EffectWidget
index
/home/david/Projects/Jokosher/trunk/Jokosher/EffectWidget.py

#    THIS FILE IS PART OF THE JOKOSHER PROJECT AND LICENSED UNDER THE GPL. SEE
#    THE 'COPYING' FILE FOR DETAILS
#
#    EffectWidget.py
#    
#    This module us used to create the custom Cairo widget that is used to
#    represent an effect.
#
#=========================================================================

 
Modules
       
cairo
gobject
gtk
math
textwrap

 
Classes
       
gobject.DrawingArea(gobject.Widget)
EffectWidget

 
class EffectWidget(gobject.DrawingArea)
    This class creates a custom Cairo widget that is displayed in the
effects dialog box. This widget has the following actions:
 
        single click -- move the widget order (not implemented yet).
        double click -- show effect settings.
        single click over the small red circle -- remove the effect.
 
 
Method resolution order:
EffectWidget
gobject.DrawingArea
gobject.Widget
gobject.Object
gobject.GObject
atk.ImplementorIface
gobject.GInterface
__builtin__.object

Methods defined here:
OnMouseDown(self, widget, mouse)
If the mouse is clicked, detect where it is clicked and whether
it is a double click or not.
 
Parameters:
        widget -- reserved for GTK callbacks, don't use it explicitly.
        mouse -- reserved for GTK callbacks, don't use it explicitly.
__init__(self, effect, effectname)
Creates a new instance of EffectWidget.
 
Parameters:
        effect -- the effect to be drawn.
        effectname -- name of the effect to be drawn.
draw(self, context)
This method will draw the EffectWidget.
 
Parameters:
        context -- a cairo drawing area to draw the EffectWidget onto.
expose(self, widget, event)
When the widget exposes, this method is called.
It then triggers a redraw.
 
Parameters:
        widget -- reserved for GTK callbacks, don't use it explicitly.
        event -- reserved for GTK callbacks, don't use it explicitly.
        
Returns:
        False -- indicates the GTK signal to:
                        1) continue propagating the regular signal.
                        2) stop calling the callback on a timeout_add.

Methods inherited from gobject.DrawingArea:
size(...)

Data and other attributes inherited from gobject.DrawingArea:
__gtype__ = <GType GtkDrawingArea (135890848)>

Methods inherited from gobject.Widget:
activate(...)
add_accelerator(...)
add_events(...)
add_mnemonic_label(...)
can_activate_accel(...)
child_focus(...)
child_notify(...)
class_path(...)
create_pango_context(...)
create_pango_layout(...)
destroy(...)
drag_begin(...)
drag_check_threshold(...)
drag_dest_add_image_targets(...)
drag_dest_add_text_targets(...)
drag_dest_add_uri_targets(...)
drag_dest_find_target(...)
drag_dest_get_target_list(...)
drag_dest_get_track_motion(...)
drag_dest_set(...)
drag_dest_set_proxy(...)
drag_dest_set_target_list(...)
drag_dest_set_track_motion(...)
drag_dest_unset(...)
drag_get_data(...)
drag_highlight(...)
drag_source_add_image_targets(...)
drag_source_add_text_targets(...)
drag_source_add_uri_targets(...)
drag_source_get_target_list(...)
drag_source_set(...)
drag_source_set_icon(...)
drag_source_set_icon_name(...)
drag_source_set_icon_pixbuf(...)
drag_source_set_icon_stock(...)
drag_source_set_target_list(...)
drag_source_unset(...)
drag_unhighlight(...)
ensure_style(...)
event(...)
freeze_child_notify(...)
get_accessible(...)
get_action(...)
get_allocation(...)
get_ancestor(...)
get_child_requisition(...)
get_child_visible(...)
get_clipboard(...)
get_colormap(...)
get_composite_name(...)
get_direction(...)
get_display(...)
get_events(...)
get_extension_events(...)
get_modifier_style(...)
get_name(...)
get_no_show_all(...)
get_pango_context(...)
get_parent(...)
get_parent_window(...)
get_pointer(...)
get_root_window(...)
get_screen(...)
get_settings(...)
get_size_request(...)
get_style(...)
get_toplevel(...)
get_visual(...)
grab_add(...)
grab_default(...)
grab_focus(...)
grab_remove(...)
has_screen(...)
hide(...)
hide_all(...)
hide_on_delete(...)
input_shape_combine_mask(...)
intersect(...)
is_ancestor(...)
is_composited(...)
is_focus(...)
list_mnemonic_labels(...)
map(...)
menu_get_for_attach_widget(...)
mnemonic_activate(...)
modify_base(...)
modify_bg(...)
modify_fg(...)
modify_font(...)
modify_style(...)
modify_text(...)
path(...)
queue_clear(...)
queue_clear_area(...)
queue_draw(...)
queue_draw_area(...)
queue_resize(...)
queue_resize_no_redraw(...)
rc_get_style(...)
realize(...)
region_intersect(...)
remove_accelerator(...)
remove_mnemonic_label(...)
render_icon(...)
reparent(...)
reset_rc_styles(...)
reset_shapes(...)
selection_add_target(...)
selection_add_targets(...)
selection_clear_targets(...)
selection_convert(...)
selection_owner_set(...)
selection_remove_all(...)
send_expose(...)
set_accel_path(...)
set_app_paintable(...)
set_child_visible(...)
set_colormap(...)
set_composite_name(...)
set_direction(...)
set_double_buffered(...)
set_events(...)
set_extension_events(...)
set_name(...)
set_no_show_all(...)
set_parent(...)
set_parent_window(...)
set_redraw_on_allocate(...)
set_scroll_adjustments(...)
set_sensitive(...)
set_size_request(...)
set_state(...)
set_style(...)
set_uposition(...)
set_usize(...)
shape_combine_mask(...)
show(...)
show_all(...)
show_now(...)
size_allocate(...)
size_request(...)
style_get_property(...)
thaw_child_notify(...)
translate_coordinates(...)
unmap(...)
unparent(...)
unrealize(...)

Data and other attributes inherited from gobject.Widget:
allocation = <attribute 'allocation' of 'gtk.Widget' objects>
do_button_press_event = <built-in method do_button_press_event of GObjectMeta object>
do_button_release_event = <built-in method do_button_release_event of GObjectMeta object>
do_can_activate_accel = <built-in method do_can_activate_accel of GObjectMeta object>
do_client_event = <built-in method do_client_event of GObjectMeta object>
do_composited_changed = <built-in method do_composited_changed of GObjectMeta object>
do_configure_event = <built-in method do_configure_event of GObjectMeta object>
do_delete_event = <built-in method do_delete_event of GObjectMeta object>
do_destroy_event = <built-in method do_destroy_event of GObjectMeta object>
do_direction_changed = <built-in method do_direction_changed of GObjectMeta object>
do_drag_begin = <built-in method do_drag_begin of GObjectMeta object>
do_drag_data_delete = <built-in method do_drag_data_delete of GObjectMeta object>
do_drag_data_get = <built-in method do_drag_data_get of GObjectMeta object>
do_drag_data_received = <built-in method do_drag_data_received of GObjectMeta object>
do_drag_drop = <built-in method do_drag_drop of GObjectMeta object>
do_drag_end = <built-in method do_drag_end of GObjectMeta object>
do_drag_leave = <built-in method do_drag_leave of GObjectMeta object>
do_drag_motion = <built-in method do_drag_motion of GObjectMeta object>
do_enter_notify_event = <built-in method do_enter_notify_event of GObjectMeta object>
do_event = <built-in method do_event of GObjectMeta object>
do_expose_event = <built-in method do_expose_event of GObjectMeta object>
do_focus = <built-in method do_focus of GObjectMeta object>
do_focus_in_event = <built-in method do_focus_in_event of GObjectMeta object>
do_focus_out_event = <built-in method do_focus_out_event of GObjectMeta object>
do_get_accessible = <built-in method do_get_accessible of GObjectMeta object>
do_grab_broken_event = <built-in method do_grab_broken_event of GObjectMeta object>
do_grab_focus = <built-in method do_grab_focus of GObjectMeta object>
do_grab_notify = <built-in method do_grab_notify of GObjectMeta object>
do_hide = <built-in method do_hide of GObjectMeta object>
do_hide_all = <built-in method do_hide_all of GObjectMeta object>
do_hierarchy_changed = <built-in method do_hierarchy_changed of GObjectMeta object>
do_key_press_event = <built-in method do_key_press_event of GObjectMeta object>
do_key_release_event = <built-in method do_key_release_event of GObjectMeta object>
do_leave_notify_event = <built-in method do_leave_notify_event of GObjectMeta object>
do_map = <built-in method do_map of GObjectMeta object>
do_map_event = <built-in method do_map_event of GObjectMeta object>
do_mnemonic_activate = <built-in method do_mnemonic_activate of GObjectMeta object>
do_motion_notify_event = <built-in method do_motion_notify_event of GObjectMeta object>
do_no_expose_event = <built-in method do_no_expose_event of GObjectMeta object>
do_parent_set = <built-in method do_parent_set of GObjectMeta object>
do_popup_menu = <built-in method do_popup_menu of GObjectMeta object>
do_property_notify_event = <built-in method do_property_notify_event of GObjectMeta object>
do_proximity_in_event = <built-in method do_proximity_in_event of GObjectMeta object>
do_proximity_out_event = <built-in method do_proximity_out_event of GObjectMeta object>
do_realize = <built-in method do_realize of GObjectMeta object>
do_screen_changed = <built-in method do_screen_changed of GObjectMeta object>
do_scroll_event = <built-in method do_scroll_event of GObjectMeta object>
do_selection_clear_event = <built-in method do_selection_clear_event of GObjectMeta object>
do_selection_get = <built-in method do_selection_get of GObjectMeta object>
do_selection_notify_event = <built-in method do_selection_notify_event of GObjectMeta object>
do_selection_received = <built-in method do_selection_received of GObjectMeta object>
do_selection_request_event = <built-in method do_selection_request_event of GObjectMeta object>
do_show = <built-in method do_show of GObjectMeta object>
do_show_all = <built-in method do_show_all of GObjectMeta object>
do_show_help = <built-in method do_show_help of GObjectMeta object>
do_size_allocate = <built-in method do_size_allocate of GObjectMeta object>
do_size_request = <built-in method do_size_request of GObjectMeta object>
do_state_changed = <built-in method do_state_changed of GObjectMeta object>
do_style_set = <built-in method do_style_set of GObjectMeta object>
do_unmap = <built-in method do_unmap of GObjectMeta object>
do_unmap_event = <built-in method do_unmap_event of GObjectMeta object>
do_unrealize = <built-in method do_unrealize of GObjectMeta object>
do_visibility_notify_event = <built-in method do_visibility_notify_event of GObjectMeta object>
do_window_state_event = <built-in method do_window_state_event of GObjectMeta object>
get_activate_signal = <built-in method get_activate_signal of GObjectMeta object>
name = <attribute 'name' of 'gtk.Widget' objects>
parent = <attribute 'parent' of 'gtk.Widget' objects>
saved_state = <attribute 'saved_state' of 'gtk.Widget' objects>
set_activate_signal = <built-in method set_activate_signal of GObjectMeta object>
set_set_scroll_adjustments_signal = <built-in method set_set_scroll_adjustments_signal of GObjectMeta object>
state = <attribute 'state' of 'gtk.Widget' objects>
style = <attribute 'style' of 'gtk.Widget' objects>
window = <attribute 'window' of 'gtk.Widget' objects>

Methods inherited from gobject.Object:
flags(...)
remove_data(...)
remove_no_notify(...)
set_flags(...)
unset_flags(...)

Data and other attributes inherited from gobject.Object:
do_destroy = <built-in method do_destroy of GObjectMeta object>

Methods inherited from gobject.GObject:
__cmp__(...)
x.__cmp__(y) <==> cmp(x,y)
__gobject_init__(...)
__hash__(...)
x.__hash__() <==> hash(x)
__repr__(...)
x.__repr__() <==> repr(x)
chain(...)
connect(...)
connect_after(...)
connect_object(...)
connect_object_after(...)
disconnect(...)
disconnect_by_func(...)
emit(...)
emit_stop_by_name(...)
freeze_notify(...)
get_data(...)
get_property(...)
handler_block(...)
handler_block_by_func(...)
handler_disconnect(...)
handler_is_connected(...)
handler_unblock(...)
handler_unblock_by_func(...)
notify(...)
set_data(...)
set_property(...)
stop_emission(...)
thaw_notify(...)

Data and other attributes inherited from gobject.GObject:
__dict__ = <dictproxy object>
__gdoc__ = 'Object GtkDrawingArea\n\n\n\tThis class creates a cu...ointer\n\nSignals from GObject:\n notify (GParam)\n\n'
__grefcount__ = <attribute '__grefcount__' of 'gobject.GObject' objects>
__new__ = <built-in method __new__ of GObjectMeta object>
T.__new__(S, ...) -> a new object with type S, a subtype of T
props = <gobject.GProps object>

Methods inherited from atk.ImplementorIface:
ref_accessible(...)