src/draw-context.cpp

   1 #define __SP_DRAW_CONTEXT_C__
   2
   3 /*
   4  * Generic drawing context
   5  *
   6  * Author:
   7  *   Lauris Kaplinski <lauris@kaplinski.com>
   8  *
   9  * Copyright (C) 2000 Lauris Kaplinski
  10  * Copyright (C) 2000-2001 Ximian, Inc.
  11  * Copyright (C) 2002 Lauris Kaplinski
  12  *
  13  * Released under GNU GPL, read the file 'COPYING' for more information
  14  */
  15
  16 #define DRAW_VERBOSE
  17
  18 #ifdef HAVE_CONFIG_H
  19 # include "config.h"
  20 #endif
  21 #include <gdk/gdkkeysyms.h>
  22
  23 #include "display/canvas-bpath.h"
  24 #include "xml/repr.h"
  25 #include "svg/svg.h"
  26 #include <glibmm/i18n.h>
  27 #include "libnr/n-art-bpath.h"
  28 #include "desktop.h"
  29 #include "desktop-affine.h"
  30 #include "desktop-handles.h"
  31 #include "desktop-style.h"
  32 #include "document.h"
  33 #include "draw-anchor.h"
  34 #include "macros.h"
  35 #include "message-stack.h"
  36 #include "pen-context.h"
  37 #include "prefs-utils.h"
  38 #include "selection.h"
  39 #include "selection-chemistry.h"
  40 #include "snap.h"
  41 #include "sp-path.h"
  42 #include "sp-namedview.h"
  43
  44 static void sp_draw_context_class_init(SPDrawContextClass *klass);
  45 static void sp_draw_context_init(SPDrawContext *dc);
  46 static void sp_draw_context_dispose(GObject *object);
  47
  48 static void sp_draw_context_setup(SPEventContext *ec);
  49 static void sp_draw_context_set(SPEventContext *ec, gchar const *key, gchar const *value);
  50 static void sp_draw_context_finish(SPEventContext *ec);
  51
  52 static gint sp_draw_context_root_handler(SPEventContext *event_context, GdkEvent *event);
  53
  54 static void spdc_selection_changed(Inkscape::Selection *sel, SPDrawContext *dc);
  55 static void spdc_selection_modified(Inkscape::Selection *sel, guint flags, SPDrawContext *dc);
  56
  57 static void spdc_attach_selection(SPDrawContext *dc, Inkscape::Selection *sel);
  58
  59 static void spdc_flush_white(SPDrawContext *dc, SPCurve *gc);
  60
  61 static void spdc_reset_white(SPDrawContext *dc);
  62 static void spdc_free_colors(SPDrawContext *dc);
  63
  64
  65 static SPEventContextClass *draw_parent_class;
  66
  67
  68 GType
  69 sp_draw_context_get_type(void)
  70 {
  71     static GType type = 0;
  72     if (!type) {
  73         GTypeInfo info = {
  74             sizeof(SPDrawContextClass),
  75             NULL, NULL,
  76             (GClassInitFunc) sp_draw_context_class_init,
  77             NULL, NULL,
  78             sizeof(SPDrawContext),
  79             4,
  80             (GInstanceInitFunc) sp_draw_context_init,
  81             NULL,   /* value_table */
  82         };
  83         type = g_type_register_static(SP_TYPE_EVENT_CONTEXT, "SPDrawContext", &info, (GTypeFlags)0);
  84     }
  85     return type;
  86 }
  87
  88 static void
  89 sp_draw_context_class_init(SPDrawContextClass *klass)
  90 {
  91     GObjectClass *object_class;
  92     SPEventContextClass *ec_class;
  93
  94     object_class = (GObjectClass *)klass;
  95     ec_class = (SPEventContextClass *) klass;
  96
  97     draw_parent_class = (SPEventContextClass*)g_type_class_peek_parent(klass);
  98
  99     object_class->dispose = sp_draw_context_dispose;
 100
 101     ec_class->setup = sp_draw_context_setup;
 102     ec_class->set = sp_draw_context_set;
 103     ec_class->finish = sp_draw_context_finish;
 104     ec_class->root_handler = sp_draw_context_root_handler;
 105 }
 106
 107 static void
 108 sp_draw_context_init(SPDrawContext *dc)
 109 {
 110     dc->attach = FALSE;
 111
 112     dc->red_color = 0xff00007f;
 113     dc->blue_color = 0x0000ff7f;
 114     dc->green_color = 0x00ff007f;
 115     dc->red_curve_is_valid = false;
 116
 117     new (&dc->sel_changed_connection) sigc::connection();
 118     new (&dc->sel_modified_connection) sigc::connection();
 119 }
 120
 121 static void
 122 sp_draw_context_dispose(GObject *object)
 123 {
 124     SPDrawContext *dc = SP_DRAW_CONTEXT(object);
 125
 126     dc->sel_changed_connection.~connection();
 127     dc->sel_modified_connection.~connection();
 128
 129     if (dc->grab) {
 130         sp_canvas_item_ungrab(dc->grab, GDK_CURRENT_TIME);
 131         dc->grab = NULL;
 132     }
 133
 134     if (dc->selection) {
 135         dc->selection = NULL;
 136     }
 137
 138     spdc_free_colors(dc);
 139
 140     G_OBJECT_CLASS(draw_parent_class)->dispose(object);
 141 }
 142
 143 static void
 144 sp_draw_context_setup(SPEventContext *ec)
 145 {
 146     SPDrawContext *dc = SP_DRAW_CONTEXT(ec);
 147     SPDesktop *dt = ec->desktop;
 148
 149     if (((SPEventContextClass *) draw_parent_class)->setup) {
 150         ((SPEventContextClass *) draw_parent_class)->setup(ec);
 151     }
 152
 153     dc->selection = sp_desktop_selection(dt);
 154
 155     /* Connect signals to track selection changes */
 156     dc->sel_changed_connection = dc->selection->connectChanged(
 157         sigc::bind(sigc::ptr_fun(&spdc_selection_changed), dc)
 158     );
 159     dc->sel_modified_connection = dc->selection->connectModified(
 160         sigc::bind(sigc::ptr_fun(&spdc_selection_modified), dc)
 161     );
 162
 163     /* Create red bpath */
 164     dc->red_bpath = sp_canvas_bpath_new(sp_desktop_sketch(ec->desktop), NULL);
 165     sp_canvas_bpath_set_stroke(SP_CANVAS_BPATH(dc->red_bpath), dc->red_color, 1.0, SP_STROKE_LINEJOIN_MITER, SP_STROKE_LINECAP_BUTT);
 166     /* Create red curve */
 167     dc->red_curve = sp_curve_new_sized(4);
 168
 169     /* Create blue bpath */
 170     dc->blue_bpath = sp_canvas_bpath_new(sp_desktop_sketch(ec->desktop), NULL);
 171     sp_canvas_bpath_set_stroke(SP_CANVAS_BPATH(dc->blue_bpath), dc->blue_color, 1.0, SP_STROKE_LINEJOIN_MITER, SP_STROKE_LINECAP_BUTT);
 172     /* Create blue curve */
 173     dc->blue_curve = sp_curve_new_sized(8);
 174
 175     /* Create green curve */
 176     dc->green_curve = sp_curve_new_sized(64);
 177     /* No green anchor by default */
 178     dc->green_anchor = NULL;
 179     dc->green_closed = FALSE;
 180
 181     dc->attach = TRUE;
 182     spdc_attach_selection(dc, dc->selection);
 183 }
 184
 185 static void
 186 sp_draw_context_finish(SPEventContext *ec)
 187 {
 188     SPDrawContext *dc = SP_DRAW_CONTEXT(ec);
 189
 190     dc->sel_changed_connection.disconnect();
 191     dc->sel_modified_connection.disconnect();
 192
 193     if (dc->grab) {
 194         sp_canvas_item_ungrab(dc->grab, GDK_CURRENT_TIME);
 195     }
 196
 197     if (dc->selection) {
 198         dc->selection = NULL;
 199     }
 200
 201     spdc_free_colors(dc);
 202 }
 203
 204 static void
 205 sp_draw_context_set(SPEventContext *ec, const gchar *key, const gchar *value)
 206 {
 207 }
 208
 209 gint
 210 sp_draw_context_root_handler(SPEventContext *ec, GdkEvent *event)
 211 {
 212     gint ret = FALSE;
 213
 214     switch (event->type) {
 215         case GDK_KEY_PRESS:
 216             switch (get_group0_keyval (&event->key)) {
 217                 case GDK_Up:
 218                 case GDK_Down:
 219                 case GDK_KP_Up:
 220                 case GDK_KP_Down:
 221                     // prevent the zoom field from activation
 222                     if (!MOD__CTRL_ONLY) {
 223                         ret = TRUE;
 224                     }
 225                     break;
 226                 default:
 227             break;
 228         }
 229         break;
 230     default:
 231         break;
 232     }
 233
 234     if (!ret) {
 235         if (((SPEventContextClass *) draw_parent_class)->root_handler) {
 236             ret = ((SPEventContextClass *) draw_parent_class)->root_handler(ec, event);
 237         }
 238     }
 239
 240     return ret;
 241 }
 242
 243
 244 /*
 245  * Selection handlers
 246  */
 247
 248 static void
 249 spdc_selection_changed(Inkscape::Selection *sel, SPDrawContext *dc)
 250 {
 251     if (dc->attach) {
 252         spdc_attach_selection(dc, sel);
 253     }
 254 }
 255
 256 /* fixme: We have to ensure this is not delayed (Lauris) */
 257
 258 static void
 259 spdc_selection_modified(Inkscape::Selection *sel, guint flags, SPDrawContext *dc)
 260 {
 261     if (dc->attach) {
 262         spdc_attach_selection(dc, sel);
 263     }
 264 }
 265
 266 static void
 267 spdc_attach_selection(SPDrawContext *dc, Inkscape::Selection *sel)
 268 {
 269     /* We reset white and forget white/start/end anchors */
 270     spdc_reset_white(dc);
 271     dc->sa = NULL;
 272     dc->ea = NULL;
 273
 274     SPItem *item = dc->selection ? dc->selection->singleItem() : NULL;
 275
 276     if ( item && SP_IS_PATH(item) ) {
 277         /* Create new white data */
 278         /* Item */
 279         dc->white_item = item;
 280         /* Curve list */
 281         /* We keep it in desktop coordinates to eliminate calculation errors */
 282         SPCurve *norm = sp_shape_get_curve(SP_SHAPE(item));
 283         sp_curve_transform(norm, sp_item_i2d_affine(dc->white_item));
 284         g_return_if_fail( norm != NULL );
 285         dc->white_curves = g_slist_reverse(sp_curve_split(norm));
 286         sp_curve_unref(norm);
 287         /* Anchor list */
 288         for (GSList *l = dc->white_curves; l != NULL; l = l->next) {
 289             SPCurve *c;
 290             c = (SPCurve*)l->data;
 291             g_return_if_fail( c->end > 1 );
 292             if ( SP_CURVE_BPATH(c)->code == NR_MOVETO_OPEN ) {
 293                 NArtBpath *s, *e;
 294                 SPDrawAnchor *a;
 295                 s = sp_curve_first_bpath(c);
 296                 e = sp_curve_last_bpath(c);
 297                 a = sp_draw_anchor_new(dc, c, TRUE, NR::Point(s->x3, s->y3));
 298                 dc->white_anchors = g_slist_prepend(dc->white_anchors, a);
 299                 a = sp_draw_anchor_new(dc, c, FALSE, NR::Point(e->x3, e->y3));
 300                 dc->white_anchors = g_slist_prepend(dc->white_anchors, a);
 301             }
 302         }
 303         /* fixme: recalculate active anchor? */
 304     }
 305 }
 306
 307
 308 /**
 309  *  Snaps node or handle to PI/rotationsnapsperpi degree increments.
 310  *
 311  *  \param dc draw context
 312  *  \param p cursor point (to be changed by snapping)
 313  *  \param o origin point
 314  *  \param state  keyboard state to check if ctrl was pressed
 315 */
 316
 317 void spdc_endpoint_snap_rotation(SPEventContext const *const ec, NR::Point &p, NR::Point const o,
 318                                  guint state)
 319 {
 320     /* Control must be down for this snap to work */
 321     if ((state & GDK_CONTROL_MASK) == 0) {
 322         return;
 323     }
 324
 325     unsigned const snaps = abs(prefs_get_int_attribute("options.rotationsnapsperpi", "value", 12));
 326     /* 0 means no snapping. */
 327
 328     /* mirrored by fabs, so this corresponds to 15 degrees */
 329     NR::Point best; /* best solution */
 330     double bn = NR_HUGE; /* best normal */
 331     double bdot = 0;
 332     NR::Point v = NR::Point(0, 1);
 333     double const r00 = cos(M_PI / snaps), r01 = sin(M_PI / snaps);
 334     double const r10 = -r01, r11 = r00;
 335
 336     NR::Point delta = p - o;
 337
 338     for (unsigned i = 0; i < snaps; i++) {
 339         double const ndot = fabs(dot(v,NR::rot90(delta)));
 340         NR::Point t(r00*v[NR::X] + r01*v[NR::Y],
 341                     r10*v[NR::X] + r11*v[NR::Y]);
 342         if (ndot < bn) {
 343             /* I think it is better numerically to use the normal, rather than the dot product
 344              * to assess solutions, but I haven't proven it. */
 345             bn = ndot;
 346             best = v;
 347             bdot = dot(v, delta);
 348         }
 349         v = t;
 350     }
 351
 352     if (fabs(bdot) > 0) {
 353         p = o + bdot * best;
 354
 355         /* Snap it along best vector */
 356         SnapManager const &m = SP_EVENT_CONTEXT_DESKTOP(ec)->namedview->snap_manager;
 357         p = m.constrainedSnap(Inkscape::Snapper::SNAP_POINT | Inkscape::Snapper::BBOX_POINT,
 358                               p, Inkscape::Snapper::ConstraintLine(best), NULL).getPoint();
 359     }
 360 }
 361
 362
 363 void spdc_endpoint_snap_free(SPEventContext const * const ec, NR::Point& p, guint const state)
 364 {
 365     /* Shift disables this snap */
 366     if (state & GDK_SHIFT_MASK) {
 367         return;
 368     }
 369
 370     /* FIXME: this should be doing bbox snap as well */
 371     SnapManager const &m = SP_EVENT_CONTEXT_DESKTOP(ec)->namedview->snap_manager;
 372     p = m.freeSnap(Inkscape::Snapper::BBOX_POINT | Inkscape::Snapper::SNAP_POINT, p, NULL).getPoint();
 373 }
 374
 375 static SPCurve *
 376 reverse_then_unref(SPCurve *orig)
 377 {
 378     SPCurve *ret = sp_curve_reverse(orig);
 379     sp_curve_unref(orig);
 380     return ret;
 381 }
 382
 383 /**
 384  * Concats red, blue and green.
 385  * If any anchors are defined, process these, optionally removing curves from white list
 386  * Invoke _flush_white to write result back to object.
 387  */
 388 void
 389 spdc_concat_colors_and_flush(SPDrawContext *dc, gboolean forceclosed)
 390 {
 391     /* Concat RBG */
 392     SPCurve *c = dc->green_curve;
 393
 394     /* Green */
 395     dc->green_curve = sp_curve_new_sized(64);
 396     while (dc->green_bpaths) {
 397         gtk_object_destroy(GTK_OBJECT(dc->green_bpaths->data));
 398         dc->green_bpaths = g_slist_remove(dc->green_bpaths, dc->green_bpaths->data);
 399     }
 400     /* Blue */
 401     sp_curve_append_continuous(c, dc->blue_curve, 0.0625);
 402     sp_curve_reset(dc->blue_curve);
 403     sp_canvas_bpath_set_bpath(SP_CANVAS_BPATH(dc->blue_bpath), NULL);
 404     /* Red */
 405     if (dc->red_curve_is_valid) {
 406         sp_curve_append_continuous(c, dc->red_curve, 0.0625);
 407     }
 408     sp_curve_reset(dc->red_curve);
 409     sp_canvas_bpath_set_bpath(SP_CANVAS_BPATH(dc->red_bpath), NULL);
 410
 411     if (sp_curve_empty(c)) {
 412         sp_curve_unref(c);
 413         return;
 414     }
 415
 416     /* Step A - test, whether we ended on green anchor */
 417     if ( forceclosed || ( dc->green_anchor && dc->green_anchor->active ) ) {
 418         // We hit green anchor, closing Green-Blue-Red
 419         SP_EVENT_CONTEXT_DESKTOP(dc)->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("Path is closed."));
 420         sp_curve_closepath_current(c);
 421         /* Closed path, just flush */
 422         spdc_flush_white(dc, c);
 423         sp_curve_unref(c);
 424         return;
 425     }
 426
 427     /* Step B - both start and end anchored to same curve */
 428     if ( dc->sa && dc->ea
 429          && ( dc->sa->curve == dc->ea->curve )
 430          && ( ( dc->sa != dc->ea )
 431               || dc->sa->curve->closed ) )
 432     {
 433         // We hit bot start and end of single curve, closing paths
 434         SP_EVENT_CONTEXT_DESKTOP(dc)->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("Closing path."));
 435         if (dc->sa->start && !(dc->sa->curve->closed) ) {
 436             c = reverse_then_unref(c);
 437         }
 438         sp_curve_append_continuous(dc->sa->curve, c, 0.0625);
 439         sp_curve_unref(c);
 440         sp_curve_closepath_current(dc->sa->curve);
 441         spdc_flush_white(dc, NULL);
 442         return;
 443     }
 444
 445     /* Step C - test start */
 446     if (dc->sa) {
 447         SPCurve *s = dc->sa->curve;
 448         dc->white_curves = g_slist_remove(dc->white_curves, s);
 449         if (dc->sa->start) {
 450             s = reverse_then_unref(s);
 451         }
 452         sp_curve_append_continuous(s, c, 0.0625);
 453         sp_curve_unref(c);
 454         c = s;
 455     } else /* Step D - test end */ if (dc->ea) {
 456         SPCurve *e = dc->ea->curve;
 457         dc->white_curves = g_slist_remove(dc->white_curves, e);
 458         if (!dc->ea->start) {
 459             e = reverse_then_unref(e);
 460         }
 461         sp_curve_append_continuous(c, e, 0.0625);
 462         sp_curve_unref(e);
 463     }
 464
 465
 466     spdc_flush_white(dc, c);
 467
 468     sp_curve_unref(c);
 469 }
 470
 471 static char const *
 472 tool_name(SPDrawContext *dc)
 473 {
 474     return ( SP_IS_PEN_CONTEXT(dc)
 475              ? "tools.freehand.pen"
 476              : "tools.freehand.pencil" );
 477 }
 478
 479 /*
 480  * Flushes white curve(s) and additional curve into object
 481  *
 482  * No cleaning of colored curves - this has to be done by caller
 483  * No rereading of white data, so if you cannot rely on ::modified, do it in caller
 484  *
 485  */
 486
 487 static void
 488 spdc_flush_white(SPDrawContext *dc, SPCurve *gc)
 489 {
 490     SPCurve *c;
 491
 492     if (dc->white_curves) {
 493         g_assert(dc->white_item);
 494         c = sp_curve_concat(dc->white_curves);
 495         g_slist_free(dc->white_curves);
 496         dc->white_curves = NULL;
 497         if (gc) {
 498             sp_curve_append(c, gc, FALSE);
 499         }
 500     } else if (gc) {
 501         c = gc;
 502         sp_curve_ref(c);
 503     } else {
 504         return;
 505     }
 506
 507     /* Now we have to go back to item coordinates at last */
 508     sp_curve_transform(c, ( dc->white_item
 509                             ? sp_item_dt2i_affine(dc->white_item)
 510                             : sp_desktop_dt2root_affine(SP_EVENT_CONTEXT_DESKTOP(dc)) ));
 511
 512     SPDesktop *desktop = SP_EVENT_CONTEXT_DESKTOP(dc);
 513     SPDocument *doc = sp_desktop_document(desktop);
 514     Inkscape::XML::Document *xml_doc = sp_document_repr_doc(doc);
 515
 516     if ( c && !sp_curve_empty(c) ) {
 517         /* We actually have something to write */
 518
 519         Inkscape::XML::Node *repr;
 520         if (dc->white_item) {
 521             repr = SP_OBJECT_REPR(dc->white_item);
 522         } else {
 523             repr = xml_doc->createElement("svg:path");
 524             /* Set style */
 525             sp_desktop_apply_style_tool(desktop, repr, tool_name(dc), false);
 526         }
 527
 528         gchar *str = sp_svg_write_path(SP_CURVE_BPATH(c));
 529         g_assert( str != NULL );
 530         repr->setAttribute("d", str);
 531         g_free(str);
 532
 533         if (!dc->white_item) {
 534             /* Attach repr */
 535             SPItem *item = SP_ITEM(desktop->currentLayer()->appendChildRepr(repr));
 536             dc->selection->set(repr);
 537             Inkscape::GC::release(repr);
 538             item->transform = i2i_affine(desktop->currentRoot(), desktop->currentLayer());
 539             item->updateRepr();
 540         }
 541
 542         sp_document_done(doc, SP_IS_PEN_CONTEXT(dc)? SP_VERB_CONTEXT_PEN : SP_VERB_CONTEXT_PENCIL,
 543                          _("Draw path"));
 544     }
 545
 546     sp_curve_unref(c);
 547
 548     /* Flush pending updates */
 549     sp_document_ensure_up_to_date(doc);
 550 }
 551
 552 /**
 553  * Returns FIRST active anchor (the activated one).
 554  */
 555 SPDrawAnchor *
 556 spdc_test_inside(SPDrawContext *dc, NR::Point p)
 557 {
 558     SPDrawAnchor *active = NULL;
 559
 560     /* Test green anchor */
 561     if (dc->green_anchor) {
 562         active = sp_draw_anchor_test(dc->green_anchor, p, TRUE);
 563     }
 564
 565     for (GSList *l = dc->white_anchors; l != NULL; l = l->next) {
 566         SPDrawAnchor *na = sp_draw_anchor_test((SPDrawAnchor *) l->data, p, !active);
 567         if ( !active && na ) {
 568             active = na;
 569         }
 570     }
 571
 572     return active;
 573 }
 574
 575 static void
 576 spdc_reset_white(SPDrawContext *dc)
 577 {
 578     if (dc->white_item) {
 579         /* We do not hold refcount */
 580         dc->white_item = NULL;
 581     }
 582     while (dc->white_curves) {
 583         sp_curve_unref((SPCurve *) dc->white_curves->data);
 584         dc->white_curves = g_slist_remove(dc->white_curves, dc->white_curves->data);
 585     }
 586     while (dc->white_anchors) {
 587         sp_draw_anchor_destroy((SPDrawAnchor *) dc->white_anchors->data);
 588         dc->white_anchors = g_slist_remove(dc->white_anchors, dc->white_anchors->data);
 589     }
 590 }
 591
 592 static void
 593 spdc_free_colors(SPDrawContext *dc)
 594 {
 595     /* Red */
 596     if (dc->red_bpath) {
 597         gtk_object_destroy(GTK_OBJECT(dc->red_bpath));
 598         dc->red_bpath = NULL;
 599     }
 600     if (dc->red_curve) {
 601         dc->red_curve = sp_curve_unref(dc->red_curve);
 602     }
 603     /* Blue */
 604     if (dc->blue_bpath) {
 605         gtk_object_destroy(GTK_OBJECT(dc->blue_bpath));
 606         dc->blue_bpath = NULL;
 607     }
 608     if (dc->blue_curve) {
 609         dc->blue_curve = sp_curve_unref(dc->blue_curve);
 610     }
 611     /* Green */
 612     while (dc->green_bpaths) {
 613         gtk_object_destroy(GTK_OBJECT(dc->green_bpaths->data));
 614         dc->green_bpaths = g_slist_remove(dc->green_bpaths, dc->green_bpaths->data);
 615     }
 616     if (dc->green_curve) {
 617         dc->green_curve = sp_curve_unref(dc->green_curve);
 618     }
 619     if (dc->green_anchor) {
 620         dc->green_anchor = sp_draw_anchor_destroy(dc->green_anchor);
 621     }
 622     /* White */
 623     if (dc->white_item) {
 624         /* We do not hold refcount */
 625         dc->white_item = NULL;
 626     }
 627     while (dc->white_curves) {
 628         sp_curve_unref((SPCurve *) dc->white_curves->data);
 629         dc->white_curves = g_slist_remove(dc->white_curves, dc->white_curves->data);
 630     }
 631     while (dc->white_anchors) {
 632         sp_draw_anchor_destroy((SPDrawAnchor *) dc->white_anchors->data);
 633         dc->white_anchors = g_slist_remove(dc->white_anchors, dc->white_anchors->data);
 634     }
 635 }
 636
 637
 638 /*
 639   Local Variables:
 640   mode:c++
 641   c-file-style:"stroustrup"
 642   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
 643   indent-tabs-mode:nil
 644   fill-column:99
 645   End:
 646 */
 647 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :