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offtkp e9c50fbbc3 tdf#103954: Z compressed graphic formats support for EMF/WMF 
- Added .emz and .wmz file opening support
- Added a function to check for Z compression that
all z comp. formats can use
- Added 3 unit tests for emf/emz/wmz files
and the example files have been checked with
a different tool (File Viewer 4)
- emf/emz file detection changed from magic byte checking
to extension checking, like wmf/wmz does

Change-Id: I3e433fd23d18482648a51cd04b8f467368e97b62
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/132456
Tested-by: Jenkins
Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>
2022-05-06 04:02:05 +02:00
..
inc Recheck modules [e-f]* with IWYU 2022-01-17 01:33:35 +01:00
qa Just use Any ctor instead of makeAny in filter 2022-05-04 14:09:58 +02:00
source tdf#103954: Z compressed graphic formats support for EMF/WMF 2022-05-06 04:02:05 +02:00
uiconfig/ui this should be a normal dialog type 2022-01-26 18:04:23 +01:00
AllLangMoTarget_flt.mk
Configuration_filter.mk support for the WebP image format (tdf#114532) 2022-01-31 10:44:29 +01:00
CppunitTest_filter_dialogs_test.mk
CppunitTest_filter_msfilter.mk
CppunitTest_filter_pdf.mk filter: allow PDF export to sign from the cmdline 2022-02-03 21:06:20 +01:00
CppunitTest_filter_priority.mk
CppunitTest_filter_svg.mk sw SVG export: try to reuse original bitmap data for JPG and PNG bitmaps 2020-02-27 10:33:24 +01:00
CppunitTest_filter_textfilterdetect.mk tdf#139991: move 0-byte file handling to SfxFrameLoader_Impl::load 2022-04-13 15:46:59 +02:00
CppunitTest_filter_xslt.mk
CustomTarget_svg.mk
IwyuFilter_filter.yaml tdf#42949 Fix new IWYU warnings in directories [e-f]* 2020-11-12 10:53:07 +01:00
JunitTest_filter_complex.mk
Library_filterconfig.mk Generally determine Rdb content from gb_*_set_componentfile calls 2021-12-10 08:14:24 +01:00
Library_graphicfilter.mk Generally determine Rdb content from gb_*_set_componentfile calls 2021-12-10 08:14:24 +01:00
Library_icg.mk gbuild: introduce plugin + loader concepts 2021-12-01 18:37:23 +01:00
Library_msfilter.mk Generally determine Rdb content from gb_*_set_componentfile calls 2021-12-10 08:14:24 +01:00
Library_odfflatxml.mk Generally determine Rdb content from gb_*_set_componentfile calls 2021-12-10 08:14:24 +01:00
Library_pdffilter.mk Split BasePrimitive2D UNO interface into separate object 2021-12-23 11:45:33 +01:00
Library_storagefd.mk Generally determine Rdb content from gb_*_set_componentfile calls 2021-12-10 08:14:24 +01:00
Library_svgfilter.mk Separate core drawinglayer func. into drawinglayercore library 2021-12-22 12:10:10 +01:00
Library_t602filter.mk Generally determine Rdb content from gb_*_set_componentfile calls 2021-12-10 08:14:24 +01:00
Library_textfd.mk Generally determine Rdb content from gb_*_set_componentfile calls 2021-12-10 08:14:24 +01:00
Library_xmlfa.mk Generally determine Rdb content from gb_*_set_componentfile calls 2021-12-10 08:14:24 +01:00
Library_xmlfd.mk Generally determine Rdb content from gb_*_set_componentfile calls 2021-12-10 08:14:24 +01:00
Library_xsltdlg.mk Generally determine Rdb content from gb_*_set_componentfile calls 2021-12-10 08:14:24 +01:00
Library_xsltfilter.mk Generally determine Rdb content from gb_*_set_componentfile calls 2021-12-10 08:14:24 +01:00
Makefile
Module_filter.mk filter: allow PDF export to sign from the cmdline 2022-02-03 21:06:20 +01:00
Package_docbook.mk gbuild: set Package default target to INSTDIR 2013-10-28 20:17:26 +01:00
Package_xhtml.mk
Package_xslt.mk
README.md Updated README.md files to represent current code / use Markdown format 2021-04-07 17:47:16 +02:00
UIConfig_filter.mk Drop Macromedia Flash export filter 2020-04-23 16:16:12 +02:00

README.md

LibreOffice Filters

Filter registration and some simple filters (also descriptions).

Desperate splitting of code into small shared libraries for historical reasons presumably (OS/2 and Windows 3.x). The libraries produced from the code in each subdirectory of filter/source/graphicfilter are graphic format import or export filters. But they don't have uniform API. Some have either a GraphicImport or GraphicExport entry point, and are loaded and used in a uniform fashion from code in svtools/source/filter/filter.cxx. Others have different API and are loaded from other places. For instance icgm has ImportCGM, and is loaded and used by sd/source/filter/cgm/sdcgmfilter.cxx (!). Svgreader is used for "File -> Open" and then to choose the svg file. For "Insert -> Picture -> From File", see svgio/source/svgreader directory.

Filter Configuration

The filter configuration consists of two parts, the type definition in filter/source/config/fragments/types/ and the actual filter definition in filter/source/config/fragments/filters/.

Each file type e.g. text file should be represented by exactly one type definition. This type can then be referenced by several different filters, e.g. calc text, writer text.