119 lines
3.2 KiB
C
119 lines
3.2 KiB
C
/* GTK - The GIMP Toolkit
|
|
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
|
|
*
|
|
* This library 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 library 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 library; if not, write to the Free
|
|
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*/
|
|
#include "gtkadjustment.h"
|
|
#include "gtksignal.h"
|
|
|
|
|
|
enum {
|
|
CHANGED,
|
|
VALUE_CHANGED,
|
|
LAST_SIGNAL
|
|
};
|
|
|
|
|
|
static void gtk_adjustment_class_init (GtkAdjustmentClass *klass);
|
|
static void gtk_adjustment_init (GtkAdjustment *adjustment);
|
|
|
|
|
|
static gint adjustment_signals[LAST_SIGNAL] = { 0 };
|
|
|
|
|
|
guint
|
|
gtk_adjustment_get_type ()
|
|
{
|
|
static guint adjustment_type = 0;
|
|
|
|
if (!adjustment_type)
|
|
{
|
|
GtkTypeInfo adjustment_info =
|
|
{
|
|
"GtkAdjustment",
|
|
sizeof (GtkAdjustment),
|
|
sizeof (GtkAdjustmentClass),
|
|
(GtkClassInitFunc) gtk_adjustment_class_init,
|
|
(GtkObjectInitFunc) gtk_adjustment_init,
|
|
(GtkArgFunc) NULL,
|
|
};
|
|
|
|
adjustment_type = gtk_type_unique (gtk_data_get_type (), &adjustment_info);
|
|
}
|
|
|
|
return adjustment_type;
|
|
}
|
|
|
|
static void
|
|
gtk_adjustment_class_init (GtkAdjustmentClass *class)
|
|
{
|
|
GtkObjectClass *object_class;
|
|
|
|
object_class = (GtkObjectClass*) class;
|
|
|
|
adjustment_signals[CHANGED] =
|
|
gtk_signal_new ("changed",
|
|
GTK_RUN_FIRST | GTK_RUN_NO_RECURSE,
|
|
object_class->type,
|
|
GTK_SIGNAL_OFFSET (GtkAdjustmentClass, changed),
|
|
gtk_signal_default_marshaller,
|
|
GTK_TYPE_NONE, 0);
|
|
adjustment_signals[VALUE_CHANGED] =
|
|
gtk_signal_new ("value_changed",
|
|
GTK_RUN_FIRST | GTK_RUN_NO_RECURSE,
|
|
object_class->type,
|
|
GTK_SIGNAL_OFFSET (GtkAdjustmentClass, value_changed),
|
|
gtk_signal_default_marshaller,
|
|
GTK_TYPE_NONE, 0);
|
|
|
|
gtk_object_class_add_signals (object_class, adjustment_signals, LAST_SIGNAL);
|
|
|
|
class->changed = NULL;
|
|
class->value_changed = NULL;
|
|
}
|
|
|
|
static void
|
|
gtk_adjustment_init (GtkAdjustment *adjustment)
|
|
{
|
|
adjustment->value = 0.0;
|
|
adjustment->lower = 0.0;
|
|
adjustment->upper = 0.0;
|
|
adjustment->step_increment = 0.0;
|
|
adjustment->page_increment = 0.0;
|
|
adjustment->page_size = 0.0;
|
|
}
|
|
|
|
GtkObject*
|
|
gtk_adjustment_new (gfloat value,
|
|
gfloat lower,
|
|
gfloat upper,
|
|
gfloat step_increment,
|
|
gfloat page_increment,
|
|
gfloat page_size)
|
|
{
|
|
GtkAdjustment *adjustment;
|
|
|
|
adjustment = gtk_type_new (gtk_adjustment_get_type ());
|
|
|
|
adjustment->value = value;
|
|
adjustment->lower = lower;
|
|
adjustment->upper = upper;
|
|
adjustment->step_increment = step_increment;
|
|
adjustment->page_increment = page_increment;
|
|
adjustment->page_size = page_size;
|
|
|
|
return GTK_OBJECT (adjustment);
|
|
}
|