def render(self, width, height, st, at):

        if renpy.game.less_updates:
            return null_render(self, width, height, st, at)

        if st >= self.time:
            self.events = True
            return render(self.new_widget, width, height, st, at)

        step = st // self.quantum + 1
        visible = self.old_widget

        if step > self.steps:
            step = (self.steps * 2) - step + 1
            visible = self.new_widget
            self.events = True


        rdr = render(visible, width, height, st, at)
        rv = renpy.display.render.Render(rdr.width, rdr.height)

        rv.blit(rdr, (0, 0))

        rv.operation = renpy.display.render.PIXELLATE
        rv.operation_parameter = 2 ** step

        renpy.display.render.redraw(self, 0)

        return rv

    def render(self, width, height, st, at):

        if renpy.game.less_updates:
            return null_render(self, width, height, st, at)
        
        if st >= self.time:
            self.events = True
            return render(self.new_widget, width, height, st, at)

        if st < self.time:
            renpy.display.render.redraw(self, 0)

        alpha = min(255, int(255 * st / self.time))

        bottom = render(self.old_widget, width, height, st, at)
        top = render(self.new_widget, width, height, st, at)
        
        bottom_surface = bottom.pygame_surface(self.alpha)
        top_surface = top.pygame_surface(self.alpha)

        width = min(top.width, bottom.width)
        height = min(top.height, bottom.height)

        def draw(dest, x, y):
            
            dw, dh = dest.get_size()

            w = min(dw, width + x)
            h = min(dh, height + y)

            if w <= 0 or h <= 0:
                return

            renpy.display.module.blend(
                bottom_surface.subsurface((-x, -y, w, h)),
                top_surface.subsurface((-x, -y, w, h)),
                dest.subsurface((0, 0, w, h)),
                alpha)
            
        if self.alpha:

            surf = renpy.display.pgrender.surface((width, height), True)
            draw(surf, 0, 0)
            renpy.display.render.mutated_surface(surf)

            rv = renpy.display.render.Render(width, height)
            rv.blit(surf, (0, 0))

        else:
            rv = renpy.display.render.Render(width, height, draw_func=draw, opaque=True)

        rv.depends_on(top, True)
        rv.depends_on(bottom)
        return rv

    def render(self, width, height, st, at):

        self.width = width
        self.height = height

        if self.update_function is not None:

            redraw = self.update_function(st)

            if redraw is not None:
                renpy.display.render.redraw(self, redraw)
            
        if not self.ignore_time:
            self.displayable_map.clear()
        
        if self.dead_child:
            self.children = [ i for i in self.children if i.live ]

        self.children.sort()

        caches = [ ]

        rv = renpy.display.render.Render(width, height)

        events = False
        
        for i in self.children:

            events |= i.events
            
            cache = i.cache
            r = i.cache.render
            if cache.render is None:
                if cache.st is None:
                    cache.st = st

                cst = st - cache.st

                cache.render = r = render(cache.child, width, height, cst, cst)
                cache.fast = (r.operation == BLIT) and (r.forward is None) and (r.alpha == 1.0)
                rv.depends_on(r)
                
                caches.append(cache)
                

            if cache.fast:
                for child, xo, yo, _focus, _main in r.children:
                    rv.children.append((child,
                                        xo + i.x,
                                        yo + i.y,
                                        False,
                                        False))

            else:
                rv.subpixel_blit(r, (i.x, i.y))

        for i in caches:
            i.render = None
                
        return rv

 def sizeit(pos, width, height, owidth, oheight):
     if pos not in pos_d:
         return owidth, oheight
     
     rend = render(pos_d[pos], width, height, st, at)
     rv = max(owidth, rend.width), max(oheight, rend.height)
     rend.kill()
     return rv

        def place(pos, x, y, w, h):

            if pos not in pos_d:
                return

            d = pos_d[pos]
            i = pos_i[pos]
            rend = render(d, w, h, st, at)
            self.offsets[i] = pos_d[pos].place(rv, x, y, w, h, rend)

    def render(self, width, height, st, at):

        surf = render(self.child, width, height, st, at)

        self.offsets = [ (0, 0) ]

        rv = renpy.display.render.Render(surf.width, surf.height)
        rv.blit(surf, (0, 0))
        
        return rv

    def render(self, width, height, st, at):

        if self.anim_timebase:
            t = at
        else:
            t = st

        child = render(self.child, width, height, st, at)
        cw, ch = child.get_size()

        self.update_position(t, (width, height, cw, ch))

        rv = renpy.display.render.Render(cw, ch)
        rv.blit(child, (0, 0))

        self.offsets = [ (0, 0) ]

        return rv

    def render(self, width, height, st, at):

        color = self.color or self.style.color
        
        rv = Render(width, height)

        if color is None or width <= 0 or height <= 0:
            return rv

        SIZE = 10
        
        si = renpy.display.im.SolidImage(color, SIZE, SIZE)
        sr = render(si, SIZE, SIZE, st, at)

        rv.forward = Matrix2D(1.0 * SIZE / width, 0, 0, 1.0 * SIZE / height)
        rv.reverse = Matrix2D(1.0 * width / SIZE, 0, 0, 1.0 * height / SIZE)
        rv.blit(sr, (0, 0))

        return rv

def wrap_render(child, w, h, st, at):
    rend = render(child, w, h, st, at)
    rv = Render(rend.width, rend.height)
    rv.blit(rend, (0, 0))
    return rv

    def render(self, width, height, st, at):

        child = self.style.child
        if child is None:
            child = self.child

        self.parent_width = width
        self.parent_height = height

        cr = render(child, width, height, st, at)
        cw, ch = cr.get_size()

        rv = Render(cw, ch)
        rv.blit(cr, (0, 0))

        self.w = cw
        self.h = ch

        position = (self.style.xpos, self.style.ypos, self.style.xanchor, self.style.yanchor, self.style.xoffset, self.style.yoffset)

        # If we don't have a position, then look for it in a drag group.
        if (self.x is None) and (self.drag_group is not None) and (self.drag_name is not None):
            if self.drag_name in self.drag_group.positions:
                dgp = self.drag_group.positions[self.drag_name]
                if len(dgp) == 3:
                    self.x, self.y, self.old_position = dgp
                else:
                    self.x, self.y = dgp
                    self.old_position = position

        if self.old_position != position:
            place = True
        elif self.x is None:
            place = True
        else:
            place = False

        # If we don't have a position, run the placement code and use
        # that to compute our placement.
        if place:
            # This is required to get get_placement to work properly.
            self.x = None

            place_x, place_y = self.place(None, 0, 0, width, height, rv)

            self.x = int(place_x)
            self.y = int(place_y)

            self.target_x = None

            self.old_position = position

        if self.target_x is None:
            self.target_x = self.x
            self.target_y = self.y
            self.target_at = at

        # Determine if we need to do the snap animation.
        if at >= self.target_at:
            self.x = self.target_x
            self.y = self.target_y
        else:
            done = (at - self.at) / (self.target_at - self.at)
            self.x = absolute(self.x + done * (self.target_x - self.x))
            self.y = absolute(self.y + done * (self.target_y - self.y))
            redraw(self, 0)

        if self.draggable or self.clicked is not None:

            fx, fy, fw, fh = self.drag_handle

            if isinstance(fx, float):
                fx = int(fx * cw)

            if isinstance(fy, float):
                fy = int(fy * ch)

            if isinstance(fw, float):
                fw = int(fw * cw)

            if isinstance(fh, float):
                fh = int(fh * ch)

            rv.add_focus(self, None, fx, fy, fw, fh, fx, fy, cr.subsurface((fx, fy, fw, fh)))

        self.last_x = self.x
        self.last_y = self.y
        self.at = at

        return rv

    def render(self, width, height, st, at):

        if self.anim_timebase:
            t = at
        else:
            t = st

        if renpy.game.less_updates:
            if self.delay:
                t = self.delay
                if self.repeat:
                    t = t % self.period
            else:
                t = self.period
        elif self.delay and t >= self.delay:
            t = self.delay
            if self.repeat:
                t = t % self.period
        elif self.repeat:
            t = t % self.period
            renpy.display.render.redraw(self, 0)
        else:
            if t > self.period:
                t = self.period
            else:
                renpy.display.render.redraw(self, 0)

        if self.period > 0:
            t /= self.period
        else:
            t = 1

        if self.time_warp:
            t = self.time_warp(t)

        if self.bounce:
            t = t * 2
            if t > 1.0:
                t = 2.0 - t

        child = render(self.child, width, height, st, at)
        cw, ch = child.get_size()

        if self.add_sizes:
            res = self.function(t, (width, height, cw, ch))
        else:
            res = self.function(t)

        res = tuple(res)

        if len(res) == 2:
            self.position = res + (self.style.xanchor, self.style.yanchor)
        else:
            self.position = res

        rv = renpy.display.render.Render(cw, ch)
        rv.blit(child, (0, 0))

        self.offsets = [ (0, 0) ]

        return rv

    def render(self, width, height, st, at):

        # Do we need to adjust the child times due to our being a layer?
        if self.layer_name or (self.layers is not None):
            adjust_times = True
        else:
            adjust_times = False

        minx = self.style.xminimum
        if minx is not None:
            width = max(width, scale(minx, width))

        miny = self.style.yminimum
        if miny is not None:
            height = max(height, scale(miny, height))

        if self.first:

            self.first = False

            if adjust_times:

                it = renpy.game.interface.interact_time

                self.start_times = [ i or it for i in self.start_times ]
                self.anim_times = [ i or it for i in self.anim_times ]

            layout = self.style.box_layout

            if layout is None:
                layout = self.default_layout

            self.layout = layout  # W0201

        else:
            layout = self.layout

        # Handle time adjustment, store the results in csts and cats.
        if adjust_times:
            t = renpy.game.interface.frame_time

            csts = [ t - start for start in self.start_times ]
            cats = [ t - anim for anim in self.anim_times ]

        else:
            csts = [ st ] * len(self.children)
            cats = [ at ] * len(self.children)

        offsets = [ ]

        if layout == "fixed":

            rv = None

            if self.style.order_reverse:
                iterator = zip(reversed(self.children), reversed(csts), reversed(cats))
            else:
                iterator = zip(self.children, csts, cats)

            rv = renpy.display.render.Render(width, height, layer_name=self.layer_name)

            xfit = self.style.xfit
            yfit = self.style.yfit

            fit_first = self.style.fit_first

            if fit_first == "width":
                first_fit_width = True
                first_fit_height = False
            elif fit_first == "height":
                first_fit_width = False
                first_fit_height = True
            elif fit_first:
                first_fit_width = True
                first_fit_height = True
            else:
                first_fit_width = False
                first_fit_height = False

            sizes = [ ]

            for child, cst, cat in iterator:

                surf = render(child, width, height, cst, cat)
                size = surf.get_size()
                sizes.append(size)

                if first_fit_width:
                    width = rv.width = size[0]
                    first_fit_width = False

                if first_fit_height:
                    height = rv.height = size[1]
                    first_fit_height = False

                if surf:
                    offset = child.place(rv, 0, 0, width, height, surf)
                    offsets.append(offset)
                else:
                    offsets.append((0, 0))
#.........这里部分代码省略.........

 def render(self, width, height, st, at):
     cr = render(self.child, width, height, st, at)
     return cr.subsurface(self.rect)

    def render(self, width, height, st, at):

        width = max(self.style.xminimum, width)
        height = max(self.style.yminimum, height)

        image = self.style.child or self.image
        crend = render(image, width, height, st, at)

        sw, sh = crend.get_size()
        sw = int(sw)
        sh = int(sh)

        dw = int(width)
        dh = int(height)

        bw = self.left + self.right
        bh = self.top + self.bottom

        xborder = min(bw, sw - 2, dw)
        if xborder and bw:
            left = self.left * xborder / bw
            right = self.right * xborder / bw
        else:
            left = 0
            right = 0

        yborder = min(bh, sh - 2, dh)
        if yborder and bh:
            top = self.top * yborder / bh
            bottom = self.bottom * yborder / bh
        else:
            top = 0
            bottom = 0

        if renpy.display.draw.info["renderer"] == "sw":
            return self.sw_render(crend, dw, dh, left, top, right, bottom)

        def draw(x0, x1, y0, y1):

            # Compute the coordinates of the left, right, top, and
            # bottom sides of the region, for both the source and
            # destination surfaces.

            # left side.
            if x0 >= 0:
                dx0 = x0
                sx0 = x0
            else:
                dx0 = dw + x0
                sx0 = sw + x0

            # right side.
            if x1 > 0:
                dx1 = x1
                sx1 = x1
            else:
                dx1 = dw + x1
                sx1 = sw + x1

            # top side.
            if y0 >= 0:
                dy0 = y0
                sy0 = y0
            else:
                dy0 = dh + y0
                sy0 = sh + y0

            # bottom side
            if y1 > 0:
                dy1 = y1
                sy1 = y1
            else:
                dy1 = dh + y1
                sy1 = sh + y1

            # Quick exit.
            if sx0 == sx1 or sy0 == sy1:
                return

            # Compute sizes.
            csw = sx1 - sx0
            csh = sy1 - sy0
            cdw = dx1 - dx0
            cdh = dy1 - dy0

            if csw <= 0 or csh <= 0 or cdh <= 0 or cdw <= 0:
                return

            # Get a subsurface.
            cr = crend.subsurface((sx0, sy0, csw, csh))

            # Scale or tile if we have to.
            if csw != cdw or csh != cdh:

                if self.tile:
                    newcr = Render(cdw, cdh)
                    newcr.xclipping = True
                    newcr.yclipping = True

                    for x in xrange(0, cdw, csw):
#.........这里部分代码省略.........

    def render(self, width, height, st, at):

        child = self.style.child
        if child is None:
            child = self.child            
        
        self.parent_width = width
        self.parent_height = height
        
        cr = render(child, width, height, st, at)
        cw, ch = cr.get_size()
        
        rv = Render(cw, ch)
        rv.blit(cr, (0, 0))

        self.w = cw
        self.h = ch

        # If we don't have a position, then look for it in a drag group.
        if (self.x is None) and (self.drag_group is not None) and (self.drag_name is not None):
            if self.drag_name in self.drag_group.positions:                
                self.x, self.y = self.drag_group.positions[self.drag_name]
        
        # If we don't have a position, run the placement code and use
        # that to compute our placement.
        if self.x is None:
            self.x, self.y = self.place(None, 0, 0, width, height, rv)
            self.x = int(self.x)
            self.y = int(self.y)

        if self.target_x is None:
            self.target_x = self.x
            self.target_y = self.y
            self.target_at = at

        # Determine if we need to do the snap animation.
        if at >= self.target_at:
            self.x = self.target_x
            self.y = self.target_y
        else:
            done = (at - self.at) / (self.target_at - self.at)
            self.x = absolute(self.x + done * (self.target_x - self.x))
            self.y = absolute(self.y + done * (self.target_y - self.y))
            redraw(self, 0)

        if self.draggable or self.clicked is not None:
            
            fx, fy, fw, fh = self.drag_handle

            if isinstance(fx, float):
                fx = int(fx * cw)

            if isinstance(fy, float):
                fy = int(fy * ch)

            if isinstance(fw, float):
                fw = int(fw * cw)

            if isinstance(fh, float):
                fh = int(fh * ch)

            rv.add_focus(self, None, fx, fy, fw, fh, fx, fy, cr.subsurface((fx, fy, fw, fh)))

        self.last_x = self.x
        self.last_y = self.y
        self.at = at
        
        return rv

    def render(self, width, height, st, at):

        child = self.style.child
        if child is None:
            child = self.child

        self.parent_width = width
        self.parent_height = height

        cr = render(child, width, height, st, at)
        cw, ch = cr.get_size()

        rv = Render(cw, ch)
        rv.blit(cr, (0, 0))

        self.w = cw
        self.h = ch

        position = (self.style.xpos, self.style.ypos, self.style.xanchor, self.style.yanchor, self.style.xoffset, self.style.yoffset)

        # If we don't have a position, then look for it in a drag group.
        if (self.x is None) and (self.drag_group is not None) and (self.drag_name is not None):
            if self.drag_name in self.drag_group.positions:
                dgp = self.drag_group.positions[self.drag_name]
                if len(dgp) == 3:
                    self.x, self.y, self.old_position = dgp
                else:
                    self.x, self.y = dgp
                    self.old_position = position

        if self.old_position != position:
            place = True
        elif self.x is None:
            place = True
        else:
            place = False

        # If we don't have a position, run the placement code and use
        # that to compute our placement.
        if place:
            # This is required to get get_placement to work properly.
            self.x = None

            place_x, place_y = self.place(None, 0, 0, width, height, rv)

            self.x = int(place_x)
            self.y = int(place_y)

            self.target_x = None

            self.old_position = position

        if self.target_x is None:
            self.target_x = self.x
            self.target_y = self.y
            self.target_at = at

        # Determine if we need to do the snap animation.
        if self.target_at_delay:
            # Snap starts now
            self.target_at = at + self.target_at_delay
            self.target_at_delay = 0
            redraw(self, 0)
        elif at >= self.target_at:
            # Snap complete
            self.x = self.target_x
            self.y = self.target_y
        else:
            # Snap in progress
            done = (at - self.at) / (self.target_at - self.at)
            self.x = absolute(self.x + done * (self.target_x - self.x))
            self.y = absolute(self.y + done * (self.target_y - self.y))
            redraw(self, 0)

        if self.draggable or self.clicked is not None:

            fx, fy, fw, fh = self.drag_handle

            if isinstance(fx, float):
                fx = int(fx * cw)

            if isinstance(fy, float):
                fy = int(fy * ch)

            if isinstance(fw, float):
                fw = int(fw * cw)

            if isinstance(fh, float):
                fh = int(fh * ch)

            mask = self.style.focus_mask

            if mask is True:
                mask = cr.subsurface((fx, fy, fw, fh))
            elif mask is not None:
                try:
                    mask = renpy.display.render.render(mask, fw, fh, st, at)
                except:
                    if callable(mask):
                        mask = mask
#.........这里部分代码省略.........

    def render(self, width, height, st, at):

        # Handle redrawing.
        if self.value is not None:
            redraw = self.value.periodic(st)

            if redraw is not None:
                renpy.display.render.redraw(self, redraw)

        # Store the width and height for the event function to use.
        self.width = width
        self.height = height
        range = self.adjustment.range #@ReservedAssignment
        value = self.adjustment.value
        page = self.adjustment.page

        if range <= 0:
            if self.style.unscrollable == "hide":
                self.hidden = True
                return renpy.display.render.Render(width, height)
            elif self.style.unscrollable == "insensitive":
                self.set_style_prefix("insensitive_", True)

        self.hidden = False

        if self.style.bar_invert ^ self.style.bar_vertical:
            value = range - value

        bar_vertical = self.style.bar_vertical

        if bar_vertical:
            dimension = height
        else:
            dimension = width

        fore_gutter = self.style.fore_gutter
        aft_gutter = self.style.aft_gutter

        active = dimension - fore_gutter - aft_gutter
        if range:
            thumb_dim = active * page / (range + page)
        else:
            thumb_dim = active

        thumb_offset = abs(self.style.thumb_offset)

        if bar_vertical:
            thumb = render(self.style.thumb, width, thumb_dim, st, at)
            thumb_shadow = render(self.style.thumb_shadow, width, thumb_dim, st, at)
            thumb_dim = thumb.height
        else:
            thumb = render(self.style.thumb, thumb_dim, height, st, at)
            thumb_shadow = render(self.style.thumb_shadow, thumb_dim, height, st, at)
            thumb_dim = thumb.width

        # Remove the offset from the thumb.
        thumb_dim -= thumb_offset * 2
        self.thumb_dim = thumb_dim

        active -= thumb_dim

        if range:
            fore_size = active * value / range
        else:
            fore_size = active

        fore_size = int(fore_size)

        aft_size = active - fore_size

        fore_size += fore_gutter
        aft_size += aft_gutter

        rv = renpy.display.render.Render(width, height)

        if bar_vertical:

            if self.style.bar_resizing:
                foresurf = render(self.style.fore_bar, width, fore_size, st, at)
                aftsurf = render(self.style.aft_bar, width, aft_size, st, at)
                rv.blit(thumb_shadow, (0, fore_size - thumb_offset))
                rv.blit(foresurf, (0, 0), main=False)
                rv.blit(aftsurf, (0, height-aft_size), main=False)
                rv.blit(thumb, (0, fore_size - thumb_offset))

            else:
                foresurf = render(self.style.fore_bar, width, height, st, at)
                aftsurf = render(self.style.aft_bar, width, height, st, at)

                rv.blit(thumb_shadow, (0, fore_size - thumb_offset))
                rv.blit(foresurf.subsurface((0, 0, width, fore_size)), (0, 0), main=False)
                rv.blit(aftsurf.subsurface((0, height - aft_size, width, aft_size)), (0, height - aft_size), main=False)
                rv.blit(thumb, (0, fore_size - thumb_offset))

        else:
            if self.style.bar_resizing:
                foresurf = render(self.style.fore_bar, fore_size, height, st, at)
                aftsurf = render(self.style.aft_bar, aft_size, height, st, at)
                rv.blit(thumb_shadow, (fore_size - thumb_offset, 0))
                rv.blit(foresurf, (0, 0), main=False)
#.........这里部分代码省略.........