1 #include <msp/core/algorithm.h>
10 hierarchy_error::hierarchy_error(const string &w):
15 Container::Container():
19 pointer_grabbed(false),
23 children_rebuild_needed(false)
26 Container::~Container()
28 while(!children.empty())
29 delete children.front()->widget;
32 void Container::add(Widget &wdg)
35 children.push_back(create_child(&wdg));
36 if(wdg.get_animation_interval())
37 check_animation_interval();
38 children_rebuild_needed = true;
39 signal_rebuild_needed.emit();
43 void Container::remove(Widget &wdg)
45 auto i = find_if(children, [&wdg](const Child *c){ return c->widget==&wdg; });
47 throw hierarchy_error("widget not in container");
52 if(wdg.get_animation_interval())
53 check_animation_interval();
54 on_child_removed(wdg);
57 Container::Child *Container::create_child(Widget *wdg)
59 return new Child(*this, wdg);
62 Geometry Container::determine_child_geometry(const Widget &child, const Part &part) const
64 Geometry pgeom = part.get_geometry();
65 if(!pgeom.w || !pgeom.h)
68 child.autosize(cgeom);
75 part.get_alignment().apply(pgeom, geom, part.get_margin());
79 void Container::autosize_child(const Widget &child, const Part &part, Geometry &ageom) const
81 Geometry cgeom = determine_child_geometry(child, part);
82 const Sides &margin = part.get_margin();
83 ageom.w = max(ageom.w, cgeom.w+margin.left+margin.right);
84 ageom.h = max(ageom.h, cgeom.h+margin.top+margin.bottom);
87 void Container::reposition_child(Widget &child, const Part &part) const
89 child.set_geometry(determine_child_geometry(child, part));
92 list<Widget *> Container::get_children() const
94 list<Widget *> result;
95 for(const Child *c: children)
96 result.push_back(c->widget);
100 Widget *Container::get_child_at(int x, int y) const
102 for(auto i=children.end(); i!=children.begin();)
103 if((*--i)->widget->is_visible() && (*i)->widget->get_geometry().is_inside(x, y))
109 Widget *Container::get_descendant_at(int x, int y) const
111 Widget *wdg = get_child_at(x, y);
112 if(Container *cont = dynamic_cast<Container *>(wdg))
114 const Geometry &cgeom = wdg->get_geometry();
115 Widget *wdg2 = cont->get_descendant_at(x-cgeom.x, y-cgeom.y);
122 void Container::raise(Widget &wdg)
124 auto i = find_if(children, [&wdg](const Child *c){ return c->widget==&wdg; });
125 if(i==children.end())
126 throw hierarchy_error("widget not in container");
128 children.splice(children.end(), children, i);
131 void Container::set_pointer_focus(Widget *wdg, bool grab)
133 if(wdg!=pointer_focus)
136 pointer_focus->pointer_leave();
139 pointer_grabbed = grab;
142 pointer_focus->pointer_enter();
145 pointer_grabbed = grab;
148 void Container::set_input_focus(Widget *wdg)
153 input_focus->focus_out();
156 on_input_focus_changed(input_focus);
159 input_focus->focus_in();
163 Widget *Container::get_final_input_focus() const
165 if(Container *container = dynamic_cast<Container *>(input_focus))
166 if(Widget *focus = container->get_final_input_focus())
172 void Container::check_animation_interval()
174 Time::TimeDelta shortest;
175 for(const Child *c: children)
177 const Time::TimeDelta &child_iv = c->widget->get_animation_interval();
178 if(child_iv && (!shortest || child_iv<shortest))
182 if(shortest!=anim_interval)
183 set_animation_interval(shortest);
186 void Container::rebuild_hierarchy()
188 Widget::rebuild_hierarchy();
190 if(children_rebuild_needed)
192 children_rebuild_needed = false;
193 for(Child *c: children)
194 c->widget->rebuild_hierarchy();
198 void Container::button_press(int x, int y, unsigned btn)
200 if(Widget *child = get_pointer_target(x, y, false))
204 set_pointer_focus(child);
205 if(child->is_focusable())
206 set_input_focus(child);
212 const Geometry &cgeom = child->get_geometry();
213 child->button_press(x-cgeom.x, y-cgeom.y, btn);
217 void Container::button_release(int x, int y, unsigned btn)
219 if(Widget *child = get_pointer_target(x, y, false))
221 if(child==click_focus && btn==click_button)
225 set_pointer_focus(get_child_at(x, y));
228 const Geometry &cgeom = child->get_geometry();
229 child->button_release(x-cgeom.x, y-cgeom.y, btn);
233 void Container::pointer_motion(int x, int y)
235 Widget *child = get_pointer_target(x, y, false);
237 set_pointer_focus((child && child->get_geometry().is_inside(x, y)) ? child : 0);
241 const Geometry &cgeom = child->get_geometry();
242 child->pointer_motion(x-cgeom.x, y-cgeom.y);
246 Widget *Container::get_pointer_target(int x, int y, bool touch) const
249 return pointer_focus;
250 else if(!touch && click_focus)
252 else if(touch && touch_focus)
256 Widget *child = get_child_at(x, y);
257 if(child && child->is_enabled())
264 void Container::pointer_leave()
266 Widget::pointer_leave();
267 set_pointer_focus(0);
270 void Container::touch_press(int x, int y, unsigned finger)
272 if(Widget *child = get_pointer_target(x, y, true))
274 // TODO track focus for each finger separately
278 const Geometry &cgeom = child->get_geometry();
279 child->touch_press(x-cgeom.x, y-cgeom.y, finger);
283 void Container::touch_release(int x, int y, unsigned finger)
285 if(Widget *child = get_pointer_target(x, y, true))
287 // TODO track focus for each finger separately
288 if(child==touch_focus)
291 const Geometry &cgeom = child->get_geometry();
292 child->touch_release(x-cgeom.x, y-cgeom.y, finger);
296 void Container::touch_motion(int x, int y, unsigned finger)
298 if(Widget *child = get_pointer_target(x, y, true))
300 const Geometry &cgeom = child->get_geometry();
301 child->touch_motion(x-cgeom.x, y-cgeom.y, finger);
305 bool Container::key_press(unsigned key, unsigned mod)
307 if(input_focus && input_focus->is_enabled())
308 return input_focus->key_press(key, mod);
313 bool Container::key_release(unsigned key, unsigned mod)
315 if(input_focus && input_focus->is_enabled())
316 return input_focus->key_release(key, mod);
321 bool Container::character(wchar_t ch)
323 if(input_focus && input_focus->is_enabled())
324 return input_focus->character(ch);
329 void Container::focus_in()
331 if(saved_input_focus && saved_input_focus->get_parent()==this)
332 set_input_focus(saved_input_focus);
336 void Container::focus_out()
338 saved_input_focus = input_focus;
343 bool Container::navigate(Navigation nav)
345 if(input_focus && input_focus->is_enabled())
346 return input_focus->navigate(nav);
351 void Container::animate(const Time::TimeDelta &dt)
353 for(Child *c: children)
355 const Time::TimeDelta &child_iv = c->widget->get_animation_interval();
359 c->time_since_animate += dt;
360 if(c->time_since_animate>=child_iv)
362 Time::TimeDelta child_dt = c->time_since_animate;
363 c->time_since_animate = min(c->time_since_animate-child_iv, child_iv);
364 c->widget->animate(child_dt);
369 void Container::on_reparent()
371 for(const Child *c: children)
373 if(Container *o = dynamic_cast<Container *>(c->widget))
375 c->widget->update_style();
379 void Container::on_input_focus_changed(Widget *wdg)
386 Container::Child::Child(Container &c, Widget *w):
390 widget->signal_visibility_changed.connect(sigc::mem_fun(this, &Child::visibility_changed));
391 widget->signal_request_focus.connect(sigc::mem_fun(this, &Child::request_focus));
392 widget->signal_grab_pointer.connect(sigc::mem_fun(this, &Child::grab_pointer));
393 widget->signal_ungrab_pointer.connect(sigc::mem_fun(this, &Child::ungrab_pointer));
394 widget->signal_request_animation.connect(sigc::mem_fun(this, &Child::request_animation));
395 widget->signal_rebuild_needed.connect(sigc::mem_fun(this, &Child::rebuild_needed));
398 Container::Child::~Child()
400 visibility_changed(false);
403 void Container::Child::visibility_changed(bool v)
407 if(widget==container.click_focus)
408 container.click_focus = 0;
409 if(widget==container.pointer_focus)
410 container.set_pointer_focus(0);
411 if(widget==container.input_focus)
412 container.set_input_focus(0);
416 void Container::Child::request_focus()
418 if(container.parent && container.visible)
419 container.set_focus();
420 if(container.state&FOCUS)
421 container.set_input_focus(widget);
424 void Container::Child::grab_pointer()
426 if(!container.pointer_grabbed)
428 container.set_pointer_focus(widget, true);
429 container.signal_grab_pointer.emit();
433 void Container::Child::ungrab_pointer()
435 if(container.pointer_grabbed && container.pointer_focus==widget)
437 // XXX Should set to the widget under pointer
438 container.set_pointer_focus(0);
439 container.signal_ungrab_pointer.emit();
443 void Container::Child::request_animation(const Time::TimeDelta &interval)
446 time_since_animate = Time::zero;
447 container.check_animation_interval();
450 void Container::Child::rebuild_needed()
452 container.children_rebuild_needed = true;
453 container.signal_rebuild_needed.emit();