/*
 * Remmina - The GTK+ Remote Desktop Client
 * Copyright (C) 2010 Vic Lee 
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * 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.
 */

#include <gtk/gtk.h>
#include <glib/gi18n.h>
#include "remminapublic.h"
#include "remminalog.h"

/***** Define the log window GUI *****/
#define REMMINA_TYPE_LOG_WINDOW               (remmina_log_window_get_type ())
#define REMMINA_LOG_WINDOW(obj)               (G_TYPE_CHECK_INSTANCE_CAST ((obj), REMMINA_TYPE_LOG_WINDOW, RemminaLogWindow))
#define REMMINA_LOG_WINDOW_CLASS(klass)       (G_TYPE_CHECK_CLASS_CAST ((klass), REMMINA_TYPE_LOG_WINDOW, RemminaLogWindowClass))
#define REMMINA_IS_LOG_WINDOW(obj)            (G_TYPE_CHECK_INSTANCE_TYPE ((obj), REMMINA_TYPE_LOG_WINDOW))
#define REMMINA_IS_LOG_WINDOW_CLASS(klass)    (G_TYPE_CHECK_CLASS_TYPE ((klass), REMMINA_TYPE_LOG_WINDOW))
#define REMMINA_LOG_WINDOW_GET_CLASS(obj)     (G_TYPE_INSTANCE_GET_CLASS ((obj), REMMINA_TYPE_LOG_WINDOW, RemminaLogWindowClass))

typedef struct _RemminaLogWindow
{
    GtkWindow window;

    GtkWidget *log_view;
    GtkTextBuffer *log_buffer;
} RemminaLogWindow;

typedef struct _RemminaLogWindowClass
{
    GtkWindowClass parent_class;
} RemminaLogWindowClass;

GType remmina_log_window_get_type (void) G_GNUC_CONST;

G_DEFINE_TYPE (RemminaLogWindow, remmina_log_window, GTK_TYPE_WINDOW)

static void
remmina_log_window_class_init (RemminaLogWindowClass *klass)
{
}

static void
remmina_log_window_init (RemminaLogWindow *logwin)
{
    GtkWidget *scrolledwindow;
    GtkWidget *widget;

    gtk_container_set_border_width (GTK_CONTAINER (logwin), 4);

    scrolledwindow = gtk_scrolled_window_new (NULL, NULL);
    gtk_widget_show (scrolledwindow);
    gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolledwindow),
        GTK_POLICY_NEVER, GTK_POLICY_ALWAYS);
    gtk_container_add (GTK_CONTAINER (logwin), scrolledwindow);

    widget = gtk_text_view_new ();
    gtk_widget_show (widget);
    gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (widget), GTK_WRAP_WORD_CHAR);
    gtk_text_view_set_editable (GTK_TEXT_VIEW (widget), FALSE);
    gtk_container_add (GTK_CONTAINER (scrolledwindow), widget);
    logwin->log_view = widget;
    logwin->log_buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (widget));
}

static GtkWidget*
remmina_log_window_new (void)
{
    return GTK_WIDGET (g_object_new (REMMINA_TYPE_LOG_WINDOW, NULL));
}

/* We will always only have one log window per instance */
static GtkWidget *log_window = NULL;

static void
remmina_log_end (GtkWidget *widget, gpointer data)
{
    log_window = NULL;
}

void
remmina_log_start (void)
{
    if (log_window)
    {
        gtk_window_present (GTK_WINDOW (log_window));
    }
    else
    {
        log_window = remmina_log_window_new ();
        gtk_window_set_default_size (GTK_WINDOW (log_window), 640, 480);
        g_signal_connect (G_OBJECT (log_window), "destroy", G_CALLBACK (remmina_log_end), NULL);
        gtk_widget_show (log_window);
    }
}

gboolean
remmina_log_running (void)
{
    return (log_window != NULL);
}

static gboolean
remmina_log_scroll_to_end (gpointer data)
{
    GtkTextIter iter;

    if (log_window)
    {
        gtk_text_buffer_get_end_iter (REMMINA_LOG_WINDOW (log_window)->log_buffer, &iter);
        gtk_text_view_scroll_to_iter (GTK_TEXT_VIEW (REMMINA_LOG_WINDOW (log_window)->log_view), &iter, 0.0, FALSE, 0.0, 0.0);
    }
    return FALSE;
}

static gboolean
remmina_log_print_real (gpointer data)
{
    GtkTextIter iter;

    if (log_window)
    {
        gtk_text_buffer_get_end_iter (REMMINA_LOG_WINDOW (log_window)->log_buffer, &iter);
        gtk_text_buffer_insert (REMMINA_LOG_WINDOW (log_window)->log_buffer, &iter, (const gchar*)data, -1);
        IDLE_ADD (remmina_log_scroll_to_end, NULL);
    }
    g_free (data);
    return FALSE;
}

void
remmina_log_print (const gchar *text)
{
    if (!log_window) return;

    IDLE_ADD (remmina_log_print_real, g_strdup (text));
}

void
remmina_log_printf (const gchar *fmt, ...)
{
    va_list args;
    gchar *text;

    if (!log_window) return;

    va_start (args, fmt);
    text = g_strdup_vprintf (fmt, args);
    va_end (args);

    IDLE_ADD (remmina_log_print_real, text);
}