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path: root/calendar/gui/goto.c
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/* Go to date dialog for gnomecal
 *
 * Copyright (C) 1998 Red Hat Software, Inc.
 *
 * Author: Federico Mena <federico@nuclecu.unam.mx>
 */

#include <config.h>
#include <gnome.h>
#include "gnome-cal.h"
#include "gnome-month-item.h"


static void
highlight_current_day (GnomeMonthItem *mitem)
{
    struct tm *tm;
    time_t t;

    t = time (NULL);
    tm = localtime (&t);

    if ((mitem->year == (tm->tm_year + 1900)) && (mitem->month == tm->tm_mon)) {
        ;
        /* FIXME */
    }
}

/* Callback used when the year adjustment is changed */
static void
year_changed (GtkAdjustment *adj, GtkWidget *dialog)
{
    GnomeCanvasItem *mitem;

    mitem = gtk_object_get_data (GTK_OBJECT (dialog), "month_item");
    gnome_canvas_item_set (mitem,
                   "year", (int) adj->value,
                   NULL);
    highlight_current_day (GNOME_MONTH_ITEM (mitem));
}

/* Creates the year control with its adjustment */
static GtkWidget *
create_year (GtkWidget *dialog, GnomeCalendar *gcal, int year)
{
    GtkWidget *hbox;
    GtkAdjustment *adj;
    GtkWidget *w;

    hbox = gtk_hbox_new (FALSE, GNOME_PAD_SMALL);

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

    adj = GTK_ADJUSTMENT (gtk_adjustment_new (year, 1900, 9999, 1, 10, 10));
    gtk_signal_connect (GTK_OBJECT (adj), "value_changed",
                (GtkSignalFunc) year_changed,
                dialog);

    w = gtk_spin_button_new (adj, 1.0, 0);
    gtk_widget_set_usize (w, 60, 0);
    gtk_box_pack_start (GTK_BOX (hbox), w, FALSE, FALSE, 0);
    gtk_widget_show (w);

    return hbox;
}

/* Callback used when a month button is toggled */
static void
month_toggled (GtkToggleButton *toggle, gpointer data)
{
    GtkWidget *dialog;
    GnomeCanvasItem *mitem;

    if (!toggle->active)
        return;

    dialog = gtk_object_get_user_data (GTK_OBJECT (toggle));
    mitem = gtk_object_get_data (GTK_OBJECT (dialog), "month_item");
    gnome_canvas_item_set (mitem,
                   "month", GPOINTER_TO_INT (data),
                   NULL);
    highlight_current_day (GNOME_MONTH_ITEM (mitem));
}

/* Creates the months control */
static GtkWidget *
create_months (GtkWidget *dialog, GnomeCalendar *gcal, int month)
{
    GtkWidget *table;
    GtkWidget *w;
    GSList *group;
    int i, row, col;
    struct tm tm;
    char buf[100];

    tm = *localtime (&gcal->current_display);

    table = gtk_table_new (2, 6, TRUE);

    group = NULL;

    for (i = 0; i < 12; i++) {
        row = i / 6;
        col = i % 6;

        tm.tm_mon = i;
        strftime (buf, 100, "%b", &tm);

        w = gtk_radio_button_new (group);
        group = gtk_radio_button_group (GTK_RADIO_BUTTON (w));
        gtk_object_set_user_data (GTK_OBJECT (w), dialog);
        gtk_toggle_button_set_mode (GTK_TOGGLE_BUTTON (w), FALSE);

        gtk_container_add (GTK_CONTAINER (w), gtk_label_new (buf));

        if (i == month)
            gtk_toggle_button_set_state (GTK_TOGGLE_BUTTON (w), TRUE);

        gtk_signal_connect (GTK_OBJECT (w), "toggled",
                    (GtkSignalFunc) month_toggled,
                    GINT_TO_POINTER (i));
        gtk_table_attach (GTK_TABLE (table), w,
                  col, col + 1,
                  row, row + 1,
                  GTK_EXPAND | GTK_FILL,
                  GTK_EXPAND | GTK_FILL,
                  0, 0);
        gtk_widget_show_all (w);
    }

    return table;
}

/* Sets the scrolling region of the canvas to the allocation size */
static void
set_scroll_region (GtkWidget *widget, GtkAllocation *allocation, gpointer data)
{
    gnome_canvas_item_set (data,
                   "width", (double) (allocation->width - 1),
                   "height", (double) (allocation->height - 1),
                   NULL);

    gnome_canvas_set_scroll_region (GNOME_CANVAS (widget),
                    0, 0,
                    allocation->width, allocation->height);
}

/* Creates the canvas with the month item for selecting days */
static GtkWidget *
create_days (GtkWidget *dialog, GnomeCalendar *gcal, int day, int month, int year)
{
    GtkWidget *canvas;
    GnomeCanvasItem *mitem;

    canvas = gnome_canvas_new ();
    gnome_canvas_set_size (GNOME_CANVAS (canvas), 150, 120);

    mitem = gnome_month_item_new (GNOME_CANVAS_GROUP (GNOME_CANVAS (canvas)->root));
    gnome_canvas_item_set (mitem,
                   "month", month,
                   "year", year,
                   NULL);
    highlight_current_day (GNOME_MONTH_ITEM (mitem));

    gtk_object_set_data (GTK_OBJECT (dialog), "month_item", mitem);

    /* Connect to size_allocate so that we can change the size of the month item and the
     * scrolling region appropriately.
     */

    gtk_signal_connect (GTK_OBJECT (canvas), "size_allocate",
                (GtkSignalFunc) set_scroll_region,
                mitem);

    return canvas;
}

/* Creates a "goto date" dialog and runs it */
void
goto_dialog (GnomeCalendar *gcal)
{
    GtkWidget *dialog;
    GtkWidget *vbox;
    GtkWidget *w;
    struct tm *tm;

    tm = localtime (&gcal->current_display);

    dialog = gnome_dialog_new (_("Go to date"),
                   GNOME_STOCK_BUTTON_CANCEL,
                   NULL);

    vbox = GNOME_DIALOG (dialog)->vbox;

    /* Instructions */

    w = gtk_label_new (_("Please select the date you want to go to.\n"
                 "When you click on a day, you will be taken\n"
                 "to that date."));
    gtk_label_set_justify (GTK_LABEL (w), GTK_JUSTIFY_LEFT);
    gtk_misc_set_alignment (GTK_MISC (w), 0.0, 0.0);
    gtk_box_pack_start (GTK_BOX (vbox), w, FALSE, FALSE, 0);
    gtk_widget_show (w);

    /* Year */

    w = create_year (dialog, gcal, tm->tm_year + 1900);
    gtk_box_pack_start (GTK_BOX (vbox), w, FALSE, FALSE, 0);
    gtk_widget_show (w);

    /* Month */

    w = create_months (dialog, gcal, tm->tm_mon);
    gtk_box_pack_start (GTK_BOX (vbox), w, FALSE, FALSE, 0);
    gtk_widget_show (w);

    /* Days (canvas with month item) */

    w = create_days (dialog, gcal, tm->tm_mday, tm->tm_mon, tm->tm_year + 1900);
    gtk_box_pack_start (GTK_BOX (vbox), w, TRUE, TRUE, 0);
    gtk_widget_show (w);

    /* Run! */

    gnome_dialog_set_modal (GNOME_DIALOG (dialog));

    printf ("el dialogo regreso %d\n", gnome_dialog_run_and_destroy (GNOME_DIALOG (dialog)));
}