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;
38 signal_rebuild_needed.emit();
42 void Container::remove(Widget &wdg)
44 for(list<Child *>::iterator i=children.begin(); i!=children.end(); ++i)
45 if((*i)->widget==&wdg)
50 if(wdg.get_animation_interval())
51 check_animation_interval();
52 on_child_removed(wdg);
56 throw hierarchy_error("widget not in container");
59 Container::Child *Container::create_child(Widget *wdg)
61 return new Child(*this, wdg);
64 Geometry Container::determine_child_geometry(const Widget &child, const Part &part) const
66 Geometry pgeom = part.get_geometry();
67 if(!pgeom.w || !pgeom.h)
70 child.autosize(cgeom);
77 part.get_alignment().apply(pgeom, geom, part.get_margin());
81 void Container::autosize_child(const Widget &child, const Part &part, Geometry &ageom) const
83 Geometry cgeom = determine_child_geometry(child, part);
84 const Sides &margin = part.get_margin();
85 ageom.w = max(ageom.w, cgeom.w+margin.left+margin.right);
86 ageom.h = max(ageom.h, cgeom.h+margin.top+margin.bottom);
89 void Container::reposition_child(Widget &child, const Part &part) const
91 child.set_geometry(determine_child_geometry(child, part));
94 list<Widget *> Container::get_children() const
96 list<Widget *> result;
97 for(list<Child *>::const_iterator i=children.begin(); i!=children.end(); ++i)
98 result.push_back((*i)->widget);
102 Widget *Container::get_child_at(int x, int y) const
104 for(list<Child *>::const_iterator i=children.end(); i!=children.begin();)
105 if((*--i)->widget->is_visible() && (*i)->widget->get_geometry().is_inside(x, y))
111 Widget *Container::get_descendant_at(int x, int y) const
113 Widget *wdg = get_child_at(x, y);
114 if(Container *cont = dynamic_cast<Container *>(wdg))
116 const Geometry &cgeom = wdg->get_geometry();
117 Widget *wdg2 = cont->get_descendant_at(x-cgeom.x, y-cgeom.y);
124 void Container::raise(Widget &wdg)
126 for(list<Child *>::iterator i=children.begin(); i!=children.end(); ++i)
127 if((*i)->widget==&wdg)
129 children.splice(children.end(), children, i);
133 throw hierarchy_error("widget not in container");
136 void Container::set_pointer_focus(Widget *wdg, bool grab)
138 if(wdg!=pointer_focus)
141 pointer_focus->pointer_leave();
144 pointer_grabbed = grab;
147 pointer_focus->pointer_enter();
150 pointer_grabbed = grab;
153 void Container::set_input_focus(Widget *wdg)
158 input_focus->focus_out();
161 on_input_focus_changed(input_focus);
164 input_focus->focus_in();
168 Widget *Container::get_final_input_focus() const
170 if(Container *container = dynamic_cast<Container *>(input_focus))
171 if(Widget *focus = container->get_final_input_focus())
177 void Container::check_animation_interval()
179 Time::TimeDelta shortest;
180 for(list<Child *>::const_iterator i=children.begin(); i!=children.end(); ++i)
182 const Time::TimeDelta &child_iv = (*i)->widget->get_animation_interval();
183 if(child_iv && (!shortest || child_iv<shortest))
187 if(shortest!=anim_interval)
188 set_animation_interval(shortest);
191 void Container::rebuild_hierarchy()
193 Widget::rebuild_hierarchy();
195 if(children_rebuild_needed)
197 children_rebuild_needed = false;
198 for(list<Child *>::iterator i=children.begin(); i!=children.end(); ++i)
199 (*i)->widget->rebuild_hierarchy();
203 void Container::button_press(int x, int y, unsigned btn)
205 if(Widget *child = get_pointer_target(x, y, false))
209 set_pointer_focus(child);
210 if(child->is_focusable())
211 set_input_focus(child);
217 const Geometry &cgeom = child->get_geometry();
218 child->button_press(x-cgeom.x, y-cgeom.y, btn);
222 void Container::button_release(int x, int y, unsigned btn)
224 if(Widget *child = get_pointer_target(x, y, false))
226 if(child==click_focus && btn==click_button)
230 set_pointer_focus(get_child_at(x, y));
233 const Geometry &cgeom = child->get_geometry();
234 child->button_release(x-cgeom.x, y-cgeom.y, btn);
238 void Container::pointer_motion(int x, int y)
240 Widget *child = get_pointer_target(x, y, false);
242 set_pointer_focus((child && child->get_geometry().is_inside(x, y)) ? child : 0);
246 const Geometry &cgeom = child->get_geometry();
247 child->pointer_motion(x-cgeom.x, y-cgeom.y);
251 Widget *Container::get_pointer_target(int x, int y, bool touch) const
254 return pointer_focus;
255 else if(!touch && click_focus)
257 else if(touch && touch_focus)
261 Widget *child = get_child_at(x, y);
262 if(child && child->is_enabled())
269 void Container::pointer_leave()
271 Widget::pointer_leave();
272 set_pointer_focus(0);
275 void Container::touch_press(int x, int y, unsigned finger)
277 if(Widget *child = get_pointer_target(x, y, true))
279 // TODO track focus for each finger separately
283 const Geometry &cgeom = child->get_geometry();
284 child->touch_press(x-cgeom.x, y-cgeom.y, finger);
288 void Container::touch_release(int x, int y, unsigned finger)
290 if(Widget *child = get_pointer_target(x, y, true))
292 // TODO track focus for each finger separately
293 if(child==touch_focus)
296 const Geometry &cgeom = child->get_geometry();
297 child->touch_release(x-cgeom.x, y-cgeom.y, finger);
301 void Container::touch_motion(int x, int y, unsigned finger)
303 if(Widget *child = get_pointer_target(x, y, true))
305 const Geometry &cgeom = child->get_geometry();
306 child->touch_motion(x-cgeom.x, y-cgeom.y, finger);
310 bool Container::key_press(unsigned key, unsigned mod)
312 if(input_focus && input_focus->is_enabled())
313 return input_focus->key_press(key, mod);
318 bool Container::key_release(unsigned key, unsigned mod)
320 if(input_focus && input_focus->is_enabled())
321 return input_focus->key_release(key, mod);
326 bool Container::character(wchar_t ch)
328 if(input_focus && input_focus->is_enabled())
329 return input_focus->character(ch);
334 void Container::focus_in()
336 if(saved_input_focus && saved_input_focus->get_parent()==this)
337 set_input_focus(saved_input_focus);
341 void Container::focus_out()
343 saved_input_focus = input_focus;
348 bool Container::navigate(Navigation nav)
350 if(input_focus && input_focus->is_enabled())
351 return input_focus->navigate(nav);
356 void Container::animate(const Time::TimeDelta &dt)
358 for(list<Child *>::iterator i=children.begin(); i!=children.end(); ++i)
360 const Time::TimeDelta &child_iv = (*i)->widget->get_animation_interval();
364 (*i)->time_since_animate += dt;
365 if((*i)->time_since_animate>=child_iv)
367 Time::TimeDelta child_dt = (*i)->time_since_animate;
368 (*i)->time_since_animate = min((*i)->time_since_animate-child_iv, child_iv);
369 (*i)->widget->animate(child_dt);
374 void Container::on_reparent()
376 for(list<Child *>::iterator i=children.begin(); i!=children.end(); ++i)
378 if(Container *c = dynamic_cast<Container *>((*i)->widget))
380 (*i)->widget->update_style();
384 void Container::on_input_focus_changed(Widget *wdg)
391 Container::Child::Child(Container &c, Widget *w):
395 widget->signal_visibility_changed.connect(sigc::mem_fun(this, &Child::visibility_changed));
396 widget->signal_request_focus.connect(sigc::mem_fun(this, &Child::request_focus));
397 widget->signal_grab_pointer.connect(sigc::mem_fun(this, &Child::grab_pointer));
398 widget->signal_ungrab_pointer.connect(sigc::mem_fun(this, &Child::ungrab_pointer));
399 widget->signal_request_animation.connect(sigc::mem_fun(this, &Child::request_animation));
400 widget->signal_rebuild_needed.connect(sigc::mem_fun(this, &Child::rebuild_needed));
403 Container::Child::~Child()
405 visibility_changed(false);
408 void Container::Child::visibility_changed(bool v)
412 if(widget==container.click_focus)
413 container.click_focus = 0;
414 if(widget==container.pointer_focus)
415 container.set_pointer_focus(0);
416 if(widget==container.input_focus)
417 container.set_input_focus(0);
421 void Container::Child::request_focus()
423 if(container.parent && container.visible)
424 container.set_focus();
425 if(container.state&FOCUS)
426 container.set_input_focus(widget);
429 void Container::Child::grab_pointer()
431 if(!container.pointer_grabbed)
433 container.set_pointer_focus(widget, true);
434 container.signal_grab_pointer.emit();
438 void Container::Child::ungrab_pointer()
440 if(container.pointer_grabbed && container.pointer_focus==widget)
442 // XXX Should set to the widget under pointer
443 container.set_pointer_focus(0);
444 container.signal_ungrab_pointer.emit();
448 void Container::Child::request_animation(const Time::TimeDelta &interval)
451 time_since_animate = Time::zero;
452 container.check_animation_interval();
455 void Container::Child::rebuild_needed()
457 container.children_rebuild_needed = true;
458 container.signal_rebuild_needed.emit();