"""
Windows Meta File
"""
from construct import *
wmf_record = Struct("records",
ULInt32("size"), # size in words, including the size, function and params
Enum(ULInt16("function"),
Arc = 0x0817,
Chord = 0x0830,
Ellipse = 0x0418,
ExcludeClipRect = 0x0415,
FloodFill = 0x0419,
IntersectClipRect = 0x0416,
LineTo = 0x0213,
MoveTo = 0x0214,
OffsetClipRgn = 0x0220,
OffsetViewportOrg = 0x0211,
OffsetWindowOrg = 0x020F,
PatBlt = 0x061D,
Pie = 0x081A,
RealizePalette = 0x0035,
Rectangle = 0x041B,
ResizePalette = 0x0139,
RestoreDC = 0x0127,
RoundRect = 0x061C,
SaveDC = 0x001E,
ScaleViewportExt = 0x0412,
ScaleWindowExt = 0x0400,
SetBkColor = 0x0201,
SetBkMode = 0x0102,
SetMapMode = 0x0103,
SetMapperFlags = 0x0231,
SetPixel = 0x041F,
SetPolyFillMode = 0x0106,
SetROP2 = 0x0104,
SetStretchBltMode = 0x0107,
SetTextAlign = 0x012E,
SetTextCharacterExtra = 0x0108,
SetTextColor = 0x0209,
SetTextJustification = 0x020A,
SetViewportExt = 0x020E,
SetViewportOrg = 0x020D,
SetWindowExt = 0x020C,
SetWindowOrg = 0x020B,
_default_ = Pass,
),
Array(lambda ctx: ctx.size - 3, ULInt16("params")),
)
wmf_placeable_header = Struct("placeable_header",
Const(ULInt32("key"), 0x9AC6CDD7),
ULInt16("handle"),
SLInt16("left"),
SLInt16("top"),
SLInt16("right"),
SLInt16("bottom"),
ULInt16("units_per_inch"),
Padding(4),
ULInt16("checksum")
)
wmf_file = Struct("wmf_file",
# --- optional placeable header ---
Optional(wmf_placeable_header),
# --- header ---
Enum(ULInt16("type"),
InMemory = 0,
File = 1,
),
Const(ULInt16("header_size"), 9),
ULInt16("version"),
ULInt32("size"), # file size is in words
ULInt16("number_of_objects"),
ULInt32("size_of_largest_record"),
ULInt16("number_of_params"),
# --- records ---
GreedyRange(wmf_record)
)
if __name__ == "__main__":
obj = wmf_file.parse_stream(open("../../test/wmf1.wmf", "rb"))
print obj
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