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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Copyright 2013 Red Hat, Inc.
*/
/**
* SECTION:nmt-newt-entry-numeric
* @short_description: Numeric text entry
*
* #NmtNewtEntryNumeric implements a numeric-only #NmtNewtEntry.
*
* #NmtNewtEntryNumeric provides its own #NmtNewtEntryFilter and
* #NmtNewtEntryValidator functions, so you should not set your own.
*/
#include "config.h"
#include <stdlib.h>
#include "nmt-newt-entry-numeric.h"
G_DEFINE_TYPE (NmtNewtEntryNumeric, nmt_newt_entry_numeric, NMT_TYPE_NEWT_ENTRY)
#define NMT_NEWT_ENTRY_NUMERIC_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), NMT_TYPE_NEWT_ENTRY_NUMERIC, NmtNewtEntryNumericPrivate))
typedef struct {
int min, max;
} NmtNewtEntryNumericPrivate;
enum {
PROP_0,
PROP_MINIMUM,
PROP_MAXIMUM,
LAST_PROP
};
/**
* nmt_newt_entry_numeric_new:
* @width: the entry's width in characters
* @min: the minimum valid value
* @max: the maximum valid value
*
* Creates a new #NmtNewtEntryNumeric, accepting values in the
* indicated range.
*
* Returns: a new #NmtNewtEntryNumeric
*/
NmtNewtWidget *
nmt_newt_entry_numeric_new (int width,
int min,
int max)
{
return g_object_new (NMT_TYPE_NEWT_ENTRY_NUMERIC,
"width", width,
"minimum", min,
"maximum", max,
NULL);
}
static gboolean
newt_entry_numeric_filter (NmtNewtEntry *entry,
const char *text,
int ch,
int position,
gpointer user_data)
{
NmtNewtEntryNumericPrivate *priv = NMT_NEWT_ENTRY_NUMERIC_GET_PRIVATE (entry);
if (g_ascii_isdigit (ch))
return TRUE;
if (ch == '-' && position == 0 && priv->min < 0)
return TRUE;
return FALSE;
}
static gboolean
newt_entry_numeric_validate (NmtNewtEntry *entry,
const char *text,
gpointer user_data)
{
NmtNewtEntryNumericPrivate *priv = NMT_NEWT_ENTRY_NUMERIC_GET_PRIVATE (entry);
int val;
char *end;
if (!*text)
return FALSE;
val = strtoul (text, &end, 10);
if (*end)
return FALSE;
if (val < priv->min || val > priv->max)
return FALSE;
return TRUE;
}
static void
nmt_newt_entry_numeric_init (NmtNewtEntryNumeric *entry)
{
nmt_newt_entry_set_filter (NMT_NEWT_ENTRY (entry), newt_entry_numeric_filter, NULL);
nmt_newt_entry_set_validator (NMT_NEWT_ENTRY (entry), newt_entry_numeric_validate, NULL);
}
static void
nmt_newt_entry_numeric_constructed (GObject *object)
{
NmtNewtEntryNumericPrivate *priv = NMT_NEWT_ENTRY_NUMERIC_GET_PRIVATE (object);
if (!*nmt_newt_entry_get_text (NMT_NEWT_ENTRY (object))) {
char buf[32];
g_snprintf (buf, sizeof (buf), "%d", priv->min);
nmt_newt_entry_set_text (NMT_NEWT_ENTRY (object), buf);
}
G_OBJECT_CLASS (nmt_newt_entry_numeric_parent_class)->constructed (object);
}
static void
nmt_newt_entry_numeric_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
NmtNewtEntryNumericPrivate *priv = NMT_NEWT_ENTRY_NUMERIC_GET_PRIVATE (object);
switch (prop_id) {
case PROP_MINIMUM:
priv->min = g_value_get_int (value);
break;
case PROP_MAXIMUM:
priv->max = g_value_get_int (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
nmt_newt_entry_numeric_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
NmtNewtEntryNumericPrivate *priv = NMT_NEWT_ENTRY_NUMERIC_GET_PRIVATE (object);
switch (prop_id) {
case PROP_MINIMUM:
g_value_set_int (value, priv->min);
break;
case PROP_MAXIMUM:
g_value_set_int (value, priv->max);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
nmt_newt_entry_numeric_class_init (NmtNewtEntryNumericClass *entry_class)
{
GObjectClass *object_class = G_OBJECT_CLASS (entry_class);
g_type_class_add_private (entry_class, sizeof (NmtNewtEntryNumericPrivate));
/* virtual methods */
object_class->constructed = nmt_newt_entry_numeric_constructed;
object_class->set_property = nmt_newt_entry_numeric_set_property;
object_class->get_property = nmt_newt_entry_numeric_get_property;
/**
* NmtNewtEntryNumeric:minimum:
*
* The minimum #NmtNewtWidget:valid value for the entry. If this
* is non-negative, then the entry will not allow negative numbers
* to be entered.
*/
g_object_class_install_property
(object_class, PROP_MINIMUM,
g_param_spec_int ("minimum", "", "",
G_MININT, G_MAXINT, 0,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS));
/**
* NmtNewtEntryNumeric:maximum:
*
* The maximum #NmtNewtWidget:valid value for the entry.
*/
g_object_class_install_property
(object_class, PROP_MAXIMUM,
g_param_spec_int ("maximum", "", "",
G_MININT, G_MAXINT, G_MAXINT,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS));
}
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