-/* $Id$
-
-This file is part of libmspgltk
-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 "root.h"
#include "style.h"
+#include "text.h"
using namespace std;
namespace Msp {
namespace GLtk {
-Dropdown::Dropdown(const Resources &r):
- Widget(r),
- Container(r),
- list(r),
- dropped(false)
+Dropdown::Dropdown()
{
- add(list);
- list.signal_item_selected.connect(sigc::mem_fun(this, &Dropdown::list_item_selected));
-
- update_style();
+ init();
}
-void Dropdown::append(const string &item)
+Dropdown::Dropdown(ListData &d):
+ list(d)
{
- list.append(item);
- resize_list();
+ init();
}
-void Dropdown::insert(unsigned i, const string &v)
+void Dropdown::init()
{
- list.insert(i, v);
- resize_list();
-}
+ dropped = false;
-void Dropdown::remove(unsigned i)
-{
- list.remove(i);
- resize_list();
+ add(list);
+ list.set_view_all();
+ 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));
}
-void Dropdown::clear()
+void Dropdown::autosize()
{
- list.clear();
- resize_list();
-}
+ if(!style)
+ return;
-unsigned Dropdown::get_n_items() const
-{
- return list.get_n_items();
+ Widget::autosize();
+ list.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 max_w = 0;
+ const ListData &data = list.get_data();
+ for(unsigned 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);
+ }
+ geom.w = max(geom.w, max_w+margin.left+margin.right);
+
+ 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();
}
-void Dropdown::set_selected_index(int i)
+void Dropdown::set_selected_index(int index)
{
- list.set_selected_index(i);
+ list.set_selected_index(index);
+ if(index<0)
+ text.set(string());
}
-const string &Dropdown::get_selected() const
+void Dropdown::rebuild_special(const Part &part)
{
- return list.get_selected();
+ if(part.get_name()=="text")
+ text.build(part, geom, part_cache);
+ else
+ Widget::rebuild_special(part);
}
-int Dropdown::get_selected_index() const
+void Dropdown::render_special(const Part &part, GL::Renderer &renderer) const
{
- return list.get_selected_index();
+ if(part.get_name()=="list" && dropped)
+ list.render(renderer);
}
void Dropdown::button_press(int x, int y, unsigned btn)
Container::button_press(x, y, btn);
if(!click_focus)
{
- dropped=false;
- state&=~ACTIVE;
+ dropped = false;
+ clear_state(ACTIVE);
signal_ungrab_pointer.emit();
}
}
else if(btn==1)
{
- dropped=true;
- state|=ACTIVE;
+ dropped = true;
+ set_state(ACTIVE);
signal_grab_pointer.emit();
}
}
-void Dropdown::render_special(const Part &part) const
+void Dropdown::on_geometry_change()
{
- 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();
+ resize_list();
}
-void Dropdown::on_geometry_change()
+void Dropdown::on_style_change()
{
+ text.set_style(style);
resize_list();
}
+void Dropdown::list_autosize_changed()
+{
+ resize_list();
+ signal_autosize_changed.emit();
+}
+
void Dropdown::resize_list()
{
- // 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")
+ list.autosize();
+ Geometry lgeom = list.get_geometry();
+ lgeom.x = 0;
+ lgeom.y = -lgeom.h;
+ lgeom.w = max(geom.w, lgeom.w);
+ int root_x = geom.x;
+ int root_y = geom.y;
+ for(Widget *p=parent; p; p=p->get_parent())
+ {
+ root_x += p->get_geometry().x;
+ root_y += p->get_geometry().y;
+ if(Root *root = dynamic_cast<Root *>(p))
{
- const Sides &margin=i->get_margin();
- h+=margin.top+margin.bottom;
+ const Geometry &rgeom = root->get_geometry();
+ if(lgeom.h*2>rgeom.h)
+ lgeom.h = rgeom.h/2;
+ if(root_y+lgeom.y<0)
+ lgeom.y = -root_y;
+ if(root_y+lgeom.y+lgeom.h>rgeom.h)
+ lgeom.y = rgeom.h-lgeom.h-root_y;
+ if(root_x+lgeom.x+lgeom.w>rgeom.w)
+ lgeom.x = rgeom.w-lgeom.w-root_x;
+ break;
}
- list.set_geometry(Geometry(0, -h, geom.w, h));
+ }
+ list.set_geometry(lgeom);
}
-void Dropdown::list_item_selected(unsigned index, const std::string &item)
+void Dropdown::list_item_selected(unsigned index)
{
if(dropped)
{
- dropped=false;
- state&=~ACTIVE;
+ dropped = false;
+ clear_state(ACTIVE);
signal_ungrab_pointer.emit();
}
- signal_item_selected.emit(index, item);
+ text.set(list.get_data().get_string(index));
+
+ signal_item_selected.emit(index);
+ rebuild();
}
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 &>(wdg).append(str);
+ dynamic_cast<BasicListData<string> &>(obj.list.get_data()).append(v);
}
} // namespace GLtk
projects / libs / gltk.git / blobdiff