tbuilder_widget_ptr create_builder_widget2(const std::string& type, const config& cfg)
{
std::map<std::string, boost::function<tbuilder_widget_ptr(config)> >::const_iterator it =
builder_widget_lookup().find(type);
VALIDATE(it != builder_widget_lookup().end(), "Unknown widget!");
return it->second(cfg);
}
void register_builder_widget(const std::string& id
, boost::function<tbuilder_widget_ptr(config)> functor)
{
builder_widget_lookup().insert(std::make_pair(id, functor));
}
tbuilder_widget_ptr create_builder_widget(const config& cfg)
{
config::all_children_itors children = cfg.all_children_range();
size_t nb_children = std::distance(children.first, children.second);
VALIDATE(nb_children == 1, "Grid cell does not have exactly 1 child.");
for(const auto & item : builder_widget_lookup())
{
if(item.first == "window" || item.first == "tooltip") {
continue;
}
if(const config& c = cfg.child(item.first)) {
return item.second(c);
}
}
if(const config& c = cfg.child("grid")) {
return new tbuilder_grid(c);
}
if(const config& instance = cfg.child("instance")) {
return new implementation::tbuilder_instance(instance);
}
if(const config& pane = cfg.child("pane")) {
return new implementation::tbuilder_pane(pane);
}
if(const config& viewport = cfg.child("viewport")) {
return new implementation::tbuilder_viewport(viewport);
}
/*
* This is rather odd, when commented out the classes no longer seem to be in
* the executable, no real idea why, except maybe of an overzealous optimizer
* while linking. It seems that all these classes aren't explicitly
* instantiated but only implicitly. Also when looking at the symbols in
* libwesnoth-game.a the repeating button is there regardless of this #if but
* in the final binary only if the #if is enabled.
*
* If this code is executed, which it will cause an assertion failure.
*
* Its likeley that this happens becasue some build this as a library file
* which is then used by the wesnoth executable. For msvc a good try to fix
* this issue is to add __pragma(comment(linker, "/include:" #TYPE)) or
* similar in the REGISTER_WIDGET3 macro. For gcc and similar this can only
* be fixed by using --whole-archive flag when linking this library.
*/
#if 1
#define TRY(name) \
do { \
if(const config& c = cfg.child(#name)) { \
tbuilder_widget_ptr p = new implementation::tbuilder_##name(c); \
assert(false); \
} \
} while(0)
TRY(stacked_widget);
TRY(scrollbar_panel);
TRY(horizontal_scrollbar);
TRY(repeating_button);
TRY(vertical_scrollbar);
TRY(label);
TRY(image);
TRY(toggle_button);
TRY(slider);
TRY(scroll_label);
TRY(matrix);
TRY(minimap);
TRY(button);
TRY(combobox);
TRY(drawing);
TRY(password_box);
TRY(unit_preview_pane);
#undef TRY
#endif
std::cerr << cfg;
ERROR_LOG(false);
}
