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Diffstat (limited to 'sugar-toolkit/src/sugar/tutorius/dragbox.py')
| -rw-r--r-- | sugar-toolkit/src/sugar/tutorius/dragbox.py | 120 |
1 files changed, 0 insertions, 120 deletions
diff --git a/sugar-toolkit/src/sugar/tutorius/dragbox.py b/sugar-toolkit/src/sugar/tutorius/dragbox.py deleted file mode 100644 index d84e4ee..0000000 --- a/sugar-toolkit/src/sugar/tutorius/dragbox.py +++ /dev/null @@ -1,120 +0,0 @@ -# Copyright (C) 2009, Tutorius.org -# -# 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 -""" -This module defines the DragBox class, representing a gtk.Layout like container -which supports a "children dragging mode". -""" - -import gtk - -class DragBox(gtk.EventBox): - """ - A DragBox represents a gtk container whose child object can be arbitrarily - placed, like for a gtk.Layout. However DragBox implements a child "dragging" - mode which allows the user to freely move immediate children of the DragBox. - - This can be toggled by the dragMode property (default to False) - - Default behavior is to keep children at minimal size, as returned by - a call to gtk.Widget.get_size(). - - """ - def __init__(self): - gtk.EventBox.__init__(self) - - self.set_above_child(False) - self.connect("motion-notify-event", self._on_mouse_evt) - self.connect("button-press-event", self._on_mouse_evt) - self.connect("button-release-event", self._on_mouse_evt) - - self._drag_mode = False - self._dragging = None # the object being dragged, or None - self._last_mouse_pos = None # last known mouse position (win. relative) - - self._layout = gtk.Layout() - self.add(self._layout) - - def attach(self, widget, xPos=0, yPos=0, size=None, resizable=False): - """ - Adds the child to the EventBox hierarchy. - widget is expected to be a displayable gtk.Widget and will respond - to the dragMode by being dragable. - """ - # TODO handle child and set size - self._layout.put(child_widget=widget, x=xPos, y=yPos) - - def show(self): - gtk.EventBox.show(self) - self._layout.show() - - def hide(self): - gtk.EventBox.hide(self) - self._layout.hide() - - def _on_mouse_evt(self, widget, event, data=None): - """ - Callback registered on mouse events. - _on_mouse_evt does the actual child selection and moving - """ - if not self._drag_mode: - return - - x, y = event.get_coords() - - if self._dragging is not None and event.type is gtk.gdk.MOTION_NOTIFY: - child = self._dragging.get_allocation() - self._layout.move(self._dragging, - int(child.x+x-self._last_mouse_pos[0]), - int(child.y+y-self._last_mouse_pos[1])) - self._last_mouse_pos = event.get_coords() - # FIXME scale layout or constraint dragging to DragBox - - elif self._dragging is None and event.type is gtk.gdk.BUTTON_PRESS: - # iterate in revese as last drawn child is over the others - for child in reversed(self._layout.get_children()): - rect = child.get_allocation() - if x >= rect.x and x < rect.x+rect.width \ - and y >= rect.y and y < rect.y+rect.height: - self._dragging = child - # Common interface paradigm is that selecting an item - # goes to top of stack it so we do just that. - self._layout.remove(child) - self._layout.put(child, rect.x, rect.y) - break - self._last_mouse_pos = event.get_coords() - # TODO add conditional restack child - - elif self._dragging is not None \ - and event.type is gtk.gdk.BUTTON_RELEASE: - self._dragging = None - - def _set_drag_mode(self, value): - if (not self._drag_mode) and value: - self.set_above_child(True) - elif self._drag_mode and (not value): - self.set_above_child(False) - - self._drag_mode = value - - def _get_drag_mode(self): - return self._drag_mode - - dragMode = property(fset=_set_drag_mode, fget=_get_drag_mode, - doc="Defines whether widgets in DragBox can be mouse dragged.") - - # TODO set child properties (list_child_properties) - - |