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fix: EMRTEXT wire layout — ptlReference is POINTL not WmfRect16 #6

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Merged
ronaldtse merged 1 commit into from
Jul 24, 2026
Merged

fix: EMRTEXT wire layout — ptlReference is POINTL not WmfRect16 #6

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15 changes: 4 additions & 11 deletions lib/emf/emr/binary/records/ext_text_out_a.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -7,24 +7,17 @@ module Emf
module Emr
module Binary
module Records
# EMR_EXTTEXTOUTA per MS-EMF 2.3.8.1. Same layout as ExtTextOutW
# except the string is 8-bit ANSI (codepage-dependent) rather
# than UTF-16LE.
# EMR_EXTTEXTOUTA per MS-EMF 2.3.8.1. Same EMRTEXT layout as
# ExtTextOutW except the string is 8-bit ANSI.
class ExtTextOutA < Emf::Emr::Binary::WithBounds
uint32 :i_graphics_mode
float :ex_scale
float :ey_scale
int16 :wmf_rect_left
int16 :wmf_rect_top
int16 :wmf_rect_right
int16 :wmf_rect_bottom
point_l :ptl_reference
uint32 :n_chars
uint32 :off_string
uint32 :f_options
int16 :wmf_rect2_left
int16 :wmf_rect2_top
int16 :wmf_rect2_right
int16 :wmf_rect2_bottom
rectl :rcl
uint32 :off_dx
rest :trailing
end
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23 changes: 10 additions & 13 deletions lib/emf/emr/binary/records/ext_text_out_w.rb
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Expand Up @@ -7,34 +7,31 @@ module Emf
module Emr
module Binary
module Records
# EMR_EXTTEXTOUTW per MS-EMF 2.3.8.2. The layout after the header:
# rclBounds (RECTL, in WithBounds)
# EMR_EXTTEXTOUTW per MS-EMF 2.3.8.2. The EMRTEXT struct follows:
# emr (8 bytes, in WithBounds header)
# rclBounds (16 bytes, in WithBounds)
# iGraphicsMode (uint32)
# exScale (float)
# eyScale (float)
# ref_WmfRect16 (RECT_S: 4 int16 = 8 bytes)
# --- EMRTEXT starts ---
# ptlReference (POINTL: int32 x, int32 y) — text anchor point
# nChars (uint32)
# offString (uint32) — byte offset from record start to string
# offString (uint32) — byte offset from record start
# fOptions (uint32) — ExtTextOutOptions flags
# ref_WmfRect16_2 (RECT_S)
# rcl (RECTL) — clipping rectangle
# offDx (uint32) — byte offset to Dx array
# --- EMRTEXT ends ---
# ...string (UTF-16LE, nChars chars)...
# ...Dx array (uint32 per char)...
class ExtTextOutW < Emf::Emr::Binary::WithBounds
uint32 :i_graphics_mode
float :ex_scale
float :ey_scale
int16 :wmf_rect_left
int16 :wmf_rect_top
int16 :wmf_rect_right
int16 :wmf_rect_bottom
point_l :ptl_reference
uint32 :n_chars
uint32 :off_string
uint32 :f_options
int16 :wmf_rect2_left
int16 :wmf_rect2_top
int16 :wmf_rect2_right
int16 :wmf_rect2_bottom
rectl :rcl
uint32 :off_dx
rest :trailing
end
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