1 #include <msp/gl/matrix.h>
2 #include <msp/gl/meshbuilder.h>
16 data(new BasicListData<string>),
22 List::List(ListData &d):
36 observer = new DataObserver(*this);
40 slider.signal_value_changed.connect(sigc::mem_fun(this, &List::slider_value_changed));
50 void List::autosize_special(const Part &part, Geometry &ageom)
52 if(part.get_name()=="items")
54 const Sides &margin = part.get_margin();
58 for(unsigned i=0; i<items.size(); ++i)
61 const Geometry &igeom = items[i]->get_geometry();
62 max_w = max(max_w, igeom.w);
63 if(view_size==0 || i<view_size)
67 if(!items.empty() && items.size()<view_size)
68 total_h = total_h*view_size/items.size();
70 ageom.w = max(ageom.w, max_w+margin.left+margin.right);
71 ageom.h = max(ageom.h, total_h+margin.top+margin.bottom);
75 void List::set_data(ListData &d)
83 observer = new DataObserver(*this);
85 for(vector<Item *>::iterator i=items.begin(); i!=items.end(); ++i)
88 unsigned n_items = data->size();
89 for(unsigned i=0; i<n_items; ++i)
91 Item *item = create_item(i);
93 items.push_back(item);
99 void List::items_changed()
102 signal_autosize_changed.emit();
106 List::Item *List::create_item(unsigned index)
108 return new BasicItem(data->get_string(index));
111 void List::set_view_size(unsigned s)
114 signal_autosize_changed.emit();
117 void List::set_view_all()
122 void List::set_selected_index(int i)
124 if(i>static_cast<int>(data->size()))
125 throw out_of_range("List::set_selected_index");
128 items[sel_index]->set_active(false);
131 else if(i!=sel_index)
134 items[sel_index]->set_active(true);
135 signal_item_selected.emit(sel_index);
139 void List::render_special(const Part &part, GL::Renderer &renderer) const
141 if(part.get_name()=="items")
143 for(unsigned i=first; (i<items.size() && items[i]->is_visible()); ++i)
144 items[i]->render(renderer);
146 else if(part.get_name()=="slider")
147 slider.render(renderer);
150 void List::button_press(int x, int y, unsigned btn)
152 Container::button_press(x, y, btn);
153 if(click_focus && btn==1)
155 for(unsigned i=first; (i<items.size() && items[i]->is_visible()); ++i)
156 if(click_focus==items[i])
158 set_selected_index(i);
164 void List::on_geometry_change()
172 void List::on_style_change()
183 void List::reposition_slider()
188 if(const Part *slider_part = style->get_part("slider"))
190 Geometry sgeom = slider_part->get_geometry();
191 slider_part->get_alignment().apply(sgeom, geom, slider_part->get_margin());
192 slider.set_geometry(sgeom);
196 void List::reposition_items()
201 if(const Part *items_part = style->get_part("items"))
203 const Sides &margin = items_part->get_margin();
204 unsigned w = geom.w-margin.left-margin.right;
205 unsigned y = geom.h-margin.top;
206 for(unsigned i=0; i<items.size(); ++i)
209 items[i]->set_visible(false);
212 Geometry igeom = items[i]->get_geometry();
213 if(igeom.h+margin.bottom<=y)
215 items[i]->set_visible(true);
217 igeom.x = margin.left;
220 items[i]->set_geometry(igeom);
224 items[i]->set_visible(false);
232 void List::check_view_range()
238 if(const Part *items_part = style->get_part("items"))
240 const Sides &margin = items_part->get_margin();
241 h -= margin.top+margin.bottom;
244 max_scroll = items.size();
245 for(unsigned i=items.size(); i-->0; )
247 unsigned ih = items[i]->get_geometry().h;
258 slider.set_range(0, max_scroll);
259 slider.set_value(max_scroll-first);
262 void List::slider_value_changed(double value)
266 first = max_scroll-static_cast<unsigned>(value);
272 List::DataObserver::DataObserver(List &l):
275 list.data->signal_item_added.connect(sigc::mem_fun(this, &DataObserver::item_added));
276 list.data->signal_item_removed.connect(sigc::mem_fun(this, &DataObserver::item_removed));
277 list.data->signal_cleared.connect(sigc::mem_fun(this, &DataObserver::cleared));
278 list.data->signal_refresh_strings.connect(sigc::mem_fun(this, &DataObserver::refresh_strings));
281 void List::DataObserver::item_added(unsigned i)
283 if(list.sel_index>=static_cast<int>(i))
286 Item *item = list.create_item(i);
288 list.items.insert(list.items.begin()+i, item);
289 list.items_changed();
292 void List::DataObserver::item_removed(unsigned i)
294 if(list.sel_index>static_cast<int>(i))
296 else if(list.sel_index==static_cast<int>(i))
299 delete list.items[i];
300 list.items.erase(list.items.begin()+i);
301 list.items_changed();
304 void List::DataObserver::cleared()
307 for(vector<Item *>::iterator i=list.items.begin(); i!=list.items.end(); ++i)
310 list.items_changed();
313 void List::DataObserver::refresh_strings()
315 list.items_changed();
319 void List::Item::autosize_special(const Part &part, Geometry &ageom)
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)
326 const Geometry &cgeom = (*i)->widget->get_geometry();
327 ageom.w = max(ageom.w, cgeom.x+cgeom.w+margin.right);
328 ageom.h = max(ageom.h, cgeom.y+cgeom.h+margin.top);
333 void List::Item::set_active(bool a)
335 set_state(ACTIVE, (a ? ACTIVE : NORMAL));
338 void List::Item::render_special(const Part &part, GL::Renderer &renderer) const
340 if(part.get_name()=="children")
342 for(list<Child *>::const_iterator i=children.begin(); i!=children.end(); ++i)
343 (*i)->widget->render(renderer);
348 List::BasicItem::BasicItem(const string &text):
354 void List::BasicItem::on_style_change()
360 if(const Part *part = style->get_part("children"))
362 const Sides &margin = part->get_margin();
363 label.set_position(margin.left, margin.bottom);
368 List::Loader::Loader(List &l):
369 DataFile::DerivedObjectLoader<List, Widget::Loader>(l)
371 add("item", &Loader::item);
372 add("view_size", &List::view_size);
375 void List::Loader::item(const string &v)
377 dynamic_cast<BasicListData<string> &>(*obj.data).append(v);