318 lines
10 KiB
Python
318 lines
10 KiB
Python
# Copyright (C) 2007, Eduardo Silva (edsiper@gmail.com)
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2 of the License, or (at your option) any later version.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this library; if not, write to the
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# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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# Boston, MA 02111-1307, USA.
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import gtk
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from gtk import gdk, keysyms
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import gobject
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import time
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import hippo
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ALIGNMENT_AUTOMATIC = 0
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ALIGNMENT_BOTTOM_LEFT = 1
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ALIGNMENT_BOTTOM_RIGHT = 2
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ALIGNMENT_LEFT_BOTTOM = 3
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ALIGNMENT_LEFT_TOP = 4
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ALIGNMENT_RIGHT_BOTTOM = 5
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ALIGNMENT_RIGHT_TOP = 6
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ALIGNMENT_TOP_LEFT = 7
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ALIGNMENT_TOP_RIGHT = 8
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class Palette(gtk.Window):
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__gtype_name__ = 'SugarPalette'
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__gproperties__ = {
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'invoker': (object, None, None, gobject.PARAM_READWRITE),
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'alignment': (gobject.TYPE_INT, None, None, 0, 8, ALIGNMENT_AUTOMATIC,
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gobject.PARAM_READWRITE),
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'is-tooltip': (bool, None, None, False, gobject.PARAM_READWRITE | gobject.PARAM_CONSTRUCT_ONLY)
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}
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_PADDING = 1
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_WIN_BORDER = 5
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def __init__(self, **kwargs):
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gobject.GObject.__init__(self, type=gtk.WINDOW_POPUP, **kwargs)
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gtk.Window.__init__(self)
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self._alignment = ALIGNMENT_AUTOMATIC
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self._palette_label = gtk.Label()
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self._palette_label.show()
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vbox = gtk.VBox(False, 0)
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vbox.pack_start(self._palette_label, True, True, self._PADDING)
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# tooltip palette ?
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if not self._is_tooltip:
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self._separator = gtk.HSeparator()
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self._separator.hide()
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self._menu_bar = gtk.MenuBar()
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self._menu_bar.set_pack_direction(gtk.PACK_DIRECTION_TTB)
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self._menu_bar.show()
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self._content = gtk.HBox()
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self._content.show()
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self._button_bar = gtk.HButtonBox()
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self._button_bar.show()
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# Set main container
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vbox.pack_start(self._separator, True, True, self._PADDING)
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vbox.pack_start(self._menu_bar, True, True, self._PADDING)
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vbox.pack_start(self._content, True, True, self._PADDING)
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vbox.pack_start(self._button_bar, True, True, self._PADDING)
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vbox.show()
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self.add(vbox)
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# Widget events
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self.connect('enter-notify-event', self._mouse_over_widget_cb)
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self.connect('leave-notify-event', self._mouse_out_widget_cb)
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self.connect('button-press-event', self._close_palette_cb)
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self.connect('key-press-event', self._on_key_press_event_cb)
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self.set_border_width(self._WIN_BORDER)
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self._scr_width = gtk.gdk.screen_width()
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self._scr_height = gtk.gdk.screen_height()
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def do_set_property(self, pspec, value):
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if pspec.name == 'invoker':
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self._invoker = value
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elif pspec.name == 'alignment':
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self._alignment = value
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elif pspec.name == 'is-tooltip':
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self._is_tooltip = value
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else:
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raise AssertionError
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def set_position(self):
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# Automatic Alignment
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if self._alignment == ALIGNMENT_AUTOMATIC:
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# Trying Different types of ALIGNMENTS,
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# and return the choosen one
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if self._try_position(ALIGNMENT_BOTTOM_LEFT):
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return ALIGNMENT_BOTTOM_LEFT
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elif self._try_position(ALIGNMENT_BOTTOM_RIGHT):
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return ALIGNMENT_BOTTOM_RIGHT
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elif self._try_position(ALIGNMENT_LEFT_BOTTOM):
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return ALIGNMENT_LEFT_BOTTOM
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elif self._try_position(ALIGNMENT_LEFT_TOP):
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return ALIGNMENT_LEFT_TOP
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elif self._try_position(ALIGNMENT_RIGHT_BOTTOM):
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return ALIGNMENT_RIGHT_BOTTOM
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elif self._try_position(ALIGNMENT_RIGHT_TOP):
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return ALIGNMENT_RIGHT_TOP
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elif self._try_position(ALIGNMENT_TOP_LEFT):
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return ALIGNMENT_TOP_LEFT
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elif self._try_position(ALIGNMENT_TOP_RIGHT):
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return ALIGNMENT_TOP_RIGHT
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else:
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# Manual Alignment
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move_x, move_y = self._calc_position(self._alignment)
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self.move(move_x, move_y)
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def _try_position(self, alignment):
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move_x, move_y = self._calc_position(alignment)
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self._width, self._height = self.size_request()
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plt_x, plt_y = self.window.get_origin()
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if move_x > plt_x:
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plt_x += (move_x - plt_x)
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else:
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plt_x -= (plt_x - move_x)
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if move_y > plt_y:
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plt_y += (move_y - plt_y)
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else:
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plt_y -= (plt_y - move_y)
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if (plt_x<0 or plt_x+self._width>self._scr_width) or (plt_y<0 or plt_y+self._height>self._scr_height):
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return False
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else:
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self.move(move_x, move_y)
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self.show()
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return True
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def _calc_position(self, alignment):
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# Invoker: x, y, width and height
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inv_rect = self._invoker.get_rect()
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palette_rectangle = self.get_allocation()
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if alignment == ALIGNMENT_BOTTOM_LEFT:
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move_x = inv_rect.x
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move_y = inv_rect.y + inv_rect.height
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elif alignment == ALIGNMENT_BOTTOM_RIGHT:
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move_x = (inv_rect.x + inv_rect.width) - self._width
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move_y = inv_rect.y + inv_rect.height
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elif alignment == ALIGNMENT_LEFT_BOTTOM:
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move_x = inv_rect.x - self._width
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move_y = inv_rect.y
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elif alignment == ALIGNMENT_LEFT_TOP:
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move_x = inv_rect.x - self._width
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move_y = (inv_rect.y + inv_rect.height) - palette_rectangle.height
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elif alignment == ALIGNMENT_RIGHT_BOTTOM:
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move_x = inv_rect.x + inv_rect.width
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move_y = inv_rect.y
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elif alignment == ALIGNMENT_RIGHT_TOP:
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move_x = inv_rect.x + inv_rect.width
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move_y = (inv_rect.y + inv_rect.height) - palette_rectangle.height
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elif alignment == ALIGNMENT_TOP_LEFT:
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move_x = inv_rect.x
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move_y = inv_rect.y - palette_rectangle.height
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elif alignment == ALIGNMENT_TOP_RIGHT:
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move_x = (inv_rect.x + inv_rect.width) - self._width
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move_y = inv_rect.y - palette_rectangle.height
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return move_x, move_y
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def set_primary_state(self, label, accel_path=None):
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if accel_path != None:
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item = gtk.MenuItem(label)
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item.set_accel_path(accel_path)
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self.append_menu_item(item)
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self._separator.hide()
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else:
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self._palette_label.set_text(label)
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if not self._is_tooltip:
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self._separator.show()
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def append_menu_item(self, item):
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self._menu_bar.append(item)
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item.show()
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def set_content(self, widget):
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self._content.pack_start(widget, True, True, self._PADDING)
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widget.show()
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def append_button(self, button):
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button.connect('released', self._close_palette_cb)
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self._button_bar.pack_start(button, True, True, self._PADDING)
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button.show()
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# Display the palette and set the position on the screen
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def popup(self):
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self.realize()
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self.set_position()
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self._pointer_ungrab()
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def popdown(self):
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self._pointer_ungrab()
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self.hide()
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# PRIVATE METHODS
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# Is the mouse out of the widget ?
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def _is_mouse_out(self, widget):
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mouse_x, mouse_y = widget.get_pointer()
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event_rect = gdk.Rectangle(mouse_x, mouse_y, 1, 1)
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if (self.allocation.intersect(event_rect).width==0):
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return True
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else:
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return False
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def _pointer_ungrab(self):
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gdk.keyboard_ungrab()
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def _pointer_grab(self):
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gdk.keyboard_grab(self.window, False)
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# SIGNAL HANDLERS
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# Release the GDK pointer and hide the palette
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def _close_palette_cb(self, widget=None, event=None):
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self.popdown()
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# Mouse is out of the widget
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def _mouse_out_widget_cb(self, widget, event):
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if (widget == self) and self._is_mouse_out(widget):
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self._close_palette_cb()
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return
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self._pointer_grab()
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# Mouse inside the widget
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def _mouse_over_widget_cb(self, widget, event):
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self._pointer_ungrab()
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# Some key is pressed
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def _on_key_press_event_cb(self, window, event):
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# Escape or Alt+Up: Close
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# Enter, Return or Space: Select
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keyval = event.keyval
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state = event.state & gtk.accelerator_get_default_mod_mask()
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if (keyval == keysyms.Escape or
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((keyval == keysyms.Up or keyval == keysyms.KP_Up) and
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state == gdk.MOD1_MASK)):
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self._close_palette_cb()
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class WidgetInvoker:
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def __init__(self, parent):
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self._parent = parent
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def get_rect(self):
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win_x, win_y = self._parent.window.get_origin()
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rectangle = self._parent.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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# Is mouse over self._parent ?
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def is_mouse_over(self):
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pointer_x, pointer_y = self._parent.get_pointer()
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self._parent_alloc = self._parent.get_allocation()
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pointer_rect = gdk.Rectangle(pointer_x + self._parent_alloc.x, \
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pointer_y + self._parent_alloc.y, 1, 1)
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if (self._parent.allocation.intersect(pointer_rect).width == 0):
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return False
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return True
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class CanvasInvoker:
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def __init__(self, parent):
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self._parent = parent
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def get_rect(self):
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context = self._parent.get_context()
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x, y = context.translate_to_screen(self._parent)
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width, height = self._parent.get_allocation()
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return gtk.gdk.Rectangle(x, y, width, height)
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# Is mouse over self._parent ?
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def is_mouse_over(self):
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return True
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