#include <nana/gui/wvl.hpp>
#include <nana/gui/place.hpp>
#include <nana/gui/widgets/button.hpp>
#include <nana/gui/widgets/textbox.hpp>

int main()
{
    using namespace nana::gui;

    //Define widgets
    form fm;
    textbox usr(fm), pswd(fm);
    button login(fm), cancel(fm);

    usr.tip_string(STR("User:")).multi_lines(false);
    pswd.tip_string(STR("Password:")).multi_lines(false).mask('*');

    login.caption(STR("Login"));
    cancel.caption(STR("Cancel"));

    usr.make_event<nana::gui::events::key_char>([&usr,&pswd](const nana::gui::eventinfo& info)
                                                            {
                                                                if(info.keyboard.key == '\t')
                                                                {
                                                                    nana::gui::eventinfo event;
                                                                    event.identifier = nana::gui::events::key_char::identifier;
                                                                    event.keyboard.key = nana::gui::keyboard::backspace;

                                                                    nana::gui::API::raise_event<nana::gui::events::key_char>(usr,event);
                                                                    nana::gui::API::focus_window(pswd);
                                                                }
                                                            });

    pswd.make_event<nana::gui::events::key_char>([&usr,&pswd](const nana::gui::eventinfo& info)
                                                             {
                                                                 if(info.keyboard.key == '\t')
                                                                 {
                                                                     nana::gui::eventinfo event;
                                                                     event.identifier = nana::gui::events::key_char::identifier;
                                                                     event.keyboard.key = nana::gui::keyboard::backspace;

                                                                     nana::gui::API::raise_event<nana::gui::events::key_char>(pswd,event);
                                                                     nana::gui::API::focus_window(usr);
                                                                 }
                                                             });

    //Define a place for the form.
    place plc(fm);

    //Divide the form into fields
    plc.div("<><weight=80% vertical<><weight=70% vertical<vertical textboxs><weight=25 buttons>><>><>");

    //Insert widgets

    //The field textboxs is vertical, it automatically adjusts the widgets' top
    //and height. The usr and pswd are single-line textboxs, and we should specify
    //them with a fixed height.
    plc.field("textboxs")<<plc.fixed(usr, 25)<<10<<plc.fixed(pswd, 25);

    plc.field("buttons")<<login<<10<<cancel;

    //Finially, the widgets should be collocated.
    //Do not miss this line, otherwise the widgets are not collocated
    //until the form is resized.
    plc.collocate();

    fm.show();
    exec();

}