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path: root/calendar/gncal-todo.c
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/* To-do widget for gncal
 *
 * Copyright (C) 1998 The Free Software Foundation
 *
 * Author: Federico Mena <quartic@gimp.org>
 */

#include <config.h>
#include <string.h>
#include <gnome.h>
#include "gncal-todo.h"
#include "main.h"
#include "popup-menu.h"


static void gncal_todo_init (GncalTodo *todo);


guint
gncal_todo_get_type (void)
{
    static guint todo_type = 0;

    if (!todo_type) {
        GtkTypeInfo todo_info = {
            "GncalTodo",
            sizeof (GncalTodo),
            sizeof (GncalTodoClass),
            (GtkClassInitFunc) NULL,
            (GtkObjectInitFunc) gncal_todo_init,
            (GtkArgSetFunc) NULL,
            (GtkArgGetFunc) NULL
        };

        todo_type = gtk_type_unique (gtk_vbox_get_type (), &todo_info);
    }

    return todo_type;
}

static void
ok_button (GtkWidget *widget, GnomeDialog *dialog)
{
    iCalObject *ico;
    GncalTodo *todo;
    GtkEntry *entry;

    ico = gtk_object_get_user_data (GTK_OBJECT (dialog));

    todo = GNCAL_TODO (gtk_object_get_data (GTK_OBJECT (dialog), "gncal_todo"));
    entry = GTK_ENTRY (gtk_object_get_data (GTK_OBJECT (dialog), "summary_entry"));

    if (ico->summary)
        g_free (ico->summary);

    ico->summary = g_strdup (gtk_entry_get_text (entry));
    ico->user_data = NULL;

    if (ico->new) {
        gnome_calendar_add_object (todo->calendar, ico);
        ico->new = FALSE;
    } else 
        gnome_calendar_object_changed (todo->calendar, ico, CHANGE_ALL); /* ok, summary only... */

    save_default_calendar (todo->calendar);
    gtk_widget_destroy (GTK_WIDGET (dialog));
}

static void
cancel_button (GtkWidget *widget, GnomeDialog *dialog)
{
    iCalObject *ico;

    ico = gtk_object_get_user_data (GTK_OBJECT (dialog));

    ico->user_data = NULL;

    if (ico->new)
        ical_object_destroy (ico);

    gtk_widget_destroy (GTK_WIDGET (dialog));
}

static gint
delete_event (GtkWidget *widget, GdkEvent *event, GnomeDialog *dialog)
{
    cancel_button (NULL, dialog);
    return TRUE;
}

static void
simple_todo_editor (GncalTodo *todo, iCalObject *ico)
{
    GtkWidget *dialog;
    GtkWidget *hbox;
    GtkWidget *w;
    GtkWidget *entry;

    dialog = gnome_dialog_new (ico->new ? _("Create to-do item") : _("Edit to-do item"),
                   GNOME_STOCK_BUTTON_OK,
                   GNOME_STOCK_BUTTON_CANCEL,
                   NULL);
    gnome_dialog_set_parent (GNOME_DIALOG (dialog), GTK_WINDOW (todo->calendar));
    hbox = gtk_hbox_new (FALSE, 4);
    gtk_container_border_width (GTK_CONTAINER (hbox), 4);
    gtk_box_pack_start (GTK_BOX (GNOME_DIALOG (dialog)->vbox), hbox, FALSE, FALSE, 0);
    gtk_widget_show (hbox);

    w = gtk_label_new (_("Summary:"));
    gtk_box_pack_start (GTK_BOX (hbox), w, FALSE, FALSE, 0);
    gtk_widget_show (w);

    entry = gtk_entry_new ();
    gtk_entry_set_text (GTK_ENTRY (entry), ico->summary);
    gtk_box_pack_start (GTK_BOX (hbox), entry, TRUE, TRUE, 0);
    gtk_widget_show (entry);

    ico->user_data = dialog;

    gtk_object_set_user_data (GTK_OBJECT (dialog), ico);

    gtk_object_set_data (GTK_OBJECT (dialog), "gncal_todo", todo);
    gtk_object_set_data (GTK_OBJECT (dialog), "summary_entry", entry);

    gnome_dialog_button_connect (GNOME_DIALOG (dialog), 0, (GtkSignalFunc) ok_button, dialog);
    gnome_dialog_button_connect (GNOME_DIALOG (dialog), 1, (GtkSignalFunc) cancel_button, dialog);
    gtk_signal_connect (GTK_OBJECT (dialog), "delete_event",
                (GtkSignalFunc) delete_event,
                dialog);

    gnome_dialog_set_default (GNOME_DIALOG (dialog), 0);
    gnome_dialog_editable_enters (GNOME_DIALOG (dialog), GTK_EDITABLE(entry));

    gtk_window_position (GTK_WINDOW (dialog), GTK_WIN_POS_MOUSE);
    gtk_widget_show (dialog);
    gtk_widget_grab_focus (entry);
}

static iCalObject *
get_clist_selected_ico (GtkCList *clist)
{
    gint sel;

    if (!clist->selection)
        return NULL;

    sel = GPOINTER_TO_INT(clist->selection->data);

    return gtk_clist_get_row_data (clist, sel);
}

static void
add_todo (GncalTodo *todo)
{
    iCalObject *ico;

    ico = ical_new ("", user_name, "");
    ico->type = ICAL_TODO;
    ico->new = TRUE;

    simple_todo_editor (todo, ico);
}

static void
edit_todo (GncalTodo *todo)
{
    simple_todo_editor (todo, get_clist_selected_ico (todo->clist));
}

static void
delete_todo (GncalTodo *todo)
{
    gnome_calendar_remove_object (todo->calendar, get_clist_selected_ico (todo->clist));
    save_default_calendar (todo->calendar);
}

static void
add_activated (GtkWidget *widget, GncalTodo *todo)
{
    add_todo (todo);
}

static void
edit_activated (GtkWidget *widget, GncalTodo *todo)
{
    edit_todo (todo);
}

static void
delete_activated (GtkWidget *widget, GncalTodo *todo)
{
    delete_todo (todo);
}

static void
clist_row_selected (GtkCList *clist, gint row, gint column, GdkEventButton *event, GncalTodo *todo)
{
    static struct menu_item items[] = {
        { N_("Add to-do item..."), (GtkSignalFunc) add_activated, NULL, TRUE },
        { N_("Edit this item..."), (GtkSignalFunc) edit_activated, NULL, TRUE },
        { N_("Delete this item"), (GtkSignalFunc) delete_activated, NULL, TRUE }
    };

    int i;

    gtk_widget_set_sensitive (todo->edit_button, (todo->clist->selection != NULL));
    gtk_widget_set_sensitive (todo->delete_button, (todo->clist->selection != NULL));

    if (!event)
        return;

    switch (event->button) {
    case 1:
        if (event->type == GDK_2BUTTON_PRESS)
            edit_todo (todo);
        break;

    case 3:
        for (i = 0; i < (sizeof (items) / sizeof (items[0])); i++)
            items[i].data = todo;

        popup_menu (items, sizeof (items) / sizeof (items[0]), event);
        break;

    default:
        break;
    }
}

static void
gncal_todo_init (GncalTodo *todo)
{
    GtkWidget *w;
    GtkWidget *sw;
    GtkWidget *hbox;

    gtk_box_set_spacing (GTK_BOX (todo), 4);

    /* Label */

    w = gtk_label_new (_("To-do list"));
    gtk_misc_set_alignment (GTK_MISC (w), 0.0, 0.5);
    gtk_box_pack_start (GTK_BOX (todo), w, FALSE, FALSE, 0);
    gtk_widget_show (w);

    /* Clist */

    sw = gtk_scrolled_window_new (NULL, NULL);
    gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
    gtk_box_pack_start (GTK_BOX (todo), sw, TRUE, TRUE, 0);
    gtk_widget_show (sw);

    w = gtk_clist_new (1);
    todo->clist = GTK_CLIST (w);
    gtk_clist_set_selection_mode (todo->clist, GTK_SELECTION_BROWSE);

    gtk_signal_connect (GTK_OBJECT (todo->clist), "select_row",
                (GtkSignalFunc) clist_row_selected,
                todo);

    gtk_container_add (GTK_CONTAINER (sw), w);
    gtk_widget_show (w);

    /* Box for buttons */

    hbox = gtk_hbox_new (TRUE, 4);
    gtk_box_pack_start (GTK_BOX (todo), hbox, FALSE, FALSE, 0);
    gtk_widget_show (hbox);

    /* Add */

    w = gtk_button_new_with_label (_("Add..."));
    gtk_signal_connect (GTK_OBJECT (w), "clicked",
                (GtkSignalFunc) add_activated,
                todo);
    gtk_box_pack_start (GTK_BOX (hbox), w, TRUE, TRUE, 0);
    gtk_widget_show (w);

    /* Edit */

    w = gtk_button_new_with_label (_("Edit..."));
    todo->edit_button = w;
    gtk_widget_set_sensitive (w, FALSE);
    gtk_signal_connect (GTK_OBJECT (w), "clicked",
                (GtkSignalFunc) edit_activated,
                todo);
    gtk_box_pack_start (GTK_BOX (hbox), w, TRUE, TRUE, 0);
    gtk_widget_show (w);

    /* Delete */

    w = gtk_button_new_with_label (_("Delete"));
    todo->delete_button = w;
    gtk_widget_set_sensitive (w, FALSE);
    gtk_signal_connect (GTK_OBJECT (w), "clicked",
                (GtkSignalFunc) delete_activated,
                todo);
    gtk_box_pack_start (GTK_BOX (hbox), w, TRUE, TRUE, 0);
    gtk_widget_show (w);
}

GtkWidget *
gncal_todo_new (GnomeCalendar *calendar)
{
    GncalTodo *todo;

    g_return_val_if_fail (calendar != NULL, NULL);

    todo = gtk_type_new (gncal_todo_get_type ());

    todo->calendar = calendar;

    gncal_todo_update (todo, NULL, 0);

    return GTK_WIDGET (todo);
}

static void
insert_in_clist (GncalTodo *todo, iCalObject *ico)
{
    int i;
    char *text[1] = { ico->summary };
    iCalObject *row_ico;

    if (ico->priority == 0)
        i = gtk_clist_append (todo->clist, text); /* items with undefined priority go to the end of the list */
    else {

        /* Find proper place in clist to insert object.  Objects are sorted by priority. */

        for (i = 0; i < todo->clist->rows; i++) {
            row_ico = gtk_clist_get_row_data (todo->clist, i);

            if (ico->priority >= row_ico->priority)
                break;
        }

        gtk_clist_insert (todo->clist, i, text);
    }

    /* Set the appropriate "done" icon and hook the object to the row */

    gtk_clist_set_row_data (todo->clist, i, ico);
}

void
gncal_todo_update (GncalTodo *todo, iCalObject *ico, int flags)
{
    GList *list;

    g_return_if_fail (todo != NULL);
    g_return_if_fail (GNCAL_IS_TODO (todo));

    gtk_clist_freeze (todo->clist);

    gtk_clist_clear (todo->clist);

    for (list = todo->calendar->cal->todo; list; list = list->next)
        insert_in_clist (todo, list->data);

    gtk_clist_thaw (todo->clist);

    gtk_widget_set_sensitive (todo->edit_button, (todo->clist->selection != NULL));
    gtk_widget_set_sensitive (todo->delete_button, (todo->clist->selection != NULL));
}