1 #include <msp/gl/matrix.h>
2 #include <msp/gl/meshbuilder.h>
16 data(new BasicListData<string>),
22 List::List(ListData &d):
35 observer = new DataObserver(*this);
39 slider.signal_value_changed.connect(sigc::mem_fun(this, &List::slider_value_changed));
54 void List::autosize_rows(unsigned n)
61 if(const Part *items_part = style->get_part("items"))
63 const Sides &margin = items_part->get_margin();
67 for(unsigned i=0; i<items.size(); ++i)
70 const Geometry &igeom = items[i]->get_geometry();
71 max_w = max(max_w, igeom.w);
76 if(!items.empty() && items.size()<n)
77 total_h = total_h*n/items.size();
79 geom.w = max(geom.w, max_w+margin.left+margin.right);
80 geom.h = max(geom.h, total_h+margin.top+margin.bottom);
87 void List::autosize_all()
89 autosize_rows(data->size());
92 void List::set_data(ListData &d)
100 observer = new DataObserver(*this);
105 void List::items_changed()
108 signal_autosize_changed.emit();
112 List::Item *List::create_item(unsigned index)
114 return new BasicItem(data->get_string(index));
117 void List::set_selected_index(int i)
119 if(i>static_cast<int>(data->size()))
120 throw out_of_range("List::set_selected_index");
123 items[sel_index]->set_active(false);
129 items[sel_index]->set_active(true);
130 signal_item_selected.emit(sel_index);
134 void List::render_special(const Part &part, GL::Renderer &renderer) const
136 if(part.get_name()=="items")
138 for(unsigned i=first; (i<items.size() && items[i]->is_visible()); ++i)
139 items[i]->render(renderer);
141 else if(part.get_name()=="slider")
142 slider.render(renderer);
145 void List::button_press(int x, int y, unsigned btn)
147 Container::button_press(x, y, btn);
148 if(click_focus && btn==1)
150 for(unsigned i=first; (i<items.size() && items[i]->is_visible()); ++i)
151 if(click_focus==items[i])
153 set_selected_index(i);
159 void List::on_geometry_change()
167 void List::on_style_change()
178 void List::reposition_slider()
183 if(const Part *slider_part = style->get_part("slider"))
185 Geometry sgeom = slider_part->get_geometry();
186 slider_part->get_alignment().apply(sgeom, geom, slider_part->get_margin());
187 slider.set_geometry(sgeom);
191 void List::reposition_items()
196 if(const Part *items_part = style->get_part("items"))
198 const Sides &margin = items_part->get_margin();
199 unsigned w = geom.w-margin.left-margin.right;
200 unsigned y = geom.h-margin.top;
201 for(unsigned i=0; i<items.size(); ++i)
204 items[i]->set_visible(false);
207 Geometry igeom = items[i]->get_geometry();
208 if(igeom.h+margin.bottom<=y)
210 items[i]->set_visible(true);
212 igeom.x = margin.left;
215 items[i]->set_geometry(igeom);
219 items[i]->set_visible(false);
227 void List::check_view_range()
233 if(const Part *items_part = style->get_part("items"))
235 const Sides &margin = items_part->get_margin();
236 h -= margin.top+margin.bottom;
239 max_scroll = items.size();
240 for(unsigned i=items.size(); i-->0; )
242 unsigned ih = items[i]->get_geometry().h;
253 slider.set_range(0, max_scroll);
254 slider.set_value(max_scroll-first);
257 void List::slider_value_changed(double value)
261 first = max_scroll-static_cast<unsigned>(value);
267 List::DataObserver::DataObserver(List &l):
270 list.data->signal_item_added.connect(sigc::mem_fun(this, &DataObserver::item_added));
271 list.data->signal_item_removed.connect(sigc::mem_fun(this, &DataObserver::item_removed));
272 list.data->signal_cleared.connect(sigc::mem_fun(this, &DataObserver::cleared));
273 list.data->signal_refresh_strings.connect(sigc::mem_fun(this, &DataObserver::refresh_strings));
276 void List::DataObserver::item_added(unsigned i)
278 if(list.sel_index>=static_cast<int>(i))
281 Item *item = list.create_item(i);
283 list.items.insert(list.items.begin()+i, item);
284 list.items_changed();
287 void List::DataObserver::item_removed(unsigned i)
289 if(list.sel_index>static_cast<int>(i))
291 else if(list.sel_index==static_cast<int>(i))
294 delete list.items[i];
295 list.items.erase(list.items.begin()+i);
296 list.items_changed();
299 void List::DataObserver::cleared()
302 for(vector<Item *>::iterator i=list.items.begin(); i!=list.items.end(); ++i)
305 list.items_changed();
308 void List::DataObserver::refresh_strings()
310 list.items_changed();
314 void List::Item::autosize()
318 if(const Part *part = style->get_part("children"))
320 const Sides &margin = part->get_margin();
321 for(list<Child *>::const_iterator i=children.begin(); i!=children.end(); ++i)
323 const Geometry &cgeom = (*i)->widget->get_geometry();
324 geom.w = max(geom.w, cgeom.x+cgeom.w+margin.right);
325 geom.h = max(geom.h, cgeom.y+cgeom.h+margin.top);
330 void List::Item::set_active(bool a)
332 set_state(ACTIVE, (a ? ACTIVE : NORMAL));
335 void List::Item::render_special(const Part &part, GL::Renderer &renderer) const
337 if(part.get_name()=="children")
339 for(list<Child *>::const_iterator i=children.begin(); i!=children.end(); ++i)
340 (*i)->widget->render(renderer);
345 List::BasicItem::BasicItem(const string &text):
351 void List::BasicItem::on_style_change()
357 if(const Part *part = style->get_part("children"))
359 const Sides &margin = part->get_margin();
360 label.set_position(margin.left, margin.bottom);
365 List::Loader::Loader(List &l):
366 DataFile::DerivedObjectLoader<List, Widget::Loader>(l)
368 add("item", &Loader::item);
371 void List::Loader::item(const string &v)
373 dynamic_cast<BasicListData<string> &>(*obj.data).append(v);