[u/mdw/putty] / unix / pterm.c

/*
 * pterm - a fusion of the PuTTY terminal emulator with a Unix pty
 * back end, all running as a GTK application. Wish me luck.
 */

#include <string.h>
#include <assert.h>
#include <stdlib.h>
#include <stdio.h>
#include <time.h>
#include <gtk/gtk.h>

#define PUTTY_DO_GLOBALS	       /* actually _define_ globals */
#include "putty.h"

#define CAT2(x,y) x ## y
#define CAT(x,y) CAT2(x,y)
#define ASSERT(x) enum {CAT(assertion_,__LINE__) = 1 / (x)}

#define NCOLOURS (lenof(((Config *)0)->colours))

struct gui_data {
    GtkWidget *area;
    GdkPixmap *pixmap;
    GdkFont *fonts[2];                 /* normal and bold (for now!) */
    GdkCursor *rawcursor, *textcursor;
    GdkColor cols[NCOLOURS];
    GdkColormap *colmap;
    GdkGC *black_gc, *white_gc;
};

static struct gui_data the_inst;
static struct gui_data *inst = &the_inst;   /* so we always write `inst->' */
static int send_raw_mouse;

void ldisc_update(int echo, int edit)
{
    /*
     * This is a stub in pterm. If I ever produce a Unix
     * command-line ssh/telnet/rlogin client (i.e. a port of plink)
     * then it will require some termios manoeuvring analogous to
     * that in the Windows plink.c, but here it's meaningless.
     */
}

int askappend(char *filename)
{
    /*
     * FIXME: for the moment we just wipe the log file. Since I
     * haven't yet enabled logging, this shouldn't matter yet!
     */
    return 2;
}

void logevent(char *string)
{
    /*
     * FIXME: event log entries are currently ignored.
     */
}

/*
 * Translate a raw mouse button designation (LEFT, MIDDLE, RIGHT)
 * into a cooked one (SELECT, EXTEND, PASTE).
 * 
 * In Unix, this is not configurable; the X button arrangement is
 * rock-solid across all applications, everyone has a three-button
 * mouse or a means of faking it, and there is no need to switch
 * buttons around at all.
 */
Mouse_Button translate_button(Mouse_Button button)
{
    if (button == MBT_LEFT)
	return MBT_SELECT;
    if (button == MBT_MIDDLE)
	return MBT_PASTE;
    if (button == MBT_RIGHT)
	return MBT_EXTEND;
    return 0;			       /* shouldn't happen */
}

/*
 * Minimise or restore the window in response to a server-side
 * request.
 */
void set_iconic(int iconic)
{
    /* FIXME: currently ignored */
}

/*
 * Move the window in response to a server-side request.
 */
void move_window(int x, int y)
{
    /* FIXME: currently ignored */
}

/*
 * Move the window to the top or bottom of the z-order in response
 * to a server-side request.
 */
void set_zorder(int top)
{
    /* FIXME: currently ignored */
}

/*
 * Refresh the window in response to a server-side request.
 */
void refresh_window(void)
{
    /* FIXME: currently ignored */
}

/*
 * Maximise or restore the window in response to a server-side
 * request.
 */
void set_zoomed(int zoomed)
{
    /* FIXME: currently ignored */
}

/*
 * Report whether the window is iconic, for terminal reports.
 */
int is_iconic(void)
{
    return 0;			       /* FIXME */
}

/*
 * Report the window's position, for terminal reports.
 */
void get_window_pos(int *x, int *y)
{
    *x = 3; *y = 4;		       /* FIXME */
}

/*
 * Report the window's pixel size, for terminal reports.
 */
void get_window_pixels(int *x, int *y)
{
    *x = 1; *y = 2;		       /* FIXME */
}

/*
 * Return the window or icon title.
 */
char *get_window_title(int icon)
{
    return "FIXME: window title retrieval not yet implemented";
}

gint delete_window(GtkWidget *widget, GdkEvent *event, gpointer data)
{
    /*
     * FIXME: warn on close?
     */
    return FALSE;
}

gint configure_area(GtkWidget *widget, GdkEventConfigure *event, gpointer data)
{
    struct gui_data *inst = (struct gui_data *)data;

    if (inst->pixmap)
	gdk_pixmap_unref(inst->pixmap);

    inst->pixmap = gdk_pixmap_new(widget->window, 9*80, 15*24, -1);

    inst->fonts[0] = gdk_font_load("9x15t");   /* XXCONFIG */
    inst->fonts[1] = NULL;             /* XXCONFIG */
    inst->black_gc = widget->style->black_gc;
    inst->white_gc = widget->style->white_gc;

    /*
     * Set up the colour map.
     */
    inst->colmap = gdk_colormap_get_system();
    {
	static const int ww[] = {
	    6, 7, 8, 9, 10, 11, 12, 13,
	    14, 15, 16, 17, 18, 19, 20, 21,
	    0, 1, 2, 3, 4, 5
	};
	gboolean success[NCOLOURS];
	int i;

	assert(lenof(ww) == NCOLOURS);

	for (i = 0; i < NCOLOURS; i++) {
	    inst->cols[i].red = cfg.colours[ww[i]][0] * 0x0101;
	    inst->cols[i].green = cfg.colours[ww[i]][1] * 0x0101;
	    inst->cols[i].blue = cfg.colours[ww[i]][2] * 0x0101;
	}

	gdk_colormap_alloc_colors(inst->colmap, inst->cols, NCOLOURS,
				  FALSE, FALSE, success);
	for (i = 0; i < NCOLOURS; i++) {
	    if (!success[i])
		g_error("pterm: couldn't allocate colour %d (#%02x%02x%02x)\n",
			i, cfg.colours[i][0], cfg.colours[i][1], cfg.colours[i][2]);
	}
    }

    return TRUE;
}

gint expose_area(GtkWidget *widget, GdkEventExpose *event, gpointer data)
{
    /* struct gui_data *inst = (struct gui_data *)data; */

    /*
     * Pass the exposed rectangle to terminal.c, which will call us
     * back to do the actual painting.
     */
    term_paint(NULL, 
	       event->area.x / 9, event->area.y / 15,
	       (event->area.x + event->area.width - 1) / 9,
	       (event->area.y + event->area.height - 1) / 15);
    return TRUE;
}

#define KEY_PRESSED(k) \
    (inst->keystate[(k) / 32] & (1 << ((k) % 32)))

gint key_event(GtkWidget *widget, GdkEventKey *event, gpointer data)
{
    /* struct gui_data *inst = (struct gui_data *)data; */

    if (event->type == GDK_KEY_PRESS) {
	ldisc_send(event->string, strlen(event->string), 1);
	term_out();
    }

    return TRUE;
}

gint timer_func(gpointer data)
{
    /* struct gui_data *inst = (struct gui_data *)data; */

    term_update();
    return TRUE;
}

void destroy(GtkWidget *widget, gpointer data)
{
    gtk_main_quit();
}

gint focus_event(GtkWidget *widget, GdkEventFocus *event, gpointer data)
{
    has_focus = event->in;
    term_out();
    term_update();
    return FALSE;
}

/*
 * set or clear the "raw mouse message" mode
 */
void set_raw_mouse_mode(int activate)
{
    activate = activate && !cfg.no_mouse_rep;
    send_raw_mouse = activate;
    if (send_raw_mouse)
	gdk_window_set_cursor(inst->area->window, inst->rawcursor);
    else
	gdk_window_set_cursor(inst->area->window, inst->textcursor);
}

void request_resize(int w, int h)
{
    /* FIXME: currently ignored */
}

void palette_set(int n, int r, int g, int b)
{
    /* FIXME: currently ignored */
}
void palette_reset(void)
{
    /* FIXME: currently ignored */
}

void write_clip(wchar_t * data, int len, int must_deselect)
{
    /* FIXME: currently ignored */
}

void get_clip(wchar_t ** p, int *len)
{
    if (p) {
	/* FIXME: currently nonfunctional */
	*p = NULL;
	*len = 0;
    }
}

void set_title(char *title)
{
    /* FIXME: currently ignored */
}

void set_icon(char *title)
{
    /* FIXME: currently ignored */
}

void set_sbar(int total, int start, int page)
{
    /* FIXME: currently ignored */
}

void sys_cursor(int x, int y)
{
    /*
     * This is meaningless under X.
     */
}

void beep(int mode)
{
    gdk_beep();
}

int CharWidth(Context ctx, int uc)
{
    /*
     * Under X, any fixed-width font really _is_ fixed-width.
     * Double-width characters will be dealt with using a separate
     * font. For the moment we can simply return 1.
     */
    return 1;
}

Context get_ctx(void)
{
    GdkGC *gc;
    if (!inst->area->window)
	return NULL;
    gc = gdk_gc_new(inst->area->window);
    return gc;
}

void free_ctx(Context ctx)
{
    GdkGC *gc = (GdkGC *)ctx;
    gdk_gc_unref(gc);
}

/*
 * Draw a line of text in the window, at given character
 * coordinates, in given attributes.
 *
 * We are allowed to fiddle with the contents of `text'.
 */
void do_text(Context ctx, int x, int y, char *text, int len,
	     unsigned long attr, int lattr)
{
    int nfg, nbg, t;
    GdkGC *gc = (GdkGC *)ctx;

    /*
     * NYI:
     *  - ATTR_WIDE (is this for Unicode CJK? I hope so)
     *  - LATTR_* (ESC # 4 double-width and double-height stuff)
     *  - cursor shapes other than block
     *  - VT100 line drawing stuff; code pages in general!
     *  - shadow bolding
     *  - underline
     */

    nfg = 2 * ((attr & ATTR_FGMASK) >> ATTR_FGSHIFT);
    nbg = 2 * ((attr & ATTR_BGMASK) >> ATTR_BGSHIFT);
    if (attr & ATTR_REVERSE) {
	t = nfg;
	nfg = nbg;
	nbg = t;
    }
    if (cfg.bold_colour && (attr & ATTR_BOLD))
	nfg++;
    if (cfg.bold_colour && (attr & ATTR_BLINK))
	nbg++;
    if (attr & TATTR_ACTCURS) {
	nfg = NCOLOURS-2;
	nbg = NCOLOURS-1;
    }

    gdk_gc_set_foreground(gc, &inst->cols[nbg]);
    gdk_draw_rectangle(inst->pixmap, gc, 1, x*9, y*15, len*9, 15);
    
    gdk_gc_set_foreground(gc, &inst->cols[nfg]);
    gdk_draw_text(inst->pixmap, inst->fonts[0], gc,
		  x*9, y*15 + inst->fonts[0]->ascent, text, len);

    if (attr & ATTR_UNDER) {
	int uheight = inst->fonts[0]->ascent + 1;
	if (uheight >= 15)
	    uheight = 14;
	gdk_draw_line(inst->pixmap, gc, x*9, y*15 + uheight,
		      (x+len)*9-1, y*15+uheight);
    }

    gdk_draw_pixmap(inst->area->window, gc, inst->pixmap,
		    x*9, y*15, x*9, y*15, len*9, 15);
}

void do_cursor(Context ctx, int x, int y, char *text, int len,
	       unsigned long attr, int lattr)
{
    int passive;
    GdkGC *gc = (GdkGC *)ctx;

    /*
     * NYI: cursor shapes other than block
     */
    if (attr & TATTR_PASCURS) {
	attr &= ~TATTR_PASCURS;
	passive = 1;
    } else
	passive = 0;
    do_text(ctx, x, y, text, len, attr, lattr);
    if (passive) {
	gdk_gc_set_foreground(gc, &inst->cols[NCOLOURS-1]);
	gdk_draw_rectangle(inst->pixmap, gc, 0, x*9, y*15, len*9-1, 15-1);
	gdk_draw_pixmap(inst->area->window, gc, inst->pixmap,
			x*9, y*15, x*9, y*15, len*9, 15);
    }
}

void modalfatalbox(char *p, ...)
{
    va_list ap;
    fprintf(stderr, "FATAL ERROR: ");
    va_start(ap, p);
    vfprintf(stderr, p, ap);
    va_end(ap);
    fputc('\n', stderr);
    exit(1);
}

int main(int argc, char **argv)
{
    GtkWidget *window;

    gtk_init(&argc, &argv);

    do_defaults(NULL, &cfg);

    init_ucs();

    back = &pty_backend;
    back->init(NULL, 0, NULL, 0);

    window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
    inst->area = gtk_drawing_area_new();
    gtk_drawing_area_size(GTK_DRAWING_AREA(inst->area),
			  9*80, 15*24);/* FIXME: proper resizing stuff */

    gtk_container_add(GTK_CONTAINER(window), inst->area);

    gtk_signal_connect(GTK_OBJECT(window), "destroy",
		       GTK_SIGNAL_FUNC(destroy), inst);
    gtk_signal_connect(GTK_OBJECT(window), "delete_event",
		       GTK_SIGNAL_FUNC(delete_window), inst);
    gtk_signal_connect(GTK_OBJECT(window), "key_press_event",
		       GTK_SIGNAL_FUNC(key_event), inst);
    gtk_signal_connect(GTK_OBJECT(window), "focus_in_event",
		       GTK_SIGNAL_FUNC(focus_event), inst);
    gtk_signal_connect(GTK_OBJECT(window), "focus_out_event",
		       GTK_SIGNAL_FUNC(focus_event), inst);
    gtk_signal_connect(GTK_OBJECT(inst->area), "configure_event",
		       GTK_SIGNAL_FUNC(configure_area), inst);
    gtk_signal_connect(GTK_OBJECT(inst->area), "expose_event",
		       GTK_SIGNAL_FUNC(expose_area), inst);
    gtk_timeout_add(20, timer_func, inst);
    gtk_widget_add_events(GTK_WIDGET(inst->area),
			  GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK);

    gtk_widget_show(inst->area);
    gtk_widget_show(window);

    inst->textcursor = gdk_cursor_new(GDK_XTERM);
    inst->rawcursor = gdk_cursor_new(GDK_ARROW);
    gdk_window_set_cursor(inst->area->window, inst->textcursor);

    term_init();
    term_size(24, 80, 2000);

    gtk_main();

    return 0;
}
Commit	Line	Data
f7f27309	1	/*
	2	* pterm - a fusion of the PuTTY terminal emulator with a Unix pty
	3	* back end, all running as a GTK application. Wish me luck.
	4	*/
	5
	6	#include <string.h>
d64838e1	7	#include <assert.h>
f7f27309	8	#include <stdlib.h>
1709795f	9	#include <stdio.h>
f7f27309	10	#include <time.h>
	11	#include <gtk/gtk.h>
	12
1709795f	13	#define PUTTY_DO_GLOBALS /* actually _define_ globals */
	14	#include "putty.h"
	15
f7f27309	16	#define CAT2(x,y) x ## y
	17	#define CAT(x,y) CAT2(x,y)
	18	#define ASSERT(x) enum {CAT(assertion_,__LINE__) = 1 / (x)}
	19
d64838e1	20	#define NCOLOURS (lenof(((Config *)0)->colours))
	21
	22	struct gui_data {
	23	GtkWidget *area;
	24	GdkPixmap *pixmap;
	25	GdkFont fonts[2]; / normal and bold (for now!) */
	26	GdkCursor rawcursor, textcursor;
	27	GdkColor cols[NCOLOURS];
	28	GdkColormap *colmap;
	29	GdkGC black_gc, white_gc;
	30	};
	31
	32	static struct gui_data the_inst;
	33	static struct gui_data inst = &the_inst; / so we always write `inst->' */
	34	static int send_raw_mouse;
	35
1709795f	36	void ldisc_update(int echo, int edit)
	37	{
	38	/*
	39	* This is a stub in pterm. If I ever produce a Unix
	40	* command-line ssh/telnet/rlogin client (i.e. a port of plink)
	41	* then it will require some termios manoeuvring analogous to
	42	* that in the Windows plink.c, but here it's meaningless.
	43	*/
	44	}
	45
	46	int askappend(char *filename)
	47	{
	48	/*
	49	* FIXME: for the moment we just wipe the log file. Since I
	50	* haven't yet enabled logging, this shouldn't matter yet!
	51	*/
	52	return 2;
	53	}
	54
	55	void logevent(char *string)
	56	{
	57	/*
	58	* FIXME: event log entries are currently ignored.
	59	*/
	60	}
	61
	62	/*
	63	* Translate a raw mouse button designation (LEFT, MIDDLE, RIGHT)
	64	* into a cooked one (SELECT, EXTEND, PASTE).
	65	*
	66	* In Unix, this is not configurable; the X button arrangement is
	67	* rock-solid across all applications, everyone has a three-button
	68	* mouse or a means of faking it, and there is no need to switch
	69	* buttons around at all.
	70	*/
	71	Mouse_Button translate_button(Mouse_Button button)
	72	{
	73	if (button == MBT_LEFT)
	74	return MBT_SELECT;
	75	if (button == MBT_MIDDLE)
	76	return MBT_PASTE;
	77	if (button == MBT_RIGHT)
	78	return MBT_EXTEND;
	79	return 0; /* shouldn't happen */
	80	}
	81
	82	/*
	83	* Minimise or restore the window in response to a server-side
	84	* request.
	85	*/
	86	void set_iconic(int iconic)
	87	{
	88	/* FIXME: currently ignored */
	89	}
	90
	91	/*
	92	* Move the window in response to a server-side request.
	93	*/
	94	void move_window(int x, int y)
	95	{
	96	/* FIXME: currently ignored */
	97	}
	98
	99	/*
100	* Move the window to the top or bottom of the z-order in response
101	* to a server-side request.
102	*/
103	void set_zorder(int top)
104	{
105	/* FIXME: currently ignored */
106	}
107
108	/*
109	* Refresh the window in response to a server-side request.
110	*/
111	void refresh_window(void)
112	{
113	/* FIXME: currently ignored */
114	}
115
116	/*
117	* Maximise or restore the window in response to a server-side
118	* request.
119	*/
120	void set_zoomed(int zoomed)
121	{
122	/* FIXME: currently ignored */
123	}
124
125	/*
126	* Report whether the window is iconic, for terminal reports.
127	*/
128	int is_iconic(void)
129	{
130	return 0; /* FIXME */
131	}
132
133	/*
134	* Report the window's position, for terminal reports.
135	*/
136	void get_window_pos(int x, int y)
137	{
138	x = 3; y = 4; /* FIXME */
139	}
140
141	/*
142	* Report the window's pixel size, for terminal reports.
143	*/
144	void get_window_pixels(int x, int y)
145	{
146	x = 1; y = 2; /* FIXME */
147	}
148
149	/*
150	* Return the window or icon title.
151	*/
152	char *get_window_title(int icon)
153	{
154	return "FIXME: window title retrieval not yet implemented";
155	}
f7f27309	156
f7f27309	157	gint delete_window(GtkWidget widget, GdkEvent event, gpointer data)
	158	{
	159	/*
	160	* FIXME: warn on close?
	161	*/
	162	return FALSE;
	163	}
	164
	165	gint configure_area(GtkWidget widget, GdkEventConfigure event, gpointer data)
	166	{
	167	struct gui_data inst = (struct gui_data )data;
	168
d64838e1	169	if (inst->pixmap)
	170	gdk_pixmap_unref(inst->pixmap);
	171
	172	inst->pixmap = gdk_pixmap_new(widget->window, 980, 1524, -1);
	173
f7f27309	174	inst->fonts[0] = gdk_font_load("9x15t"); /* XXCONFIG */
	175	inst->fonts[1] = NULL; /* XXCONFIG */
	176	inst->black_gc = widget->style->black_gc;
	177	inst->white_gc = widget->style->white_gc;
	178
f7f27309	179	/*
	180	* Set up the colour map.
	181	*/
	182	inst->colmap = gdk_colormap_get_system();
	183	{
d64838e1	184	static const int ww[] = {
	185	6, 7, 8, 9, 10, 11, 12, 13,
	186	14, 15, 16, 17, 18, 19, 20, 21,
	187	0, 1, 2, 3, 4, 5
f7f27309	188	};
d64838e1	189	gboolean success[NCOLOURS];
f7f27309	190	int i;
f7f27309	191
d64838e1	192	assert(lenof(ww) == NCOLOURS);
	193
	194	for (i = 0; i < NCOLOURS; i++) {
	195	inst->cols[i].red = cfg.colours[ww[i]][0] * 0x0101;
	196	inst->cols[i].green = cfg.colours[ww[i]][1] * 0x0101;
	197	inst->cols[i].blue = cfg.colours[ww[i]][2] * 0x0101;
f7f27309	198	}
f7f27309	199
d64838e1	200	gdk_colormap_alloc_colors(inst->colmap, inst->cols, NCOLOURS,
f7f27309	201	FALSE, FALSE, success);
d64838e1	202	for (i = 0; i < NCOLOURS; i++) {
f7f27309	203	if (!success[i])
d64838e1	204	g_error("pterm: couldn't allocate colour %d (#%02x%02x%02x)\n",
d64838e1	205	i, cfg.colours[i][0], cfg.colours[i][1], cfg.colours[i][2]);
f7f27309	206	}
f7f27309	207	}
f7f27309	208
	209	return TRUE;
	210	}
	211
	212	gint expose_area(GtkWidget widget, GdkEventExpose event, gpointer data)
	213	{
1709795f	214	/* struct gui_data inst = (struct gui_data )data; */
f7f27309	215
f7f27309	216	/*
1709795f	217	* Pass the exposed rectangle to terminal.c, which will call us
1709795f	218	* back to do the actual painting.
f7f27309	219	*/
1709795f	220	term_paint(NULL,
	221	event->area.x / 9, event->area.y / 15,
	222	(event->area.x + event->area.width - 1) / 9,
	223	(event->area.y + event->area.height - 1) / 15);
	224	return TRUE;
f7f27309	225	}
	226
	227	#define KEY_PRESSED(k) \
	228	(inst->keystate[(k) / 32] & (1 << ((k) % 32)))
	229
	230	gint key_event(GtkWidget widget, GdkEventKey event, gpointer data)
	231	{
1709795f	232	/* struct gui_data inst = (struct gui_data )data; */
f7f27309	233
1709795f	234	if (event->type == GDK_KEY_PRESS) {
d64838e1	235	ldisc_send(event->string, strlen(event->string), 1);
1709795f	236	term_out();
	237	}
	238
	239	return TRUE;
f7f27309	240	}
	241
	242	gint timer_func(gpointer data)
	243	{
1709795f	244	/* struct gui_data inst = (struct gui_data )data; */
f7f27309	245
1709795f	246	term_update();
f7f27309	247	return TRUE;
	248	}
	249
	250	void destroy(GtkWidget *widget, gpointer data)
	251	{
	252	gtk_main_quit();
	253	}
	254
	255	gint focus_event(GtkWidget widget, GdkEventFocus event, gpointer data)
	256	{
d64838e1	257	has_focus = event->in;
	258	term_out();
	259	term_update();
1709795f	260	return FALSE;
	261	}
	262
	263	/*
	264	* set or clear the "raw mouse message" mode
	265	*/
	266	void set_raw_mouse_mode(int activate)
	267	{
d64838e1	268	activate = activate && !cfg.no_mouse_rep;
	269	send_raw_mouse = activate;
	270	if (send_raw_mouse)
	271	gdk_window_set_cursor(inst->area->window, inst->rawcursor);
	272	else
	273	gdk_window_set_cursor(inst->area->window, inst->textcursor);
1709795f	274	}
	275
	276	void request_resize(int w, int h)
	277	{
	278	/* FIXME: currently ignored */
	279	}
	280
	281	void palette_set(int n, int r, int g, int b)
	282	{
	283	/* FIXME: currently ignored */
	284	}
	285	void palette_reset(void)
	286	{
	287	/* FIXME: currently ignored */
	288	}
	289
	290	void write_clip(wchar_t * data, int len, int must_deselect)
	291	{
	292	/* FIXME: currently ignored */
	293	}
	294
	295	void get_clip(wchar_t ** p, int *len)
	296	{
	297	if (p) {
	298	/* FIXME: currently nonfunctional */
	299	*p = NULL;
	300	*len = 0;
	301	}
	302	}
	303
	304	void set_title(char *title)
	305	{
	306	/* FIXME: currently ignored */
	307	}
	308
	309	void set_icon(char *title)
	310	{
	311	/* FIXME: currently ignored */
	312	}
	313
	314	void set_sbar(int total, int start, int page)
	315	{
	316	/* FIXME: currently ignored */
	317	}
	318
	319	void sys_cursor(int x, int y)
	320	{
	321	/*
	322	* This is meaningless under X.
	323	*/
	324	}
	325
	326	void beep(int mode)
	327	{
	328	gdk_beep();
	329	}
	330
	331	int CharWidth(Context ctx, int uc)
	332	{
	333	/*
	334	* Under X, any fixed-width font really _is_ fixed-width.
	335	* Double-width characters will be dealt with using a separate
	336	* font. For the moment we can simply return 1.
	337	*/
338	return 1;
339	}
340
341	Context get_ctx(void)
342	{
d64838e1	343	GdkGC *gc;
	344	if (!inst->area->window)
	345	return NULL;
	346	gc = gdk_gc_new(inst->area->window);
1709795f	347	return gc;
	348	}
	349
	350	void free_ctx(Context ctx)
	351	{
	352	GdkGC gc = (GdkGC )ctx;
	353	gdk_gc_unref(gc);
	354	}
	355
	356	/*
	357	* Draw a line of text in the window, at given character
	358	* coordinates, in given attributes.
	359	*
	360	* We are allowed to fiddle with the contents of `text'.
	361	*/
	362	void do_text(Context ctx, int x, int y, char *text, int len,
	363	unsigned long attr, int lattr)
	364	{
d64838e1	365	int nfg, nbg, t;
1709795f	366	GdkGC gc = (GdkGC )ctx;
1709795f	367
d64838e1	368	/*
	369	* NYI:
	370	* - ATTR_WIDE (is this for Unicode CJK? I hope so)
	371	* - LATTR_* (ESC # 4 double-width and double-height stuff)
	372	* - cursor shapes other than block
	373	* - VT100 line drawing stuff; code pages in general!
	374	* - shadow bolding
	375	* - underline
	376	*/
	377
	378	nfg = 2 * ((attr & ATTR_FGMASK) >> ATTR_FGSHIFT);
	379	nbg = 2 * ((attr & ATTR_BGMASK) >> ATTR_BGSHIFT);
	380	if (attr & ATTR_REVERSE) {
	381	t = nfg;
	382	nfg = nbg;
	383	nbg = t;
	384	}
	385	if (cfg.bold_colour && (attr & ATTR_BOLD))
	386	nfg++;
	387	if (cfg.bold_colour && (attr & ATTR_BLINK))
	388	nbg++;
	389	if (attr & TATTR_ACTCURS) {
	390	nfg = NCOLOURS-2;
	391	nbg = NCOLOURS-1;
	392	}
	393
	394	gdk_gc_set_foreground(gc, &inst->cols[nbg]);
	395	gdk_draw_rectangle(inst->pixmap, gc, 1, x9, y15, len*9, 15);
	396
	397	gdk_gc_set_foreground(gc, &inst->cols[nfg]);
	398	gdk_draw_text(inst->pixmap, inst->fonts[0], gc,
1709795f	399	x9, y15 + inst->fonts[0]->ascent, text, len);
d64838e1	400
	401	if (attr & ATTR_UNDER) {
	402	int uheight = inst->fonts[0]->ascent + 1;
	403	if (uheight >= 15)
	404	uheight = 14;
	405	gdk_draw_line(inst->pixmap, gc, x9, y15 + uheight,
	406	(x+len)9-1, y15+uheight);
	407	}
	408
	409	gdk_draw_pixmap(inst->area->window, gc, inst->pixmap,
	410	x9, y15, x9, y15, len*9, 15);
1709795f	411	}
	412
	413	void do_cursor(Context ctx, int x, int y, char *text, int len,
	414	unsigned long attr, int lattr)
	415	{
d64838e1	416	int passive;
	417	GdkGC gc = (GdkGC )ctx;
	418
	419	/*
	420	* NYI: cursor shapes other than block
	421	*/
1709795f	422	if (attr & TATTR_PASCURS) {
1709795f	423	attr &= ~TATTR_PASCURS;
d64838e1	424	passive = 1;
	425	} else
	426	passive = 0;
1709795f	427	do_text(ctx, x, y, text, len, attr, lattr);
d64838e1	428	if (passive) {
	429	gdk_gc_set_foreground(gc, &inst->cols[NCOLOURS-1]);
	430	gdk_draw_rectangle(inst->pixmap, gc, 0, x9, y15, len*9-1, 15-1);
	431	gdk_draw_pixmap(inst->area->window, gc, inst->pixmap,
	432	x9, y15, x9, y15, len*9, 15);
	433	}
1709795f	434	}
	435
	436	void modalfatalbox(char *p, ...)
	437	{
	438	va_list ap;
	439	fprintf(stderr, "FATAL ERROR: ");
	440	va_start(ap, p);
	441	vfprintf(stderr, p, ap);
	442	va_end(ap);
	443	fputc('\n', stderr);
	444	exit(1);
f7f27309	445	}
	446
	447	int main(int argc, char **argv)
	448	{
	449	GtkWidget *window;
f7f27309	450
	451	gtk_init(&argc, &argv);
	452
1709795f	453	do_defaults(NULL, &cfg);
	454
	455	init_ucs();
	456
	457	back = &pty_backend;
	458	back->init(NULL, 0, NULL, 0);
	459
f7f27309	460	window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
	461	inst->area = gtk_drawing_area_new();
	462	gtk_drawing_area_size(GTK_DRAWING_AREA(inst->area),
	463	980, 1524);/* FIXME: proper resizing stuff */
	464
	465	gtk_container_add(GTK_CONTAINER(window), inst->area);
	466
	467	gtk_signal_connect(GTK_OBJECT(window), "destroy",
	468	GTK_SIGNAL_FUNC(destroy), inst);
	469	gtk_signal_connect(GTK_OBJECT(window), "delete_event",
	470	GTK_SIGNAL_FUNC(delete_window), inst);
	471	gtk_signal_connect(GTK_OBJECT(window), "key_press_event",
	472	GTK_SIGNAL_FUNC(key_event), inst);
f7f27309	473	gtk_signal_connect(GTK_OBJECT(window), "focus_in_event",
	474	GTK_SIGNAL_FUNC(focus_event), inst);
	475	gtk_signal_connect(GTK_OBJECT(window), "focus_out_event",
	476	GTK_SIGNAL_FUNC(focus_event), inst);
	477	gtk_signal_connect(GTK_OBJECT(inst->area), "configure_event",
	478	GTK_SIGNAL_FUNC(configure_area), inst);
	479	gtk_signal_connect(GTK_OBJECT(inst->area), "expose_event",
	480	GTK_SIGNAL_FUNC(expose_area), inst);
	481	gtk_timeout_add(20, timer_func, inst);
	482	gtk_widget_add_events(GTK_WIDGET(inst->area),
	483	GDK_KEY_PRESS_MASK \| GDK_KEY_RELEASE_MASK);
	484
	485	gtk_widget_show(inst->area);
	486	gtk_widget_show(window);
	487
d64838e1	488	inst->textcursor = gdk_cursor_new(GDK_XTERM);
	489	inst->rawcursor = gdk_cursor_new(GDK_ARROW);
	490	gdk_window_set_cursor(inst->area->window, inst->textcursor);
	491
1709795f	492	term_init();
	493	term_size(24, 80, 2000);
	494
f7f27309	495	gtk_main();
	496
	497	return 0;
	498	}