1 #include <msp/core/algorithm.h>
2 #include <msp/core/maputils.h>
3 #include <msp/core/refptr.h>
6 #include "draghandle.h"
11 #include "indicator.h"
26 DataFile::LoadableTypeRegistry<Panel::Loader, Panel::Loader::AddChildType> Panel::widget_registry;
27 bool Panel::widget_registry_init_done = false;
32 input_type = INPUT_NAVIGATION;
41 void Panel::set_layout(Layout *l)
43 l->set_container(*this);
48 void Panel::autosize_special(const Part &part, Geometry &ageom) const
50 if(part.get_name()=="children" && layout)
51 layout->autosize(ageom);
54 void Panel::render_special(const Part &part, GL::Renderer &renderer) const
56 if(part.get_name()=="children")
58 for(list<Container::Child *>::const_iterator i=children.begin(); i!=children.end(); ++i)
59 if((*i)->widget->is_visible())
60 (*i)->widget->render(renderer);
64 bool Panel::navigate(Navigation nav)
66 if(Container::navigate(nav))
69 if(nav==NAV_UP || nav==NAV_DOWN || nav==NAV_LEFT || nav==NAV_RIGHT)
71 int nav_x = (nav==NAV_RIGHT ? 1 : nav==NAV_LEFT ? -1 : 0);
72 int nav_y = (nav==NAV_UP ? 1 : nav==NAV_DOWN ? -1 : 0);
74 int origin_x, origin_y, origin_dim;
77 const Geometry &fgeom = input_focus->get_geometry();
78 origin_x = fgeom.x+(nav_x*0.5+0.5)*fgeom.w;
79 origin_y = fgeom.y+(nav_y*0.5+0.5)*fgeom.h;
80 origin_dim = abs(nav_x)*fgeom.h+abs(nav_y)*fgeom.w;
84 origin_x = geom.w*(0.5-nav_x*0.5);
85 origin_y = geom.h*(0.5-nav_y*0.5);
86 origin_dim = abs(nav_x)*geom.h+abs(nav_y)*geom.w;
89 if(pointer_grabbed && pointer_focus==input_focus)
92 Widget *sibling = find_next_child(origin_x, origin_y, origin_dim, nav_x, nav_y);
93 if(!sibling && input_focus)
95 const Geometry &fgeom = input_focus->get_geometry();
96 origin_x -= fgeom.w*(nav_x*0.5);
97 origin_y -= fgeom.h*(nav_y*0.5);
98 sibling = find_next_child(origin_x, origin_y, origin_dim, nav_x, nav_y);
103 set_input_focus(sibling);
104 if(Panel *panel = dynamic_cast<Panel *>(sibling))
105 panel->navigate(nav);
109 else if(nav==NAV_NEXT || nav==NAV_PREVIOUS)
111 vector<Widget *>::iterator i = find(nav_order, input_focus);
115 if(i!=nav_order.end())
117 if(i==nav_order.end())
118 i = nav_order.begin();
122 if(i==nav_order.begin())
135 Widget *Panel::find_next_child(int origin_x, int origin_y, int origin_dim, int nav_x, int nav_y) const
139 for(list<Child *>::const_iterator i=children.begin(); i!=children.end(); ++i)
141 if((*i)->widget==input_focus || !(*i)->widget->is_focusable())
144 const Geometry &cgeom = (*i)->widget->get_geometry();
145 int dx = compute_delta(cgeom.x, cgeom.w, origin_x, origin_dim, nav_x);
146 int dy = compute_delta(cgeom.y, cgeom.h, origin_y, origin_dim, nav_y);
149 if(nav_y && nav_y*dy>=0)
150 score = nav_y*dy+abs(dx)*4;
151 else if(nav_x && nav_x*dx>=0)
152 score = nav_x*dx+abs(dy)*4;
154 if(score>=0 && (!sibling || score<best_score))
156 sibling = (*i)->widget;
164 int Panel::compute_delta(int pos, int dim, int origin_pos, int origin_dim, int nav)
167 return pos+dim-origin_pos;
169 return pos-origin_pos;
170 else if(pos+dim<origin_pos-origin_dim/2)
171 return pos+dim+origin_dim/2-origin_pos;
172 else if(pos>origin_pos+origin_dim/2)
173 return pos-origin_pos-origin_dim/2;
178 void Panel::on_size_change()
184 void Panel::on_child_added(Widget &wdg)
186 if(wdg.get_input_type()!=INPUT_NONE)
187 nav_order.push_back(&wdg);
191 layout->add_widget(wdg);
192 signal_autosize_changed.emit();
196 void Panel::on_child_removed(Widget &wdg)
198 vector<Widget *>::iterator i = std::remove(nav_order.begin(), nav_order.end(), &wdg);
199 if(i!=nav_order.end())
200 nav_order.erase(i, nav_order.end());
204 layout->remove_widget(wdg);
205 signal_autosize_changed.emit();
210 Panel::Loader::Loader(Panel &p, map<string, Widget *> &m):
211 DataFile::DerivedObjectLoader<Panel, Widget::Loader>(p),
215 if(!widget_registry_init_done)
217 widget_registry_init_done = true;
218 register_child_type<Button>("button");
219 register_child_type<DragHandle>("draghandle");
220 register_child_type<Dropdown>("dropdown");
221 register_child_type<Entry>("entry");
222 register_child_type<HSlider>("hslider");
223 register_child_type<Image>("image");
224 register_child_type<Indicator>("indicator");
225 register_child_type<Label>("label");
226 register_child_type<List>("list");
227 register_child_type<Panel>("panel");
228 register_child_type<Toggle>("toggle");
229 register_child_type<VSlider>("vslider");
232 add("column", &Loader::arrangement<Column>);
233 add("constraint",&Loader::constraint);
234 add("expand", &Loader::expand);
235 add("ghost", &Loader::ghost);
236 add("gravity", &Loader::gravity);
237 add("grid", &Loader::grid);
238 add("layout", &Loader::layout);
239 add("row", &Loader::arrangement<Row>);
240 add("stack", &Loader::arrangement<Stack>);
241 widget_registry.add_all(*this);
244 Layout &Panel::Loader::get_layout()
247 obj.set_layout(new Layout);
252 Widget &Panel::Loader::get_last_widget()
255 throw logic_error("no widget loaded");
261 void Panel::Loader::arrangement()
264 ArrangedLoader<T> ldr(*this, arr);
268 void Panel::Loader::constraint(Layout::ConstraintType type, const string &n)
270 Widget &src = get_last_widget();
271 Widget &tgt = *get_item(wdg_map, n);
272 get_layout().add_constraint(src, type, tgt);
275 void Panel::Loader::expand(bool h, bool v)
277 get_layout().set_expand(get_last_widget(), h, v);
280 void Panel::Loader::ghost(bool g)
282 get_layout().set_ghost(get_last_widget(), g);
285 void Panel::Loader::gravity(int h, int v)
287 get_layout().set_gravity(get_last_widget(), h, v);
290 void Panel::Loader::grid(unsigned cols)
292 Grid grd(get_layout(), cols);
293 ArrangedLoader<Grid> ldr(*this, grd);
297 void Panel::Loader::layout()
299 Layout::Loader ldr(get_layout(), wdg_map);
304 void Panel::Loader::unnamed_child<Panel>()
306 RefPtr<Panel> pnl = new Panel();
307 load_sub(*pnl, wdg_map);
309 last_widget = pnl.release();
314 Panel::ArrangedLoader<T>::ArrangedLoader(Loader &ldr, T &arr):
317 add_auxiliary_loader(ldr);
318 add_auxiliary_loader(arr_loader);