1 #include <msp/core/algorithm.h>
10 hierarchy_error::hierarchy_error(const string &w):
15 Container::~Container()
17 while(!children.empty())
18 delete children.front()->widget;
21 void Container::add(Widget &wdg)
24 children.push_back(make_unique<Child>(*this, &wdg));
25 if(wdg.get_animation_interval())
26 check_animation_interval();
27 children_rebuild_needed = true;
28 signal_rebuild_needed.emit();
32 void Container::remove(Widget &wdg)
34 auto i = find_if(children, [&wdg](const unique_ptr<Child> &c){ return c->widget==&wdg; });
36 throw hierarchy_error("widget not in container");
38 if(&wdg==saved_input_focus)
39 saved_input_focus = nullptr;
40 wdg.set_parent(nullptr);
42 if(wdg.get_animation_interval())
43 check_animation_interval();
44 on_child_removed(wdg);
47 Geometry Container::determine_child_geometry(const Widget &child, const Part &part) const
49 Geometry pgeom = part.get_geometry();
50 if(!pgeom.w || !pgeom.h)
53 child.autosize(cgeom);
60 part.get_alignment().apply(pgeom, geom, part.get_margin());
64 void Container::autosize_child(const Widget &child, const Part &part, Geometry &ageom) const
66 Geometry cgeom = determine_child_geometry(child, part);
67 const Sides &margin = part.get_margin();
68 ageom.w = max(ageom.w, cgeom.w+margin.left+margin.right);
69 ageom.h = max(ageom.h, cgeom.h+margin.top+margin.bottom);
72 void Container::reposition_child(Widget &child, const Part &part) const
74 child.set_geometry(determine_child_geometry(child, part));
77 vector<Widget *> Container::get_children() const
79 vector<Widget *> result;
80 for(const unique_ptr<Child> &c: children)
81 result.push_back(c->widget);
85 Widget *Container::find_child_at(int x, int y) const
87 for(auto i=children.end(); i!=children.begin();)
88 if((*--i)->widget->is_visible() && (*i)->widget->get_geometry().is_inside(x, y))
94 Widget *Container::find_descendant_at(int x, int y) const
96 Widget *wdg = find_child_at(x, y);
97 if(Container *cont = dynamic_cast<Container *>(wdg))
99 const Geometry &cgeom = wdg->get_geometry();
100 if(Widget *wdg2 = cont->find_descendant_at(x-cgeom.x, y-cgeom.y))
106 void Container::raise(Widget &wdg)
108 auto i = find_if(children, [&wdg](const unique_ptr<Child> &c){ return c->widget==&wdg; });
109 if(i==children.end())
110 throw hierarchy_error("widget not in container");
112 unique_ptr<Child> c = move(*i);
114 children.push_back(move(c));
117 void Container::set_pointer_focus(Widget *wdg, bool grab)
119 if(wdg!=pointer_focus)
122 pointer_focus->pointer_leave();
125 pointer_grabbed = grab;
128 pointer_focus->pointer_enter();
131 pointer_grabbed = grab;
134 void Container::set_input_focus(Widget *wdg)
139 input_focus->focus_out();
142 on_input_focus_changed(input_focus);
145 input_focus->focus_in();
149 Widget *Container::get_final_input_focus() const
151 if(Container *container = dynamic_cast<Container *>(input_focus))
152 if(Widget *focus = container->get_final_input_focus())
158 void Container::check_animation_interval()
160 Time::TimeDelta shortest;
161 for(const unique_ptr<Child> &c: children)
163 const Time::TimeDelta &child_iv = c->widget->get_animation_interval();
164 if(child_iv && (!shortest || child_iv<shortest))
168 if(shortest!=anim_interval)
169 set_animation_interval(shortest);
172 void Container::rebuild_hierarchy()
174 Widget::rebuild_hierarchy();
176 if(children_rebuild_needed)
178 children_rebuild_needed = false;
179 for(const unique_ptr<Child> &c: children)
180 c->widget->rebuild_hierarchy();
184 void Container::button_press(int x, int y, unsigned btn)
186 if(Widget *child = get_pointer_target(x, y, false))
190 set_pointer_focus(child);
191 if(child->is_focusable())
192 set_input_focus(child);
198 const Geometry &cgeom = child->get_geometry();
199 child->button_press(x-cgeom.x, y-cgeom.y, btn);
203 void Container::button_release(int x, int y, unsigned btn)
205 if(Widget *child = get_pointer_target(x, y, false))
207 if(child==click_focus && btn==click_button)
209 click_focus = nullptr;
211 set_pointer_focus(find_child_at(x, y));
214 const Geometry &cgeom = child->get_geometry();
215 child->button_release(x-cgeom.x, y-cgeom.y, btn);
219 void Container::pointer_motion(int x, int y)
221 Widget *child = get_pointer_target(x, y, false);
223 set_pointer_focus((child && child->get_geometry().is_inside(x, y)) ? child : nullptr);
227 const Geometry &cgeom = child->get_geometry();
228 child->pointer_motion(x-cgeom.x, y-cgeom.y);
232 Widget *Container::get_pointer_target(int x, int y, bool touch) const
235 return pointer_focus;
236 else if(!touch && click_focus)
238 else if(touch && touch_focus)
242 Widget *child = find_child_at(x, y);
243 if(child && child->is_enabled())
250 void Container::pointer_leave()
252 Widget::pointer_leave();
253 set_pointer_focus(nullptr);
256 void Container::touch_press(int x, int y, unsigned finger)
258 if(Widget *child = get_pointer_target(x, y, true))
260 // TODO track focus for each finger separately
264 const Geometry &cgeom = child->get_geometry();
265 child->touch_press(x-cgeom.x, y-cgeom.y, finger);
269 void Container::touch_release(int x, int y, unsigned finger)
271 if(Widget *child = get_pointer_target(x, y, true))
273 // TODO track focus for each finger separately
274 if(child==touch_focus)
275 touch_focus = nullptr;
277 const Geometry &cgeom = child->get_geometry();
278 child->touch_release(x-cgeom.x, y-cgeom.y, finger);
282 void Container::touch_motion(int x, int y, unsigned finger)
284 if(Widget *child = get_pointer_target(x, y, true))
286 const Geometry &cgeom = child->get_geometry();
287 child->touch_motion(x-cgeom.x, y-cgeom.y, finger);
291 bool Container::key_press(unsigned key, unsigned mod)
293 if(input_focus && input_focus->is_enabled())
294 return input_focus->key_press(key, mod);
299 bool Container::key_release(unsigned key, unsigned mod)
301 if(input_focus && input_focus->is_enabled())
302 return input_focus->key_release(key, mod);
307 bool Container::character(wchar_t ch)
309 if(input_focus && input_focus->is_enabled())
310 return input_focus->character(ch);
315 void Container::focus_in()
317 if(saved_input_focus)
318 set_input_focus(saved_input_focus);
322 void Container::focus_out()
324 saved_input_focus = input_focus;
325 set_input_focus(nullptr);
329 bool Container::navigate(Navigation nav)
331 if(input_focus && input_focus->is_enabled())
332 return input_focus->navigate(nav);
337 void Container::animate(const Time::TimeDelta &dt)
339 for(const unique_ptr<Child> &c: children)
341 const Time::TimeDelta &child_iv = c->widget->get_animation_interval();
345 c->time_since_animate += dt;
346 if(c->time_since_animate>=child_iv)
348 Time::TimeDelta child_dt = c->time_since_animate;
349 c->time_since_animate = min(c->time_since_animate-child_iv, child_iv);
350 c->widget->animate(child_dt);
355 void Container::on_reparent()
357 for(const unique_ptr<Child> &c: children)
359 if(Container *o = dynamic_cast<Container *>(c->widget))
361 c->widget->update_style();
365 void Container::on_input_focus_changed(Widget *wdg)
372 Container::Child::Child(Container &c, Widget *w):
376 widget->signal_visibility_changed.connect(sigc::mem_fun(this, &Child::visibility_changed));
377 widget->signal_request_focus.connect(sigc::mem_fun(this, &Child::request_focus));
378 widget->signal_grab_pointer.connect(sigc::mem_fun(this, &Child::grab_pointer));
379 widget->signal_ungrab_pointer.connect(sigc::mem_fun(this, &Child::ungrab_pointer));
380 widget->signal_request_animation.connect(sigc::mem_fun(this, &Child::request_animation));
381 widget->signal_rebuild_needed.connect(sigc::mem_fun(this, &Child::rebuild_needed));
384 Container::Child::~Child()
386 visibility_changed(false);
389 void Container::Child::visibility_changed(bool v)
393 if(widget==container.click_focus)
394 container.click_focus = nullptr;
395 if(widget==container.pointer_focus)
396 container.set_pointer_focus(nullptr);
397 if(widget==container.input_focus)
398 container.set_input_focus(nullptr);
402 void Container::Child::request_focus()
404 if(container.parent && container.visible)
405 container.set_focus();
406 if(container.state&FOCUS)
407 container.set_input_focus(widget);
410 void Container::Child::grab_pointer()
412 if(!container.pointer_grabbed)
414 container.set_pointer_focus(widget, true);
415 container.signal_grab_pointer.emit();
419 void Container::Child::ungrab_pointer()
421 if(container.pointer_grabbed && container.pointer_focus==widget)
423 // XXX Should set to the widget under pointer
424 container.set_pointer_focus(nullptr);
425 container.signal_ungrab_pointer.emit();
429 void Container::Child::request_animation(const Time::TimeDelta &interval)
432 time_since_animate = Time::zero;
433 container.check_animation_interval();
436 void Container::Child::rebuild_needed()
438 container.children_rebuild_needed = true;
439 container.signal_rebuild_needed.emit();