X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fcontainer.cpp;h=f1f1934c071d724caaf17086076ccde92c111369;hb=HEAD;hp=2ce2c5efc367213c584197d158c1327b6a2eda4b;hpb=0af3c2393bd00f39db3bfaf5b78a7a44f0fd5ff1;p=libs%2Fgltk.git

diff --git a/source/container.cpp b/source/container.cpp
index 2ce2c5e..f1f1934 100644
--- a/source/container.cpp
+++ b/source/container.cpp
@@ -1,148 +1,386 @@
-/* $Id$
-
-This file is part of libmspgltk
-Copyright © 2009  Mikko Rasa, Mikkosoft Productions
-Distributed under the LGPL
-*/
-
+#include <msp/core/algorithm.h>
 #include "container.h"
+#include "part.h"
 
 using namespace std;
 
 namespace Msp {
 namespace GLtk {
 
-Container::Container(const Resources &r):
-	Widget(r),
-	click_focus(0),
-	click_button(0)
+hierarchy_error::hierarchy_error(const string &w):
+	logic_error(w)
 { }
 
+
 Container::~Container()
 {
+	// Clear children here while members are still valid
 	while(!children.empty())
-		delete children.front()->widget;
+	{
+		if(children.back()->own_widget)
+			/* Avoid destroying the unique_ptr for the widget from within its own
+			reset() function */
+			unique_ptr<Widget> w = move(children.back()->own_widget);
+		else
+			children.pop_back();
+	}
 }
 
-void Container::add(Widget &wdg)
+void Container::add(unique_ptr<Widget> wdg)
 {
-	set_parent(wdg, this);
-	children.push_back(create_child(&wdg));
+	add_child(*wdg).own_widget = move(wdg);
 }
 
 void Container::remove(Widget &wdg)
 {
-	for(list<Child *>::iterator i=children.begin(); i!=children.end(); ++i)
-		if((*i)->widget==&wdg)
-		{
-			set_parent(wdg, 0);
-			delete *i;
-			children.erase(i);
-			return;
-		}
+	auto i = find_if(children, [&wdg](const unique_ptr<Child> &c){ return c->widget==&wdg; });
+	if(i==children.end())
+		throw hierarchy_error("widget not in container");
+
+	unique_ptr<Widget> owned = move((*i)->own_widget);
+	if(&wdg==saved_input_focus)
+		saved_input_focus = nullptr;
+	wdg.set_parent(nullptr);
+	children.erase(i);
+	if(wdg.get_animation_interval())
+		check_animation_interval();
+	on_child_removed(wdg);
+}
+
+Container::Child &Container::add_child(Widget &wdg)
+{
+	wdg.set_parent(this);
+	children.push_back(make_unique<Child>(*this, &wdg));
+	if(wdg.get_animation_interval())
+		check_animation_interval();
+	children_rebuild_needed = true;
+	signal_rebuild_needed.emit();
+	on_child_added(wdg);
+	return *children.back();
+}
+
+Geometry Container::determine_child_geometry(const Widget &child, const Part &part) const
+{
+	Geometry pgeom = part.get_geometry();
+	if(!pgeom.w || !pgeom.h)
+	{
+		Geometry cgeom;
+		child.autosize(cgeom);
+		if(!pgeom.w)
+			pgeom.w = cgeom.w;
+		if(!pgeom.h)
+			pgeom.h = cgeom.h;
+	}
+
+	part.get_alignment().apply(pgeom, geom, part.get_margin());
+	return pgeom;
+}
 
-	throw InvalidState("That Widget is not in this Container");
+void Container::autosize_child(const Widget &child, const Part &part, Geometry &ageom) const
+{
+	Geometry cgeom = determine_child_geometry(child, part);
+	const Sides &margin = part.get_margin();
+	ageom.w = max(ageom.w, cgeom.w+margin.left+margin.right);
+	ageom.h = max(ageom.h, cgeom.h+margin.top+margin.bottom);
 }
 
-list<Widget *> Container::get_children() const
+void Container::reposition_child(Widget &child, const Part &part) const
 {
-	list<Widget *> result;
-	for(list<Child *>::const_iterator i=children.begin(); i!=children.end(); ++i)
-		result.push_back((*i)->widget);
+	child.set_geometry(determine_child_geometry(child, part));
+}
+
+vector<Widget *> Container::get_children() const
+{
+	vector<Widget *> result;
+	for(const unique_ptr<Child> &c: children)
+		result.push_back(c->widget);
 	return result;
 }
 
-Widget *Container::get_child_at(int x, int y)
+Widget *Container::find_child_at(int x, int y) const
 {
-	for(list<Child *>::iterator i=children.end(); i!=children.begin();)
+	for(auto i=children.end(); i!=children.begin();)
 		if((*--i)->widget->is_visible() && (*i)->widget->get_geometry().is_inside(x, y))
 			return (*i)->widget;
 
-	return 0;
+	return nullptr;
 }
 
-Widget *Container::get_descendant_at(int x, int y)
+Widget *Container::find_descendant_at(int x, int y) const
 {
-	Widget *wdg = get_child_at(x, y);
+	Widget *wdg = find_child_at(x, y);
 	if(Container *cont = dynamic_cast<Container *>(wdg))
 	{
 		const Geometry &cgeom = wdg->get_geometry();
-		Widget *wdg2 = cont->get_descendant_at(x-cgeom.x, y-cgeom.y);
-		if(wdg2)
+		if(Widget *wdg2 = cont->find_descendant_at(x-cgeom.x, y-cgeom.y))
 			return wdg2;
 	}
 	return wdg;
 }
 
-void Container::button_press(int x, int y, unsigned btn)
+void Container::raise(Widget &wdg)
+{
+	auto i = find_if(children, [&wdg](const unique_ptr<Child> &c){ return c->widget==&wdg; });
+	if(i==children.end())
+		throw hierarchy_error("widget not in container");
+
+	unique_ptr<Child> c = move(*i);
+	children.erase(i);
+	children.push_back(move(c));
+}
+
+void Container::set_pointer_focus(Widget *wdg, bool grab)
 {
-	if(click_focus)
+	if(wdg!=pointer_focus)
 	{
-		const Geometry &cgeom = click_focus->get_geometry();
-		click_focus->button_press(x-cgeom.x, y-cgeom.y, btn);
+		if(pointer_focus)
+			pointer_focus->pointer_leave();
+
+		pointer_focus = wdg;
+		pointer_grabbed = grab;
+
+		if(pointer_focus)
+			pointer_focus->pointer_enter();
 	}
 	else
+		pointer_grabbed = grab;
+}
+
+void Container::set_input_focus(Widget *wdg)
+{
+	if(wdg!=input_focus)
+	{
+		if(input_focus)
+			input_focus->focus_out();
+
+		input_focus = wdg;
+		on_input_focus_changed(input_focus);
+
+		if(input_focus)
+			input_focus->focus_in();
+	}
+}
+
+Widget *Container::get_final_input_focus() const
+{
+	if(Container *container = dynamic_cast<Container *>(input_focus))
+		if(Widget *focus = container->get_final_input_focus())
+			return focus;
+
+	return input_focus;
+}
+
+void Container::check_animation_interval()
+{
+	Time::TimeDelta shortest;
+	for(const unique_ptr<Child> &c: children)
+	{
+		const Time::TimeDelta &child_iv = c->widget->get_animation_interval();
+		if(child_iv && (!shortest || child_iv<shortest))
+			shortest = child_iv;
+	}
+
+	if(shortest!=anim_interval)
+		set_animation_interval(shortest);
+}
+
+void Container::rebuild_hierarchy()
+{
+	Widget::rebuild_hierarchy();
+
+	if(children_rebuild_needed)
+	{
+		children_rebuild_needed = false;
+		for(const unique_ptr<Child> &c: children)
+			c->widget->rebuild_hierarchy();
+	}
+}
+
+void Container::button_press(int x, int y, unsigned btn)
+{
+	if(Widget *child = get_pointer_target(x, y, false))
 	{
-		if(Widget *wdg = get_child_at(x, y))
+		if(!click_focus)
 		{
-			click_focus = wdg;
-			click_button = btn;
+			set_pointer_focus(child);
+			if(child->is_focusable())
+				set_input_focus(child);
 
-			const Geometry &cgeom = wdg->get_geometry();
-			wdg->button_press(x-cgeom.x, y-cgeom.y, btn);
+			click_focus = child;
+			click_button = btn;
 		}
+
+		const Geometry &cgeom = child->get_geometry();
+		child->button_press(x-cgeom.x, y-cgeom.y, btn);
 	}
 }
 
 void Container::button_release(int x, int y, unsigned btn)
 {
-	if(click_focus)
+	if(Widget *child = get_pointer_target(x, y, false))
 	{
-		Widget *wdg = click_focus;
+		if(child==click_focus && btn==click_button)
+		{
+			click_focus = nullptr;
+			if(!pointer_focus)
+				set_pointer_focus(find_child_at(x, y));
+		}
+
+		const Geometry &cgeom = child->get_geometry();
+		child->button_release(x-cgeom.x, y-cgeom.y, btn);
+	}
+}
 
-		if(btn==click_button)
-			click_focus = 0;
+void Container::pointer_motion(int x, int y)
+{
+	Widget *child = get_pointer_target(x, y, false);
+	if(!pointer_grabbed)
+		set_pointer_focus((child && child->get_geometry().is_inside(x, y)) ? child : nullptr);
 
-		const Geometry &cgeom = wdg->get_geometry();
-		wdg->button_release(x-cgeom.x, y-cgeom.y, btn);
+	if(child)
+	{
+		const Geometry &cgeom = child->get_geometry();
+		child->pointer_motion(x-cgeom.x, y-cgeom.y);
 	}
+}
+
+Widget *Container::get_pointer_target(int x, int y, bool touch) const
+{
+	if(pointer_grabbed)
+		return pointer_focus;
+	else if(!touch && click_focus)
+		return click_focus;
+	else if(touch && touch_focus)
+		return touch_focus;
 	else
 	{
-		if(Widget *wdg = get_child_at(x, y))
-		{
-			const Geometry &cgeom = wdg->get_geometry();
-			wdg->button_release(x-cgeom.x, y-cgeom.y, btn);
-		}
+		Widget *child = find_child_at(x, y);
+		if(child && child->is_enabled())
+			return child;
+		else
+			return nullptr;
 	}
 }
 
-void Container::pointer_motion(int x, int y)
+void Container::pointer_leave()
+{
+	Widget::pointer_leave();
+	set_pointer_focus(nullptr);
+}
+
+void Container::touch_press(int x, int y, unsigned finger)
+{
+	if(Widget *child = get_pointer_target(x, y, true))
+	{
+		// TODO track focus for each finger separately
+		if(!touch_focus)
+			touch_focus = child;
+
+		const Geometry &cgeom = child->get_geometry();
+		child->touch_press(x-cgeom.x, y-cgeom.y, finger);
+	}
+}
+
+void Container::touch_release(int x, int y, unsigned finger)
+{
+	if(Widget *child = get_pointer_target(x, y, true))
+	{
+		// TODO track focus for each finger separately
+		if(child==touch_focus)
+			touch_focus = nullptr;
+
+		const Geometry &cgeom = child->get_geometry();
+		child->touch_release(x-cgeom.x, y-cgeom.y, finger);
+	}
+}
+
+void Container::touch_motion(int x, int y, unsigned finger)
 {
-	if(click_focus)
+	if(Widget *child = get_pointer_target(x, y, true))
 	{
-		const Geometry &cgeom = click_focus->get_geometry();
-		click_focus->pointer_motion(x-cgeom.x, y-cgeom.y);
+		const Geometry &cgeom = child->get_geometry();
+		child->touch_motion(x-cgeom.x, y-cgeom.y, finger);
 	}
+}
+
+bool Container::key_press(unsigned key, unsigned mod)
+{
+	if(input_focus && input_focus->is_enabled())
+		return input_focus->key_press(key, mod);
+	else
+		return false;
+}
+
+bool Container::key_release(unsigned key, unsigned mod)
+{
+	if(input_focus && input_focus->is_enabled())
+		return input_focus->key_release(key, mod);
+	else
+		return false;
+}
+
+bool Container::character(wchar_t ch)
+{
+	if(input_focus && input_focus->is_enabled())
+		return input_focus->character(ch);
+	else
+		return false;
+}
+
+void Container::focus_in()
+{
+	if(saved_input_focus)
+		set_input_focus(saved_input_focus);
+	Widget::focus_in();
+}
+
+void Container::focus_out()
+{
+	saved_input_focus = input_focus;
+	set_input_focus(nullptr);
+	Widget::focus_out();
+}
+
+bool Container::navigate(Navigation nav)
+{
+	if(input_focus && input_focus->is_enabled())
+		return input_focus->navigate(nav);
 	else
+		return false;
+}
+
+void Container::animate(const Time::TimeDelta &dt)
+{
+	for(const unique_ptr<Child> &c: children)
 	{
-		Widget *wdg = get_child_at(x, y);
-		if(wdg)
+		const Time::TimeDelta &child_iv = c->widget->get_animation_interval();
+		if(!child_iv)
+			continue;
+
+		c->time_since_animate += dt;
+		if(c->time_since_animate>=child_iv)
 		{
-			const Geometry &cgeom = wdg->get_geometry();
-			wdg->pointer_motion(x-cgeom.x, y-cgeom.y);
+			Time::TimeDelta child_dt = c->time_since_animate;
+			c->time_since_animate = min(c->time_since_animate-child_iv, child_iv);
+			c->widget->animate(child_dt);
 		}
 	}
 }
 
-void Container::pointer_leave()
+void Container::on_reparent()
 {
-	Widget::pointer_leave();
-	click_focus = 0;
+	for(const unique_ptr<Child> &c: children)
+	{
+		if(Container *o = dynamic_cast<Container *>(c->widget))
+			o->on_reparent();
+		c->widget->update_style();
+	}
 }
 
-Container::Child *Container::create_child(Widget *wdg)
+void Container::on_input_focus_changed(Widget *wdg)
 {
-	return new Child(*this, wdg);
+	if(wdg)
+		raise(*wdg);
 }
 
 
@@ -151,18 +389,75 @@ Container::Child::Child(Container &c, Widget *w):
 	widget(w)
 {
 	widget->signal_visibility_changed.connect(sigc::mem_fun(this, &Child::visibility_changed));
+	widget->signal_request_focus.connect(sigc::mem_fun(this, &Child::request_focus));
+	widget->signal_grab_pointer.connect(sigc::mem_fun(this, &Child::grab_pointer));
+	widget->signal_ungrab_pointer.connect(sigc::mem_fun(this, &Child::ungrab_pointer));
+	widget->signal_request_animation.connect(sigc::mem_fun(this, &Child::request_animation));
+	widget->signal_rebuild_needed.connect(sigc::mem_fun(this, &Child::rebuild_needed));
+}
+
+Container::Child::Child(Container &c, unique_ptr<Widget> w):
+	Child(c, w.get())
+{
+	own_widget = move(w);
 }
 
 Container::Child::~Child()
 {
-	if(widget==container.click_focus)
-		container.click_focus = 0;
+	visibility_changed(false);
 }
 
 void Container::Child::visibility_changed(bool v)
 {
-	if(!v && widget==container.click_focus)
-		container.click_focus = 0;
+	if(!v)
+	{
+		if(widget==container.click_focus)
+			container.click_focus = nullptr;
+		if(widget==container.pointer_focus)
+			container.set_pointer_focus(nullptr);
+		if(widget==container.input_focus)
+			container.set_input_focus(nullptr);
+	}
+}
+
+void Container::Child::request_focus()
+{
+	if(container.parent && container.visible)
+		container.set_focus();
+	if(container.state&FOCUS)
+		container.set_input_focus(widget);
+}
+
+void Container::Child::grab_pointer()
+{
+	if(!container.pointer_grabbed)
+	{
+		container.set_pointer_focus(widget, true);
+		container.signal_grab_pointer.emit();
+	}
+}
+
+void Container::Child::ungrab_pointer()
+{
+	if(container.pointer_grabbed && container.pointer_focus==widget)
+	{
+		// XXX Should set to the widget under pointer
+		container.set_pointer_focus(nullptr);
+		container.signal_ungrab_pointer.emit();
+	}
+}
+
+void Container::Child::request_animation(const Time::TimeDelta &interval)
+{
+	if(!interval)
+		time_since_animate = Time::zero;
+	container.check_animation_interval();
+}
+
+void Container::Child::rebuild_needed()
+{
+	container.children_rebuild_needed = true;
+	container.signal_rebuild_needed.emit();
 }
 
 } // namespace GLtk