/* -*-c-*- -------------- mixgtk_fontsel.c :
 * Implementation of the functions declared in mixgtk_fontsel.h
 * ------------------------------------------------------------------
 *  Last change: Time-stamp: "2001-04-28 00:42:21 jao"
 * ------------------------------------------------------------------
 * Copyright (C) 2001 Free Software Foundation, Inc.
 *  
 * 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 <mixlib/mix.h>
#include "mixgtk_widgets.h"
#include "mixgtk_fontsel.h"

static GtkWidget *fontsel_dialog_ = NULL;
static mixgtk_widget_id_t widget_;
static GHashTable *winfo_ = NULL;

typedef struct winfo
{
  GtkWidget *widget;
  GtkStyle *style;
  gchar *font;
} winfo;

static mixgtk_widget_id_t widget_ids_[] = {
  MIXGTK_WIDGET_MIXVM,
  MIXGTK_WIDGET_PROMPT,
  MIXGTK_WIDGET_LOG,
  MIXGTK_WIDGET_MIXAL,
  MIXGTK_WIDGET_rA,
  MIXGTK_WIDGET_rX,
  MIXGTK_WIDGET_rJ,
  MIXGTK_WIDGET_rI1,
  MIXGTK_WIDGET_rI2,
  MIXGTK_WIDGET_rI3,
  MIXGTK_WIDGET_rI4,
  MIXGTK_WIDGET_rI5,
  MIXGTK_WIDGET_rI6,
  MIXGTK_WIDGET_CMP_L,
  MIXGTK_WIDGET_CMP_E,
  MIXGTK_WIDGET_CMP_G,
  MIXGTK_WIDGET_OVER,
  MIXGTK_WIDGET_CELLS,
  MIXGTK_WIDGET_LAPTIME,
  MIXGTK_WIDGET_PROGTIME,
  MIXGTK_WIDGET_UPTIME
};

#define WIDGET_NO_  (sizeof (widget_ids_) / sizeof (widget_ids_[0]))

static winfo infos_[WIDGET_NO_];

void
change_font_ (mixgtk_widget_id_t widget)
{
  widget_ = widget;
  gtk_widget_show (fontsel_dialog_);
}


/* initialise the font selection dialog */
gboolean
mixgtk_fontsel_init (void) 
{
  int i;
  fontsel_dialog_ = mixgtk_widget_factory_get (MIXGTK_WIDGET_FONTSEL_DIALOG);
  g_return_val_if_fail (fontsel_dialog_ != NULL, FALSE);
  winfo_ = g_hash_table_new (NULL, NULL);
  for (i = 0; i < WIDGET_NO_; ++i)
    {
      infos_[i].widget = mixgtk_widget_factory_get (widget_ids_[i]);
      g_return_val_if_fail (infos_[i].widget != NULL, FALSE);
      infos_[i].style = gtk_style_copy
	(gtk_widget_get_style (infos_[i].widget));
      gtk_widget_set_style (infos_[i].widget, infos_[i].style);
      infos_[i].font = NULL;
      g_hash_table_insert (winfo_, GINT_TO_POINTER (widget_ids_[i]),
			   (gpointer)(infos_ + i));
    }
  return TRUE;
}

void
mixgtk_fontsel_set (mixgtk_widget_id_t widget, const gchar *font)
{
  winfo *w = (winfo *)
    g_hash_table_lookup (winfo_, GINT_TO_POINTER (widget));
  if (w != NULL && font != NULL)
    {
      GdkFont *f = gdk_font_load (font);
      if (f != NULL)
	{
	  gdk_font_unref (w->style->font);
	  w->style->font = f;
	  if (w->font != NULL) g_free (w->font);
	  w->font = g_strdup (font);
	  //      gtk_widget_set_style (w, style);
	  gtk_widget_draw (w->widget, FALSE);
	}
    }

  if (widget == MIXGTK_WIDGET_MIXVM)
    {
      int k;
      for (k = MIXGTK_WIDGET_rA; k <= MIXGTK_WIDGET_UPTIME; ++k)
	mixgtk_fontsel_set (k, font);
    }
}

const gchar *
mixgtk_fontsel_get (mixgtk_widget_id_t widget)
{
  const gchar *result = NULL;
  winfo *w = (winfo *)
    g_hash_table_lookup (winfo_, GINT_TO_POINTER (widget));
  if (w != NULL) result = w->font;
  return result;
}

/* callbacks */
void
on_log_font_activate (void)
{
  change_font_ (MIXGTK_WIDGET_LOG);
}

void
on_mixal_font_activate (void)
{
  change_font_ (MIXGTK_WIDGET_MIXAL);
}

void
on_prompt_font_activate (void)
{
  change_font_ (MIXGTK_WIDGET_PROMPT);
}

void
on_mix_font_activate (void) 
{
  change_font_ (MIXGTK_WIDGET_MIXVM);
}


void
on_fontsel_apply_clicked (void)
{
  const gchar * name = gtk_font_selection_dialog_get_font_name
    (GTK_FONT_SELECTION_DIALOG (fontsel_dialog_));
  mixgtk_fontsel_set (widget_, name);
}

void
on_fontsel_ok_clicked (void)
{
  on_fontsel_apply_clicked ();
  gtk_widget_hide (fontsel_dialog_);
}

void
on_fontsel_cancel_clicked (void)
{
  gtk_widget_hide (fontsel_dialog_);
}