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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* e-printable.c: an object printer.
*
* Author:
* Christopher James Lahey <clahey@helixcode.com>
*
* (C) 2000 Helix Code, Inc.
*/
#include <config.h>
#include <gtk/gtksignal.h>
#include "e-util.h"
#include "e-printable.h"
#define EP_CLASS(e) ((EPrintableClass *)((GtkObject *)e)->klass)
#define PARENT_TYPE gtk_object_get_type ()
static GtkObjectClass *e_printable_parent_class;
enum {
PRINT_PAGE,
DATA_LEFT,
RESET,
HEIGHT,
LAST_SIGNAL
};
static guint e_printable_signals [LAST_SIGNAL] = { 0, };
static void
e_printable_class_init (GtkObjectClass *object_class)
{
EPrintableClass *klass = E_PRINTABLE_CLASS(object_class);
e_printable_parent_class = gtk_type_class (PARENT_TYPE);
e_printable_signals [PRINT_PAGE] =
gtk_signal_new ("print_page",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (EPrintableClass, print_page),
e_marshal_NONE__OBJECT_DOUBLE_DOUBLE_BOOL,
GTK_TYPE_NONE, 4, GTK_TYPE_OBJECT, GTK_TYPE_DOUBLE, GTK_TYPE_DOUBLE, GTK_TYPE_BOOL);
e_printable_signals [DATA_LEFT] =
gtk_signal_new ("data_left",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (EPrintableClass, data_left),
gtk_marshal_BOOL__NONE,
GTK_TYPE_BOOL, 0, GTK_TYPE_NONE);
e_printable_signals [RESET] =
gtk_signal_new ("reset",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (EPrintableClass, reset),
gtk_marshal_NONE__NONE,
GTK_TYPE_NONE, 0, GTK_TYPE_NONE);
e_printable_signals [HEIGHT] =
gtk_signal_new ("height",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (EPrintableClass, height),
e_marshal_DOUBLE__OBJECT_DOUBLE_DOUBLE,
GTK_TYPE_DOUBLE, 3, GTK_TYPE_OBJECT, GTK_TYPE_DOUBLE, GTK_TYPE_DOUBLE);
gtk_object_class_add_signals (object_class, e_printable_signals, LAST_SIGNAL);
klass->print_page = NULL;
klass->data_left = NULL;
klass->reset = NULL;
klass->height = NULL;
}
guint
e_printable_get_type (void)
{
static guint type = 0;
if (!type)
{
GtkTypeInfo info =
{
"EPrintable",
sizeof (EPrintable),
sizeof (EPrintableClass),
(GtkClassInitFunc) e_printable_class_init,
NULL,
/* reserved_1 */ NULL,
/* reserved_2 */ NULL,
(GtkClassInitFunc) NULL,
};
type = gtk_type_unique (gtk_object_get_type (), &info);
}
return type;
}
EPrintable *
e_printable_new(void)
{
return E_PRINTABLE(gtk_type_new(e_printable_get_type()));
}
void
e_printable_print_page (EPrintable *e_printable,
GnomePrintContext *context,
gdouble width,
gdouble height,
gboolean quantized)
{
g_return_if_fail (e_printable != NULL);
g_return_if_fail (E_IS_PRINTABLE (e_printable));
gtk_signal_emit (GTK_OBJECT (e_printable),
e_printable_signals [PRINT_PAGE],
context,
width,
height,
quantized);
}
gboolean
e_printable_data_left (EPrintable *e_printable)
{
gboolean ret_val;
g_return_val_if_fail (e_printable != NULL, FALSE);
g_return_val_if_fail (E_IS_PRINTABLE (e_printable), FALSE);
gtk_signal_emit (GTK_OBJECT (e_printable),
e_printable_signals [DATA_LEFT],
&ret_val);
return ret_val;
}
void
e_printable_reset (EPrintable *e_printable)
{
g_return_if_fail (e_printable != NULL);
g_return_if_fail (E_IS_PRINTABLE (e_printable));
gtk_signal_emit (GTK_OBJECT (e_printable),
e_printable_signals [RESET]);
}
gdouble
e_printable_height (EPrintable *e_printable,
GnomePrintContext *context,
gdouble width,
gdouble max_height)
{
gdouble ret_val;
g_return_val_if_fail (e_printable != NULL, -1);
g_return_val_if_fail (E_IS_PRINTABLE (e_printable), -1);
gtk_signal_emit (GTK_OBJECT (e_printable),
e_printable_signals [HEIGHT],
context,
width,
max_height,
&ret_val);
return ret_val;
}
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