C++ wxArrayInt::push_back方法代码示例

void
wxHeaderCtrlBase::DoResizeColumnIndices(wxArrayInt& colIndices, unsigned int count)
{
    // update the column indices array if necessary
    const unsigned countOld = colIndices.size();
    if ( count > countOld )
    {
        // all new columns have default positions equal to their indices
        for ( unsigned n = countOld; n < count; n++ )
            colIndices.push_back(n);
    }
    else if ( count < countOld )
    {
        // filter out all the positions which are invalid now while keeping the
        // order of the remaining ones
        wxArrayInt colIndicesNew;
        colIndicesNew.reserve(count);
        for ( unsigned n = 0; n < countOld; n++ )
        {
            const unsigned idx = colIndices[n];
            if ( idx < count )
                colIndicesNew.push_back(idx);
        }

        colIndices.swap(colIndicesNew);
    }
    //else: count didn't really change, nothing to do

    wxASSERT_MSG( colIndices.size() == count, "logic error" );
}

        void WadListBox::GetSelections(wxArrayInt& selection) const {
            selection.clear();

            unsigned long cookie;
            int index = GetFirstSelected(cookie);
            while (index != wxNOT_FOUND) {
                selection.push_back(index);
                index = GetNextSelected(cookie);
            }
        }

unsigned int wxCheckListBoxBase::GetCheckedItems(wxArrayInt& checkedItems) const
{
    unsigned int const numberOfItems = GetCount();

    checkedItems.clear();
    for ( unsigned int i = 0; i < numberOfItems; ++i )
    {
        if ( IsChecked(i) )
            checkedItems.push_back(i);
    }

    return checkedItems.size();
}

    // returns all new dirs/files present in the immediate level of the dir
    // pointed by watch.GetPath(). "new" means created between the last time
    // the state of watch was computed and now
    void FindChanges(wxFSWatchEntryKq& watch,
                     wxArrayString& changedFiles,
                     wxArrayInt& changedFlags)
    {
        wxFSWatchEntryKq::wxDirState old = watch.GetLastState();
        watch.RefreshState();
        wxFSWatchEntryKq::wxDirState curr = watch.GetLastState();

        // iterate over old/curr file lists and compute changes
        wxArrayString::iterator oit = old.files.begin();
        wxArrayString::iterator cit = curr.files.begin();
        for ( ; oit != old.files.end() && cit != curr.files.end(); )
        {
            if ( *cit == *oit )
            {
                ++cit;
                ++oit;
            }
            else if ( *cit <= *oit )
            {
                changedFiles.push_back(*cit);
                changedFlags.push_back(wxFSW_EVENT_CREATE);
                ++cit;
            }
            else // ( *cit > *oit )
            {
                changedFiles.push_back(*oit);
                changedFlags.push_back(wxFSW_EVENT_DELETE);
                ++oit;
            }
        }

        // border conditions
        if ( oit == old.files.end() )
        {
            for ( ; cit != curr.files.end(); ++cit )
            {
                changedFiles.push_back( *cit );
                changedFlags.push_back(wxFSW_EVENT_CREATE);
            }
        }
        else if ( cit == curr.files.end() )
        {
            for ( ; oit != old.files.end(); ++oit )
            {
                changedFiles.push_back( *oit );
                changedFlags.push_back(wxFSW_EVENT_DELETE);
            }
        }

        wxASSERT( changedFiles.size() == changedFlags.size() );

#if 0
        wxLogTrace(wxTRACE_FSWATCHER, "Changed files:");
        wxArrayString::iterator it = changedFiles.begin();
        wxArrayInt::iterator it2 = changedFlags.begin();
        for ( ; it != changedFiles.end(); ++it, ++it2)
        {
            wxString action = (*it2 == wxFSW_EVENT_CREATE) ?
                                "created" : "deleted";
            wxLogTrace(wxTRACE_FSWATCHER, wxString::Format("File: '%s' %s",
                        *it, action));
        }
#endif
    }