Skip to main content

customization - Preserving changed Output style


Let's say I have a stylesheet with two slightly different "Output" and "Output2" styles.



"Input" generates "Output" which can be switched with "Output2" using Tab/Backspace.


The problem is that "Output2" is replaced with "Output" if you evaluate input again. I'd like to preserve changed style.


Unfortunately there is not much flexibility/documentation for GeneratedCellStyles


I have a solution but my approach looks ugly because one has to deal with exceptions like Input being the last cell in the notebook or protecting other styles which follow Input.


So the question is:


Is there something I've missed in cell/notebook options? Can my code be improved in any way?


The solution needs to work from a stylesheet level.


My approach


The fix is to use CellProlog/CellEpilog for "Input" style.


CreateDocument[

{ ExpressionCell[Defer[1 + 1], "Input"]
, ExpressionCell[2, "Output2"]
}
, StyleDefinitions -> Notebook[
{ Cell[StyleData[StyleDefinitions -> "Default.nb"]]
, Cell[StyleData["Output"]
, StyleKeyMapping -> {"Tab" -> "Output2"}]
, Cell[StyleData["Output2", StyleDefinitions -> StyleData["Output"] (*1*)]
, Background -> RGBColor[1, 0, 1]
, StyleKeyMapping -> {"Backspace" -> "Output"}

]
, Cell[ (*here starts the solution*)
StyleData["Input"]
, CellProlog :> SetOptions[ (*2*)
EvaluationCell[]
, TaggingRules -> {"OutputStyle" -> Module[{nc = NextCell[], style}
, Which[
nc === None
, Inherited
, MemberQ[{"Output2"}

, style = ("Style" /. Developer`CellInformation[nc] (*3*))
]
, style
, True
, Inherited
]
]}]
, CellEpilog :> Module[
{ nc = NextCell[]
, style = CurrentValue[EvaluationCell[], {TaggingRules, "OutputStyle"}]

}
, Which[
Or[nc === None, style === Inherited]
, Null
, True
, SelectionMove[nc, All, Cell, AutoScroll -> False]
; FrontEndTokenExecute[EvaluationNotebook[], "Style", style](*4*)
; SelectionMove[EvaluationNotebook[], After, Cell]
]
]

]
}
]
]

Refs





  1. Is there a way to base one style on another?





  2. SetOptions because of Notebook's TaggingRules inherit too much




  3. How can I get the style of selected cells?




  4. Set the style of a cell






Answer



Here's an improvement. We can drop CellEpilog and set "GeneratedCellStyles" from CellProlog using old code.


CreateDocument[
{ ExpressionCell[Defer[1 + 1], "Input"]
, ExpressionCell[2, "Output2"]
}
, StyleDefinitions -> Notebook[
{ Cell[StyleData[StyleDefinitions -> "Default.nb"]]
, Cell[StyleData["Output"]

, StyleKeyMapping -> {"Tab" -> "Output2"}
]
, Cell[StyleData["Output2", StyleDefinitions -> StyleData["Output"] (*1*)]
, Background -> RGBColor[1, 0, 1]
, StyleKeyMapping -> {"Backspace" -> "Output"}
]
, Cell[StyleData["Input"]
, CellProlog :> SetOptions[
EvaluationCell[]
, "GeneratedCellStyles" -> {

"Output" -> Module[{nc = NextCell[]}
, Which[
nc === None, Inherited
, "Output2" === ("Style" /. Developer`CellInformation[nc]), "Output2"
, True, Inherited
]
]
}
]
]

}
]
]

I set the option for EvaluationCell so that in case of Abort it won't affect the whole notebook.


Comments

Popular posts from this blog

functions - Get leading series expansion term?

Given a function f[x] , I would like to have a function leadingSeries that returns just the leading term in the series around x=0 . For example: leadingSeries[(1/x + 2)/(4 + 1/x^2 + x)] x and leadingSeries[(1/x + 2 + (1 - 1/x^3)/4)/(4 + x)] -(1/(16 x^3)) Is there such a function in Mathematica? Or maybe one can implement it efficiently? EDIT I finally went with the following implementation, based on Carl Woll 's answer: lds[ex_,x_]:=( (ex/.x->(x+O[x]^2))/.SeriesData[U_,Z_,L_List,Mi_,Ma_,De_]:>SeriesData[U,Z,{L[[1]]},Mi,Mi+1,De]//Quiet//Normal) The advantage is, that this one also properly works with functions whose leading term is a constant: lds[Exp[x],x] 1 Answer Update 1 Updated to eliminate SeriesData and to not return additional terms Perhaps you could use: leadingSeries[expr_, x_] := Normal[expr /. x->(x+O[x]^2) /. a_List :> Take[a, 1]] Then for your examples: leadingSeries[(1/x + 2)/(4 + 1/x^2 + x), x] leadingSeries[Exp[x], x] leadingSeries[(1/x + 2 + (1 - 1/x...

How to thread a list

I have data in format data = {{a1, a2}, {b1, b2}, {c1, c2}, {d1, d2}} Tableform: I want to thread it to : tdata = {{{a1, b1}, {a2, b2}}, {{a1, c1}, {a2, c2}}, {{a1, d1}, {a2, d2}}} Tableform: And I would like to do better then pseudofunction[n_] := Transpose[{data2[[1]], data2[[n]]}]; SetAttributes[pseudofunction, Listable]; Range[2, 4] // pseudofunction Here is my benchmark data, where data3 is normal sample of real data. data3 = Drop[ExcelWorkBook[[Column1 ;; Column4]], None, 1]; data2 = {a #, b #, c #, d #} & /@ Range[1, 10^5]; data = RandomReal[{0, 1}, {10^6, 4}]; Here is my benchmark code kptnw[list_] := Transpose[{Table[First@#, {Length@# - 1}], Rest@#}, {3, 1, 2}] &@list kptnw2[list_] := Transpose[{ConstantArray[First@#, Length@# - 1], Rest@#}, {3, 1, 2}] &@list OleksandrR[list_] := Flatten[Outer[List, List@First[list], Rest[list], 1], {{2}, {1, 4}}] paradox2[list_] := Partition[Riffle[list[[1]], #], 2] & /@ Drop[list, 1] RM[list_] := FoldList[Transpose[{First@li...

front end - keyboard shortcut to invoke Insert new matrix

I frequently need to type in some matrices, and the menu command Insert > Table/Matrix > New... allows matrices with lines drawn between columns and rows, which is very helpful. I would like to make a keyboard shortcut for it, but cannot find the relevant frontend token command (4209405) for it. Since the FullForm[] and InputForm[] of matrices with lines drawn between rows and columns is the same as those without lines, it's hard to do this via 3rd party system-wide text expanders (e.g. autohotkey or atext on mac). How does one assign a keyboard shortcut for the menu item Insert > Table/Matrix > New... , preferably using only mathematica? Thanks! Answer In the MenuSetup.tr (for linux located in the $InstallationDirectory/SystemFiles/FrontEnd/TextResources/X/ directory), I changed the line MenuItem["&New...", "CreateGridBoxDialog"] to read MenuItem["&New...", "CreateGridBoxDialog", MenuKey["m", Modifiers-...