def __init__(self, content=None, window=None, batch=None, group=None,
anchor=ANCHOR_CENTER, offset=(0, 0), parent=None,
theme=None, movable=True, on_enter=None, on_escape=None):
"""
Creates a new dialog.
@param content The Widget which we wrap
@param window The window to which we belong; used to set the
mouse cursor when appropriate. If set, we will
add ourself to the window as a handler.
@param batch Batch in which we are to place our graphic elements;
may be None if we are to create our own Batch
@param group Group in which we are to place our graphic elements;
may be None
@param anchor Anchor point of the window, relative to which we
are positioned. If ANCHOR_TOP_LEFT is specified,
our top left corner will be aligned to the window's
top left corner; if ANCHOR_CENTER is specified,
our center will be aligned to the window's center,
and so forth.
@param offset Offset from the anchor point. A positive X is always
to the right, a positive Y to the upward direction.
@param theme The Theme which we are to use to generate our graphical
appearance.
@param movable True if the dialog is able to be moved
@param on_enter Callback for when user presses enter on the last
input within this dialog, i.e. form submit
@param on_escape Callback for when user presses escape
"""
assert isinstance(theme, dict)
Wrapper.__init__(self, content=content)
DialogEventManager.__init__(self)
self.window = window
self.anchor = anchor
self.offset = offset
self.theme = theme
self.is_movable = movable
self.on_enter = on_enter
self.on_escape = on_escape
if batch is None:
self.batch = pyglet.graphics.Batch()
self.own_batch = True
else:
self.batch = batch
self.own_batch = False
self.root_group = DialogGroup(parent=group)
self.panel_group = pyglet.graphics.OrderedGroup(0, self.root_group)
self.bg_group = pyglet.graphics.OrderedGroup(1, self.root_group)
self.fg_group = pyglet.graphics.OrderedGroup(2, self.root_group)
self.highlight_group = pyglet.graphics.OrderedGroup(3, self.root_group)
self.needs_layout = True
self.is_dragging = False
if window is None:
self.screen = Widget()
else:
width, height = window.get_size()
self.screen = Widget(width=width, height=height)
window.push_handlers(self)
def __init__(self, content=None, window=None, batch=None, group=None,
anchor=ANCHOR_CENTER, offset=(0, 0), parent=None,
theme=None, movable=True, on_enter=None, on_escape=None):
"""
Creates a new dialog.
@param content The Widget which we wrap
@param window The window to which we belong; used to set the
mouse cursor when appropriate. If set, we will
add ourself to the window as a handler.
@param batch Batch in which we are to place our graphic elements;
may be None if we are to create our own Batch
@param group Group in which we are to place our graphic elements;
may be None
@param anchor Anchor point of the window, relative to which we
are positioned. If ANCHOR_TOP_LEFT is specified,
our top left corner will be aligned to the window's
top left corner; if ANCHOR_CENTER is specified,
our center will be aligned to the window's center,
and so forth.
@param offset Offset from the anchor point. A positive X is always
to the right, a positive Y to the upward direction.
@param theme The Theme which we are to use to generate our graphical
appearance.
@param movable True if the dialog is able to be moved
@param on_enter Callback for when user presses enter on the last
input within this dialog, i.e. form submit
@param on_escape Callback for when user presses escape
"""
assert isinstance(theme, dict)
Wrapper.__init__(self, content=content)
DialogEventManager.__init__(self)
self.window = window
self.anchor = anchor
self.offset = offset
self.theme = theme
self.is_movable = movable
self.on_enter = on_enter
self.on_escape = on_escape
if batch is None:
self.batch = pyglet.graphics.Batch()
self.own_batch = True
else:
self.batch = batch
self.own_batch = False
self.root_group = DialogGroup(parent=group)
self.panel_group = pyglet.graphics.OrderedGroup(0, self.root_group)
self.bg_group = pyglet.graphics.OrderedGroup(1, self.root_group)
self.fg_group = pyglet.graphics.OrderedGroup(2, self.root_group)
self.highlight_group = pyglet.graphics.OrderedGroup(3, self.root_group)
self.needs_layout = True
self.is_dragging = False
if window is None:
self.screen = Widget()
else:
width, height = window.get_size()
self.screen = Widget(width=width, height=height)
window.push_handlers(self)
def size(self, dialog):
"""
Recalculate the size of the Scrollable.
@param dialog Dialog which contains us
"""
if dialog is None:
return
Widget.size(self, dialog)
if self.is_fixed_size:
self.width, self.height = self.max_width, self.max_height
self.hscrollbar_height = dialog.theme["hscrollbar"]["left"]["image"].height
self.vscrollbar_width = dialog.theme["vscrollbar"]["up"]["image"].width
if self.root_group is None: # do we need to re-clone dialog groups?
self.theme = dialog.theme
self.batch = dialog.batch
self.root_group = ScrollableGroup(0, 0, self.width, self.height, parent=dialog.fg_group)
self.panel_group = pyglet.graphics.OrderedGroup(0, self.root_group)
self.bg_group = pyglet.graphics.OrderedGroup(1, self.root_group)
self.fg_group = pyglet.graphics.OrderedGroup(2, self.root_group)
self.highlight_group = pyglet.graphics.OrderedGroup(3, self.root_group)
Wrapper.delete(self) # force children to abandon old groups
Wrapper.size(self, self) # all children are to use our groups
if self.always_show_scrollbars or (self.max_width and self.width > self.max_width):
if self.hscrollbar is None:
self.hscrollbar = HScrollbar(self.max_width)
else:
if self.hscrollbar is not None:
self.hscrollbar.delete()
self.hscrollbar = None
if self.always_show_scrollbars or (self.max_height and self.height > self.max_height):
if self.vscrollbar is None:
self.vscrollbar = VScrollbar(self.max_height)
else:
if self.vscrollbar is not None:
self.vscrollbar.delete()
self.vscrollbar = None
self.width = min(self.max_width or self.width, self.width)
self.content_width = self.width
self.height = min(self.max_height or self.height, self.height)
self.content_height = self.height
if self.hscrollbar is not None:
self.hscrollbar.size(dialog)
self.hscrollbar.set(self.max_width, max(self.content.width, self.max_width))
self.height += self.hscrollbar.height
if self.vscrollbar is not None:
self.vscrollbar.size(dialog)
self.vscrollbar.set(self.max_height, max(self.content.height, self.max_height))
self.width += self.vscrollbar.width
def delete(self):
"""
Delete all graphical elements associated with the Scrollable
"""
Wrapper.delete(self)
if self.hscrollbar is not None:
self.hscrollbar.delete()
self.hscrollbar = None
if self.vscrollbar is not None:
self.vscrollbar.delete()
self.vscrollbar = None
self.root_group = None
self.panel_group = None
self.bg_group = None
self.fg_group = None
self.highlight_group = None
def delete(self):
"""
Delete all graphical elements associated with the Scrollable
"""
Wrapper.delete(self)
if self.hscrollbar is not None:
self.hscrollbar.delete()
self.hscrollbar = None
if self.vscrollbar is not None:
self.vscrollbar.delete()
self.vscrollbar = None
self.root_group = None
self.panel_group = None
self.bg_group = None
self.fg_group = None
self.highlight_group = None
def __init__(self,
content=None,
width=None,
height=None,
is_fixed_size=False,
always_show_scrollbars=False):
"""
Creates a new Scrollable.
@param content The layout or Widget to be scrolled
@param width Maximum width, or None
@param height Maximum height, or None
@param is_fixed_size True if we should always be at maximum size;
otherwise we shrink to match our content
@param always_show_scrollbars True if we should always show scrollbars
"""
if is_fixed_size:
assert width is not None and height is not None
Wrapper.__init__(self, content)
self.max_width = width
self.max_height = height
self.is_fixed_size = is_fixed_size
self.always_show_scrollbars = always_show_scrollbars
self.hscrollbar = None
self.vscrollbar = None
self.content_width = 0
self.content_height = 0
self.content_x = 0
self.content_y = 0
self.hscrollbar_height = 0
self.vscrollbar_width = 0
# We emulate some aspects of Dialog here. We cannot just inherit
# from Dialog because pyglet event handling won't allow keyword
# arguments to be passed through.
self.theme = None
self.batch = None
self.root_group = None
self.panel_group = None
self.bg_group = None
self.fg_group = None
self.highlight_group = None
self.needs_layout = False
def __init__(self, content=None, width=None, height=None,
is_fixed_size=False, always_show_scrollbars=False):
"""
Creates a new Scrollable.
@param content The layout or Widget to be scrolled
@param width Maximum width, or None
@param height Maximum height, or None
@param is_fixed_size True if we should always be at maximum size;
otherwise we shrink to match our content
@param always_show_scrollbars True if we should always show scrollbars
"""
if is_fixed_size:
assert width is not None and height is not None
Wrapper.__init__(self, content)
self.max_width = width
self.max_height = height
self.is_fixed_size = is_fixed_size
self.always_show_scrollbars = always_show_scrollbars
self.hscrollbar = None
self.vscrollbar = None
self.content_width = 0
self.content_height = 0
self.content_x = 0
self.content_y = 0
self.hscrollbar_height = 0
self.vscrollbar_width = 0
# We emulate some aspects of Dialog here. We cannot just inherit
# from Dialog because pyglet event handling won't allow keyword
# arguments to be passed through.
self.theme = None
self.batch = None
self.root_group = None
self.panel_group = None
self.bg_group = None
self.fg_group = None
self.highlight_group = None
self.needs_layout = False
def _get_controls(self):
"""
We represent ourself as a Control to the Dialog, but we pass through
the events we receive from Dialog.
"""
base_controls = Wrapper._get_controls(self)
controls = []
our_left = self.content_x
our_right = our_left + self.content_width
our_bottom = self.content_y
our_top = our_bottom + self.content_height
for control, left, right, top, bottom in base_controls:
controls.append((control, max(left,
our_left), min(right, our_right),
min(top, our_top), max(bottom, our_bottom)))
if self.hscrollbar is not None:
controls += self.hscrollbar._get_controls()
if self.vscrollbar is not None:
controls += self.vscrollbar._get_controls()
return controls
def _get_controls(self):
"""
We represent ourself as a Control to the Dialog, but we pass through
the events we receive from Dialog.
"""
base_controls = Wrapper._get_controls(self)
controls = []
our_left = self.content_x
our_right = our_left + self.content_width
our_bottom = self.content_y
our_top = our_bottom + self.content_height
for control, left, right, top, bottom in base_controls:
controls.append(
(control, max(left, our_left), min(right, our_right), min(top, our_top), max(bottom, our_bottom))
)
if self.hscrollbar is not None:
controls += self.hscrollbar._get_controls()
if self.vscrollbar is not None:
controls += self.vscrollbar._get_controls()
return controls
def size(self, dialog):
"""
Recalculate the size of the Scrollable.
@param dialog Dialog which contains us
"""
if dialog is None:
return
Widget.size(self, dialog)
if self.is_fixed_size:
self.width, self.height = self.max_width, self.max_height
self.hscrollbar_height = \
dialog.theme['hscrollbar']['left']['image'].height
self.vscrollbar_width = \
dialog.theme['vscrollbar']['up']['image'].width
if self.root_group is None: # do we need to re-clone dialog groups?
self.theme = dialog.theme
self.batch = dialog.batch
self.root_group = ScrollableGroup(0,
0,
self.width,
self.height,
parent=dialog.fg_group)
self.panel_group = pyglet.graphics.OrderedGroup(0, self.root_group)
self.bg_group = pyglet.graphics.OrderedGroup(1, self.root_group)
self.fg_group = pyglet.graphics.OrderedGroup(2, self.root_group)
self.highlight_group = pyglet.graphics.OrderedGroup(
3, self.root_group)
Wrapper.delete(self) # force children to abandon old groups
Wrapper.size(self, self) # all children are to use our groups
if self.always_show_scrollbars or \
(self.max_width and self.width > self.max_width):
if self.hscrollbar is None:
self.hscrollbar = HScrollbar(self.max_width)
else:
if self.hscrollbar is not None:
self.hscrollbar.delete()
self.hscrollbar = None
if self.always_show_scrollbars or \
(self.max_height and self.height > self.max_height):
if self.vscrollbar is None:
self.vscrollbar = VScrollbar(self.max_height)
else:
if self.vscrollbar is not None:
self.vscrollbar.delete()
self.vscrollbar = None
self.width = min(self.max_width or self.width, self.width)
self.content_width = self.width
self.height = min(self.max_height or self.height, self.height)
self.content_height = self.height
if self.hscrollbar is not None:
self.hscrollbar.size(dialog)
self.hscrollbar.set(self.max_width,
max(self.content.width, self.max_width))
self.height += self.hscrollbar.height
if self.vscrollbar is not None:
self.vscrollbar.size(dialog)
self.vscrollbar.set(self.max_height,
max(self.content.height, self.max_height))
self.width += self.vscrollbar.width
