1 #include <msp/gl/font.h>
20 Dropdown::Dropdown(ListData &d):
31 list.signal_item_selected.connect(sigc::mem_fun(this, &Dropdown::list_item_selected));
32 list.signal_autosize_changed.connect(sigc::mem_fun(this, &Dropdown::list_autosize_changed));
35 void Dropdown::autosize()
42 geom.w = max(geom.w, list.get_geometry().w);
44 if(const Part *text_part = style->get_part("text"))
46 const Sides &margin = text_part->get_margin();
47 const GL::Font &font = style->get_font();
48 float font_size = style->get_font_size();
51 const ListData &data = list.get_data();
52 for(unsigned i=0; i<data.size(); ++i)
54 unsigned w = static_cast<unsigned>(font.get_string_width(data.get_string(i))*font_size);
55 max_w = max(max_w, w);
57 geom.w = max(geom.w, max_w+margin.left+margin.right);
59 unsigned line_height = static_cast<unsigned>((font.get_ascent()-font.get_descent())*font_size);
60 geom.h = max(geom.h, line_height+margin.top+margin.bottom);
66 void Dropdown::rebuild_special(const Part &part, CachedPart &cache)
68 if(part.get_name()=="text")
70 int sel = list.get_selected_index();
72 Text(*style, list.get_data().get_string(sel)).build(part, geom, cache);
78 void Dropdown::render_special(const Part &part, GL::Renderer &renderer) const
80 if(part.get_name()=="list" && dropped)
81 list.render(renderer);
84 void Dropdown::button_press(int x, int y, unsigned btn)
88 Container::button_press(x, y, btn);
93 signal_ungrab_pointer.emit();
100 signal_grab_pointer.emit();
104 void Dropdown::on_geometry_change()
109 void Dropdown::on_style_change()
114 void Dropdown::list_autosize_changed()
117 signal_autosize_changed.emit();
120 void Dropdown::resize_list()
123 Geometry lgeom = list.get_geometry();
126 lgeom.w = max(geom.w, lgeom.w);
129 for(Widget *p=parent; p; p=p->get_parent())
131 root_x += p->get_geometry().x;
132 root_y += p->get_geometry().y;
133 if(Root *root = dynamic_cast<Root *>(p))
135 const Geometry &rgeom = root->get_geometry();
136 if(lgeom.h*2>rgeom.h)
140 if(root_y+lgeom.y+lgeom.h>rgeom.h)
141 lgeom.y = rgeom.h-lgeom.h-root_y;
142 if(root_x+lgeom.x+lgeom.w>rgeom.w)
143 lgeom.x = rgeom.w-lgeom.w-root_x;
147 list.set_geometry(lgeom);
150 void Dropdown::list_item_selected(unsigned index)
156 signal_ungrab_pointer.emit();
159 signal_item_selected.emit(index);
164 Dropdown::Loader::Loader(Dropdown &d):
165 DataFile::DerivedObjectLoader<Dropdown, Widget::Loader>(d)
167 add("item", &Loader::item);
170 void Dropdown::Loader::item(const string &v)
172 dynamic_cast<BasicListData<string> &>(obj.list.get_data()).append(v);