def __init__(self, width=0, height=0, focusable=True, theme=None):
self.width = width
self.height = height
self.image = None
if theme is not None:
self.theme = theme
else:
self.theme = menu_config.theme
self.focusable = focusable
self.parent = None
self._position = None
self.menu = None
self.gateway = WidgetGateway(self)
self.crystallized = False
def __init__(self, width=0, height=0, focusable=True, theme=None):
self.width = width
self.height = height
self.image = None
if theme is not None:
self.theme = theme
else:
self.theme = menu_config.theme
self.focusable = focusable
self.parent = None
self._position = None
self.menu = None
self.gateway = WidgetGateway(self)
self.crystallized = False
class Widget(object):
"""
A Widget is a menu component.
Widgets are typically graphic components that can be added to menus,
possibly interactive.
*width* and *height* specify the widget's size in pixels.
*focusable*, if True (default value), will allow cursors to focus that
widget, so that it receives events while focused.
*theme* is a MenuTheme that will be used to render that widget, and
defaults to the default_theme in librpg.config.menu_config.
"""
def __init__(self, width=0, height=0, focusable=True, theme=None):
self.width = width
self.height = height
self.image = None
if theme is not None:
self.theme = theme
else:
self.theme = menu_config.theme
self.focusable = focusable
self.parent = None
self._position = None
self.menu = None
self.gateway = WidgetGateway(self)
self.crystallized = False
def get_surface(self):
"""
*Virtual.*
Return a pygame Surface with the widget's image as it should be
rendered.
"""
if self.image is not None:
return self.image.get_surface()
else:
return None
def draw(self):
"""
*Virtual.*
Render the widget on its `image` attribute.
"""
pass
def render(self, screen, x_offset, y_offset):
surf = self.get_surface()
if surf is not None:
screen.blit(self.get_surface(), (x_offset, y_offset))
def update(self):
"""
*Virtual.*
Update the widget's data. Called every cycle the menu is active.
"""
pass
def update_input(self):
pass
def left_click(self, x, y):
"""
*Virtual.*
Handle a left mouse click event.
Return whether the event was captured.
"""
return False
def right_click(self, x, y):
"""
*Virtual.*
Handle a right mouse click event.
Return whether the event was captured.
"""
return False
def activate(self):
"""
*Virtual.*
Handle an activate event triggered while the widget was focused.
Return whether the event was captured.
"""
# print self, 'activated'
return False
def step(self, direction):
"""
*Virtual.*
Handle a step event triggered while the widget was focused.
Return whether the event was captured.
"""
return False
def crystallize(self, widget_navigator=None):
self.gateway.crystallize(widget_navigator)
def widget_step(self, direction, widget_navigator=None):
return self.gateway.step(direction, widget_navigator)
def __get_position(self):
return self._position
__BAD_SET_POSITION_ARG_ERROR = (
'Widget.position has to take an (x, y[, '
'x_align, y_align]) tuple as parameter, '
'where x_align is in (LEFT, CENTER, RIGHT) '
'and y_align is in (UP, CENTER, DOWN).')
def __set_position(self, pos):
if pos is None or len(pos) == 2:
self._position = pos
else:
x, y = pos[:2]
anchor_x, anchor_y = pos[2:4]
if anchor_x == LEFT:
pass
elif anchor_x == CENTER:
x -= self.width / 2
elif anchor_x == RIGHT:
x -= self.width
else:
raise ValueError(Widget.__BAD_SET_POSITION_ARG_ERROR)
if anchor_y == UP:
pass
elif anchor_y == CENTER:
y -= self.height / 2
elif anchor_y == DOWN:
y -= self.height
else:
raise ValueError(Widget.__BAD_SET_POSITION_ARG_ERROR)
self._position = x, y
position = property(__get_position, __set_position)
"""
The (x, y) widget position inside its Div.
If the widget is not in any Div, the value is None.
"""
def __get_left(self):
return self._position[0]
left = property(__get_left)
"""
The left boundary of the widget relatively to its Div.
"""
def __get_top(self):
return self._position[1]
top = property(__get_top)
"""
The top boundary of the widget relatively to its Div.
"""
def __get_right(self):
return self._position[0] + self.width
right = property(__get_right)
"""
The right boundary of the widget relatively to its Div.
"""
def __get_bottom(self):
return self._position[1] + self.height
bottom = property(__get_bottom)
"""
The bottom boundary of the widget relatively to its Div.
"""
def get_menu_position(self):
"""
Return the (x, y) widget position inside its menu.
If the widget is not in any menu, the return is None.
"""
if self.menu is None:
return None
else:
if self.parent is None:
return (self.x, self.y)
else:
parent_pos = self.parent.get_menu_position()
x = parent_pos[0] + self.left
y = parent_pos[1] + self.top
return (x, y)
def get_center(self):
"""
Return the (x, y) widget center position inside its menu.
If the widget is not in any menu, the return is None.
"""
if self.menu is None:
return None
else:
x, y = self.get_menu_position()
return (x + self.width / 2, y + self.height / 2)
def get_menu_rect(self):
"""
Return the pygame Rect representing the widget's dimensions in its
menu.
If the widget is not in any menu, the return is None.
"""
if self.menu is None:
return None
else:
return pygame.Rect(self.get_menu_position(),
(self.width, self.height))
def get_tree(self):
return [self]
def contains_point(self, pos):
x, y = pos
my_x, my_y = self.get_menu_position()
return (x >= my_x and x < my_x + self.width and y >= my_y
and y < my_y + self.height)
def distance_to_point(self, pos):
x, y = pos
my_left, my_top = self.get_menu_position()
my_right = my_left + self.width
my_bottom = my_top + self.height
if x < my_left:
dx = x - my_left
elif x < my_right:
dx = 0
else:
dx = x - my_right
if y < my_top:
dy = y - my_top
elif y < my_bottom:
dy = 0
else:
dy = y - my_bottom
return math.sqrt(dx**2 + dy**2)
class Widget(object):
"""
A Widget is a menu component.
Widgets are typically graphic components that can be added to menus,
possibly interactive.
*width* and *height* specify the widget's size in pixels.
*focusable*, if True (default value), will allow cursors to focus that
widget, so that it receives events while focused.
*theme* is a MenuTheme that will be used to render that widget, and
defaults to the default_theme in librpg.config.menu_config.
"""
def __init__(self, width=0, height=0, focusable=True, theme=None):
self.width = width
self.height = height
self.image = None
if theme is not None:
self.theme = theme
else:
self.theme = menu_config.theme
self.focusable = focusable
self.parent = None
self._position = None
self.menu = None
self.gateway = WidgetGateway(self)
self.crystallized = False
def get_surface(self):
"""
*Virtual.*
Return a pygame Surface with the widget's image as it should be
rendered.
"""
if self.image is not None:
return self.image.get_surface()
else:
return None
def draw(self):
"""
*Virtual.*
Render the widget on its `image` attribute.
"""
pass
def render(self, screen, x_offset, y_offset):
surf = self.get_surface()
if surf is not None:
screen.blit(self.get_surface(), (x_offset, y_offset))
def update(self):
"""
*Virtual.*
Update the widget's data. Called every cycle the menu is active.
"""
pass
def update_input(self):
pass
def left_click(self, x, y):
"""
*Virtual.*
Handle a left mouse click event.
Return whether the event was captured.
"""
return False
def right_click(self, x, y):
"""
*Virtual.*
Handle a right mouse click event.
Return whether the event was captured.
"""
return False
def activate(self):
"""
*Virtual.*
Handle an activate event triggered while the widget was focused.
Return whether the event was captured.
"""
# print self, 'activated'
return False
def step(self, direction):
"""
*Virtual.*
Handle a step event triggered while the widget was focused.
Return whether the event was captured.
"""
return False
def crystallize(self, widget_navigator=None):
self.gateway.crystallize(widget_navigator)
def widget_step(self, direction, widget_navigator=None):
return self.gateway.step(direction, widget_navigator)
def __get_position(self):
return self._position
__BAD_SET_POSITION_ARG_ERROR = ('Widget.position has to take an (x, y[, '
'x_align, y_align]) tuple as parameter, '
'where x_align is in (LEFT, CENTER, RIGHT) '
'and y_align is in (UP, CENTER, DOWN).')
def __set_position(self, pos):
if pos is None or len(pos) == 2:
self._position = pos
else:
x, y = pos[:2]
anchor_x, anchor_y = pos[2:4]
if anchor_x == LEFT:
pass
elif anchor_x == CENTER:
x -= self.width / 2
elif anchor_x == RIGHT:
x -= self.width
else:
raise ValueError(Widget.__BAD_SET_POSITION_ARG_ERROR)
if anchor_y == UP:
pass
elif anchor_y == CENTER:
y -= self.height / 2
elif anchor_y == DOWN:
y -= self.height
else:
raise ValueError(Widget.__BAD_SET_POSITION_ARG_ERROR)
self._position = x, y
position = property(__get_position, __set_position)
"""
The (x, y) widget position inside its Div.
If the widget is not in any Div, the value is None.
"""
def __get_left(self):
return self._position[0]
left = property(__get_left)
"""
The left boundary of the widget relatively to its Div.
"""
def __get_top(self):
return self._position[1]
top = property(__get_top)
"""
The top boundary of the widget relatively to its Div.
"""
def __get_right(self):
return self._position[0] + self.width
right = property(__get_right)
"""
The right boundary of the widget relatively to its Div.
"""
def __get_bottom(self):
return self._position[1] + self.height
bottom = property(__get_bottom)
"""
The bottom boundary of the widget relatively to its Div.
"""
def get_menu_position(self):
"""
Return the (x, y) widget position inside its menu.
If the widget is not in any menu, the return is None.
"""
if self.menu is None:
return None
else:
if self.parent is None:
return (self.x, self.y)
else:
parent_pos = self.parent.get_menu_position()
x = parent_pos[0] + self.left
y = parent_pos[1] + self.top
return (x, y)
def get_center(self):
"""
Return the (x, y) widget center position inside its menu.
If the widget is not in any menu, the return is None.
"""
if self.menu is None:
return None
else:
x, y = self.get_menu_position()
return (x + self.width / 2, y + self.height / 2)
def get_menu_rect(self):
"""
Return the pygame Rect representing the widget's dimensions in its
menu.
If the widget is not in any menu, the return is None.
"""
if self.menu is None:
return None
else:
return pygame.Rect(self.get_menu_position(), (self.width, self.height))
def get_tree(self):
return [self]
def contains_point(self, pos):
x, y = pos
my_x, my_y = self.get_menu_position()
return (x >= my_x
and x < my_x + self.width
and y >= my_y
and y < my_y + self.height)
def distance_to_point(self, pos):
x, y = pos
my_left, my_top = self.get_menu_position()
my_right = my_left + self.width
my_bottom = my_top + self.height
if x < my_left:
dx = x - my_left
elif x < my_right:
dx = 0
else:
dx = x - my_right
if y < my_top:
dy = y - my_top
elif y < my_bottom:
dy = 0
else:
dy = y - my_bottom
return math.sqrt(dx ** 2 + dy ** 2)
