def show_placeholder(self):
self.placeholderwindow = PlaceHolderWindow(self.frame)
class DockContainer(gtk.Container):
"""
"""
hresize_cursor = gtk.gdk.Cursor(gtk.gdk.SB_H_DOUBLE_ARROW)
vresize_cursor = gtk.gdk.Cursor(gtk.gdk.SB_V_DOUBLE_ARROW)
def __init__(self, frame):
"""
Arguments:
- `frame`:
"""
## Attribute
#
self.layout = None
self.needs_relayout = True
self.current_handle_index = -1
self.current_handle_group = None
self.dragging = False
self.drag_pos = -1
self.drag_size = -1
self.placeholderwindow = None
self.notebooks = []
self.items = []
## Constructor
#
gtk.Container.__init__(self)
self.props.events = gdk.BUTTON_PRESS_MASK | gdk.BUTTON_RELEASE_MASK | gdk.POINTER_MOTION_MASK | gdk.LEAVE_NOTIFY_MASK
self.frame = frame
## gtk.Widget override
#
def do_realize(self):
"""
"""
self.set_flags(self.flags() | gtk.REALIZED)
self.window = gdk.Window(
self.get_parent_window(),
width=self.allocation.width,
height=self.allocation.height,
window_type=gdk.WINDOW_CHILD,
wclass=gdk.INPUT_OUTPUT,
colormap=self.get_colormap(),
visual=self.get_visual(),
event_mask=self.get_events() | gdk.EXPOSURE_MASK
| gdk.BUTTON1_MOTION_MASK
| gdk.BUTTON_PRESS_MASK
| gdk.BUTTON_RELEASE_MASK)
self.window.set_user_data(self)
self.style.attach(self.window)
self.style.set_background(self.window, gtk.STATE_NORMAL)
def do_size_request(self, requisition):
"""
Arguments:
- `requisition`:
"""
if self.layout:
self.layout_widgets()
requisition.width, requisition.height = self.layout.size_request()
def do_size_allocate(self, rect):
"""
Arguments:
- `allocation`:
"""
gtk.Container.do_size_allocate(self, rect)
if not self.layout:
return
rect.x, rect.y = 0, 0
self.layout_widgets()
self.layout.size = -1
self.layout.size_allocate(rect)
def do_unrealize(self):
"""
"""
self.window.destroy()
def do_expose_event(self, event):
"""
Arguments:
- `event`:
"""
gtk.Container.do_expose_event(self, event)
if self.layout:
self.layout.draw(event.area,
self.current_handle_group,
self.current_handle_index)
def do_motion_notify_event(self, event):
"""
Arguments:
- `widget`:
- `event`:
"""
if self.dragging:
new_pos = event.x if self.current_handle_group.type == DockGroupType.HORIZONTAL else event.y
if new_pos != self.drag_pos:
n_size = self.drag_size + (new_pos - self.drag_pos)
self.current_handle_group.resize_item(self.current_handle_index, n_size)
self.layout.draw_separators(self.allocation,
self.current_handle_group,
self.current_handle_index,
True)
elif self.layout and self.placeholderwindow == None:
grp, index = self.find_handle(self.layout, event.x, event.y)
if grp and index != None:
if self.current_handle_group != grp or self.current_handle_index != index:
if grp.type == DockGroupType.HORIZONTAL:
self.window.set_cursor(self.hresize_cursor)
else:
self.window.set_cursor(self.vresize_cursor)
self.current_handle_group = grp
self.current_handle_index = index
self.layout.draw_separators(self.allocation,
self.current_handle_group,
self.current_handle_index,
True)
elif self.current_handle_group:
self.reset_handle_highlight()
def do_leave_notify_event(self, event):
if not self.dragging and event.mode != gtk.gdk.CROSSING_GRAB:
self.reset_handle_highlight()
def do_button_press_event(self, ev):
if self.current_handle_group:
self.dragging = True
self.drag_pos = ev.x if self.current_handle_group.type == DockGroupType.HORIZONTAL else ev.y
obj = self.current_handle_group.visible_objects[self.current_handle_index]
self.drag_size = obj.allocation.width if self.current_handle_group.type == DockGroupType.HORIZONTAL else obj.allocation.height
def do_button_release_event(self, ev):
self.dragging = False
def do_remove(self, ev):
pass
## gtk.Container
#
def do_forall(self, include_internals, callback, callback_data):
widgets = []
for w in self.notebooks:
widgets.append(w)
for it in self.items:
if it.has_widget and it.widget.parent == self:
widgets.append(it.widget)
for w in widgets:
callback(w, callback_data)
## Separator handling
#
def reset_handle_highlight(self):
self.window.set_cursor(None)
self.current_handle_group = None
self.current_handle_index = -1
if self.layout:
self.layout.draw_separators(self.allocation, None, -1, True)
def find_handle(self, grp, x, y):
found_grp, object_index = None, None
if grp.allocation != None:
x_x = grp.allocation.x
y_y = grp.allocation.y
x_right = grp.allocation.x + grp.allocation.width
y_bottom = grp.allocation.height
else:
x_x, y_y = 0, 0
x_right, y_bottom = 0, 0
x_in_allocation = True if x_x <= x <= x_right else False
y_in_allocation = True if y_y <= y <= y_bottom else False
if grp.type != DockGroupType.TABBED and x_in_allocation and y_in_allocation:
for n, obj in enumerate(grp.visible_objects):
if n < (len(grp.dock_objects) - 1):
if obj.allocation != None:
x_right = obj.allocation.x + obj.allocation.width
y_bottom = obj.allocation.height
else:
x_right, y_bottom = 0, 0
x_in_between = x_right < x < x_right + self.frame.total_handle_size
y_in_between = y_bottom < y < y_bottom + self.frame.total_handle_size
if (grp.type == DockGroupType.HORIZONTAL and x_in_between) or\
(grp.type == DockGroupType.VERTICAL and y_in_between):
found_grp, object_index = grp, n
return found_grp, object_index
if isinstance(obj, DockGroup):
return self.find_handle(obj, x, y)
return found_grp, object_index
## Layout
#
def load_layout(self, dl):
"""
Arguments:
- `dl`:
"""
sickyOnTop = []
for it in self.items:
if (it.behavior & DockItemBehavior.STICKY) != 0:
gitem = self.find_dock_group_item(it.id)
if gitem and gitem.parent_group.is_selected_page(it):
sickyOnTop.append(it)
if self.layout:
self.layout.store_allocation()
self.layout = dl
self.layout.restore_allocation()
for it in self.items:
if (it.behavior & DockItemBehavior.STICKY) != 0:
it.visible = it.sticky_visible
if self.layout.find_dock_group_item(it.id) == None:
it.hide_widget()
self.relayout_widgets()
for it in sickyOnTop:
it.Present(False)
def relayout_widgets(self):
"""
"""
self.needs_relayout = True
self.queue_resize()
def layout_widgets(self):
"""
"""
if not self.needs_relayout:
return
self.needs_relayout = False
tabbed_group = []
self.get_tabbed_groups(self.layout, tabbed_group)
for index, item in enumerate(tabbed_group):
ts = None
if index < len(self.notebooks):
ts = self.notebooks[index]
else:
ts = TabStrip()
ts.show()
self.notebooks.append(ts)
ts.parent = self
item.update_notebook(ts)
for index in range(len(self.notebooks)-1, len(tabbed_group)-1, -1):
ts = self.notebooks[index]
ts.clear()
ts.unparent()
ts.destroy()
self.notebooks.remove_at(index)
self.layout.layout_widgets()
def store_allocation(self):
"""
"""
if self.layout:
self.layout.store_allocation()
## Docking and Placeholder
#
def find_dock_group_item(self, id):
"""
Arguments:
- `id`:
"""
if self.layout == None:
return None
else:
return self.layout.find_dock_group_item(id)
def get_tabbed_groups(self, dock_group, tabbed_group):
"""
Arguments:
- `dock_group`:
- `tabbed_group`:
"""
if dock_group.type == DockGroupType.TABBED:
if len(dock_group.visible_objects) > 1:
tabbed_group.append(dock_group)
else:
dock_group.reset_notebook()
else:
dock_group.reset_notebook()
for dock_object in dock_group.dock_objects:
if isinstance(dock_object, DockGroup):
self.get_tabbed_groups(dock_object, tabbed_group)
def show_placeholder(self):
self.placeholderwindow = PlaceHolderWindow(self.frame)
def update_placeholder(self, item, width, height, allow_docking):
if self.placeholderwindow == None:
return False
px, py = self.get_pointer()
self.placeholderwindow.allow_docking = allow_docking
dock_delegate, rect = self.layout.get_dock_target(item, px, py)
if allow_docking and dock_delegate and rect:
ox, oy = self.window.get_origin()
self.placeholderwindow.relocate(ox + rect.x,
oy + rect.y,
rect.width,
rect.height,
True)
self.placeholderwindow.show()
return True
else:
ox, oy = self.window.get_origin()
self.placeholderwindow.relocate(ox + px - width/2,
oy + py - 18,
width,
height,
False)
self.placeholderwindow.show()
return False
def dock_in_placeholder(self, item):
if self.placeholderwindow == None or not self.placeholderwindow.props.visible:
return
item.status = DockItemStatus.DOCKABLE
px, py = self.get_pointer()
dock_delegate, rect = self.layout.get_dock_target(item, px, py)
if self.placeholderwindow.allow_docking and dock_delegate and rect:
dummy_item = DockGroupItem(self.frame, DockItem(self.frame, "__dummy"))
gitem = self.layout.find_dock_group_item(item.id)
gitem.parent_group.replace_item (gitem, dummy_item);
dock_delegate(item)
dummy_item.parent_group.remove(dummy_item)
self.relayout_widgets()
else:
gi = self.find_dock_group_item(item.id)
px, py = self.placeholderwindow.get_position()
pw, ph = self.placeholderwindow.get_size()
gi.float_rect = gdk.Rectangle(px, py, pw, ph)
item.status = DockItemStatus.FLOATING
def hide_placeholder(self):
if self.placeholderwindow != None:
self.placeholderwindow.destroy()
self.placeholderwindow = None