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Notes about the use of the OpenDocument format in kword:
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-------------------------------------------------
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* Tables
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In OpenDocument, tables are treated like paragraphs.
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In KWord, tables are either "inline as character" or "at a fixed position".
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This gives three cases:
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+ inline table, alone in its paragraph -> can be saved the OpenDocument way.
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+ inline table with other things in the paragraph -> wrapper frame+textbox needed
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The wrapper frame is marked with a koffice-specific attribute, koffice:is-wrapper-frame="true".
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Upon loading, the wrapper textbox is removed if it doesn't contain anything else.
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+ fixed-position table -> wrapper frame+textbox would be needed here too.
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But anyway those tables are very difficult to handle, and offer nothing
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compared to "putting an inline table in a non-inline textbox", so I have disabled them.
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* Frame behavior on new pages
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KWord supports "What happens on new page: create a new frame and reconnect, no followup, make copy."
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OpenDocument doesn't, but this doesn't matter, it doesn't affect rendering of existing documents, only editing.
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So we save this with a koffice:frame-behavior-on-new-page attribute, possible values:
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followup, copy or none. Default value: copy for header/footers, none otherwise.
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* DTP
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KWord supports both the normal word processing (paragraphs directly inside the body)
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and the page-based DTP mode (page-sequence element).
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* Headers and footers
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OpenDocument supports odd/even headers and footers using "header" and "header-left".
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But for first page header/footer KWord should create a separate page tqlayout,
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this is not done yet (it uses its own tag instead, as a temporary hack).
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Also OpenDocument doesn't allow a different style for header and header-left,
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so they must have the same min-size, border, margins...
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* Columns
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OpenDocument has "number of columns" and "space between columns", so it's OK for kword.
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OOo however also supports columns of different sizes and with different spaces, we can't load that.
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Notes about interoperability with OpenOffice.org-2.0:
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-----------------------------------------------------
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List of bugs in OOo-1.9.113 affecting interoperability:
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- <text:notes-configuration text:note-class="footnote"...> uses 0-based values for text:start-value instead of 1-based (private mail sent)
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- DTP mode not really supported; but even with single page, frames are misplaced (private mail sent)
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- <text:numbered-paragraph> isn't loaded!!! http://www.openoffice.org/issues/show_bug.cgi?id=52127
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List of bugs in OOo-1.9.113 not affecting interoperability:
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- style:text-underline-type="single" is missing for underlined text, only style is specified (code has workaround)
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- display-levels not respected in chapters.odt
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List of features that KWord has, but OOo doesn't have, and which are in the OpenDocument standard:
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- OOo doesn't load nor save the cursor-position processing instruction
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- DTP mode (page-sequence)
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- frame break (we model it with fo:break-after="column" in the paragraph style)
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- copy-frames (probably)
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- hyphenation bool as character property, for more control (probably)
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- diagonal lines in table cells (probably)
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- line style for footnote separator (probably)
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- table templates (probably)
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- DTP mode using the draw:page element (probably)
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- (after 1.0) border around a word or any run of text (probably)
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List of features that KWord doesn't have, and which OpenDocument has:
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(that list would be quite long, but let's list the real-life interoperability problems)
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- lack of section support (changes of page tqlayout, but also changes of column settings
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in the middle of a page)
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We could at least keep section styles and section markers (begin/end),
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so that load+save preserves it.
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- some anchoring options are not supported, e.g. paragraph-anchored frames. We load
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them as page-anchored frames, but this means the placement is wrong, obviously.
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Differences in rendering:
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- In KWord endnotes are right under the end of the text; in OOo they are on a separate page.
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