X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fdropdown.cpp;h=ef0fa22f97c8f150009988b3487c716b1e576cf2;hb=HEAD;hp=c2ceefa78957348ee6edd188e71e8ec1faf1fd95;hpb=1aa6cd9b865e366737dcc9d2d36c4f8faed5bc4f;p=libs%2Fgltk.git

diff --git a/source/dropdown.cpp b/source/dropdown.cpp
index c2ceefa..ab00c4c 100644
--- a/source/dropdown.cpp
+++ b/source/dropdown.cpp
@@ -12,131 +12,142 @@ using namespace std;
 namespace Msp {
 namespace GLtk {
 
-Dropdown::Dropdown():
-	dropped(false)
+Dropdown::Dropdown()
 {
-	add(list);
-	list.signal_item_selected.connect(sigc::mem_fun(this, &Dropdown::list_item_selected));
-	list.signal_autosize_changed.connect(sigc::mem_fun(this, &Dropdown::list_autosize_changed));
+	init();
 }
 
-void Dropdown::autosize()
+Dropdown::Dropdown(ListData &d):
+	list(d)
 {
-	if(!style)
-		return;
-
-	Widget::autosize();
-	geom.w = max(geom.w, list.get_geometry().w);
-
-	if(const Part *text_part = style->get_part("text"))
-	{
-		const Sides &margin = text_part->get_margin();
-		const GL::Font &font = style->get_font();
-		float font_size = style->get_font_size();
-		unsigned line_height = static_cast<unsigned>((font.get_ascent()-font.get_descent())*font_size);
-		geom.h = max(geom.h, line_height+margin.top+margin.bottom);
-	}
-
-	rebuild();
+	init();
 }
 
-void Dropdown::append(const string &item)
+void Dropdown::init()
 {
-	list.append(item);
-}
+	input_type = INPUT_NAVIGATION;
 
-void Dropdown::insert(unsigned i, const string &v)
-{
-	list.insert(i, v);
+	add(list);
+	list.set_visible(false);
+	list.set_view_all();
+	list.signal_item_selected.connect(sigc::mem_fun(this, &Dropdown::list_item_selected));
+	list.signal_selection_cleared.connect(sigc::mem_fun(this, &Dropdown::list_selection_cleared));
+	list.signal_autosize_changed.connect(sigc::mem_fun(this, &Dropdown::list_autosize_changed));
 }
 
-void Dropdown::remove(unsigned i)
+void Dropdown::autosize_special(const Part &part, Geometry &ageom) const
 {
-	list.remove(i);
-}
+	if(part.get_name()=="list")
+	{
+		Geometry lgeom;
+		list.autosize(lgeom);
+		ageom.w = max(ageom.w, list.get_geometry().w);
+	}
+	else if(part.get_name()=="text")
+	{
+		const Sides &margin = part.get_margin();
+		const GL::Font &font = style->get_font();
+		float font_size = style->get_font_size();
 
-void Dropdown::clear()
-{
-	list.clear();
-}
+		unsigned max_w = 0;
+		const ListData &data = list.get_data();
+		for(size_t i=0; i<data.size(); ++i)
+		{
+			unsigned w = static_cast<unsigned>(font.get_string_width(data.get_string(i))*font_size);
+			max_w = max(max_w, w);
+		}
+		ageom.w = max(ageom.w, max_w+margin.left+margin.right);
 
-unsigned Dropdown::get_n_items() const
-{
-	return list.get_n_items();
+		unsigned line_height = static_cast<unsigned>((font.get_ascent()-font.get_descent())*font_size);
+		ageom.h = max(ageom.h, line_height+margin.top+margin.bottom);
+	}
 }
 
-void Dropdown::set_selected_index(int i)
+void Dropdown::rebuild_special(const Part &part)
 {
-	list.set_selected_index(i);
+	if(part.get_name()=="text")
+		text.build(part, state, geom, part_cache);
+	else
+		Widget::rebuild_special(part);
 }
 
-const string &Dropdown::get_selected() const
+void Dropdown::render_special(const Part &part, GL::Renderer &renderer) const
 {
-	return list.get_selected();
+	if(part.get_name()=="list" && dropped)
+		list.render(renderer);
 }
 
-int Dropdown::get_selected_index() const
+void Dropdown::button_press(int x, int y, unsigned btn)
 {
-	return list.get_selected_index();
+	if(dropped)
+	{
+		Container::button_press(x, y, btn);
+		if(!click_focus)
+			close_list();
+	}
+	else if(btn==1)
+		open_list();
 }
 
-void Dropdown::rebuild_special(const Part &part, CachedPart &cache)
+bool Dropdown::navigate(Navigation nav)
 {
-	if(part.get_name()=="text")
+	if(dropped)
 	{
-		if(list.get_selected_index()>=0)
-			Text(*style, list.get_selected()).build(part, geom, cache);
+		if(nav==NAV_CANCEL)
+			close_list();
 		else
-			cache.texture = 0;
+			list.navigate(nav);
 	}
+	else if(nav==NAV_ACTIVATE)
+		open_list();
+	else
+		return false;
+
+	return true;
 }
 
-void Dropdown::render_special(const Part &part) const
+void Dropdown::on_size_change()
 {
-	if(part.get_name()=="list" && dropped)
-		list.render();
+	if(dropped)
+		resize_list();
 }
 
-void Dropdown::button_press(int x, int y, unsigned btn)
+void Dropdown::on_style_change()
 {
+	text.set_style(style);
 	if(dropped)
-	{
-		Container::button_press(x, y, btn);
-		if(!click_focus)
-		{
-			dropped = false;
-			clear_state(ACTIVE);
-			signal_ungrab_pointer.emit();
-		}
-	}
-	else if(btn==1)
-	{
-		dropped = true;
-		set_state(ACTIVE);
-		signal_grab_pointer.emit();
-	}
+		resize_list();
 }
 
-void Dropdown::on_geometry_change()
+void Dropdown::open_list()
 {
+	dropped = true;
+	list.set_visible(true);
 	resize_list();
+	set_state(ACTIVE);
+	set_input_focus(&list);
+	signal_grab_pointer.emit();
 }
 
-void Dropdown::on_style_change()
+void Dropdown::close_list()
 {
-	resize_list();
+	dropped = false;
+	list.set_visible(false);
+	clear_state(ACTIVE);
+	signal_ungrab_pointer.emit();
 }
 
 void Dropdown::list_autosize_changed()
 {
-	resize_list();
+	if(dropped)
+		resize_list();
 	signal_autosize_changed.emit();
 }
 
 void Dropdown::resize_list()
 {
-	list.autosize_all();
-	Geometry lgeom = list.get_geometry();
+	Geometry lgeom;
+	list.autosize(lgeom);
 	lgeom.x = 0;
 	lgeom.y = -lgeom.h;
 	lgeom.w = max(geom.w, lgeom.w);
@@ -150,7 +161,10 @@ void Dropdown::resize_list()
 		{
 			const Geometry &rgeom = root->get_geometry();
 			if(lgeom.h*2>rgeom.h)
+			{
 				lgeom.h = rgeom.h/2;
+				lgeom.y = -lgeom.h;
+			}
 			if(root_y+lgeom.y<0)
 				lgeom.y = -root_y;
 			if(root_y+lgeom.y+lgeom.h>rgeom.h)
@@ -163,7 +177,7 @@ void Dropdown::resize_list()
 	list.set_geometry(lgeom);
 }
 
-void Dropdown::list_item_selected(unsigned index, const std::string &item)
+void Dropdown::list_item_selected(size_t index)
 {
 	if(dropped)
 	{
@@ -172,19 +186,27 @@ void Dropdown::list_item_selected(unsigned index, const std::string &item)
 		signal_ungrab_pointer.emit();
 	}
 
-	signal_item_selected.emit(index, item);
+	text.set(list.get_data().get_string(index));
+
+	signal_item_selected.emit(index);
+	mark_rebuild();
+}
+
+void Dropdown::list_selection_cleared()
+{
+	text.set(string());
 }
 
 
 Dropdown::Loader::Loader(Dropdown &d):
-	Widget::Loader(d)
+	DataFile::DerivedObjectLoader<Dropdown, Widget::Loader>(d)
 {
 	add("item", &Loader::item);
 }
 
-void Dropdown::Loader::item(const string &str)
+void Dropdown::Loader::item(const string &v)
 {
-	dynamic_cast<Dropdown &>(obj).append(str);
+	dynamic_cast<BasicListData<string> &>(obj.list.get_data()).append(v);
 }
 
 } // namespace GLtk