path: root/calendar/month-view.c

/* Month view display for gncal
 *
 * Copyright (C) 1998 Red Hat Software, Inc.
 *
 * Author: Federico Mena <federico@nuclecu.unam.mx>
 */

#include <config.h>
#include <libgnomeui/gnome-canvas-text.h>
#include "month-view.h"
#include "main.h"


#define SPACING 4       /* Spacing between title and calendar */


static void month_view_class_init    (MonthViewClass *class);
static void month_view_init          (MonthView      *mv);
static void month_view_size_request  (GtkWidget      *widget,
                      GtkRequisition *requisition);
static void month_view_size_allocate (GtkWidget      *widget,
                      GtkAllocation  *allocation);


static GnomeCanvasClass *parent_class;


GtkType
month_view_get_type (void)
{
    static GtkType month_view_type = 0;

    if (!month_view_type) {
        GtkTypeInfo month_view_info = {
            "MonthView",
            sizeof (MonthView),
            sizeof (MonthViewClass),
            (GtkClassInitFunc) month_view_class_init,
            (GtkObjectInitFunc) month_view_init,
            NULL, /* reserved_1 */
            NULL, /* reserved_2 */
            (GtkClassInitFunc) NULL
        };

        month_view_type = gtk_type_unique (gnome_canvas_get_type (), &month_view_info);
    }

    return month_view_type;
}

static void
month_view_class_init (MonthViewClass *class)
{
    GtkWidgetClass *widget_class;

    widget_class = (GtkWidgetClass *) class;

    parent_class = gtk_type_class (gnome_canvas_get_type ());

    widget_class->size_request = month_view_size_request;
    widget_class->size_allocate = month_view_size_allocate;
}

static void
month_view_init (MonthView *mv)
{
    /* Title */

    mv->title = gnome_canvas_item_new (GNOME_CANVAS_GROUP (mv->canvas.root),
                       gnome_canvas_text_get_type (),
                       "anchor", GTK_ANCHOR_N,
                       "font", "-*-helvetica-bold-r-normal--18-*-*-*-p-*-iso8859-1",
                       "fill_color", "black",
                       NULL);

    /* Month item */

    mv->mitem = gnome_month_item_new (GNOME_CANVAS_GROUP (mv->canvas.root));
    gnome_canvas_item_set (mv->mitem,
                   "x", 0.0,
                   "y", 0.0,
                   "anchor", GTK_ANCHOR_NW,
                   "day_anchor", GTK_ANCHOR_NE,
                   "start_on_monday", week_starts_on_monday,
                   NULL);
}

GtkWidget *
month_view_new (GnomeCalendar *calendar, time_t month)
{
    MonthView *mv;

    g_return_val_if_fail (calendar != NULL, NULL);

    mv = gtk_type_new (month_view_get_type ());
    mv->calendar = calendar;

    month_view_set (mv, month);

    return GTK_WIDGET (mv);
}

static void
month_view_size_request (GtkWidget *widget, GtkRequisition *requisition)
{
    g_return_if_fail (widget != NULL);
    g_return_if_fail (GTK_IS_WIDGET (widget));
    g_return_if_fail (requisition != NULL);

    if (GTK_WIDGET_CLASS (parent_class)->size_request)
        (* GTK_WIDGET_CLASS (parent_class)->size_request) (widget, requisition);

    requisition->width = 200;
    requisition->height = 150;
}

static void
month_view_size_allocate (GtkWidget *widget, GtkAllocation *allocation)
{
    MonthView *mv;
    GdkFont *font;
    GtkArg arg;
    int y;

    g_return_if_fail (widget != NULL);
    g_return_if_fail (GTK_IS_WIDGET (widget));
    g_return_if_fail (allocation != NULL);

    mv = MONTH_VIEW (widget);

    if (GTK_WIDGET_CLASS (parent_class)->size_allocate)
        (* GTK_WIDGET_CLASS (parent_class)->size_allocate) (widget, allocation);

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

    /* Adjust items to new size */

    arg.name = "font_gdk";
    gtk_object_getv (GTK_OBJECT (mv->title), 1, &arg);
    font = GTK_VALUE_BOXED (arg);

    gnome_canvas_item_set (mv->title,
                   "x", (double) allocation->width / 2.0,
                   "y", (double) SPACING,
                   NULL);

    y = font->ascent + font->descent + 2 * SPACING;
    gnome_canvas_item_set (mv->mitem,
                   "y", (double) y,
                   "width", (double) (allocation->width - 1),
                   "height", (double) (allocation->height - y - 1),
                   NULL);

    /* FIXME: adjust events */
}

void
month_view_update (MonthView *mv, iCalObject *object, int flags)
{
    g_return_if_fail (mv != NULL);
    g_return_if_fail (IS_MONTH_VIEW (mv));

    /* FIXME */
}

void
month_view_set (MonthView *mv, time_t month)
{
    struct tm *tm;
    char buf[100];

    g_return_if_fail (mv != NULL);
    g_return_if_fail (IS_MONTH_VIEW (mv));

    /* Title */

    tm = localtime (&month);
    strftime (buf, 100, "%B %Y", tm);

    gnome_canvas_item_set (mv->title,
                   "text", buf,
                   NULL);

    /* Month item */

    gnome_canvas_item_set (mv->mitem,
                   "year", tm->tm_year + 1900,
                   "month", tm->tm_mon,
                   NULL);

    /* FIXME: update events */
}

void
month_view_time_format_changed (MonthView *mv)
{
    g_return_if_fail (mv != NULL);
    g_return_if_fail (IS_MONTH_VIEW (mv));

    gnome_canvas_item_set (mv->mitem,
                   "start_on_monday", week_starts_on_monday,
                   NULL);

    /* FIXME: update events */
}