diff options
Diffstat (limited to 'gtk/gtkadjustment.c')
-rw-r--r-- | gtk/gtkadjustment.c | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/gtk/gtkadjustment.c b/gtk/gtkadjustment.c new file mode 100644 index 000000000..ab6e63d21 --- /dev/null +++ b/gtk/gtkadjustment.c @@ -0,0 +1,118 @@ +/* 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); +} |