9 hierarchy_error::hierarchy_error(const string &w):
14 Container::Container():
18 pointer_grabbed(false),
22 children_rebuild_needed(false)
25 Container::~Container()
27 while(!children.empty())
28 delete children.front()->widget;
31 void Container::add(Widget &wdg)
34 children.push_back(create_child(&wdg));
35 if(wdg.get_animation_interval())
36 check_animation_interval();
37 children_rebuild_needed = true;
41 void Container::remove(Widget &wdg)
43 for(list<Child *>::iterator i=children.begin(); i!=children.end(); ++i)
44 if((*i)->widget==&wdg)
49 if(wdg.get_animation_interval())
50 check_animation_interval();
51 on_child_removed(wdg);
55 throw hierarchy_error("widget not in container");
58 Container::Child *Container::create_child(Widget *wdg)
60 return new Child(*this, wdg);
63 Geometry Container::determine_child_geometry(const Widget &child, const Part &part) const
65 Geometry pgeom = part.get_geometry();
66 if(!pgeom.w || !pgeom.h)
69 child.autosize(cgeom);
76 part.get_alignment().apply(pgeom, geom, part.get_margin());
80 void Container::autosize_child(const Widget &child, const Part &part, Geometry &ageom) const
82 Geometry cgeom = determine_child_geometry(child, part);
83 const Sides &margin = part.get_margin();
84 ageom.w = max(ageom.w, cgeom.w+margin.left+margin.right);
85 ageom.h = max(ageom.h, cgeom.h+margin.top+margin.bottom);
88 void Container::reposition_child(Widget &child, const Part &part) const
90 child.set_geometry(determine_child_geometry(child, part));
93 list<Widget *> Container::get_children() const
95 list<Widget *> result;
96 for(list<Child *>::const_iterator i=children.begin(); i!=children.end(); ++i)
97 result.push_back((*i)->widget);
101 Widget *Container::get_child_at(int x, int y) const
103 for(list<Child *>::const_iterator i=children.end(); i!=children.begin();)
104 if((*--i)->widget->is_visible() && (*i)->widget->get_geometry().is_inside(x, y))
110 Widget *Container::get_descendant_at(int x, int y) const
112 Widget *wdg = get_child_at(x, y);
113 if(Container *cont = dynamic_cast<Container *>(wdg))
115 const Geometry &cgeom = wdg->get_geometry();
116 Widget *wdg2 = cont->get_descendant_at(x-cgeom.x, y-cgeom.y);
123 void Container::raise(Widget &wdg)
125 for(list<Child *>::iterator i=children.begin(); i!=children.end(); ++i)
126 if((*i)->widget==&wdg)
128 children.splice(children.end(), children, i);
132 throw hierarchy_error("widget not in container");
135 void Container::set_pointer_focus(Widget *wdg, bool grab)
137 if(wdg!=pointer_focus)
140 pointer_focus->pointer_leave();
143 pointer_grabbed = grab;
146 pointer_focus->pointer_enter();
149 pointer_grabbed = grab;
152 void Container::set_input_focus(Widget *wdg)
157 input_focus->focus_out();
160 on_input_focus_changed(input_focus);
163 input_focus->focus_in();
167 Widget *Container::get_final_input_focus() const
169 if(Container *container = dynamic_cast<Container *>(input_focus))
170 if(Widget *focus = container->get_final_input_focus())
176 void Container::check_animation_interval()
178 Time::TimeDelta shortest;
179 for(list<Child *>::const_iterator i=children.begin(); i!=children.end(); ++i)
181 const Time::TimeDelta &child_iv = (*i)->widget->get_animation_interval();
182 if(child_iv && (!shortest || child_iv<shortest))
186 if(shortest!=anim_interval)
187 set_animation_interval(shortest);
190 void Container::rebuild_hierarchy()
192 Widget::rebuild_hierarchy();
194 if(children_rebuild_needed)
196 children_rebuild_needed = false;
197 for(list<Child *>::iterator i=children.begin(); i!=children.end(); ++i)
198 (*i)->widget->rebuild_hierarchy();
202 void Container::button_press(int x, int y, unsigned btn)
204 if(Widget *child = get_pointer_target(x, y, false))
208 set_pointer_focus(child);
209 if(child->is_focusable())
210 set_input_focus(child);
216 const Geometry &cgeom = child->get_geometry();
217 child->button_press(x-cgeom.x, y-cgeom.y, btn);
221 void Container::button_release(int x, int y, unsigned btn)
223 if(Widget *child = get_pointer_target(x, y, false))
225 if(child==click_focus && btn==click_button)
229 set_pointer_focus(get_child_at(x, y));
232 const Geometry &cgeom = child->get_geometry();
233 child->button_release(x-cgeom.x, y-cgeom.y, btn);
237 void Container::pointer_motion(int x, int y)
239 Widget *child = get_pointer_target(x, y, false);
241 set_pointer_focus((child && child->get_geometry().is_inside(x, y)) ? child : 0);
245 const Geometry &cgeom = child->get_geometry();
246 child->pointer_motion(x-cgeom.x, y-cgeom.y);
250 Widget *Container::get_pointer_target(int x, int y, bool touch) const
253 return pointer_focus;
254 else if(!touch && click_focus)
256 else if(touch && touch_focus)
260 Widget *child = get_child_at(x, y);
261 if(child && child->is_enabled())
268 void Container::pointer_leave()
270 Widget::pointer_leave();
271 set_pointer_focus(0);
274 void Container::touch_press(int x, int y, unsigned finger)
276 if(Widget *child = get_pointer_target(x, y, true))
278 // TODO track focus for each finger separately
282 const Geometry &cgeom = child->get_geometry();
283 child->touch_press(x-cgeom.x, y-cgeom.y, finger);
287 void Container::touch_release(int x, int y, unsigned finger)
289 if(Widget *child = get_pointer_target(x, y, true))
291 // TODO track focus for each finger separately
292 if(child==touch_focus)
295 const Geometry &cgeom = child->get_geometry();
296 child->touch_release(x-cgeom.x, y-cgeom.y, finger);
300 void Container::touch_motion(int x, int y, unsigned finger)
302 if(Widget *child = get_pointer_target(x, y, true))
304 const Geometry &cgeom = child->get_geometry();
305 child->touch_motion(x-cgeom.x, y-cgeom.y, finger);
309 bool Container::key_press(unsigned key, unsigned mod)
311 if(input_focus && input_focus->is_enabled())
312 return input_focus->key_press(key, mod);
317 bool Container::key_release(unsigned key, unsigned mod)
319 if(input_focus && input_focus->is_enabled())
320 return input_focus->key_release(key, mod);
325 bool Container::character(wchar_t ch)
327 if(input_focus && input_focus->is_enabled())
328 return input_focus->character(ch);
333 void Container::focus_in()
335 if(saved_input_focus && saved_input_focus->get_parent()==this)
336 set_input_focus(saved_input_focus);
340 void Container::focus_out()
342 saved_input_focus = input_focus;
347 bool Container::navigate(Navigation nav)
349 if(input_focus && input_focus->is_enabled())
350 return input_focus->navigate(nav);
355 void Container::animate(const Time::TimeDelta &dt)
357 for(list<Child *>::iterator i=children.begin(); i!=children.end(); ++i)
359 const Time::TimeDelta &child_iv = (*i)->widget->get_animation_interval();
363 (*i)->time_since_animate += dt;
364 if((*i)->time_since_animate>=child_iv)
366 Time::TimeDelta child_dt = (*i)->time_since_animate;
367 (*i)->time_since_animate = min((*i)->time_since_animate-child_iv, child_iv);
368 (*i)->widget->animate(child_dt);
373 void Container::on_reparent()
375 for(list<Child *>::iterator i=children.begin(); i!=children.end(); ++i)
377 if(Container *c = dynamic_cast<Container *>((*i)->widget))
379 (*i)->widget->update_style();
383 void Container::on_input_focus_changed(Widget *wdg)
390 Container::Child::Child(Container &c, Widget *w):
394 widget->signal_visibility_changed.connect(sigc::mem_fun(this, &Child::visibility_changed));
395 widget->signal_request_focus.connect(sigc::mem_fun(this, &Child::request_focus));
396 widget->signal_grab_pointer.connect(sigc::mem_fun(this, &Child::grab_pointer));
397 widget->signal_ungrab_pointer.connect(sigc::mem_fun(this, &Child::ungrab_pointer));
398 widget->signal_request_animation.connect(sigc::mem_fun(this, &Child::request_animation));
399 widget->signal_rebuild_needed.connect(sigc::mem_fun(this, &Child::rebuild_needed));
402 Container::Child::~Child()
404 visibility_changed(false);
407 void Container::Child::visibility_changed(bool v)
411 if(widget==container.click_focus)
412 container.click_focus = 0;
413 if(widget==container.pointer_focus)
414 container.set_pointer_focus(0);
415 if(widget==container.input_focus)
416 container.set_input_focus(0);
420 void Container::Child::request_focus()
422 if(container.parent && container.visible)
423 container.set_focus();
424 if(container.state&FOCUS)
425 container.set_input_focus(widget);
428 void Container::Child::grab_pointer()
430 if(!container.pointer_grabbed)
432 container.set_pointer_focus(widget, true);
433 container.signal_grab_pointer.emit();
437 void Container::Child::ungrab_pointer()
439 if(container.pointer_grabbed && container.pointer_focus==widget)
441 // XXX Should set to the widget under pointer
442 container.set_pointer_focus(0);
443 container.signal_ungrab_pointer.emit();
447 void Container::Child::request_animation(const Time::TimeDelta &interval)
450 time_since_animate = Time::zero;
451 container.check_animation_interval();
454 void Container::Child::rebuild_needed()
456 container.children_rebuild_needed = true;
457 container.signal_rebuild_needed.emit();