path: root/filter/filter-int.c

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
 *  Ripped off by Sam Creasey <sammy@oh.verio.com> from
 *  filter-score by Jeffrey Stedfast <fejj@helixcode.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of version 2 of the GNU General Public
 * License as published by the Free Software Foundation.
 *
 * 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., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 *
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <stdlib.h>
#include <gtk/gtksignal.h>
#include <gtk/gtkspinbutton.h>

#include "e-util/e-sexp.h"
#include "filter-int.h"

#define d(x)

static int int_eq(FilterElement *fe, FilterElement *cm);
static void xml_create (FilterElement *fe, xmlNodePtr node);
static xmlNodePtr xml_encode (FilterElement *fe);
static int xml_decode (FilterElement *fe, xmlNodePtr node);
static GtkWidget *get_widget (FilterElement *fe);
static void build_code (FilterElement *fe, GString *out, struct _FilterPart *ff);
static void format_sexp (FilterElement *fe, GString *out);

static void filter_int_class_init (FilterIntClass *class);
static void filter_int_init (FilterInt *gspaper);
static void filter_int_finalise (GtkObject *obj);

static FilterElementClass *parent_class;

enum {
    LAST_SIGNAL
};

static guint signals[LAST_SIGNAL] = { 0 };

GtkType
filter_int_get_type (void)
{
    static GtkType type = 0;
    
    if (!type) {
        GtkTypeInfo type_info = {
            "FilterInt",
            sizeof (FilterInt),
            sizeof (FilterIntClass),
            (GtkClassInitFunc) filter_int_class_init,
            (GtkObjectInitFunc) filter_int_init,
            (GtkArgSetFunc) NULL,
            (GtkArgGetFunc) NULL
        };
        
        type = gtk_type_unique (filter_element_get_type (), &type_info);
    }
    
    return type;
}

static void
filter_int_class_init (FilterIntClass *class)
{
    GtkObjectClass *object_class;
    FilterElementClass *filter_element = (FilterElementClass *)class;
    
    object_class = (GtkObjectClass *)class;
    parent_class = gtk_type_class (filter_element_get_type ());
    
    object_class->finalize = filter_int_finalise;
    
    /* override methods */
    filter_element->eq = int_eq;
    filter_element->xml_create = xml_create;
    filter_element->xml_encode = xml_encode;
    filter_element->xml_decode = xml_decode;
    filter_element->get_widget = get_widget;
    filter_element->build_code = build_code;
    filter_element->format_sexp = format_sexp;
    
    /* signals */
    
    gtk_object_class_add_signals(object_class, signals, LAST_SIGNAL);
}

static void
filter_int_init (FilterInt *o)
{
    o->min = 0;
    o->max = G_MAXINT;
}

static void
filter_int_finalise(GtkObject *obj)
{
    FilterInt *o = (FilterInt *)obj;

    g_free(o->type);
    
        ((GtkObjectClass *)(parent_class))->finalize(obj);
}

/**
 * filter_int_new:
 *
 * Create a new FilterInt object.
 * 
 * Return value: A new #FilterInt object.
 **/
FilterInt *
filter_int_new (void)
{
    FilterInt *o = (FilterInt *)gtk_type_new(filter_int_get_type ());
    return o;
}

FilterInt *
filter_int_new_type(const char *type, int min, int max)
{
    FilterInt *o = (FilterInt *)gtk_type_new(filter_int_get_type ());
    o->type = g_strdup(type);
    o->min = min;
    o->max = max;
    return o;
}

void
filter_int_set_value(FilterInt *fi, int val)
{
    fi->val = val;
}

static int
int_eq(FilterElement *fe, FilterElement *cm)
{
        return ((FilterElementClass *)(parent_class))->eq(fe, cm)
        && ((FilterInt *)fe)->val == ((FilterInt *)cm)->val;
}

static void
xml_create (FilterElement *fe, xmlNodePtr node)
{
    /* parent implementation */
        ((FilterElementClass *)(parent_class))->xml_create(fe, node);
}

static xmlNodePtr
xml_encode (FilterElement *fe)
{
    xmlNodePtr value;
    FilterInt *fs = (FilterInt *)fe;
    char intval[32];
    const char *type;
    
    type = fs->type?fs->type:"integer";

    d(printf("Encoding %s as xml\n", type));
    
    value = xmlNewNode (NULL, "value");
    xmlSetProp (value, "name", fe->name);
    xmlSetProp (value, "type", type);
    
    sprintf(intval, "%d", fs->val);
    xmlSetProp (value, type, intval);
    
    return value;
}

static int
xml_decode (FilterElement *fe, xmlNodePtr node)
{
    FilterInt *fs = (FilterInt *)fe;
    char *name, *type;
    char *intval;
    
    d(printf("Decoding integer from xml %p\n", fe));
    
    name = xmlGetProp (node, "name");
    d(printf ("Name = %s\n", name));
    xmlFree (fe->name);
    fe->name = name;

    type = xmlGetProp(node, "type");
    d(printf ("Type = %s\n", type));
    g_free(fs->type);
    fs->type = g_strdup(type);
    xmlFree(type);
    
    intval = xmlGetProp (node, fs->type ? fs->type : "integer");
    if (intval) {
        d(printf ("Value = %s\n", intval));
        fs->val = atoi (intval);
        xmlFree (intval);
    } else {
        d(printf ("Value = ?unknown?\n"));
        fs->val = 0;
    }
    
    return 0;
}

static void
spin_changed (GtkWidget *spin, FilterElement *fe)
{
    FilterInt *fs = (FilterInt *)fe;
    
    fs->val = gtk_spin_button_get_value_as_int (GTK_SPIN_BUTTON (spin));
}

static GtkWidget *
get_widget (FilterElement *fe)
{
    GtkWidget *spin;
    GtkObject *adjustment;
    FilterInt *fs = (FilterInt *)fe;
    
    adjustment = gtk_adjustment_new (0.0, (gfloat)fs->min, (gfloat)fs->max, 1.0, 1.0, 1.0);
    spin = gtk_spin_button_new (GTK_ADJUSTMENT (adjustment), fs->max>fs->min+1000?5.0:1.0, 0);
    gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spin), TRUE);
    
    if (fs->val)
        gtk_spin_button_set_value (GTK_SPIN_BUTTON (spin), (gfloat) fs->val);
    
    gtk_signal_connect (GTK_OBJECT (spin), "changed", spin_changed, fe);
    
    return spin;
}

static void
build_code (FilterElement *fe, GString *out, struct _FilterPart *ff)
{
    return;
}

static void
format_sexp (FilterElement *fe, GString *out)
{
    FilterInt *fs = (FilterInt *)fe;

    g_string_sprintfa(out, "%d", fs->val);
}