Tomaž Vajngerl
bfc9cfdecf
The Lpsolve solver and the CoinMP solver are both used for the same thing: a linear model, with optional integer variables by branch and bound. CoinMP (CLP plus CBC) is the more capable and better maintained of the two, so the lp_solve one adds a second bundled dependency and a parallel copy of the solver code for no capability the other lacks. Remove the LpsolveSolver component, the bundled lp_solve external (and its colamd dependency, which only lp_solve used), and all the build, configure, packaging and license references to them. A document may still name com.sun.star.comp.Calc.LpsolveSolver as its engine. SolverSettings now reads that name as the CoinMP solver, which solves the same model, so such documents keep working. The Calc solver test that exercised the engine now uses CoinMP. Its knapsack model has a single optimal total value of 6987, which fills the weight capacity of 1000 exactly and which CoinMP finds. The lp_solve run had returned a suboptimal 6981, so the test now expects the true optimum. The build setup changes only take effect after re-running autogen. Signed-off-by: Tomaž Vajngerl <tomaz.vajngerl@collabora.co.uk> Change-Id: Ia14d8c491779873da6b0157aa524056275adf8f5 Reviewed-on: https://gerrit.collaboraoffice.com/c/online/+/3810 Reviewed-by: Miklos Vajna <vmiklos@collabora.com> Tested-by: Jenkins CPCI <releng@collaboraoffice.com> (cherry picked from commit e77738a7ca7d44fd9d1f852e26d46e3a6d60467b) Reviewed-on: https://gerrit.libreoffice.org/c/core/+/208038 Tested-by: Jenkins Reviewed-by: Xisco Fauli <xiscofauli@libreoffice.org>
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
- Array Functions
- CHOOSECOLS
- CHOOSEROWS
- DROP
- EXPAND
- HSTACK
- VSTACK
- TAKE
- TEXTSPLIT
- TOCOL
- TOROW
- WRAPCOLS
- WRAPROWS
- Database Functions
- DAVERAGE
- DCOUNT
- DCOUNTA
- DGET
- DMAX
- DMIN
- DPRODUCT
- DSTDEV
- DSTDEVP
- DSUM
- DVAR
- DVARP
- Information Functions
- COUNTIF
- COUNTIFS
- Lookup Functions
- HLOOKUP
- LOOKUP
- MATCH
- XMATCH
- VLOOKUP
- XLOOKUP
- FILTER
- SORT
- SORTBY
- UNIQUE
- Mathematical Functions
- RANDARRAY
- SEQUENCE
- SUMIF
- SUMIFS
- Statistical Functions
- AVERAGEIF
- AVERAGEIFS
- Text Functions
- SEARCH