X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fdropdown.cpp;h=a4816d48d593bb430e8b1aa764c35aac131b5744;hb=3f4817441626e1abb5556ae53c16746634a57ad9;hp=bc44f27c3ec774a4b982ea9ab72c5dbf5bf40e71;hpb=95210598ff214bbc8d05657aeffc4ce7801f211a;p=libs%2Fgltk.git

diff --git a/source/dropdown.cpp b/source/dropdown.cpp
index bc44f27..a4816d4 100644
--- a/source/dropdown.cpp
+++ b/source/dropdown.cpp
@@ -5,10 +5,12 @@ Copyright © 2007  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"
 
 using namespace std;
 
@@ -17,40 +19,81 @@ namespace GLtk {
 
 Dropdown::Dropdown(const Resources &r):
 	Widget(r),
-	list(new List(res)),
+	list(r),
+	dropped(false),
 	list_active(false)
 {
-	list->signal_item_selected.connect(sigc::mem_fun(this, &Dropdown::list_item_selected));
+	list.signal_item_selected.connect(sigc::mem_fun(this, &Dropdown::list_item_selected));
 
 	update_style();
 }
 
 Dropdown::~Dropdown()
 {
-	delete list;
 }
 
 void Dropdown::append(const string &item)
 {
-	list->append(item);
+	list.append(item);
+	resize_list();
+}
+
+void Dropdown::insert(unsigned i, const string &v)
+{
+	list.insert(i, v);
+	resize_list();
+}
+
+void Dropdown::remove(unsigned i)
+{
+	list.remove(i);
+	resize_list();
+}
+
+void Dropdown::clear()
+{
+	list.clear();
+	resize_list();
+}
+
+unsigned Dropdown::get_n_items() const
+{
+	return list.get_n_items();
+}
+
+void Dropdown::set_selected_index(int i)
+{
+	list.set_selected_index(i);
+}
+
+const string &Dropdown::get_selected() const
+{
+	return list.get_selected();
+}
+
+int Dropdown::get_selected_index() const
+{
+	return list.get_selected_index();
 }
 
 void Dropdown::button_press(int x, int y, unsigned btn)
 {
-	if(list->get_geometry().is_inside(x, y))
+	if(list.get_geometry().is_inside(x, y))
 	{
-		const Geometry &lgeom=list->get_geometry();
-		list->button_press(x-lgeom.x, y-lgeom.y, btn);
+		const Geometry &lgeom=list.get_geometry();
+		list.button_press(x-lgeom.x, y-lgeom.y, btn);
 		list_active=true;
 	}
-	else if(state==ACTIVE)
+	else if(dropped)
 	{
-		state=HOVER;
+		dropped=false;
+		state&=~ACTIVE;
 		parent->ungrab_pointer(*this);
 	}
 	else if(btn==1)
 	{
-		state=ACTIVE;
+		dropped=true;
+		state|=ACTIVE;
 
 		if(parent)
 		{
@@ -64,8 +107,8 @@ void Dropdown::button_release(int x, int y, unsigned btn)
 {
 	if(list_active)
 	{
-		const Geometry &lgeom=list->get_geometry();
-		list->button_release(x-lgeom.x, y-lgeom.y, btn);
+		const Geometry &lgeom=list.get_geometry();
+		list.button_release(x-lgeom.x, y-lgeom.y, btn);
 		list_active=false;
 	}
 }
@@ -74,46 +117,67 @@ void Dropdown::pointer_motion(int x, int y)
 {
 	if(list_active)
 	{
-		const Geometry &lgeom=list->get_geometry();
-		list->pointer_motion(x-lgeom.x, y-lgeom.y);
+		const Geometry &lgeom=list.get_geometry();
+		list.pointer_motion(x-lgeom.x, y-lgeom.y);
 	}
 }
 
-void Dropdown::pointer_enter()
+void Dropdown::render_special(const Part &part) const
 {
-	if(state==NORMAL)
-		state=HOVER;
+	if(part.get_name()=="text")
+	{
+		if(list.get_selected_index()>=0)
+			render_text(part, list.get_selected());
+	}
+	else if(part.get_name()=="list" && dropped)
+		list.render();
 }
 
-void Dropdown::pointer_leave()
+void Dropdown::on_geometry_change()
 {
-	if(state==HOVER)
-		state=NORMAL;
+	resize_list();
 }
 
-void Dropdown::render_special(const Part &part) const
+void Dropdown::resize_list()
 {
-	if(part.get_name()=="text")
-		render_text(part, text);
-	else if(part.get_name()=="list" && state==ACTIVE)
-		list->render();
+	// 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), 20U)*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));
 }
 
-void Dropdown::on_geometry_change()
+void Dropdown::list_item_selected(unsigned index, const std::string &item)
 {
-	list->set_geometry(Geometry(0, -100, geom.w, 100));
+	if(dropped)
+	{
+		list_active=false;
+		dropped=false;
+		state&=~ACTIVE;
+		if(parent)
+			parent->ungrab_pointer(*this);
+	}
+
+	signal_item_selected.emit(index, item);
 }
 
-void Dropdown::list_item_selected(unsigned index, const std::string &item)
-{
-	text=item;
 
-	list_active=false;
-	state=NORMAL;
-	if(parent)
-		parent->ungrab_pointer(*this);
+Dropdown::Loader::Loader(Dropdown &d):
+	Widget::Loader(d)
+{
+	add("item", &Loader::item);
+}
 
-	signal_item_selected.emit(index, item);
+void Dropdown::Loader::item(const string &str)
+{
+	static_cast<Dropdown &>(wdg).append(str);
 }
 
 } // namespace GLtk