コード例 #1
0
    def chunk_AFRM(self, offset, bytes):
        "AFRM -- next frame follows"

        # assertions
        if self.count != 0:
            raise SyntaxError("misplaced AFRM chunk")

        self.show = 1
        self.id = 0
        self.count = 1
        self.repair = None

        s = self.fp.read(bytes)
        if len(s) >= 2:
            self.id = i16(s)
            if len(s) >= 4:
                self.count = i16(s[2:4])
                if len(s) >= 6:
                    self.repair = i16(s[4:6])
                else:
                    self.repair = None

        if Image.DEBUG:
            print("AFRM", self.id, self.count)

        return s
コード例 #2
0
    def chunk_AFRM(self, offset, bytes):
        "AFRM -- next frame follows"

        # assertions
        if self.count != 0:
            raise SyntaxError("misplaced AFRM chunk")

        self.show = 1
        self.id = 0
        self.count = 1
        self.repair = None

        s = self.fp.read(bytes)
        if len(s) >= 2:
            self.id = i16(s)
            if len(s) >= 4:
                self.count = i16(s[2:4])
                if len(s) >= 6:
                    self.repair = i16(s[4:6])
                else:
                    self.repair = None

        if Image.DEBUG:
            print("AFRM", self.id, self.count)

        return s
コード例 #3
0
    def chunk_ADEF(self, offset, bytes):
        "ADEF -- store image"

        # assertions
        if self.count != 0:
            raise SyntaxError("misplaced ADEF chunk")

        self.show = 0
        self.id = 0
        self.count = 1
        self.repair = None

        s = self.fp.read(bytes)
        if len(s) >= 2:
            self.id = i16(s)
            if len(s) >= 4:
                self.count = i16(s[2:4])

        if Image.DEBUG:
            print("ADEF", self.id, self.count)

        return s
コード例 #4
0
    def chunk_ADEF(self, offset, bytes):
        "ADEF -- store image"

        # assertions
        if self.count != 0:
            raise SyntaxError("misplaced ADEF chunk")

        self.show = 0
        self.id = 0
        self.count = 1
        self.repair = None

        s = self.fp.read(bytes)
        if len(s) >= 2:
            self.id = i16(s)
            if len(s) >= 4:
                self.count = i16(s[2:4])

        if Image.DEBUG:
            print("ADEF", self.id, self.count)

        return s
コード例 #5
0
    def chunk_PAST(self, offset, bytes):
        "PAST -- paste one image into another"

        # assertions
        if self.count == 0:
            raise SyntaxError("misplaced PAST chunk")

        if self.repair is not None:
            # we must repair the target image before we
            # start pasting

            # brute force; a better solution would be to
            # update only the dirty rectangles in images[id].
            # note that if images[id] doesn't exist, it must
            # be created

            self.images[self.id] = self.images[self.repair].copy()
            self.repair = None

        s = self.fp.read(bytes)
        im = self.images[i16(s)]
        x, y = i32(s[2:6]), i32(s[6:10])
        bbox = x, y, im.size[0]+x, im.size[1]+y

        if im.mode in ["RGBA"]:
            # paste with transparency
            # FIXME: should handle P+transparency as well
            self.images[self.id].paste(im, bbox, im)
        else:
            # paste without transparency
            self.images[self.id].paste(im, bbox)

        self.action = ("PAST",)
        self.__store()

        return s
コード例 #6
0
    def chunk_PAST(self, offset, bytes):
        "PAST -- paste one image into another"

        # assertions
        if self.count == 0:
            raise SyntaxError("misplaced PAST chunk")

        if self.repair is not None:
            # we must repair the target image before we
            # start pasting

            # brute force; a better solution would be to
            # update only the dirty rectangles in images[id].
            # note that if images[id] doesn't exist, it must
            # be created

            self.images[self.id] = self.images[self.repair].copy()
            self.repair = None

        s = self.fp.read(bytes)
        im = self.images[i16(s)]
        x, y = i32(s[2:6]), i32(s[6:10])
        bbox = x, y, im.size[0]+x, im.size[1]+y

        if im.mode in ["RGBA"]:
            # paste with transparency
            # FIXME: should handle P+transparency as well
            self.images[self.id].paste(im, bbox, im)
        else:
            # paste without transparency
            self.images[self.id].paste(im, bbox)

        self.action = ("PAST",)
        self.__store()

        return s