/**

 * $Id: gui.c,v 1.8 2005-12-25 05:57:00 nkeynes Exp $

 * 

 * Top-level GUI (GTK2) module.

 *

 * 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 <stdlib.h>

#include <stdarg.h>

#include <gnome.h>

#include <math.h>

#include "dream.h"

#include "dreamcast.h"

#include "mem.h"

#include "sh4/sh4dasm.h"

#include "aica/armdasm.h"

#include "gui/gui.h"

#define REGISTER_FONT "-*-fixed-medium-r-normal--12-*-*-*-*-*-iso8859-1"

GdkColor clrNormal, clrChanged, clrError, clrWarn, clrPC, clrDebug, clrTrace;

PangoFontDescription *fixed_list_font;

debug_info_t main_debug;

void open_file_callback(GtkWidget *btn, gint result, gpointer user_data);

void gtk_gui_init( void );

void gtk_gui_update( void );

void gtk_gui_start( void );

void gtk_gui_stop( void );

uint32_t gtk_gui_run_slice( uint32_t nanosecs );

struct dreamcast_module gtk_gui_module = { "Debugger", gtk_gui_init,

					   gtk_gui_update, gtk_gui_start, 

					   gtk_gui_run_slice, 

					   gtk_gui_stop, 

					   NULL, NULL };

const cpu_desc_t cpu_descs[4] = { &sh4_cpu_desc, &arm_cpu_desc, &armt_cpu_desc, NULL };

void gtk_gui_init() {

    GdkColormap *map;

    GtkWidget *debug_win;

    clrNormal.red = clrNormal.green = clrNormal.blue = 0;

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

    clrChanged.blue = 154*256;

    clrError.red = 65535;

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

    clrPC.red = 32*256;

    clrPC.green = 170*256;

    clrPC.blue = 52*256;

    clrWarn = clrChanged;

    clrTrace.red = 156*256;

    clrTrace.green = 78*256;

    clrTrace.blue = 201*256;

    clrDebug = clrPC;

    map = gdk_colormap_new(gdk_visual_get_best(), TRUE);

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

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

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

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

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

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

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

    fixed_list_font = pango_font_description_from_string("Courier 10");

    debug_win = create_debug_win ();

    main_debug = init_debug_win(debug_win, cpu_descs);

    init_mmr_win();

    gtk_widget_show (debug_win);

}

/**

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

 * and enables the stop button.

 */

void gtk_gui_start( void )

{

    debug_win_set_running( main_debug, TRUE );

}

/**

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

 * and disables the stop button.

 */

void gtk_gui_stop( void )

{

    debug_win_set_running( main_debug, FALSE );

    gtk_gui_update();

}

uint32_t gtk_gui_run_slice( uint32_t nanosecs ) 

{

    while( gtk_events_pending() )

	gtk_main_iteration();

    update_icount(main_debug);

    return nanosecs;

}

void gtk_gui_update(void) {

    update_registers(main_debug);

    update_icount(main_debug);

    update_mmr_win();

    dump_win_update_all();

}

void open_file_callback(GtkWidget *btn, gint result, gpointer user_data) {

    GtkFileChooser *file = GTK_FILE_CHOOSER(user_data);

    if( result == GTK_RESPONSE_ACCEPT ) {

	gchar *filename =gtk_file_chooser_get_filename(

						       GTK_FILE_CHOOSER(file) );

	file_callback_t action = (file_callback_t)gtk_object_get_data( GTK_OBJECT(file), "file_action" );

	gtk_widget_destroy(GTK_WIDGET(file));

	action( filename );

	g_free(filename);

    } else {

	gtk_widget_destroy(GTK_WIDGET(file));

    }

}

static void add_file_pattern( GtkFileChooser *chooser, char *pattern, char *patname )

{

    if( pattern != NULL ) {

	GtkFileFilter *filter = gtk_file_filter_new();

	gtk_file_filter_add_pattern( filter, pattern );

	gtk_file_filter_set_name( filter, patname );

	gtk_file_chooser_add_filter( chooser, filter );

	filter = gtk_file_filter_new();

	gtk_file_filter_set_name( filter, "All files" );

	gtk_file_filter_add_pattern( filter, "*" );

	gtk_file_chooser_add_filter( chooser, filter );

    }

}

void open_file_dialog( char *title, file_callback_t action, char *pattern, char *patname )

{

    GtkWidget *file;

    file = gtk_file_chooser_dialog_new( title, NULL,

					GTK_FILE_CHOOSER_ACTION_OPEN,

					GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,

					GTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT,

					NULL );

    add_file_pattern( GTK_FILE_CHOOSER(file), pattern, patname );

    g_signal_connect( GTK_OBJECT(file), "response", 

		      GTK_SIGNAL_FUNC(open_file_callback), file );

    gtk_object_set_data( GTK_OBJECT(file), "file_action", action );

    gtk_widget_show( file );

}

void save_file_dialog( char *title, file_callback_t action, char *pattern, char *patname )

{

    GtkWidget *file;

    file = gtk_file_chooser_dialog_new( title, NULL,

					GTK_FILE_CHOOSER_ACTION_SAVE,

					GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,

					GTK_STOCK_SAVE, GTK_RESPONSE_ACCEPT,

					NULL );

    add_file_pattern( GTK_FILE_CHOOSER(file), pattern, patname );

    g_signal_connect( GTK_OBJECT(file), "response", 

		      GTK_SIGNAL_FUNC(open_file_callback), file );

    gtk_object_set_data( GTK_OBJECT(file), "file_action", action );

    gtk_widget_show( file );

}

uint32_t gtk_entry_get_hex_value( GtkEntry *entry, uint32_t defaultValue )

{

    gchar *text = gtk_entry_get_text(entry);

    if( text == NULL )

        return defaultValue;

    gchar *endptr;

    uint32_t value = strtoul( text, &endptr, 16 );

    if( text == endptr ) { /* invalid input */

        value = defaultValue;

        gtk_entry_set_hex_value( entry, value );

    }

    return value;

}

void gtk_entry_set_hex_value( GtkEntry *entry, uint32_t value )

{

    char buf[10];

    sprintf( buf, "%08X", value );

    gtk_entry_set_text( entry, buf );

}