Conditionally showing linked Objects using Layout DXL

Hi all,

I have tried around programming some DXL Attributes which eventually even worked. It took me ages however and programming DXL is not my best feature. I've no experience in programming C++ either and my recently aquired Newby-DXL-knowledge has seemed to reach its outer limits.

I would like to show incoming links by using Layout DXL, created with the Link Analysis Wizard. Some of these links have an analysis depth of > 1, but I suppose that's of no relevance in this case.
My problem is that I do not want to show all incoming links. The linked object in the other module should only show up if a certain attribute of that linked object (e.g. attribute "x") has a certain value, say "yes".

My idea was to change the layout DXL into an DXL attribute (making the code available) and to additionally insert some kind of if-then-statement at the right place. However, when I look at the code after converting Layout DXL into attribute DXL i get the following:
 

/*
    Diese Attribut-DXL wurde erstellt am 16.11.2011 13:48:36.
*/
 
// prevent dxl timeout dialog
pragma runLim, 0
 
Buffer bsz = create
 
void endAttributeDXL()
{
    if (!null obj && attrDXLName != "")
    {
        obj.attrDXLName = richText tempStringOf(bsz)
    }
 
    delete bsz
}
 
void addNewLineSeparator(Buffer& b)
{
    if (length(b) > 0)
    {
        b += "\n"
    }
}
 
void display(string s)
{
    addNewLineSeparator(bsz)
    bsz += s
}
 
void displayRich(string s)
{
    addNewLineSeparator(bsz)
    bsz += s
}
 
void displayRichWithColour(string s)
{
    addNewLineSeparator(bsz)
    bsz += s
}
 
void displayRichWithColor(string s)
{
    addNewLineSeparator(bsz)
    bsz += s
}
 
void display(Attr__ a)
{
    string s = richText a
    if (!null s)
    {
        displayRich s
    }
}
 
//**********
 
// DXL generated by DOORS traceability wizard on 09 November 2011.
// Wizard version 2.0, DOORS version 9.2.0.5
pragma runLim, 0
string limitModules[2] = {"4a3769507c9d1362-00000bcd", "4a3769507c9d1362-00001983"}
string limitVersions[2] = {"", ""}
int lines[2] = {0, 0}
void adjustLines(int depth, showAtDepth) {
    int count
    for (count = 0; count < 2; count++) {
        while (lines[depth-1] < lines[count]) {
            if (depth == showAtDepth) displayRich("\\pard " " ")
            lines[depth-1]++
        }
    }
}
void showOut(Object o, int depth) {
    Link l
    LinkRef lr
    ModName_ otherMod = null
    Module linkMod = null
    ModuleVersion otherVersion = null
    Object othero
    string disp = null
    string s = null
    string plain, plainDisp
    int plainTextLen
    int count
    bool doneOne = false
    string linkModName = "*"
    for l in all(o->linkModName) do {
        otherVersion = targetVersion l
        otherMod = module(otherVersion)
        if (null otherMod || isDeleted otherMod) continue
        if (!equal(getItem otherMod, (itemFromID limitModules[depth-1]))) continue
        if (versionString(otherVersion) != limitVersions[depth-1]) continue
        othero = target l
        if (null othero) continue
        if (isDeleted othero) continue
        int oldLines = lines[depth-1]
        adjustLines(depth, 2)
        bool kick = (doneOne) && (lines[depth-1] == oldLines)
        if (kick) {
            lines[depth-1]++
            if (depth == 2) displayRich("\\pard " " ")
        }
        if (depth < 2) {
            showOut(othero, depth+1)
        }
        doneOne = true
        if (depth == 2) {
            s = (identifier othero)
            if (s == "") 
            displayRich("\\pard " " ")
            else
            displayRich("\\pard " s)
            s = probeRichAttr_(othero,"Object Text", false)
            if (s == "") 
            displayRich("\\pard " " ")
            else
            displayRich("\\pard " s)
        }
        lines[depth-1] += 2
    }
}
showOut(obj,1)
 
//**********
 
endAttributeDXL()

I suppose the follwoing part is the interesting part and "othero" is the linked object in the other module. The value of the other objects attribute "x" would be of my interest, right?

if (depth == 2) {
            s = (identifier othero)
            if (s == "") 
            displayRich("\\pard " " ")
            else
            displayRich("\\pard " s)
            s = probeRichAttr_(othero,"Object Text", false)
            if (s == "") 
            displayRich("\\pard " " ")
            else
            displayRich("\\pard " s)
        }

Any ideas? How should I bring in the if-then part for showing only certain links which fullfill the condition attribute "x" of the other object has value "yes"?

Re: Conditionally showing linked Objects using Layout DXL
OurGuest - Wed Nov 16 08:31:59 EST 2011

Before any displayRich put something in similar to following:

if(othero."X" "" =="yes") {...} else continue

Re: Conditionally showing linked Objects using Layout DXL
llandale - Wed Nov 16 14:57:48 EST 2011

• Louie

Re: Conditionally showing linked Objects using Layout DXL
MHussaarts - Thu Nov 17 03:14:52 EST 2011

Re: Conditionally showing linked Objects using Layout DXL
llandale - Thu Nov 17 13:22:28 EST 2011

• Louie