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 float font_size = style->get_font()->get_default_size();
46 for(vector<string>::iterator i=items.begin(); i!=items.end(); ++i)
48 unsigned w = static_cast<unsigned>(style->get_font()->get_string_width(*i)*font_size);
49 max_w = max(max_w, w);
52 geom.w = max(geom.w, max_w+margin.left+margin.right);
53 geom.h = max(geom.h, n*row_height+margin.top+margin.bottom);
56 if(const Part *slider_part = style->get_part("slider"))
58 Geometry sgeom = slider_part->get_geometry();
59 if(!sgeom.w || !sgeom.h)
63 sgeom.w = slider.get_geometry().w;
65 sgeom.h = slider.get_geometry().h;
68 const Sides &margin = slider_part->get_margin();
69 geom.w = max(geom.w, sgeom.w+margin.left+margin.right);
70 geom.h = max(geom.h, sgeom.h+margin.top+margin.bottom);
78 void List::autosize_all()
80 autosize_rows(items.size());
83 void List::append(const string &v)
87 signal_autosize_changed.emit();
90 void List::insert(unsigned i, const string &v)
93 throw out_of_range("List::insert");
95 items.insert(items.begin()+i, v);
97 signal_autosize_changed.emit();
100 void List::remove(unsigned i)
103 throw out_of_range("List::remove");
105 items.erase(items.begin()+i);
106 if(sel_index>static_cast<int>(i))
108 else if(sel_index==static_cast<int>(i))
112 signal_autosize_changed.emit();
121 signal_autosize_changed.emit();
124 void List::set_selected_index(int i)
128 else if(i<static_cast<int>(items.size()))
131 signal_item_selected.emit(sel_index, items[sel_index]);
134 throw out_of_range("List::set_selected_index");
137 const string &List::get_selected() const
140 throw logic_error("sel_index<0");
142 return items[sel_index];
145 void List::render_special(const Part &part) const
147 if(part.get_name()=="items")
149 const Sides &margin = part.get_margin();
150 Geometry pgeom = geom;
151 pgeom.h = row_height+margin.top+margin.bottom;
153 GL::PushMatrix push_mtx;
154 GL::translate(0, geom.h-pgeom.h, 0);
156 for(unsigned i=0; (i<n_visible && first+i<items.size()); ++i)
159 GL::translate(0, -static_cast<int>(row_height), 0);
160 Text(*style, items[first+i]).render(part, pgeom);
163 else if(part.get_name()=="selection")
165 if(sel_index>=static_cast<int>(first) && sel_index<static_cast<int>(first+n_visible))
167 const Sides &margin = part.get_margin();
169 Geometry pgeom = geom;
170 pgeom.h = row_height;
171 pgeom.w -= margin.left+margin.right;
173 Geometry rgeom = part.get_geometry();
174 rgeom.y += geom.h-margin.top-row_height*(sel_index-first+1);
175 rgeom.x += margin.left;
176 part.get_alignment().apply(rgeom, pgeom);
179 GL::translate(rgeom.x, rgeom.y, 0);
180 part.get_graphic(state)->render(rgeom.w, rgeom.h);
184 else if(part.get_name()=="slider")
188 void List::button_press(int x, int y, unsigned btn)
190 Container::button_press(x, y, btn);
191 if(!click_focus && btn==1)
194 y += items_part->get_margin().top;
196 unsigned i = (geom.h-1-y)/row_height;
197 if(i<n_visible && first+i<items.size())
201 signal_item_selected.emit(sel_index, items[sel_index]);
206 void List::on_geometry_change()
213 void List::on_style_change()
223 items_part = style->get_part("items");
225 const GL::Font &font = *style->get_font();
226 row_height = static_cast<unsigned>((font.get_ascent()-font.get_descent())*font.get_default_size());
231 void List::reposition_slider()
236 if(const Part *slider_part = style->get_part("slider"))
238 Geometry sgeom = slider_part->get_geometry();
239 slider_part->get_alignment().apply(sgeom, geom, slider_part->get_margin());
240 slider.set_geometry(sgeom);
244 void List::check_view_range()
249 const Sides &margin = items_part->get_margin();
250 h -= margin.top+margin.bottom;
253 n_visible = h/row_height;
255 if(first+n_visible>items.size())
257 if(items.size()>n_visible)
258 first = items.size()-n_visible;
263 if(items.size()>n_visible)
265 slider.set_range(0, items.size()-n_visible);
266 slider.set_value(items.size()-n_visible-first);
270 slider.set_range(0, 0);
275 void List::slider_value_changed(double value)
277 if(items.size()>n_visible)
278 first = items.size()-n_visible-static_cast<unsigned>(value);
282 List::Loader::Loader(List &l):
285 add("item", &Loader::item);
288 void List::Loader::item(const string &v)
290 dynamic_cast<List &>(obj).append(v);