1 #include <msp/debug/demangle.h>
2 #include <msp/gl/matrix.h>
3 #include <msp/gl/meshbuilder.h>
16 incompatible_data::incompatible_data(const type_info &ti):
17 logic_error("expected "+Debug::demangle(ti.name()))
22 data(new BasicListData<string>),
28 List::List(ListData &d):
43 observer = new DataObserver(*this);
47 slider.signal_value_changed.connect(sigc::mem_fun(this, &List::slider_value_changed));
58 void List::autosize_special(const Part &part, Geometry &ageom) const
60 if(part.get_name()=="items")
62 const Sides &margin = part.get_margin();
66 for(unsigned i=0; i<items.size(); ++i)
69 items[i]->autosize(igeom);
70 max_w = max(max_w, igeom.w);
71 if(view_size==0 || i<view_size)
75 if(!items.empty() && items.size()<view_size)
76 total_h = total_h*view_size/items.size();
78 ageom.w = max(ageom.w, max_w+margin.left+margin.right);
79 ageom.h = max(ageom.h, total_h+margin.top+margin.bottom);
83 void List::set_data(ListData &d)
86 item_factory->set_data(d);
94 observer = new DataObserver(*this);
96 for(vector<Item *>::iterator i=items.begin(); i!=items.end(); ++i)
99 unsigned n_items = data->size();
100 for(unsigned i=0; i<n_items; ++i)
102 Item *item = create_item(i);
103 items.push_back(item);
109 void List::items_changed()
112 signal_autosize_changed.emit();
116 List::Item *List::create_item(unsigned index)
120 item = item_factory->create_item(index);
122 item = new BasicItem(data->get_string(index));
125 item->signal_autosize_changed.connect(sigc::mem_fun(this, &List::item_autosize_changed));
129 void List::set_view_size(unsigned s)
132 signal_autosize_changed.emit();
135 void List::set_view_all()
140 void List::set_selected_index(int i)
142 if(i>=static_cast<int>(data->size()))
143 throw out_of_range("List::set_selected_index");
149 items[sel_index]->set_active(false);
155 items[sel_index]->set_active(true);
156 signal_item_selected.emit(sel_index);
160 void List::render_special(const Part &part, GL::Renderer &renderer) const
162 if(part.get_name()=="items")
164 for(unsigned i=first; (i<items.size() && items[i]->is_visible()); ++i)
165 items[i]->render(renderer);
167 else if(part.get_name()=="slider")
168 slider.render(renderer);
171 void List::button_press(int x, int y, unsigned btn)
173 Container::button_press(x, y, btn);
174 if(click_focus && btn==1)
176 for(unsigned i=first; (i<items.size() && items[i]->is_visible()); ++i)
177 if(click_focus==items[i])
179 set_selected_index(i);
185 void List::on_geometry_change()
193 void List::on_style_change()
204 void List::reposition_slider()
209 if(const Part *slider_part = style->get_part("slider"))
211 Geometry sgeom = slider_part->get_geometry();
212 slider_part->get_alignment().apply(sgeom, geom, slider_part->get_margin());
213 slider.set_geometry(sgeom);
217 void List::item_autosize_changed()
219 signal_autosize_changed.emit();
223 void List::reposition_items()
228 if(const Part *items_part = style->get_part("items"))
230 const Sides &margin = items_part->get_margin();
231 unsigned w = geom.w-min(geom.w, margin.left+margin.right);
232 unsigned y = geom.h-min(geom.h, margin.top);
233 for(unsigned i=0; i<items.size(); ++i)
236 items[i]->set_visible(false);
240 items[i]->autosize(igeom);
241 if(igeom.h+margin.bottom<=y)
243 items[i]->set_visible(true);
245 igeom.x = margin.left;
248 items[i]->set_geometry(igeom);
252 items[i]->set_visible(false);
260 void List::check_view_range()
266 if(const Part *items_part = style->get_part("items"))
268 const Sides &margin = items_part->get_margin();
269 h -= margin.top+margin.bottom;
272 max_scroll = items.size();
273 for(unsigned i=items.size(); i-->0; )
275 unsigned ih = items[i]->get_geometry().h;
286 slider.set_range(0, max_scroll);
287 slider.set_value(max_scroll-first);
290 void List::slider_value_changed(double value)
294 first = max_scroll-static_cast<unsigned>(value);
300 List::DataObserver::DataObserver(List &l):
303 list.data->signal_item_added.connect(sigc::mem_fun(this, &DataObserver::item_added));
304 list.data->signal_item_removed.connect(sigc::mem_fun(this, &DataObserver::item_removed));
305 list.data->signal_cleared.connect(sigc::mem_fun(this, &DataObserver::cleared));
306 list.data->signal_refresh_item.connect(sigc::mem_fun(this, &DataObserver::refresh_item));
309 void List::DataObserver::item_added(unsigned i)
311 if(list.sel_index>=static_cast<int>(i))
314 Item *item = list.create_item(i);
315 list.items.insert(list.items.begin()+i, item);
316 list.items_changed();
319 void List::DataObserver::item_removed(unsigned i)
321 if(list.sel_index>static_cast<int>(i))
323 else if(list.sel_index==static_cast<int>(i))
326 delete list.items[i];
327 list.items.erase(list.items.begin()+i);
328 list.items_changed();
331 void List::DataObserver::cleared()
334 for(vector<Item *>::iterator i=list.items.begin(); i!=list.items.end(); ++i)
337 list.items_changed();
340 void List::DataObserver::refresh_item(unsigned i)
342 delete list.items[i];
343 list.items[i] = list.create_item(i);
344 list.items_changed();
348 void List::Item::autosize_special(const Part &part, Geometry &ageom) const
350 if(part.get_name()=="children")
352 const Sides &margin = part.get_margin();
353 for(list<Child *>::const_iterator i=children.begin(); i!=children.end(); ++i)
355 const Geometry &cgeom = (*i)->widget->get_geometry();
356 ageom.w = max(ageom.w, cgeom.x+cgeom.w+margin.right);
357 ageom.h = max(ageom.h, cgeom.y+cgeom.h+margin.top);
362 void List::Item::set_active(bool a)
364 set_state(ACTIVE, (a ? ACTIVE : NORMAL));
367 void List::Item::render_special(const Part &part, GL::Renderer &renderer) const
369 if(part.get_name()=="children")
371 for(list<Child *>::const_iterator i=children.begin(); i!=children.end(); ++i)
372 (*i)->widget->render(renderer);
377 List::BasicItem::BasicItem(const string &text):
383 void List::BasicItem::on_style_change()
389 if(const Part *part = style->get_part("children"))
391 const Sides &margin = part->get_margin();
392 label.set_position(margin.left, margin.bottom);
397 List::Loader::Loader(List &l):
398 DataFile::DerivedObjectLoader<List, Widget::Loader>(l)
400 add("item", &Loader::item);
401 add("view_size", &List::view_size);
404 void List::Loader::item(const string &v)
406 dynamic_cast<BasicListData<string> &>(*obj.data).append(v);