary-text' : (str, None, None, None,
gobject.PARAM_READWRITE),
'secondary-text' : (str, None, None, None,
gobject.PARAM_READWRITE),
'icon' : (object, None, None,
gobject.PARAM_READWRITE),
'icon-visible' : (bool, None, None, True,
gobject.PARAM_READWRITE),
'group-id' : (str, None, None, None,
gobject.PARAM_READWRITE)
}
__gsignals__ = {
'popup' : (gobject.SIGNAL_RUN_FIRST,
gobject.TYPE_NONE, ([])),
'popdown' : (gobject.SIGNAL_RUN_FIRST,
gobject.TYPE_NONE, ([]))
}
# DEPRECATED: label is passed with the primary-text property, accel_path
# is set via the invoker property, and menu_after_content is not used
def __init__(self, label=None, accel_path=None, menu_after_content=False,
text_maxlen=0, **kwargs):
self.palette_state = self.PRIMARY
self._primary_text = None
self._secondary_text = None
self._icon = None
self._icon_visible = True
self._group_id = None
palette_box = gtk.VBox()
primary_box = gtk.HBox()
palette_box.pack_start(primary_box, expand=False)
primary_box.show()
self._icon_box = gtk.HBox()
self._icon_box.set_size_request(style.zoom(style.GRID_CELL_SIZE), -1)
primary_box.pack_start(self._icon_box, expand=False)
labels_box = gtk.VBox()
self._label_alignment = gtk.Alignment(xalign=0, yalign=0.5,
xscale=1, yscale=0.33)
self._label_alignment.set_padding(0, 0, style.DEFAULT_SPACING,
style.DEFAULT_SPACING)
self._label_alignment.add(labels_box)
self._label_alignment.show()
primary_box.pack_start(self._label_alignment, expand=True)
labels_box.show()
self._label = gtk.AccelLabel('')
self._label.set_alignment(0, 0.5)
if text_maxlen > 0:
self._label.set_max_width_chars(text_maxlen)
self._label.set_ellipsize(pango.ELLIPSIZE_MIDDLE)
labels_box.pack_start(self._label, expand=True)
self._secondary_label = gtk.Label()
self._secondary_label.set_alignment(0, 0.5)
if text_maxlen > 0:
self._secondary_label.set_max_width_chars(text_maxlen)
self._secondary_label.set_ellipsize(pango.ELLIPSIZE_MIDDLE)
labels_box.pack_start(self._secondary_label, expand=True)
self._secondary_box = gtk.VBox()
palette_box.pack_start(self._secondary_box)
self._separator = gtk.HSeparator()
self._secondary_box.pack_start(self._separator)
self._menu_content_separator = gtk.HSeparator()
self._popup_anim = animator.Animator(0.3, 10)
self._popup_anim.add(_PopupAnimation(self))
self._secondary_anim = animator.Animator(1.0, 10)
self._secondary_anim.add(_SecondaryAnimation(self))
self._popdown_anim = animator.Animator(0.6, 10)
self._popdown_anim.add(_PopdownAnimation(self))
# we init after initializing all of our containers
gobject.GObject.__init__(self, **kwargs)
self.set_decorated(False)
self.set_resizable(False)
# Just assume xthickness and ythickness are the same
self.set_border_width(self.style.xthickness)
primary_box.set_size_request(-1, style.zoom(style.GRID_CELL_SIZE)
- 2 * self.get_border_width())
self.connect('realize', self._realize_cb)
self.connect('destroy', self.__destroy_cb)
self.connect('map-event', self.__map_event_cb)
self._alignment = None
self._old_alloc = None
self._full_request = [0, 0]
self._cursor_x = 0
self._cursor_y = 0
self._invoker = None
self._group_id = None
self._up = False
self._palette_popup_sid = None
# we set these for backward compatibility
if label is not None:
self.props.primary_text = label
self._add_menu()
self._secondary_box.pack_start(self._menu_content_separator)
self._add_content()
self.action_bar = PaletteActionBar()
self._secondary_box.pack_start(self.action_bar)
self.action_bar.show()
self.add(palette_box)
palette_box.show()
# The menu is not shown here until an item is added
self.menu = _Menu(self)
self.connect('enter-notify-event',
self._enter_notify_event_cb)
self.connect('leave-notify-event',
self._leave_notify_event_cb)
self._mouse_detector = MouseSpeedDetector(self, 200, 5)
self._mouse_detector.connect('motion-slow', self._mouse_slow_cb)
def __destroy_cb(self, palette):
self.set_group_id(None)
if self._palette_popup_sid is not None:
_palette_observer.disconnect(self._palette_popup_sid)
def _add_menu(self):
self._menu_box = gtk.VBox()
self._secondary_box.pack_start(self._menu_box)
self._menu_box.show()
def _add_content(self):
# The content is not shown until a widget is added
self._content = gtk.VBox()
self._content.set_border_width(style.DEFAULT_SPACING)
self._secondary_box.pack_start(self._content)
def do_style_set(self, previous_style):
# Prevent a warning from pygtk
if previous_style is not None:
gtk.Window.do_style_set(self, previous_style)
self.set_border_width(self.style.xthickness)
def is_up(self):
return self._up
def get_rect(self):
win_x, win_y = self.window.get_origin()
rectangle = self.get_allocation()
x = win_x + rectangle.x
y = win_y + rectangle.y
width = rectangle.width
height = rectangle.height
return gtk.gdk.Rectangle(x, y, width, height)
def _set_invoker(self, invoker):
if self._invoker is not None:
self._invoker.disconnect(self._enter_invoker_hid)
self._invoker.disconnect(self._leave_invoker_hid)
self._invoker = invoker
if invoker is not None:
self._enter_invoker_hid = self._invoker.connect(
'mouse-enter', self._invoker_mouse_enter_cb)
self._leave_invoker_hid = self._invoker.connect(
'mouse-leave', self._invoker_mouse_leave_cb)
if hasattr(invoker.props, 'widget'):
self._label.props.accel_widget = invoker.props.widget
def set_primary_text(self, label, accel_path=None):
self._primary_text = label
if label is not None:
self._label.set_markup('<b>%s</b>' % label)
self._label.show()
def _set_secondary_text(self, label):
self._secondary_text = label
if label is None:
self._secondary_label.hide()
else:
self._secondary_label.set_text(label)
self._secondary_label.show()
def _show_icon(self):
self._label_alignment.set_padding(0, 0, 0, style.DEFAULT_SPACING)
self._icon_box.show()
def _hide_icon(self):
self._icon_box.hide()
self._label_alignment.set_padding(0, 0, style.DEFAULT_SPACING,
style.DEFAULT_SPACING)
def _set_icon(self, icon):
if icon is None:
self._icon = None
self._hide_icon()
else:
if self._icon:
self._icon_box.remove(self._icon)
self._icon = icon
self._icon.props.icon_size = gtk.ICON_SIZE_LARGE_TOOLBAR
self._icon_box.pack_start(self._icon)
self._icon.show()
self._show_icon()
def _set_icon_visible(self, visible):
self._icon_visible = visible
if visible and self._icon is not None:
self._show_icon()
else:
self._hide_icon()
def set_content(self, widget):
if len(self._content.get_children()) > 0:
self._content.remove(self._content.get_children()[0])
if widget is not None:
self._content.add(widget)
self._content.show()
else:
self._content.hide()
self._update_accept_focus()
self._update_separators()
def set_group_id(self, group_id):
if self._group_id:
group = palettegroup.get_group(self._group_id)
group.remove(self)
if group_id:
self._group_id = group_id
group = palettegroup.get_group(group_id)
group.add(self)
def do_set_property(self, pspec, value):
if pspec.name == 'invoker':
self._set_invoker(value)
elif pspec.name == 'primary-text':
self.set_primary_text(value, None)
elif pspec.name == 'secondary-text':
self._set_secondary_text(value)
elif pspec.name == 'icon':
self._set_icon(value)
elif pspec.name == 'icon-visible':
self._set_icon_visible(value)
elif pspec.name == 'group-id':
self.set_group_id(value)
else:
raise AssertionError
def do_get_property(self, pspec):
if pspec.name == 'invoker':
return self._invoker
elif pspec.name == 'primary-text':
return self._primary_text
elif pspec.name == 'secondary-text':
return self._secondary_text
elif pspec.name == 'icon':
return self._icon
elif pspec.name == 'icon-visible':
return self._icon_visible
elif pspec.name == 'group-id':
return self._group_id
else:
raise AssertionError
def do_size_request(self, requisition):
gtk.Window.do_size_request(self, requisition)
# gtk.AccelLabel request doesn't include the accelerator.
label_width = self._label_alignment.size_request()[0] + \
self._label.get_accel_width() + \
2 * self.get_border_width()
requisition.width = max(requisition.width,
style.zoom(style.GRID_CELL_SIZE * 2),
label_width,
self._full_request[0])
def do_size_allocate(self, allocation):
gtk.Window.do_size_allocate(self, allocation)
if self._old_alloc is None or \
self._old_alloc.x != allocation.x or \
self._old_alloc.y != allocation.y or \
self._old_alloc.width != allocation.width or \
self._old_alloc.height != allocation.height:
self.queue_draw()
# We need to store old allocation because when size_allocate
# is called widget.allocation is already updated.
# gtk.Window resizing is different from normal containers:
# the X window is resized, widget.allocation is updated from
# the configure request handler and finally size_allocate is called.
self._old_alloc = allocation
def do_expose_event(self, event):
# We want to draw a border with a beautiful gap
if self._invoker is not None and self._invoker.has_rectangle_gap():
invoker = self._invoker.get_rect()
palette = self.get_rect()
gap = _calculate_gap(palette, invoker)
else:
gap = False
if gap:
self.style.paint_box_gap(event.window, gtk.STATE_PRELIGHT,
gtk.SHADOW_IN, event.area, self, "palette",
0, 0,
self.allocation.width,
self.allocation.height,
gap[0], gap[1], gap[2])
else:
self.style.paint_box(event.window, gtk.STATE_PRELIGHT,
gtk.SHADOW_IN, event.area, self, "palette",
0, 0,
self.allocation.width,
self.allocation.height)
# Fall trough to the container expose handler.
# (Leaving out the window expose handler which redraws everything)
gtk.Bin.do_expose_event(self, event)
def _update_separators(self):
visible = len(self.menu.get_children()) > 0 or \
len(self._content.get_children()) > 0
self._separator.props.visible = visible
visible = len(self.menu.get_children()) > 0 and \
len(self._content.get_children()) > 0
self._menu_content_separator.props.visible = visible
def _update_accept_focus(self):
accept_focus = len(self._content.get_children())
if self.window:
self.window.set_accept_focus(accept_focus)
def _realize_cb(self, widget):
self.window.set_type_hint(gtk.gdk.WINDOW_TYPE_HINT_DIALOG)
self._update_accept_focus()
def _update_full_request(self):
state = self.palette_state
self._set_state(self.SECONDARY)
self._full_request = self.size_request()
self._set_state(state)
def _update_position(self):
invoker = self._invoker
if invoker is None or self._alignment is None:
logging.error('Cannot update the palette position.')
return
rect = self.size_request()
position = invoker.get_position_for_alignment(self._alignment, rect)
if position is None:
position = invoker.get_position(rect)
self.move(position.x, position.y)
def _show(self):
if self._up:
return
self._palette_popup_sid = _palette_observer.connect(
'popup', self._palette_observer_popup_cb)
if self._invoker is not None:
self._update_full_request()
self._alignment = self._invoker.get_alignment(self._full_request)
self._update_position()
self.set_transient_for(self._invoker.get_toplevel())
self.menu.set_active(True)
self.show()
def _hide(self):
self._secondary_anim.stop()
if not self._palette_popup_sid is None:
_palette_observer.disconnect(self._palette_popup_sid)
self._palette_popup_sid = None
self.menu.set_active(False)
self.hide()
if self._invoker:
self._invoker.notify_popdown()
self._up = False
self.emit('popdown')
def popup(self, immediate=False):
self._popdown_anim.stop()
if not immediate:
self._popup_anim.start()
else:
self._show()
self._secondary_anim.start()
def popdown(self, immediate=False):
self._popup_anim.stop()
self._mouse_detector.stop()
if not immediate:
self._popdown_anim.start()
else:
self._hide()
def _set_state(self, state):
if self.palette_state == state:
return
if state == self.PRIMARY:
self.menu.unembed()
self._secondary_box.hide()
elif state == self.SECONDARY:
self.menu.embed(self._menu_box)
self._secondary_box.show()
self.palette_state = state
def _invoker_mouse_enter_cb(self, invoker):
self._mouse_detector.start()
def _mouse_slow_cb(self, widget):
self._mouse_detector.stop()
self._palette_do_popup()
def _palette_do_popup(self):
immediate = False
if self.is_up():
self._popdown_anim.stop()
return
if self._group_id:
group = palettegroup.get_group(self._group_id)
if group and group.is_up():
self._set_state(self.PRIMARY)
immediate = True
group.popdown()
self.popup(immediate=immediate)
def _invoker_mouse_leave_cb(self, invoker):
self._mouse_detector.stop()
self.popdown()
def _enter_notify_event_cb(self, widget, event):
if event.detail != gtk.gdk.NOTIFY_INFERIOR:
self._popdown_anim.stop()
self._secondary_anim.start()
def _leave_notify_event_cb(self, widget, event):
if event.detail != gtk.gdk.NOTIFY_INFERIOR:
self.popdown()
def _palette_observer_popup_cb(self, observer, palette):
if self != palette:
self._hide()
def __map_event_cb(self, widget, event):
self._invoker.notify_popup()
self._up = True
_palette_observer.emit('popup', self)
self.emit('popup')
class PaletteActionBar(gtk.HButtonBox):
def add_action(label, icon_name=None):
button = Button(label)
if icon_name:
icon = Icon(icon_name)
button.set_image(icon)
icon.show()
self.pack_start(button)
button.show()
class _Menu(_sugarext.Menu):
__gtype_name__ = 'SugarPaletteMenu'
def __init__(self, palette):
_sugarext.Menu.__init__(self)
self._palette = palette
def do_insert(self, item, position):
_sugarext.Menu.do_insert(self, item, position)
self._palette._update_separators()
self.show()
def do_expose_event(self, event):
# Ignore the Menu expose, just do the MenuShell expose to prevent any
# border from being drawn here. A border is drawn by the palette object
# around everything.
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_area_in_screen(self, rect):
"""Return area of rectangle visible in the screen"""
x1 = max(rect.x, self._screen_area.x)
y1 = max(rect.y, self._screen_area.y)
x2 = min(rect.x + rect.width,
self._screen_area.x + self._screen_area.width)
y2 = min(rect.y + rect.height,
self._screen_area.y + self._screen_area.height)
return (x2 - x1) * (y2 - y1)
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):
alignment = self.get_alignment(palette_dim)
return self._get_position_for_alignment(alignment, palette_dim)
def get_alignment(self, palette_dim):
best_alignment = None
best_area = -1
for alignment in self._get_alignments():
pos = self._get_position_for_alignment(alignment, palette_dim)
if self._in_screen(pos):
return alignment
area = self._get_area_in_screen(pos)
if area > best_area:
best_alignment = alignment
best_area = area
# Palette horiz/vert alignment
ph = best_alignment[0]
pv = best_alignment[1]
# Invoker horiz/vert alignment
ih = best_alignment[2]
iv = best_alignment[3]
rect = self.get_rect()
screen_area = self._screen_area
if best_alignment in self.LEFT or best_alignment in self.RIGHT:
dtop = rect.y - screen_area.y
dbottom = screen_area.y + screen_area.height - rect.y - rect.width
iv = 0
# Set palette_valign to align to screen on the top
if dtop > dbottom:
pv = -float(dtop) / palette_dim[1]
# Set palette_valign to align to screen on the bottom
else:
pv = -float(palette_dim[1] - dbottom - rect.height) \
/ palette_dim[1]
else:
dleft = rect.x - screen_area.x
dright = screen_area.x + screen_area.width - rect.x - rect.width
ih = 0
# Set palette_halign to align to screen on left
if dleft > dright:
ph = -float(dleft) / palette_dim[0]
# Set palette_halign to align to screen on right
else:
ph = -float(palette_dim[0] - dright - rect.width) \
/ palette_dim[0]
return (ph, pv, ih, iv)
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()
def _get_widget(self):
return self._widget
widget = gobject.property(type=object, getter=_get_widget, setter=None)
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()
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