Make autosize_special const and add a const autosize overload

[libs/gltk.git] / source / list.cpp

diff --git a/source/list.cpp b/source/list.cpp
index eaab9e0e5ed8857a0bdaea7e779374577efbf7da..461d5e425c3076426f8ad51029ee971825cf396f 100644 (file)
--- a/source/list.cpp
+++ b/source/list.cpp
@@ -55,7 +55,7 @@ List::~List()
                delete data;
 }
 
-void List::autosize_special(const Part &part, Geometry &ageom)
+void List::autosize_special(const Part &part, Geometry &ageom) const
 {
        if(part.get_name()=="items")
        {
@@ -65,7 +65,6 @@ void List::autosize_special(const Part &part, Geometry &ageom)
                unsigned total_h = 0;
                for(unsigned i=0; i<items.size(); ++i)
                {
-                       items[i]->autosize();
                        const Geometry &igeom = items[i]->get_geometry();
                        max_w = max(max_w, igeom.w);
                        if(view_size==0 || i<view_size)
@@ -100,7 +99,6 @@ void List::set_data(ListData &d)
        for(unsigned i=0; i<n_items; ++i)
        {
                Item *item = create_item(i);
-               add(*item);
                items.push_back(item);
        }
 
@@ -116,10 +114,15 @@ void List::items_changed()
 
 List::Item *List::create_item(unsigned index)
 {
+       Item *item = 0; 
        if(item_factory)
-               return item_factory->create_item(index);
+               item = item_factory->create_item(index);
        else
-               return new BasicItem(data->get_string(index));
+               item = new BasicItem(data->get_string(index));
+       add(*item);
+       item->autosize();
+       item->signal_autosize_changed.connect(sigc::bind(sigc::mem_fun(this, &List::item_autosize_changed), item));
+       return item;
 }
 
 void List::set_view_size(unsigned s)
@@ -138,11 +141,14 @@ void List::set_selected_index(int i)
        if(i>=static_cast<int>(data->size()))
                throw out_of_range("List::set_selected_index");
 
+       if(i==sel_index)
+               return;
+
        if(sel_index>=0)
                items[sel_index]->set_active(false);
        if(i<0)
                sel_index = -1;
-       else if(i!=sel_index)
+       else
        {
                sel_index = i;
                items[sel_index]->set_active(true);
@@ -207,6 +213,13 @@ void List::reposition_slider()
        }
 }
 
+void List::item_autosize_changed(Item *item)
+{
+       signal_autosize_changed.emit();
+       item->autosize();
+       reposition_items();
+}
+
 void List::reposition_items()
 {
        if(!style)
@@ -298,7 +311,6 @@ void List::DataObserver::item_added(unsigned i)
                ++list.sel_index;
 
        Item *item = list.create_item(i);
-       list.add(*item);
        list.items.insert(list.items.begin()+i, item);
        list.items_changed();
 }
@@ -332,7 +344,7 @@ void List::DataObserver::refresh_item(unsigned i)
 }
 
 
-void List::Item::autosize_special(const Part &part, Geometry &ageom)
+void List::Item::autosize_special(const Part &part, Geometry &ageom) const
 {
        if(part.get_name()=="children")
        {