popup.cc

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/*
    Copyright (C) 1998-99 Paul Barton-Davis
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

    $Id$
*/

#include <iostream>

#include <gtkmm2ext/popup.h>
#include <gtkmm2ext/utils.h>
#include <gtkmm2ext/gtk_ui.h>

using namespace std;
using namespace Gtk;
using namespace Gtkmm2ext;

PopUp::PopUp (Gtk::WindowPosition pos, unsigned int showfor_msecs, bool doh)
        : Window (WINDOW_POPUP)
{
        add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
        signal_button_press_event().connect(mem_fun(*this,&PopUp::button_click));
        set_border_width (12);
        add (label);
        set_position (pos);

        delete_on_hide = doh;
        popdown_time = showfor_msecs;
        timeout = -1;
}


PopUp::~PopUp ()
{
}

void
PopUp::on_realize ()
{
        Gtk::Window::on_realize();
        get_window()->set_decorations (Gdk::WMDecoration (Gdk::DECOR_BORDER|Gdk::DECOR_RESIZEH));
}

gint
PopUp::remove_prompt_timeout (void *arg)
{
        PopUp *pup = (PopUp *) arg;

        pup->remove ();
        return FALSE;
}

static gint idle_delete (void *arg)
{
        delete static_cast<PopUp*> (arg);
        return FALSE;
}

void
PopUp::remove ()
{
        hide ();

        if (popdown_time != 0 && timeout != -1) {
                g_source_remove (timeout);
        }

        if (delete_on_hide) {
                std::cerr << "deleting prompter\n";
                g_idle_add (idle_delete, this);
        }
}
#define ENSURE_GUI_THREAD(slot) \
     if (!Gtkmm2ext::UI::instance()->caller_is_ui_thread()) {\
             Gtkmm2ext::UI::instance()->call_slot (MISSING_INVALIDATOR, (slot)); \
        return;\
     }


void
PopUp::touch ()
{
        ENSURE_GUI_THREAD (mem_fun (*this, &PopUp::touch));

        if (is_visible ()) {
                remove ();
        } else {
                set_size_request_to_display_given_text (label, my_text.c_str(), 25, 10);
                label.set_text (my_text);
                show_all ();
                
                if (popdown_time != 0) {
                        timeout = g_timeout_add (popdown_time, 
                                                   remove_prompt_timeout, 
                                                   this);
                }
        }
}

gint
PopUp::button_click (GdkEventButton* /*ev*/)
{
        remove ();
        return TRUE;
}

void
PopUp::set_text (string txt)
{
        my_text = txt;
}

void
PopUp::set_name (string name)
{
        Window::set_name (name);
        label.set_name (name);
}

bool
PopUp::on_delete_event (GdkEventAny* /*ev*/)
{
        hide();

        if (popdown_time != 0 && timeout != -1) {
                g_source_remove (timeout);
        }       

        if (delete_on_hide) {
                std::cerr << "deleting prompter\n" << endl;
                g_idle_add (idle_delete, this);
        }

        return true;
}