/* -*- 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>


#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);

	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);
}


/* GtkObject methods.  */

static void
impl_destroy (GtkObject *object)
{
	ETaskBar *task_bar;

	task_bar = E_TASK_BAR (object);

	/* Nothing to do here.  */

	(* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
}


static void
class_init (GtkObjectClass *object_class)
{
	parent_class = gtk_type_class (PARENT_TYPE);

	object_class->destroy = impl_destroy;
}

static void
init (ETaskBar *task_bar)
{
	/* Nothing to do here.  */
}


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 = gtk_type_new (e_task_bar_get_type ());
	e_task_bar_construct (task_bar);

	return GTK_WIDGET (task_bar);
}

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);

	box->children = g_list_prepend (box->children, child_info);

	gtk_widget_set_parent (GTK_WIDGET (task_widget), GTK_WIDGET (task_bar));

	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)->children, n)->data;

	return E_TASK_WIDGET (child_info->widget);
}


E_MAKE_TYPE (e_task_bar, "ETaskBar", ETaskBar, class_init, init, PARENT_TYPE)
 class='sub'>FreeBSD GNOME current development ports (https://github.com/freebsd/freebsd-ports-gnome)</td><td class='sub right'></td></tr></table>
<table class='tabs'><tr><td>
<a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/about/?h=gstreamer0.10-removal'>about</a><a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/?h=gstreamer0.10-removal'>summary</a><a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/refs/?h=gstreamer0.10-removal&amp;id=ec4be98dfe6a4a012fe3759266faded784653d3e'>refs</a><a class='active' href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/log/x11-drivers?h=gstreamer0.10-removal'>log</a><a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/tree/x11-drivers?h=gstreamer0.10-removal&amp;id=ec4be98dfe6a4a012fe3759266faded784653d3e'>tree</a><a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/commit/x11-drivers?h=gstreamer0.10-removal&amp;id=ec4be98dfe6a4a012fe3759266faded784653d3e'>commit</a><a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/diff/x11-drivers?h=gstreamer0.10-removal&amp;id=ec4be98dfe6a4a012fe3759266faded784653d3e'>diff</a><a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/stats/x11-drivers?h=gstreamer0.10-removal'>stats</a></td><td class='form'><form class='right' method='get' action='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/log/x11-drivers'>
<input type='hidden' name='h' value='gstreamer0.10-removal'/><input type='hidden' name='id' value='ec4be98dfe6a4a012fe3759266faded784653d3e'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/log/?h=gstreamer0.10-removal&amp;id=ec4be98dfe6a4a012fe3759266faded784653d3e'>root</a>/<a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/log/x11-drivers?h=gstreamer0.10-removal&amp;id=ec4be98dfe6a4a012fe3759266faded784653d3e'>x11-drivers</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th></th><th class='left'>Commit message (<a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/log/x11-drivers?h=gstreamer0.10-removal&amp;id=ec4be98dfe6a4a012fe3759266faded784653d3e&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Age</th><th class='left'>Files</th><th class='left'>Lines</th></tr>
<tr><td class='commitgraph'>* </td><td><a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/commit/x11-drivers?h=gstreamer0.10-removal&amp;id=636e750a3aba3fda4b8ae94aa0161824568942e4'>Update to 0.14.6.</a></td><td>nork</td><td><span title='2006-08-13 09:49:26 +0800'>2006-08-13</span></td><td>3</td><td><span class='deletions'>-41</span>/<span class='insertions'>+50</span></td></tr>
<tr><td class='commitgraph'>* </td><td><a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/commit/x11-drivers?h=gstreamer0.10-removal&amp;id=c3f368f2227e3067ab43299788c65ebaef93f83e'>Add a description of CorePointer, and Cosmetic change.</a></td><td>nork</td><td><span title='2006-03-19 18:22:19 +0800'>2006-03-19</span></td><td>1</td><td><span class='deletions'>-2</span>/<span class='insertions'>+7</span></td></tr>
<tr><td class='commitgraph'>* </td><td><a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/commit/x11-drivers?h=gstreamer0.10-removal&amp;id=7a5e91ab4c0002fd4ba690f5e31e61bc7709d496'>Oops, fix typo.</a></td><td>nork</td><td><span title='2006-03-19 10:03:24 +0800'>2006-03-19</span></td><td>1</td><td><span class='deletions'>-1</span>/<span class='insertions'>+1</span></td></tr>
<tr><td class='commitgraph'>* </td><td><a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/commit/x11-drivers?h=gstreamer0.10-removal&amp;id=21c39d738db9db005fd536c5130b011e7ae4354f'>Fix up some parameters and messages.</a></td><td>nork</td><td><span title='2006-03-19 09:54:37 +0800'>2006-03-19</span></td><td>1</td><td><span class='deletions'>-10</span>/<span class='insertions'>+23</span></td></tr>
<tr><td class='commitgraph'>* </td><td><a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/commit/x11-drivers?h=gstreamer0.10-removal&amp;id=2c68bfc6e4255f7518a11ff6066fa9bf38b5a52b'>o Refrect my environment values.</a></td><td>nork</td><td><span title='2006-03-19 02:44:45 +0800'>2006-03-19</span></td><td>3</td><td><span class='deletions'>-7</span>/<span class='insertions'>+13</span></td></tr>
<tr><td class='commitgraph'>* </td><td><a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/commit/x11-drivers?h=gstreamer0.10-removal&amp;id=365265dd0d6413af99a4722ff8dde2ab90fe468c'>o Rename .o to .so. [1]</a></td><td>nork</td><td><span title='2006-03-19 01:41:22 +0800'>2006-03-19</span></td><td>3</td><td><span class='deletions'>-10</span>/<span class='insertions'>+16</span></td></tr>