src/select-context.cpp

   1 /*
   2  * Selection and transformation context
   3  *
   4  * Authors:
   5  *   Lauris Kaplinski <lauris@kaplinski.com>
   6  *   bulia byak <buliabyak@users.sf.net>
   7  *   Abhishek Sharma
   8  *
   9  * Copyright (C) 2006      Johan Engelen <johan@shouraizou.nl>
  10  * Copyright (C) 1999-2005 Authors
  11  *
  12  * Released under GNU GPL, read the file 'COPYING' for more information
  13  */
  14
  15 #ifdef HAVE_CONFIG_H
  16 # include "config.h"
  17 #endif
  18 #include <cstring>
  19 #include <string>
  20 #include <gdk/gdkkeysyms.h>
  21 #include "macros.h"
  22 #include "rubberband.h"
  23 #include "document.h"
  24 #include "selection.h"
  25 #include "seltrans-handles.h"
  26 #include "sp-cursor.h"
  27 #include "pixmaps/cursor-select-m.xpm"
  28 #include "pixmaps/cursor-select-d.xpm"
  29 #include "pixmaps/handles.xpm"
  30 #include <glibmm/i18n.h>
  31
  32 #include "select-context.h"
  33 #include "selection-chemistry.h"
  34 #include "desktop.h"
  35 #include "desktop-handles.h"
  36 #include "sp-root.h"
  37 #include "preferences.h"
  38 #include "tools-switch.h"
  39 #include "message-stack.h"
  40 #include "selection-describer.h"
  41 #include "seltrans.h"
  42 #include "box3d.h"
  43 #include "display/nr-arena-item.h"
  44
  45 using Inkscape::DocumentUndo;
  46
  47 static void sp_select_context_class_init(SPSelectContextClass *klass);
  48 static void sp_select_context_init(SPSelectContext *select_context);
  49 static void sp_select_context_dispose(GObject *object);
  50
  51 static void sp_select_context_setup(SPEventContext *ec);
  52 static void sp_select_context_set(SPEventContext *ec, Inkscape::Preferences::Entry *val);
  53 static gint sp_select_context_root_handler(SPEventContext *event_context, GdkEvent *event);
  54 static gint sp_select_context_item_handler(SPEventContext *event_context, SPItem *item, GdkEvent *event);
  55
  56 static SPEventContextClass *parent_class;
  57
  58 static GdkCursor *CursorSelectMouseover = NULL;
  59 static GdkCursor *CursorSelectDragging = NULL;
  60 GdkPixbuf *handles[13];
  61
  62 static gint rb_escaped = 0; // if non-zero, rubberband was canceled by esc, so the next button release should not deselect
  63 static gint drag_escaped = 0; // if non-zero, drag was canceled by esc
  64
  65 static gint xp = 0, yp = 0; // where drag started
  66 static gint tolerance = 0;
  67 static bool within_tolerance = false;
  68
  69 GtkType
  70 sp_select_context_get_type(void)
  71 {
  72     static GType type = 0;
  73     if (!type) {
  74         GTypeInfo info = {
  75             sizeof(SPSelectContextClass),
  76             NULL, NULL,
  77             (GClassInitFunc) sp_select_context_class_init,
  78             NULL, NULL,
  79             sizeof(SPSelectContext),
  80             4,
  81             (GInstanceInitFunc) sp_select_context_init,
  82             NULL,   /* value_table */
  83         };
  84         type = g_type_register_static(SP_TYPE_EVENT_CONTEXT, "SPSelectContext", &info, (GTypeFlags)0);
  85     }
  86     return type;
  87 }
  88
  89 static void
  90 sp_select_context_class_init(SPSelectContextClass *klass)
  91 {
  92     GObjectClass *object_class = (GObjectClass *) klass;
  93     SPEventContextClass *event_context_class = (SPEventContextClass *) klass;
  94
  95     parent_class = (SPEventContextClass*)g_type_class_peek_parent(klass);
  96
  97     object_class->dispose = sp_select_context_dispose;
  98
  99     event_context_class->setup = sp_select_context_setup;
 100     event_context_class->set = sp_select_context_set;
 101     event_context_class->root_handler = sp_select_context_root_handler;
 102     event_context_class->item_handler = sp_select_context_item_handler;
 103 }
 104
 105 static void
 106 sp_select_context_init(SPSelectContext *sc)
 107 {
 108     sc->dragging = FALSE;
 109     sc->moved = FALSE;
 110     sc->button_press_shift = false;
 111     sc->button_press_ctrl = false;
 112     sc->button_press_alt = false;
 113     sc->is_cycling = false;
 114     sc->cycling_items = NULL;
 115     sc->cycling_items_selected_before = NULL;
 116     sc->cycling_cur_item = NULL;
 117     sc->_seltrans = NULL;
 118     sc->_describer = NULL;
 119
 120     // cursors in select context
 121     CursorSelectMouseover = sp_cursor_new_from_xpm(cursor_select_m_xpm , 1, 1);
 122     CursorSelectDragging = sp_cursor_new_from_xpm(cursor_select_d_xpm , 1, 1);
 123     // selection handles
 124     handles[0]  = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_scale_nw_xpm);
 125     handles[1]  = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_scale_ne_xpm);
 126     handles[2]  = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_scale_h_xpm);
 127     handles[3]  = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_scale_v_xpm);
 128     handles[4]  = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_rotate_nw_xpm);
 129     handles[5]  = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_rotate_n_xpm);
 130     handles[6]  = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_rotate_ne_xpm);
 131     handles[7]  = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_rotate_e_xpm);
 132     handles[8]  = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_rotate_se_xpm);
 133     handles[9]  = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_rotate_s_xpm);
 134     handles[10] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_rotate_sw_xpm);
 135     handles[11] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_rotate_w_xpm);
 136     handles[12] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_center_xpm);
 137 }
 138
 139 static void
 140 sp_select_context_dispose(GObject *object)
 141 {
 142     SPSelectContext *sc = SP_SELECT_CONTEXT(object);
 143     SPEventContext * ec = SP_EVENT_CONTEXT (object);
 144
 145     ec->enableGrDrag(false);
 146
 147     if (sc->grabbed) {
 148         sp_canvas_item_ungrab(sc->grabbed, GDK_CURRENT_TIME);
 149         sc->grabbed = NULL;
 150     }
 151
 152     delete sc->_seltrans;
 153     sc->_seltrans = NULL;
 154     delete sc->_describer;
 155     sc->_describer = NULL;
 156
 157     if (CursorSelectDragging) {
 158         gdk_cursor_unref (CursorSelectDragging);
 159         CursorSelectDragging = NULL;
 160     }
 161     if (CursorSelectMouseover) {
 162         gdk_cursor_unref (CursorSelectMouseover);
 163         CursorSelectMouseover = NULL;
 164     }
 165
 166     G_OBJECT_CLASS(parent_class)->dispose(object);
 167 }
 168
 169 static void
 170 sp_select_context_setup(SPEventContext *ec)
 171 {
 172     SPSelectContext *select_context = SP_SELECT_CONTEXT(ec);
 173
 174     if (((SPEventContextClass *) parent_class)->setup) {
 175         ((SPEventContextClass *) parent_class)->setup(ec);
 176     }
 177
 178     SPDesktop *desktop = ec->desktop;
 179
 180     select_context->_describer = new Inkscape::SelectionDescriber(
 181                 desktop->selection,
 182                 desktop->messageStack(),
 183                 _("Click selection to toggle scale/rotation handles"),
 184                 _("No objects selected. Click, Shift+click, Alt+scroll mouse on top of objects, or drag around objects to select.")
 185         );
 186
 187     select_context->_seltrans = new Inkscape::SelTrans(desktop);
 188
 189     sp_event_context_read(ec, "show");
 190     sp_event_context_read(ec, "transform");
 191
 192     Inkscape::Preferences *prefs = Inkscape::Preferences::get();
 193     if (prefs->getBool("/tools/select/gradientdrag")) {
 194         ec->enableGrDrag();
 195     }
 196 }
 197
 198 static void
 199 sp_select_context_set(SPEventContext *ec, Inkscape::Preferences::Entry *val)
 200 {
 201     SPSelectContext *sc = SP_SELECT_CONTEXT(ec);
 202     Glib::ustring path = val->getEntryName();
 203
 204     if (path == "show") {
 205         if (val->getString() == "outline") {
 206             sc->_seltrans->setShow(Inkscape::SelTrans::SHOW_OUTLINE);
 207         } else {
 208             sc->_seltrans->setShow(Inkscape::SelTrans::SHOW_CONTENT);
 209         }
 210     }
 211 }
 212
 213 static bool
 214 sp_select_context_abort(SPEventContext *event_context)
 215 {
 216     SPDesktop *desktop = event_context->desktop;
 217     SPSelectContext *sc = SP_SELECT_CONTEXT(event_context);
 218     Inkscape::SelTrans *seltrans = sc->_seltrans;
 219
 220     if (sc->dragging) {
 221         if (sc->moved) { // cancel dragging an object
 222             seltrans->ungrab();
 223             sc->moved = FALSE;
 224             sc->dragging = FALSE;
 225             sp_event_context_discard_delayed_snap_event(event_context);
 226             drag_escaped = 1;
 227
 228             if (sc->item) {
 229                 // only undo if the item is still valid
 230                 if (SP_OBJECT_DOCUMENT( SP_OBJECT(sc->item))) {
 231                     DocumentUndo::undo(sp_desktop_document(desktop));
 232                 }
 233
 234                 sp_object_unref( SP_OBJECT(sc->item), NULL);
 235             } else if (sc->button_press_ctrl) {
 236                 // NOTE:  This is a workaround to a bug.
 237                 // When the ctrl key is held, sc->item is not defined
 238                 // so in this case (only), we skip the object doc check
 239                 DocumentUndo::undo(sp_desktop_document(desktop));
 240             }
 241             sc->item = NULL;
 242
 243             SP_EVENT_CONTEXT(sc)->desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("Move canceled."));
 244             return true;
 245         }
 246     } else {
 247         if (Inkscape::Rubberband::get(desktop)->is_started()) {
 248             Inkscape::Rubberband::get(desktop)->stop();
 249             rb_escaped = 1;
 250             SP_EVENT_CONTEXT(sc)->defaultMessageContext()->clear();
 251             SP_EVENT_CONTEXT(sc)->desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("Selection canceled."));
 252             return true;
 253         }
 254     }
 255     return false;
 256 }
 257
 258 bool
 259 key_is_a_modifier (guint key) {
 260     return (key == GDK_Alt_L ||
 261                 key == GDK_Alt_R ||
 262                 key == GDK_Control_L ||
 263                 key == GDK_Control_R ||
 264                 key == GDK_Shift_L ||
 265                 key == GDK_Shift_R ||
 266                 key == GDK_Meta_L ||  // Meta is when you press Shift+Alt (at least on my machine)
 267             key == GDK_Meta_R);
 268 }
 269
 270 void
 271 sp_select_context_up_one_layer(SPDesktop *desktop)
 272 {
 273     /* Click in empty place, go up one level -- but don't leave a layer to root.
 274      *
 275      * (Rationale: we don't usually allow users to go to the root, since that
 276      * detracts from the layer metaphor: objects at the root level can in front
 277      * of or behind layers.  Whereas it's fine to go to the root if editing
 278      * a document that has no layers (e.g. a non-Inkscape document).)
 279      *
 280      * Once we support editing SVG "islands" (e.g. <svg> embedded in an xhtml
 281      * document), we might consider further restricting the below to disallow
 282      * leaving a layer to go to a non-layer.
 283      */
 284     SPObject *const current_layer = desktop->currentLayer();
 285     if (current_layer) {
 286         SPObject *const parent = SP_OBJECT_PARENT(current_layer);
 287         if ( parent
 288              && ( SP_OBJECT_PARENT(parent)
 289                   || !( SP_IS_GROUP(current_layer)
 290                         && ( SPGroup::LAYER
 291                              == SP_GROUP(current_layer)->layerMode() ) ) ) )
 292         {
 293             desktop->setCurrentLayer(parent);
 294             if (SP_IS_GROUP(current_layer) && SPGroup::LAYER != SP_GROUP(current_layer)->layerMode())
 295                 sp_desktop_selection(desktop)->set(current_layer);
 296         }
 297     }
 298 }
 299
 300 static gint
 301 sp_select_context_item_handler(SPEventContext *event_context, SPItem *item, GdkEvent *event)
 302 {
 303     gint ret = FALSE;
 304
 305     SPDesktop *desktop = event_context->desktop;
 306     SPSelectContext *sc = SP_SELECT_CONTEXT(event_context);
 307     Inkscape::SelTrans *seltrans = sc->_seltrans;
 308
 309     Inkscape::Preferences *prefs = Inkscape::Preferences::get();
 310     tolerance = prefs->getIntLimited("/options/dragtolerance/value", 0, 0, 100);
 311
 312     // make sure we still have valid objects to move around
 313     if (sc->item && SP_OBJECT_DOCUMENT( SP_OBJECT(sc->item))==NULL) {
 314         sp_select_context_abort(event_context);
 315     }
 316
 317     switch (event->type) {
 318         case GDK_BUTTON_PRESS:
 319             if (event->button.button == 1 && !event_context->space_panning) {
 320                 /* Left mousebutton */
 321
 322                 // save drag origin
 323                 xp = (gint) event->button.x;
 324                 yp = (gint) event->button.y;
 325                 within_tolerance = true;
 326
 327                 // remember what modifiers were on before button press
 328                 sc->button_press_shift = (event->button.state & GDK_SHIFT_MASK) ? true : false;
 329                 sc->button_press_ctrl = (event->button.state & GDK_CONTROL_MASK) ? true : false;
 330                 sc->button_press_alt = (event->button.state & GDK_MOD1_MASK) ? true : false;
 331
 332                 if (event->button.state & (GDK_SHIFT_MASK | GDK_CONTROL_MASK | GDK_MOD1_MASK)) {
 333                     // if shift or ctrl was pressed, do not move objects;
 334                     // pass the event to root handler which will perform rubberband, shift-click, ctrl-click, ctrl-drag
 335                 } else {
 336                     sc->dragging = TRUE;
 337                     sc->moved = FALSE;
 338
 339                     gdk_window_set_cursor(GTK_WIDGET(sp_desktop_canvas(desktop))->window, CursorSelectDragging);
 340
 341                     sp_canvas_force_full_redraw_after_interruptions(desktop->canvas, 5);
 342
 343                     // remember the clicked item in sc->item:
 344                     if (sc->item) {
 345                         sp_object_unref(sc->item, NULL);
 346                         sc->item = NULL;
 347                     }
 348                     sc->item = sp_event_context_find_item (desktop,
 349                                               Geom::Point(event->button.x, event->button.y), event->button.state & GDK_MOD1_MASK, FALSE);
 350                     sp_object_ref(sc->item, NULL);
 351
 352                     rb_escaped = drag_escaped = 0;
 353
 354                     if (sc->grabbed) {
 355                         sp_canvas_item_ungrab(sc->grabbed, event->button.time);
 356                         sc->grabbed = NULL;
 357                     }
 358                     sp_canvas_item_grab(SP_CANVAS_ITEM(desktop->drawing),
 359                                         GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK | GDK_BUTTON_RELEASE_MASK | GDK_BUTTON_PRESS_MASK |
 360                                         GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK,
 361                                         NULL, event->button.time);
 362                     sc->grabbed = SP_CANVAS_ITEM(desktop->drawing);
 363
 364                     sp_canvas_force_full_redraw_after_interruptions(desktop->canvas, 5);
 365
 366                     ret = TRUE;
 367                 }
 368             } else if (event->button.button == 3) {
 369                 // right click; do not eat it so that right-click menu can appear, but cancel dragging & rubberband
 370                 sp_select_context_abort(event_context);
 371             }
 372             break;
 373
 374         case GDK_ENTER_NOTIFY:
 375         {
 376             if (!desktop->isWaitingCursor() && !sc->dragging) {
 377                 gdk_window_set_cursor(GTK_WIDGET(sp_desktop_canvas(desktop))->window, CursorSelectMouseover);
 378             }
 379             break;
 380         }
 381
 382         case GDK_LEAVE_NOTIFY:
 383             if (!desktop->isWaitingCursor() && !sc->dragging)
 384                 gdk_window_set_cursor(GTK_WIDGET(sp_desktop_canvas(desktop))->window, event_context->cursor);
 385             break;
 386
 387         case GDK_KEY_PRESS:
 388             if (get_group0_keyval (&event->key) == GDK_space) {
 389                 if (sc->dragging && sc->grabbed) {
 390                     /* stamping mode: show content mode moving */
 391                     seltrans->stamp();
 392                     ret = TRUE;
 393                 }
 394             }
 395             break;
 396
 397         default:
 398             break;
 399     }
 400
 401     if (!ret) {
 402         if (((SPEventContextClass *) parent_class)->item_handler)
 403             ret = ((SPEventContextClass *) parent_class)->item_handler(event_context, item, event);
 404     }
 405
 406     return ret;
 407 }
 408
 409 static void
 410 sp_select_context_cycle_through_items(SPSelectContext *sc, Inkscape::Selection *selection, GdkEventScroll *scroll_event, bool shift_pressed) {
 411     if (!sc->cycling_cur_item)
 412         return;
 413
 414     NRArenaItem *arenaitem;
 415     SPDesktop *desktop = SP_EVENT_CONTEXT(sc)->desktop;
 416     SPItem *item = SP_ITEM(sc->cycling_cur_item->data);
 417
 418     // Deactivate current item
 419     if (!g_list_find(sc->cycling_items_selected_before, item) && selection->includes(item))
 420         selection->remove(item);
 421     arenaitem = item->get_arenaitem(desktop->dkey);
 422     nr_arena_item_set_opacity (arenaitem, 0.3);
 423
 424     // Find next item and activate it
 425     GList *next;
 426     if (scroll_event->direction == GDK_SCROLL_UP) {
 427         next = sc->cycling_cur_item->next;
 428         if (next == NULL)
 429             next = sc->cycling_items;
 430     } else {
 431         next = sc->cycling_cur_item->prev;
 432         if (next == NULL)
 433             next = g_list_last(sc->cycling_items);
 434     }
 435     sc->cycling_cur_item = next;
 436     item = SP_ITEM(sc->cycling_cur_item->data);
 437     arenaitem = item->get_arenaitem(desktop->dkey);
 438     nr_arena_item_set_opacity (arenaitem, 1.0);
 439
 440     if (shift_pressed)
 441         selection->add(item);
 442     else
 443         selection->set(item);
 444 }
 445
 446 static gint
 447 sp_select_context_root_handler(SPEventContext *event_context, GdkEvent *event)
 448 {
 449     SPItem *item = NULL;
 450     SPItem *item_at_point = NULL, *group_at_point = NULL, *item_in_group = NULL;
 451     gint ret = FALSE;
 452
 453     SPDesktop *desktop = event_context->desktop;
 454     SPSelectContext *sc = SP_SELECT_CONTEXT(event_context);
 455     Inkscape::SelTrans *seltrans = sc->_seltrans;
 456     Inkscape::Selection *selection = sp_desktop_selection(desktop);
 457     Inkscape::Preferences *prefs = Inkscape::Preferences::get();
 458
 459     // make sure we still have valid objects to move around
 460     if (sc->item && SP_OBJECT_DOCUMENT( SP_OBJECT(sc->item))==NULL) {
 461         sp_select_context_abort(event_context);
 462     }
 463
 464     switch (event->type) {
 465         case GDK_2BUTTON_PRESS:
 466             if (event->button.button == 1) {
 467                 if (!selection->isEmpty()) {
 468                     SPItem *clicked_item = (SPItem *) selection->itemList()->data;
 469                     if (SP_IS_GROUP(clicked_item) && !SP_IS_BOX3D(clicked_item)) { // enter group if it's not a 3D box
 470                         desktop->setCurrentLayer(reinterpret_cast<SPObject *>(clicked_item));
 471                         sp_desktop_selection(desktop)->clear();
 472                         sc->dragging = false;
 473                         sp_event_context_discard_delayed_snap_event(event_context);
 474
 475                         sp_canvas_end_forced_full_redraws(desktop->canvas);
 476                     } else { // switch tool
 477                         Geom::Point const button_pt(event->button.x, event->button.y);
 478                         Geom::Point const p(desktop->w2d(button_pt));
 479                         tools_switch_by_item (desktop, clicked_item, p);
 480                     }
 481                 } else {
 482                     sp_select_context_up_one_layer(desktop);
 483                 }
 484                 ret = TRUE;
 485             }
 486             break;
 487         case GDK_BUTTON_PRESS:
 488             if (event->button.button == 1 && !event_context->space_panning) {
 489
 490                 // save drag origin
 491                 xp = (gint) event->button.x;
 492                 yp = (gint) event->button.y;
 493                 within_tolerance = true;
 494
 495                 Geom::Point const button_pt(event->button.x, event->button.y);
 496                 Geom::Point const p(desktop->w2d(button_pt));
 497                 if (event->button.state & GDK_MOD1_MASK)
 498                     Inkscape::Rubberband::get(desktop)->setMode(RUBBERBAND_MODE_TOUCHPATH);
 499                 Inkscape::Rubberband::get(desktop)->start(desktop, p);
 500                 if (sc->grabbed) {
 501                     sp_canvas_item_ungrab(sc->grabbed, event->button.time);
 502                     sc->grabbed = NULL;
 503                 }
 504                 sp_canvas_item_grab(SP_CANVAS_ITEM(desktop->acetate),
 505                                     GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK | GDK_BUTTON_RELEASE_MASK | GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK | GDK_BUTTON_PRESS_MASK,
 506                                     NULL, event->button.time);
 507                 sc->grabbed = SP_CANVAS_ITEM(desktop->acetate);
 508
 509                 // remember what modifiers were on before button press
 510                 sc->button_press_shift = (event->button.state & GDK_SHIFT_MASK) ? true : false;
 511                 sc->button_press_ctrl = (event->button.state & GDK_CONTROL_MASK) ? true : false;
 512                 sc->button_press_alt = (event->button.state & GDK_MOD1_MASK) ? true : false;
 513
 514                 sc->moved = FALSE;
 515
 516                 rb_escaped = drag_escaped = 0;
 517
 518                 ret = TRUE;
 519             } else if (event->button.button == 3) {
 520                 // right click; do not eat it so that right-click menu can appear, but cancel dragging & rubberband
 521                 sp_select_context_abort(event_context);
 522             }
 523             break;
 524
 525         case GDK_MOTION_NOTIFY:
 526         {
 527             SPSelectContext *sc = SP_SELECT_CONTEXT(event_context);
 528             if (sc->is_cycling) {
 529                 // Abort cycle-select
 530                 NRArenaItem *arenaitem;
 531                 for (GList *l = sc->cycling_items; l != NULL; l = g_list_next(l)) {
 532                     arenaitem = item->get_arenaitem(desktop->dkey);
 533                     nr_arena_item_set_opacity (arenaitem, 1.0);
 534                 }
 535                 g_list_free(sc->cycling_items);
 536                 g_list_free(sc->cycling_items_selected_before);
 537                 sc->cycling_items = NULL;
 538                 sc->cycling_cur_item = NULL;
 539                 sc->is_cycling = false;
 540             }
 541
 542                 tolerance = prefs->getIntLimited("/options/dragtolerance/value", 0, 0, 100);
 543                 if (event->motion.state & GDK_BUTTON1_MASK && !event_context->space_panning) {
 544                 Geom::Point const motion_pt(event->motion.x, event->motion.y);
 545                 Geom::Point const p(desktop->w2d(motion_pt));
 546
 547                 if ( within_tolerance
 548                      && ( abs( (gint) event->motion.x - xp ) < tolerance )
 549                      && ( abs( (gint) event->motion.y - yp ) < tolerance ) ) {
 550                     break; // do not drag if we're within tolerance from origin
 551                 }
 552                 // Once the user has moved farther than tolerance from the original location
 553                 // (indicating they intend to move the object, not click), then always process the
 554                 // motion notify coordinates as given (no snapping back to origin)
 555                 within_tolerance = false;
 556
 557                 if (sc->button_press_ctrl || (sc->button_press_alt && !sc->button_press_shift && !selection->isEmpty())) {
 558                     // if it's not click and ctrl or alt was pressed (the latter with some selection
 559                     // but not with shift) we want to drag rather than rubberband
 560                         sc->dragging = TRUE;
 561                     gdk_window_set_cursor(GTK_WIDGET(sp_desktop_canvas(desktop))->window, CursorSelectDragging);
 562
 563                     sp_canvas_force_full_redraw_after_interruptions(desktop->canvas, 5);
 564                 }
 565
 566                 if (sc->dragging) {
 567                     /* User has dragged fast, so we get events on root (lauris)*/
 568                     // not only that; we will end up here when ctrl-dragging as well
 569                     // and also when we started within tolerance, but trespassed tolerance outside of item
 570                     Inkscape::Rubberband::get(desktop)->stop();
 571                     SP_EVENT_CONTEXT(sc)->defaultMessageContext()->clear();
 572                     item_at_point = desktop->getItemAtPoint(Geom::Point(event->button.x, event->button.y), FALSE);
 573                     if (!item_at_point) // if no item at this point, try at the click point (bug 1012200)
 574                         item_at_point = desktop->getItemAtPoint(Geom::Point(xp, yp), FALSE);
 575                     if (item_at_point || sc->moved || sc->button_press_alt) {
 576                         // drag only if starting from an item, or if something is already grabbed, or if alt-dragging
 577                         if (!sc->moved) {
 578                             item_in_group = desktop->getItemAtPoint(Geom::Point(event->button.x, event->button.y), TRUE);
 579                             group_at_point = desktop->getGroupAtPoint(Geom::Point(event->button.x, event->button.y));
 580                             if (SP_IS_LAYER(selection->single()))
 581                                 group_at_point = SP_GROUP(selection->single());
 582
 583                             // group-at-point is meant to be topmost item if it's a group,
 584                             // not topmost group of all items at point
 585                             if (group_at_point != item_in_group &&
 586                                 !(group_at_point && item_at_point &&
 587                                   group_at_point->isAncestorOf(item_at_point)))
 588                                 group_at_point = NULL;
 589
 590                             // if neither a group nor an item (possibly in a group) at point are selected, set selection to the item at point
 591                             if ((!item_in_group || !selection->includes(item_in_group)) &&
 592                                 (!group_at_point || !selection->includes(group_at_point))
 593                                 && !sc->button_press_alt) {
 594                                 // select what is under cursor
 595                                 if (!seltrans->isEmpty()) {
 596                                     seltrans->resetState();
 597                                 }
 598                                 // when simply ctrl-dragging, we don't want to go into groups
 599                                 if (item_at_point && !selection->includes(item_at_point))
 600                                     selection->set(item_at_point);
 601                             } // otherwise, do not change selection so that dragging selected-within-group items, as well as alt-dragging, is possible
 602                             seltrans->grab(p, -1, -1, FALSE, TRUE);
 603                             sc->moved = TRUE;
 604                         }
 605                         if (!seltrans->isEmpty())
 606                             seltrans->moveTo(p, event->button.state);
 607                         desktop->scroll_to_point(p);
 608                         gobble_motion_events(GDK_BUTTON1_MASK);
 609                         ret = TRUE;
 610                     } else {
 611                         sc->dragging = FALSE;
 612                         sp_event_context_discard_delayed_snap_event(event_context);
 613                         sp_canvas_end_forced_full_redraws(desktop->canvas);
 614                     }
 615                 } else {
 616                     if (Inkscape::Rubberband::get(desktop)->is_started()) {
 617                         Inkscape::Rubberband::get(desktop)->move(p);
 618                         if (Inkscape::Rubberband::get(desktop)->getMode() == RUBBERBAND_MODE_TOUCHPATH) {
 619                             event_context->defaultMessageContext()->set(Inkscape::NORMAL_MESSAGE, _("<b>Draw over</b> objects to select them; release <b>Alt</b> to switch to rubberband selection"));
 620                         } else {
 621                             event_context->defaultMessageContext()->set(Inkscape::NORMAL_MESSAGE, _("<b>Drag around</b> objects to select them; press <b>Alt</b> to switch to touch selection"));
 622                         }
 623                         gobble_motion_events(GDK_BUTTON1_MASK);
 624                     }
 625                 }
 626             }
 627             break;
 628         }
 629         case GDK_BUTTON_RELEASE:
 630             xp = yp = 0;
 631             if ((event->button.button == 1) && (sc->grabbed) && !event_context->space_panning) {
 632                 if (sc->dragging) {
 633                     if (sc->moved) {
 634                         // item has been moved
 635                         seltrans->ungrab();
 636                         sc->moved = FALSE;
 637                     } else if (sc->item && !drag_escaped) {
 638                         // item has not been moved -> simply a click, do selecting
 639                         if (!selection->isEmpty()) {
 640                             if (event->button.state & GDK_SHIFT_MASK) {
 641                                 // with shift, toggle selection
 642                                 seltrans->resetState();
 643                                 selection->toggle(sc->item);
 644                             } else {
 645                                 SPObject* single = selection->single();
 646                                 // without shift, increase state (i.e. toggle scale/rotation handles)
 647                                 if (selection->includes(sc->item)) {
 648                                     seltrans->increaseState();
 649                                 } else if (SP_IS_LAYER(single) && single->isAncestorOf(sc->item)) {
 650                                     seltrans->increaseState();
 651                                 } else {
 652                                     seltrans->resetState();
 653                                     selection->set(sc->item);
 654                                 }
 655                             }
 656                         } else { // simple or shift click, no previous selection
 657                             seltrans->resetState();
 658                             selection->set(sc->item);
 659                         }
 660                     }
 661                     sc->dragging = FALSE;
 662                     gdk_window_set_cursor(GTK_WIDGET(sp_desktop_canvas(desktop))->window, CursorSelectMouseover);
 663                     sp_event_context_discard_delayed_snap_event(event_context);
 664                     sp_canvas_end_forced_full_redraws(desktop->canvas);
 665
 666                     if (sc->item) {
 667                         sp_object_unref( SP_OBJECT(sc->item), NULL);
 668                     }
 669                     sc->item = NULL;
 670                 } else {
 671                     Inkscape::Rubberband *r = Inkscape::Rubberband::get(desktop);
 672                     if (r->is_started() && !within_tolerance) {
 673                         // this was a rubberband drag
 674                         GSList *items = NULL;
 675                         if (r->getMode() == RUBBERBAND_MODE_RECT) {
 676                             Geom::OptRect const b = r->getRectangle();
 677                             items = sp_desktop_document(desktop)->getItemsInBox(desktop->dkey, *b);
 678                         } else if (r->getMode() == RUBBERBAND_MODE_TOUCHPATH) {
 679                             items = sp_desktop_document(desktop)->getItemsAtPoints(desktop->dkey, r->getPoints());
 680                         }
 681
 682                         seltrans->resetState();
 683                         r->stop();
 684                         SP_EVENT_CONTEXT(sc)->defaultMessageContext()->clear();
 685
 686                         if (event->button.state & GDK_SHIFT_MASK) {
 687                             // with shift, add to selection
 688                             selection->addList (items);
 689                         } else {
 690                             // without shift, simply select anew
 691                             selection->setList (items);
 692                         }
 693                         g_slist_free (items);
 694                     } else { // it was just a click, or a too small rubberband
 695                         r->stop();
 696                         if (sc->button_press_shift && !rb_escaped && !drag_escaped) {
 697                             // this was a shift+click or alt+shift+click, select what was clicked upon
 698
 699                             sc->button_press_shift = false;
 700
 701                             if (sc->button_press_ctrl) {
 702                                 // go into groups, honoring Alt
 703                                 item = sp_event_context_find_item (desktop,
 704                                                    Geom::Point(event->button.x, event->button.y), event->button.state & GDK_MOD1_MASK, TRUE);
 705                                 sc->button_press_ctrl = FALSE;
 706                             } else {
 707                                 // don't go into groups, honoring Alt
 708                                 item = sp_event_context_find_item (desktop,
 709                                                    Geom::Point(event->button.x, event->button.y), event->button.state & GDK_MOD1_MASK, FALSE);
 710                             }
 711
 712                             if (item) {
 713                                 selection->toggle(item);
 714                                 item = NULL;
 715                             }
 716
 717                         } else if ((sc->button_press_ctrl || sc->button_press_alt) && !rb_escaped && !drag_escaped) { // ctrl+click, alt+click
 718
 719                             item = sp_event_context_find_item (desktop,
 720                                          Geom::Point(event->button.x, event->button.y), sc->button_press_alt, sc->button_press_ctrl);
 721
 722                             sc->button_press_ctrl = FALSE;
 723                             sc->button_press_alt = FALSE;
 724
 725                             if (item) {
 726                                 if (selection->includes(item)) {
 727                                     seltrans->increaseState();
 728                                 } else {
 729                                     seltrans->resetState();
 730                                     selection->set(item);
 731                                 }
 732                                 item = NULL;
 733                             }
 734
 735                         } else { // click without shift, simply deselect, unless with Alt or something was cancelled
 736                             if (!selection->isEmpty()) {
 737                                 if (!(rb_escaped) && !(drag_escaped) && !(event->button.state & GDK_MOD1_MASK))
 738                                     selection->clear();
 739                                 rb_escaped = 0;
 740                                 ret = TRUE;
 741                             }
 742                         }
 743                     }
 744                     ret = TRUE;
 745                 }
 746                 if (sc->grabbed) {
 747                     sp_canvas_item_ungrab(sc->grabbed, event->button.time);
 748                     sc->grabbed = NULL;
 749                 }
 750
 751                 desktop->updateNow();
 752             }
 753             if (event->button.button == 1) {
 754                 Inkscape::Rubberband::get(desktop)->stop(); // might have been started in another tool!
 755             }
 756             sc->button_press_shift = false;
 757             sc->button_press_ctrl = false;
 758             sc->button_press_alt = false;
 759             break;
 760
 761         case GDK_SCROLL:
 762         {
 763             SPSelectContext *sc = SP_SELECT_CONTEXT(event_context);
 764             GdkEventScroll *scroll_event = (GdkEventScroll*) event;
 765
 766             if (scroll_event->state & GDK_MOD1_MASK) { // alt modified pressed
 767                 bool shift_pressed = scroll_event->state & GDK_SHIFT_MASK;
 768
 769                 if(sc->is_cycling == false) {
 770                     // Build a list of items underneath the mouse pointer (for cycle-selection) and reduce their opacity
 771                     Geom::Point p = desktop->d2w(desktop->point());
 772                     SPItem *item = desktop->getItemAtPoint(p, true, NULL);
 773                     while(item != NULL) {
 774                         sc->cycling_items = g_list_append(sc->cycling_items, item);
 775                         if (selection->includes(item)) {
 776                             // already selected items are stored separately, too
 777                             sc->cycling_items_selected_before = g_list_append(sc->cycling_items_selected_before, item);
 778                         }
 779                         NRArenaItem *arenaitem = item->get_arenaitem(desktop->dkey);
 780                         nr_arena_item_set_opacity (arenaitem, 0.3);
 781
 782                         item = desktop->getItemAtPoint(p, true, item);
 783                     }
 784                     // Here we set the current item to the bottommost one so that the cycling step below re-starts at the top
 785                     sc->cycling_cur_item = g_list_last(sc->cycling_items);
 786                     sc->is_cycling = true;
 787                 }
 788
 789                 // Cycle through the items underneath the mouse pointer, one-by-one
 790                 sp_select_context_cycle_through_items(sc, selection, scroll_event, shift_pressed);
 791
 792                 ret = TRUE;
 793             }
 794             break;
 795         }
 796
 797         case GDK_KEY_PRESS: // keybindings for select context
 798
 799                         {
 800                         {
 801                 guint keyval = get_group0_keyval(&event->key);
 802             bool alt = ( MOD__ALT
 803                                     || (keyval == GDK_Alt_L)
 804                                     || (keyval == GDK_Alt_R)
 805                                     || (keyval == GDK_Meta_L)
 806                                     || (keyval == GDK_Meta_R));
 807
 808             if (!key_is_a_modifier (keyval)) {
 809                     event_context->defaultMessageContext()->clear();
 810             } else if (sc->grabbed || seltrans->isGrabbed()) {
 811                 if (Inkscape::Rubberband::get(desktop)->is_started()) {
 812                     // if Alt then change cursor to moving cursor:
 813                     if (alt) {
 814                         Inkscape::Rubberband::get(desktop)->setMode(RUBBERBAND_MODE_TOUCHPATH);
 815                     }
 816                 } else {
 817                 // do not change the statusbar text when mousekey is down to move or transform the object,
 818                 // because the statusbar text is already updated somewhere else.
 819                    break;
 820                 }
 821             } else {
 822                     sp_event_show_modifier_tip (event_context->defaultMessageContext(), event,
 823                                                 _("<b>Ctrl</b>: click to select in groups; drag to move hor/vert"),
 824                                                 _("<b>Shift</b>: click to toggle select; drag for rubberband selection"),
 825                                                 _("<b>Alt</b>: click to select under; scroll mouse-wheel to cycle-select; drag to move selected or select by touch"));
 826                     // if Alt and nonempty selection, show moving cursor ("move selected"):
 827                     if (alt && !selection->isEmpty() && !desktop->isWaitingCursor()) {
 828                         gdk_window_set_cursor(GTK_WIDGET(sp_desktop_canvas(desktop))->window, CursorSelectDragging);
 829                     }
 830                     //*/
 831                     break;
 832             }
 833                         }
 834
 835             gdouble const nudge = prefs->getDoubleLimited("/options/nudgedistance/value", 2, 0, 1000); // in px
 836                         gdouble const offset = prefs->getDoubleLimited("/options/defaultscale/value", 2, 0, 1000);
 837                         int const snaps = prefs->getInt("/options/rotationsnapsperpi/value", 12);
 838
 839                         switch (get_group0_keyval (&event->key)) {
 840                 case GDK_Left: // move selection left
 841                 case GDK_KP_Left:
 842                 case GDK_KP_4:
 843                     if (!MOD__CTRL) { // not ctrl
 844                         gint mul = 1 + gobble_key_events(
 845                             get_group0_keyval(&event->key), 0); // with any mask
 846                         if (MOD__ALT) { // alt
 847                             if (MOD__SHIFT) sp_selection_move_screen(desktop, mul*-10, 0); // shift
 848                             else sp_selection_move_screen(desktop, mul*-1, 0); // no shift
 849                         }
 850                         else { // no alt
 851                             if (MOD__SHIFT) sp_selection_move(desktop, mul*-10*nudge, 0); // shift
 852                             else sp_selection_move(desktop, mul*-nudge, 0); // no shift
 853                         }
 854                         ret = TRUE;
 855                     }
 856                     break;
 857                 case GDK_Up: // move selection up
 858                 case GDK_KP_Up:
 859                 case GDK_KP_8:
 860                     if (!MOD__CTRL) { // not ctrl
 861                         gint mul = 1 + gobble_key_events(
 862                             get_group0_keyval(&event->key), 0); // with any mask
 863                         if (MOD__ALT) { // alt
 864                             if (MOD__SHIFT) sp_selection_move_screen(desktop, 0, mul*10); // shift
 865                             else sp_selection_move_screen(desktop, 0, mul*1); // no shift
 866                         }
 867                         else { // no alt
 868                             if (MOD__SHIFT) sp_selection_move(desktop, 0, mul*10*nudge); // shift
 869                             else sp_selection_move(desktop, 0, mul*nudge); // no shift
 870                         }
 871                         ret = TRUE;
 872                     }
 873                     break;
 874                 case GDK_Right: // move selection right
 875                 case GDK_KP_Right:
 876                 case GDK_KP_6:
 877                     if (!MOD__CTRL) { // not ctrl
 878                         gint mul = 1 + gobble_key_events(
 879                             get_group0_keyval(&event->key), 0); // with any mask
 880                         if (MOD__ALT) { // alt
 881                             if (MOD__SHIFT) sp_selection_move_screen(desktop, mul*10, 0); // shift
 882                             else sp_selection_move_screen(desktop, mul*1, 0); // no shift
 883                         }
 884                         else { // no alt
 885                             if (MOD__SHIFT) sp_selection_move(desktop, mul*10*nudge, 0); // shift
 886                             else sp_selection_move(desktop, mul*nudge, 0); // no shift
 887                         }
 888                         ret = TRUE;
 889                     }
 890                     break;
 891                 case GDK_Down: // move selection down
 892                 case GDK_KP_Down:
 893                 case GDK_KP_2:
 894                     if (!MOD__CTRL) { // not ctrl
 895                         gint mul = 1 + gobble_key_events(
 896                             get_group0_keyval(&event->key), 0); // with any mask
 897                         if (MOD__ALT) { // alt
 898                             if (MOD__SHIFT) sp_selection_move_screen(desktop, 0, mul*-10); // shift
 899                             else sp_selection_move_screen(desktop, 0, mul*-1); // no shift
 900                         }
 901                         else { // no alt
 902                             if (MOD__SHIFT) sp_selection_move(desktop, 0, mul*-10*nudge); // shift
 903                             else sp_selection_move(desktop, 0, mul*-nudge); // no shift
 904                         }
 905                         ret = TRUE;
 906                     }
 907                     break;
 908                 case GDK_Escape:
 909                     if (!sp_select_context_abort(event_context))
 910                         selection->clear();
 911                     ret = TRUE;
 912                     break;
 913
 914                 case GDK_a:
 915                 case GDK_A:
 916                     if (MOD__CTRL_ONLY) {
 917                         sp_edit_select_all(desktop);
 918                         ret = TRUE;
 919                     }
 920                     break;
 921                 case GDK_space:
 922                     /* stamping mode: show outline mode moving */
 923                     /* FIXME: Is next condition ok? (lauris) */
 924                     if (sc->dragging && sc->grabbed) {
 925                         seltrans->stamp();
 926                         ret = TRUE;
 927                     }
 928                     break;
 929                 case GDK_x:
 930                 case GDK_X:
 931                     if (MOD__ALT_ONLY) {
 932                         desktop->setToolboxFocusTo ("altx");
 933                         ret = TRUE;
 934                     }
 935                     break;
 936                 case GDK_bracketleft:
 937                     if (MOD__ALT) {
 938                         gint mul = 1 + gobble_key_events(
 939                             get_group0_keyval(&event->key), 0); // with any mask
 940                         sp_selection_rotate_screen(selection, mul*1);
 941                     } else if (MOD__CTRL) {
 942                         sp_selection_rotate(selection, 90);
 943                     } else if (snaps) {
 944                         sp_selection_rotate(selection, 180/snaps);
 945                     }
 946                     ret = TRUE;
 947                     break;
 948                 case GDK_bracketright:
 949                     if (MOD__ALT) {
 950                         gint mul = 1 + gobble_key_events(
 951                             get_group0_keyval(&event->key), 0); // with any mask
 952                         sp_selection_rotate_screen(selection, -1*mul);
 953                     } else if (MOD__CTRL) {
 954                         sp_selection_rotate(selection, -90);
 955                     } else if (snaps) {
 956                         sp_selection_rotate(selection, -180/snaps);
 957                     }
 958                     ret = TRUE;
 959                     break;
 960                 case GDK_less:
 961                 case GDK_comma:
 962                     if (MOD__ALT) {
 963                         gint mul = 1 + gobble_key_events(
 964                             get_group0_keyval(&event->key), 0); // with any mask
 965                         sp_selection_scale_screen(selection, -2*mul);
 966                     } else if (MOD__CTRL) {
 967                         sp_selection_scale_times(selection, 0.5);
 968                     } else {
 969                         gint mul = 1 + gobble_key_events(
 970                             get_group0_keyval(&event->key), 0); // with any mask
 971                         sp_selection_scale(selection, -offset*mul);
 972                     }
 973                     ret = TRUE;
 974                     break;
 975                 case GDK_greater:
 976                 case GDK_period:
 977                     if (MOD__ALT) {
 978                         gint mul = 1 + gobble_key_events(
 979                             get_group0_keyval(&event->key), 0); // with any mask
 980                         sp_selection_scale_screen(selection, 2*mul);
 981                     } else if (MOD__CTRL) {
 982                         sp_selection_scale_times(selection, 2);
 983                     } else {
 984                         gint mul = 1 + gobble_key_events(
 985                             get_group0_keyval(&event->key), 0); // with any mask
 986                         sp_selection_scale(selection, offset*mul);
 987                     }
 988                     ret = TRUE;
 989                     break;
 990                 case GDK_Return:
 991                     if (MOD__CTRL_ONLY) {
 992                         if (selection->singleItem()) {
 993                             SPItem *clicked_item = selection->singleItem();
 994                             if ( SP_IS_GROUP(clicked_item) ||
 995                                  SP_IS_BOX3D(clicked_item)) { // enter group or a 3D box
 996                                 desktop->setCurrentLayer(reinterpret_cast<SPObject *>(clicked_item));
 997                                 sp_desktop_selection(desktop)->clear();
 998                             } else {
 999                                 SP_EVENT_CONTEXT(sc)->desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("Selected object is not a group. Cannot enter."));
1000                             }
1001                         }
1002                         ret = TRUE;
1003                     }
1004                     break;
1005                 case GDK_BackSpace:
1006                     if (MOD__CTRL_ONLY) {
1007                         sp_select_context_up_one_layer(desktop);
1008                         ret = TRUE;
1009                     }
1010                     break;
1011                 case GDK_s:
1012                 case GDK_S:
1013                     if (MOD__SHIFT_ONLY) {
1014                         if (!selection->isEmpty()) {
1015                             seltrans->increaseState();
1016                         }
1017                         ret = TRUE;
1018                     }
1019                     break;
1020                 case GDK_g:
1021                 case GDK_G:
1022                     if (MOD__SHIFT_ONLY) {
1023                         sp_selection_to_guides(desktop);
1024                         ret = true;
1025                     }
1026                     break;
1027                 default:
1028                     break;
1029             }
1030             break;
1031                         }
1032         case GDK_KEY_RELEASE:
1033             {
1034             guint keyval = get_group0_keyval(&event->key);
1035             if (key_is_a_modifier (keyval))
1036                 event_context->defaultMessageContext()->clear();
1037
1038             bool alt = ( MOD__ALT
1039                          || (keyval == GDK_Alt_L)
1040                          || (keyval == GDK_Alt_R)
1041                          || (keyval == GDK_Meta_L)
1042                          || (keyval == GDK_Meta_R));
1043
1044             if (Inkscape::Rubberband::get(desktop)->is_started()) {
1045                 // if Alt then change cursor to moving cursor:
1046                 if (alt) {
1047                     Inkscape::Rubberband::get(desktop)->setMode(RUBBERBAND_MODE_RECT);
1048                 }
1049             } else {
1050                 if (alt && sc->is_cycling) {
1051                     // quit cycle-selection and reset opacities
1052                     SPSelectContext *sc = SP_SELECT_CONTEXT(event_context);
1053                     NRArenaItem *arenaitem;
1054                     for (GList *l = sc->cycling_items; l != NULL; l = g_list_next(l)) {
1055                         arenaitem = SP_ITEM(l->data)->get_arenaitem(desktop->dkey);
1056                         nr_arena_item_set_opacity (arenaitem, 1.0);
1057                     }
1058                     g_list_free(sc->cycling_items);
1059                     g_list_free(sc->cycling_items_selected_before);
1060                     sc->cycling_items = NULL;
1061                     sc->cycling_items_selected_before = NULL;
1062                     sc->cycling_cur_item = NULL;
1063                     sc->is_cycling = false;
1064                 }
1065             }
1066
1067             }
1068             // set cursor to default.
1069             if (!desktop->isWaitingCursor()) {
1070                 gdk_window_set_cursor(GTK_WIDGET(sp_desktop_canvas(desktop))->window, event_context->cursor);
1071             }
1072             break;
1073         default:
1074             break;
1075     }
1076
1077     if (!ret) {
1078         if (((SPEventContextClass *) parent_class)->root_handler)
1079             ret = ((SPEventContextClass *) parent_class)->root_handler(event_context, event);
1080     }
1081
1082     return ret;
1083 }
1084
1085
1086 /*
1087   Local Variables:
1088   mode:c++
1089   c-file-style:"stroustrup"
1090   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1091   indent-tabs-mode:nil
1092   fill-column:99
1093   End:
1094 */
1095 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :