How can I traverse all of the items in a QStandardItemModel

I need a model tree to save PDF Bookmark like QStandardItemModel
and this model must combine on anchorNames () on a QTextDocument

i need a model to validate anchorNames () at QTextDocument .....

at end i save the tree on this way:

Code:

---

<fo:bookmark-tree>
          <fo:bookmark internal-destination="sec0" >
               <fo:bookmark-title>Internal dest.0</fo:bookmark-title>
               <fo:bookmark internal-destination="sec1" >
                    <fo:bookmark-title>Internal dest.1</fo:bookmark-title>
               </fo:bookmark>
               <fo:bookmark internal-destination="sec2" >
                    <fo:bookmark-title>Internal dest.2</fo:bookmark-title>
               </fo:bookmark>
          </fo:bookmark>
     </fo:bookmark-tree>

---

I search a way to traverse or iterate all node from model
i find only this here ...

http://troll.no/developer/knowledgeb...ndarditemmodel

Is here other way?


on read xml-bookmark i make it so...

Code:

---

void BookMarkModelRead::openRootBookmark( const QDomElement e )
{
    if (e.tagName() !="fo:bookmark-tree")
    {
        return;
    }
    foundTree = true;
    model = new QStandardItemModel();
    internalLinkFound.clear();
    setHeader();
    //////////////qDebug() << "### openRootBookmark -> " << e.tagName();
    QDomElement child = e.firstChildElement("fo:bookmark");
           while (!child.isNull()) {
                model->invisibleRootItem()->appendRow(Compose(child,0));
                child = child.nextSiblingElement("fo:bookmark");
           }
}
 
QList<QStandardItem *> BookMarkModelRead::Compose( const QDomElement e , const int leveldeep )
{
    Q_ASSERT ( e.tagName() == "fo:bookmark" );
    treeLoop++;
    QList<QStandardItem *> diritto;
    QIcon icob = createBookColorIcon( Qt::darkRed );
    QString txt = e.firstChildElement("fo:bookmark-title").text();
    if (txt.size() < 2) {
        txt = tr("No Title found!");
        icob = createBookColorIcon( Qt::red );
    }
    const QString link = e.attribute("internal-destination","null");
    internalLinkFound.append(link);
    qDebug() << "### read -> " << txt <<  "-" << treeLoop;
 
                    QStandardItem *item0 = new QStandardItem(txt);
                    item0->setData(leveldeep,Qt::UserRole);
                    item0->setData(bold_base_font,Qt::FontRole);
                    item0->setIcon ( icob );
                    item0->setFlags( flags );
 
                    diritto.append(item0);
 
                    QStandardItem *item1 = new QStandardItem(link);
                    item1->setFlags( flags );
                    item1->setData(leveldeep,Qt::UserRole);
 
                    diritto.append(item1);
 
                    QStandardItem *item2 = new QStandardItem(QString("%1").arg(leveldeep));
                    item2->setFlags( Qt::ItemIsEnabled );
                    item2->setData(leveldeep,Qt::UserRole);
 
                    diritto.append(item2);
 
    if (!e.firstChildElement("fo:bookmark").isNull() && leveldeep == 0 ) {
        /* one level deep down child */
         QDomElement child = e.firstChildElement("fo:bookmark");
           while (!child.isNull()) {
                       if ( child.tagName()  == "fo:bookmark") {
                              const QString nextlink = child.attribute("internal-destination","null");
                              if (!internalLinkFound.contains(nextlink)) {
                              diritto.first()->appendRow(Compose(child,leveldeep + 1));
                              }
                        }
 
               child = child.nextSiblingElement();
           }
    } else if (!e.nextSiblingElement("fo:bookmark").isNull() && leveldeep > 0 ) {
        /*  same level is only next on deep */
 
    }
    return diritto;
}

---

and to read the model it is not possibel?
i can not use QTreeWidget / QTreeWidgetItem why ... i can not set a model at him...
only QTreeView can set a model .... i know only a way to use sqlite3 as model...
Must i use sqlite3 to traverse all tree? QStandardItemModel can not make this job..

the resut... is not possible to read back from QTreeView ...!! onewayQTreeView :-(

http://ppk.ciz.ch/MiniScribus/treebook.png

Pseudo code:

Code:

---

for i = rowCount() - 1 to 0:
   push index( i, 0 )
while stack not empty:
   pop idx from stack
   process idx
   if hasChildren( idx ):
      for i = rowCount( idx ) - 1 to 0:
         push index( i, 0, idx )

---

(this code assumes that you keep items as rows and columns just represent their properties)

Ok i found a way to build a dom tree .. from a QStandardItemModel

a static function to retry child item

Code:

---

static QList<QStandardItem*> childList( QStandardItem *qi )
{
    QStandardItemModel *pm = qi->model();
    QList<QStandardItem*> rList;
    QModelIndex in = qi->index();
    if (!in.isValid()) {
    return rList; 
    }
    if (qi->rowCount() == 0) {
    return rList;  
    }
    for (int e = 0; e < qi->rowCount(); ++e) {
        QModelIndex si = pm->index(e,qi->column(),in);
        QStandardItem *iz = pm->itemFromIndex(si);
        if (iz) {
           rList << iz; 
        }
    }
    return rList; 
}

---

and a class to build a xml

Code:

---

void BookTree::subIterate()
{
    QStandardItemModel *pm = qobject_cast<QStandardItemModel *>(model());
    if (!pm) {
    return;
    }
    QStringList line;
    int rw = 0;
    int cw = 0;
    int ctot = 0;
    const int cools = pm->columnCount();
    const int rows = pm->rowCount();
    qDebug() << "-- iter ---------------------------------------------------------";
     for (int i = 0; i < cools; ++i) {
         const QString htxt = pm->headerData(i,Qt::Horizontal,Qt::DisplayRole).toString();
         const QString htxt1 = pm->headerData(i,Qt::Vertical,Qt::DisplayRole).toString();
         line << qMax(htxt,htxt1);
     }
     QList<QStandardItem*> list;
     for (int e = 0; e < rows; ++e) { 
         QStandardItem *ix_1 = pm->item(e,0);
         QStandardItem *ix_2 = pm->item(e,1);
         list.clear();
         list = childList(ix_1);
         ctot = list.size();
         int level = 0;
         qDebug() << "# lev." << level <<" line " << e << " txt " << ix_1->text() << "  child " << ctot;
         if (ctot !=0) {
 
                 level++;
                 foreach (QStandardItem *ix,list) {
                 list.clear();
                 ctot = 0;
                 list = childList(ix);
                 ctot = list.size();
                 qDebug() << "# lev." << level <<" line " << e << " txt " << ix->text() << "  child " << ctot; 
 
                 }
         }
     }
    qDebug() << "-- iter ---------------------------------------------------------";
}

---

now i must only transform the tree model -> flat like table to validate link...