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(new 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 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);
43 if(wdg.get_animation_interval())
44 check_animation_interval();
45 on_child_removed(wdg);
48 Geometry Container::determine_child_geometry(const Widget &child, const Part &part) const
50 Geometry pgeom = part.get_geometry();
51 if(!pgeom.w || !pgeom.h)
54 child.autosize(cgeom);
61 part.get_alignment().apply(pgeom, geom, part.get_margin());
65 void Container::autosize_child(const Widget &child, const Part &part, Geometry &ageom) const
67 Geometry cgeom = determine_child_geometry(child, part);
68 const Sides &margin = part.get_margin();
69 ageom.w = max(ageom.w, cgeom.w+margin.left+margin.right);
70 ageom.h = max(ageom.h, cgeom.h+margin.top+margin.bottom);
73 void Container::reposition_child(Widget &child, const Part &part) const
75 child.set_geometry(determine_child_geometry(child, part));
78 vector<Widget *> Container::get_children() const
80 vector<Widget *> result;
81 for(const Child *c: children)
82 result.push_back(c->widget);
86 Widget *Container::find_child_at(int x, int y) const
88 for(auto i=children.end(); i!=children.begin();)
89 if((*--i)->widget->is_visible() && (*i)->widget->get_geometry().is_inside(x, y))
95 Widget *Container::find_descendant_at(int x, int y) const
97 Widget *wdg = find_child_at(x, y);
98 if(Container *cont = dynamic_cast<Container *>(wdg))
100 const Geometry &cgeom = wdg->get_geometry();
101 if(Widget *wdg2 = cont->find_descendant_at(x-cgeom.x, y-cgeom.y))
107 void Container::raise(Widget &wdg)
109 auto i = find_if(children, [&wdg](const Child *c){ return c->widget==&wdg; });
110 if(i==children.end())
111 throw hierarchy_error("widget not in container");
115 children.push_back(c);
118 void Container::set_pointer_focus(Widget *wdg, bool grab)
120 if(wdg!=pointer_focus)
123 pointer_focus->pointer_leave();
126 pointer_grabbed = grab;
129 pointer_focus->pointer_enter();
132 pointer_grabbed = grab;
135 void Container::set_input_focus(Widget *wdg)
140 input_focus->focus_out();
143 on_input_focus_changed(input_focus);
146 input_focus->focus_in();
150 Widget *Container::get_final_input_focus() const
152 if(Container *container = dynamic_cast<Container *>(input_focus))
153 if(Widget *focus = container->get_final_input_focus())
159 void Container::check_animation_interval()
161 Time::TimeDelta shortest;
162 for(const Child *c: children)
164 const Time::TimeDelta &child_iv = c->widget->get_animation_interval();
165 if(child_iv && (!shortest || child_iv<shortest))
169 if(shortest!=anim_interval)
170 set_animation_interval(shortest);
173 void Container::rebuild_hierarchy()
175 Widget::rebuild_hierarchy();
177 if(children_rebuild_needed)
179 children_rebuild_needed = false;
180 for(Child *c: children)
181 c->widget->rebuild_hierarchy();
185 void Container::button_press(int x, int y, unsigned btn)
187 if(Widget *child = get_pointer_target(x, y, false))
191 set_pointer_focus(child);
192 if(child->is_focusable())
193 set_input_focus(child);
199 const Geometry &cgeom = child->get_geometry();
200 child->button_press(x-cgeom.x, y-cgeom.y, btn);
204 void Container::button_release(int x, int y, unsigned btn)
206 if(Widget *child = get_pointer_target(x, y, false))
208 if(child==click_focus && btn==click_button)
210 click_focus = nullptr;
212 set_pointer_focus(find_child_at(x, y));
215 const Geometry &cgeom = child->get_geometry();
216 child->button_release(x-cgeom.x, y-cgeom.y, btn);
220 void Container::pointer_motion(int x, int y)
222 Widget *child = get_pointer_target(x, y, false);
224 set_pointer_focus((child && child->get_geometry().is_inside(x, y)) ? child : nullptr);
228 const Geometry &cgeom = child->get_geometry();
229 child->pointer_motion(x-cgeom.x, y-cgeom.y);
233 Widget *Container::get_pointer_target(int x, int y, bool touch) const
236 return pointer_focus;
237 else if(!touch && click_focus)
239 else if(touch && touch_focus)
243 Widget *child = find_child_at(x, y);
244 if(child && child->is_enabled())
251 void Container::pointer_leave()
253 Widget::pointer_leave();
254 set_pointer_focus(nullptr);
257 void Container::touch_press(int x, int y, unsigned finger)
259 if(Widget *child = get_pointer_target(x, y, true))
261 // TODO track focus for each finger separately
265 const Geometry &cgeom = child->get_geometry();
266 child->touch_press(x-cgeom.x, y-cgeom.y, finger);
270 void Container::touch_release(int x, int y, unsigned finger)
272 if(Widget *child = get_pointer_target(x, y, true))
274 // TODO track focus for each finger separately
275 if(child==touch_focus)
276 touch_focus = nullptr;
278 const Geometry &cgeom = child->get_geometry();
279 child->touch_release(x-cgeom.x, y-cgeom.y, finger);
283 void Container::touch_motion(int x, int y, unsigned finger)
285 if(Widget *child = get_pointer_target(x, y, true))
287 const Geometry &cgeom = child->get_geometry();
288 child->touch_motion(x-cgeom.x, y-cgeom.y, finger);
292 bool Container::key_press(unsigned key, unsigned mod)
294 if(input_focus && input_focus->is_enabled())
295 return input_focus->key_press(key, mod);
300 bool Container::key_release(unsigned key, unsigned mod)
302 if(input_focus && input_focus->is_enabled())
303 return input_focus->key_release(key, mod);
308 bool Container::character(wchar_t ch)
310 if(input_focus && input_focus->is_enabled())
311 return input_focus->character(ch);
316 void Container::focus_in()
318 if(saved_input_focus)
319 set_input_focus(saved_input_focus);
323 void Container::focus_out()
325 saved_input_focus = input_focus;
326 set_input_focus(nullptr);
330 bool Container::navigate(Navigation nav)
332 if(input_focus && input_focus->is_enabled())
333 return input_focus->navigate(nav);
338 void Container::animate(const Time::TimeDelta &dt)
340 for(Child *c: children)
342 const Time::TimeDelta &child_iv = c->widget->get_animation_interval();
346 c->time_since_animate += dt;
347 if(c->time_since_animate>=child_iv)
349 Time::TimeDelta child_dt = c->time_since_animate;
350 c->time_since_animate = min(c->time_since_animate-child_iv, child_iv);
351 c->widget->animate(child_dt);
356 void Container::on_reparent()
358 for(const Child *c: children)
360 if(Container *o = dynamic_cast<Container *>(c->widget))
362 c->widget->update_style();
366 void Container::on_input_focus_changed(Widget *wdg)
373 Container::Child::Child(Container &c, Widget *w):
377 widget->signal_visibility_changed.connect(sigc::mem_fun(this, &Child::visibility_changed));
378 widget->signal_request_focus.connect(sigc::mem_fun(this, &Child::request_focus));
379 widget->signal_grab_pointer.connect(sigc::mem_fun(this, &Child::grab_pointer));
380 widget->signal_ungrab_pointer.connect(sigc::mem_fun(this, &Child::ungrab_pointer));
381 widget->signal_request_animation.connect(sigc::mem_fun(this, &Child::request_animation));
382 widget->signal_rebuild_needed.connect(sigc::mem_fun(this, &Child::rebuild_needed));
385 Container::Child::~Child()
387 visibility_changed(false);
390 void Container::Child::visibility_changed(bool v)
394 if(widget==container.click_focus)
395 container.click_focus = nullptr;
396 if(widget==container.pointer_focus)
397 container.set_pointer_focus(nullptr);
398 if(widget==container.input_focus)
399 container.set_input_focus(nullptr);
403 void Container::Child::request_focus()
405 if(container.parent && container.visible)
406 container.set_focus();
407 if(container.state&FOCUS)
408 container.set_input_focus(widget);
411 void Container::Child::grab_pointer()
413 if(!container.pointer_grabbed)
415 container.set_pointer_focus(widget, true);
416 container.signal_grab_pointer.emit();
420 void Container::Child::ungrab_pointer()
422 if(container.pointer_grabbed && container.pointer_focus==widget)
424 // XXX Should set to the widget under pointer
425 container.set_pointer_focus(nullptr);
426 container.signal_ungrab_pointer.emit();
430 void Container::Child::request_animation(const Time::TimeDelta &interval)
433 time_since_animate = Time::zero;
434 container.check_animation_interval();
437 void Container::Child::rebuild_needed()
439 container.children_rebuild_needed = true;
440 container.signal_rebuild_needed.emit();