# WMF/EMF/EMF+ Reader ## Introduction The **emfio** module is used to read **WMF** (Windows Metafile), **EMF** (Enhanced Metafiles) and also **EMF+** (enhanced EMF) files [1], which are binary formats for vector images from Microsoft. These files can contain vector graphics, bitmap components and text. This folder contains `emfio/source/reader` which is used for reading the WMF/EMF/EMF+ files, either directly, or inside a document. For embedding Windows Metafiles inside a document, one can use "Insert -> Picture -> From File" to put such a file into the document. It is possible to export the Windows Metafile by using right click and choose "save". Most of the records of WMF/EMF formats come from the Windows Graphics Device. For Interface (GDI) API and EMF+ they come from the newer Windows GDI+. More information about rendering Windows Metafiles can be found in the [Visual Class Library (VCL)](../vcl) and also in the [GDIMetaFile](../vcl/README.GDIMetaFile) documentation. An example demo that renders a metafile using `vcl` be seen by invoking: ./bin/run mtfdemo odk/examples/basic/forms_and_controls/burger.wmf This opens the burger.wmf file from the ODK examples. It is also possible to dump metaactions created as the intermediary format before rendering the metafile using: ./bin/run mtfdemo -d odk/examples/basic/forms_and_controls/burger.wmf If the command is successful, this message will be shown, and metadump.xml will be put in the current folder: "Dumped metaactions as metadump.xml" The demo code structure is described in [GDIMetaFile](../vcl/README.GDIMetaFile) documentation. [1] [Windows Meta File](https://en.wikipedia.org/wiki/Windows\_Metafile), Wikipedia ## EMF+ Specifics Handling EMF+ is to some extent different from handling WMF/EMF. More information can be found in the [VCL](../vcl) documentation. ## How does it work? `emfio` module takes a byte array and turns it into a `drawinglayer` primitive container. The rendering is done via `drawinglayer` primitives. For more information, you should refer to [VCL](../vcl) documentation. The drawinglayer primitives created to draw the emf/wmf files can be dumped as xml for debugging purposes. For more information, please refer to the [drawinglayer](../drawyinglayer) documentation. ## Limitations Not all the WMF/EMF/EMF+ records are supported by this module. Unsupported records are marked as "not implemented", and a warning message will printed if they are actually read within a file. You can file a bug report for implementing these records. Currently, these records are not implemented for WMF (specified in `wmfreader.cxx`): ``` W_META_SETRELABS W_META_SETPOLYFILLMODE W_META_SETSTRETCHBLTMODE W_META_SETTEXTCHAREXTRA W_META_SETTEXTJUSTIFICATION W_META_FLOODFILL W_META_FILLREGION W_META_FRAMEREGION W_META_INVERTREGION W_META_PAINTREGION W_META_DRAWTEXT W_META_SETMAPPERFLAGS W_META_SETDIBTODEV W_META_REALIZEPALETTE W_META_ANIMATEPALETTE W_META_SETPALENTRIES W_META_RESIZEPALETTE W_META_EXTFLOODFILL W_META_RESETDC W_META_STARTDOC W_META_STARTPAGE W_META_ENDPAGE W_META_ABORTDOC W_META_ENDDOC ``` And these records are not implemented for EMF/EMF+ (specified in `emfreader.cxx`): ``` EMR_MASKBLT EMR_PLGBLT EMR_SETDIBITSTODEVICE EMR_FRAMERGN EMR_INVERTRGN EMR_FLATTENPATH EMR_WIDENPATH EMR_POLYDRAW EMR_SETPALETTEENTRIES EMR_RESIZEPALETTE EMR_EXTFLOODFILL EMR_ANGLEARC EMR_SETCOLORADJUSTMENT EMR_POLYDRAW16 EMR_CREATECOLORSPACE EMR_SETCOLORSPACE EMR_DELETECOLORSPACE EMR_GLSRECORD EMR_GLSBOUNDEDRECORD EMR_PIXELFORMAT EMR_DRAWESCAPE EMR_EXTESCAPE EMR_STARTDOC EMR_SMALLTEXTOUT EMR_FORCEUFIMAPPING EMR_NAMEDESCAPE EMR_COLORCORRECTPALETTE EMR_SETICMPROFILEA EMR_SETICMPROFILEW EMR_TRANSPARENTBLT EMR_TRANSPARENTDIB EMR_GRADIENTFILL EMR_SETLINKEDUFIS EMR_SETMAPPERFLAGS EMR_SETICMMODE EMR_CREATEMONOBRUSH EMR_SETBRUSHORGEX EMR_SETMETARGN EMR_SETMITERLIMIT EMR_EXCLUDECLIPRECT EMR_REALIZEPALETTE EMR_SELECTPALETTE EMR_CREATEPALETTE EMR_ALPHADIBBLEND EMR_SETTEXTJUSTIFICATION ``` Due to the difference on the fonts available on various platforms, the outcome of text rendering can be different on Linux, Windows, macOS and elsewhere. ## Known Bugs Known remaining bugs for this module is gathered here: * [Bug 103859 \[META\] EMF/WMF (Enhanced/Windows Metafile) bugs and enhancements](https://bugs.documentfoundation.org/show\_bug.cgi?id=103859) ## Dependencies The direct dependency for **emfio** is [**drawinglayer**](../drawinglayer). The complete list of dependencies including the indirect dependencies is as below: ``` basegfx drawinglayer cppu cppuhelper sal comphelper tl salhelper vcl svt utl ``` ## Tools Several tools are available for inspecting WMF/EMF/EMF+ files, which are binary formats. Some of them are: * [mso-dumper](https://git.libreoffice.org/mso-dumper/): Reads and dumps various binary formats from Microsoft including WMF/EMF/EMF+. The output is in a custom XML format. emf-dump.py and wmf-dump.py are usable. * [RE-lab (Formerly OLEToy)](https://github.com/renyxa/re-lab): Reads, dumps and modifies several binary formats from Microsoft including WMF/EMF/EMF+, and also other companies. * [EMF+ diagnostics reporting tool](https://github.com/chrissherlock/emfplus-decoder) * [limerest](https://gitlab.com/re-lab-project/limerest): A new gui tool based on OLEToy for working with various binary formats ## Related Software * [libemf](http://libemf.sourceforge.net/) * [libwmf](https://github.com/caolanm/libwmf) ## References Documentation for WMF/EMF/EMF+ formats are available on Microsoft website: * [\[MS-WMF\]: Windows Metafile Format](https://docs.microsoft.com/en-us/openspecs/windows\_protocols/ms-wmf/4813e7fd-52d0-4f42-965f-228c8b7488d2) * [\[MS-EMF\]: Enhanced Metafile Format](https://docs.microsoft.com/en-us/openspecs/windows\_protocols/ms-emf/91c257d7-c39d-4a36-9b1f-63e3f73d30ca) * [\[MS-EMFPLUS\]: Enhanced Metafile Format Plus Extensions](https://docs.microsoft.com/en-us/openspecs/windows\_protocols/ms-emfplus/5f92c789-64f2-46b5-9ed4-15a9bb0946c6) LibreOffice 核心代码仓库文档基金会
summaryrefslogtreecommitdiff
path: root/ridljar/JunitTest_java.mk
AgeCommit message (Expand)Author
2020-05-06Move all public Java classes to libreoffice.jarSamuel Mehrbrodt
2020-02-10Cleanup: Move unit tests to ridljarSamuel Mehrbrodt