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/*
* The Real SoundTracker - GTK+ Spinbutton extensions
*
* Copyright (C) 1999 Michael Krause
*
* 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <math.h>
#include "extspinbutton.h"
/* These two defines have been taken from gtkspinbutton.c in gtk+-1.2.1
Unfortunately there's no cleaner solution */
#define MIN_SPIN_BUTTON_WIDTH 30
#define ARROW_SIZE 11
static GtkEntryClass *parent_class = NULL;
static int
extspinbutton_find_display_digits (GtkAdjustment *adjustment)
{
int num_digits;
num_digits = adjustment->lower < 0 || adjustment->upper < 0;
num_digits += ceil(log10(MAX(1000, MAX(ABS(adjustment->lower), ABS(adjustment->upper)))));
return num_digits;
}
static void
extspinbutton_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
g_return_if_fail (widget != NULL);
g_return_if_fail (requisition != NULL);
g_return_if_fail (GTK_IS_SPIN_BUTTON (widget));
GTK_WIDGET_CLASS (parent_class)->size_request (widget, requisition);
requisition->width = MAX (MIN_SPIN_BUTTON_WIDTH,
extspinbutton_find_display_digits(GTK_SPIN_BUTTON(widget)->adjustment)
* gdk_string_width(widget->style->font, "X"))
+ ARROW_SIZE
+ 2 * widget->style->klass->xthickness;
}
GtkWidget *
extspinbutton_new (GtkAdjustment *adjustment,
gfloat climb_rate,
guint digits)
{
ExtSpinButton *s;
s = gtk_type_new(extspinbutton_get_type());
gtk_spin_button_configure(GTK_SPIN_BUTTON(s), adjustment, climb_rate, digits);
return GTK_WIDGET(s);
}
static void
extspinbutton_init (ExtSpinButton *s)
{
}
static void
extspinbutton_class_init (ExtSpinButtonClass *class)
{
GtkWidgetClass *widget_class;
widget_class = (GtkWidgetClass*)class;
widget_class->size_request = extspinbutton_size_request;
parent_class = gtk_type_class (GTK_TYPE_ENTRY);
}
guint
extspinbutton_get_type (void)
{
static guint extspinbutton_type = 0;
if (!extspinbutton_type) {
GtkTypeInfo extspinbutton_info =
{
"ExtSpinButton",
sizeof(ExtSpinButton),
sizeof(ExtSpinButtonClass),
(GtkClassInitFunc) extspinbutton_class_init,
(GtkObjectInitFunc) extspinbutton_init,
(GtkArgSetFunc) NULL,
(GtkArgGetFunc) NULL,
};
extspinbutton_type = gtk_type_unique(gtk_spin_button_get_type (), &extspinbutton_info);
}
return extspinbutton_type;
}
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