src/box3d-context.cpp

   1 #define __SP_3DBOX_CONTEXT_C__
   2
   3 /*
   4  * 3D box drawing context
   5  *
   6  * Author:
   7  *   Lauris Kaplinski <lauris@kaplinski.com>
   8  *   bulia byak <buliabyak@users.sf.net>
   9  *
  10  * Copyright (C) 2007      Maximilian Albert <Anhalter42@gmx.de>
  11  * Copyright (C) 2006      Johan Engelen <johan@shouraizou.nl>
  12  * Copyright (C) 2000-2005 authors
  13  * Copyright (C) 2000-2001 Ximian, Inc.
  14  *
  15  * Released under GNU GPL, read the file 'COPYING' for more information
  16  */
  17
  18 #include "config.h"
  19
  20 #include <gdk/gdkkeysyms.h>
  21
  22 #include "macros.h"
  23 #include "display/sp-canvas.h"
  24 #include "document.h"
  25 #include "sp-namedview.h"
  26 #include "selection.h"
  27 #include "desktop-handles.h"
  28 #include "snap.h"
  29 #include "display/curve.h"
  30 #include "desktop.h"
  31 #include "message-context.h"
  32 #include "pixmaps/cursor-rect.xpm"
  33 #include "box3d.h"
  34 #include "box3d-context.h"
  35 #include "sp-metrics.h"
  36 #include <glibmm/i18n.h>
  37 #include "object-edit.h"
  38 #include "xml/repr.h"
  39 #include "xml/node-event-vector.h"
  40 #include "prefs-utils.h"
  41 #include "context-fns.h"
  42
  43 static void sp_3dbox_context_class_init(SP3DBoxContextClass *klass);
  44 static void sp_3dbox_context_init(SP3DBoxContext *box3d_context);
  45 static void sp_3dbox_context_dispose(GObject *object);
  46
  47 static void sp_3dbox_context_setup(SPEventContext *ec);
  48 static void sp_3dbox_context_set(SPEventContext *ec, gchar const *key, gchar const *val);
  49
  50 static gint sp_3dbox_context_root_handler(SPEventContext *event_context, GdkEvent *event);
  51 static gint sp_3dbox_context_item_handler(SPEventContext *event_context, SPItem *item, GdkEvent *event);
  52
  53 static void sp_3dbox_drag(SP3DBoxContext &bc, guint state);
  54 static void sp_3dbox_finish(SP3DBoxContext *bc);
  55
  56 static SPEventContextClass *parent_class;
  57
  58
  59 GtkType sp_3dbox_context_get_type()
  60 {
  61     static GType type = 0;
  62     if (!type) {
  63         GTypeInfo info = {
  64             sizeof(SP3DBoxContextClass),
  65             NULL, NULL,
  66             (GClassInitFunc) sp_3dbox_context_class_init,
  67             NULL, NULL,
  68             sizeof(SP3DBoxContext),
  69             4,
  70             (GInstanceInitFunc) sp_3dbox_context_init,
  71             NULL,    /* value_table */
  72         };
  73         type = g_type_register_static(SP_TYPE_EVENT_CONTEXT, "SP3DBoxContext", &info, (GTypeFlags) 0);
  74     }
  75     return type;
  76 }
  77
  78 static void sp_3dbox_context_class_init(SP3DBoxContextClass *klass)
  79 {
  80     GObjectClass *object_class = (GObjectClass *) klass;
  81     SPEventContextClass *event_context_class = (SPEventContextClass *) klass;
  82
  83     parent_class = (SPEventContextClass *) g_type_class_peek_parent(klass);
  84
  85     object_class->dispose = sp_3dbox_context_dispose;
  86
  87     event_context_class->setup = sp_3dbox_context_setup;
  88     event_context_class->set = sp_3dbox_context_set;
  89     event_context_class->root_handler  = sp_3dbox_context_root_handler;
  90     event_context_class->item_handler  = sp_3dbox_context_item_handler;
  91 }
  92
  93 guint SP3DBoxContext::number_of_handles = 3;
  94
  95 static void sp_3dbox_context_init(SP3DBoxContext *box3d_context)
  96 {
  97     SPEventContext *event_context = SP_EVENT_CONTEXT(box3d_context);
  98
  99     event_context->cursor_shape = cursor_rect_xpm;
 100     event_context->hot_x = 4;
 101     event_context->hot_y = 4;
 102     event_context->xp = 0;
 103     event_context->yp = 0;
 104     event_context->tolerance = 0;
 105     event_context->within_tolerance = false;
 106     event_context->item_to_select = NULL;
 107
 108     event_context->shape_repr = NULL;
 109     event_context->shape_knot_holder = NULL;
 110
 111     box3d_context->item = NULL;
 112
 113     box3d_context->ctrl_dragged = false;
 114     box3d_context->extruded = false;
 115
 116     box3d_context->_vpdrag = NULL;
 117
 118     new (&box3d_context->sel_changed_connection) sigc::connection();
 119 }
 120
 121 static void sp_3dbox_context_dispose(GObject *object)
 122 {
 123     SP3DBoxContext *bc = SP_3DBOX_CONTEXT(object);
 124     SPEventContext *ec = SP_EVENT_CONTEXT(object);
 125
 126     ec->enableGrDrag(false);
 127
 128     delete (bc->_vpdrag);
 129     bc->_vpdrag = NULL;
 130
 131     bc->sel_changed_connection.disconnect();
 132     bc->sel_changed_connection.~connection();
 133
 134     /* fixme: This is necessary because we do not grab */
 135     if (bc->item) {
 136         sp_3dbox_finish(bc);
 137     }
 138
 139     if (ec->shape_knot_holder) {
 140         sp_knot_holder_destroy(ec->shape_knot_holder);
 141         ec->shape_knot_holder = NULL;
 142     }
 143
 144     if (ec->shape_repr) { // remove old listener
 145         sp_repr_remove_listener_by_data(ec->shape_repr, ec);
 146         Inkscape::GC::release(ec->shape_repr);
 147         ec->shape_repr = 0;
 148     }
 149
 150     if (bc->_message_context) {
 151         delete bc->_message_context;
 152     }
 153
 154     G_OBJECT_CLASS(parent_class)->dispose(object);
 155 }
 156
 157 static Inkscape::XML::NodeEventVector ec_shape_repr_events = {
 158     NULL, /* child_added */
 159     NULL, /* child_removed */
 160     ec_shape_event_attr_changed,
 161     NULL, /* content_changed */
 162     NULL  /* order_changed */
 163 };
 164
 165 /**
 166 \brief  Callback that processes the "changed" signal on the selection;
 167 destroys old and creates new knotholder
 168 */
 169 void sp_3dbox_context_selection_changed(Inkscape::Selection *selection, gpointer data)
 170 {
 171     SP3DBoxContext *bc = SP_3DBOX_CONTEXT(data);
 172     SPEventContext *ec = SP_EVENT_CONTEXT(bc);
 173
 174     if (ec->shape_knot_holder) { // destroy knotholder
 175         sp_knot_holder_destroy(ec->shape_knot_holder);
 176         ec->shape_knot_holder = NULL;
 177     }
 178
 179     if (ec->shape_repr) { // remove old listener
 180         sp_repr_remove_listener_by_data(ec->shape_repr, ec);
 181         Inkscape::GC::release(ec->shape_repr);
 182         ec->shape_repr = 0;
 183     }
 184
 185     SPItem *item = selection->singleItem();
 186     if (item) {
 187         ec->shape_knot_holder = sp_item_knot_holder(item, ec->desktop);
 188         Inkscape::XML::Node *shape_repr = SP_OBJECT_REPR(item);
 189         if (shape_repr) {
 190             ec->shape_repr = shape_repr;
 191             Inkscape::GC::anchor(shape_repr);
 192             sp_repr_add_listener(shape_repr, &ec_shape_repr_events, ec);
 193         }
 194         if (SP_IS_3DBOX (item)) {
 195             Box3D::Perspective3D::current_perspective = Box3D::get_persp_of_box (SP_3DBOX (item));
 196         }
 197     } else {
 198         /* If several boxes sharing the same perspective are selected,
 199            we can still set the current selection accordingly */
 200         std::set<Box3D::Perspective3D *> perspectives;
 201         for (GSList *i = (GSList *) selection->itemList(); i != NULL; i = i->next) {
 202             if (SP_IS_3DBOX (i->data)) {
 203                 perspectives.insert (Box3D::get_persp_of_box (SP_3DBOX (i->data)));
 204             }
 205         }
 206         if (perspectives.size() == 1) {
 207             Box3D::Perspective3D::current_perspective = *(perspectives.begin());
 208         }
 209         // TODO: What to do if several boxes with different perspectives are selected?
 210     }
 211 }
 212
 213 static void sp_3dbox_context_setup(SPEventContext *ec)
 214 {
 215     SP3DBoxContext *bc = SP_3DBOX_CONTEXT(ec);
 216
 217     if (((SPEventContextClass *) parent_class)->setup) {
 218         ((SPEventContextClass *) parent_class)->setup(ec);
 219     }
 220
 221     SPItem *item = sp_desktop_selection(ec->desktop)->singleItem();
 222     if (item) {
 223         ec->shape_knot_holder = sp_item_knot_holder(item, ec->desktop);
 224         Inkscape::XML::Node *shape_repr = SP_OBJECT_REPR(item);
 225         if (shape_repr) {
 226             ec->shape_repr = shape_repr;
 227             Inkscape::GC::anchor(shape_repr);
 228             sp_repr_add_listener(shape_repr, &ec_shape_repr_events, ec);
 229         }
 230     }
 231
 232     bc->sel_changed_connection.disconnect();
 233     bc->sel_changed_connection = sp_desktop_selection(ec->desktop)->connectChanged(
 234         sigc::bind(sigc::ptr_fun(&sp_3dbox_context_selection_changed), (gpointer)bc)
 235     );
 236
 237     bc->_vpdrag = new Box3D::VPDrag(ec->desktop);
 238
 239     if (prefs_get_int_attribute("tools.shapes", "selcue", 0) != 0) {
 240         ec->enableSelectionCue();
 241     }
 242
 243     if (prefs_get_int_attribute("tools.shapes", "gradientdrag", 0) != 0) {
 244         ec->enableGrDrag();
 245     }
 246
 247     bc->_message_context = new Inkscape::MessageContext((ec->desktop)->messageStack());
 248 }
 249
 250 static void sp_3dbox_context_set(SPEventContext *ec, gchar const *key, gchar const *val)
 251 {
 252     //SP3DBoxContext *bc = SP_3DBOX_CONTEXT(ec);
 253
 254     /* fixme: Proper error handling for non-numeric data.  Use a locale-independent function like
 255      * g_ascii_strtod (or a thin wrapper that does the right thing for invalid values inf/nan). */
 256     /**
 257     if ( strcmp(key, "rx") == 0 ) {
 258         bc->rx = ( val
 259                          ? g_ascii_strtod (val, NULL)
 260                          : 0.0 );
 261     } else if ( strcmp(key, "ry") == 0 ) {
 262         bc->ry = ( val
 263                          ? g_ascii_strtod (val, NULL)
 264                          : 0.0 );
 265     }
 266     **/
 267 }
 268
 269 static gint sp_3dbox_context_item_handler(SPEventContext *event_context, SPItem *item, GdkEvent *event)
 270 {
 271     SPDesktop *desktop = event_context->desktop;
 272
 273     gint ret = FALSE;
 274
 275     switch (event->type) {
 276     case GDK_BUTTON_PRESS:
 277         if ( event->button.button == 1 && !event_context->space_panning) {
 278             Inkscape::setup_for_drag_start(desktop, event_context, event);
 279             ret = TRUE;
 280         }
 281         break;
 282         // motion and release are always on root (why?)
 283     default:
 284         break;
 285     }
 286
 287     if (((SPEventContextClass *) parent_class)->item_handler) {
 288         ret = ((SPEventContextClass *) parent_class)->item_handler(event_context, item, event);
 289     }
 290
 291     return ret;
 292 }
 293
 294 static gint sp_3dbox_context_root_handler(SPEventContext *event_context, GdkEvent *event)
 295 {
 296     static bool dragging;
 297
 298     SPDesktop *desktop = event_context->desktop;
 299     Inkscape::Selection *selection = sp_desktop_selection (desktop);
 300
 301     SP3DBoxContext *bc = SP_3DBOX_CONTEXT(event_context);
 302
 303     event_context->tolerance = prefs_get_int_attribute_limited("options.dragtolerance", "value", 0, 0, 100);
 304
 305     gint ret = FALSE;
 306     switch (event->type) {
 307     case GDK_BUTTON_PRESS:
 308         if ( event->button.button == 1  && !event_context->space_panning) {
 309             NR::Point const button_w(event->button.x,
 310                                      event->button.y);
 311
 312             // save drag origin
 313             event_context->xp = (gint) button_w[NR::X];
 314             event_context->yp = (gint) button_w[NR::Y];
 315             event_context->within_tolerance = true;
 316
 317             // remember clicked item, disregarding groups, honoring Alt
 318             event_context->item_to_select = sp_event_context_find_item (desktop, button_w, event->button.state & GDK_MOD1_MASK, event->button.state & GDK_CONTROL_MASK);
 319
 320             dragging = true;
 321
 322             /* Position center */
 323             NR::Point const button_dt(desktop->w2d(button_w));
 324             bc->drag_origin = button_dt;
 325             bc->drag_ptB = button_dt;
 326             bc->drag_ptC = button_dt;
 327
 328             /* Snap center */
 329             SnapManager const &m = desktop->namedview->snap_manager;
 330             bc->center = m.freeSnap(Inkscape::Snapper::SNAPPOINT_NODE | Inkscape::Snapper::SNAPPOINT_BBOX,
 331                                     button_dt, bc->item).getPoint();
 332
 333             sp_canvas_item_grab(SP_CANVAS_ITEM(desktop->acetate),
 334                                 ( GDK_KEY_PRESS_MASK |
 335                                   GDK_BUTTON_RELEASE_MASK       |
 336                                   GDK_POINTER_MOTION_MASK       |
 337                                   GDK_BUTTON_PRESS_MASK ),
 338                                 NULL, event->button.time);
 339             ret = TRUE;
 340         }
 341         break;
 342     case GDK_MOTION_NOTIFY:
 343         if ( dragging
 344              && ( event->motion.state & GDK_BUTTON1_MASK )  && !event_context->space_panning)
 345         {
 346             if ( event_context->within_tolerance
 347                  && ( abs( (gint) event->motion.x - event_context->xp ) < event_context->tolerance )
 348                  && ( abs( (gint) event->motion.y - event_context->yp ) < event_context->tolerance ) ) {
 349                 break; // do not drag if we're within tolerance from origin
 350             }
 351             // Once the user has moved farther than tolerance from the original location
 352             // (indicating they intend to draw, not click), then always process the
 353             // motion notify coordinates as given (no snapping back to origin)
 354             event_context->within_tolerance = false;
 355
 356             NR::Point const motion_w(event->motion.x,
 357                                      event->motion.y);
 358             NR::Point motion_dt(desktop->w2d(motion_w));
 359
 360             SnapManager const &m = desktop->namedview->snap_manager;
 361             motion_dt = m.freeSnap(Inkscape::Snapper::SNAPPOINT_BBOX | Inkscape::Snapper::SNAPPOINT_NODE, motion_dt, bc->item).getPoint();
 362
 363             bc->ctrl_dragged  = event->motion.state & GDK_CONTROL_MASK;
 364
 365             if (event->motion.state & GDK_SHIFT_MASK && !bc->extruded) {
 366                 /* once shift is pressed, set bc->extruded (no need to create further faces;
 367                    all of them are already created in sp_3dbox_init) */
 368                 bc->extruded = true;
 369             }
 370
 371             if (!bc->extruded) {
 372                 bc->drag_ptB = motion_dt;
 373                 bc->drag_ptC = motion_dt;
 374             } else {
 375                 // Without Ctrl, motion of the extruded corner is constrained to the
 376                 // perspective line from drag_ptB to vanishing point Y.
 377                 if (!bc->ctrl_dragged) {
 378                         bc->drag_ptC = Box3D::perspective_line_snap (bc->drag_ptB, Box3D::Z, motion_dt, Box3D::Perspective3D::current_perspective);
 379                 } else {
 380                     bc->drag_ptC = motion_dt;
 381                 }
 382                 bc->drag_ptC = m.freeSnap(Inkscape::Snapper::SNAPPOINT_BBOX | Inkscape::Snapper::SNAPPOINT_NODE, bc->drag_ptC, bc->item).getPoint();
 383                 if (bc->ctrl_dragged) {
 384                         Box3D::PerspectiveLine pl1 (NR::Point (event_context->xp, event_context->yp), Box3D::Y, Box3D::Perspective3D::current_perspective);
 385                         Box3D::PerspectiveLine pl2 (bc->drag_ptB, Box3D::X, Box3D::Perspective3D::current_perspective);
 386                         NR::Point corner1 = pl1.meet(pl2);
 387
 388                         Box3D::PerspectiveLine pl3 (corner1, Box3D::X, Box3D::Perspective3D::current_perspective);
 389                         Box3D::PerspectiveLine pl4 (bc->drag_ptC, Box3D::Z, Box3D::Perspective3D::current_perspective);
 390                         bc->drag_ptB = pl3.meet(pl4);
 391                 }
 392             }
 393
 394
 395             sp_3dbox_drag(*bc, event->motion.state);
 396
 397             ret = TRUE;
 398         }
 399         break;
 400     case GDK_BUTTON_RELEASE:
 401         event_context->xp = event_context->yp = 0;
 402         if ( event->button.button == 1  && !event_context->space_panning) {
 403             dragging = false;
 404
 405             if (!event_context->within_tolerance) {
 406                 // we've been dragging, finish the box
 407                 sp_3dbox_finish(bc);
 408             } else if (event_context->item_to_select) {
 409                 // no dragging, select clicked item if any
 410                 if (event->button.state & GDK_SHIFT_MASK) {
 411                     selection->toggle(event_context->item_to_select);
 412                 } else {
 413                     selection->set(event_context->item_to_select);
 414                 }
 415             } else {
 416                 // click in an empty space
 417                 selection->clear();
 418             }
 419
 420             event_context->item_to_select = NULL;
 421             ret = TRUE;
 422             sp_canvas_item_ungrab(SP_CANVAS_ITEM(desktop->acetate),
 423                                   event->button.time);
 424         }
 425         break;
 426     case GDK_KEY_PRESS:
 427         switch (get_group0_keyval (&event->key)) {
 428         case GDK_Alt_L:
 429         case GDK_Alt_R:
 430         case GDK_Control_L:
 431         case GDK_Control_R:
 432         case GDK_Shift_L:
 433         case GDK_Shift_R:
 434         case GDK_Meta_L:  // Meta is when you press Shift+Alt (at least on my machine)
 435         case GDK_Meta_R:
 436             /***
 437             if (!dragging){
 438                 sp_event_show_modifier_tip (event_context->defaultMessageContext(), event,
 439                                             _("<b>Ctrl</b>: make square or integer-ratio rect, lock a rounded corner circular"),
 440                                             _("<b>Shift</b>: draw around the starting point"),
 441                                             NULL);
 442             }
 443             ***/
 444             break;
 445         case GDK_Up:
 446         case GDK_Down:
 447         case GDK_KP_Up:
 448         case GDK_KP_Down:
 449             // prevent the zoom field from activation
 450             if (!MOD__CTRL_ONLY)
 451                 ret = TRUE;
 452             break;
 453
 454         case GDK_I:
 455             Box3D::Perspective3D::print_debugging_info();
 456             ret = true;
 457             break;
 458
 459         case GDK_L:
 460         case GDK_l:
 461             bc->_vpdrag->show_lines = !bc->_vpdrag->show_lines;
 462             bc->_vpdrag->updateLines();
 463             ret = true;
 464             break;
 465
 466         case GDK_A:
 467         case GDK_a:
 468             if (MOD__CTRL) break; // Don't catch Ctrl+A ("select all")
 469             if (bc->_vpdrag->show_lines) {
 470                 bc->_vpdrag->front_or_rear_lines = bc->_vpdrag->front_or_rear_lines ^ 0x2; // toggle rear PLs
 471             }
 472             bc->_vpdrag->updateLines();
 473             ret = true;
 474             break;
 475
 476         case GDK_x:
 477         case GDK_X:
 478         {
 479             if (MOD__CTRL) break; // Don't catch Ctrl+X ('cut') and Ctrl+Shift+X ('open XML editor')
 480             // FIXME: Shouldn't we access _vpdrag->selection instead?
 481             Inkscape::Selection *selection = sp_desktop_selection (bc->_vpdrag->desktop);
 482             for (GSList const *i = selection->itemList(); i != NULL; i = i->next) {
 483                 if (!SP_IS_3DBOX (i->data)) continue;
 484                 sp_3dbox_switch_front_face (SP_3DBOX (i->data), Box3D::X);
 485              }
 486             bc->_vpdrag->updateLines();
 487             ret = true;
 488             break;
 489         }
 490
 491         case GDK_y:
 492         case GDK_Y:
 493         {
 494             if (MOD__CTRL) break; // Don't catch Ctrl+Y ("redo")
 495             // FIXME: Shouldn't we access _vpdrag->selection instead?
 496             Inkscape::Selection *selection = sp_desktop_selection (bc->_vpdrag->desktop);
 497             for (GSList const *i = selection->itemList(); i != NULL; i = i->next) {
 498                 if (!SP_IS_3DBOX (i->data)) continue;
 499                 sp_3dbox_switch_front_face (SP_3DBOX (i->data), Box3D::Y);
 500             }
 501             bc->_vpdrag->updateLines();
 502             ret = true;
 503             break;
 504         }
 505
 506         case GDK_z:
 507         case GDK_Z:
 508         {
 509             if (MOD__CTRL) break; // Don't catch Ctrl+Z ("undo")
 510             // FIXME: Shouldn't we access _vpdrag->selection instead?
 511             Inkscape::Selection *selection = sp_desktop_selection (bc->_vpdrag->desktop);
 512             for (GSList const *i = selection->itemList(); i != NULL; i = i->next) {
 513                 if (!SP_IS_3DBOX (i->data)) continue;
 514                 sp_3dbox_switch_front_face (SP_3DBOX (i->data), Box3D::Z);
 515             }
 516             bc->_vpdrag->updateLines();
 517             ret = true;
 518             break;
 519         }
 520
 521         case GDK_Escape:
 522             sp_desktop_selection(desktop)->clear();
 523             //TODO: make dragging escapable by Esc
 524             break;
 525
 526         case GDK_space:
 527             if (dragging) {
 528                 sp_canvas_item_ungrab(SP_CANVAS_ITEM(desktop->acetate),
 529                                       event->button.time);
 530                 dragging = false;
 531                 if (!event_context->within_tolerance) {
 532                     // we've been dragging, finish the box
 533                     sp_3dbox_finish(bc);
 534                 }
 535                 // do not return true, so that space would work switching to selector
 536             }
 537             break;
 538
 539         default:
 540             break;
 541         }
 542         break;
 543     case GDK_KEY_RELEASE:
 544         switch (get_group0_keyval (&event->key)) {
 545         case GDK_Alt_L:
 546         case GDK_Alt_R:
 547         case GDK_Control_L:
 548         case GDK_Control_R:
 549         case GDK_Shift_L:
 550         case GDK_Shift_R:
 551         case GDK_Meta_L:  // Meta is when you press Shift+Alt
 552         case GDK_Meta_R:
 553             event_context->defaultMessageContext()->clear();
 554             break;
 555         default:
 556             break;
 557         }
 558         break;
 559     default:
 560         break;
 561     }
 562
 563     if (!ret) {
 564         if (((SPEventContextClass *) parent_class)->root_handler) {
 565             ret = ((SPEventContextClass *) parent_class)->root_handler(event_context, event);
 566         }
 567     }
 568
 569     return ret;
 570 }
 571
 572 static void sp_3dbox_drag(SP3DBoxContext &bc, guint state)
 573 {
 574     SPDesktop *desktop = SP_EVENT_CONTEXT(&bc)->desktop;
 575
 576     if (!bc.item) {
 577
 578         if (Inkscape::have_viable_layer(desktop, bc._message_context) == false) {
 579             return;
 580         }
 581
 582         /* Create object */
 583         Inkscape::XML::Document *xml_doc = sp_document_repr_doc(SP_EVENT_CONTEXT_DOCUMENT(&bc));
 584         Inkscape::XML::Node *repr = xml_doc->createElement("svg:g");
 585         repr->setAttribute("sodipodi:type", "inkscape:3dbox");
 586
 587         /* Set style */
 588         sp_desktop_apply_style_tool (desktop, repr, "tools.shapes.3dbox", false);
 589
 590         bc.item = (SPItem *) desktop->currentLayer()->appendChildRepr(repr);
 591         Inkscape::GC::release(repr);
 592         bc.item->transform = SP_ITEM(desktop->currentRoot())->getRelativeTransform(desktop->currentLayer());
 593
 594         /* Hook paths to the faces of the box */
 595         for (int i = 0; i < 6; ++i) {
 596             SP_3DBOX(bc.item)->faces[i]->hook_path_to_3dbox();
 597         }
 598
 599         bc.item->updateRepr();
 600         sp_3dbox_set_z_orders (SP_3DBOX (bc.item));
 601
 602         // TODO: It would be nice to show the VPs during dragging, but since there is no selection
 603         //       at this point (only after finishing the box), we must do this "manually"
 604         bc._vpdrag->updateDraggers();
 605
 606         sp_canvas_force_full_redraw_after_interruptions(desktop->canvas, 5);
 607     }
 608
 609     // FIXME: remove these extra points
 610     NR::Point pt = bc.drag_ptB;
 611     NR::Point shift_pt = bc.drag_ptC;
 612
 613     NR::Rect r;
 614     if (!(state & GDK_SHIFT_MASK)) {
 615         r = Inkscape::snap_rectangular_box(desktop, bc.item, pt, bc.center, state);
 616     } else {
 617         r = Inkscape::snap_rectangular_box(desktop, bc.item, shift_pt, bc.center, state);
 618     }
 619
 620     SPEventContext *ec = SP_EVENT_CONTEXT(&bc);
 621     NR::Point origin_w(ec->xp, ec->yp);
 622     NR::Point origin(desktop->w2d(origin_w));
 623     sp_3dbox_position_set(bc);
 624     sp_3dbox_set_z_orders (SP_3DBOX (bc.item));
 625
 626     // status text
 627     //GString *Ax = SP_PX_TO_METRIC_STRING(origin[NR::X], desktop->namedview->getDefaultMetric());
 628     //GString *Ay = SP_PX_TO_METRIC_STRING(origin[NR::Y], desktop->namedview->getDefaultMetric());
 629     bc._message_context->setF(Inkscape::NORMAL_MESSAGE, _("<b>3D Box</b>; with <b>Shift</b> to extrude along the Z axis"));
 630     //g_string_free(Ax, FALSE);
 631     //g_string_free(Ay, FALSE);
 632 }
 633
 634 static void sp_3dbox_finish(SP3DBoxContext *bc)
 635 {
 636     bc->_message_context->clear();
 637
 638     if ( bc->item != NULL ) {
 639         SPDesktop * desktop;
 640
 641         desktop = SP_EVENT_CONTEXT_DESKTOP(bc);
 642
 643         SP_OBJECT(bc->item)->updateRepr();
 644         sp_3dbox_set_ratios(SP_3DBOX(bc->item));
 645
 646         sp_canvas_end_forced_full_redraws(desktop->canvas);
 647
 648         sp_desktop_selection(desktop)->set(bc->item);
 649         sp_document_done(sp_desktop_document(desktop), SP_VERB_CONTEXT_3DBOX,
 650                          _("Create 3D box"));
 651
 652         bc->item = NULL;
 653     }
 654
 655     bc->ctrl_dragged = false;
 656     bc->extruded = false;
 657 }
 658
 659 /*
 660   Local Variables:
 661   mode:c++
 662   c-file-style:"stroustrup"
 663   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
 664   indent-tabs-mode:nil
 665   fill-column:99
 666   End:
 667 */
 668 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :