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Noel Grandin 21734247d5 drop internal support for 1-bit images 
on modern hardware, these are less efficient than regular alpha
channels.

Also, this greatly simplies the range of stuff that vcl needs to deal
with, which will make the upcoming transparency->alpha patch easier to
deal with.

Enhance vcl::CreateFromData to convert incoming 1-bit data to 8-bit
image.

Change-Id: I35829da750029fe373d0d2911a669d10bab6ad23
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/145321
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
2023-01-12 06:52:42 +00:00
..
inc loplugin:unusedfields make some fields private 2022-11-24 07:00:02 +01:00
qa/cppunit CppunitTest_lotuswordpro_import_test: inherit from UnoApiTest 2022-11-01 12:33:55 +01:00
source/filter drop internal support for 1-bit images 2023-01-12 06:52:42 +00:00
util
CppunitTest_lotuswordpro_import_test.mk UnoApiTest: simplify code by using tempfile member 2022-11-08 11:54:22 +01:00
CppunitTest_lotuswordpro_test_lotuswordpro.mk
IwyuFilter_lotuswordpro.yaml replace usage of blacklist with excludelist for IWYU 2020-07-10 02:03:40 +02:00
Library_lwpft.mk Generally determine Rdb content from gb_*_set_componentfile calls 2021-12-10 08:14:24 +01:00
Makefile
Module_lotuswordpro.mk
README.md tdf#112626 lotuswordpro: switch to constexpr and update documentation 2022-07-14 10:32:23 +02:00

README.md

Import Filter for File Format of Lotus Word Pro (lwp)

Description

⚠️ Import Filter supports only Lotus Word Pro 97 and next versions

The import is not direct, but via an intermediate format: StarOffice XML, the predecessor of ODF (yes, the code is old). The entry point to the filter is class LotusWordProImportFilter (refer to Source code section), but that just hooks up the necessary machinery for processing StarOffice XML produced by the filter. The real fun starts in function ReadWordproFile() (source/filter/lwpfilter.cxx); this function initializes the parser (class Lwp9Reader) and the SAX XML handler that produces the output (class XFSaxStream). The Lwp9Reader class then does the actual parsing.

If the module is built with debug level greater than 0, it is possible to examine the intermediate XML: set environment variable DBG_LWPIMPORT_DIR= to an existing directory. During opening an .lwp document, a file named lwpimport.xml will be created in DBG_LWPIMPORT_DIR directory.

Source Code

Module Contents

  • inc: module-global headers (can be included by any file in source)
  • qa: cppunit tests
  • source: the filter itself
  • util: UNO passive registration config

Source Contents

  • filter: lwp document format parser
  • filter/LotusWordProImportFilter.cxx: the entry point to the filter
  • filter/xfilter: export to StarOffice XML