New Palette widget

sugar/graphics/palette.py

@@ -0,0 +1,158 @@
+#!/usr/bin/env python
+
+# Copyright (C) 2007, Eduardo Silva (edsiper@gmail.com)
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program 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 General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+import gtk
+import gobject
+import pango
+
+ALIGNMENT_BOTTOM_LEFT   = 0
+ALIGNMENT_BOTTOM_RIGHT  = 1
+ALIGNMENT_LEFT_BOTTOM   = 2
+ALIGNMENT_LEFT_TOP      = 3
+ALIGNMENT_RIGHT_BOTTOM  = 4
+ALIGNMENT_RIGHT_TOP     = 5
+ALIGNMENT_TOP_LEFT      = 6
+ALIGNMENT_TOP_RIGHT     = 7
+
+class Palette(gtk.Window):
+    __gtype_name__ = 'SugarPalette'
+
+    __gproperties__ = {
+        'parent': (object, None, None, gobject.PARAM_READWRITE),
+
+        'alignment': (gobject.TYPE_INT, None, None, 0, 7, ALIGNMENT_BOTTOM_LEFT,
+                    gobject.PARAM_READWRITE)
+    }
+
+    _PADDING    = 1
+    _WIN_BORDER = 5
+
+    def __init__(self):
+
+        gobject.GObject.__init__(self)
+        gtk.Window.__init__(self, gtk.WINDOW_POPUP)
+
+        self._palette_label = gtk.Label()
+        self._palette_label.set_ellipsize(pango.ELLIPSIZE_START)
+
+        self._separator = gtk.HSeparator()
+        self._separator.hide()
+
+        self._menu_bar = gtk.MenuBar()
+        self._menu_bar.set_pack_direction(gtk.PACK_DIRECTION_TTB)
+        self._menu_bar.show()
+
+        self._content = gtk.HBox()
+        self._button_bar = gtk.HButtonBox()
+
+        # Set main container
+        vbox = gtk.VBox(False, 0)
+        vbox.pack_start(self._palette_label, False, False, self._PADDING)
+        vbox.pack_start(self._separator, True, True, self._PADDING)
+        vbox.pack_start(self._menu_bar, True, True, self._PADDING)
+        vbox.pack_start(self._content, True, True, self._PADDING)
+        vbox.pack_start(self._button_bar, True, True, self._PADDING)
+        vbox.show()
+
+        # FIXME
+        self.connect('focus_out_event', self._close_palette)
+
+        self.set_border_width(self._WIN_BORDER)
+        self.add(vbox)
+        self.show()
+        
+        # Set the palette position using as reference the 
+        # parent widget
+        self._set_palette_position()
+
+    def do_set_property(self, pspec, value):
+        
+        if pspec.name == 'parent':
+            self._parent_widget = value
+        elif pspec.name == 'alignment':
+            self._alignment = value
+        else:
+            raise AssertionError
+
+    def _set_palette_position(self):
+
+        window_axis = self._parent_widget.window.get_origin()
+        parent_rectangle = self._parent_widget.get_allocation()
+
+        palette_width, palette_height = self.get_size_request()
+
+        # POSITIONING NOT TESTED
+        if self._alignment == ALIGNMENT_BOTTOM_LEFT:
+            move_x = window_axis[0] + parent_rectangle.x
+            move_y = window_axis[1] + parent_rectangle.y + parent_rectangle.height
+
+        elif self._alignment == ALIGNMENT_BOTTOM_RIGHT:
+            move_x = parent_rectangle.x - palette_width
+            move_y = window_axis[1] + parent_rectangle.y + parent_rectangle.height
+        
+        elif self._alignment == ALIGNMENT_LEFT_BOTTOM:
+            move_x = parent_rectangle.x - palette_width
+            move_y = palette_rectangle.y
+
+        elif self._alignment == ALIGNMENT_LEFT_TOP:
+            move_x = parent_rectangle.x - palette_width
+            move_y = parent_rectangle.y + palette_rectangle.height
+
+        elif self._alignment == ALIGNMENT_RIGHT_BOTTOM:
+            move_x = parent_rectangle.x + parent_rectangle.width
+            move_y = parent_rectangle.y
+
+        elif self._alignment == ALIGNMENT_RIGHT_TOP:
+            move_x = parent_rectangle.x + parent_rectangle.width
+            move_y = parent_rectangle.y + parent_rectangle.height
+
+        elif self._alignment == ALIGNMENT_TOP_LEFT:
+            move_x = parent_rectangle.x
+            move_y = parent_rectangle.y - palette_height
+
+        elif self._alignment == ALIGNMENT_TOP_RIGHT:
+            move_x = (parent_rectangle.x + parent_rectangle.width) - palette_width
+            move_y = parent_rectangle.y - palette_height
+
+        self.move(move_x, move_y)
+
+    def _close_palette(self, widget, event):
+        self.destroy()
+
+    def set_primary_state(self, label, accel_path=None):
+        if accel_path != None:
+            item = gtk.MenuItem(label)
+            item.set_accel_path(accel_path)
+            self.append_menu_item(item)
+            self._separator.hide()
+        else:
+            self._palette_label.set_text(label)
+            self._separator.show()
+
+    def append_menu_item(self, item):
+        self._menu_bar.append(item)
+        item.show()
+
+    def set_content(self, widget):
+        self._content.pack_start(widget, True, True, self._PADDING)
+        widget.show()
+
+    def append_button(self, button):
+        self._button_bar.pack_start(button, True, True, self._PADDING)
+        button.show()
+