Hello.
I have a treeview with 4 columns. One of them have 4 CellRendererPixbuf to
render 4 icons and in other column I have when to draw this icons. The model
is a TreeModel and I have parent rows and child rows. I have two problems:
1.- For the icons I have a celldata callback similar to this
void CMyTreeView::renderUnknownFlag(Gtk::CellRenderer *p_renderer, const
Gtk::TreeModel::iterator& p_iter){
Gtk::TreeModel::Row l_row;
Gtk::CellRendererPixbuf* l_renderer;
l_row = *p_iter;
if(!l_row[m_columns.m_draw])
return;
if (!p_renderer)
return;
l_renderer = dynamic_cast<Gtk::CellRendererPixbuf*>(p_renderer);
if (l_renderer != NULL){
l_renderer->property_pixbuf() = m_flag_unknown;
}
}
When the treeview is show, it work correctly, but when I expand any row
with child rows, it doesn't work correctly anymore. Icons always are drawn.
2.- I need to delete rows and all his childs on demand, but I don't know
how to delete rows and his childs. If I try to do this to erase all rows:
void CMyTreeView::removeRows(){
Gtk::TreeModel::iterator l_iter;
for(l_iter = m_tree->children().begin();l_iter !=
m_tree->children().end(); l_iter++)
m_tree->erase(l_iter);
}
I get the next error:
Gtk-ERROR **: file /build/buildd/gtk+2.0-2.12.0/gtk/gtktreestore.c: line 726
(gtk_tree_store_iter_parent): assertion failed: (parent != NULL)
Thanks,
Juan Ángel
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