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"""
"""
import pygame
def subsurface(s,r):
"""Return the subsurface of a surface, with some help, checks.
<pre>subsurface(s,r): return surface</pre>
"""
r = pygame.Rect(r)
if r.x < 0 or r.y < 0:
raise "gui.subsurface: %d %d %s"%(s.get_width(),s.get_height(),r)
w,h = s.get_width(),s.get_height()
if r.right > w:
r.w -= r.right-w
if r.bottom > h:
r.h -= r.bottom-h
return s.subsurface(r)
class ProxySurface:
"""
A surface-like object which smartly handle out-of-area blitting.
<pre>ProxySurface(parent, rect, real_surface=None, offset=(0, 0))</pre>
<p>only one of parent and real_surface should be supplied (non None)</p>
<dl>
<dt>parent<dd>a ProxySurface object
<dt>real_surface<dd>a pygame Surface object
</dl>
<strong>Variables</strong>
<dl>
<dt>mysubsurface<dd>a real and valid pygame.Surface object to be used
for blitting.
<dt>x, y<dd>if the proxy surface is lefter or higher than the parent,
x, y hold the diffs.
<dt>offset<dd>an optional feature which let you scroll the whole blitted
content.
</dl>
"""
def __init__(self, parent, rect, real_surface, offset=(0, 0)):
self.offset = offset
self.x = self.y = 0
if rect[0] < 0: self.x = rect[0]
if rect[1] < 0: self.y = rect[1]
self.real_surface = real_surface
if real_surface == None:
self.mysubsurface = parent.mysubsurface.subsurface(parent.mysubsurface.get_rect().clip(rect))
else:
self.mysubsurface = real_surface.subsurface(real_surface.get_rect().clip(rect))
rect[0], rect[1] = 0, 0
self.rect = rect
def blit(self, s, pos, rect=None):
if rect == None: rect = s.get_rect()
pos = (pos[0] + self.offset[0] + self.x, pos[1] + self.offset[1] + self.y)
self.mysubsurface.blit(s, pos, rect)
def subsurface(self, rect): return ProxySurface(self, pygame.Rect(rect).move(self.offset[0] + self.x, self.offset[1] + self.y),self.real_surface)
def fill(self, color, rect=None):
if rect != None: self.mysubsurface.fill(color, rect)
else: self.mysubsurface.fill(color)
def get_rect(self): return self.rect
def get_width(self): return self.rect[2]
def get_height(self): return self.rect[3]
def get_abs_offset(): return self.rect[:2]
def get_abs_parent(): return self.mysubsurface.get_abs_parent()
def set_clip(self, rect=None):
if rect == None: self.mysubsurface.set_clip()
else:
rect = [rect[0] + self.offset[0] + self.x, rect[1] + self.offset[0] + self.y, rect[2], rect[3]]
self.mysubsurface.set_clip(rect)
class xProxySurface:
"""
A surface-like object which smartly handle out-of-area blitting.
<pre>ProxySurface(parent, rect, real_surface=None, offset=(0, 0))</pre>
<p>only one of parent and real_surface should be supplied (non None)</p>
<dl>
<dt>parent<dd>a ProxySurface object
<dt>real_surface<dd>a pygame Surface object
</dl>
<strong>Variables</strong>
<dl>
<dt>mysubsurface<dd>a real and valid pygame.Surface object to be used
for blitting.
<dt>x, y<dd>if the proxy surface is lefter or higher than the parent,
x, y hold the diffs.
<dt>offset<dd>an optional feature which let you scroll the whole blitted
content.
</dl>
"""
def __init__(self, parent, rect, real_surface, offset=(0, 0)):
self.offset = offset
self.x = self.y = 0
if rect[0] < 0: self.x = rect[0]
if rect[1] < 0: self.y = rect[1]
self.real_surface = real_surface
if real_surface == None:
self.mysubsurface = parent.mysubsurface.subsurface(parent.mysubsurface.get_rect().clip(rect))
else:
self.mysubsurface = real_surface.subsurface(real_surface.get_rect().clip(rect))
rect[0], rect[1] = 0, 0
self.rect = rect
def blit(self, s, pos, rect=None):
if rect == None: rect = s.get_rect()
pos = (pos[0] + self.offset[0] + self.x, pos[1] + self.offset[1] + self.y)
self.mysubsurface.blit(s, pos, rect)
def subsurface(self, rect): return ProxySurface(self, pygame.Rect(rect).move(self.offset[0] + self.x, self.offset[1] + self.y),self.real_surface)
def fill(self, color, rect=None):
if rect != None: self.mysubsurface.fill(color, rect)
else: self.mysubsurface.fill(color)
def get_rect(self): return self.rect
def get_width(self): return self.rect[2]
def get_height(self): return self.rect[3]
def get_abs_offset(): return self.rect[:2]
def get_abs_parent(): return self.mysubsurface.get_abs_parent()
def set_clip(self, rect=None):
if rect == None: self.mysubsurface.set_clip()
else:
rect = [rect[0] + self.offset[0] + self.x, rect[1] + self.offset[0] + self.y, rect[2], rect[3]]
self.mysubsurface.set_clip(rect)
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