path: root/filter/score-rule.c

/*
 *  Copyright (C) 2000 Helix Code Inc.
 *
 *  Authors: Not Zed <notzed@lostzed.mmc.com.au>
 *
 *  This program is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Library 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 Library General Public License for more details.
 *
 *  You should have received a copy of the GNU Library General Public
 *  License along with this program; if not, write to the Free Software
 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include <gtk/gtk.h>
#include <gnome.h>

#include "score-rule.h"

static xmlNodePtr xml_encode(FilterRule *);
static int xml_decode(FilterRule *, xmlNodePtr, struct _RuleContext *f);
/*static void build_code(FilterRule *, GString *out);*/
static GtkWidget *get_widget(FilterRule *fr, struct _RuleContext *f);

static void score_rule_class_init   (ScoreRuleClass *class);
static void score_rule_init (ScoreRule *gspaper);
static void score_rule_finalise (GtkObject *obj);

#define _PRIVATE(x) (((ScoreRule *)(x))->priv)

struct _ScoreRulePrivate {
};

static FilterRuleClass *parent_class;

enum {
    LAST_SIGNAL
};

static guint signals[LAST_SIGNAL] = { 0 };

guint
score_rule_get_type (void)
{
    static guint type = 0;
    
    if (!type) {
        GtkTypeInfo type_info = {
            "ScoreRule",
            sizeof(ScoreRule),
            sizeof(ScoreRuleClass),
            (GtkClassInitFunc)score_rule_class_init,
            (GtkObjectInitFunc)score_rule_init,
            (GtkArgSetFunc)NULL,
            (GtkArgGetFunc)NULL
        };
        
        type = gtk_type_unique(filter_rule_get_type (), &type_info);
    }
    
    return type;
}

static void
score_rule_class_init (ScoreRuleClass *class)
{
    GtkObjectClass *object_class;
    FilterRuleClass *rule_class = (FilterRuleClass *)class;

    object_class = (GtkObjectClass *)class;
    parent_class = gtk_type_class(filter_rule_get_type ());

    object_class->finalize = score_rule_finalise;

    /* override methods */
    rule_class->xml_encode = xml_encode;
    rule_class->xml_decode = xml_decode;
/*  rule_class->build_code = build_code;*/
    rule_class->get_widget = get_widget;

    /* signals */

    gtk_object_class_add_signals(object_class, signals, LAST_SIGNAL);
}

static void
score_rule_init (ScoreRule *o)
{
    o->priv = g_malloc0(sizeof(*o->priv));
}

static void
score_rule_finalise(GtkObject *obj)
{
    ScoreRule *o = (ScoreRule *)obj;

    o = o;

        ((GtkObjectClass *)(parent_class))->finalize(obj);
}

/**
 * score_rule_new:
 *
 * Create a new ScoreRule object.
 * 
 * Return value: A new #ScoreRule object.
 **/
ScoreRule *
score_rule_new(void)
{
    ScoreRule *o = (ScoreRule *)gtk_type_new(score_rule_get_type ());
    return o;
}

static xmlNodePtr xml_encode(FilterRule *fr)
{
    ScoreRule *sr = (ScoreRule *)fr;
    xmlNodePtr node, value;
    char number[16];

    node = ((FilterRuleClass *)(parent_class))->xml_encode(fr);
    sprintf(number, "%d", sr->score);
    value = xmlNewNode(NULL, "score");
    xmlSetProp(value, "value", number);
    xmlAddChild(node, value);
    return node;
}

static int xml_decode(FilterRule *fr, xmlNodePtr node, struct _RuleContext *f)
{
    ScoreRule *sr = (ScoreRule *)fr;
    xmlNodePtr value;
    int result;
    char *str;

    result = ((FilterRuleClass *)(parent_class))->xml_decode(fr, node, f);
    if (result != 0)
        return result;
    value = node->childs;
    while (value) {
        if (!strcmp(value->name, "score")) {
            str = xmlGetProp(value, "value");
            sscanf(str, "%d", &sr->score);
        }
        value = value->next;
    }
    return 0;
}

/*static void build_code(FilterRule *fr, GString *out)
{
}*/

static void spin_changed(GtkAdjustment *adj, ScoreRule *sr)
{
    sr->score = adj->value;
}

static GtkWidget *get_widget(FilterRule *fr, struct _RuleContext *f)
{
    GtkWidget *widget;
    GtkFrame *frame;
    GtkLabel *label;
    GtkHBox *hbox;
    GtkAdjustment *adj;
    ScoreRule *sr = (ScoreRule *)fr;
    GtkSpinButton *spin;

        widget = ((FilterRuleClass *)(parent_class))->get_widget(fr, f);
    frame = (GtkFrame *)gtk_frame_new("Score");
    hbox = (GtkHBox *)gtk_hbox_new(FALSE, 3);
    label = (GtkLabel *)gtk_label_new("Score");
    gtk_box_pack_start((GtkBox *)hbox, (GtkWidget *)label, FALSE, FALSE, 3);
    adj = (GtkAdjustment *)gtk_adjustment_new((float)sr->score, -100, 100, 1, 10, 10);
    gtk_signal_connect((GtkObject *)adj, "value_changed", spin_changed, sr);
    spin = (GtkSpinButton *)gtk_spin_button_new(adj, 1.0, 0);
    gtk_box_pack_start((GtkBox *)hbox, (GtkWidget *)spin, FALSE, FALSE, 3);
    gtk_container_add((GtkContainer *)frame, (GtkWidget *)hbox);
    gtk_widget_show_all((GtkWidget *)frame);

    gtk_box_pack_start((GtkBox *)widget, (GtkWidget *)frame, FALSE, FALSE, 3);
    return widget;
}