class Tile(object):
"""Tile objects allow storage and manipulation of image tiles.
Constructor: Tile(Image or QImage)
"""
def __init__(self, image):
"""Create a new tile with the given image."""
if image.__class__ is ImageQt or type(image) is QtGui.QImage:
self.__image = image
else:
self.__image = ImageQt(image)
def crop(self, bbox):
"""Return the region of the tile contained in the bounding box `bbox`
(x1,y1,x2,y2).
crop(tuple<int,int,int,int>) -> Tile
"""
x, y, x2, y2 = bbox
w = x2 - x
h = y2 - y
return Tile(self.__image.copy(x, y, w, h))
def resize(self, width, height):
"""Return a resized copy of the tile.
resize(int, int) -> Tile
"""
return Tile(self.__image.scaled(width, height,
QtCore.Qt.IgnoreAspectRatio,
QtCore.Qt.SmoothTransformation))
def save(self, filename):
"""Save the tile to the location given by `filename`.
save(string) -> None
"""
self.__image.save(filename)
def draw(self, painter, x, y):
"""Draw the tile on the given `painter` at the given position.
paint(QPainter, int, int) -> None
"""
painter.drawImage(x, y, self.__image)
@property
def size(self):
"""The dimensions of the tile."""
return (self.__image.width(), self.__image.height())
def __init__(self, image):
"""Create a new tile with the given image."""
if image.__class__ is ImageQt or type(image) is QtGui.QImage:
self.__image = image
else:
self.__image = ImageQt(image)
