X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fpanel.cpp;h=ba66c682e85decb9608c084caeaaa6b5763c0318;hb=HEAD;hp=b029057de9f7799dc64d36d86ea919dc2925eb7c;hpb=c1f038acb91eb3bfaa34dfd4729d19ed3f871a42;p=libs%2Fgltk.git

diff --git a/source/panel.cpp b/source/panel.cpp
index b029057..ba66c68 100644
--- a/source/panel.cpp
+++ b/source/panel.cpp
@@ -1,47 +1,312 @@
+#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)
+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()
 {
-	for(ChildSeq::iterator i=children.begin(); i!=children.end(); ++i)
-		delete *i;
+	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
 {
-	children.push_back(&wdg);
+	if(part.get_name()=="children" && layout)
+		layout->autosize(ageom);
 }
 
-void Panel::render_part(const Part &part) const
+void Panel::render_special(const Part &part, GL::Renderer &renderer) const
 {
 	if(part.get_name()=="children")
 	{
-		for(ChildSeq::const_iterator i=children.begin(); i!=children.end(); ++i)
-			(*i)->render();
+		for(const unique_ptr<Child> &c: children)
+			if(c->widget->is_visible())
+				c->widget->render(renderer);
 	}
+}
+
+bool Panel::navigate(Navigation nav)
+{
+	if(Container::navigate(nav))
+		return true;
+
+	if(nav==NAV_UP || nav==NAV_DOWN || nav==NAV_LEFT || nav==NAV_RIGHT)
+	{
+		int nav_x = (nav==NAV_RIGHT ? 1 : nav==NAV_LEFT ? -1 : 0);
+		int nav_y = (nav==NAV_UP ? 1 : nav==NAV_DOWN ? -1 : 0);
+
+		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;
+		}
+
+		if(pointer_grabbed && pointer_focus==input_focus)
+			return false;
+
+		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(nav==NAV_NEXT || nav==NAV_PREVIOUS)
+	{
+		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;
+}
+
+Widget *Panel::find_next_child(int origin_x, int origin_y, int origin_dim, int nav_x, int nav_y) const
+{
+	Widget *sibling = nullptr;
+	int best_score = 0;
+	for(const unique_ptr<Child> &c: children)
+	{
+		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;
+		}
+	}
+
+	return sibling;
+}
+
+int Panel::compute_delta(int pos, int dim, int origin_pos, int origin_dim, int nav)
+{
+	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
-		Widget::render_part(part);
+		return 0;
+}
+
+void Panel::on_size_change()
+{
+	if(layout)
+		layout->update();
 }
 
-void Panel::on_button_press(int x, int y, unsigned btn)
+void Panel::on_child_added(Widget &wdg)
 {
-	for(ChildSeq::iterator i=children.begin(); i!=children.end(); ++i)
-		(*i)->button_press(x-geom.x, y-geom.y, btn);
+	if(wdg.get_input_type()!=INPUT_NONE)
+		nav_order.push_back(&wdg);
+
+	if(layout)
+	{
+		layout->add_widget(wdg);
+		signal_autosize_changed.emit();
+	}
 }
 
-void Panel::on_button_release(int x, int y, unsigned btn)
+void Panel::on_child_removed(Widget &wdg)
+{
+	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)
+	{
+		layout->remove_widget(wdg);
+		signal_autosize_changed.emit();
+	}
+}
+
+
+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)
+	{
+		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");
+	}
+
+	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);
+}
+
+Widget &Panel::Loader::get_last_widget()
+{
+	if(!last_widget)
+		throw logic_error("no widget loaded");
+
+	return *last_widget;
+}
+
+template<typename T>
+void Panel::Loader::arrangement()
+{
+	T arr(obj.get_or_create_layout());
+	ArrangedLoader<T> ldr(*this, arr);
+	load_sub_with(ldr);
+}
+
+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);
+}
+
+void Panel::Loader::expand(bool h, bool v)
+{
+	obj.get_or_create_layout().set_expand(get_last_widget(), h, v);
+}
+
+void Panel::Loader::ghost(bool g)
+{
+	obj.get_or_create_layout().set_ghost(get_last_widget(), g);
+}
+
+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);
+}
+
+void Panel::Loader::layout()
+{
+	Layout::Loader ldr(obj.get_or_create_layout(), wdg_map);
+	load_sub_with(ldr);
+}
+
+template<>
+void Panel::Loader::unnamed_child<Panel>()
+{
+	unique_ptr<Panel> pnl = make_unique<Panel>();
+	load_sub(*pnl, wdg_map);
+	Widget *wdg = pnl.get();
+	obj.add(move(pnl));
+	last_widget = wdg;
+}
+
+
+template<typename T>
+Panel::ArrangedLoader<T>::ArrangedLoader(Loader &ldr, T &arr):
+	arr_loader(arr)
 {
-	for(ChildSeq::iterator i=children.begin(); i!=children.end(); ++i)
-		(*i)->button_release(x-geom.x, y-geom.y, btn);
+	add_auxiliary_loader(ldr);
+	add_auxiliary_loader(arr_loader);
 }
 
 } // namespace GLtk