/* File: main-acn.c */

/* Purpose: Support for Acorn RISC OS Angband */

/*
 * Author: Kevin Bracey (kbracey@art.acorn.co.uk)
 *
 */

/* Check compiler flag */
#ifdef __riscos

/*
 * === Instructions for compiling Angband for RISC OS ===
 *
 * You will require:
 *   Acorn C/C++ (some other compiler may be suitable but you may
 *                need to make changes to the make file)
 *   OSLib 5.1 or later (available from ftp.acorn.co.uk)
 *   The RISC OS Angband binary distribution (for Resource files etc).
 *
 * Full compilation instructions are provided with the binary distribution,
 * along with a useful little utility to process the source tree into
 * RISC OS form, and bug fixes for OSLib.
 *
 */

#define VERSION "2.7.9v6 (07-May-96)"

/* Hack to prevent types clash from OSLib */
typedef unsigned int bits;
#define NONE 0u
#define UNKNOWN 1
#define types_H

#include "angband.h"

#include <signal.h>
#include "kernel.h"

#include "osbyte.h"
#include "osword.h"
#include "buffer.h"
#include "colourtrans.h"
#include "osargs.h"
#include "osfind.h"
#include "osfile.h"
#include "osgbpb.h"
#include "osfscontrol.h"

#include "wimpspriteop.h"

#include "menu.h"
#include "saveas.h"
#include "quit.h"
#include "proginfo.h"
#include "actionbutton.h"

/* Header for eventlib (using OSLib types) */
typedef int event_wimp_handler(wimp_event_no event_code,
                               wimp_block *event, toolbox_block *id,
                               void *handle);

typedef int event_toolbox_handler(bits event_code,
                                  toolbox_action *event, toolbox_block *id,
                                  void *handle);

typedef int event_message_handler(wimp_message *message,
                                  void *handle);

extern os_error *event_poll(wimp_event_no *event_code, wimp_block *poll_block,
                            void *poll_word);

extern os_error *event_set_mask(wimp_poll_flags mask);
extern os_error *event_get_mask(wimp_poll_flags *mask);

extern os_error *event_register_wimp_handler(toolbox_o object_id,
                                             wimp_event_no event_code, event_wimp_handler *handler, void *handle);

extern os_error *event_register_toolbox_handler(toolbox_o object_id,
                                                wimp_event_no event_code, event_toolbox_handler *handler, void *handle);

extern os_error *event_register_message_handler(bits msg_no,
                                                event_message_handler *handler, void *handle);

extern os_error *event_deregister_toolbox_handler(toolbox_o object_id,
                                                  wimp_event_no event_code, event_toolbox_handler *handler, void *handle);

extern os_error *event_deregister_message_handler(bits msg_no,
                                                  event_message_handler *handler, void *handle);

extern os_error *event_initialise(toolbox_block *id_block);


/* Structure to store all info about a window */
typedef struct
{
	term t;
	toolbox_o window;
	wimp_w wimp;
	char olddisp[24][80];
	char oldcol[24][80];
	byte froshed[24];
	int curs_vis;
	int curs_x, curs_y;
	int ocx, ocy;
	os_box changed;
} term_data;

/* Files opened using open(2) - make sure they're closed on exit */
static int filehandle[16];
static int openfiles;

static int wimpver;

/* XXX Not ready yet */
/*static int file_dragged;*/

/*
 * Hack -- correct spelling
 */
#define colour_table color_table

/*
 * Hack -- game in progress
 */
static int initialised;

/*
 * Hack -- game in progress
 */
static int game_in_progress;

/*
 * Hack -- give saved game files the correct type
 */
#define osfile_TYPE_ANGBAND 0x118u
static bits _ftype;

/* Un-hack remove etc (which have been redirected here for name translation) */
#undef remove
#undef rename

/* Colour of cursor (displayed as a box) */
#define TERM_CURSOR 255

/* This is the palette as defined in term.h, with gamma
correction of 1.3 (it seems to look OK) */
static const os_PALETTE(16) default_palette =
{
	{
		0x00000000,   /* TERM_DARK */
		0xffffff00,   /* TERM_WHITE */
		0x9d9d9d00,   /* TERM_SLATE */
		0x008dff00,   /* TERM_ORANGE */
		0x0000b700,   /* TERM_RED */
		0x449d0000,   /* TERM_GREEN */
#ifndef READABILITY_BLUE
		0xff000000,   /* TERM_BLUE */
#else
		0xff330000,   /* TERM_BLUE */
#endif
		0x0066d800,   /* TERM_UMBER */
#ifndef DISTINCT_DARK
		0x74747400,   /* TERM_L_DARK */
#else
		//0x58585800,   /* TERM_L_DARK */
		0x66666600,   /* TERM_L_DARK */
#endif
		0xcccccc00,   /* TERM_L_WHITE */
		0xff00af00,   /* TERM_VIOLET */
		0x00ffff00,   /* TERM_YELLOW */
		0x3030ff00,   /* TERM_L_RED */
		0x00ff0000,   /* TERM_L_GREEN */
		0xffff0000,   /* TERM_L_BLUE */
		0x559dc700,   /* TERM_L_UMBER */
	}
};

static os_PALETTE(256) palette;

static int coltable[256];
static int solid_colours;
static unsigned ncolours;

/* Toolbox events */
#define action_Quit 1
#define action_Iconbar 2
#define action_Save 3
#define action_New 4
#define action_OpenRecall 5
#define action_OpenChoice 6
#define action_OpenAngband 7
#define action_DefaultCols 8
#define action_SaveChoices 9
#define action_OpenMirror 10

/* Menu entries */
/* Game menu */
#define menu_New ((toolbox_c) 0)
#define menu_Save ((toolbox_c) 1)

/* Colours menu */
#define menu_Dithered ((toolbox_c) 0x100)

/* Windows menu */
#define menu_Angband ((toolbox_c) 0)
#define menu_Recall ((toolbox_c) 2)
#define menu_Choice ((toolbox_c) 3)
#define menu_Mirror ((toolbox_c) 4)

/* Missing from OSLib */
#define event_ANY ((toolbox_o) -1)

/* Are we shutting down the desktop? */
static wimp_t shutting_down;

/* Do we have the caret? */
static int have_caret;
static int have_caret_entity;

/* Flag set by handlers to indicate a keypress */
static int key_pressed;
static int escape_pressed;

static messagetrans_control_block mfd;
static toolbox_block id_block;

static term_data recall;
static term_data choice;
static term_data screen;
static term_data mirror;

/* Forward references */
static int palette_handler(wimp_message *message, void *handle);
static void update_window(term_data *t, int x0, int y0, int x1, int y1);
static void refresh_windows(void);
static errr init_acn(void);
static const char *translate_name(const char *path);
static void savechoices(void);
static void refresh_window(term_data *t);



/*************************************************************
 *                                                           *
 *              Error reporting (lots of it!)                *
 *                                                           *
 *************************************************************/

/*
 * Hook to tell the user something important
 */
static void plog_hook(cptr str)
{
	os_error e;

	e.errnum=1;
	strcpy(e.errmess, str);
	wimp_report_error_by_category(&e,
	                              wimp_ERROR_BOX_OK_ICON |
	                              wimp_ERROR_BOX_CATEGORY_INFO << wimp_ERROR_BOX_CATEGORY_SHIFT,
	                              "Angband", "!angband", wimpspriteop_AREA, 0);
}

/*
 * Hook to tell the user something, and then quit
 */
static void quit_hook(cptr str)
{
	/* Warning if needed */
	if (str)
	{
		os_error e;

		e.errnum=1;
		strcpy(e.errmess, str);
		if (wimpver >= 322)
			wimp_report_error_by_category(&e,
		                              wimp_ERROR_BOX_CATEGORY_ERROR << wimp_ERROR_BOX_CATEGORY_SHIFT,
		                              "Angband", "!angband", wimpspriteop_AREA, "Quit");
		else
			wimp_report_error(&e, wimp_ERROR_BOX_CANCEL_ICON, "Angband");
	}

	/* Oh yeah, close the high score list */
	/*nuke_scorefile();*/

	/* All done */
	if (str) exit(-1);
	exit(0);
}

/*
 * Hook to tell the user something, and then crash
 */
static void core_hook(cptr str)
{
	wimp_error_box_selection sel;
	os_error e;
	const static char *apology="Sorry, Angband has suffered an internal error and "
	"must close down immediately. I will attempt to save "
	"your game.";

	e.errnum=1;

	if (wimpver >= 322)
	{
		e.errnum=1;
		strcpy(e.errmess, apology);
		sel=wimp_report_error_by_category(&e,
		                                  wimp_ERROR_BOX_CATEGORY_PROGRAM << wimp_ERROR_BOX_CATEGORY_SHIFT,
		                                  "Angband", "!angband", wimpspriteop_AREA, str?"Quit,Describe":"Quit");
		if (sel==4) /* User pressed Describe */
		{
			e.errnum=1;
			strcpy(e.errmess, str);

			wimp_report_error_by_category(&e,
			                              wimp_ERROR_BOX_CATEGORY_PROGRAM << wimp_ERROR_BOX_CATEGORY_SHIFT,
			                              "Angband", "!angband", wimpspriteop_AREA, "Quit");
		}
	}
	else
	{
		e.errnum=1;
		strcpy(e.errmess, str);
		wimp_report_error(&e, wimp_ERROR_BOX_CANCEL_ICON, "Angband");
	}

	if (game_in_progress && character_generated)
		save_player();

	/* Just quit */
	quit(NULL);
}

static void oserror_handler(int sig)
{
	core(_kernel_last_oserror()->errmess);
}

static int error_handler(bits event_code, toolbox_action *event,
                         toolbox_block *id, void *handle)
{
	wimp_report_error_by_category((os_error *) &event->data.error,
	                              wimp_ERROR_BOX_OK_ICON |
	                              wimp_ERROR_BOX_CATEGORY_ERROR << wimp_ERROR_BOX_CATEGORY_SHIFT,
	                              "Angband",
	                              "!angband",
	                              wimpspriteop_AREA,
	                              0);

	return 1;
}

/*************************************************************
 *                                                           *
 *             Miscellaneous support functions               *
 *                                                           *
 *************************************************************/


static void window_to_front(wimp_w w)
{
	union
	{
		wimp_open           open;
		wimp_window_state   state;
	} a;

	a.state.w=w;
	wimp_get_window_state(&a.state);
	a.open.next=wimp_TOP;
	wimp_open_window(&a.open);
}

static void window_hide(wimp_w w)
{
	union
	{
		wimp_open           open;
		wimp_window_state   state;
	} a;

	a.state.w=w;
	wimp_get_window_state(&a.state);
	a.open.next=wimp_HIDDEN;
	wimp_open_window(&a.open);
}

static void grabcaret(void)
{
	wimp_set_caret_position(screen.wimp, wimp_ICON_WINDOW, 0, 0, (1<<25), 0);
}

/*
 * This general-purpose routine will work for objects of class Window, DCS,
 * FileInfo, FontDbox, PrintDbox, ProgInfo, Quit, SaveAs, Scale, and indeed
 * any other object that supports Toolbox_MiscOp 0 as XXX_GetWindowId, and
 * for which Toolbox_ShowObject_FullSpec takes the same block as the Window
 * class.
 */

static void ShowCentred(toolbox_show_flags flags, toolbox_o obj,
                        toolbox_o parent_obj, toolbox_c parent_cmp)
{
	wimp_window_state state;
	int width, height, scrwidth, scrheight, xeig, yeig;
	toolbox_o window;
	toolbox_class objclass;
	toolbox_position pos;

	objclass=toolbox_get_object_class(NONE, obj);
	if (objclass==class_WINDOW)
		window=obj;
	else
		window=quit_get_window_id(NONE, obj);

	state.w=window_get_wimp_handle(NONE, window);

	wimp_get_window_state(&state);

	width=state.visible.x1-state.visible.x0;
	height=state.visible.y1-state.visible.y0;

	os_read_mode_variable(os_CURRENT_MODE, os_MODEVAR_XWIND_LIMIT, &scrwidth);
	os_read_mode_variable(os_CURRENT_MODE, os_MODEVAR_YWIND_LIMIT, &scrheight);
	os_read_mode_variable(os_CURRENT_MODE, os_MODEVAR_XEIG_FACTOR, &xeig);
	os_read_mode_variable(os_CURRENT_MODE, os_MODEVAR_YEIG_FACTOR, &yeig);

	scrwidth+=1; scrheight+=1;
	scrwidth<<=xeig; scrheight<<=yeig;

	pos.top_left.x=(scrwidth-width)/2;
	pos.top_left.y=(scrheight+height)/2;

	toolbox_show_object(flags, obj, toolbox_POSITION_TOP_LEFT, &pos,
	                    parent_obj, parent_cmp);
}

/*************************************************************
 *                                                           *
 *              Interfaces to the Term package               *
 *                                                           *
 *************************************************************/
static errr Term_xtra_acn_check(void)
{
	static os_t last_poll;
	int buf, bufhi;
	os_t t;
	wimp_poll_flags mask;

	/*
	 * We only do an event_poll when a character is in the keyboard
	 * buffer, or every 0.1 seconds. This speeds up running.
	 */

	os_byte(osbyte_BUFFER_OP, 255 - buffer_KEYBOARD, 0, &buf, &bufhi);

	buf=(buf & 0xFF) + (bufhi << 8);

	if (buf > 0 && have_caret || (t=os_read_monotonic_time())-last_poll >= 10)
	{
		/* If buf > 0, probably didn't set t in the line above */
		if (buf > 0)
			t=os_read_monotonic_time();
		last_poll=t;
		event_get_mask(&mask);
		event_set_mask(mask &~ wimp_MASK_NULL);
		event_poll(0, 0, 0);
		event_set_mask(mask);
	}

	/* This is necessary to let the user interrupt the borg */
	if (key_pressed)
	{
		key_pressed=0;
		return 0;
	}

	return 1;
}

static errr Term_xtra_acn_event(void)
{
	while (!key_pressed)
		if (event_poll(0, 0, 0))
			return -1;

	key_pressed=0;

	return 0;
}

/*
 * React to changes
 */
static errr Term_xtra_acn_react(void)
{
	int i;
	os_colour temp;

	/* Check colours */

	/* Grab "colour_table" */
	for (i = 0; i < 256; i++)
	{
		/* Extract the R,G,B data */
		temp = (colour_table[i][3] << 24) |
		(colour_table[i][2] << 16) |
		(colour_table[i][1] << 8);

		if (temp != palette.entries[i])
		{
			/* Need to force refresh of all characters of that colour(!) */

			if (i!=0)
			{
				int x, y;
				for (y=0; y<24; y++)
					for (x=0; x<80; x++)
				{
					if (screen.t.old->a[y][x] == i)
						screen.oldcol[y][x]=0;
					if (recall.t.old->a[y][x] == i)
						recall.oldcol[y][x]=0;
					if (choice.t.old->a[y][x] == i)
						choice.oldcol[y][x]=0;
					if (mirror.t.old->a[y][x] == i)
						mirror.oldcol[y][x]=0;
				}
			}
			else
			{
				memset(screen.olddisp, 0, sizeof screen.olddisp);
				memset(recall.olddisp, 0, sizeof recall.olddisp);
				memset(choice.olddisp, 0, sizeof choice.olddisp);
				memset(mirror.olddisp, 0, sizeof mirror.olddisp);
			}

			palette.entries[i]=temp;
		}
	}

	palette_handler(0, 0);

	update_window(&screen, 0, 0, 80, 24);
	update_window(&recall, 0, 0, 80, 24);
	update_window(&choice, 0, 0, 80, 24);
	update_window(&mirror, 0, 0, 80, 24);

	memset(screen.froshed, 1, sizeof screen.froshed);
	memset(recall.froshed, 1, sizeof recall.froshed);
	memset(choice.froshed, 1, sizeof choice.froshed);
	memset(mirror.froshed, 1, sizeof mirror.froshed);

	refresh_windows();

	/* Success */
	return 0;
}

static void cursor(term *t, int on)
{
	term_data *td=(term_data *) t;

	if (td->curs_vis != on && td->ocx == -1)
	{
		td->ocx=td->curs_x;
		td->ocy=td->curs_y;
	}
	td->curs_vis=on;
	update_window(td, td->curs_x, td->curs_y,
	              td->curs_x+1, td->curs_y+1);
	td->froshed[td->curs_y]=1;
}

errr Term_xtra_acn(int n, int v)
{
	term_data *t;

	switch (n)
	{
		case TERM_XTRA_CLEAR:
		t=(term_data *) Term;
		update_window(t, 0, 0, t->t.old->w, t->t.old->h);
		return 0;

		case TERM_XTRA_EVENT:
		if (v)
			return Term_xtra_acn_event();
		else
			return Term_xtra_acn_check();

		case TERM_XTRA_BORED:
		return Term_xtra_acn_check();

		case TERM_XTRA_FLUSH:
		if (have_caret)
			osbyte(osbyte_FLUSH_BUFFER, buffer_KEYBOARD, 0);
		return 0;

		case TERM_XTRA_FRESH:
		refresh_window((term_data *) Term);
		/*refresh_windows();*/
		return 0;

		case TERM_XTRA_FROSH:
		t=(term_data *) Term;
		t->froshed[v]=1;
		return 0;

		case TERM_XTRA_SHAPE:
		cursor(Term, v);
		return 0;

		case TERM_XTRA_NOISE:
		os_bell();
		return 0;

		case TERM_XTRA_REACT:
		return Term_xtra_acn_react();

		case TERM_XTRA_DELAY:
		if (v > 0)
		{
			os_t t = os_read_monotonic_time();
			while (os_read_monotonic_time() - t < v/10);
		}
		return (0);

		default:
		return 1;
	}
}

static errr Term_curs_acn(int x, int y)
{
	term_data *t = (term_data *) Term;
	int oldx = t->curs_x;
	int oldy = t->curs_y;

	t->curs_x = x;
	t->curs_y = y;

	if (!t->curs_vis)
		return 0;

	if ((x != oldx || y != oldy))
	{
		update_window(t, oldx, oldy, oldx+1, oldy+1);
		t->froshed[oldy]=1;

		if (t->ocx == -1)
		{
			t->ocx = oldx;
			t->ocy = oldy;
		}
	}

	update_window(t, t->curs_x, t->curs_y, t->curs_x+1, t->curs_y+1);
	t->froshed[t->curs_y]=1;

	return 0;
}

errr Term_wipe_acn(int x, int y, int n)
{
	update_window((term_data *) Term, x, y, x+n, y+1);

	return 0;
}

static errr Term_text_acn(int x, int y, int n, byte a, cptr s)
{
	update_window((term_data *) Term, x, y, x+n, y+1);

	return 0;
}

void Term_init_acn(term *t)
{
	term_data *term=(term_data *)t;

	term->ocx=-1;
	term->changed.x0=256;
	term->changed.y0=256;
	term->changed.x1=0;
	term->changed.y1=0;
	memset(term->olddisp, ' ', sizeof(term->olddisp));
	memset(term->oldcol, TERM_WHITE, sizeof(term->oldcol));
}


/*************************************************************
 *                                                           *
 *                File loading and saving                    *
 *                                                           *
 *************************************************************/

static int dataload_handler(wimp_message *message, void *handle)
{
	if (message->data.data_xfer.file_type != osfile_TYPE_ANGBAND)
		return 0;

	/*
	 * Note - we send a DataLoadAck _before_ loading the file. This
	 * may not work if it is an inter-application transfer, as the
	 * other application will delete the file on the next Wimp_Poll
	 * we do. But this doesn't matter as we don't support inter-
	 * application transfer (inwards), anyway.
	 */

	message->action=message_DATA_LOAD_ACK;
	message->your_ref=message->my_ref;
	wimp_send_message(wimp_USER_MESSAGE, message, message->sender);

	if (game_in_progress)
	{
		plog("You can't load a new game while you're still playing!");
		return 1;
	}

	strcpy(savefile, translate_name(message->data.data_xfer.file_name));

	window_to_front(screen.wimp);
	grabcaret();

	game_in_progress=1;
	flush();
	play_game(FALSE);
	quit(NULL);

	return 1;
}

static int showsave_handler(bits event_code, toolbox_action *event,
                            toolbox_block *id, void *handle)
{
	const char *fname;
	char buffer[256];

#if 0
	if (savefile[0])
		fname = translate_name(savefile);
	else
	{
		osfscontrol_canonicalise_path("<Angband$Dir>.^.SavedGame", buffer, 0, 0,
		                              sizeof buffer);
		fname=buffer;
	}
#else
	fname = translate_name(savefile);
#endif
	saveas_set_file_name(NONE, id->this_obj, fname);
	saveas_set_file_type(NONE, id->this_obj, osfile_TYPE_ANGBAND);
	saveas_set_file_size(NONE, id->this_obj, 50000); /* Rough guess */

	return 1;
}

static int savebutton_handler(bits event_code, toolbox_action *event,
                              toolbox_block *id, void *handle)
{
	if (event->flags & actionbutton_SELECTED_CANCEL)
		if (event->flags & actionbutton_SELECTED_ADJUST)
			saveas_set_file_name(NONE, (toolbox_o) handle, translate_name(savefile));

	return 1;
}

static int save_handler(bits event_code, toolbox_action *event,
                        toolbox_block *id, void *handle)
{
	saveas_action_save_to_file *save=(saveas_action_save_to_file *)&event->data;
	char tempsavefile[256];
	strcpy(tempsavefile, savefile);

	strcpy(savefile, translate_name(save->file_name));

	msg_flag=FALSE;

	do_cmd_save_game();

	saveas_file_save_completed(1, id->this_obj, save->file_name);

	strcpy(savefile, tempsavefile);

	return 1;
}

static int defaultsave_handler(bits event_code, toolbox_action *event,
                               toolbox_block *id, void *handle)
{
	msg_flag=FALSE;

	do_cmd_save_game();

	return 1;
}

static int savecomplete_handler(bits event_code, toolbox_action *event,
                                toolbox_block *id, void *handle)
{
	saveas_action_save_completed *save=(saveas_action_save_completed *)&event->data;

	if (event->flags & saveas_SAVE_SAFE)
		strcpy(savefile, translate_name(save->file_name));

	return 1;
}

#if 0
static int loadfile_handler(wimp_message *message, void *handle)
{
	strcpy(handle, translate_name(message->data.data_xfer.file_name));
	file_dragged=1;

	return 1;
}

static int savefile_handler(bits event_code, toolbox_action *event,
                            toolbox_block *id, void *handle)
{
	saveas_action_save_to_file *save=(saveas_action_save_to_file *)&event->data;
	func_bool saver=(func_bool) handle;
	errr e;
	char buf[256];

	strcpy(buf, translate_name(save->file_name));

	/* In case saver wants to display messages */
	grabcaret();

	msg_flag=FALSE;

	e=saver(buf);

	xsaveas_file_save_completed(e==0, id->this_obj, save->file_name);

	if (e)
		escape_pressed=1;

	return 1;
}

static int cancelsavefile_handler(bits event_code, toolbox_action *event,
                                  toolbox_block *id, void *handle)
{
	escape_pressed=1;

	return 1;
}

static int endsavefile_handler(bits event_code, toolbox_action *event,
                               toolbox_block *id, void *handle)
{
	file_dragged=1;

	return 1;
}

static errr loadfile_hook(cptr defname, int row, func_errr loader)
{
	char ourbuf[256];

	Term_putstr(0, row, -1, TERM_YELLOW, "[Drag a file to the window]");

	Term_fresh();

	event_register_message_handler(message_DATA_LOAD, loadfile_handler, ourbuf);

	file_dragged=escape_pressed=0;

	while (!file_dragged && !escape_pressed)
		event_poll(0, 0, 0);

	event_deregister_message_handler(message_DATA_LOAD, loadfile_handler, ourbuf);

	if (escape_pressed)
		return 1;

	return loader(ourbuf);
}

static errr savefile_hook(cptr defname, int row, func_errr saver)
{
	toolbox_o savebox;
	union
	{
		toolbox_position pos;
		wimp_pointer pointer;
	} mouse;

	Term_fresh();

	savebox=toolbox_create_object(NONE, (toolbox_id)"SaveFile");

	saveas_set_file_name(NONE, savebox, translate_name(defname));
	saveas_set_file_size(NONE, savebox, 1024); /* This'll do */

	event_register_toolbox_handler(savebox, action_SAVE_AS_SAVE_TO_FILE, savefile_handler, (void *) saver);
	event_register_toolbox_handler(savebox, action_SAVE_AS_SAVE_COMPLETED, endsavefile_handler, 0);
	event_register_toolbox_handler(savebox, action_SAVE_AS_DIALOGUE_COMPLETED, cancelsavefile_handler, 0);

	wimp_get_pointer_info(&mouse.pointer);

	mouse.pos.top_left.x-=64;
	mouse.pos.top_left.y+=64;

	toolbox_show_object(toolbox_SHOW_AS_MENU, savebox, toolbox_POSITION_TOP_LEFT,
	                    &mouse.pos, toolbox_NULL_OBJECT, toolbox_NULL_COMPONENT);

	file_dragged=escape_pressed=0;

	while (!file_dragged && !escape_pressed)
		event_poll(0, 0, 0);

	event_deregister_toolbox_handler(savebox, action_SAVE_AS_SAVE_TO_FILE, savefile_handler, (void *) saver);
	event_deregister_toolbox_handler(savebox, action_SAVE_AS_SAVE_COMPLETED, endsavefile_handler, 0);
	event_deregister_toolbox_handler(savebox, action_SAVE_AS_DIALOGUE_COMPLETED, cancelsavefile_handler, 0);

	toolbox_delete_object(NONE, savebox);

	if (escape_pressed)
		return 1;

	return 0;
}

static errr askforfile_hook(cptr defname, int row, func_errr filer, int mode)
{
	switch (mode)
	{
		case O_RDONLY:
		return loadfile_hook(defname, row, filer);

		case O_WRONLY:
		case O_RDWR:
		return savefile_hook(defname, row, filer);
	}

	return -1;
}
#endif

static int defaultcols_handler(bits event_code, toolbox_action *event,
                               toolbox_block *id, void *handle)
{
	memcpy(&palette, &default_palette, sizeof default_palette);
	palette.entries[TERM_CURSOR]=0x00ffff00;

	palette_handler(0, 0);

	update_window(&screen, 0, 0, 80, 24);
	update_window(&choice, 0, 0, 80, 24);
	update_window(&recall, 0, 0, 80, 24);
	update_window(&mirror, 0, 0, 80, 24);

	/* Force the over-clever refresh routine to actually replot
	all characters */
	memset(screen.olddisp, 0, sizeof screen.olddisp);
	memset(choice.olddisp, 0, sizeof choice.olddisp);
	memset(recall.olddisp, 0, sizeof recall.olddisp);
	memset(mirror.olddisp, 0, sizeof mirror.olddisp);
	memset(screen.froshed, 1, sizeof screen.froshed);
	memset(choice.froshed, 1, sizeof choice.froshed);
	memset(recall.froshed, 1, sizeof recall.froshed);
	memset(mirror.froshed, 1, sizeof mirror.froshed);

	refresh_windows();

	return 1;
}


/*************************************************************
 *                                                           *
 *     Handlers for various wimp and toolbox events          *
 *                                                           *
 *************************************************************/

static int palette_handler(wimp_message *message, void *handle)
{
	int col;

	os_read_mode_variable(os_CURRENT_MODE, os_MODEVAR_NCOLOUR, (int *) &ncolours);
	for (col=0; col<256; col++)
		coltable[col]=colourtrans_return_colour_number(palette.entries[col]);

	return 1;
}

static int proginfo_handler(bits event_code, toolbox_action *event,
                            toolbox_block *id, void *handle)
{
	proginfo_set_version(NONE, id->this_obj, VERSION);

	return 1;
}

static int iconbar_handler(bits event_code, toolbox_action *event,
                           toolbox_block *id, void *handle)
{
	if (term_recall)
		window_to_front(recall.wimp);
	if (term_choice)
		window_to_front(choice.wimp);
	if (term_mirror)
		window_to_front(mirror.wimp);

	window_to_front(screen.wimp);
	grabcaret();

	return 1;
}

static int showfilemenu_handler(bits event_code, toolbox_action *event,
                                toolbox_block *id, void *handle)
{
	menu_set_fade(NONE, id->this_obj, menu_New, !initialised || game_in_progress);
	menu_set_fade(NONE, id->this_obj, menu_Save, !character_generated);

	return 1;
}

static int showcoloursmenu_handler(bits event_code, toolbox_action *event,
                                   toolbox_block *id, void *handle)
{
	menu_set_tick(NONE, id->this_obj, menu_Dithered, ncolours < 65535 && !solid_colours);
	menu_set_fade(NONE, id->this_obj, menu_Dithered, ncolours >= 65535);

	return 1;
}

static int showwindowsmenu_handler(bits event_code, toolbox_action *event,
                                   toolbox_block *id, void *handle)
{
	/* Bit hacky */
	menu_set_tick(NONE, id->this_obj, menu_Angband, 1);
	menu_set_tick(NONE, id->this_obj, menu_Recall, term_recall != 0);
	menu_set_tick(NONE, id->this_obj, menu_Choice, term_choice != 0);
	menu_set_tick(NONE, id->this_obj, menu_Mirror, term_mirror != 0);

	return 1;
}

static int coloursmenu_handler(bits event_code, toolbox_action *event,
                               toolbox_block *id, void *handle)
{
	int tick;

	switch (id->this_cmp)
	{
		case menu_Dithered:
		tick=!menu_get_tick(NONE, id->this_obj, menu_Dithered);
		menu_set_tick(NONE, id->this_obj, menu_Dithered, tick);
		solid_colours=!tick;
		update_window(&screen, 0, 0, 80, 24);
		update_window(&choice, 0, 0, 80, 24);
		update_window(&recall, 0, 0, 80, 24);
		update_window(&mirror, 0, 0, 80, 24);
		/* Force the over-clever refresh routine to actually replot
		all characters */
		memset(screen.oldcol, 0, sizeof screen.oldcol);
		memset(choice.oldcol, 0, sizeof choice.oldcol);
		memset(recall.oldcol, 0, sizeof recall.oldcol);
		memset(mirror.oldcol, 0, sizeof mirror.oldcol);
		memset(screen.froshed, 1, sizeof screen.froshed);
		memset(choice.froshed, 1, sizeof choice.froshed);
		memset(recall.froshed, 1, sizeof recall.froshed);
		memset(mirror.froshed, 1, sizeof mirror.froshed);
		refresh_windows();
		return 1;
	}

	return 0;
}

static int openwindow_handler(bits event_code, toolbox_action *event,
                              toolbox_block *id, void *handle)
{
	term_data *t=(term_data *) handle;

	menu_set_tick(NONE, id->this_obj, id->this_cmp, 1);

	toolbox_show_object(NONE, t->window, toolbox_POSITION_DEFAULT, 0,
	                    toolbox_NULL_OBJECT, toolbox_NULL_COMPONENT);

	return 1;
}

static int suppwin_handler(bits event_code, toolbox_action *event,
                           toolbox_block *id, void *handle)
{
	term_data *t=(term_data *) handle;

	switch (event_code)
	{
		case action_WINDOW_ABOUT_TO_BE_SHOWN:
		if (t==&recall)
			term_recall=&t->t;
		else if (t==&choice)
			term_choice=&t->t;
		else if (t==&mirror)
			term_mirror=&t->t;
		else if (t==&screen)
		{
			if (term_recall)
				window_to_front(recall.wimp);
			if (term_choice)
				window_to_front(choice.wimp);
		}
		break;

		case action_WINDOW_DIALOGUE_COMPLETED:
		if (t==&recall)
			term_recall=0;
		else if (t==&choice)
			term_choice=0;
		else if (t==&mirror)
			term_mirror=0;
		else if (t==&screen)
		{
			window_hide(recall.wimp);
			window_hide(choice.wimp);
			window_hide(mirror.wimp);
		}
		break;
	}

	return 1;
}

static int quitbutton_handler(bits event_code, toolbox_action *event,
                              toolbox_block *id, void *handle)
{
	if (shutting_down)
	{
		wimp_key event;
		event.c=wimp_KEY_F12+wimp_KEY_SHIFT+wimp_KEY_CONTROL;
		wimp_send_message(wimp_KEY_PRESSED, (wimp_message *) &event, shutting_down);
		shutting_down=0;
	}

	quit(NULL);

	return 1;
}

static int delquit_handler(bits event_code, toolbox_action *event,
                           toolbox_block *id, void *handle)
{
	event_deregister_toolbox_handler(id->this_obj, action_QUIT_QUIT,
	                                 quitbutton_handler, 0);
	event_deregister_toolbox_handler(id->this_obj, action_QUIT_DIALOGUE_COMPLETED,
	                                 delquit_handler, 0);

	toolbox_delete_object(NONE, id->this_obj);

	grabcaret();

	return 1;
}

static void popup_quitbox(void)
{
	toolbox_o q;

	q=toolbox_create_object(NONE, (toolbox_id) "Quit");
	ShowCentred(toolbox_SHOW_AS_MENU, q, toolbox_NULL_OBJECT, toolbox_NULL_COMPONENT);
	event_register_toolbox_handler(q, action_QUIT_QUIT, quitbutton_handler, 0);
	event_register_toolbox_handler(q, action_QUIT_DIALOGUE_COMPLETED, delquit_handler, 0);
}

static int quitmenu_handler(bits event_code, toolbox_action *event,
                            toolbox_block *id, void *handle)
{
	shutting_down=0;

	if (game_in_progress && character_generated)
	{
		/* Forget messages */
		msg_flag = FALSE;

		/* Save the game */
		do_cmd_save_game();
	}

	/* Quit */

	quit(NULL);

	return 1;
}

static int quit_handler(wimp_message *message, void *handle)
{
	return quitbutton_handler(0, 0, 0, 0);
}

static int prequit_handler(wimp_message *message, void *handle)
{
	if (game_in_progress && character_generated)
	{
		/* Allow user to cancel "dangerous" exit */
		if (!(message->data.prequit.flags & wimp_PRE_QUIT_TASK_ONLY))
			shutting_down=message->sender;
		else
			shutting_down=0;

		message->your_ref=message->my_ref;
		wimp_send_message(wimp_USER_MESSAGE_ACKNOWLEDGE, message, message->sender);
		popup_quitbox();
	}

	return 1;
}

static int new_handler(bits event_code, toolbox_action *event,
                       toolbox_block *id, void *handle)
{
	if (game_in_progress)
	{
		plog("You can't start a new game while you're still playing!");
		return 1;
	}

	osfscontrol_canonicalise_path("<Angband$Dir>.^.SavedGame", savefile, 0, 0,
	                              sizeof savefile);

	strcpy(savefile, translate_name(savefile));

	game_in_progress=1;
	flush();
	play_game(TRUE);
	quit(NULL);

	return 1;
}


static int key_handler(wimp_event_no event_code, wimp_block *event,
                       toolbox_block *id, void *handle)
{
	/*
	 * This ensures that typing 4 into a Save as dialogue box
	 * doesn't move your character left, and pressing F12
	 * always brings up the command line.
	 */
	if (id->this_obj != screen.window)
	{
		wimp_process_key(event->key.c);
		return 1;
	}

	switch (event->key.c)
	{
		/* F12 is always sent to the Wimp */
		case wimp_KEY_F12:
		case wimp_KEY_F12+wimp_KEY_SHIFT:
		case wimp_KEY_F12+wimp_KEY_CONTROL:
		case wimp_KEY_F12+wimp_KEY_SHIFT+wimp_KEY_CONTROL:
		wimp_process_key(event->key.c);
		break;
		default:
		/*
		 * Hack - allow Shift & Ctrl as modifiers to the keypad
		 */
		if (event->key.c <= '9' && event->key.c >= '0')
		{
			if (osbyte1(osbyte_IN_KEY, 0xFF, 0xFF))     /* Is Shift held down? */
				event->key.c |= 0x800;
			if (osbyte1(osbyte_IN_KEY, 0xFE, 0xFF))     /* Is Ctrl held down? */
				event->key.c |= 0x400;
		}
		/* Special keys are sent encoded */
		if (event->key.c >= 0x100 || event->key.c == 31)
		{
			const static char hex[]="0123456789ABCDEF";

			Term_keypress(31);
			Term_keypress(hex[(event->key.c & 0xF00) >> 8]);
			Term_keypress(hex[(event->key.c & 0xF0) >> 4]);
			Term_keypress(hex[event->key.c & 0xF]);
			Term_keypress(13);
		}
		else
			Term_keypress(event->key.c);
		key_pressed=1;
		if (event->key.c == 27)
			escape_pressed=1;
		break;
	}

	return 1;
}

static int mouse_handler(wimp_event_no event_code, wimp_block *event,
                         toolbox_block *id, void *handle)
{
	if (event->pointer.buttons != wimp_CLICK_MENU)
		grabcaret();

	return 1;
}

static int caret_handler(wimp_event_no event_code, wimp_block *event,
                         toolbox_block *id, void *handle)
{
	have_caret = event_code==wimp_GAIN_CARET;

	if (event_code == wimp_GAIN_CARET && !have_caret_entity)
	{
		wimp_message message;

		message.size=24;
		message.your_ref=0;
		message.action=message_CLAIM_ENTITY;
		message.data.claim_entity.flags=3; /* Caret / selection */
		wimp_send_message(wimp_USER_MESSAGE, &message, wimp_BROADCAST);
		have_caret_entity=1;
	}

	return 1;
}

static int entity_handler(wimp_message *message, void *handle)
{
	if (message->data.claim_entity.flags & 3)
		have_caret_entity=0;

	return 1;
}

static int savechoices_handler(bits event_code, toolbox_action *event,
                               toolbox_block *id, void *handle)
{
	savechoices();

	return 1;
}

static int create_handler(bits event_code, toolbox_action *event,
                          toolbox_block *id, void *handle)
{
	const char *name=event->data.created.name;

	if (strcmp(name, "File") == 0)
	{
		event_register_toolbox_handler(id->this_obj, action_MENU_ABOUT_TO_BE_SHOWN,
		                               showfilemenu_handler, 0);
		return 1;
	}

	if (strcmp(name, "Colours") == 0)
	{
		event_register_toolbox_handler(id->this_obj, action_MENU_ABOUT_TO_BE_SHOWN,
		                               showcoloursmenu_handler, 0);
		event_register_toolbox_handler(id->this_obj, action_MENU_SELECTION,
		                               coloursmenu_handler, 0);
		return 1;
	}

	if (strcmp(name, "Windows") == 0)
	{
		event_register_toolbox_handler(id->this_obj, action_MENU_ABOUT_TO_BE_SHOWN,
		                               showwindowsmenu_handler, 0);
		return 1;
	}

	if (strcmp(name, "SaveAs") == 0)
	{
		event_register_toolbox_handler(id->this_obj, action_SAVE_AS_ABOUT_TO_BE_SHOWN,
		                               showsave_handler, 0);
		event_register_toolbox_handler(id->this_obj, action_SAVE_AS_SAVE_TO_FILE,
		                               save_handler, 0);
		event_register_toolbox_handler(saveas_get_window_id(NONE, id->this_obj),
		                               action_ACTION_BUTTON_SELECTED,
		                               savebutton_handler, id->this_obj);
		return 1;
	}

	return 0;
}

/*************************************************************
 *                                                           *
 *    The difficult bit - keeping the windows up-to-date     *
 *                                                           *
 *************************************************************/

static void do_redraw(wimp_draw *redraw, int more, term_data *t, int blank)
{
	int x0, x1, y0, y1, x, y, rx, ry, c;
	int ox;
	int nodither = solid_colours || ncolours > 255;
	static char olddef[10]=
	{23, 135};
	const static char blockdef[10]=
	{23, 135, 255, 255, 255, 255, 255, 255, 255, 255};
	char **ch=t->t.old->c;
	byte **a=t->t.old->a;
	char buf[80];

	/* Hackery - define character 135 (not normally defined) as a solid block */
	osword_read_char_definition((osword_char_definition_block *)(olddef+1));
	os_writen(blockdef, 10);

	while (more)
	{
		rx=redraw->box.x0-redraw->xscroll;
		ry=redraw->box.y1-redraw->yscroll;
		x0=(redraw->clip.x0-rx)/16;
		x1=(redraw->clip.x1-rx-1)/16;
		y0=(768-(redraw->clip.y1-ry))/32;
		y1=(767-(redraw->clip.y0-ry))/32;

		if (blank)
		{
			/*
			 * We're updating the window because the contents have changed
			 * This code is rather complex, but it's FAST, and doesn't
			 * flicker (particularly important when "Draw Viewable Lite brightly"
			 * is on)
			 */

			/* Set the background colour */
			if (nodither)
				os_set_colour(os_COLOUR_SET_BG, coltable[TERM_DARK]);
			else
				colourtrans_set_gcol(palette.entries[TERM_DARK],
			                     colourtrans_USE_ECFS|colourtrans_SET_BG,
			                     os_ACTION_OVERWRITE, 0);

			c=-1;

			for (y=y0; y<=y1; y++)
			{
				if (!t->froshed[y])
					continue;

				for (x=x0; x<=x1; x++)
					buf[x]=ch[y][x] >= ' ' ? ch[y][x] : ' ';

				for (x=x0; x<=x1; )
				{
					/* Skip past any chars that haven't changed at all*/
					while (buf[x] == t->olddisp[y][x] &&
					       a[y][x] == t->oldcol[y][x] && x<=x1)
						x++;

					if (x>x1)
						break;

					/* We're pointing at a character that has changed in some way */

					/* Blank any newly blanked characters */
					ox=x;
					while (buf[x] == ' ' && t->olddisp[y][x] != ' ')
						x++;

					if (x>ox)
					{
						os_plot(os_MOVE_TO, ox*16+rx, 767-y*32+ry);
						os_plot(os_PLOT_BG_BY | os_PLOT_RECTANGLE, 16*(x-ox)-1, -31);
						continue;
					}

					/* Change the drawing colour if necessary */
					if (a[y][x] != c)
					{
						c=a[y][x];
						if (nodither)
							os_set_colour(NONE, coltable[c]);
						else
							colourtrans_set_gcol(palette.entries[c], colourtrans_USE_ECFS,
						                     os_ACTION_OVERWRITE, 0);
					}

					/* Find how many characters have only changed colour */
					while (x<=x1 &&
					       buf[x] == t->olddisp[y][x] &&
					       a[y][x] == c && t->oldcol[y][x] != c)
						x++;

					if (x>ox)
					{
						os_plot(os_MOVE_TO, ox*16+rx, 767-y*32+ry);
						os_writen(buf+ox, x-ox);
						continue;
					}

					/* Now do characters that have actually changed symbol */
					while (buf[x] != t->olddisp[y][x] &&
					       a[y][x] == c && x<=x1)
						x++;

					os_plot(os_MOVE_TO, x*16+rx-1, 767-y*32+ry-31);
					os_plot(os_PLOT_BG_BY | os_PLOT_RECTANGLE, -(16*(x-ox)-1), +31);
					os_writen(buf+ox, x-ox);
				}
			}
		}
		else
		{
			/* We're redrawing the window because it's just been uncovered */

			/* Clear the background */
			if (nodither)
				os_set_colour(os_COLOUR_SET_BG, coltable[TERM_DARK]);
			else
				colourtrans_set_gcol(palette.entries[TERM_DARK],
			                     colourtrans_USE_ECFS|colourtrans_SET_BG,
			                     os_ACTION_OVERWRITE, 0);

			os_plot(os_MOVE_TO, redraw->clip.x0, redraw->clip.y0);
			os_plot(os_PLOT_BG_TO|os_PLOT_RECTANGLE, redraw->clip.x1-1, redraw->clip.y1-1);

			for (y=y0; y<=y1; y++)
			{
				os_plot(os_MOVE_TO, x0*16+rx, 767-y*32+ry);

				for (x=x0; x<=x1; x++)
					buf[x]=ch[y][x] >= ' ' ? ch[y][x] : ' ';

				for (x=x0; x<=x1; )
				{
					c=a[y][x];
					if (nodither)
						os_set_colour(NONE, coltable[c]);
					else
						colourtrans_set_gcol(palette.entries[c], colourtrans_USE_ECFS,
					                     os_ACTION_OVERWRITE, 0);

					ox=x;
					while (x<=x1 && (buf[x] == ' ' || a[y][x] == c))
						x++;

					if (ox!=x)
						os_writen(buf+ox, x-ox);
				}
			}
		}

		if (t->curs_vis && x0<=t->curs_x && t->curs_x<=x1 &&
		    y0<=t->curs_y && t->curs_y<=y1 && t==&screen)
		{
			if (nodither)
				os_set_colour(NONE, coltable[TERM_CURSOR]);
			else
				colourtrans_set_gcol(palette.entries[TERM_CURSOR], colourtrans_USE_ECFS,
			                     os_ACTION_OVERWRITE, 0);
			os_plot(os_MOVE_TO, t->curs_x*16+rx, 767-t->curs_y*32+ry);
			os_plot(os_PLOT_BY, 15, 0);
			os_plot(os_PLOT_BY, 0, -31);
			os_plot(os_PLOT_BY, -15, 0);
			os_plot(os_PLOT_BY, 0, 31);
		}

		more=wimp_get_rectangle(redraw);
	}

	/* Restore original definition of character 135 */
	os_writen(olddef, 10);
}

static int redraw_handler(int event_code, wimp_block *event, toolbox_block *id, void *handle)
{
	wimp_draw redraw;
	int more;

	redraw.w=event->redraw.w;

	more=wimp_redraw_window(&redraw);

	do_redraw(&redraw, more, (term_data *) handle, FALSE);

	return 1;
}

static void update_window(term_data *t, int x0, int y0, int x1, int y1)
{
	if (x0<t->changed.x0)
		t->changed.x0=x0;
	if (x1>t->changed.x1)
		t->changed.x1=x1;
	if (y0<t->changed.y0)
		t->changed.y0=y0;
	if (y1>t->changed.y1)
		t->changed.y1=y1;
}


static void refresh_window(term_data *t)
{
	wimp_draw redraw;
	int more, i;

	if (t->ocx >= 0)
		t->olddisp[t->ocy][t->ocx]=0;

	t->ocx=-1;

	if (t->changed.x1 <= t->changed.x0 || t->changed.y1 <= t->changed.y0)
		return;

	redraw.w=t->wimp;
	redraw.box.x0=t->changed.x0*16;
	redraw.box.x1=t->changed.x1*16;
	redraw.box.y0=768-t->changed.y1*32;
	redraw.box.y1=768-t->changed.y0*32;

	more=wimp_update_window(&redraw);

	do_redraw(&redraw, more, t, TRUE);

	t->changed.x0=256;
	t->changed.y0=256;
	t->changed.x1=0;
	t->changed.y1=0;

	for (i=0; i<24; i++)
		if (t->froshed[i])
	{
		t->froshed[i] = 0;
		memcpy(t->olddisp[i], t->t.old->c[i], 80);
		memcpy(t->oldcol[i], t->t.old->a[i], 80);
	}
}

static void refresh_windows(void)
{
	refresh_window(&screen);
	refresh_window(&recall);
	refresh_window(&choice);
	refresh_window(&mirror);
}

/*************************************************************
 *                                                           *
 *         Loading and saving our window positions           *
 *                                                           *
 *************************************************************/

static void load_window_pos(FILE *f, term_data *t)
{
	wimp_open open;
	int on;

	fscanf(f, "%d %d %d %d %d %d %d", &on, &open.visible.x0, &open.visible.y0,
	       &open.visible.x1, &open.visible.y1,
	       &open.xscroll, &open.yscroll);
	open.next=screen.wimp;
	if (on)
		toolbox_show_object(NONE, t->window, toolbox_POSITION_FULL,
	                    (toolbox_position *) &open.visible,
	                    toolbox_NULL_OBJECT, toolbox_NULL_COMPONENT);
	else
	{
		open.w=t->wimp;
		wimp_open_window(&open);
		wimp_close_window(t->wimp);
	}
}

static void show_windows(void)
{
	FILE *f;
	toolbox_position pos;
	int version, i;

	f=my_fopen("<Angband$ChoicesFile>", "r");

	if (f)
	{
		fscanf(f, "%d", &version);
		if (version < 2 || version > 5)
		{
			my_fclose(f);
			f=0;
		}
	}

	if (f==0)
	{
		/* No saved window positions - open only the playing window */
		toolbox_show_object(NONE, screen.window, toolbox_POSITION_DEFAULT, 0,
		                    toolbox_NULL_OBJECT, toolbox_NULL_COMPONENT);
		return;
	}

	fscanf(f, "%d %d", &pos.top_left.x, &pos.top_left.y);
	toolbox_show_object(NONE, screen.window, toolbox_POSITION_TOP_LEFT,
	                    &pos, toolbox_NULL_OBJECT, toolbox_NULL_COMPONENT);

	load_window_pos(f, &recall);
	load_window_pos(f, &choice);
	if (version >= 4)
		load_window_pos(f, &mirror);

	fscanf(f, "%d", &solid_colours);

	if (version>=3 && version<=4)
	{
		for (i=0; i<16; i++)
			fscanf(f, "%x", &palette.entries[i]);

		fscanf(f, "%x", &palette.entries[TERM_CURSOR]);
	}

	my_fclose(f);
}

static void save_window_pos(FILE *f, term_data *t, void *active)
{
	wimp_window_state state;

	state.w=t->wimp;
	wimp_get_window_state(&state);
	fprintf(f, "%d %d %d %d %d %d %d\n", active ? 1 : 0,
	        state.visible.x0, state.visible.y0,
	        state.visible.x1, state.visible.y1,
	        state.xscroll, state.yscroll);
}

static void savechoices(void)
{
	FILE *f;
	wimp_window_state state;

	f=my_fopen("<Angband$ChoicesFile>", "w");

	if (f==0)
		/* Don't do anything - it's probably in a read-only location */
		return;

	/* File format version */
	fprintf(f, "5\n");

	state.w=screen.wimp;
	wimp_get_window_state(&state);
	fprintf(f, "%d %d\n", state.visible.x0, state.visible.y1);

	save_window_pos(f, &recall, term_recall);
	save_window_pos(f, &choice, term_choice);
	save_window_pos(f, &mirror, term_mirror);

	fprintf(f, "%d\n", solid_colours);

	/*for (i=0; i<17; i++)
	fprintf(f, "%08X\n", palette.entries[i]);*/

	my_fclose(f);
}


/*************************************************************
 *                                                           *
 *        Initialisation and finalisation routines           *
 *                                                           *
 *************************************************************/
static void final_acn(void)
{
	int i;

	for (i=0; i<openfiles; i++)
		xosfind_close(filehandle[i]);
}

static void init_stuff(void)
{
	char buf[1024];

	strcpy(buf, "Angband:");

	init_file_paths(buf);
}

/*
 * To speed up the game, turn off explicit stack-limit checking
 * and set a sufficiently large stack size to start with.
 */
int __root_stack_size=20*1024;

int main(int argc, char *argv[])
{
	int i;

	signal(SIGOSERROR, oserror_handler);

	quit_aux = quit_hook;
	plog_aux = plog_hook;
	core_aux = core_hook;

	/* XXX XXX XXX Not ready yet */
	/* askforfile_aux = askforfile_hook; */

	/* Get the file paths */
	init_stuff();

	/* Initialise the Toolbox, and load user preferences */
	init_acn();

	/* Set up the colour table */
	for (i=0; i<256; i++)
	{
		colour_table[i][1] = (palette.entries[i] >> 8) & 0xFF;
		colour_table[i][2] = (palette.entries[i] >> 16) & 0xFF;
		colour_table[i][3] = palette.entries[i] >> 24;
	}

	/* Catch nasty signals */
	signals_init();

	/* Display the 'news' file */
	show_news();

	/* Initialize the arrays */
	init_some_arrays();

	/* No name (yet) */
	strcpy(player_name, "");

	/* Hack -- assume wizard permissions */
	can_be_wizard = TRUE;

	/* Hack -- Use the "pref-acn.prf" file */
	ANGBAND_SYS = "acn";

	initialised=1;

	if (argc==1)
	{
		/* Prompt the user */
		prt("[Double-click on a saved game, or choose 'New' from the 'File' menu]", 23, 5);
		Term_fresh();
	}

	if (argc >= 2)
	{
		strcpy(savefile, translate_name(argv[1]));
		game_in_progress=1;
		pause_line(23);
		flush();
		play_game(FALSE);
		quit(NULL);
	}

	for (; ; )
		event_poll(0, 0, 0);

	return 0;
}

static void term_data_link(term_data *td, int keys)
{
	term *t= &td->t;

	term_init(t, 80, 24, keys);

	/* Use a "soft" cursor XXX XXX XXX */
	/* t->soft_cursor = TRUE; */

	/* Erase with "white space" */
	t->attr_blank = TERM_WHITE;
	t->char_blank = ' ';

	/* Set some of the hooks */
	t->init_hook = Term_init_acn;
	t->xtra_hook = Term_xtra_acn;
	t->wipe_hook = Term_wipe_acn;
	t->curs_hook = Term_curs_acn;
	t->text_hook = Term_text_acn;

	t->data = (vptr) td;

	Term_activate(t);
}


static errr init_acn(void)
{
	errr e=0;

	wimp_event_no event;
	os_error *r;

	const
	static wimp_MESSAGE_LIST(7) messages=
	{message_PREQUIT,
		message_PALETTE_CHANGE,
		message_MODE_CHANGE,
		message_DATA_LOAD,
		message_DATA_OPEN,
		message_CLAIM_ENTITY,
	0};

	const
	static toolbox_ACTION_LIST(27) action_nos=
	{action_ERROR,
		action_OBJECT_AUTO_CREATED,
		action_MENU_ABOUT_TO_BE_SHOWN,
		action_MENU_SELECTION,
		action_MENU_SUB_MENU,
		action_WINDOW_ABOUT_TO_BE_SHOWN,
		action_WINDOW_DIALOGUE_COMPLETED,
		action_SAVE_AS_ABOUT_TO_BE_SHOWN,
		action_SAVE_AS_SAVE_TO_FILE,
		action_SAVE_AS_SAVE_COMPLETED,
		action_SAVE_AS_DIALOGUE_COMPLETED,
		action_PROG_INFO_ABOUT_TO_BE_SHOWN,
		action_QUIT_QUIT,
		action_QUIT_DIALOGUE_COMPLETED,
		action_ACTION_BUTTON_SELECTED,
		action_Quit,
		action_Iconbar,
		action_New,
		action_Save,
		action_OpenRecall,
		action_OpenChoice,
		action_OpenAngband,
		action_OpenMirror,
		action_DefaultCols,
		action_SaveChoices,
	0};

	toolbox_initialise(NONE, wimp_VERSION_RO3, (wimp_message_list *) &messages,
	                   (toolbox_action_list *) &action_nos,
	                   getenv("Angband$Dir"), &mfd, &id_block, &wimpver, 0);

	recall.window=toolbox_create_object(NONE, (toolbox_id)"Recall");
	recall.wimp=window_get_wimp_handle(NONE, recall.window);
	choice.window=toolbox_create_object(NONE, (toolbox_id)"Choice");
	choice.wimp=window_get_wimp_handle(NONE, choice.window);
	screen.window=toolbox_create_object(NONE, (toolbox_id)"Screen");
	screen.wimp=window_get_wimp_handle(NONE, screen.window);
	mirror.window=toolbox_create_object(NONE, (toolbox_id)"Mirror");
	mirror.wimp=window_get_wimp_handle(NONE, mirror.window);

	memcpy(&palette, &default_palette, sizeof default_palette);
	palette.entries[TERM_CURSOR]=0x00ffff00;

	show_windows();

	r=event_initialise(&id_block);

	if (!r)
		r=event_register_message_handler(message_QUIT, quit_handler, 0);

	if (!r)
		r=event_register_message_handler(message_PALETTE_CHANGE, palette_handler, 0);

	if (!r)
		r=event_register_message_handler(message_PREQUIT, prequit_handler, 0);

	if (!r)
		r=event_register_message_handler(message_DATA_LOAD, dataload_handler, 0);

	if (!r)
		r=event_register_message_handler(message_DATA_OPEN, dataload_handler, 0);

	if (!r)
		r=event_register_message_handler(message_CLAIM_ENTITY, entity_handler, 0);

	if (!r)
		r=event_register_toolbox_handler(event_ANY, action_ERROR,
	                                 error_handler, 0);
	if (!r)
		r=event_register_toolbox_handler(event_ANY, action_Quit,
	                                 quitmenu_handler, 0);
	if (!r)
		r=event_register_toolbox_handler(event_ANY, action_Iconbar,
	                                 iconbar_handler, 0);
	if (!r)
		r=event_register_toolbox_handler(event_ANY, action_New,
	                                 new_handler, 0);
	if (!r)
		r=event_register_toolbox_handler(event_ANY, action_OpenRecall,
	                                 openwindow_handler, &recall);
	if (!r)
		r=event_register_toolbox_handler(event_ANY, action_OpenChoice,
	                                 openwindow_handler, &choice);
	if (!r)
		r=event_register_toolbox_handler(event_ANY, action_OpenAngband,
	                                 openwindow_handler, &screen);
	if (!r)
		r=event_register_toolbox_handler(event_ANY, action_OpenMirror,
	                                 openwindow_handler, &mirror);
	if (!r)
		r=event_register_toolbox_handler(event_ANY, action_DefaultCols,
	                                 defaultcols_handler, 0);
	if (!r)
		r=event_register_toolbox_handler(event_ANY, action_SaveChoices,
	                                 savechoices_handler, 0);
	if (!r)
		r=event_register_toolbox_handler(event_ANY, action_OBJECT_AUTO_CREATED,
	                                 create_handler, 0);
	if (!r)
		r=event_register_toolbox_handler(event_ANY, action_Save,
	                                 defaultsave_handler, 0);
	if (!r)
		r=event_register_toolbox_handler(event_ANY, action_SAVE_AS_SAVE_COMPLETED,
	                                 savecomplete_handler, 0);
	if (!r)
		r=event_register_toolbox_handler(event_ANY, action_PROG_INFO_ABOUT_TO_BE_SHOWN,
	                                 proginfo_handler, 0);
	if (!r)
		r=event_register_toolbox_handler(recall.window, action_WINDOW_ABOUT_TO_BE_SHOWN,
	                                 suppwin_handler, &recall);
	if (!r)
		r=event_register_toolbox_handler(choice.window, action_WINDOW_ABOUT_TO_BE_SHOWN,
	                                 suppwin_handler, &choice);
	if (!r)
		r=event_register_toolbox_handler(mirror.window, action_WINDOW_ABOUT_TO_BE_SHOWN,
	                                 suppwin_handler, &mirror);
	if (!r)
		r=event_register_toolbox_handler(screen.window, action_WINDOW_ABOUT_TO_BE_SHOWN,
	                                 suppwin_handler, &screen);
	if (!r)
		r=event_register_toolbox_handler(recall.window, action_WINDOW_DIALOGUE_COMPLETED,
	                                 suppwin_handler, &recall);
	if (!r)
		r=event_register_toolbox_handler(choice.window, action_WINDOW_DIALOGUE_COMPLETED,
	                                 suppwin_handler, &choice);
	if (!r)
		r=event_register_toolbox_handler(mirror.window, action_WINDOW_DIALOGUE_COMPLETED,
	                                 suppwin_handler, &mirror);
	if (!r)
		r=event_register_toolbox_handler(screen.window, action_WINDOW_DIALOGUE_COMPLETED,
	                                 suppwin_handler, &screen);
	if (!r)
		r=event_register_wimp_handler(screen.window, wimp_MOUSE_CLICK,
	                              mouse_handler, 0);
	if (!r)
		r=event_register_wimp_handler(event_ANY, wimp_KEY_PRESSED,
	                              key_handler, 0);
	if (!r)
		r=event_register_wimp_handler(screen.window, wimp_REDRAW_WINDOW_REQUEST,
	                              redraw_handler, &screen);
	if (!r)
		r=event_register_wimp_handler(choice.window, wimp_REDRAW_WINDOW_REQUEST,
	                              redraw_handler, &choice);
	if (!r)
		r=event_register_wimp_handler(recall.window, wimp_REDRAW_WINDOW_REQUEST,
	                              redraw_handler, &recall);
	if (!r)
		r=event_register_wimp_handler(mirror.window, wimp_REDRAW_WINDOW_REQUEST,
	                              redraw_handler, &mirror);
	if (!r)
		r=event_register_wimp_handler(screen.window, wimp_GAIN_CARET,
	                              caret_handler, 0);
	if (!r)
		r=event_register_wimp_handler(screen.window, wimp_LOSE_CARET,
	                              caret_handler, 0);
	if (r)
		quit(r->errmess);

	atexit(final_acn);

	term_data_link(&screen, 256);

	term_data_link(&choice, 16);
	term_data_link(&recall, 16);
	term_data_link(&mirror, 16);

	if (toolbox_get_object_info(NONE, choice.window) & toolbox_INFO_SHOWING)
		term_choice=&choice.t;

	if (toolbox_get_object_info(NONE, recall.window) & toolbox_INFO_SHOWING)
		term_recall=&recall.t;

	if (toolbox_get_object_info(NONE, mirror.window) & toolbox_INFO_SHOWING)
		term_mirror=&mirror.t;

	/* Check initial palette */
	palette_handler(0, 0);

	term_screen=&screen.t;

	if (!e)
		e=Term_activate(&screen.t);

	if (e)
		return e;

	/* Poll until a null event - enables window to come up in time
	for status messages */
	event_set_mask(NONE);
	do
	{
		event_poll(&event, 0, 0);
	} while (event != wimp_NULL_REASON_CODE);

	event_set_mask(wimp_MASK_NULL |
	               wimp_MASK_LEAVING |
	               wimp_MASK_ENTERING |
	               wimp_MASK_POLLWORD |
	               wimp_MASK_ACKNOWLEDGE);

	return 0;
}


/*************************************************************
 *                                                           *
 *            Various Unix-like support routines for         *
 *                  the main Angband source                  *
 *                                                           *
 *************************************************************/

/* translate_name: translate a filename from file/data/k_list.raw form to
file.data.k_list/raw form.

This is necessary because the main source allows the separator to be
defined, but not the extension character.
 */

static const char *translate_name(const char *path)
{
	static char buffer[256];
	char c, *p;

	p=buffer;

	while (c=*path++)
	{
		switch (c)
		{
			case '/':
			*p++='.';
			break;
			case '.':
			*p++='/';
			break;
			default:
			*p++=c;
			break;
		}
	}
	*p='\0';

	/*
	 * Hackery - when saving a game, the old game is renamed as
	 * "SavedGame.old", the new one is saved as "SavedGame.new",
	 * "SavedGame.old" is deleted, "SavedGame.new" is renamed
	 * as "SavedGame". This will go majorly wrong if on a
	 * FileCore filing system (leafnames <= 10 chars), your
	 * saved game file has a leafname > 8 chars.
	 */
	if ((p=strstr(buffer, "/old")) || (p=strstr(buffer, "/new")))
	{
		char *q=strrchr(buffer, '.');

		if (q)
			if (p-q > 6)
				memmove(q+6, p, 5);

		_ftype=osfile_TYPE_ANGBAND;
	}
	else
		_ftype=osfile_TYPE_DATA;

	return buffer;
}



FILE *my_fopen(const char *filename, const char *mode)
{
	FILE *f;
	const char *name=translate_name(filename);

	f=fopen(name, mode);

	if (f && strstr(mode, "wb"))
		osfile_set_type(name, _ftype);

	return f;
}

errr my_fclose(FILE *fff)
{
	/* Close, check for error */
	if (fclose(fff)) return (1);

	/* Success */
	return (0);
}

int fd_make(cptr file, int mode)
{
	os_f f;
	os_error *e;
	const char *realpath=translate_name(file);

	e=xosfind_openout(osfind_ERROR_IF_DIR | osfind_ERROR_IF_ABSENT | osfind_NO_PATH,
	                  realpath, 0, &f);

	if (e || f==0)
		return -1;

	osfile_set_type(realpath, _ftype);

	/* if he opens >16 files, I can't be bothered to keep track */
	if (openfiles<16)
		filehandle[openfiles++]=f;

	return (int)f;
}

errr fd_kill(cptr file)
{
	return remove(translate_name(file)) ? 1 : 0;
}

errr fd_move(cptr file, cptr what)
{
	char buffer[256];

	/* Necessary because of single buffer inside translate_name */

	strcpy(buffer, translate_name(file));

	return rename(buffer, translate_name(what)) ? 1 : 0;
}

int fd_open(cptr path, int flags)
{
	os_f f;
	os_error *e;
	const char *realpath=translate_name(path);

	switch (flags & 0xF)
	{
		case O_RDONLY:
		e=xosfind_openin(osfind_ERROR_IF_DIR | osfind_ERROR_IF_ABSENT | osfind_NO_PATH,
		                 realpath, 0, &f);
		break;

		case O_WRONLY:
		case O_RDWR:
		e=xosfind_openup(osfind_ERROR_IF_DIR | osfind_ERROR_IF_ABSENT | osfind_NO_PATH,
		                 realpath, 0, &f);
		break;
	}

	if (e || f==0)
		return -1;

	/* if he opens >16 files, I can't be bothered to keep track */
	if (openfiles<16)
		filehandle[openfiles++]=f;

	return (int) f;
}

errr fd_close(int d)
{
	os_error *e;
	os_f f=(os_f) d;
	int i;

	if (d <= 0) return -1;

	e=xosfind_close(f);

	if (e)
		return 1;

	openfiles--;

	for (i=0; filehandle[i] != f; i++)
		;

	for (; i<openfiles; i++)
		filehandle[i]=filehandle[i+1];

	return 0;
}

/*int unlink(const char *path)
{
xosfile_delete(translate_name(path), 0, 0, 0, 0, 0);

return 0;
}*/

int access(const char *path, int mode)
{
	os_error *e;
	os_f f;

	e=xosfind_openin(osfind_ERROR_IF_DIR, translate_name(path), 0, &f);

	if (e || f==0)
		return -1;

	osfind_close(f);

	return 0;
}

errr fd_read(int d, char *buf, huge nbytes)
{
	os_error *e;
	int unread;

	if (d <= 0) return -1;

	e=xosgbpb_read((os_f) d, (byte *) buf, nbytes, &unread);

	if (e || unread)
		return 1;

	return 0;
}

errr fd_write(int d, const char *buf, huge nbytes)
{
	os_error *e;
	int unwritten;

	if (d <= 0) return -1;

	e=xosgbpb_write((os_f) d, (byte *) buf, nbytes, &unwritten);

	if (e || unwritten)
		return 1;

	return 0;
}

errr fd_seek(int fd, huge offset)
{
	os_error *e;

	if (fd < 0) return -1;

	e=xosargs_set_ptr((os_f) fd, (int) offset);
	if (e)
		return 1;

	return 0;
}

errr fd_lock(int fd, int what)
{
	return 0;
}

/*
 * Hack -- acquire a "temporary" file name if possible
 */
errr path_temp(char *buf, int max)
{
	strncpy(buf, translate_name(tmpnam(NULL)), max);

	return 0;
}

#endif /* __riscos */
