Difference between revisions of "Education Project/Effort/Math baseline alignment/Discover starmath"
RakeshPandit (Talk | contribs) (Updating about SM/ calculations) |
B michaelsen (Talk | contribs) |
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! strange conditional breaks inside switch() | ! strange conditional breaks inside switch() | ||
+ | [[Category:Education]] |
Latest revision as of 23:06, 24 February 2010
Page Needs restructuring
Right now main calculations (and only calculations are at): SmRect::BuildRect function
nBaseline = aFM.GetAscent(); nAlignT = nBaseline - nFontHeight * 750L / 1000L; nAlignM = nBaseline - nFontHeight * 121L / 422L; // that's where the horizontal bars of '+', '-', ... are // (1/3 of ascent over baseline) // (121 = 1/3 of 12pt ascent, 422 = 12pt fontheight) nAlignB = nBaseline;
This is lone info about calculations happening till now.
TODO: Will need to list down cases where these calculations are made.
test_baseline code
diff -u -r1.7 rect.hxx --- inc/rect.hxx 24 Apr 2008 13:57:29 -0000 1.7 +++ inc/rect.hxx 23 Sep 2008 13:00:13 -0000 @@ -62,6 +62,7 @@ // Note: however, italic spaces can be negative! // // possible flags for the 'Draw' function below (just for debugging) #define SM_RECT_CORE 0x0001 #define SM_RECT_ITALIC 0x0002 @@ -112,6 +113,12 @@ bHasAlignInfo; protected: + void test_baseline() + { + if (!bHasBaseline) { + int i = 0; + } + } void BuildRect (const OutputDevice &rDev, const SmFormat *pFormat, const XubString &rText, USHORT nBorderWidth); void Init(const OutputDevice &rDev, const SmFormat *pFormat,
While setting break point at every test_baseline and writing an expression 'a over b = c' we can learn the flow of starmath module. Backtrace:
#0 SmBinHorNode::Arrange (this=0xadc1765c, rDev=@0xb00da560, rFormat=@0xb00da220) at /home/dev/OOo/starmath/source/node.cxx:1036 #1 0x02821df3 in SmLineNode::Arrange (this=0xadc1779c, rDev=@0xb00da560, rFormat=@0xb00da220) at /home/dev/OOo/starmath/source/node.cxx:806 #2 0x0282208d in SmExpressionNode::Arrange (this=0xadc1779c, rDev=@0xb00da560, rFormat=@0xb00da220) at /home/dev/OOo/starmath/source/node.cxx:854 #3 0x02821df3 in SmLineNode::Arrange (this=0xadb902b0, rDev=@0xb00da560, rFormat=@0xb00da220) at /home/dev/OOo/starmath/source/node.cxx:806 #4 0x0281c0dd in SmTableNode::Arrange (this=0xadb90490, rDev=@0xb00da560, rFormat=@0xb00da220) at /home/dev/OOo/starmath/source/node.cxx:750 #5 0x027efca4 in SmDocShell::ArrangeFormula (this=0xb00da1e0) at /home/dev/OOo/starmath/source/document.cxx:307 #6 0x027f19fb in SmDocShell::Draw (this=0xb00da1e0, rDev=@0xad7f104c, rPosition=@0xbfe646e4) at /home/dev/OOo/starmath/source/document.cxx:456 #7 0x02834d38 in SmGraphicWindow::Paint (this=0xad7f104c) at /home/dev/OOo/starmath/source/view.cxx:318
This page is a draft, and contains a short description of starmath module
inc -> contains al includes prj -> build.lst, d.lst qa -> does contain one unoapi directory FIXME : role ?
sdi -> role ? for menus creation ?
source : the main directory, containing .hxx .src and .cxx
Q: what is obsolete ?
in source
action.cxx : undo, redo, repeat / wip
cfgitem.hxx relative to fonts attributes, and sizes / to be verified
commands.src : does contain the menu entries. // reminder : add l/r_bar_arrow
config.cxx : SmConfig class implementation
detreg.cxx role ? // FIXME
dialog.cxx : everything dialogs, link with vcl/sfx2
Classes : SmAlignDialog : exact role ?
document.cxx :
SmDocShell::ArrangeFormula() -> usefull ?
SmDocShell::UpdateText() -> usefull too ?
SmEditWindow::DataChanged -> i.e.
format.cxx : all formating stuff for fonts
mathml .cxx /.hxx : uff ... needs more info :)
mathtype.cxx:
SM <-> MathType conversion
math glyphs handling ?
arrays: containing unicode correspondance list, aSelectorList, aIntegralOpt ..,
StarMath to Unicode conversion
! strange conditional breaks inside switch()