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path: root/sugar-toolkit/src/sugar/graphics/palette.py
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diff --git a/sugar-toolkit/src/sugar/graphics/palette.py b/sugar-toolkit/src/sugar/graphics/palette.py
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--- a/sugar-toolkit/src/sugar/graphics/palette.py
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@@ -1,1124 +0,0 @@
-# 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.
-
-"""
-STABLE.
-"""
-
-import logging
-
-import gtk
-import gobject
-import hippo
-import pango
-
-from sugar.graphics import palettegroup
-from sugar.graphics import animator
-from sugar.graphics import style
-from sugar.graphics.icon import Icon
-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
- self._mouse_pos = None
-
- def start(self):
- self.stop()
-
- 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'
-
- __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(.5, 10)
- self._popup_anim.add(_PopupAnimation(self))
-
- self._secondary_anim = animator.Animator(2.0, 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.get_style().xthickness)
-
- accel_group = gtk.AccelGroup()
- self.set_data('sugar-accel-group', accel_group)
- self.add_accel_group(accel_group)
-
- primary_box.set_size_request(-1, style.zoom(style.GRID_CELL_SIZE)
- - 2 * self.get_border_width())
-
-
- self.connect('show', self.__show_cb)
- self.connect('hide', self.__hide_cb)
- self.connect('realize', self.__realize_cb)
- self.connect('destroy', self.__destroy_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._menu_box = None
- self._content = None
- self._invoker_hids = []
-
- self.set_group_id("default")
-
- # 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.menu.connect('item-inserted', self.__menu_item_inserted_cb)
-
- 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 __menu_item_inserted_cb(self, menu):
- self._update_separators()
-
- def __destroy_cb(self, palette):
- self.set_group_id(None)
-
- # Break the reference cycle. It looks like the gc is not able to free
- # it, possibly because gtk.Menu memory handling is very special.
- self.menu = None
-
- 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.get_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):
- for hid in self._invoker_hids[:]:
- self._invoker.disconnect(hid)
- self._invoker_hids.remove(hid)
-
- self._invoker = invoker
- if invoker is not None:
- self._invoker_hids.append(self._invoker.connect(
- 'mouse-enter', self._invoker_mouse_enter_cb))
- self._invoker_hids.append(self._invoker.connect(
- 'mouse-leave', self._invoker_mouse_leave_cb))
- self._invoker_hids.append(self._invoker.connect(
- 'right-click', self._invoker_right_click_cb))
- if hasattr(invoker.props, 'widget'):
- self._update_accel_widget()
- logging.debug(('Setup widget', invoker.props.widget))
- self._invoker_hids.append(self._invoker.connect(
- 'notify::widget', self._invoker_widget_changed_cb))
-
- def get_invoker(self):
- return self._invoker
-
- invoker = gobject.property(type=object,
- getter=get_invoker,
- setter=set_invoker)
-
- def _update_accel_widget(self):
- assert self.props.invoker is not None
- self._label.props.accel_widget = self.props.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 get_primary_text(self):
- return self._primary_text
-
- primary_text = gobject.property(type=str,
- getter=get_primary_text,
- setter=set_primary_text)
-
- 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 get_secondary_text(self):
- return self._secondary_text
-
-
- secondary_text = gobject.property(type=str,
- getter=get_secondary_text,
- setter=set_secondary_text)
- 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 get_icon(self):
- return self._icon
-
- icon = gobject.property(type=object, getter=get_icon, setter=set_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 get_icon_visible(self):
- return self._icon_visilbe
-
- icon_visible = gobject.property(type=bool,
- default=True,
- getter=get_icon_visible,
- setter=set_icon_visible)
-
- 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 get_group_id(self):
- return self._group_id
-
- group_id = gobject.property(type=str,
- getter=get_group_id,
- setter=set_group_id)
-
- 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
-
- allocation = self.get_allocation()
- wstyle = self.get_style()
-
- if gap:
- wstyle.paint_box_gap(event.window, gtk.STATE_PRELIGHT,
- gtk.SHADOW_IN, event.area, self, "palette",
- 0, 0, allocation.width, allocation.height,
- gap[0], gap[1], gap[2])
- else:
- wstyle.paint_box(event.window, gtk.STATE_PRELIGHT,
- gtk.SHADOW_IN, event.area, self, "palette",
- 0, 0, allocation.width, 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):
- if self.palette_state == self.PRIMARY:
- self.menu.embed(self._menu_box)
- self._secondary_box.show()
-
- self._full_request = self.size_request()
-
- if self.palette_state == self.PRIMARY:
- self.menu.unembed()
- self._secondary_box.hide()
-
- 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 popup(self, immediate=False, state=None):
- logging.debug('Palette.popup immediate %r' % immediate)
-
- if state is None:
- state = self.PRIMARY
- self.set_state(state)
-
- 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._popdown_anim.stop()
-
- if not immediate:
- self._popup_anim.start()
- else:
- self.show()
-
- self._secondary_anim.start()
-
- def popdown(self, immediate=False):
- logging.debug('Palette.popdown immediate %r' % immediate)
- 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._update_position()
-
- self.palette_state = state
-
- 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():
- immediate = True
- group.popdown()
-
- self.popup(immediate=immediate)
-
- def _invoker_widget_changed_cb(self, invoker, spec):
- self._update_accel_widget()
-
- def _invoker_mouse_enter_cb(self, invoker):
- self._mouse_detector.start()
-
- def _invoker_mouse_leave_cb(self, invoker):
- self._mouse_detector.stop()
- self.popdown()
-
- def _invoker_right_click_cb(self, invoker):
- self.popup(immediate=True, state=self.SECONDARY)
-
- def __enter_notify_event_cb(self, widget, event):
- if event.detail != gtk.gdk.NOTIFY_INFERIOR and \
- event.mode == gtk.gdk.CROSSING_NORMAL:
- self._popdown_anim.stop()
- self._secondary_anim.start()
-
- def __leave_notify_event_cb(self, widget, event):
- if event.detail != gtk.gdk.NOTIFY_INFERIOR and \
- event.mode == gtk.gdk.CROSSING_NORMAL:
- self.popdown()
-
- def __show_cb(self, widget):
- self.menu.set_active(True)
-
- self._invoker.notify_popup()
-
- self._up = True
- self.emit('popup')
-
- def __hide_cb(self, widget):
- logging.debug('__hide_cb')
- self.menu.set_active(False)
-
- self._secondary_anim.stop()
-
- if self._invoker:
- self._invoker.notify_popdown()
-
- self._up = False
- self.emit('popdown')
-
-
-class PaletteActionBar(gtk.HButtonBox):
- def add_action(self, label, icon_name=None):
- button = gtk.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'
-
- __gsignals__ = {
- 'item-inserted': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE, ([]))
- }
-
- 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.emit('item-inserted')
- self.show()
-
- def attach(self, child, left_attach, right_attach,
- top_attach, bottom_attach):
- _sugarext.Menu.attach(self, child, left_attach, right_attach,
- top_attach, bottom_attach)
- self.emit('item-inserted')
- 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.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)
-
-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, ([])),
- 'right-click': (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.parent = None
-
- 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
- self._palette = None
-
- def attach(self, parent):
- self.parent = parent
-
- def detach(self):
- self.parent = None
- if self._palette is not None:
- self._palette.destroy()
- self._palette = None
-
- 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
-
- def _ensure_palette_exists(self):
- if self.parent and self.palette is None:
- palette = self.parent.create_palette()
- if palette:
- self.palette = palette
-
- def notify_mouse_enter(self):
- self._ensure_palette_exists()
- self.emit('mouse-enter')
-
- def notify_mouse_leave(self):
- self.emit('mouse-leave')
-
- def notify_right_click(self):
- self._ensure_palette_exists()
- self.emit('right-click')
-
- def get_palette(self):
- return self._palette
-
- def set_palette(self, palette):
- if self._palette:
- self._palette.props.invoker = None
-
- self._palette = palette
-
- if self._palette:
- self._palette.props.invoker = self
-
- palette = gobject.property(
- type=object, setter=set_palette, getter=get_palette)
-
-class WidgetInvoker(Invoker):
- def __init__(self, parent=None, widget=None):
- Invoker.__init__(self)
-
- self._widget = None
- self._enter_hid = None
- self._leave_hid = None
- self._release_hid = None
-
- if parent or widget:
- self.attach_widget(parent, widget)
-
- def attach_widget(self, parent, widget=None):
- if widget:
- self._widget = widget
- else:
- self._widget = parent
-
- self.notify('widget')
-
- self._enter_hid = self._widget.connect('enter-notify-event',
- self.__enter_notify_event_cb)
- self._leave_hid = self._widget.connect('leave-notify-event',
- self.__leave_notify_event_cb)
- self._release_hid = self._widget.connect('button-release-event',
- self.__button_release_event_cb)
-
- self.attach(parent)
-
- def detach(self):
- Invoker.detach(self)
- self._widget.disconnect(self._enter_hid)
- self._widget.disconnect(self._leave_hid)
- self._widget.disconnect(self._release_hid)
-
- 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):
- if self._widget.flags() & gtk.NO_WINDOW:
- x, y = self._widget.allocation.x, self._widget.allocation.y
- else:
- x = y = 0
-
- wstyle = self._widget.get_style()
- gap = _calculate_gap(self.get_rect(), palette.get_rect())
-
- if gap:
- wstyle.paint_box_gap(event.window, gtk.STATE_PRELIGHT,
- gtk.SHADOW_IN, event.area, self._widget,
- "palette-invoker", x, y,
- self._widget.allocation.width,
- self._widget.allocation.height,
- gap[0], gap[1], gap[2])
- else:
- wstyle.paint_box(event.window, gtk.STATE_PRELIGHT,
- gtk.SHADOW_IN, event.area, self._widget,
- "palette-invoker", x, y,
- self._widget.allocation.width,
- self._widget.allocation.height)
-
- def __enter_notify_event_cb(self, widget, event):
- self.notify_mouse_enter()
-
- def __leave_notify_event_cb(self, widget, event):
- self.notify_mouse_leave()
-
- def __button_release_event_cb(self, widget, event):
- if event.button == 3:
- self.notify_right_click()
- return True
- else:
- return False
-
- 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, parent=None):
- Invoker.__init__(self)
-
- self._position_hint = self.AT_CURSOR
- self._motion_hid = None
- self._release_hid = None
- self._item = None
-
- if parent:
- self.attach(parent)
-
- def attach(self, parent):
- Invoker.attach(self, parent)
-
- self._item = parent
- self._motion_hid = self._item.connect('motion-notify-event',
- self.__motion_notify_event_cb)
- self._release_hid = self._item.connect('button-release-event',
- self.__button_release_event_cb)
-
- def detach(self):
- Invoker.detach(self)
- self._item.disconnect(self._motion_hid)
- self._item.disconnect(self._release_hid)
-
- 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:
- self.notify_mouse_enter()
- elif event.detail == hippo.MOTION_DETAIL_LEAVE:
- self.notify_mouse_leave()
-
- return False
-
- def __button_release_event_cb(self, button, event):
- if event.button == 3:
- self.notify_right_click()
- return True
- else:
- return False
-
- def get_toplevel(self):
- return hippo.get_canvas_for_item(self._item).get_toplevel()
-
-class ToolInvoker(WidgetInvoker):
- def __init__(self, parent=None):
- WidgetInvoker.__init__(self)
-
- if parent:
- self.attach_tool(parent)
-
- def attach_tool(self, widget):
- self.attach_widget(widget, 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