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);
88 void List::items_changed()
91 signal_autosize_changed.emit();
95 List::Item *List::create_item(unsigned index)
97 return new BasicItem(data->get_string(index));
100 void List::set_view_size(unsigned s)
103 signal_autosize_changed.emit();
106 void List::set_view_all()
111 void List::set_selected_index(int i)
113 if(i>static_cast<int>(data->size()))
114 throw out_of_range("List::set_selected_index");
117 items[sel_index]->set_active(false);
123 items[sel_index]->set_active(true);
124 signal_item_selected.emit(sel_index);
128 void List::render_special(const Part &part, GL::Renderer &renderer) const
130 if(part.get_name()=="items")
132 for(unsigned i=first; (i<items.size() && items[i]->is_visible()); ++i)
133 items[i]->render(renderer);
135 else if(part.get_name()=="slider")
136 slider.render(renderer);
139 void List::button_press(int x, int y, unsigned btn)
141 Container::button_press(x, y, btn);
142 if(click_focus && btn==1)
144 for(unsigned i=first; (i<items.size() && items[i]->is_visible()); ++i)
145 if(click_focus==items[i])
147 set_selected_index(i);
153 void List::on_geometry_change()
161 void List::on_style_change()
172 void List::reposition_slider()
177 if(const Part *slider_part = style->get_part("slider"))
179 Geometry sgeom = slider_part->get_geometry();
180 slider_part->get_alignment().apply(sgeom, geom, slider_part->get_margin());
181 slider.set_geometry(sgeom);
185 void List::reposition_items()
190 if(const Part *items_part = style->get_part("items"))
192 const Sides &margin = items_part->get_margin();
193 unsigned w = geom.w-margin.left-margin.right;
194 unsigned y = geom.h-margin.top;
195 for(unsigned i=0; i<items.size(); ++i)
198 items[i]->set_visible(false);
201 Geometry igeom = items[i]->get_geometry();
202 if(igeom.h+margin.bottom<=y)
204 items[i]->set_visible(true);
206 igeom.x = margin.left;
209 items[i]->set_geometry(igeom);
213 items[i]->set_visible(false);
221 void List::check_view_range()
227 if(const Part *items_part = style->get_part("items"))
229 const Sides &margin = items_part->get_margin();
230 h -= margin.top+margin.bottom;
233 max_scroll = items.size();
234 for(unsigned i=items.size(); i-->0; )
236 unsigned ih = items[i]->get_geometry().h;
247 slider.set_range(0, max_scroll);
248 slider.set_value(max_scroll-first);
251 void List::slider_value_changed(double value)
255 first = max_scroll-static_cast<unsigned>(value);
261 List::DataObserver::DataObserver(List &l):
264 list.data->signal_item_added.connect(sigc::mem_fun(this, &DataObserver::item_added));
265 list.data->signal_item_removed.connect(sigc::mem_fun(this, &DataObserver::item_removed));
266 list.data->signal_cleared.connect(sigc::mem_fun(this, &DataObserver::cleared));
267 list.data->signal_refresh_strings.connect(sigc::mem_fun(this, &DataObserver::refresh_strings));
270 void List::DataObserver::item_added(unsigned i)
272 if(list.sel_index>=static_cast<int>(i))
275 Item *item = list.create_item(i);
277 list.items.insert(list.items.begin()+i, item);
278 list.items_changed();
281 void List::DataObserver::item_removed(unsigned i)
283 if(list.sel_index>static_cast<int>(i))
285 else if(list.sel_index==static_cast<int>(i))
288 delete list.items[i];
289 list.items.erase(list.items.begin()+i);
290 list.items_changed();
293 void List::DataObserver::cleared()
296 for(vector<Item *>::iterator i=list.items.begin(); i!=list.items.end(); ++i)
299 list.items_changed();
302 void List::DataObserver::refresh_strings()
304 list.items_changed();
308 void List::Item::autosize_special(const Part &part, Geometry &ageom)
310 if(part.get_name()=="children")
312 const Sides &margin = part.get_margin();
313 for(list<Child *>::const_iterator i=children.begin(); i!=children.end(); ++i)
315 const Geometry &cgeom = (*i)->widget->get_geometry();
316 ageom.w = max(ageom.w, cgeom.x+cgeom.w+margin.right);
317 ageom.h = max(ageom.h, cgeom.y+cgeom.h+margin.top);
322 void List::Item::set_active(bool a)
324 set_state(ACTIVE, (a ? ACTIVE : NORMAL));
327 void List::Item::render_special(const Part &part, GL::Renderer &renderer) const
329 if(part.get_name()=="children")
331 for(list<Child *>::const_iterator i=children.begin(); i!=children.end(); ++i)
332 (*i)->widget->render(renderer);
337 List::BasicItem::BasicItem(const string &text):
343 void List::BasicItem::on_style_change()
349 if(const Part *part = style->get_part("children"))
351 const Sides &margin = part->get_margin();
352 label.set_position(margin.left, margin.bottom);
357 List::Loader::Loader(List &l):
358 DataFile::DerivedObjectLoader<List, Widget::Loader>(l)
360 add("item", &Loader::item);
363 void List::Loader::item(const string &v)
365 dynamic_cast<BasicListData<string> &>(*obj.data).append(v);