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);
81 else if(part.get_name()=="slider")
82 autosize_child(slider, part, ageom);
85 void List::set_data(ListData &d)
88 item_factory->set_data(d);
96 observer = new DataObserver(*this);
98 for(vector<Item *>::iterator i=items.begin(); i!=items.end(); ++i)
101 unsigned n_items = data->size();
102 for(unsigned i=0; i<n_items; ++i)
104 Item *item = create_item(i);
105 items.push_back(item);
111 void List::items_changed()
113 signal_autosize_changed.emit();
117 List::Item *List::create_item(unsigned index)
121 item = item_factory->create_item(index);
123 item = new BasicItem(data->get_string(index));
124 item->signal_autosize_changed.connect(sigc::bind(sigc::mem_fun(this, &List::item_autosize_changed), item));
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::rebuild_special(const Part &part)
162 if(part.get_name()=="slider")
163 reposition_child(slider, part);
164 else if(part.get_name()=="items")
166 const Sides &margin = part.get_margin();
167 unsigned w = geom.w-min(geom.w, margin.left+margin.right);
168 unsigned y = geom.h-min(geom.h, margin.top);
169 for(unsigned i=0; i<items.size(); ++i)
172 items[i]->set_visible(false);
175 Geometry igeom = items[i]->get_geometry();
176 if(igeom.h+margin.bottom<=y)
178 items[i]->set_visible(true);
180 igeom.x = margin.left;
183 items[i]->set_geometry(igeom);
187 items[i]->set_visible(false);
196 Widget::rebuild_special(part);
199 void List::render_special(const Part &part, GL::Renderer &renderer) const
201 if(part.get_name()=="items")
203 for(unsigned i=first; (i<items.size() && items[i]->is_visible()); ++i)
204 items[i]->render(renderer);
206 else if(part.get_name()=="slider")
207 slider.render(renderer);
210 void List::button_press(int x, int y, unsigned btn)
212 Container::button_press(x, y, btn);
213 if(click_focus && btn==1)
215 for(unsigned i=first; (i<items.size() && items[i]->is_visible()); ++i)
216 if(click_focus==items[i])
218 set_selected_index(i);
224 void List::item_autosize_changed(Item *item)
227 signal_autosize_changed.emit();
231 void List::check_view_range()
237 if(const Part *items_part = style->get_part("items"))
239 const Sides &margin = items_part->get_margin();
240 h -= margin.top+margin.bottom;
243 max_scroll = items.size();
244 for(unsigned i=items.size(); i-->0; )
246 unsigned ih = items[i]->get_geometry().h;
257 slider.set_range(0, max_scroll);
258 slider.set_value(max_scroll-first);
261 void List::slider_value_changed(double value)
265 first = max_scroll-static_cast<unsigned>(value);
271 List::DataObserver::DataObserver(List &l):
274 list.data->signal_item_added.connect(sigc::mem_fun(this, &DataObserver::item_added));
275 list.data->signal_item_removed.connect(sigc::mem_fun(this, &DataObserver::item_removed));
276 list.data->signal_cleared.connect(sigc::mem_fun(this, &DataObserver::cleared));
277 list.data->signal_refresh_item.connect(sigc::mem_fun(this, &DataObserver::refresh_item));
280 void List::DataObserver::item_added(unsigned i)
282 if(list.sel_index>=static_cast<int>(i))
285 Item *item = list.create_item(i);
286 list.items.insert(list.items.begin()+i, item);
287 list.items_changed();
290 void List::DataObserver::item_removed(unsigned i)
292 if(list.sel_index>static_cast<int>(i))
294 else if(list.sel_index==static_cast<int>(i))
297 delete list.items[i];
298 list.items.erase(list.items.begin()+i);
299 list.items_changed();
302 void List::DataObserver::cleared()
305 for(vector<Item *>::iterator i=list.items.begin(); i!=list.items.end(); ++i)
308 list.items_changed();
311 void List::DataObserver::refresh_item(unsigned i)
313 delete list.items[i];
314 list.items[i] = list.create_item(i);
315 list.items_changed();
319 void List::Item::autosize_special(const Part &part, Geometry &ageom) const
321 if(part.get_name()=="children")
323 const Sides &margin = part.get_margin();
324 for(list<Child *>::const_iterator i=children.begin(); i!=children.end(); ++i)
327 (*i)->widget->autosize(cgeom);
328 ageom.w = max(ageom.w, cgeom.x+cgeom.w+margin.right);
329 ageom.h = max(ageom.h, cgeom.y+cgeom.h+margin.top);
334 void List::Item::set_active(bool a)
336 set_state(ACTIVE, (a ? ACTIVE : NORMAL));
339 void List::Item::render_special(const Part &part, GL::Renderer &renderer) const
341 if(part.get_name()=="children")
343 for(list<Child *>::const_iterator i=children.begin(); i!=children.end(); ++i)
344 (*i)->widget->render(renderer);
349 void List::MultiColumnItem::check_widths(vector<unsigned> &widths) const
351 if(widths.size()<children.size())
352 widths.resize(children.size(), 0);
355 for(list<Child *>::const_iterator i=children.begin(); i!=children.end(); ++i, ++n)
358 (*i)->widget->autosize(cgeom);
359 // TODO invent a better way to specify spacings
360 widths[n] = max(widths[n], cgeom.w+8);
364 void List::MultiColumnItem::set_widths(const vector<unsigned> &widths)
369 const Part *part = style->get_part("children");
373 const Sides &margin = part->get_margin();
376 for(list<Child *>::const_iterator i=children.begin(); i!=children.end(); ++i, ++n)
378 (*i)->widget->set_position(x, margin.bottom);
383 void List::MultiColumnItem::on_style_change()
388 for(std::list<Child *>::const_iterator i=children.begin(); i!=children.end(); ++i)
389 (*i)->widget->autosize();
391 vector<unsigned> widths;
392 List *list = static_cast<List *>(parent);
393 for(vector<Item *>::const_iterator i=list->items.begin(); i!=list->items.end(); ++i)
395 if(MultiColumnItem *mci = dynamic_cast<MultiColumnItem *>(*i))
396 mci->check_widths(widths);
398 vector<unsigned> self_widths(widths);
399 check_widths(self_widths);
400 bool update_all = false;
401 for(unsigned i=0; (!update_all && i<widths.size() && i<self_widths.size()); ++i)
402 update_all = self_widths[i]>widths[i];
406 for(vector<Item *>::const_iterator i=list->items.begin(); i!=list->items.end(); ++i)
407 if(MultiColumnItem *mci = dynamic_cast<MultiColumnItem *>(*i))
408 mci->set_widths(self_widths);
411 set_widths(self_widths);
415 List::BasicItem::BasicItem(const string &text):
421 void List::BasicItem::on_style_change()
427 if(const Part *part = style->get_part("children"))
429 const Sides &margin = part->get_margin();
430 label.set_position(margin.left, margin.bottom);
435 List::Loader::Loader(List &l):
436 DataFile::DerivedObjectLoader<List, Widget::Loader>(l)
438 add("item", &Loader::item);
439 add("view_size", &List::view_size);
442 void List::Loader::item(const string &v)
444 dynamic_cast<BasicListData<string> &>(*obj.data).append(v);