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/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/* e-task-bar.c
*
* Copyright (C) 2001 Ximian, Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of version 2 of the GNU General Public
* License as published by the Free Software Foundation.
*
* This program 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
* Author: Ettore Perazzoli <ettore@ximian.com>
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "e-task-bar.h"
#include <gal/util/e-util.h>
#include <gtk/gtklabel.h>
struct _ETaskBarPrivate
{
GtkLabel *message_label;
GtkHBox *hbox;
};
#define PARENT_TYPE gtk_hbox_get_type ()
static GtkHBoxClass *parent_class = NULL;
/* WARNING: Ugly hack starts here. */
#define MAX_ACTIVITIES_PER_COMPONENT 2
static void
reduce_displayed_activities_per_component (ETaskBar *task_bar)
{
GHashTable *component_ids_hash;
GtkBox *box;
GList *p;
component_ids_hash = g_hash_table_new (g_str_hash, g_str_equal);
box = GTK_BOX (task_bar->priv->hbox);
for (p = box->children; p != NULL; p = p->next) {
GtkBoxChild *child;
const char *component_id;
void *hash_item;
child = (GtkBoxChild *) p->data;
component_id = e_task_widget_get_component_id (E_TASK_WIDGET (child->widget));
hash_item = g_hash_table_lookup (component_ids_hash, component_id);
if (hash_item == NULL) {
gtk_widget_show (child->widget);
g_hash_table_insert (component_ids_hash, (void *) component_id, GINT_TO_POINTER (1));
} else {
int num_items;
num_items = GPOINTER_TO_INT (hash_item);
g_assert (num_items <= MAX_ACTIVITIES_PER_COMPONENT);
if (num_items == MAX_ACTIVITIES_PER_COMPONENT) {
gtk_widget_hide (child->widget);
} else {
num_items ++;
gtk_widget_show (child->widget);
g_hash_table_insert (component_ids_hash, (void *) component_id, GINT_TO_POINTER (num_items));
}
}
}
g_hash_table_destroy (component_ids_hash);
}
static void
class_init (GtkObjectClass *object_class)
{
parent_class = g_type_class_ref(PARENT_TYPE);
}
static void
init (ETaskBar *task_bar)
{
GtkWidget *label, *hbox;
task_bar->priv = g_new (ETaskBarPrivate, 1);
gtk_box_set_spacing (GTK_BOX (task_bar), 10);
label = gtk_label_new ("");
gtk_widget_show (label);
gtk_box_pack_start (GTK_BOX (task_bar), label, FALSE, TRUE, 0);
gtk_misc_set_alignment (GTK_MISC (label), 0, 0.5);
task_bar->priv->message_label = GTK_LABEL (label);
hbox = gtk_hbox_new (0, FALSE);
gtk_widget_show (hbox);
gtk_container_add (GTK_CONTAINER (task_bar), hbox);
task_bar->priv->hbox = GTK_HBOX (hbox);
}
void
e_task_bar_construct (ETaskBar *task_bar)
{
g_return_if_fail (task_bar != NULL);
g_return_if_fail (E_IS_TASK_BAR (task_bar));
/* Nothing to do here. */
}
GtkWidget *
e_task_bar_new (void)
{
ETaskBar *task_bar;
task_bar = g_object_new (e_task_bar_get_type (), NULL);
e_task_bar_construct (task_bar);
return GTK_WIDGET (task_bar);
}
void
e_task_bar_set_message (ETaskBar *task_bar,
const char *message)
{
if (message) {
gtk_widget_show (GTK_WIDGET (task_bar->priv->message_label));
gtk_label_set_text (task_bar->priv->message_label, message);
} else {
e_task_bar_unset_message (task_bar);
}
}
void
e_task_bar_unset_message (ETaskBar *task_bar)
{
gtk_widget_hide (GTK_WIDGET (task_bar->priv->message_label));
}
void
e_task_bar_prepend_task (ETaskBar *task_bar,
ETaskWidget *task_widget)
{
GtkBoxChild *child_info;
GtkBox *box;
g_return_if_fail (task_bar != NULL);
g_return_if_fail (E_IS_TASK_BAR (task_bar));
g_return_if_fail (task_widget != NULL);
g_return_if_fail (E_IS_TASK_WIDGET (task_widget));
/* Hah hah. GTK+ sucks. This is adapted from `gtkhbox.c'. */
child_info = g_new (GtkBoxChild, 1);
child_info->widget = GTK_WIDGET (task_widget);
child_info->padding = 0;
child_info->expand = TRUE;
child_info->fill = TRUE;
child_info->pack = GTK_PACK_START;
box = GTK_BOX (task_bar->priv->hbox);
box->children = g_list_prepend (box->children, child_info);
gtk_widget_set_parent (GTK_WIDGET (task_widget), GTK_WIDGET (task_bar->priv->hbox));
if (GTK_WIDGET_REALIZED (task_bar))
gtk_widget_realize (GTK_WIDGET (task_widget));
if (GTK_WIDGET_VISIBLE (task_bar) && GTK_WIDGET_VISIBLE (task_widget)) {
if (GTK_WIDGET_MAPPED (task_bar))
gtk_widget_map (GTK_WIDGET (task_widget));
gtk_widget_queue_resize (GTK_WIDGET (task_widget));
}
reduce_displayed_activities_per_component (task_bar);
}
void
e_task_bar_remove_task (ETaskBar *task_bar,
int n)
{
ETaskWidget *task_widget;
g_return_if_fail (task_bar != NULL);
g_return_if_fail (E_IS_TASK_BAR (task_bar));
g_return_if_fail (n >= 0);
task_widget = e_task_bar_get_task_widget (task_bar, n);
gtk_widget_destroy (GTK_WIDGET (task_widget));
reduce_displayed_activities_per_component (task_bar);
}
ETaskWidget *
e_task_bar_get_task_widget (ETaskBar *task_bar,
int n)
{
GtkBoxChild *child_info;
g_return_val_if_fail (task_bar != NULL, NULL);
g_return_val_if_fail (E_IS_TASK_BAR (task_bar), NULL);
child_info = (GtkBoxChild *) g_list_nth (GTK_BOX (task_bar->priv->hbox)->children, n)->data;
return E_TASK_WIDGET (child_info->widget);
}
E_MAKE_TYPE (e_task_bar, "ETaskBar", ETaskBar, class_init, init, PARENT_TYPE)
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