X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fpanel.cpp;h=ba66c682e85decb9608c084caeaaa6b5763c0318;hb=HEAD;hp=bfd0aa8eca7f8f33e5d0ab0ab9688ac1431de911;hpb=ed9873ba7ee862ad76937f579fe371c1a27d5715;p=libs%2Fgltk.git

diff --git a/source/panel.cpp b/source/panel.cpp
index bfd0aa8..ba66c68 100644
--- a/source/panel.cpp
+++ b/source/panel.cpp
@@ -1,205 +1,312 @@
-/* $Id$
-
-This file is part of libmspgltk
-Copyright © 2007  Mikko Rasa, Mikkosoft Productions
-Distributed under the LGPL
-*/
-
-#include <msp/core/refptr.h>
+#include <msp/core/algorithm.h>
+#include <msp/core/maputils.h>
 #include "button.h"
+#include "column.h"
+#include "draghandle.h"
+#include "dropdown.h"
 #include "entry.h"
+#include "grid.h"
+#include "image.h"
+#include "indicator.h"
 #include "label.h"
+#include "list.h"
 #include "panel.h"
 #include "part.h"
+#include "progressbar.h"
+#include "row.h"
+#include "slider.h"
+#include "stack.h"
+#include "toggle.h"
 
 using namespace std;
 
 namespace Msp {
 namespace GLtk {
 
-Panel::Panel(const Resources &r):
-	Widget(r),
-	pointer_focus(0),
-	pointer_grab(0),
-	input_focus(0)
+TypeRegistry<Panel::Loader::AddChildType, Panel::Loader &> Panel::widget_registry;
+bool Panel::widget_registry_init_done = false;
+
+Panel::Panel()
 {
-	update_style();
+	input_type = INPUT_NAVIGATION;
 }
 
-Panel::~Panel()
+Layout &Panel::get_or_create_layout()
 {
-	while(!children.empty())
-		delete children.front();
+	if(!layout)
+	{
+		layout = make_unique<Layout>();
+		layout->set_container(*this);
+	}
+
+	return *layout;
 }
 
-void Panel::add(Widget &wdg)
+void Panel::autosize_special(const Part &part, Geometry &ageom) const
 {
-	set_parent(wdg, this);
-	children.push_back(&wdg);
+	if(part.get_name()=="children" && layout)
+		layout->autosize(ageom);
 }
 
-void Panel::remove(Widget &wdg)
+void Panel::render_special(const Part &part, GL::Renderer &renderer) const
 {
-	ChildSeq::iterator i=find(children.begin(), children.end(), &wdg);
-	if(i!=children.end())
+	if(part.get_name()=="children")
 	{
-		set_parent(wdg, 0);
-		children.erase(i);
+		for(const unique_ptr<Child> &c: children)
+			if(c->widget->is_visible())
+				c->widget->render(renderer);
 	}
 }
 
-void Panel::button_press(int x, int y, unsigned btn)
+bool Panel::navigate(Navigation nav)
 {
-	if(pointer_grab>0)
-		pointer_focus->button_press(x-geom.x, y-geom.y, btn);
-	else if(geom.is_inside(x, y))
+	if(Container::navigate(nav))
+		return true;
+
+	if(nav==NAV_UP || nav==NAV_DOWN || nav==NAV_LEFT || nav==NAV_RIGHT)
 	{
-		if(Widget *wdg=get_child_at(x, y))
-		{
-			set_pointer_focus(wdg, btn);
-			set_input_focus(wdg);
+		int nav_x = (nav==NAV_RIGHT ? 1 : nav==NAV_LEFT ? -1 : 0);
+		int nav_y = (nav==NAV_UP ? 1 : nav==NAV_DOWN ? -1 : 0);
 
-			wdg->button_press(x-geom.x, y-geom.y, btn);
+		int origin_x, origin_y, origin_dim;
+		if(input_focus)
+		{
+			const Geometry &fgeom = input_focus->get_geometry();
+			origin_x = fgeom.x+(nav_x*0.5+0.5)*fgeom.w;
+			origin_y = fgeom.y+(nav_y*0.5+0.5)*fgeom.h;
+			origin_dim = abs(nav_x)*fgeom.h+abs(nav_y)*fgeom.w;
+		}
+		else
+		{
+			origin_x = geom.w*(0.5-nav_x*0.5);
+			origin_y = geom.h*(0.5-nav_y*0.5);
+			origin_dim = abs(nav_x)*geom.h+abs(nav_y)*geom.w;
 		}
-	}
-}
 
-void Panel::button_release(int x, int y, unsigned btn)
-{
-	if(pointer_grab>0)
-	{
-		pointer_focus->button_release(x-geom.x, y-geom.y, btn);
+		if(pointer_grabbed && pointer_focus==input_focus)
+			return false;
 
-		if(btn==pointer_grab)
-			set_pointer_focus(get_child_at(x, y), 0);
+		Widget *sibling = find_next_child(origin_x, origin_y, origin_dim, nav_x, nav_y);
+		if(!sibling && input_focus)
+		{
+			const Geometry &fgeom = input_focus->get_geometry();
+			origin_x -= fgeom.w*(nav_x*0.5);
+			origin_y -= fgeom.h*(nav_y*0.5);
+			sibling = find_next_child(origin_x, origin_y, origin_dim, nav_x, nav_y);
+		}
+
+		if(sibling)
+		{
+			set_input_focus(sibling);
+			if(Panel *panel = dynamic_cast<Panel *>(sibling))
+				panel->navigate(nav);
+			return true;
+		}
 	}
-	else if(geom.is_inside(x, y))
+	else if(nav==NAV_NEXT || nav==NAV_PREVIOUS)
 	{
-		if(Widget *wdg=get_child_at(x, y))
-			wdg->button_release(x-geom.x, y-geom.y, btn);
+		auto i = find(nav_order, input_focus);
+
+		if(nav==NAV_NEXT)
+		{
+			if(i!=nav_order.end())
+				++i;
+			if(i==nav_order.end())
+				i = nav_order.begin();
+		}
+		else
+		{
+			if(i==nav_order.begin())
+				i = nav_order.end();
+			--i;
+		}
+
+		set_input_focus(*i);
+
+		return true;
 	}
+
+	return false;
 }
 
-void Panel::pointer_motion(int x, int y)
+Widget *Panel::find_next_child(int origin_x, int origin_y, int origin_dim, int nav_x, int nav_y) const
 {
-	if(pointer_grab>0)
-		pointer_focus->pointer_motion(x-geom.x, y-geom.y);
-	else if(geom.is_inside(x, y))
+	Widget *sibling = nullptr;
+	int best_score = 0;
+	for(const unique_ptr<Child> &c: children)
 	{
-		Widget *wdg=get_child_at(x, y);
-		set_pointer_focus(wdg, 0);
-		if(wdg)
-			wdg->pointer_motion(x-geom.x, y-geom.y);
+		if(c->widget==input_focus || !c->widget->is_focusable())
+			continue;
+
+		const Geometry &cgeom = c->widget->get_geometry();
+		int dx = compute_delta(cgeom.x, cgeom.w, origin_x, origin_dim, nav_x);
+		int dy = compute_delta(cgeom.y, cgeom.h, origin_y, origin_dim, nav_y);
+
+		int score = -1;
+		if(nav_y && nav_y*dy>=0)
+			score = nav_y*dy+abs(dx)*4;
+		else if(nav_x && nav_x*dx>=0)
+			score = nav_x*dx+abs(dy)*4;
+
+		if(score>=0 && (!sibling || score<best_score))
+		{
+			sibling = c->widget;
+			best_score = score;
+		}
 	}
-}
 
-void Panel::pointer_leave()
-{
-	set_pointer_focus(0, 0);
+	return sibling;
 }
 
-void Panel::key_press(unsigned key, unsigned mod, wchar_t ch)
+int Panel::compute_delta(int pos, int dim, int origin_pos, int origin_dim, int nav)
 {
-	if(input_focus)
-		input_focus->key_press(key, mod, ch);
+	if(nav<0)
+		return pos+dim-origin_pos;
+	else if(nav>0)
+		return pos-origin_pos;
+	else if(pos+dim<origin_pos-origin_dim/2)
+		return pos+dim+origin_dim/2-origin_pos;
+	else if(pos>origin_pos+origin_dim/2)
+		return pos-origin_pos-origin_dim/2;
+	else
+		return 0;
 }
 
-void Panel::key_release(unsigned key, unsigned mod)
+void Panel::on_size_change()
 {
-	if(input_focus)
-		input_focus->key_release(key, mod);
+	if(layout)
+		layout->update();
 }
 
-void Panel::focus_out()
+void Panel::on_child_added(Widget &wdg)
 {
-	set_input_focus(0);
-}
+	if(wdg.get_input_type()!=INPUT_NONE)
+		nav_order.push_back(&wdg);
 
-void Panel::child_hidden(Widget &wdg)
-{
-	if(&wdg==pointer_focus)
-		set_pointer_focus(0, 0);
+	if(layout)
+	{
+		layout->add_widget(wdg);
+		signal_autosize_changed.emit();
+	}
 }
 
-void Panel::render_special(const Part &part) const
+void Panel::on_child_removed(Widget &wdg)
 {
-	if(part.get_name()=="children")
+	auto i = std::remove(nav_order.begin(), nav_order.end(), &wdg);
+	if(i!=nav_order.end())
+		nav_order.erase(i, nav_order.end());
+
+	if(layout)
 	{
-		for(ChildSeq::const_iterator i=children.begin(); i!=children.end(); ++i)
-			if((*i)->is_visible())
-				(*i)->render();
+		layout->remove_widget(wdg);
+		signal_autosize_changed.emit();
 	}
 }
 
-void Panel::set_pointer_focus(Widget *wdg, int grab)
-{
-	if(grab>0 && !wdg)
-		throw InvalidParameterValue("Can't grab on null widget");
 
-	if(wdg!=pointer_focus)
+Panel::Loader::Loader(Panel &p, map<string, Widget *> &m):
+	DataFile::DerivedObjectLoader<Panel, Widget::Loader>(p),
+	wdg_map(m),
+	last_widget(nullptr)
+{
+	if(!widget_registry_init_done)
 	{
-		if(pointer_focus)
-			pointer_focus->pointer_leave();
+		widget_registry_init_done = true;
+		register_child_type<Button>("button");
+		register_child_type<DragHandle>("draghandle");
+		register_child_type<Dropdown>("dropdown");
+		register_child_type<Entry>("entry");
+		register_child_type<HSlider>("hslider");
+		register_child_type<Image>("image");
+		register_child_type<Indicator>("indicator");
+		register_child_type<Label>("label");
+		register_child_type<List>("list");
+		register_child_type<Panel>("panel");
+		register_child_type<ProgressBar>("progressbar");
+		register_child_type<Toggle>("toggle");
+		register_child_type<VSlider>("vslider");
+	}
 
-		pointer_focus=wdg;
+	add("column",    &Loader::arrangement<Column>);
+	add("constraint",&Loader::constraint);
+	add("expand",    &Loader::expand);
+	add("ghost",     &Loader::ghost);
+	add("gravity",   &Loader::gravity);
+	add("grid",      &Loader::grid);
+	add("layout",    &Loader::layout);
+	add("row",       &Loader::arrangement<Row>);
+	add("stack",     &Loader::arrangement<Stack>);
+	widget_registry.invoke_all(*this);
+}
 
-		if(pointer_focus)
-			pointer_focus->pointer_enter();
-	}
+Widget &Panel::Loader::get_last_widget()
+{
+	if(!last_widget)
+		throw logic_error("no widget loaded");
 
-	pointer_grab=grab;
+	return *last_widget;
 }
 
-void Panel::set_input_focus(Widget *wdg)
+template<typename T>
+void Panel::Loader::arrangement()
 {
-	if(wdg!=input_focus)
-	{
-		if(input_focus)
-			input_focus->focus_out();
+	T arr(obj.get_or_create_layout());
+	ArrangedLoader<T> ldr(*this, arr);
+	load_sub_with(ldr);
+}
 
-		input_focus=wdg;
+void Panel::Loader::constraint(Layout::ConstraintType type, const string &n)
+{
+	Widget &src = get_last_widget();
+	Widget &tgt = *get_item(wdg_map, n);
+	obj.get_or_create_layout().add_constraint(src, type, tgt);
+}
 
-		if(input_focus)
-			input_focus->focus_in();
-	}
+void Panel::Loader::expand(bool h, bool v)
+{
+	obj.get_or_create_layout().set_expand(get_last_widget(), h, v);
 }
 
-Widget *Panel::get_child_at(int x, int y)
+void Panel::Loader::ghost(bool g)
 {
-	for(ChildSeq::reverse_iterator i=children.rbegin(); i!=children.rend(); ++i)
-		if((*i)->is_visible() && (*i)->get_geometry().is_inside(x-geom.x, y-geom.y))
-			return *i;
+	obj.get_or_create_layout().set_ghost(get_last_widget(), g);
+}
 
-	return 0;
+void Panel::Loader::gravity(int h, int v)
+{
+	obj.get_or_create_layout().set_gravity(get_last_widget(), h, v);
 }
 
+void Panel::Loader::grid(size_t cols)
+{
+	Grid grd(obj.get_or_create_layout(), cols);
+	ArrangedLoader<Grid> ldr(*this, grd);
+	load_sub_with(ldr);
+}
 
-Panel::Loader::Loader(Panel &p, map<string, Widget *> &m):
-	Widget::Loader(p),
-	pnl(p),
-	wdg_map(m)
+void Panel::Loader::layout()
 {
-	add("button", &Loader::child<Button>);
-	add("entry",  &Loader::child<Entry>);
-	add("label",  &Loader::child<Label>);
-	add("panel",  &Loader::panel);
+	Layout::Loader ldr(obj.get_or_create_layout(), wdg_map);
+	load_sub_with(ldr);
 }
 
-template<typename T>
-void Panel::Loader::child(const string &n)
+template<>
+void Panel::Loader::unnamed_child<Panel>()
 {
-	RefPtr<T> chl=new T(pnl.res);
-	load_sub(*chl);
-	pnl.add(*chl.get());
-	wdg_map[n]=chl.release();
+	unique_ptr<Panel> pnl = make_unique<Panel>();
+	load_sub(*pnl, wdg_map);
+	Widget *wdg = pnl.get();
+	obj.add(move(pnl));
+	last_widget = wdg;
 }
 
-void Panel::Loader::panel(const string &n)
+
+template<typename T>
+Panel::ArrangedLoader<T>::ArrangedLoader(Loader &ldr, T &arr):
+	arr_loader(arr)
 {
-	RefPtr<Panel> p=new Panel(pnl.res);
-	load_sub(*p, wdg_map);
-	pnl.add(*p.get());
-	wdg_map[n]=p.release();
+	add_auxiliary_loader(ldr);
+	add_auxiliary_loader(arr_loader);
 }
 
 } // namespace GLtk