path: root/filter/e-search-bar.c

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* 
 * e-search-bar.c
 * Copyright (C) 2000  Helix Code, Inc.
 * Author: Chris Lahey <clahey@helixcode.com>
 *
 * This library 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 library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

#include <config.h>
#include <gnome.h>

#include "e-search-bar.h"
#include <gal/widgets/e-unicode.h>

static void e_search_bar_init       (ESearchBar      *card);
static void e_search_bar_class_init (ESearchBarClass     *klass);
static void e_search_bar_set_arg (GtkObject *o, GtkArg *arg, guint arg_id);
static void e_search_bar_get_arg (GtkObject *object, GtkArg *arg, guint arg_id);
static void e_search_bar_destroy (GtkObject *object);

enum {
    QUERY_CHANGED,
    MENU_ACTIVATED,

    LAST_SIGNAL
};

static gint esb_signals [LAST_SIGNAL] = { 0, };

static GtkHBoxClass *parent_class = NULL;

/* The arguments we take */
enum {
    ARG_0,
    ARG_OPTION_CHOICE,
    ARG_TEXT,
};

GtkType
e_search_bar_get_type (void)
{
    static GtkType type = 0;

    if (!type) {
        static const GtkTypeInfo info =
        {
            "ESearchBar",
            sizeof (ESearchBar),
            sizeof (ESearchBarClass),
            (GtkClassInitFunc) e_search_bar_class_init,
            (GtkObjectInitFunc) e_search_bar_init,
            /* reserved_1 */ NULL,
                /* reserved_2 */ NULL,
            (GtkClassInitFunc) NULL,
        };
        
        type = gtk_type_unique (gtk_hbox_get_type (), &info);
    }

    return type;
}

static void
e_search_bar_class_init (ESearchBarClass *klass)
{
    GtkObjectClass *object_class;

    object_class = GTK_OBJECT_CLASS(klass);

    parent_class = gtk_type_class (gtk_hbox_get_type ());

    object_class->set_arg = e_search_bar_set_arg;
    object_class->get_arg = e_search_bar_get_arg;
    object_class->destroy = e_search_bar_destroy;

    gtk_object_add_arg_type ("ESearchBar::option_choice", GTK_TYPE_ENUM,
                 GTK_ARG_READWRITE, ARG_OPTION_CHOICE);
    gtk_object_add_arg_type ("ESearchBar::text", GTK_TYPE_STRING,
                 GTK_ARG_READWRITE, ARG_TEXT);

    esb_signals [QUERY_CHANGED] =
        gtk_signal_new ("query_changed",
                GTK_RUN_LAST,
                object_class->type,
                GTK_SIGNAL_OFFSET (ESearchBarClass, query_changed),
                gtk_marshal_NONE__NONE,
                GTK_TYPE_NONE, 0);

    esb_signals [MENU_ACTIVATED] =
        gtk_signal_new ("menu_activated",
                GTK_RUN_LAST,
                object_class->type,
                GTK_SIGNAL_OFFSET (ESearchBarClass, menu_activated),
                gtk_marshal_NONE__INT,
                GTK_TYPE_NONE, 1, GTK_TYPE_INT);

    gtk_object_class_add_signals (object_class, esb_signals, LAST_SIGNAL);
}

static void
esb_query_changed(ESearchBar *esb)
{
    gtk_signal_emit(GTK_OBJECT (esb),
            esb_signals [QUERY_CHANGED]);
}

static void
esb_menu_activated(ESearchBar *esb, int item)
{
    gtk_signal_emit(GTK_OBJECT (esb),
            esb_signals [MENU_ACTIVATED],
            item);
}

static void
esb_menubar_activated(GtkWidget *widget, ESearchBar *esb)
{
    int id = GPOINTER_TO_INT(gtk_object_get_data (GTK_OBJECT (widget), "EsbMenuId"));

    esb_menu_activated(esb, id);
}

static void
esb_pack_menubar(ESearchBar *esb, ESearchBarItem *items)
{
    GtkWidget *menu, *menuitem;
    int i;

    menu = gtk_menu_new ();
    for (i = 0; items[i].id != -1; i++) {
        GtkWidget *item;

        item = gtk_menu_item_new_with_label (_(items[i].text));

        gtk_menu_append (GTK_MENU (menu), item);

        gtk_object_set_data (GTK_OBJECT (item), "EsbMenuId", GINT_TO_POINTER(items[i].id));

        gtk_signal_connect (GTK_OBJECT (item), "activate",
                    GTK_SIGNAL_FUNC (esb_menubar_activated),
                    esb);
    }
    gtk_widget_show_all (menu);

    menuitem = gtk_menu_item_new_with_label(_("Search"));
    gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), menu);

    gtk_widget_show (menuitem);

    gtk_menu_bar_append (GTK_MENU_BAR(esb->menubar), menuitem);
    gtk_widget_set_sensitive (esb->menubar, TRUE);
}

static void
esb_option_activated(GtkWidget *widget, ESearchBar *esb)
{
    int id = GPOINTER_TO_INT(gtk_object_get_data (GTK_OBJECT (widget), "EsbChoiceId"));

    esb->option_choice = id;
    esb_query_changed(esb);
}

static void
esb_entry_activated(GtkWidget *widget, ESearchBar *esb)
{
    esb_query_changed(esb);
}

static void
esb_pack_option_menu(ESearchBar *esb, ESearchBarItem *items)
{
    GtkWidget *menu;
    int i;

    menu = gtk_menu_new ();
    for (i = 0; items[i].id != -1; i++) {
        GtkWidget *item;

        item = gtk_menu_item_new_with_label (_(items[i].text));

        gtk_menu_append (GTK_MENU (menu), item);

        gtk_object_set_data (GTK_OBJECT (item), "EsbChoiceId", GINT_TO_POINTER(items[i].id));

        gtk_signal_connect (GTK_OBJECT (item), "activate",
                    GTK_SIGNAL_FUNC (esb_option_activated),
                    esb);
    }
    gtk_widget_show_all (menu);

    gtk_option_menu_set_menu (GTK_OPTION_MENU (esb->option), 
                  menu);
    gtk_option_menu_set_history (GTK_OPTION_MENU (esb->option), 0);
    gtk_widget_set_sensitive (esb->option, TRUE);
}

static void
e_search_bar_init (ESearchBar *esb)
{
    GtkWidget *spacer;

    gtk_box_set_spacing(GTK_BOX(esb), 1);

    esb->menubar = gtk_menu_bar_new();
    gtk_widget_show(esb->menubar);
    gtk_box_pack_start(GTK_BOX(esb), esb->menubar, FALSE, FALSE, 0);

    esb->option = gtk_option_menu_new();
    gtk_widget_show(esb->option);
    gtk_box_pack_start(GTK_BOX(esb), esb->option, FALSE, FALSE, 0);

    esb->entry = gtk_entry_new();
    gtk_signal_connect (GTK_OBJECT (esb->entry), "activate",
                GTK_SIGNAL_FUNC (esb_entry_activated), esb);
    gtk_widget_show(esb->entry);
    gtk_box_pack_start(GTK_BOX(esb), esb->entry, TRUE, TRUE, 0);
    esb->option_choice = 0;

    spacer = gtk_drawing_area_new();
    gtk_widget_show(spacer);
    gtk_box_pack_start(GTK_BOX(esb), spacer, FALSE, FALSE, 0);
    gtk_widget_set_usize(spacer, 15, 1);
}

static void
e_search_bar_destroy (GtkObject *object)
{
    if (GTK_OBJECT_CLASS(parent_class)->destroy)
        GTK_OBJECT_CLASS(parent_class)->destroy(object);
}

GtkWidget *
e_search_bar_new        (ESearchBarItem *menu_items,
             ESearchBarItem *option_items)
{
    GtkWidget *widget = GTK_WIDGET (gtk_type_new (e_search_bar_get_type ()));
    esb_pack_menubar(E_SEARCH_BAR(widget), menu_items);
    esb_pack_option_menu(E_SEARCH_BAR(widget), option_items);
    return widget;
}

static void
e_search_bar_get_arg (GtkObject *object, GtkArg *arg, guint arg_id)
{
    ESearchBar *esb = E_SEARCH_BAR(object);

    switch (arg_id) {
    case ARG_OPTION_CHOICE:
        GTK_VALUE_ENUM (*arg) = esb->option_choice;
        break;

    case ARG_TEXT:
        GTK_VALUE_STRING (*arg) = e_utf8_gtk_editable_get_text(GTK_EDITABLE(esb->entry));
        break;

    default:
        arg->type = GTK_TYPE_INVALID;
        break;
    }
}

static void
e_search_bar_set_arg (GtkObject *object, GtkArg *arg, guint arg_id)
{
    ESearchBar *esb = E_SEARCH_BAR(object);

    switch (arg_id) {
    case ARG_OPTION_CHOICE:
        esb->option_choice = GTK_VALUE_ENUM (*arg);
        gtk_option_menu_set_history (GTK_OPTION_MENU (esb->option), esb->option_choice);
        esb_query_changed(esb);
        break;

    case ARG_TEXT:
        e_utf8_gtk_editable_set_text(GTK_EDITABLE(esb->entry), GTK_VALUE_STRING (*arg));
        esb_query_changed(esb);
        break;

    default:
        break;
    }
}