/**

 * $Id: gtkui.c,v 1.2 2007-10-11 08:22:03 nkeynes Exp $

 *

 * Core GTK-based user interface

 *

 * Copyright (c) 2005 Nathan Keynes.

 *

 * 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.

 */

#include <sys/time.h>

#include <time.h>

#include "dream.h"

#include "dreamcast.h"

#include "gui/gtkui.h"

void gtk_gui_update( void );

void gtk_gui_start( void );

void gtk_gui_stop( void );

void gtk_gui_alloc_resources ( void );

uint32_t gtk_gui_run_slice( uint32_t nanosecs );

struct dreamcast_module gtk_gui_module = { "gui", NULL,

					   gtk_gui_update, 

					   gtk_gui_start, 

					   gtk_gui_run_slice, 

					   gtk_gui_stop, 

					   NULL, NULL };

/**

 * Single-instance windows (at most one)

 */

static main_window_t main_win = NULL;

static debug_window_t debug_win = NULL;

static mmio_window_t mmio_win = NULL;

/**

 * Count of running nanoseconds - used to cut back on the GUI runtime

 */

static uint32_t gtk_gui_nanos = 0;

static struct timeval gtk_gui_lasttv;

gboolean gui_parse_cmdline( int *argc, char **argv[] )

{

    return gtk_init_check( argc, argv );

}

gboolean gui_init( gboolean withDebug )

{

    dreamcast_register_module( &gtk_gui_module );

    gtk_gui_alloc_resources();

    if( withDebug ) {

	debug_win = debug_window_new();

    }

    main_win = main_window_new( APP_NAME " " APP_VERSION );

    return TRUE;

}

void gui_main_loop(void)

{

    gtk_main();

}

void gui_update_io_activity( io_activity_type io, gboolean active )

{

}

void gtk_gui_show_debugger()

{

    if( debug_win ) {

	debug_window_show(debug_win, TRUE);

    } else {

	debug_win = debug_window_new();

    }

}    

GtkWidget *gtk_gui_get_renderarea()

{

    return main_window_get_renderarea(main_win);

}

/**

 * Hook called when DC starts running. Just disables the run/step buttons

 * and enables the stop button.

 */

void gtk_gui_start( void )

{

    main_window_set_running( main_win, TRUE );

    if( debug_win != NULL ) {

	debug_window_set_running( debug_win, TRUE );

    }

    gtk_gui_nanos = 0;

    gettimeofday(&gtk_gui_lasttv,NULL);

}

/**

 * Hook called when DC stops running. Enables the run/step buttons

 * and disables the stop button.

 */

void gtk_gui_stop( void )

{

    main_window_set_running( main_win, FALSE );

    gtk_gui_update();

}

void gtk_gui_update( void )

{

    if( debug_win ) {

	debug_window_set_running( debug_win, FALSE );

	debug_window_update(debug_win);

    }

    if( mmio_win ) {

	mmio_win_update(mmio_win);

    }

    dump_win_update_all();

}

/**

 * Module run-slice. Because UI processing is fairly expensive, only 

 * run the processing about 10 times a second while we're emulating.

 */

uint32_t gtk_gui_run_slice( uint32_t nanosecs ) 

{

    gtk_gui_nanos += nanosecs;

    if( gtk_gui_nanos > 100000000 ) { 

	struct timeval tv;

	while( gtk_events_pending() )

	    gtk_main_iteration();

	gettimeofday(&tv,NULL);

	double ns = ((tv.tv_sec - gtk_gui_lasttv.tv_sec) * 1000000000.0) +

	    ((tv.tv_usec - gtk_gui_lasttv.tv_usec)*1000.0);

	double speed = (float)( (double)gtk_gui_nanos * 100.0 / ns );

	gtk_gui_lasttv.tv_sec = tv.tv_sec;

	gtk_gui_lasttv.tv_usec = tv.tv_usec;

	main_window_set_speed( main_win, speed );

	gtk_gui_nanos = 0;

    }

    return nanosecs;

}

PangoFontDescription *gui_fixed_font;

GdkColor gui_colour_normal, gui_colour_changed, gui_colour_error;

GdkColor gui_colour_warn, gui_colour_pc, gui_colour_debug;

GdkColor gui_colour_trace, gui_colour_break, gui_colour_temp_break;

GdkColor gui_colour_white;

void gtk_gui_alloc_resources() {

    GdkColormap *map;

    gui_colour_normal.red = gui_colour_normal.green = gui_colour_normal.blue = 0;

    gui_colour_changed.red = gui_colour_changed.green = 64*256;

    gui_colour_changed.blue = 154*256;

    gui_colour_error.red = 65535;

    gui_colour_error.green = gui_colour_error.blue = 64*256;

    gui_colour_pc.red = 32*256;

    gui_colour_pc.green = 170*256;

    gui_colour_pc.blue = 52*256;

    gui_colour_warn = gui_colour_changed;

    gui_colour_trace.red = 156*256;

    gui_colour_trace.green = 78*256;

    gui_colour_trace.blue = 201*256;

    gui_colour_debug = gui_colour_pc;

    gui_colour_break.red = 65535;

    gui_colour_break.green = gui_colour_break.blue = 192*256;

    gui_colour_temp_break.red = gui_colour_temp_break.green = 128*256;

    gui_colour_temp_break.blue = 32*256;

    gui_colour_white.red = gui_colour_white.green = gui_colour_white.blue = 65535;

    map = gdk_colormap_new(gdk_visual_get_best(), TRUE);

    gdk_colormap_alloc_color(map, &gui_colour_normal, TRUE, TRUE);

    gdk_colormap_alloc_color(map, &gui_colour_changed, TRUE, TRUE);

    gdk_colormap_alloc_color(map, &gui_colour_error, TRUE, TRUE);

    gdk_colormap_alloc_color(map, &gui_colour_warn, TRUE, TRUE);

    gdk_colormap_alloc_color(map, &gui_colour_pc, TRUE, TRUE);

    gdk_colormap_alloc_color(map, &gui_colour_debug, TRUE, TRUE);

    gdk_colormap_alloc_color(map, &gui_colour_trace, TRUE, TRUE);

    gdk_colormap_alloc_color(map, &gui_colour_break, TRUE, TRUE);

    gdk_colormap_alloc_color(map, &gui_colour_temp_break, TRUE, TRUE);

    gdk_colormap_alloc_color(map, &gui_colour_white, TRUE, TRUE);

    gui_fixed_font = pango_font_description_from_string("Courier 10");

}