is it possible to append a row to a TreeModel while having an iterator going through the same model?
I have a code snippet that does just the same, the second time the code runs the second gtk_tree_model_get_iter_first() seems to succeed but gives an invalid iterator, as I get invalid values.
I use an uptodate fedora core, gtk2-2.2.4-5.1.
This is the code:
void utolso_sztorno(void) {
GtkTreeIter iter, iter1;
int sorsz, sorsz1, lancfej, lancresz, gyujto, afa,
prev, next;
gchar *tranz, *vk, *nev, *afajel, *egys;
double szorzo, ar, osszeg; if (gtk_tree_model_get_iter_first(GTK_TREE_MODEL(ptgdb_internal->tetelek), &iter)) {
do {
gtk_tree_model_get (GTK_TREE_MODEL(ptgdb_internal->tetelek), &iter,
TETEL_SORSZ, &sorsz, TETEL_PREV, &lancresz, -1);
if (!lancresz)
lancfej = sorsz;
} while (gtk_tree_model_iter_next (GTK_TREE_MODEL(ptgdb_internal->tetelek), &iter));
#if 0 /* makes no difference */
memset(&iter, 0, sizeof(iter));
#endif
if (gtk_tree_model_get_iter_first(GTK_TREE_MODEL(ptgdb_internal->tetelek), &iter))
do {
gtk_tree_model_get (GTK_TREE_MODEL(ptgdb_internal->tetelek), &iter,
TETEL_SORSZ, &sorsz1, TETEL_TRANZAK, &tranz,
TETEL_VKOD, &vk, TETEL_NEV, &nev,
TETEL_GYUJTO, &gyujto, TETEL_AFA, &afa,
TETEL_AFAJEL, &afajel, TETEL_SZORZO, &szorzo,
TETEL_EGYSEG, &egys, TETEL_AR, &ar,
TETEL_OSSZEG, &osszeg, TETEL_PREV, &prev,
TETEL_NEXT, &next, -1);
/* here I get invalid numbers on the second run, seems to be un-initialized */
printf("sorsz: %d\n", sorsz1);
if (sorsz1 > sorsz)
break;
if ((sorsz1 >= lancfej) && (sorsz1 <= sorsz)) {
gtk_list_store_set (ptgdb_internal->tetelek,
&iter1, TETEL_SZTORNO, TRUE,
osszeg, -1);
gtk_list_store_append (ptgdb_internal->tetelek, &iter1);
gtk_list_store_set(ptgdb_internal->tetelek, &iter1,
TETEL_SORSZ, sorsz1 + sorsz - lancfej + 1,
TETEL_TRANZAK, tranz,
TETEL_VKOD, vk, TETEL_NEV, nev,
TETEL_SZTORNO, TRUE, TETEL_IGAZITAS, 1.0,
TETEL_GYUJTO, gyujto,
TETEL_AFA, afa, TETEL_AFAJEL, afajel,
TETEL_SZORZO, -szorzo,
TETEL_EGYSEG, egys,
TETEL_AR, ar, TETEL_OSSZEG, -osszeg,
TETEL_PREV, prev, TETEL_NEXT, next,
-1);
}
} while (gtk_tree_model_iter_next (GTK_TREE_MODEL(ptgdb_internal->tetelek), &iter1));
} else
gdk_beep();
}
-- Best regards, Zoltán Böszörményi
--------------------- What did Hussein say about his knife? One in Bush worth two in the hand.
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