X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fdropdown.cpp;h=e0710a864c085cc52d67b7b4fd8d9cb2c1100078;hb=c72566cd7f8252eb386c753ceeafa8a324d1120b;hp=bc44f27c3ec774a4b982ea9ab72c5dbf5bf40e71;hpb=95210598ff214bbc8d05657aeffc4ce7801f211a;p=libs%2Fgltk.git

diff --git a/source/dropdown.cpp b/source/dropdown.cpp
index bc44f27..e0710a8 100644
--- a/source/dropdown.cpp
+++ b/source/dropdown.cpp
@@ -1,14 +1,17 @@
 /* $Id$
 
 This file is part of libmspgltk
-Copyright © 2007  Mikko Rasa, Mikkosoft Productions
+Copyright © 2007-2009  Mikko Rasa, Mikkosoft Productions
 Distributed under the LGPL
 */
 
+#include <msp/gl/font.h>
 #include "dropdown.h"
 #include "list.h"
 #include "panel.h"
 #include "part.h"
+#include "style.h"
+#include "text.h"
 
 using namespace std;
 
@@ -17,104 +20,135 @@ namespace GLtk {
 
 Dropdown::Dropdown(const Resources &r):
 	Widget(r),
-	list(new List(res)),
-	list_active(false)
+	Container(r),
+	list(r),
+	dropped(false)
 {
-	list->signal_item_selected.connect(sigc::mem_fun(this, &Dropdown::list_item_selected));
+	add(list);
+	list.signal_item_selected.connect(sigc::mem_fun(this, &Dropdown::list_item_selected));
 
 	update_style();
 }
 
-Dropdown::~Dropdown()
+void Dropdown::append(const string &item)
 {
-	delete list;
+	list.append(item);
+	resize_list();
 }
 
-void Dropdown::append(const string &item)
+void Dropdown::insert(unsigned i, const string &v)
 {
-	list->append(item);
+	list.insert(i, v);
+	resize_list();
 }
 
-void Dropdown::button_press(int x, int y, unsigned btn)
+void Dropdown::remove(unsigned i)
 {
-	if(list->get_geometry().is_inside(x, y))
-	{
-		const Geometry &lgeom=list->get_geometry();
-		list->button_press(x-lgeom.x, y-lgeom.y, btn);
-		list_active=true;
-	}
-	else if(state==ACTIVE)
-	{
-		state=HOVER;
-		parent->ungrab_pointer(*this);
-	}
-	else if(btn==1)
-	{
-		state=ACTIVE;
+	list.remove(i);
+	resize_list();
+}
 
-		if(parent)
-		{
-			parent->raise(*this);
-			parent->grab_pointer(*this);
-		}
-	}
+void Dropdown::clear()
+{
+	list.clear();
+	resize_list();
 }
 
-void Dropdown::button_release(int x, int y, unsigned btn)
+unsigned Dropdown::get_n_items() const
 {
-	if(list_active)
-	{
-		const Geometry &lgeom=list->get_geometry();
-		list->button_release(x-lgeom.x, y-lgeom.y, btn);
-		list_active=false;
-	}
+	return list.get_n_items();
 }
 
-void Dropdown::pointer_motion(int x, int y)
+void Dropdown::set_selected_index(int i)
 {
-	if(list_active)
-	{
-		const Geometry &lgeom=list->get_geometry();
-		list->pointer_motion(x-lgeom.x, y-lgeom.y);
-	}
+	list.set_selected_index(i);
 }
 
-void Dropdown::pointer_enter()
+const string &Dropdown::get_selected() const
 {
-	if(state==NORMAL)
-		state=HOVER;
+	return list.get_selected();
 }
 
-void Dropdown::pointer_leave()
+int Dropdown::get_selected_index() const
 {
-	if(state==HOVER)
-		state=NORMAL;
+	return list.get_selected_index();
+}
+
+void Dropdown::button_press(int x, int y, unsigned btn)
+{
+	if(dropped)
+	{
+		Container::button_press(x, y, btn);
+		if(!click_focus)
+		{
+			dropped=false;
+			state&=~ACTIVE;
+			signal_ungrab_pointer.emit();
+		}
+	}
+	else if(btn==1)
+	{
+		dropped=true;
+		state|=ACTIVE;
+		signal_grab_pointer.emit();
+	}
 }
 
 void Dropdown::render_special(const Part &part) const
 {
 	if(part.get_name()=="text")
-		render_text(part, text);
-	else if(part.get_name()=="list" && state==ACTIVE)
-		list->render();
+	{
+		if(list.get_selected_index()>=0)
+			Text(style, list.get_selected()).render(part, geom);
+	}
+	else if(part.get_name()=="list" && dropped)
+		list.render();
 }
 
 void Dropdown::on_geometry_change()
 {
-	list->set_geometry(Geometry(0, -100, geom.w, 100));
+	resize_list();
 }
 
-void Dropdown::list_item_selected(unsigned index, const std::string &item)
+void Dropdown::resize_list()
 {
-	text=item;
+	// XXX This is a hack.
+	unsigned n_items=list.get_n_items();
+	const Style &stl=list.get_style();
+	const GL::Font &font=*stl.get_font();
+	unsigned h=min(max(n_items, 1U), 10U)*static_cast<unsigned>((font.get_ascent()-font.get_descent())*font.get_default_size());
+	for(std::list<Part>::const_iterator i=stl.get_parts().begin(); i!=stl.get_parts().end(); ++i)
+		if(i->get_name()=="items")
+		{
+			const Sides &margin=i->get_margin();
+			h+=margin.top+margin.bottom;
+		}
+	list.set_geometry(Geometry(0, -h, geom.w, h));
+}
 
-	list_active=false;
-	state=NORMAL;
-	if(parent)
-		parent->ungrab_pointer(*this);
+void Dropdown::list_item_selected(unsigned index, const std::string &item)
+{
+	if(dropped)
+	{
+		dropped=false;
+		state&=~ACTIVE;
+		signal_ungrab_pointer.emit();
+	}
 
 	signal_item_selected.emit(index, item);
 }
 
+
+Dropdown::Loader::Loader(Dropdown &d):
+	Widget::Loader(d)
+{
+	add("item", &Loader::item);
+}
+
+void Dropdown::Loader::item(const string &str)
+{
+	dynamic_cast<Dropdown &>(wdg).append(str);
+}
+
 } // namespace GLtk
 } // namespace Msp