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)
60 if(part.get_name()=="items")
62 const Sides &margin = part.get_margin();
66 for(unsigned i=0; i<items.size(); ++i)
69 const Geometry &igeom = items[i]->get_geometry();
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);
104 items.push_back(item);
110 void List::items_changed()
113 signal_autosize_changed.emit();
117 List::Item *List::create_item(unsigned index)
120 return item_factory->create_item(index);
122 return new BasicItem(data->get_string(index));
125 void List::set_view_size(unsigned s)
128 signal_autosize_changed.emit();
131 void List::set_view_all()
136 void List::set_selected_index(int i)
138 if(i>=static_cast<int>(data->size()))
139 throw out_of_range("List::set_selected_index");
142 items[sel_index]->set_active(false);
145 else if(i!=sel_index)
148 items[sel_index]->set_active(true);
149 signal_item_selected.emit(sel_index);
153 void List::render_special(const Part &part, GL::Renderer &renderer) const
155 if(part.get_name()=="items")
157 for(unsigned i=first; (i<items.size() && items[i]->is_visible()); ++i)
158 items[i]->render(renderer);
160 else if(part.get_name()=="slider")
161 slider.render(renderer);
164 void List::button_press(int x, int y, unsigned btn)
166 Container::button_press(x, y, btn);
167 if(click_focus && btn==1)
169 for(unsigned i=first; (i<items.size() && items[i]->is_visible()); ++i)
170 if(click_focus==items[i])
172 set_selected_index(i);
178 void List::on_geometry_change()
186 void List::on_style_change()
197 void List::reposition_slider()
202 if(const Part *slider_part = style->get_part("slider"))
204 Geometry sgeom = slider_part->get_geometry();
205 slider_part->get_alignment().apply(sgeom, geom, slider_part->get_margin());
206 slider.set_geometry(sgeom);
210 void List::reposition_items()
215 if(const Part *items_part = style->get_part("items"))
217 const Sides &margin = items_part->get_margin();
218 unsigned w = geom.w-margin.left-margin.right;
219 unsigned y = geom.h-margin.top;
220 for(unsigned i=0; i<items.size(); ++i)
223 items[i]->set_visible(false);
226 Geometry igeom = items[i]->get_geometry();
227 if(igeom.h+margin.bottom<=y)
229 items[i]->set_visible(true);
231 igeom.x = margin.left;
234 items[i]->set_geometry(igeom);
238 items[i]->set_visible(false);
246 void List::check_view_range()
252 if(const Part *items_part = style->get_part("items"))
254 const Sides &margin = items_part->get_margin();
255 h -= margin.top+margin.bottom;
258 max_scroll = items.size();
259 for(unsigned i=items.size(); i-->0; )
261 unsigned ih = items[i]->get_geometry().h;
272 slider.set_range(0, max_scroll);
273 slider.set_value(max_scroll-first);
276 void List::slider_value_changed(double value)
280 first = max_scroll-static_cast<unsigned>(value);
286 List::DataObserver::DataObserver(List &l):
289 list.data->signal_item_added.connect(sigc::mem_fun(this, &DataObserver::item_added));
290 list.data->signal_item_removed.connect(sigc::mem_fun(this, &DataObserver::item_removed));
291 list.data->signal_cleared.connect(sigc::mem_fun(this, &DataObserver::cleared));
292 list.data->signal_refresh_item.connect(sigc::mem_fun(this, &DataObserver::refresh_item));
295 void List::DataObserver::item_added(unsigned i)
297 if(list.sel_index>=static_cast<int>(i))
300 Item *item = list.create_item(i);
302 list.items.insert(list.items.begin()+i, item);
303 list.items_changed();
306 void List::DataObserver::item_removed(unsigned i)
308 if(list.sel_index>static_cast<int>(i))
310 else if(list.sel_index==static_cast<int>(i))
313 delete list.items[i];
314 list.items.erase(list.items.begin()+i);
315 list.items_changed();
318 void List::DataObserver::cleared()
321 for(vector<Item *>::iterator i=list.items.begin(); i!=list.items.end(); ++i)
324 list.items_changed();
327 void List::DataObserver::refresh_item(unsigned i)
329 delete list.items[i];
330 list.items[i] = list.create_item(i);
331 list.items_changed();
335 void List::Item::autosize_special(const Part &part, Geometry &ageom)
337 if(part.get_name()=="children")
339 const Sides &margin = part.get_margin();
340 for(list<Child *>::const_iterator i=children.begin(); i!=children.end(); ++i)
342 const Geometry &cgeom = (*i)->widget->get_geometry();
343 ageom.w = max(ageom.w, cgeom.x+cgeom.w+margin.right);
344 ageom.h = max(ageom.h, cgeom.y+cgeom.h+margin.top);
349 void List::Item::set_active(bool a)
351 set_state(ACTIVE, (a ? ACTIVE : NORMAL));
354 void List::Item::render_special(const Part &part, GL::Renderer &renderer) const
356 if(part.get_name()=="children")
358 for(list<Child *>::const_iterator i=children.begin(); i!=children.end(); ++i)
359 (*i)->widget->render(renderer);
364 List::BasicItem::BasicItem(const string &text):
370 void List::BasicItem::on_style_change()
376 if(const Part *part = style->get_part("children"))
378 const Sides &margin = part->get_margin();
379 label.set_position(margin.left, margin.bottom);
384 List::Loader::Loader(List &l):
385 DataFile::DerivedObjectLoader<List, Widget::Loader>(l)
387 add("item", &Loader::item);
388 add("view_size", &List::view_size);
391 void List::Loader::item(const string &v)
393 dynamic_cast<BasicListData<string> &>(*obj.data).append(v);