/*
	Nick Peaden
  Mike Stenburg
  
  Freshman Engineering Design Day Project 2005
  Computer Architecture - Simulator/Emulator
  
  Simulates hardware of an E101SCS chip with a graphicsl interface.
*/

#include "gtk/gtk.h"
#include "gui.h"
#include <stdio.h>

int main(int argc, char *argv[]) {
/*Define Main as MainWindow and Input as InputDialog*/
	MainWindow Main;
	InputDialog Input;
	char mem[4096];
	int reg[16];

	/* Initialize GTK */
	gtk_init(&argc, &argv);
	
	init_main_window(&Main);
	/*g_print("%c\n", argv[1][3]);*/
	/*if (argv[1][3] == '1') put_char_to_out(&Main, "ABCA");*/
	load_file(&mem, argv[1]);
	/*g_print("%h", mem[0]);*/
	
	/* Begin application code */
	gtk_main();

	/* Exit with no error return status with a pause */
	/*system("pause");*/
	return 0;
}

/*HEADER gui.h*/

/*
  E101SCS GUI Definition Source File
*/

#include "gtk/gtk.h"
#include <stdio.h>

/*Structures for MainWindow and DialogWindow*/
typedef struct MAINWINDOW {
	GtkWidget *window;
	GtkWidget *hbox;
	GtkWidget *label;
	GtkWidget *output;
} MainWindow;

typedef struct INPUTDIALOG {
	GtkWidget *dialog;
	GtkWidget *hbox;
	GtkWidget *label;
	GtkWidget *input;
	GtkWidget *enter;
} InputDialog;

/*Function for delete_event, exits program*/
gboolean quit_program(GtkWidget *widget) {
	gtk_main_quit();
	/*Program will STOP execution*/
	return FALSE;
}

/*Function for InputDialog, destroys it*/
void destroy_dialog(GtkWidget *widget) {
	/*gtk_widget_destroy(GTK_WIDGET(widget));*/
	gtk_widget_hide_all(GTK_WIDGET(widget));
}

char get_input_text(GtkWidget *entry) {
	/*char *c;
	*c = (char)* gtk_entry_get_text(GTK_ENTRY(entry));
	g_print("%c\n", *c);*/
}

void init_main_window(MainWindow *main) {	
	/*Create window widget*/
	main->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
	g_signal_connect(GTK_OBJECT(main->window), "delete_event", G_CALLBACK(quit_program), NULL);
	
	/* Set title */
	gtk_window_set_title(GTK_WINDOW(main->window), "E101SCS Sim");
	
	/* Border */
	gtk_container_set_border_width(GTK_CONTAINER(main->window), 10);
	
	/* hbox creation */
	main->hbox = gtk_hbox_new(FALSE, 0);
	
	/* Add box to window */
	gtk_container_add(GTK_CONTAINER(main->window), main->hbox);
	
	/*Create "Output: " label and pack it*/
	main->label = gtk_label_new("Output: ");
	gtk_box_pack_start(GTK_BOX(main->hbox), main->label, FALSE, FALSE, 0);
	
	/*Create EntryBox to output to and make non-user-editable*/
	main->output = gtk_entry_new();
	gtk_entry_set_width_chars(GTK_ENTRY(main->output), 20);
	gtk_editable_set_editable(GTK_EDITABLE(main->output), FALSE);
	gtk_box_pack_end(GTK_BOX(main->hbox), main->output, FALSE, FALSE, 0);
	
	/*Display Widgets*/
	gtk_widget_show_all(main->window);
}

void init_input_dialog(InputDialog *input) {
	/*Create the dialog window, set it modal*/
	input->dialog = gtk_dialog_new();
	gtk_window_set_modal(GTK_WINDOW(input->dialog), TRUE);
	gtk_window_set_title(GTK_WINDOW(input->dialog), "StdIn");
	gtk_dialog_set_has_separator(GTK_DIALOG(input->dialog), FALSE);
	
	/*Create packing box*/
	input->hbox = gtk_hbox_new(FALSE, 5);
	gtk_container_add(GTK_CONTAINER(GTK_DIALOG(input->dialog)->vbox), input->hbox);
	
	/*Make and insert a label into the dialog*/
	input->label = gtk_label_new("Input a Character:");
	gtk_box_pack_start(GTK_BOX(input->hbox), input->label, FALSE, FALSE, 0);
	
	/*Make and insert input box*/
	input->input = gtk_entry_new_with_max_length(1);
	gtk_entry_set_width_chars(GTK_ENTRY(input->input), 5);
	gtk_box_pack_end(GTK_BOX(input->hbox), input->input, FALSE, FALSE, 0);
	
	/*Create enter button and assign the callback*/
	input->enter = gtk_button_new_with_label("Input");
	gtk_button_box_set_layout(GTK_BUTTON_BOX(GTK_DIALOG(input->dialog)->action_area), GTK_BUTTONBOX_SPREAD);
	gtk_box_pack_start(GTK_BOX(GTK_DIALOG(input->dialog)->action_area), input->enter, FALSE, FALSE, 0);
	/*g_signal_connect_swapped(GTK_OBJECT(input->enter), "clicked", G_CALLBACK(get_input_text), input->input);*/
	g_signal_connect_swapped(GTK_OBJECT(input->enter), "clicked", G_CALLBACK(destroy_dialog), input->dialog);
	
	/*Show Dialog*/
	gtk_widget_show_all(input->dialog);
	gtk_dialog_run(GTK_DIALOG(input->dialog));
}

int get_char_from_in(InputDialog *input) {
	int c;
	init_input_dialog(input);
	c = (int)* gtk_entry_get_text(GTK_ENTRY(input->input));
	return c;
}

void put_char_to_out(MainWindow *main, char *data) {
	gtk_entry_append_text(GTK_ENTRY(main->output), data);
}

void load_file(char *mem[], char *file){
	FILE *stream;
	int i=0;
	char c;
	stream = fopen(file, "r");
	while (c != EOF) {
		c = fgetc(stream);
		if (c >= 48 && c <= 57) {
			*mem[i] = c - 48;
		} else if (c >= 65 && c <= 70) {
			*mem[i] = c - 55;
		}
		*mem[i] << 4;
		c = fgetc(stream);
		if (c >= 48 && c <= 57) {
			*mem[i] += c - 48;
		} else if (c >= 65 && c <= 70) {
			*mem[i] += c - 55;
		}
		g_print("%h ", mem[i]);
		i++;
	}
}