1 #include <msp/gl/immediate.h>
2 #include <msp/gl/matrix.h>
3 #include <msp/gl/transform.h>
25 slider.signal_value_changed.connect(sigc::mem_fun(this, &List::slider_value_changed));
33 void List::autosize_rows(unsigned n)
42 const Sides &margin = items_part->get_margin();
43 const GL::Font &font = style->get_font();
44 float font_size = style->get_font_size();
47 for(vector<string>::iterator i=items.begin(); i!=items.end(); ++i)
49 unsigned w = static_cast<unsigned>(font.get_string_width(*i)*font_size);
50 max_w = max(max_w, w);
53 geom.w = max(geom.w, max_w+margin.left+margin.right);
54 geom.h = max(geom.h, n*row_height+margin.top+margin.bottom);
57 if(const Part *slider_part = style->get_part("slider"))
59 Geometry sgeom = slider_part->get_geometry();
60 if(!sgeom.w || !sgeom.h)
64 sgeom.w = slider.get_geometry().w;
66 sgeom.h = slider.get_geometry().h;
69 const Sides &margin = slider_part->get_margin();
70 geom.w = max(geom.w, sgeom.w+margin.left+margin.right);
71 geom.h = max(geom.h, sgeom.h+margin.top+margin.bottom);
79 void List::autosize_all()
81 autosize_rows(items.size());
84 void List::append(const string &v)
88 signal_autosize_changed.emit();
91 void List::insert(unsigned i, const string &v)
94 throw out_of_range("List::insert");
96 items.insert(items.begin()+i, v);
98 signal_autosize_changed.emit();
101 void List::remove(unsigned i)
104 throw out_of_range("List::remove");
106 items.erase(items.begin()+i);
107 if(sel_index>static_cast<int>(i))
109 else if(sel_index==static_cast<int>(i))
113 signal_autosize_changed.emit();
122 signal_autosize_changed.emit();
125 void List::set_selected_index(int i)
129 else if(i<static_cast<int>(items.size()))
132 signal_item_selected.emit(sel_index, items[sel_index]);
135 throw out_of_range("List::set_selected_index");
138 const string &List::get_selected() const
141 throw logic_error("sel_index<0");
143 return items[sel_index];
146 void List::render_special(const Part &part) const
148 if(part.get_name()=="items")
150 const Sides &margin = part.get_margin();
151 Geometry pgeom = geom;
152 pgeom.h = row_height+margin.top+margin.bottom;
154 GL::PushMatrix push_mtx;
155 GL::translate(0, geom.h-pgeom.h, 0);
157 for(unsigned i=0; (i<n_visible && first+i<items.size()); ++i)
160 GL::translate(0, -static_cast<int>(row_height), 0);
161 Text(*style, items[first+i]).render(part, pgeom);
164 else if(part.get_name()=="selection")
166 if(sel_index>=static_cast<int>(first) && sel_index<static_cast<int>(first+n_visible))
168 const Sides &margin = part.get_margin();
170 Geometry pgeom = geom;
171 pgeom.h = row_height;
172 pgeom.w -= margin.left+margin.right;
174 Geometry rgeom = part.get_geometry();
175 rgeom.y += geom.h-margin.top-row_height*(sel_index-first+1);
176 rgeom.x += margin.left;
177 part.get_alignment().apply(rgeom, pgeom);
180 GL::translate(rgeom.x, rgeom.y, 0);
181 part.get_graphic(state)->render(rgeom.w, rgeom.h);
185 else if(part.get_name()=="slider")
189 void List::button_press(int x, int y, unsigned btn)
191 Container::button_press(x, y, btn);
192 if(!click_focus && btn==1)
195 y += items_part->get_margin().top;
197 unsigned i = (geom.h-1-y)/row_height;
198 if(i<n_visible && first+i<items.size())
202 signal_item_selected.emit(sel_index, items[sel_index]);
207 void List::on_geometry_change()
214 void List::on_style_change()
224 items_part = style->get_part("items");
226 const GL::Font &font = style->get_font();
227 row_height = static_cast<unsigned>((font.get_ascent()-font.get_descent())*style->get_font_size());
232 void List::reposition_slider()
237 if(const Part *slider_part = style->get_part("slider"))
239 Geometry sgeom = slider_part->get_geometry();
240 slider_part->get_alignment().apply(sgeom, geom, slider_part->get_margin());
241 slider.set_geometry(sgeom);
245 void List::check_view_range()
250 const Sides &margin = items_part->get_margin();
251 h -= margin.top+margin.bottom;
254 n_visible = h/row_height;
256 if(first+n_visible>items.size())
258 if(items.size()>n_visible)
259 first = items.size()-n_visible;
264 if(items.size()>n_visible)
266 slider.set_range(0, items.size()-n_visible);
267 slider.set_value(items.size()-n_visible-first);
271 slider.set_range(0, 0);
276 void List::slider_value_changed(double value)
278 if(items.size()>n_visible)
279 first = items.size()-n_visible-static_cast<unsigned>(value);
283 List::Loader::Loader(List &l):
286 add("item", &Loader::item);
289 void List::Loader::item(const string &v)
291 dynamic_cast<List &>(obj).append(v);