strepsirrhini/office-gobmx
9
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions
office-gobmx/sc
History
Michael Weghorn c2d6ae1781 tdf#157299 sc a11y: Limit amount of reported cell relations 
For the cells referenced in formulae, the a11y `CONTROLLED_BY`
relation is reported.

Since formulae can reference a large amount of cells, creating
the a11y objects for each of these cells can result in Calc freezing,
e.g. for the tdf#157299 `SUMIF` example that was referencing a whole
column (containing 1048576 cells).

Prevent that by limiting the maximimum amount of cells to handle
here to 1000, and just printing a warning to the log otherwise
and ignore cell ranges having more cells.

If there's a need to increase the limit, that should be possible
within certain bounds. My test with a modified SUMIF that just
uses 999 cells wasn't causing any noticeable delay and the
relations were shown in Accerciser as expected.

From a quick look at the Orca and NVDA source code,
they currently don't seem to make use of the
`CONTROLLED_BY` relation for LibreOffice at all.

Change-Id: Ia74e0e88d9dbd7650832664b9c027262367b428e
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/157265
Tested-by: Jenkins
Reviewed-by: Michael Weghorn <m.weghorn@posteo.de>
2023-09-26 12:05:59 +02:00
..
inc loplugin:unusedmethods 2023-09-24 18:32:29 +02:00
qa tdf#148959 cui: fix hiding semi-transparent UI for chart axis font 2023-09-26 08:18:22 +02:00
res/xml
sdi
source tdf#157299 sc a11y: Limit amount of reported cell relations 2023-09-26 12:05:59 +02:00
uiconfig/scalc tdf#122718 Add search functionality to the Functions sidebar 2023-09-15 13:25:49 +02:00
util
workben
AllLangMoTarget_sc.mk
common_unoapi_tests.mk
CppunitTest_sc_a11y.mk
CppunitTest_sc_addin_functions_test.mk
CppunitTest_sc_anchor_test.mk
CppunitTest_sc_annotationobj.mk
CppunitTest_sc_annotationshapeobj.mk
CppunitTest_sc_annotationsobj.mk
CppunitTest_sc_arealinkobj.mk
CppunitTest_sc_arealinksobj.mk
CppunitTest_sc_array_functions_test.mk
CppunitTest_sc_autoformatobj.mk
CppunitTest_sc_autoformatsobj.mk
CppunitTest_sc_cache_test.mk
CppunitTest_sc_cellcursorobj.mk
CppunitTest_sc_cellfieldsobj.mk
CppunitTest_sc_cellformatsenumeration.mk
CppunitTest_sc_cellformatsobj.mk
CppunitTest_sc_cellobj.mk
CppunitTest_sc_cellrangeobj.mk
CppunitTest_sc_cellrangesobj.mk
CppunitTest_sc_cellsearchobj.mk
CppunitTest_sc_cellsenumeration.mk
CppunitTest_sc_cellsobj.mk
CppunitTest_sc_chart2dataprovider.mk
CppunitTest_sc_chartobj.mk
CppunitTest_sc_chartsobj.mk
CppunitTest_sc_check_data_pilot_field.mk
CppunitTest_sc_check_data_pilot_table.mk
CppunitTest_sc_check_xcell_ranges_query.mk
CppunitTest_sc_cond_format_merge.mk
CppunitTest_sc_consolidationdescriptorobj.mk
CppunitTest_sc_copypaste.mk
CppunitTest_sc_core.mk
CppunitTest_sc_database_functions_test.mk
CppunitTest_sc_databaserangeobj.mk
CppunitTest_sc_databaserangesobj.mk
CppunitTest_sc_datapilotfieldgroupitemobj.mk
CppunitTest_sc_datapilotfieldgroupobj.mk
CppunitTest_sc_datapilotfieldgroupsobj.mk
CppunitTest_sc_datapilotfieldobj.mk
CppunitTest_sc_datapilotfieldsobj.mk
CppunitTest_sc_datapilotitemobj.mk
CppunitTest_sc_datapilotitemsobj.mk
CppunitTest_sc_datapilottableobj.mk
CppunitTest_sc_datapilottablesobj.mk
CppunitTest_sc_dataprovider.mk Use less boost external headers dependency in sc 2023-09-20 08:09:30 +02:00
CppunitTest_sc_datetime_functions_test.mk
CppunitTest_sc_ddelinkobj.mk
CppunitTest_sc_ddelinksobj.mk
CppunitTest_sc_documentconfigurationobj.mk
CppunitTest_sc_drawpageobj.mk
CppunitTest_sc_drawpagesobj.mk
CppunitTest_sc_editfieldobj_cell.mk
CppunitTest_sc_editfieldobj_header.mk
CppunitTest_sc_filterdescriptorbase.mk
CppunitTest_sc_filters_test.mk
CppunitTest_sc_financial_functions_test.mk
CppunitTest_sc_functiondescriptionobj.mk
CppunitTest_sc_functionlistobj.mk
CppunitTest_sc_functions_test_old.mk
CppunitTest_sc_headerfieldsobj.mk
CppunitTest_sc_headerfootercontentobj.mk
CppunitTest_sc_html_export_test.mk
CppunitTest_sc_importdescriptorbaseobj.mk
CppunitTest_sc_indexenumeration_cellannotationsenumeration.mk
CppunitTest_sc_indexenumeration_cellarealinksenumeration.mk
CppunitTest_sc_indexenumeration_databaserangesenumeration.mk
CppunitTest_sc_indexenumeration_datapilotfieldsenumeration.mk
CppunitTest_sc_indexenumeration_datapilotitemsenumeration.mk
CppunitTest_sc_indexenumeration_datapilottablesenumeration.mk
CppunitTest_sc_indexenumeration_ddelinksenumeration.mk
CppunitTest_sc_indexenumeration_functiondescriptionenumeration.mk
CppunitTest_sc_indexenumeration_labelrangesenumeration.mk
CppunitTest_sc_indexenumeration_namedrangesenumeration.mk
CppunitTest_sc_indexenumeration_scenariosenumeration.mk
CppunitTest_sc_indexenumeration_sheetcellrangesenumeration.mk
CppunitTest_sc_indexenumeration_sheetlinksenumeration.mk
CppunitTest_sc_indexenumeration_spreadsheetsenumeration.mk
CppunitTest_sc_indexenumeration_spreadsheetviewpanesenumeration.mk
CppunitTest_sc_indexenumeration_subtotalfieldsenumeration.mk
CppunitTest_sc_indexenumeration_tableautoformatenumeration.mk
CppunitTest_sc_indexenumeration_tablechartsenumeration.mk
CppunitTest_sc_indexenumeration_tablecolumnsenumeration.mk
CppunitTest_sc_indexenumeration_tableconditionalentryenumeration.mk
CppunitTest_sc_indexenumeration_tablerowsenumeration.mk
CppunitTest_sc_indexenumeration_textfieldenumeration.mk
CppunitTest_sc_information_functions_test.mk
CppunitTest_sc_jumbosheets_test.mk
CppunitTest_sc_labelrangeobj.mk
CppunitTest_sc_labelrangesobj.mk
CppunitTest_sc_logical_functions_test.mk
CppunitTest_sc_macros_test.mk
CppunitTest_sc_mark_test.mk
CppunitTest_sc_mathematical_functions_test.mk
CppunitTest_sc_modelobj.mk
CppunitTest_sc_namedrangeobj.mk
CppunitTest_sc_namedrangesobj.mk
CppunitTest_sc_new_cond_format_api.mk
CppunitTest_sc_opencl-1.mk
CppunitTest_sc_opencl-2.mk
CppunitTest_sc_outlineobj.mk
CppunitTest_sc_pdf_export.mk
CppunitTest_sc_perfobj.mk
CppunitTest_sc_pivottable_filters_test.mk
CppunitTest_sc_recentfunctionsobj.mk
CppunitTest_sc_recordchanges.mk
CppunitTest_sc_scenariosobj.mk
CppunitTest_sc_screenshots.mk
CppunitTest_sc_shapeobj.mk
CppunitTest_sc_shapetest.mk
CppunitTest_sc_sheetlinkobj.mk
CppunitTest_sc_sheetlinksobj.mk
CppunitTest_sc_sortdescriptorbaseobj.mk
CppunitTest_sc_sparkline_test.mk
CppunitTest_sc_spreadsheet_functions_test.mk
CppunitTest_sc_spreadsheetsettings.mk
CppunitTest_sc_spreadsheetsettingsobj.mk
CppunitTest_sc_statistical_functions_test.mk
CppunitTest_sc_stylefamiliesobj.mk
CppunitTest_sc_stylefamilyobj.mk
CppunitTest_sc_styleobj.mk
CppunitTest_sc_subsequent_export_test.mk
CppunitTest_sc_subsequent_export_test2.mk
CppunitTest_sc_subsequent_export_test3.mk
CppunitTest_sc_subsequent_export_test4.mk
CppunitTest_sc_subsequent_filters_test.mk
CppunitTest_sc_subsequent_filters_test2.mk
CppunitTest_sc_subsequent_filters_test3.mk
CppunitTest_sc_subsequent_filters_test4.mk
CppunitTest_sc_subtotaldescriptorbase.mk
CppunitTest_sc_subtotalfieldobj.mk
CppunitTest_sc_tablecolumnobj.mk
CppunitTest_sc_tablecolumnsobj.mk
CppunitTest_sc_tableconditionalentryobj.mk
CppunitTest_sc_tableconditionalformat.mk
CppunitTest_sc_tablerowobj.mk
CppunitTest_sc_tablerowsobj.mk
CppunitTest_sc_tablesheetobj.mk
CppunitTest_sc_tablesheetsobj.mk
CppunitTest_sc_tablevalidationobj.mk
CppunitTest_sc_tabviewobj.mk
CppunitTest_sc_text_functions_test.mk
CppunitTest_sc_theme_import_export_test.mk
CppunitTest_sc_tiledrendering.mk
CppunitTest_sc_ucalc.mk
CppunitTest_sc_ucalc_condformat.mk
CppunitTest_sc_ucalc_copypaste.mk
CppunitTest_sc_ucalc_datatransformation.mk
CppunitTest_sc_ucalc_document_themes.mk
CppunitTest_sc_ucalc_formula.mk
CppunitTest_sc_ucalc_formula2.mk
CppunitTest_sc_ucalc_parallelism.mk
CppunitTest_sc_ucalc_pivottable.mk
CppunitTest_sc_ucalc_range.mk
CppunitTest_sc_ucalc_rangelst.mk
CppunitTest_sc_ucalc_sharedformula.mk
CppunitTest_sc_ucalc_solver.mk
CppunitTest_sc_ucalc_sort.mk
CppunitTest_sc_ucalc_sparkline.mk
CppunitTest_sc_uicalc.mk
CppunitTest_sc_uicalc2.mk
CppunitTest_sc_uniquecellformatsenumeration.mk
CppunitTest_sc_uniquecellformatsobj.mk
CppunitTest_sc_vba_macro_test.mk
CppunitTest_sc_viewpaneobj.mk
functions_setup.mk
IwyuFilter_sc.yaml
JunitTest_sc_complex.mk
JunitTest_sc_unoapi_1.mk
JunitTest_sc_unoapi_2.mk
JunitTest_sc_unoapi_3.mk
JunitTest_sc_unoapi_4.mk
JunitTest_sc_unoapi_6.mk
JunitTest_sc_unoapi_7.mk
Library_sc.mk
Library_scd.mk
Library_scfilt.mk Use less boost external headers dependency in sc 2023-09-20 08:09:30 +02:00
Library_scqahelper.mk
Library_scui.mk
Library_vbaobj.mk
Makefile
Module_sc.mk
Package_opencl.mk
Package_res_xml.mk
PythonTest_sc_python.mk
README.md
subsequent_setup.mk sc: add test for the row import default index issue 2023-09-14 12:10:49 +02:00
ucalc_setup.mk
UIConfig_scalc.mk
UITest_autofilter.mk
UITest_autofilter2.mk
UITest_calc_dialogs.mk
UITest_calc_tests.mk
UITest_calc_tests2.mk
UITest_calc_tests3.mk
UITest_calc_tests4.mk
UITest_calc_tests6.mk
UITest_calc_tests7.mk
UITest_calc_tests8.mk
UITest_calc_tests9.mk
UITest_chart.mk
UITest_chart2.mk
UITest_conditional_format.mk
UITest_csv_dialog.mk
UITest_external_links.mk
UITest_function_wizard.mk
UITest_goalSeek.mk
UITest_inputLine.mk
UITest_key_f4.mk
UITest_manual_tests.mk
UITest_pageFormat.mk
UITest_pasteSpecial.mk
UITest_protect.mk
UITest_range_name.mk
UITest_sc_options.mk
UITest_search_replace.mk
UITest_signatureLine.mk
UITest_solver.mk
UITest_sort.mk
UITest_statistics.mk
UITest_textCase.mk
UITest_textToColumns.mk
UITest_validity.mk

README.md

Spreadsheet Application Code

You can dump some information in a dbgutil build:

Shortcuts

CTRL+SHIFT+F12

Dumps the column width of the first 20 columns.

CTRL+SHIFT+F11

Dumps the graphic objects and their position and size in pixel.

CTRL+SHIFT+F6

Dumps the SfxItemSet representing the cell properties' of the current selection as a xml file. The file will be named dump.xml

The Cache Format

ScDocument::StoreTabToCache allows storing the content (not the formatting) of a table to a binary cache format.

The format is column orientated which allows quick serialization of the table.

  • Header:

    • Number of Columns: 64 bit unsigned integer

  • Column:

    • Column Index: 64 bit unsigned integer
    • Column Size: 64 bit unsigned integer
    • For each cell type block a new ColumnBlock

  • ColumnBlock:

    • Start Row: 64 bit unsigned integer
    • Block Size: 64 bit unsigned integer
    • Type: 8 bit unsigned integer
      • 0 : empty
      • 1 : numeric
        • for each cell: 64 bit IEEE 754 double precision value
      • 2 : string
        • for each cell: 32 bit signed string length followed by string length bytes of the string (UTF-8)
      • 3 : formula
        • for each cell: 32 bit signed string length followed by the formula in R1C1 notation as a string

Functions Supporting Wildcards or Regular Expressions

As this comes up every now and then, and rather should be documented in an extra list of the Help system, functions that support Wildcards or Regular Expressions and depend on the setting under Tools -> Options -> Calc -> Calculate are those that in ODF OpenFormula (ODFF) are defined to depend on the HOST-USE-REGULAR-EXPRESSIONS or HOST-USE-WILDCARDS properties, see ODF v1.3 part4 3.4 Host-Defined Behaviors https://docs.oasis-open.org/office/OpenDocument/v1.3/os/part4-formula/OpenDocument-v1.3-os-part4-formula.html#__RefHeading__1017868_715980110

  • Database Functions
    • DAVERAGE
    • DCOUNT
    • DCOUNTA
    • DGET
    • DMAX
    • DMIN
    • DPRODUCT
    • DSTDEV
    • DSTDEVP
    • DSUM
    • DVAR
    • DVARP
  • Information Functions
    • COUNTIF
    • COUNTIFS
  • Lookup Functions
    • HLOOKUP
    • LOOKUP
    • MATCH
    • VLOOKUP
  • Mathematical Functions
    • SUMIF
    • SUMIFS
  • Statistical Functions
    • AVERAGEIF
    • AVERAGEIFS
  • Text Functions
    • SEARCH