def _load_scrollbars(self, width, height):
# if content size bigger than our size,
# we load a scrollbar
if self.content.width > width:
if self._hscrollbar is None:
self._hscrollbar = HScrollbar(width)
self._hscrollbar.set_manager(self._manager)
self._hscrollbar.parent = self
self._hscrollbar.load()
# if smaller, we unload it if it is loaded
elif self._hscrollbar is not None:
self._hscrollbar.delete()
self._hscrollbar = None
if self.content.height > height:
if self._vscrollbar is None:
self._vscrollbar = VScrollbar(height)
self._vscrollbar.set_manager(self._manager)
self._vscrollbar.parent = self
self._vscrollbar.load()
elif self._vscrollbar is not None:
self._vscrollbar.delete()
self._vscrollbar = None
self._manager.set_wheel_target(None)
def _load_scrollbars(self, width, height):
# if content size bigger than our size,
# we load a scrollbar
if self.content.width > width:
if self._hscrollbar is None:
self._hscrollbar = HScrollbar(width)
self._hscrollbar.set_manager(self._manager)
self._hscrollbar.parent = self
self._hscrollbar.load()
# if smaller, we unload it if it is loaded
elif self._hscrollbar is not None:
self._hscrollbar.delete()
self._hscrollbar = None
if self.content.height > height:
if self._vscrollbar is None:
self._vscrollbar = VScrollbar(height)
self._vscrollbar.set_manager(self._manager)
self._vscrollbar.parent = self
self._vscrollbar.load()
elif self._vscrollbar is not None:
self._vscrollbar.delete()
self._vscrollbar = None
self._manager.set_wheel_target(None)
class Scrollable(Wrapper, Controller, ControllerManager):
def __init__(self, content=None, width=None, height=None, is_fixed_size=False):
if is_fixed_size:
assert width is not None and height is not None
Wrapper.__init__(self, content)
ControllerManager.__init__(self)
self.max_width = width
self.max_height = height
self.is_fixed_size = is_fixed_size
self._hscrollbar = None
self._vscrollbar = None
self._content_width = 0
self._content_height = 0
self._content_x = 0
self._content_y = 0
# We emulate some aspects of Manager here.
self._theme = None
self.batch = None
self.root_group = None
self.group = {'panel': None, 'background': None, 'foreground': None, 'highlight': None}
@Managed.theme.getter
def theme(self):
return self._theme
def set_manager(self, manager):
Controller.set_manager(self, manager)
self._theme = manager.theme
self.batch = manager.batch
self.root_group = ScrollableGroup(0, 0, self.width, self.height, parent=manager.group['foreground'])
self.group['panel'] = pyglet.graphics.OrderedGroup(0, self.root_group)
self.group['background'] = pyglet.graphics.OrderedGroup(10, self.root_group)
self.group['foreground'] = pyglet.graphics.OrderedGroup(20, self.root_group)
self.group['highlight'] = pyglet.graphics.OrderedGroup(30, self.root_group)
self.content.set_manager(self)
self.content.parent = self
def unload_graphics(self):
Wrapper.unload_graphics(self)
if self._hscrollbar is not None:
self._hscrollbar.unload()
self._hscrollbar = None
if self._vscrollbar is not None:
self._vscrollbar.unload()
self._vscrollbar = None
def expand(self, width, height):
if self.content.is_expandable():
if self._vscrollbar is not None:
self._content_width = width
else:
self._content_width = width
if self._hscrollbar is not None:
self._content_height = height
else:
self._content_height = height
self.content.expand(max(self._content_width, self.content.width),
max(self._content_height, self.content.height))
self.width, self.height = width, height
def hit_test(self, x, y):
# We only intercept events for the content region, not for
# the scrollbars. They can handle themselves.
return y >= self._content_y < self._content_y + self._content_height and \
self._content_x <= x < self._content_x + self._content_width
def is_expandable(self):
return True
def _load_scrollbars(self, width, height):
# if content size bigger than our size,
# we load a scrollbar
if self.content.width > width:
if self._hscrollbar is None:
self._hscrollbar = HScrollbar(width)
self._hscrollbar.set_manager(self._manager)
self._hscrollbar.parent = self
self._hscrollbar.load()
# if smaller, we unload it if it is loaded
elif self._hscrollbar is not None:
self._hscrollbar.delete()
self._hscrollbar = None
if self.content.height > height:
if self._vscrollbar is None:
self._vscrollbar = VScrollbar(height)
self._vscrollbar.set_manager(self._manager)
self._vscrollbar.parent = self
self._vscrollbar.load()
elif self._vscrollbar is not None:
self._vscrollbar.delete()
self._vscrollbar = None
self._manager.set_wheel_target(None)
def layout(self):
Wrapper.layout(self)
# Work out the adjusted content width and height
y = self.y
if self._hscrollbar is not None:
self._hscrollbar.set_position(self.x, self.y)
y += self._hscrollbar.height
if self._vscrollbar is not None:
self._vscrollbar.set_position(self.x + self._content_width, y)
# Set the scissor group
self.root_group.x, self.root_group.y = self.x - 1, y - 1
self.root_group.width = self._content_width + 1
self.root_group.height = self._content_height + 1
# Work out the content layout
self._content_x, self._content_y = self.x, y
left = self.x
top = y + self._content_height - self.content.height
if self._hscrollbar:
left -= self._hscrollbar.get_knob_pos()
if self._vscrollbar:
top += self._vscrollbar.get_knob_pos()
self.content.set_position(left, top)
def on_gain_highlight(self):
if self._hscrollbar is not None:
self._manager.set_wheel_hint(self._hscrollbar)
if self._vscrollbar is not None:
self._manager.set_wheel_target(self._vscrollbar)
def on_lose_highlight(self):
self._manager.set_wheel_target(None)
self._manager.set_wheel_hint(None)
def compute_size(self):
content_width, content_height = self.content.compute_size()
width = min(self.max_width or content_width, content_width)
height = min(self.max_height or content_height, content_height)
self._content_width = width
self._content_height = height
# we have to load the scrolls here because they require knowing content size
self._load_scrollbars(width, height)
if self._hscrollbar is not None:
self._hscrollbar.set_knob_size(self._content_width, content_height)
_, scroll_height = self._hscrollbar.compute_size()
height += scroll_height
if self._vscrollbar is not None:
self._vscrollbar.set_knob_size(self._content_height, content_height)
scroll_width, _ = self._vscrollbar.compute_size()
width += scroll_width
return width, height
def reset_size(self, reset_parent=True):
super(Scrollable, self).reset_size(reset_parent)
if self._hscrollbar is not None:
self._hscrollbar.reset_size(reset_parent=False)
if self._vscrollbar is not None:
self._vscrollbar.reset_size(reset_parent=False)
def delete(self):
Wrapper.delete(self)
ControllerManager.delete(self)
class Scrollable(Wrapper, Controller, ControllerManager):
def __init__(self,
content=None,
width=None,
height=None,
is_fixed_size=False):
if is_fixed_size:
assert width is not None and height is not None
Wrapper.__init__(self, content)
ControllerManager.__init__(self)
self.max_width = width
self.max_height = height
self.is_fixed_size = is_fixed_size
self._hscrollbar = None
self._vscrollbar = None
self._content_width = 0
self._content_height = 0
self._content_x = 0
self._content_y = 0
# We emulate some aspects of Manager here.
self._theme = None
self.batch = None
self.root_group = None
self.group = {
'panel': None,
'background': None,
'foreground': None,
'highlight': None
}
@Managed.theme.getter
def theme(self):
return self._theme
def set_manager(self, manager):
Controller.set_manager(self, manager)
self._theme = manager.theme
self.batch = manager.batch
self.root_group = ScrollableGroup(0,
0,
self.width,
self.height,
parent=manager.group['foreground'])
self.group['panel'] = pyglet.graphics.OrderedGroup(0, self.root_group)
self.group['background'] = pyglet.graphics.OrderedGroup(
10, self.root_group)
self.group['foreground'] = pyglet.graphics.OrderedGroup(
20, self.root_group)
self.group['highlight'] = pyglet.graphics.OrderedGroup(
30, self.root_group)
self.content.set_manager(self)
self.content.parent = self
def unload_graphics(self):
Wrapper.unload_graphics(self)
if self._hscrollbar is not None:
self._hscrollbar.unload()
self._hscrollbar = None
if self._vscrollbar is not None:
self._vscrollbar.unload()
self._vscrollbar = None
def expand(self, width, height):
if self.content.is_expandable():
if self._vscrollbar is not None:
self._content_width = width
else:
self._content_width = width
if self._hscrollbar is not None:
self._content_height = height
else:
self._content_height = height
self.content.expand(max(self._content_width, self.content.width),
max(self._content_height, self.content.height))
self.width, self.height = width, height
def hit_test(self, x, y):
# We only intercept events for the content region, not for
# the scrollbars. They can handle themselves.
return y >= self._content_y < self._content_y + self._content_height and \
self._content_x <= x < self._content_x + self._content_width
def is_expandable(self):
return True
def _load_scrollbars(self, width, height):
# if content size bigger than our size,
# we load a scrollbar
if self.content.width > width:
if self._hscrollbar is None:
self._hscrollbar = HScrollbar(width)
self._hscrollbar.set_manager(self._manager)
self._hscrollbar.parent = self
self._hscrollbar.load()
# if smaller, we unload it if it is loaded
elif self._hscrollbar is not None:
self._hscrollbar.delete()
self._hscrollbar = None
if self.content.height > height:
if self._vscrollbar is None:
self._vscrollbar = VScrollbar(height)
self._vscrollbar.set_manager(self._manager)
self._vscrollbar.parent = self
self._vscrollbar.load()
elif self._vscrollbar is not None:
self._vscrollbar.delete()
self._vscrollbar = None
self._manager.set_wheel_target(None)
def layout(self):
Wrapper.layout(self)
# Work out the adjusted content width and height
y = self.y
if self._hscrollbar is not None:
self._hscrollbar.set_position(self.x, self.y)
y += self._hscrollbar.height
if self._vscrollbar is not None:
self._vscrollbar.set_position(self.x + self._content_width, y)
# Set the scissor group
self.root_group.x, self.root_group.y = self.x - 1, y - 1
self.root_group.width = self._content_width + 1
self.root_group.height = self._content_height + 1
# Work out the content layout
self._content_x, self._content_y = self.x, y
left = self.x
top = y + self._content_height - self.content.height
if self._hscrollbar:
left -= self._hscrollbar.get_knob_pos()
if self._vscrollbar:
top += self._vscrollbar.get_knob_pos()
self.content.set_position(left, top)
def on_gain_highlight(self):
if self._hscrollbar is not None:
self._manager.set_wheel_hint(self._hscrollbar)
if self._vscrollbar is not None:
self._manager.set_wheel_target(self._vscrollbar)
def on_lose_highlight(self):
self._manager.set_wheel_target(None)
self._manager.set_wheel_hint(None)
def compute_size(self):
content_width, content_height = self.content.compute_size()
width = min(self.max_width or content_width, content_width)
height = min(self.max_height or content_height, content_height)
self._content_width = width
self._content_height = height
# we have to load the scrolls here because they require knowing content size
self._load_scrollbars(width, height)
if self._hscrollbar is not None:
self._hscrollbar.set_knob_size(self._content_width, content_height)
_, scroll_height = self._hscrollbar.compute_size()
height += scroll_height
if self._vscrollbar is not None:
self._vscrollbar.set_knob_size(self._content_height,
content_height)
scroll_width, _ = self._vscrollbar.compute_size()
width += scroll_width
return width, height
def reset_size(self, reset_parent=True):
super(Scrollable, self).reset_size(reset_parent)
if self._hscrollbar is not None:
self._hscrollbar.reset_size(reset_parent=False)
if self._vscrollbar is not None:
self._vscrollbar.reset_size(reset_parent=False)
def delete(self):
Wrapper.delete(self)
ControllerManager.delete(self)
