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projecten1/lib/python3.6/site-packages/PIL/CurImagePlugin.py

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+#
+# The Python Imaging Library.
+# $Id$
+#
+# Windows Cursor support for PIL
+#
+# notes:
+#       uses BmpImagePlugin.py to read the bitmap data.
+#
+# history:
+#       96-05-27 fl     Created
+#
+# Copyright (c) Secret Labs AB 1997.
+# Copyright (c) Fredrik Lundh 1996.
+#
+# See the README file for information on usage and redistribution.
+#
+
+from __future__ import print_function
+
+from . import Image, BmpImagePlugin
+from ._binary import i8, i16le as i16, i32le as i32
+
+__version__ = "0.1"
+
+#
+# --------------------------------------------------------------------
+
+
+def _accept(prefix):
+    return prefix[:4] == b"\0\0\2\0"
+
+
+##
+# Image plugin for Windows Cursor files.
+
+class CurImageFile(BmpImagePlugin.BmpImageFile):
+
+    format = "CUR"
+    format_description = "Windows Cursor"
+
+    def _open(self):
+
+        offset = self.fp.tell()
+
+        # check magic
+        s = self.fp.read(6)
+        if not _accept(s):
+            raise SyntaxError("not a CUR file")
+
+        # pick the largest cursor in the file
+        m = b""
+        for i in range(i16(s[4:])):
+            s = self.fp.read(16)
+            if not m:
+                m = s
+            elif i8(s[0]) > i8(m[0]) and i8(s[1]) > i8(m[1]):
+                m = s
+            # print("width", i8(s[0]))
+            # print("height", i8(s[1]))
+            # print("colors", i8(s[2]))
+            # print("reserved", i8(s[3]))
+            # print("hotspot x", i16(s[4:]))
+            # print("hotspot y", i16(s[6:]))
+            # print("bytes", i32(s[8:]))
+            # print("offset", i32(s[12:]))
+        if not m:
+            raise TypeError("No cursors were found")
+
+        # load as bitmap
+        self._bitmap(i32(m[12:]) + offset)
+
+        # patch up the bitmap height
+        self.size = self.size[0], self.size[1]//2
+        d, e, o, a = self.tile[0]
+        self.tile[0] = d, (0, 0)+self.size, o, a
+
+        return
+
+
+#
+# --------------------------------------------------------------------
+
+Image.register_open(CurImageFile.format, CurImageFile, _accept)
+
+Image.register_extension(CurImageFile.format, ".cur")