mdw@git.distorted.org.uk Git - sgt/putty/blob - unix/pterm.c

   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>
   7 #include <assert.h>
   8 #include <stdlib.h>
   9 #include <stdio.h>
  10 #include <time.h>
  11 #include <gtk/gtk.h>
  12
  13 #define PUTTY_DO_GLOBALS               /* actually _define_ globals */
  14 #include "putty.h"
  15
  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
  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
  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 }
 156
 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
 169     if (inst->pixmap)
 170         gdk_pixmap_unref(inst->pixmap);
 171
 172     inst->pixmap = gdk_pixmap_new(widget->window, 9*80, 15*24, -1);
 173
 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
 179     /*
 180      * Set up the colour map.
 181      */
 182     inst->colmap = gdk_colormap_get_system();
 183     {
 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
 188         };
 189         gboolean success[NCOLOURS];
 190         int i;
 191
 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;
 198         }
 199
 200         gdk_colormap_alloc_colors(inst->colmap, inst->cols, NCOLOURS,
 201                                   FALSE, FALSE, success);
 202         for (i = 0; i < NCOLOURS; i++) {
 203             if (!success[i])
 204                 g_error("pterm: couldn't allocate colour %d (#%02x%02x%02x)\n",
 205                         i, cfg.colours[i][0], cfg.colours[i][1], cfg.colours[i][2]);
 206         }
 207     }
 208
 209     return TRUE;
 210 }
 211
 212 gint expose_area(GtkWidget *widget, GdkEventExpose *event, gpointer data)
 213 {
 214     /* struct gui_data *inst = (struct gui_data *)data; */
 215
 216     /*
 217      * Pass the exposed rectangle to terminal.c, which will call us
 218      * back to do the actual painting.
 219      */
 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;
 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 {
 232     /* struct gui_data *inst = (struct gui_data *)data; */
 233
 234     if (event->type == GDK_KEY_PRESS) {
 235         ldisc_send(event->string, strlen(event->string), 1);
 236         term_out();
 237     }
 238
 239     return TRUE;
 240 }
 241
 242 gint timer_func(gpointer data)
 243 {
 244     /* struct gui_data *inst = (struct gui_data *)data; */
 245
 246     term_update();
 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 {
 257     has_focus = event->in;
 258     term_out();
 259     term_update();
 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 {
 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);
 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 {
 343     GdkGC *gc;
 344     if (!inst->area->window)
 345         return NULL;
 346     gc = gdk_gc_new(inst->area->window);
 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 {
 365     int nfg, nbg, t;
 366     GdkGC *gc = (GdkGC *)ctx;
 367
 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, x*9, y*15, len*9, 15);
 396
 397     gdk_gc_set_foreground(gc, &inst->cols[nfg]);
 398     gdk_draw_text(inst->pixmap, inst->fonts[0], gc,
 399                   x*9, y*15 + inst->fonts[0]->ascent, text, len);
 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, x*9, y*15 + uheight,
 406                       (x+len)*9-1, y*15+uheight);
 407     }
 408
 409     gdk_draw_pixmap(inst->area->window, gc, inst->pixmap,
 410                     x*9, y*15, x*9, y*15, len*9, 15);
 411 }
 412
 413 void do_cursor(Context ctx, int x, int y, char *text, int len,
 414                unsigned long attr, int lattr)
 415 {
 416     int passive;
 417     GdkGC *gc = (GdkGC *)ctx;
 418
 419     /*
 420      * NYI: cursor shapes other than block
 421      */
 422     if (attr & TATTR_PASCURS) {
 423         attr &= ~TATTR_PASCURS;
 424         passive = 1;
 425     } else
 426         passive = 0;
 427     do_text(ctx, x, y, text, len, attr, lattr);
 428     if (passive) {
 429         gdk_gc_set_foreground(gc, &inst->cols[NCOLOURS-1]);
 430         gdk_draw_rectangle(inst->pixmap, gc, 0, x*9, y*15, len*9-1, 15-1);
 431         gdk_draw_pixmap(inst->area->window, gc, inst->pixmap,
 432                         x*9, y*15, x*9, y*15, len*9, 15);
 433     }
 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);
 445 }
 446
 447 int main(int argc, char **argv)
 448 {
 449     GtkWidget *window;
 450
 451     gtk_init(&argc, &argv);
 452
 453     do_defaults(NULL, &cfg);
 454
 455     init_ucs();
 456
 457     back = &pty_backend;
 458     back->init(NULL, 0, NULL, 0);
 459
 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                           9*80, 15*24);/* 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);
 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
 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
 492     term_init();
 493     term_size(24, 80, 2000);
 494
 495     gtk_main();
 496
 497     return 0;
 498 }