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/*
* Cheops Network User Interface
*
* Copyright (C) 1999, Adtran, Inc.
*
* Distributed under the terms of the GNU GPL
*
*/
#include <gtk/gtkmain.h>
#include <gtk/gtksignal.h>
#include <gtk/gtkfixed.h>
#include "gtklink.h"
static GtkWidgetClass *parent_class = NULL;
static void gtk_link_class_init (GtkLinkClass *);
static void gtk_link_init (GtkLink *);
static gint gtk_link_expose (GtkWidget *, GdkEventExpose *event);
guint
gtk_link_get_type ()
{
static guint link_type = 0;
if (!link_type) {
GtkTypeInfo link_info =
{
"Gtklink",
sizeof (GtkLink),
sizeof (GtkLinkClass),
(GtkClassInitFunc) gtk_link_class_init,
(GtkObjectInitFunc) gtk_link_init,
(GtkArgSetFunc) NULL,
(GtkArgGetFunc) NULL,
};
link_type = gtk_type_unique (gtk_widget_get_type (), &link_info);
}
return link_type;
}
static void
gtk_link_class_init (GtkLinkClass *class)
{
GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
object_class = (GtkObjectClass*) class;
widget_class = (GtkWidgetClass*) class;
parent_class = gtk_type_class (gtk_widget_get_type ());
widget_class->expose_event = gtk_link_expose;
}
static void
gtk_link_init (GtkLink *link)
{
GTK_WIDGET_SET_FLAGS(link, GTK_NO_WINDOW);
link->x1 = -1;
link->x2 = -1;
link->y1 = -1;
link->y2 = -1;
link->xos=0;
link->yos=0;
}
GtkWidget*
gtk_link_new (void)
{
GtkLink *link;
link = gtk_type_new (gtk_link_get_type ());
return GTK_WIDGET (link);
}
static gint gtk_link_expose (GtkWidget *widget, GdkEventExpose *event)
{
GtkLink *link;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_LINK (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
link = GTK_LINK(widget);
if ((link->x1 < 0) || (link->x2 < 0) || (link->y1 < 0) || (link->y2 < 0))
return FALSE;
gdk_draw_line (widget->window,
widget->style->fg_gc[widget->state],
link->x1 ,
link->y1 ,
link->x2 ,
link->y2);
return FALSE;
}
void gtk_link_set_coords(GtkLink *link, int x1, int y1, int x2, int y2)
{
int s;
int diff=0;
g_return_if_fail (link != NULL);
g_return_if_fail (GTK_IS_LINK (link));
if (x2 < x1) {
s = x2;
x2=x1;
x1 = s;
s = y2;
y2=y1;
y1 = s;
}
if (x1 >= 0) {
if (link->x1 != x1)
diff++;
link->x1 = x1;
}
if (y1 >= 0) {
if (link->y1 != y1)
diff++;
link->y1 = y1;
}
if (x2 >= 0) {
if (link->x2 != x2)
diff++;
link->x2 = x2;
}
if (y2 >= 0) {
if (link->y2 != y2)
diff++;
link->y2 = y2;
}
if ((x1 < 0) || (x2 < 0) || (y1 < 0) || (y2 < 0)) {
GTK_WIDGET(link)->requisition.width = 0;
GTK_WIDGET(link)->requisition.height = 0;
link->xos=0;
link->yos=0;
} else
if (diff) {
GTK_WIDGET(link)->requisition.width = MAX(x2,x1) - MIN(x1,x2) + 1;
GTK_WIDGET(link)->requisition.height = MAX(y2,y1) - MIN(y2,y1) + 1;
link->xos = MIN(x1,x2);
link->yos = MIN(y1,y2);
gtk_widget_set_uposition(GTK_WIDGET(link), link->xos, link->yos);
}
if (GTK_WIDGET_VISIBLE(link) && diff) {
gtk_widget_queue_resize(GTK_WIDGET(link));
}
}
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