src/eraser-context.cpp

   1 /*
   2  * Eraser drawing mode
   3  *
   4  * Authors:
   5  *   Mitsuru Oka <oka326@parkcity.ne.jp>
   6  *   Lauris Kaplinski <lauris@kaplinski.com>
   7  *   bulia byak <buliabyak@users.sf.net>
   8  *   MenTaLguY <mental@rydia.net>
   9  *   Jon A. Cruz <jon@joncruz.org>
  10  *
  11  * The original dynadraw code:
  12  *   Paul Haeberli <paul@sgi.com>
  13  *
  14  * Copyright (C) 1998 The Free Software Foundation
  15  * Copyright (C) 1999-2005 authors
  16  * Copyright (C) 2001-2002 Ximian, Inc.
  17  * Copyright (C) 2005-2007 bulia byak
  18  * Copyright (C) 2006 MenTaLguY
  19  * Copyright (C) 2008 Jon A. Cruz
  20  *
  21  * Released under GNU GPL, read the file 'COPYING' for more information
  22  */
  23
  24 #define noERASER_VERBOSE
  25
  26 #include "config.h"
  27
  28 #include <gtk/gtk.h>
  29 #include <gdk/gdkkeysyms.h>
  30 #include <glibmm/i18n.h>
  31 #include <string>
  32 #include <cstring>
  33 #include <numeric>
  34
  35 #include "svg/svg.h"
  36 #include "display/canvas-bpath.h"
  37 #include "display/bezier-utils.h"
  38
  39 #include <glib/gmem.h>
  40 #include "macros.h"
  41 #include "document.h"
  42 #include "selection.h"
  43 #include "desktop.h"
  44 #include "desktop-events.h"
  45 #include "desktop-handles.h"
  46 #include "desktop-affine.h"
  47 #include "desktop-style.h"
  48 #include "message-context.h"
  49 #include "prefs-utils.h"
  50 #include "pixmaps/cursor-eraser.xpm"
  51 #include "libnr/n-art-bpath.h"
  52 #include "libnr/nr-path.h"
  53 #include "libnr/nr-matrix-ops.h"
  54 #include "libnr/nr-scale-translate-ops.h"
  55 #include "xml/repr.h"
  56 #include "context-fns.h"
  57 #include "sp-item.h"
  58 #include "inkscape.h"
  59 #include "color.h"
  60 #include "rubberband.h"
  61 #include "splivarot.h"
  62 #include "sp-item-group.h"
  63 #include "sp-shape.h"
  64 #include "sp-path.h"
  65 #include "sp-text.h"
  66 #include "display/canvas-bpath.h"
  67 #include "display/canvas-arena.h"
  68 #include "livarot/Shape.h"
  69 #include "isnan.h"
  70
  71 #include "eraser-context.h"
  72
  73 #define ERC_RED_RGBA 0xff0000ff
  74
  75 #define TOLERANCE_ERASER 0.1
  76
  77 #define ERASER_EPSILON 0.5e-6
  78 #define ERASER_EPSILON_START 0.5e-2
  79 #define ERASER_VEL_START 1e-5
  80
  81 #define DRAG_MIN 0.0
  82 #define DRAG_DEFAULT 1.0
  83 #define DRAG_MAX 1.0
  84
  85
  86 static void sp_eraser_context_class_init(SPEraserContextClass *klass);
  87 static void sp_eraser_context_init(SPEraserContext *erc);
  88 static void sp_eraser_context_dispose(GObject *object);
  89
  90 static void sp_eraser_context_setup(SPEventContext *ec);
  91 static void sp_eraser_context_set(SPEventContext *ec, gchar const *key, gchar const *val);
  92 static gint sp_eraser_context_root_handler(SPEventContext *ec, GdkEvent *event);
  93
  94 static void clear_current(SPEraserContext *dc);
  95 static void set_to_accumulated(SPEraserContext *dc);
  96 static void add_cap(SPCurve *curve, NR::Point const &pre, NR::Point const &from, NR::Point const &to, NR::Point const &post, double rounding);
  97 static void accumulate_eraser(SPEraserContext *dc);
  98
  99 static void fit_and_split(SPEraserContext *erc, gboolean release);
 100
 101 static void sp_eraser_reset(SPEraserContext *erc, NR::Point p);
 102 static NR::Point sp_eraser_get_npoint(SPEraserContext const *erc, NR::Point v);
 103 static NR::Point sp_eraser_get_vpoint(SPEraserContext const *erc, NR::Point n);
 104 static void draw_temporary_box(SPEraserContext *dc);
 105
 106
 107 static SPEventContextClass *eraser_parent_class = 0;
 108
 109 GType sp_eraser_context_get_type(void)
 110 {
 111     static GType type = 0;
 112     if (!type) {
 113         GTypeInfo info = {
 114             sizeof(SPEraserContextClass),
 115             0, // base_init
 116             0, // base_finalize
 117             (GClassInitFunc)sp_eraser_context_class_init,
 118             0, // class_finalize
 119             0, // class_data
 120             sizeof(SPEraserContext),
 121             0, // n_preallocs
 122             (GInstanceInitFunc)sp_eraser_context_init,
 123             0 // value_table
 124         };
 125         type = g_type_register_static(SP_TYPE_COMMON_CONTEXT, "SPEraserContext", &info, static_cast<GTypeFlags>(0));
 126     }
 127     return type;
 128 }
 129
 130 static void
 131 sp_eraser_context_class_init(SPEraserContextClass *klass)
 132 {
 133     GObjectClass *object_class = (GObjectClass *) klass;
 134     SPEventContextClass *event_context_class = (SPEventContextClass *) klass;
 135
 136     eraser_parent_class = (SPEventContextClass*)g_type_class_peek_parent(klass);
 137
 138     object_class->dispose = sp_eraser_context_dispose;
 139
 140     event_context_class->setup = sp_eraser_context_setup;
 141     event_context_class->set = sp_eraser_context_set;
 142     event_context_class->root_handler = sp_eraser_context_root_handler;
 143 }
 144
 145 static void
 146 sp_eraser_context_init(SPEraserContext *erc)
 147 {
 148     erc->cursor_shape = cursor_eraser_xpm;
 149     erc->hot_x = 4;
 150     erc->hot_y = 4;
 151 }
 152
 153 static void
 154 sp_eraser_context_dispose(GObject *object)
 155 {
 156     //SPEraserContext *erc = SP_ERASER_CONTEXT(object);
 157
 158     G_OBJECT_CLASS(eraser_parent_class)->dispose(object);
 159 }
 160
 161 static void
 162 sp_eraser_context_setup(SPEventContext *ec)
 163 {
 164     SPEraserContext *erc = SP_ERASER_CONTEXT(ec);
 165
 166     if (((SPEventContextClass *) eraser_parent_class)->setup)
 167         ((SPEventContextClass *) eraser_parent_class)->setup(ec);
 168
 169     erc->accumulated = new SPCurve(32);
 170     erc->currentcurve = new SPCurve(4);
 171
 172     erc->cal1 = new SPCurve(32);
 173     erc->cal2 = new SPCurve(32);
 174
 175     erc->currentshape = sp_canvas_item_new(sp_desktop_sketch(ec->desktop), SP_TYPE_CANVAS_BPATH, NULL);
 176     sp_canvas_bpath_set_fill(SP_CANVAS_BPATH(erc->currentshape), ERC_RED_RGBA, SP_WIND_RULE_EVENODD);
 177     sp_canvas_bpath_set_stroke(SP_CANVAS_BPATH(erc->currentshape), 0x00000000, 1.0, SP_STROKE_LINEJOIN_MITER, SP_STROKE_LINECAP_BUTT);
 178     /* fixme: Cannot we cascade it to root more clearly? */
 179     g_signal_connect(G_OBJECT(erc->currentshape), "event", G_CALLBACK(sp_desktop_root_handler), ec->desktop);
 180
 181 /*
 182 static ProfileFloatElement f_profile[PROFILE_FLOAT_SIZE] = {
 183     {"mass",0.02, 0.0, 1.0},
 184     {"wiggle",0.0, 0.0, 1.0},
 185     {"angle",30.0, -90.0, 90.0},
 186     {"thinning",0.1, -1.0, 1.0},
 187     {"tremor",0.0, 0.0, 1.0},
 188     {"flatness",0.9, 0.0, 1.0},
 189     {"cap_rounding",0.0, 0.0, 5.0}
 190 };
 191 */
 192
 193     sp_event_context_read(ec, "mass");
 194     sp_event_context_read(ec, "wiggle");
 195     sp_event_context_read(ec, "angle");
 196     sp_event_context_read(ec, "width");
 197     sp_event_context_read(ec, "thinning");
 198     sp_event_context_read(ec, "tremor");
 199     sp_event_context_read(ec, "flatness");
 200     sp_event_context_read(ec, "tracebackground");
 201     sp_event_context_read(ec, "usepressure");
 202     sp_event_context_read(ec, "usetilt");
 203     sp_event_context_read(ec, "abs_width");
 204     sp_event_context_read(ec, "cap_rounding");
 205
 206     erc->is_drawing = false;
 207
 208     erc->_message_context = new Inkscape::MessageContext((ec->desktop)->messageStack());
 209
 210     if (prefs_get_int_attribute("tools.eraser", "selcue", 0) != 0) {
 211         ec->enableSelectionCue();
 212     }
 213 // TODO temp force:
 214     ec->enableSelectionCue();
 215
 216 }
 217
 218 static void
 219 sp_eraser_context_set(SPEventContext *ec, gchar const *key, gchar const *val)
 220 {
 221     SPEraserContext *erc = SP_ERASER_CONTEXT(ec);
 222
 223     if (!strcmp(key, "mass")) {
 224         double const dval = ( val ? g_ascii_strtod (val, NULL) : 0.2 );
 225         erc->mass = CLAMP(dval, -1000.0, 1000.0);
 226     } else if (!strcmp(key, "wiggle")) {
 227         double const dval = ( val ? g_ascii_strtod (val, NULL) : (1 - DRAG_DEFAULT));
 228         erc->drag = CLAMP((1 - dval), DRAG_MIN, DRAG_MAX); // drag is inverse to wiggle
 229     } else if (!strcmp(key, "angle")) {
 230         double const dval = ( val ? g_ascii_strtod (val, NULL) : 0.0);
 231         erc->angle = CLAMP (dval, -90, 90);
 232     } else if (!strcmp(key, "width")) {
 233         double const dval = ( val ? g_ascii_strtod (val, NULL) : 0.1 );
 234         erc->width = CLAMP(dval, -1000.0, 1000.0);
 235     } else if (!strcmp(key, "thinning")) {
 236         double const dval = ( val ? g_ascii_strtod (val, NULL) : 0.1 );
 237         erc->vel_thin = CLAMP(dval, -1.0, 1.0);
 238     } else if (!strcmp(key, "tremor")) {
 239         double const dval = ( val ? g_ascii_strtod (val, NULL) : 0.0 );
 240         erc->tremor = CLAMP(dval, 0.0, 1.0);
 241     } else if (!strcmp(key, "flatness")) {
 242         double const dval = ( val ? g_ascii_strtod (val, NULL) : 1.0 );
 243         erc->flatness = CLAMP(dval, 0, 1.0);
 244     } else if (!strcmp(key, "usepressure")) {
 245         erc->usepressure = (val && strcmp(val, "0"));
 246     } else if (!strcmp(key, "usetilt")) {
 247         erc->usetilt = (val && strcmp(val, "0"));
 248     } else if (!strcmp(key, "abs_width")) {
 249         erc->abs_width = (val && strcmp(val, "0"));
 250     } else if (!strcmp(key, "cap_rounding")) {
 251         erc->cap_rounding = ( val ? g_ascii_strtod (val, NULL) : 0.0 );
 252     }
 253
 254     //g_print("ERC: %g %g %g %g\n", erc->mass, erc->drag, erc->angle, erc->width);
 255 }
 256
 257 static double
 258 flerp(double f0, double f1, double p)
 259 {
 260     return f0 + ( f1 - f0 ) * p;
 261 }
 262
 263 /* Get normalized point */
 264 static NR::Point
 265 sp_eraser_get_npoint(SPEraserContext const *dc, NR::Point v)
 266 {
 267     NR::Rect drect = SP_EVENT_CONTEXT(dc)->desktop->get_display_area();
 268     double const max = MAX ( drect.dimensions()[NR::X], drect.dimensions()[NR::Y] );
 269     return NR::Point(( v[NR::X] - drect.min()[NR::X] ) / max,  ( v[NR::Y] - drect.min()[NR::Y] ) / max);
 270 }
 271
 272 /* Get view point */
 273 static NR::Point
 274 sp_eraser_get_vpoint(SPEraserContext const *dc, NR::Point n)
 275 {
 276     NR::Rect drect = SP_EVENT_CONTEXT(dc)->desktop->get_display_area();
 277     double const max = MAX ( drect.dimensions()[NR::X], drect.dimensions()[NR::Y] );
 278     return NR::Point(n[NR::X] * max + drect.min()[NR::X], n[NR::Y] * max + drect.min()[NR::Y]);
 279 }
 280
 281 static void
 282 sp_eraser_reset(SPEraserContext *dc, NR::Point p)
 283 {
 284     dc->last = dc->cur = sp_eraser_get_npoint(dc, p);
 285     dc->vel = NR::Point(0,0);
 286     dc->vel_max = 0;
 287     dc->acc = NR::Point(0,0);
 288     dc->ang = NR::Point(0,0);
 289     dc->del = NR::Point(0,0);
 290 }
 291
 292 static void
 293 sp_eraser_extinput(SPEraserContext *dc, GdkEvent *event)
 294 {
 295     if (gdk_event_get_axis (event, GDK_AXIS_PRESSURE, &dc->pressure))
 296         dc->pressure = CLAMP (dc->pressure, ERC_MIN_PRESSURE, ERC_MAX_PRESSURE);
 297     else
 298         dc->pressure = ERC_DEFAULT_PRESSURE;
 299
 300     if (gdk_event_get_axis (event, GDK_AXIS_XTILT, &dc->xtilt))
 301         dc->xtilt = CLAMP (dc->xtilt, ERC_MIN_TILT, ERC_MAX_TILT);
 302     else
 303         dc->xtilt = ERC_DEFAULT_TILT;
 304
 305     if (gdk_event_get_axis (event, GDK_AXIS_YTILT, &dc->ytilt))
 306         dc->ytilt = CLAMP (dc->ytilt, ERC_MIN_TILT, ERC_MAX_TILT);
 307     else
 308         dc->ytilt = ERC_DEFAULT_TILT;
 309 }
 310
 311
 312 static gboolean
 313 sp_eraser_apply(SPEraserContext *dc, NR::Point p)
 314 {
 315     NR::Point n = sp_eraser_get_npoint(dc, p);
 316
 317     /* Calculate mass and drag */
 318     double const mass = flerp(1.0, 160.0, dc->mass);
 319     double const drag = flerp(0.0, 0.5, dc->drag * dc->drag);
 320
 321     /* Calculate force and acceleration */
 322     NR::Point force = n - dc->cur;
 323
 324     // If force is below the absolute threshold ERASER_EPSILON,
 325     // or we haven't yet reached ERASER_VEL_START (i.e. at the beginning of stroke)
 326     // _and_ the force is below the (higher) ERASER_EPSILON_START threshold,
 327     // discard this move.
 328     // This prevents flips, blobs, and jerks caused by microscopic tremor of the tablet pen,
 329     // especially bothersome at the start of the stroke where we don't yet have the inertia to
 330     // smooth them out.
 331     if ( NR::L2(force) < ERASER_EPSILON || (dc->vel_max < ERASER_VEL_START && NR::L2(force) < ERASER_EPSILON_START)) {
 332         return FALSE;
 333     }
 334
 335     dc->acc = force / mass;
 336
 337     /* Calculate new velocity */
 338     dc->vel += dc->acc;
 339
 340     if (NR::L2(dc->vel) > dc->vel_max)
 341         dc->vel_max = NR::L2(dc->vel);
 342
 343     /* Calculate angle of drawing tool */
 344
 345     double a1;
 346     if (dc->usetilt) {
 347         // 1a. calculate nib angle from input device tilt:
 348         gdouble length = std::sqrt(dc->xtilt*dc->xtilt + dc->ytilt*dc->ytilt);;
 349
 350         if (length > 0) {
 351             NR::Point ang1 = NR::Point(dc->ytilt/length, dc->xtilt/length);
 352             a1 = atan2(ang1);
 353         }
 354         else
 355             a1 = 0.0;
 356     }
 357     else {
 358         // 1b. fixed dc->angle (absolutely flat nib):
 359         double const radians = ( (dc->angle - 90) / 180.0 ) * M_PI;
 360         NR::Point ang1 = NR::Point(-sin(radians),  cos(radians));
 361         a1 = atan2(ang1);
 362     }
 363
 364     // 2. perpendicular to dc->vel (absolutely non-flat nib):
 365     gdouble const mag_vel = NR::L2(dc->vel);
 366     if ( mag_vel < ERASER_EPSILON ) {
 367         return FALSE;
 368     }
 369     NR::Point ang2 = NR::rot90(dc->vel) / mag_vel;
 370
 371     // 3. Average them using flatness parameter:
 372     // calculate angles
 373     double a2 = atan2(ang2);
 374     // flip a2 to force it to be in the same half-circle as a1
 375     bool flipped = false;
 376     if (fabs (a2-a1) > 0.5*M_PI) {
 377         a2 += M_PI;
 378         flipped = true;
 379     }
 380     // normalize a2
 381     if (a2 > M_PI)
 382         a2 -= 2*M_PI;
 383     if (a2 < -M_PI)
 384         a2 += 2*M_PI;
 385     // find the flatness-weighted bisector angle, unflip if a2 was flipped
 386     // FIXME: when dc->vel is oscillating around the fixed angle, the new_ang flips back and forth. How to avoid this?
 387     double new_ang = a1 + (1 - dc->flatness) * (a2 - a1) - (flipped? M_PI : 0);
 388
 389     // Try to detect a sudden flip when the new angle differs too much from the previous for the
 390     // current velocity; in that case discard this move
 391     double angle_delta = NR::L2(NR::Point (cos (new_ang), sin (new_ang)) - dc->ang);
 392     if ( angle_delta / NR::L2(dc->vel) > 4000 ) {
 393         return FALSE;
 394     }
 395
 396     // convert to point
 397     dc->ang = NR::Point (cos (new_ang), sin (new_ang));
 398
 399 //    g_print ("force %g  acc %g  vel_max %g  vel %g  a1 %g  a2 %g  new_ang %g\n", NR::L2(force), NR::L2(dc->acc), dc->vel_max, NR::L2(dc->vel), a1, a2, new_ang);
 400
 401     /* Apply drag */
 402     dc->vel *= 1.0 - drag;
 403
 404     /* Update position */
 405     dc->last = dc->cur;
 406     dc->cur += dc->vel;
 407
 408     return TRUE;
 409 }
 410
 411 static void
 412 sp_eraser_brush(SPEraserContext *dc)
 413 {
 414     g_assert( dc->npoints >= 0 && dc->npoints < SAMPLING_SIZE );
 415
 416     // How much velocity thins strokestyle
 417     double vel_thin = flerp (0, 160, dc->vel_thin);
 418
 419     // Influence of pressure on thickness
 420     double pressure_thick = (dc->usepressure ? dc->pressure : 1.0);
 421
 422     // get the real brush point, not the same as pointer (affected by hatch tracking and/or mass
 423     // drag)
 424     NR::Point brush = sp_eraser_get_vpoint(dc, dc->cur);
 425     NR::Point brush_w = SP_EVENT_CONTEXT(dc)->desktop->d2w(brush);
 426
 427     double trace_thick = 1;
 428
 429     double width = (pressure_thick * trace_thick - vel_thin * NR::L2(dc->vel)) * dc->width;
 430
 431     double tremble_left = 0, tremble_right = 0;
 432     if (dc->tremor > 0) {
 433         // obtain two normally distributed random variables, using polar Box-Muller transform
 434         double x1, x2, w, y1, y2;
 435         do {
 436             x1 = 2.0 * g_random_double_range(0,1) - 1.0;
 437             x2 = 2.0 * g_random_double_range(0,1) - 1.0;
 438             w = x1 * x1 + x2 * x2;
 439         } while ( w >= 1.0 );
 440         w = sqrt( (-2.0 * log( w ) ) / w );
 441         y1 = x1 * w;
 442         y2 = x2 * w;
 443
 444         // deflect both left and right edges randomly and independently, so that:
 445         // (1) dc->tremor=1 corresponds to sigma=1, decreasing dc->tremor narrows the bell curve;
 446         // (2) deflection depends on width, but is upped for small widths for better visual uniformity across widths;
 447         // (3) deflection somewhat depends on speed, to prevent fast strokes looking
 448         // comparatively smooth and slow ones excessively jittery
 449         tremble_left  = (y1)*dc->tremor * (0.15 + 0.8*width) * (0.35 + 14*NR::L2(dc->vel));
 450         tremble_right = (y2)*dc->tremor * (0.15 + 0.8*width) * (0.35 + 14*NR::L2(dc->vel));
 451     }
 452
 453     if ( width < 0.02 * dc->width ) {
 454         width = 0.02 * dc->width;
 455     }
 456
 457     double dezoomify_factor = 0.05 * 1000;
 458     if (!dc->abs_width) {
 459         dezoomify_factor /= SP_EVENT_CONTEXT(dc)->desktop->current_zoom();
 460     }
 461
 462     NR::Point del_left = dezoomify_factor * (width + tremble_left) * dc->ang;
 463     NR::Point del_right = dezoomify_factor * (width + tremble_right) * dc->ang;
 464
 465     dc->point1[dc->npoints] = brush + del_left;
 466     dc->point2[dc->npoints] = brush - del_right;
 467
 468     dc->del = 0.5*(del_left + del_right);
 469
 470     dc->npoints++;
 471 }
 472
 473 void
 474 sp_erc_update_toolbox (SPDesktop *desktop, const gchar *id, double value)
 475 {
 476     desktop->setToolboxAdjustmentValue (id, value);
 477 }
 478
 479 static void
 480 eraser_cancel(SPEraserContext *dc)
 481 {
 482     SPDesktop *desktop = SP_EVENT_CONTEXT(dc)->desktop;
 483     dc->dragging = FALSE;
 484     dc->is_drawing = false;
 485     sp_canvas_item_ungrab(SP_CANVAS_ITEM(desktop->acetate), 0);
 486             /* Remove all temporary line segments */
 487             while (dc->segments) {
 488                 gtk_object_destroy(GTK_OBJECT(dc->segments->data));
 489                 dc->segments = g_slist_remove(dc->segments, dc->segments->data);
 490             }
 491             /* reset accumulated curve */
 492             dc->accumulated->reset();
 493             clear_current(dc);
 494             if (dc->repr) {
 495                 dc->repr = NULL;
 496             }
 497 }
 498
 499
 500 gint
 501 sp_eraser_context_root_handler(SPEventContext *event_context,
 502                                   GdkEvent *event)
 503 {
 504     SPEraserContext *dc = SP_ERASER_CONTEXT(event_context);
 505     SPDesktop *desktop = event_context->desktop;
 506
 507     gint ret = FALSE;
 508
 509     switch (event->type) {
 510         case GDK_BUTTON_PRESS:
 511             if (event->button.button == 1 && !event_context->space_panning) {
 512
 513                 SPDesktop *desktop = SP_EVENT_CONTEXT_DESKTOP(dc);
 514
 515                 if (Inkscape::have_viable_layer(desktop, dc->_message_context) == false) {
 516                     return TRUE;
 517                 }
 518
 519                 NR::Point const button_w(event->button.x,
 520                                          event->button.y);
 521                 NR::Point const button_dt(desktop->w2d(button_w));
 522                 sp_eraser_reset(dc, button_dt);
 523                 sp_eraser_extinput(dc, event);
 524                 sp_eraser_apply(dc, button_dt);
 525                 dc->accumulated->reset();
 526                 if (dc->repr) {
 527                     dc->repr = NULL;
 528                 }
 529
 530                 Inkscape::Rubberband::get()->start(desktop, button_dt);
 531                 Inkscape::Rubberband::get()->setMode(RUBBERBAND_MODE_TOUCHPATH);
 532
 533                 /* initialize first point */
 534                 dc->npoints = 0;
 535
 536                 sp_canvas_item_grab(SP_CANVAS_ITEM(desktop->acetate),
 537                                     ( GDK_KEY_PRESS_MASK |
 538                                       GDK_BUTTON_RELEASE_MASK |
 539                                       GDK_POINTER_MOTION_MASK |
 540                                       GDK_BUTTON_PRESS_MASK ),
 541                                     NULL,
 542                                     event->button.time);
 543
 544                 ret = TRUE;
 545
 546                 sp_canvas_force_full_redraw_after_interruptions(desktop->canvas, 3);
 547                 dc->is_drawing = true;
 548             }
 549             break;
 550         case GDK_MOTION_NOTIFY:
 551         {
 552             NR::Point const motion_w(event->motion.x,
 553                                      event->motion.y);
 554             NR::Point motion_dt(desktop->w2d(motion_w));
 555             sp_eraser_extinput(dc, event);
 556
 557             dc->_message_context->clear();
 558
 559             if ( dc->is_drawing && (event->motion.state & GDK_BUTTON1_MASK) && !event_context->space_panning) {
 560                 dc->dragging = TRUE;
 561
 562                 dc->_message_context->set(Inkscape::NORMAL_MESSAGE, _("<b>Drawing</b> an eraser stroke"));
 563
 564                 if (!sp_eraser_apply(dc, motion_dt)) {
 565                     ret = TRUE;
 566                     break;
 567                 }
 568
 569                 if ( dc->cur != dc->last ) {
 570                     sp_eraser_brush(dc);
 571                     g_assert( dc->npoints > 0 );
 572                     fit_and_split(dc, FALSE);
 573                 }
 574                 ret = TRUE;
 575             }
 576             Inkscape::Rubberband::get()->move(motion_dt);
 577         }
 578         break;
 579
 580
 581     case GDK_BUTTON_RELEASE:
 582     {
 583         NR::Point const motion_w(event->button.x, event->button.y);
 584         NR::Point const motion_dt(desktop->w2d(motion_w));
 585
 586         sp_canvas_item_ungrab(SP_CANVAS_ITEM(desktop->acetate), event->button.time);
 587         sp_canvas_end_forced_full_redraws(desktop->canvas);
 588         dc->is_drawing = false;
 589
 590         if (dc->dragging && event->button.button == 1 && !event_context->space_panning) {
 591             dc->dragging = FALSE;
 592
 593             NR::Maybe<NR::Rect> const b = Inkscape::Rubberband::get()->getRectangle();
 594
 595             sp_eraser_apply(dc, motion_dt);
 596
 597             /* Remove all temporary line segments */
 598             while (dc->segments) {
 599                 gtk_object_destroy(GTK_OBJECT(dc->segments->data));
 600                 dc->segments = g_slist_remove(dc->segments, dc->segments->data);
 601             }
 602
 603             /* Create object */
 604             fit_and_split(dc, TRUE);
 605             accumulate_eraser(dc);
 606             set_to_accumulated(dc); // performs document_done
 607
 608             /* reset accumulated curve */
 609             dc->accumulated->reset();
 610
 611             clear_current(dc);
 612             if (dc->repr) {
 613                 dc->repr = NULL;
 614             }
 615
 616             Inkscape::Rubberband::get()->stop();
 617             dc->_message_context->clear();
 618             ret = TRUE;
 619         }
 620         break;
 621     }
 622
 623     case GDK_KEY_PRESS:
 624         switch (get_group0_keyval (&event->key)) {
 625         case GDK_Up:
 626         case GDK_KP_Up:
 627             if (!MOD__CTRL_ONLY) {
 628                 dc->angle += 5.0;
 629                 if (dc->angle > 90.0)
 630                     dc->angle = 90.0;
 631                 sp_erc_update_toolbox (desktop, "eraser-angle", dc->angle);
 632                 ret = TRUE;
 633             }
 634             break;
 635         case GDK_Down:
 636         case GDK_KP_Down:
 637             if (!MOD__CTRL_ONLY) {
 638                 dc->angle -= 5.0;
 639                 if (dc->angle < -90.0)
 640                     dc->angle = -90.0;
 641                 sp_erc_update_toolbox (desktop, "eraser-angle", dc->angle);
 642                 ret = TRUE;
 643             }
 644             break;
 645         case GDK_Right:
 646         case GDK_KP_Right:
 647             if (!MOD__CTRL_ONLY) {
 648                 dc->width += 0.01;
 649                 if (dc->width > 1.0)
 650                     dc->width = 1.0;
 651                 sp_erc_update_toolbox (desktop, "altx-eraser", dc->width * 100); // the same spinbutton is for alt+x
 652                 ret = TRUE;
 653             }
 654             break;
 655         case GDK_Left:
 656         case GDK_KP_Left:
 657             if (!MOD__CTRL_ONLY) {
 658                 dc->width -= 0.01;
 659                 if (dc->width < 0.01)
 660                     dc->width = 0.01;
 661                 sp_erc_update_toolbox (desktop, "altx-eraser", dc->width * 100);
 662                 ret = TRUE;
 663             }
 664             break;
 665         case GDK_Home:
 666         case GDK_KP_Home:
 667             dc->width = 0.01;
 668             sp_erc_update_toolbox (desktop, "altx-eraser", dc->width * 100);
 669             ret = TRUE;
 670             break;
 671         case GDK_End:
 672         case GDK_KP_End:
 673             dc->width = 1.0;
 674             sp_erc_update_toolbox (desktop, "altx-eraser", dc->width * 100);
 675             ret = TRUE;
 676             break;
 677         case GDK_x:
 678         case GDK_X:
 679             if (MOD__ALT_ONLY) {
 680                 desktop->setToolboxFocusTo ("altx-eraser");
 681                 ret = TRUE;
 682             }
 683             break;
 684         case GDK_Escape:
 685             Inkscape::Rubberband::get()->stop();
 686             if (dc->is_drawing) {
 687                 // if drawing, cancel, otherwise pass it up for deselecting
 688                 eraser_cancel (dc);
 689                 ret = TRUE;
 690             }
 691             break;
 692         case GDK_z:
 693         case GDK_Z:
 694             if (MOD__CTRL_ONLY && dc->is_drawing) {
 695                 // if drawing, cancel, otherwise pass it up for undo
 696                 eraser_cancel (dc);
 697                 ret = TRUE;
 698             }
 699             break;
 700         default:
 701             break;
 702         }
 703         break;
 704
 705     case GDK_KEY_RELEASE:
 706         switch (get_group0_keyval(&event->key)) {
 707             case GDK_Control_L:
 708             case GDK_Control_R:
 709                 dc->_message_context->clear();
 710                 break;
 711             default:
 712                 break;
 713         }
 714
 715     default:
 716         break;
 717     }
 718
 719     if (!ret) {
 720         if (((SPEventContextClass *) eraser_parent_class)->root_handler) {
 721             ret = ((SPEventContextClass *) eraser_parent_class)->root_handler(event_context, event);
 722         }
 723     }
 724
 725     return ret;
 726 }
 727
 728
 729 static void
 730 clear_current(SPEraserContext *dc)
 731 {
 732     // reset bpath
 733     sp_canvas_bpath_set_bpath(SP_CANVAS_BPATH(dc->currentshape), NULL);
 734
 735     // reset curve
 736     dc->currentcurve->reset();
 737     dc->cal1->reset();
 738     dc->cal2->reset();
 739
 740     // reset points
 741     dc->npoints = 0;
 742 }
 743
 744 static void
 745 set_to_accumulated(SPEraserContext *dc)
 746 {
 747     SPDesktop *desktop = SP_EVENT_CONTEXT(dc)->desktop;
 748     bool workDone = false;
 749
 750     if (!dc->accumulated->is_empty()) {
 751         NArtBpath *abp;
 752         gchar *str;
 753
 754         if (!dc->repr) {
 755             /* Create object */
 756             Inkscape::XML::Document *xml_doc = sp_document_repr_doc(desktop->doc());
 757             Inkscape::XML::Node *repr = xml_doc->createElement("svg:path");
 758
 759             /* Set style */
 760             sp_desktop_apply_style_tool (desktop, repr, "tools.eraser", false);
 761
 762             dc->repr = repr;
 763
 764             SPItem *item=SP_ITEM(desktop->currentLayer()->appendChildRepr(dc->repr));
 765             Inkscape::GC::release(dc->repr);
 766             item->transform = SP_ITEM(desktop->currentRoot())->getRelativeTransform(desktop->currentLayer());
 767             item->updateRepr();
 768         }
 769         abp = nr_artpath_affine(dc->accumulated->first_bpath(), sp_desktop_dt2root_affine(desktop));
 770         str = sp_svg_write_path(abp);
 771         g_assert( str != NULL );
 772         g_free(abp);
 773         dc->repr->setAttribute("d", str);
 774         g_free(str);
 775
 776         if ( dc->repr ) {
 777             bool wasSelection = false;
 778             Inkscape::Selection *selection = sp_desktop_selection(desktop);
 779             gint eraserMode = (prefs_get_int_attribute("tools.eraser", "mode", 0) != 0) ? 1 : 0;
 780             Inkscape::XML::Document *xml_doc = sp_document_repr_doc(desktop->doc());
 781
 782             SPItem* acid = SP_ITEM(desktop->doc()->getObjectByRepr(dc->repr));
 783             NR::Maybe<NR::Rect> eraserBbox = acid->getBounds(NR::identity());
 784             NR::Rect bounds = (*eraserBbox) * desktop->doc2dt();
 785             std::vector<SPItem*> remainingItems;
 786             GSList* toWorkOn = 0;
 787             if (selection->isEmpty()) {
 788                 if ( eraserMode ) {
 789                     toWorkOn = sp_document_partial_items_in_box(sp_desktop_document(desktop), desktop->dkey, bounds);
 790                 } else {
 791                     Inkscape::Rubberband::Rubberband *r = Inkscape::Rubberband::get();
 792                     toWorkOn = sp_document_items_at_points(sp_desktop_document(desktop), desktop->dkey, r->getPoints());
 793                 }
 794                 toWorkOn = g_slist_remove( toWorkOn, acid );
 795             } else {
 796                 toWorkOn = g_slist_copy(const_cast<GSList*>(selection->itemList()));
 797                 wasSelection = true;
 798             }
 799
 800             if ( g_slist_length(toWorkOn) > 0 ) {
 801                 if ( eraserMode ) {
 802                     for (GSList *i = toWorkOn ; i ; i = i->next ) {
 803                         SPItem *item = SP_ITEM(i->data);
 804                         if ( eraserMode ) {
 805                             NR::Maybe<NR::Rect> bbox = item->getBounds(NR::identity());
 806                             if (bbox && bbox->intersects(*eraserBbox)) {
 807                                 Inkscape::XML::Node* dup = dc->repr->duplicate(xml_doc);
 808                                 dc->repr->parent()->appendChild(dup);
 809                                 Inkscape::GC::release(dup); // parent takes over
 810
 811                                 selection->set(item);
 812                                 selection->add(dup);
 813                                 sp_selected_path_diff_skip_undo();
 814                                 workDone = true; // TODO set this only if something was cut.
 815                                 if ( !selection->isEmpty() ) {
 816                                     // If the item was not completely erased, track the new remainder.
 817                                     GSList *nowSel = g_slist_copy(const_cast<GSList *>(selection->itemList()));
 818                                     for (GSList const *i2 = nowSel ; i2 ; i2 = i2->next ) {
 819                                         remainingItems.push_back(SP_ITEM(i2->data));
 820                                     }
 821                                     g_slist_free(nowSel);
 822                                 }
 823                             } else {
 824                                 remainingItems.push_back(item);
 825                             }
 826                         }
 827                     }
 828                 } else {
 829                     for (GSList *i = toWorkOn ; i ; i = i->next ) {
 830                         sp_object_ref( SP_ITEM(i->data), 0 );
 831                     }
 832                     for (GSList *i = toWorkOn ; i ; i = i->next ) {
 833                         SPItem *item = SP_ITEM(i->data);
 834                         item->deleteObject(true);
 835                         sp_object_unref(item);
 836                         workDone = true;
 837                     }
 838                 }
 839
 840                 g_slist_free(toWorkOn);
 841
 842                 if ( !eraserMode ) {
 843                     //sp_selection_delete();
 844                     remainingItems.clear();
 845                 }
 846
 847                 selection->clear();
 848                 if ( wasSelection ) {
 849                     if ( !remainingItems.empty() ) {
 850                         selection->add(remainingItems.begin(), remainingItems.end());
 851                     }
 852                 }
 853             }
 854
 855             // Remove the eraser stroke itself:
 856             sp_repr_unparent( dc->repr );
 857             dc->repr = 0;
 858         }
 859     } else {
 860         if (dc->repr) {
 861             sp_repr_unparent(dc->repr);
 862             dc->repr = 0;
 863         }
 864     }
 865
 866
 867     if ( workDone ) {
 868         sp_document_done(sp_desktop_document(desktop), SP_VERB_CONTEXT_ERASER,
 869                          _("Draw eraser stroke"));
 870     } else {
 871         sp_document_cancel(sp_desktop_document(desktop));
 872     }
 873 }
 874
 875 static void
 876 add_cap(SPCurve *curve,
 877         NR::Point const &pre, NR::Point const &from,
 878         NR::Point const &to, NR::Point const &post,
 879         double rounding)
 880 {
 881     NR::Point vel = rounding * NR::rot90( to - from ) / sqrt(2.0);
 882     double mag = NR::L2(vel);
 883
 884     NR::Point v_in = from - pre;
 885     double mag_in = NR::L2(v_in);
 886     if ( mag_in > ERASER_EPSILON ) {
 887         v_in = mag * v_in / mag_in;
 888     } else {
 889         v_in = NR::Point(0, 0);
 890     }
 891
 892     NR::Point v_out = to - post;
 893     double mag_out = NR::L2(v_out);
 894     if ( mag_out > ERASER_EPSILON ) {
 895         v_out = mag * v_out / mag_out;
 896     } else {
 897         v_out = NR::Point(0, 0);
 898     }
 899
 900     if ( NR::L2(v_in) > ERASER_EPSILON || NR::L2(v_out) > ERASER_EPSILON ) {
 901         curve->curveto(from + v_in, to + v_out, to);
 902     }
 903 }
 904
 905 static void
 906 accumulate_eraser(SPEraserContext *dc)
 907 {
 908     if ( !dc->cal1->is_empty() && !dc->cal2->is_empty() ) {
 909         dc->accumulated->reset(); /*  Is this required ?? */
 910         SPCurve *rev_cal2 = dc->cal2->create_reverse();
 911
 912         g_assert(dc->cal1->_end > 1);
 913         g_assert(rev_cal2->_end > 1);
 914         g_assert(SP_CURVE_SEGMENT(dc->cal1, 0)->code == NR_MOVETO_OPEN);
 915         g_assert(SP_CURVE_SEGMENT(rev_cal2, 0)->code == NR_MOVETO_OPEN);
 916         g_assert(SP_CURVE_SEGMENT(dc->cal1, 1)->code == NR_CURVETO);
 917         g_assert(SP_CURVE_SEGMENT(rev_cal2, 1)->code == NR_CURVETO);
 918         g_assert(SP_CURVE_SEGMENT(dc->cal1, dc->cal1->_end-1)->code == NR_CURVETO);
 919         g_assert(SP_CURVE_SEGMENT(rev_cal2, rev_cal2->_end-1)->code == NR_CURVETO);
 920
 921         dc->accumulated->append(dc->cal1, FALSE);
 922
 923         add_cap(dc->accumulated, SP_CURVE_SEGMENT(dc->cal1, dc->cal1->_end-1)->c(2), SP_CURVE_SEGMENT(dc->cal1, dc->cal1->_end-1)->c(3), SP_CURVE_SEGMENT(rev_cal2, 0)->c(3), SP_CURVE_SEGMENT(rev_cal2, 1)->c(1), dc->cap_rounding);
 924
 925         dc->accumulated->append(rev_cal2, TRUE);
 926
 927         add_cap(dc->accumulated, SP_CURVE_SEGMENT(rev_cal2, rev_cal2->_end-1)->c(2), SP_CURVE_SEGMENT(rev_cal2, rev_cal2->_end-1)->c(3), SP_CURVE_SEGMENT(dc->cal1, 0)->c(3), SP_CURVE_SEGMENT(dc->cal1, 1)->c(1), dc->cap_rounding);
 928
 929         dc->accumulated->closepath();
 930
 931         rev_cal2->unref();
 932
 933         dc->cal1->reset();
 934         dc->cal2->reset();
 935     }
 936 }
 937
 938 static double square(double const x)
 939 {
 940     return x * x;
 941 }
 942
 943 static void
 944 fit_and_split(SPEraserContext *dc, gboolean release)
 945 {
 946     double const tolerance_sq = square( NR::expansion(SP_EVENT_CONTEXT(dc)->desktop->w2d()) * TOLERANCE_ERASER );
 947
 948 #ifdef ERASER_VERBOSE
 949     g_print("[F&S:R=%c]", release?'T':'F');
 950 #endif
 951
 952     if (!( dc->npoints > 0 && dc->npoints < SAMPLING_SIZE ))
 953         return; // just clicked
 954
 955     if ( dc->npoints == SAMPLING_SIZE - 1 || release ) {
 956 #define BEZIER_SIZE       4
 957 #define BEZIER_MAX_BEZIERS  8
 958 #define BEZIER_MAX_LENGTH ( BEZIER_SIZE * BEZIER_MAX_BEZIERS )
 959
 960 #ifdef ERASER_VERBOSE
 961         g_print("[F&S:#] dc->npoints:%d, release:%s\n",
 962                 dc->npoints, release ? "TRUE" : "FALSE");
 963 #endif
 964
 965         /* Current eraser */
 966         if ( dc->cal1->_end == 0 || dc->cal2->_end == 0 ) {
 967             /* dc->npoints > 0 */
 968             /* g_print("erasers(1|2) reset\n"); */
 969             dc->cal1->reset();
 970             dc->cal2->reset();
 971
 972             dc->cal1->moveto(dc->point1[0]);
 973             dc->cal2->moveto(dc->point2[0]);
 974         }
 975
 976         NR::Point b1[BEZIER_MAX_LENGTH];
 977         gint const nb1 = sp_bezier_fit_cubic_r(b1, dc->point1, dc->npoints,
 978                                                tolerance_sq, BEZIER_MAX_BEZIERS);
 979         g_assert( nb1 * BEZIER_SIZE <= gint(G_N_ELEMENTS(b1)) );
 980
 981         NR::Point b2[BEZIER_MAX_LENGTH];
 982         gint const nb2 = sp_bezier_fit_cubic_r(b2, dc->point2, dc->npoints,
 983                                                tolerance_sq, BEZIER_MAX_BEZIERS);
 984         g_assert( nb2 * BEZIER_SIZE <= gint(G_N_ELEMENTS(b2)) );
 985
 986         if ( nb1 != -1 && nb2 != -1 ) {
 987             /* Fit and draw and reset state */
 988 #ifdef ERASER_VERBOSE
 989             g_print("nb1:%d nb2:%d\n", nb1, nb2);
 990 #endif
 991             /* CanvasShape */
 992             if (! release) {
 993                 dc->currentcurve->reset();
 994                 dc->currentcurve->moveto(b1[0]);
 995                 for (NR::Point *bp1 = b1; bp1 < b1 + BEZIER_SIZE * nb1; bp1 += BEZIER_SIZE) {
 996                     dc->currentcurve->curveto(bp1[1],
 997                                      bp1[2], bp1[3]);
 998                 }
 999                 dc->currentcurve->lineto(b2[BEZIER_SIZE*(nb2-1) + 3]);
1000                 for (NR::Point *bp2 = b2 + BEZIER_SIZE * ( nb2 - 1 ); bp2 >= b2; bp2 -= BEZIER_SIZE) {
1001                     dc->currentcurve->curveto(bp2[2], bp2[1], bp2[0]);
1002                 }
1003                 // FIXME: dc->segments is always NULL at this point??
1004                 if (!dc->segments) { // first segment
1005                     add_cap(dc->currentcurve, b2[1], b2[0], b1[0], b1[1], dc->cap_rounding);
1006                 }
1007                 dc->currentcurve->closepath();
1008                 sp_canvas_bpath_set_bpath(SP_CANVAS_BPATH(dc->currentshape), dc->currentcurve);
1009             }
1010
1011             /* Current eraser */
1012             for (NR::Point *bp1 = b1; bp1 < b1 + BEZIER_SIZE * nb1; bp1 += BEZIER_SIZE) {
1013                 dc->cal1->curveto(bp1[1], bp1[2], bp1[3]);
1014             }
1015             for (NR::Point *bp2 = b2; bp2 < b2 + BEZIER_SIZE * nb2; bp2 += BEZIER_SIZE) {
1016                 dc->cal2->curveto(bp2[1], bp2[2], bp2[3]);
1017             }
1018         } else {
1019             /* fixme: ??? */
1020 #ifdef ERASER_VERBOSE
1021             g_print("[fit_and_split] failed to fit-cubic.\n");
1022 #endif
1023             draw_temporary_box(dc);
1024
1025             for (gint i = 1; i < dc->npoints; i++) {
1026                 dc->cal1->lineto(dc->point1[i]);
1027             }
1028             for (gint i = 1; i < dc->npoints; i++) {
1029                 dc->cal2->lineto(dc->point2[i]);
1030             }
1031         }
1032
1033         /* Fit and draw and copy last point */
1034 #ifdef ERASER_VERBOSE
1035         g_print("[%d]Yup\n", dc->npoints);
1036 #endif
1037         if (!release) {
1038             gint eraserMode = (prefs_get_int_attribute("tools.eraser", "mode", 0) != 0) ? 1 : 0;
1039             g_assert(!dc->currentcurve->is_empty());
1040
1041             SPCanvasItem *cbp = sp_canvas_item_new(sp_desktop_sketch(SP_EVENT_CONTEXT(dc)->desktop),
1042                                                    SP_TYPE_CANVAS_BPATH,
1043                                                    NULL);
1044             SPCurve *curve = dc->currentcurve->copy();
1045             sp_canvas_bpath_set_bpath(SP_CANVAS_BPATH (cbp), curve);
1046             curve->unref();
1047
1048             guint32 fillColor = sp_desktop_get_color_tool (SP_ACTIVE_DESKTOP, "tools.eraser", true);
1049             //guint32 strokeColor = sp_desktop_get_color_tool (SP_ACTIVE_DESKTOP, "tools.eraser", false);
1050             double opacity = sp_desktop_get_master_opacity_tool (SP_ACTIVE_DESKTOP, "tools.eraser");
1051             double fillOpacity = sp_desktop_get_opacity_tool (SP_ACTIVE_DESKTOP, "tools.eraser", true);
1052             //double strokeOpacity = sp_desktop_get_opacity_tool (SP_ACTIVE_DESKTOP, "tools.eraser", false);
1053             sp_canvas_bpath_set_fill(SP_CANVAS_BPATH(cbp), ((fillColor & 0xffffff00) | SP_COLOR_F_TO_U(opacity*fillOpacity)), SP_WIND_RULE_EVENODD);
1054             //on second thougtht don't do stroke yet because we don't have stoke-width yet and because stoke appears between segments while drawing
1055             //sp_canvas_bpath_set_stroke(SP_CANVAS_BPATH(cbp), ((strokeColor & 0xffffff00) | SP_COLOR_F_TO_U(opacity*strokeOpacity)), 1.0, SP_STROKE_LINEJOIN_MITER, SP_STROKE_LINECAP_BUTT);
1056             sp_canvas_bpath_set_stroke(SP_CANVAS_BPATH(cbp), 0x00000000, 1.0, SP_STROKE_LINEJOIN_MITER, SP_STROKE_LINECAP_BUTT);
1057             /* fixme: Cannot we cascade it to root more clearly? */
1058             g_signal_connect(G_OBJECT(cbp), "event", G_CALLBACK(sp_desktop_root_handler), SP_EVENT_CONTEXT(dc)->desktop);
1059
1060             dc->segments = g_slist_prepend(dc->segments, cbp);
1061
1062             if ( !eraserMode ) {
1063                 sp_canvas_item_hide(cbp);
1064                 sp_canvas_item_hide(dc->currentshape);
1065             }
1066         }
1067
1068         dc->point1[0] = dc->point1[dc->npoints - 1];
1069         dc->point2[0] = dc->point2[dc->npoints - 1];
1070         dc->npoints = 1;
1071     } else {
1072         draw_temporary_box(dc);
1073     }
1074 }
1075
1076 static void
1077 draw_temporary_box(SPEraserContext *dc)
1078 {
1079     dc->currentcurve->reset();
1080
1081     dc->currentcurve->moveto(dc->point1[dc->npoints-1]);
1082     for (gint i = dc->npoints-2; i >= 0; i--) {
1083         dc->currentcurve->lineto(dc->point1[i]);
1084     }
1085     for (gint i = 0; i < dc->npoints; i++) {
1086         dc->currentcurve->lineto(dc->point2[i]);
1087     }
1088     if (dc->npoints >= 2) {
1089         add_cap(dc->currentcurve, dc->point2[dc->npoints-2], dc->point2[dc->npoints-1], dc->point1[dc->npoints-1], dc->point1[dc->npoints-2], dc->cap_rounding);
1090     }
1091
1092     dc->currentcurve->closepath();
1093     sp_canvas_bpath_set_bpath(SP_CANVAS_BPATH(dc->currentshape), dc->currentcurve);
1094 }
1095
1096 /*
1097   Local Variables:
1098   mode:c++
1099   c-file-style:"stroustrup"
1100   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1101   indent-tabs-mode:nil
1102   fill-column:99
1103   End:
1104 */
1105 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :