1 #include <msp/gl/font.h>
20 Dropdown::Dropdown(ListData &d):
31 list.set_visible(false);
33 list.signal_item_selected.connect(sigc::mem_fun(this, &Dropdown::list_item_selected));
34 list.signal_autosize_changed.connect(sigc::mem_fun(this, &Dropdown::list_autosize_changed));
37 void Dropdown::autosize_special(const Part &part, Geometry &ageom) const
39 if(part.get_name()=="list")
43 ageom.w = max(ageom.w, list.get_geometry().w);
45 else if(part.get_name()=="text")
47 const Sides &margin = part.get_margin();
48 const GL::Font &font = style->get_font();
49 float font_size = style->get_font_size();
52 const ListData &data = list.get_data();
53 for(unsigned i=0; i<data.size(); ++i)
55 unsigned w = static_cast<unsigned>(font.get_string_width(data.get_string(i))*font_size);
56 max_w = max(max_w, w);
58 ageom.w = max(ageom.w, max_w+margin.left+margin.right);
60 unsigned line_height = static_cast<unsigned>((font.get_ascent()-font.get_descent())*font_size);
61 ageom.h = max(ageom.h, line_height+margin.top+margin.bottom);
65 void Dropdown::rebuild_special(const Part &part)
67 if(part.get_name()=="text")
68 text.build(part, state, geom, part_cache);
70 Widget::rebuild_special(part);
73 void Dropdown::render_special(const Part &part, GL::Renderer &renderer) const
75 if(part.get_name()=="list" && dropped)
76 list.render(renderer);
79 void Dropdown::button_press(int x, int y, unsigned btn)
83 Container::button_press(x, y, btn);
87 list.set_visible(false);
89 signal_ungrab_pointer.emit();
95 list.set_visible(true);
98 signal_grab_pointer.emit();
102 void Dropdown::on_geometry_change()
108 void Dropdown::on_style_change()
110 text.set_style(style);
115 void Dropdown::list_autosize_changed()
119 signal_autosize_changed.emit();
122 void Dropdown::resize_list()
125 list.autosize(lgeom);
128 lgeom.w = max(geom.w, lgeom.w);
131 for(Widget *p=parent; p; p=p->get_parent())
133 root_x += p->get_geometry().x;
134 root_y += p->get_geometry().y;
135 if(Root *root = dynamic_cast<Root *>(p))
137 const Geometry &rgeom = root->get_geometry();
138 if(lgeom.h*2>rgeom.h)
145 if(root_y+lgeom.y+lgeom.h>rgeom.h)
146 lgeom.y = rgeom.h-lgeom.h-root_y;
147 if(root_x+lgeom.x+lgeom.w>rgeom.w)
148 lgeom.x = rgeom.w-lgeom.w-root_x;
152 list.set_geometry(lgeom);
155 void Dropdown::list_item_selected(unsigned index)
161 signal_ungrab_pointer.emit();
164 text.set(list.get_data().get_string(index));
166 signal_item_selected.emit(index);
171 Dropdown::Loader::Loader(Dropdown &d):
172 DataFile::DerivedObjectLoader<Dropdown, Widget::Loader>(d)
174 add("item", &Loader::item);
177 void Dropdown::Loader::item(const string &v)
179 dynamic_cast<BasicListData<string> &>(obj.list.get_data()).append(v);