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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* E-pane.c: A paned window which accepts more than one child
*
* Author:
* Matt Loper (matt@helixcode.com)
*
* Copyright 2000, Helix Code, Inc
*/
#include "e-paned.h"
#include "e-util.h"
#define PARENT_TYPE gtk_frame_get_type ()
static GtkObjectClass *e_paned_parent_class;
/*----------------------------------------------------------------------*
* (un)parenting functions
*----------------------------------------------------------------------*/
static void
unparent_all_children (EPaned *paned)
{
GList *l;
for (l = paned->children; l != NULL; l = l->next) {
GtkWidget *child = GTK_WIDGET (l->data);
gtk_widget_ref (child);
gtk_container_remove (GTK_CONTAINER (child->parent),
child);
}
if (paned->toplevel_paned) {
GtkWidget* parent =
GTK_WIDGET (paned->toplevel_paned)->parent;
gtk_container_remove (GTK_CONTAINER (parent),
GTK_WIDGET (paned->toplevel_paned));
}
paned->toplevel_paned = NULL;
}
static GtkPaned*
new_gtk_paned (EPaned *paned)
{
return paned->horizontal?
GTK_PANED (gtk_hpaned_new ()):
GTK_PANED (gtk_vpaned_new ());
}
static void
reparent_all_children (EPaned *paned)
{
GtkPaned *cur_gtk_paned;
GList *l = paned->children;
int requested_size;
g_assert (E_IS_PANED (paned));
if (paned->toplevel_paned)
unparent_all_children (paned);
if (!l)
return;
/* if there's only one child in our list, we don't need a
splitter window; we can just show the one window */
if (!l->next)
{
gtk_container_add (GTK_CONTAINER (paned),
GTK_WIDGET (l->data));
return;
}
/* create a gtk_paned, and put it in our toplevel EPaned */
cur_gtk_paned = new_gtk_paned (paned);
paned->toplevel_paned = cur_gtk_paned;
gtk_container_add (GTK_CONTAINER (paned),
GTK_WIDGET (paned->toplevel_paned));
/* put the first widget in the left part of our pane,
and give it the amount of space requested */
gtk_paned_add1 (cur_gtk_paned, GTK_WIDGET (l->data));
requested_size = (int)gtk_object_get_data (
GTK_OBJECT (l->data),
"e_paned_requested_size");
gtk_paned_set_position (GTK_PANED (cur_gtk_paned),
requested_size);
l = l->next;
for (; l != NULL; l = l->next) {
if (l->next) {
GtkPaned *sub_gtk_paned =
new_gtk_paned (paned);
GtkWidget *w = GTK_WIDGET (l->data);
/* add our widget to the new subpane,
on the left */
gtk_paned_add1 (sub_gtk_paned, w);
requested_size = (int)gtk_object_get_data (
GTK_OBJECT (w),
"e_paned_requested_size");
gtk_paned_set_position (GTK_PANED (sub_gtk_paned),
requested_size);
gtk_paned_add2 (cur_gtk_paned,
GTK_WIDGET (sub_gtk_paned));
cur_gtk_paned = sub_gtk_paned;
}
else {
gtk_paned_add2 (cur_gtk_paned,
GTK_WIDGET (l->data));
}
}
}
/*----------------------------------------------------------------------*
* Exposed regular functions
*----------------------------------------------------------------------*/
/**
* e_paned_insert:
* @paned: the #EPaned object
* @pos: the position where we should insert the widget
* @child: the widget to insert in the #EPaned object
* @requested_size: the requested span of the widget, which will be
* width of the #EPaned is horizontal, or height if it's vertical
*
* Inserts a widget into the #EPaned window, given a requested size
* and a position; the position specifies where, among the other
* widgets, the widget should be placed.
*
**/
void
e_paned_insert (EPaned *paned, int pos, GtkWidget *child, int requested_size)
{
g_assert (GTK_IS_WIDGET (child));
g_assert (E_IS_PANED (paned));
unparent_all_children (paned);
paned->children = g_list_insert (paned->children, child, pos);
gtk_object_set_data (GTK_OBJECT (child),
"e_paned_requested_size",
(gpointer)requested_size);
reparent_all_children (paned);
g_print ("%s: %s(): exiting, length is %i\n",
__FILE__, __FUNCTION__, g_list_length (paned->children));
}
/**
* e_paned_remove:
* @paned: the #EPaned object
* @removed_child: the widget to remove
*
* Removes a widget from an #EPaned widget.
*
**/
void
e_paned_remove (EPaned *paned, GtkWidget *removed_child)
{
unparent_all_children (paned);
paned->children = g_list_remove (paned->children, removed_child);
gtk_widget_unref (GTK_WIDGET (removed_child));
reparent_all_children (paned);
}
/*----------------------------------------------------------------------*
* Standard Gtk+ Class functions
*----------------------------------------------------------------------*/
void
e_paned_construct (EPaned *e_paned,
gboolean horizontal)
{
g_return_if_fail (e_paned != NULL);
g_return_if_fail (E_IS_PANED (e_paned));
e_paned->horizontal = horizontal;
}
GtkWidget*
e_paned_new (gboolean horizontal)
{
EPaned *e_paned;
e_paned = gtk_type_new (e_paned_get_type ());
e_paned_construct (e_paned, horizontal);
g_assert (E_IS_PANED (e_paned));
return GTK_WIDGET (e_paned);
}
static void
e_paned_init (GtkObject *object)
{
EPaned *e_paned;
e_paned = E_PANED (object);
e_paned->children = NULL;
e_paned->toplevel_paned = NULL;
e_paned->horizontal = FALSE;
}
static void
e_paned_class_init (GtkObjectClass *object_class)
{
e_paned_parent_class = gtk_type_class (PARENT_TYPE);
}
E_MAKE_TYPE(e_paned, "EPaned", EPaned, e_paned_class_init, e_paned_init, PARENT_TYPE);
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