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     }
 195 }
 196
 197 static void sp_3dbox_context_setup(SPEventContext *ec)
 198 {
 199     SP3DBoxContext *bc = SP_3DBOX_CONTEXT(ec);
 200
 201     if (((SPEventContextClass *) parent_class)->setup) {
 202         ((SPEventContextClass *) parent_class)->setup(ec);
 203     }
 204
 205     SPItem *item = sp_desktop_selection(ec->desktop)->singleItem();
 206     if (item) {
 207         ec->shape_knot_holder = sp_item_knot_holder(item, ec->desktop);
 208         Inkscape::XML::Node *shape_repr = SP_OBJECT_REPR(item);
 209         if (shape_repr) {
 210             ec->shape_repr = shape_repr;
 211             Inkscape::GC::anchor(shape_repr);
 212             sp_repr_add_listener(shape_repr, &ec_shape_repr_events, ec);
 213         }
 214     }
 215
 216     bc->sel_changed_connection.disconnect();
 217     bc->sel_changed_connection = sp_desktop_selection(ec->desktop)->connectChanged(
 218         sigc::bind(sigc::ptr_fun(&sp_3dbox_context_selection_changed), (gpointer)bc)
 219     );
 220
 221     bc->_vpdrag = new Box3D::VPDrag(ec->desktop);
 222
 223     if (prefs_get_int_attribute("tools.shapes", "selcue", 0) != 0) {
 224         ec->enableSelectionCue();
 225     }
 226
 227     if (prefs_get_int_attribute("tools.shapes", "gradientdrag", 0) != 0) {
 228         ec->enableGrDrag();
 229     }
 230
 231     bc->_message_context = new Inkscape::MessageContext((ec->desktop)->messageStack());
 232 }
 233
 234 static void sp_3dbox_context_set(SPEventContext *ec, gchar const *key, gchar const *val)
 235 {
 236     //SP3DBoxContext *bc = SP_3DBOX_CONTEXT(ec);
 237
 238     /* fixme: Proper error handling for non-numeric data.  Use a locale-independent function like
 239      * g_ascii_strtod (or a thin wrapper that does the right thing for invalid values inf/nan). */
 240     /**
 241     if ( strcmp(key, "rx") == 0 ) {
 242         bc->rx = ( val
 243                          ? g_ascii_strtod (val, NULL)
 244                          : 0.0 );
 245     } else if ( strcmp(key, "ry") == 0 ) {
 246         bc->ry = ( val
 247                          ? g_ascii_strtod (val, NULL)
 248                          : 0.0 );
 249     }
 250     **/
 251 }
 252
 253 static gint sp_3dbox_context_item_handler(SPEventContext *event_context, SPItem *item, GdkEvent *event)
 254 {
 255     SPDesktop *desktop = event_context->desktop;
 256
 257     gint ret = FALSE;
 258
 259     switch (event->type) {
 260     case GDK_BUTTON_PRESS:
 261         if ( event->button.button == 1 && !event_context->space_panning) {
 262             Inkscape::setup_for_drag_start(desktop, event_context, event);
 263             ret = TRUE;
 264         }
 265         break;
 266         // motion and release are always on root (why?)
 267     default:
 268         break;
 269     }
 270
 271     if (((SPEventContextClass *) parent_class)->item_handler) {
 272         ret = ((SPEventContextClass *) parent_class)->item_handler(event_context, item, event);
 273     }
 274
 275     return ret;
 276 }
 277
 278 static gint sp_3dbox_context_root_handler(SPEventContext *event_context, GdkEvent *event)
 279 {
 280     static bool dragging;
 281
 282     SPDesktop *desktop = event_context->desktop;
 283     Inkscape::Selection *selection = sp_desktop_selection (desktop);
 284
 285     SP3DBoxContext *bc = SP_3DBOX_CONTEXT(event_context);
 286
 287     event_context->tolerance = prefs_get_int_attribute_limited("options.dragtolerance", "value", 0, 0, 100);
 288
 289     gint ret = FALSE;
 290     switch (event->type) {
 291     case GDK_BUTTON_PRESS:
 292         if ( event->button.button == 1  && !event_context->space_panning) {
 293             NR::Point const button_w(event->button.x,
 294                                      event->button.y);
 295
 296             // save drag origin
 297             event_context->xp = (gint) button_w[NR::X];
 298             event_context->yp = (gint) button_w[NR::Y];
 299             event_context->within_tolerance = true;
 300
 301             // remember clicked item, disregarding groups, honoring Alt
 302             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);
 303
 304             dragging = true;
 305
 306             /* Position center */
 307             NR::Point const button_dt(desktop->w2d(button_w));
 308             bc->drag_origin = button_dt;
 309             bc->drag_ptB = button_dt;
 310             bc->drag_ptC = button_dt;
 311
 312             /* Snap center */
 313             SnapManager const &m = desktop->namedview->snap_manager;
 314             bc->center = m.freeSnap(Inkscape::Snapper::SNAPPOINT_NODE | Inkscape::Snapper::SNAPPOINT_BBOX,
 315                                     button_dt, bc->item).getPoint();
 316
 317             sp_canvas_item_grab(SP_CANVAS_ITEM(desktop->acetate),
 318                                 ( GDK_KEY_PRESS_MASK |
 319                                   GDK_BUTTON_RELEASE_MASK       |
 320                                   GDK_POINTER_MOTION_MASK       |
 321                                   GDK_BUTTON_PRESS_MASK ),
 322                                 NULL, event->button.time);
 323             ret = TRUE;
 324         }
 325         break;
 326     case GDK_MOTION_NOTIFY:
 327         if ( dragging
 328              && ( event->motion.state & GDK_BUTTON1_MASK )  && !event_context->space_panning)
 329         {
 330             if ( event_context->within_tolerance
 331                  && ( abs( (gint) event->motion.x - event_context->xp ) < event_context->tolerance )
 332                  && ( abs( (gint) event->motion.y - event_context->yp ) < event_context->tolerance ) ) {
 333                 break; // do not drag if we're within tolerance from origin
 334             }
 335             // Once the user has moved farther than tolerance from the original location
 336             // (indicating they intend to draw, not click), then always process the
 337             // motion notify coordinates as given (no snapping back to origin)
 338             event_context->within_tolerance = false;
 339
 340             NR::Point const motion_w(event->motion.x,
 341                                      event->motion.y);
 342             NR::Point motion_dt(desktop->w2d(motion_w));
 343
 344             SnapManager const &m = desktop->namedview->snap_manager;
 345             motion_dt = m.freeSnap(Inkscape::Snapper::SNAPPOINT_BBOX | Inkscape::Snapper::SNAPPOINT_NODE, motion_dt, bc->item).getPoint();
 346
 347             bc->ctrl_dragged  = event->motion.state & GDK_CONTROL_MASK;
 348
 349             if (event->motion.state & GDK_SHIFT_MASK && !bc->extruded) {
 350                 /* once shift is pressed, set bc->extruded (no need to create further faces;
 351                    all of them are already created in sp_3dbox_init) */
 352                 bc->extruded = true;
 353             }
 354
 355             if (!bc->extruded) {
 356                 bc->drag_ptB = motion_dt;
 357                 bc->drag_ptC = motion_dt;
 358             } else {
 359                 // Without Ctrl, motion of the extruded corner is constrained to the
 360                 // perspective line from drag_ptB to vanishing point Y.
 361                 if (!bc->ctrl_dragged) {
 362                         bc->drag_ptC = Box3D::perspective_line_snap (bc->drag_ptB, Box3D::Z, motion_dt, Box3D::Perspective3D::current_perspective);
 363                 } else {
 364                     bc->drag_ptC = motion_dt;
 365                 }
 366                 bc->drag_ptC = m.freeSnap(Inkscape::Snapper::SNAPPOINT_BBOX | Inkscape::Snapper::SNAPPOINT_NODE, bc->drag_ptC, bc->item).getPoint();
 367                 if (bc->ctrl_dragged) {
 368                         Box3D::PerspectiveLine pl1 (NR::Point (event_context->xp, event_context->yp), Box3D::Y, Box3D::Perspective3D::current_perspective);
 369                         Box3D::PerspectiveLine pl2 (bc->drag_ptB, Box3D::X, Box3D::Perspective3D::current_perspective);
 370                         NR::Point corner1 = pl1.meet(pl2);
 371
 372                         Box3D::PerspectiveLine pl3 (corner1, Box3D::X, Box3D::Perspective3D::current_perspective);
 373                         Box3D::PerspectiveLine pl4 (bc->drag_ptC, Box3D::Z, Box3D::Perspective3D::current_perspective);
 374                         bc->drag_ptB = pl3.meet(pl4);
 375                 }
 376             }
 377
 378
 379             sp_3dbox_drag(*bc, event->motion.state);
 380
 381             ret = TRUE;
 382         }
 383         break;
 384     case GDK_BUTTON_RELEASE:
 385         event_context->xp = event_context->yp = 0;
 386         if ( event->button.button == 1  && !event_context->space_panning) {
 387             dragging = false;
 388
 389             if (!event_context->within_tolerance) {
 390                 // we've been dragging, finish the box
 391                 sp_3dbox_finish(bc);
 392             } else if (event_context->item_to_select) {
 393                 // no dragging, select clicked item if any
 394                 if (event->button.state & GDK_SHIFT_MASK) {
 395                     selection->toggle(event_context->item_to_select);
 396                 } else {
 397                     selection->set(event_context->item_to_select);
 398                 }
 399             } else {
 400                 // click in an empty space
 401                 selection->clear();
 402             }
 403
 404             event_context->item_to_select = NULL;
 405             ret = TRUE;
 406             sp_canvas_item_ungrab(SP_CANVAS_ITEM(desktop->acetate),
 407                                   event->button.time);
 408         }
 409         break;
 410     case GDK_KEY_PRESS:
 411         switch (get_group0_keyval (&event->key)) {
 412         case GDK_Alt_L:
 413         case GDK_Alt_R:
 414         case GDK_Control_L:
 415         case GDK_Control_R:
 416         case GDK_Shift_L:
 417         case GDK_Shift_R:
 418         case GDK_Meta_L:  // Meta is when you press Shift+Alt (at least on my machine)
 419         case GDK_Meta_R:
 420             /***
 421             if (!dragging){
 422                 sp_event_show_modifier_tip (event_context->defaultMessageContext(), event,
 423                                             _("<b>Ctrl</b>: make square or integer-ratio rect, lock a rounded corner circular"),
 424                                             _("<b>Shift</b>: draw around the starting point"),
 425                                             NULL);
 426             }
 427             ***/
 428             break;
 429         case GDK_Up:
 430         case GDK_Down:
 431         case GDK_KP_Up:
 432         case GDK_KP_Down:
 433             // prevent the zoom field from activation
 434             if (!MOD__CTRL_ONLY)
 435                 ret = TRUE;
 436             break;
 437
 438         case GDK_I:
 439             Box3D::Perspective3D::print_debugging_info();
 440             ret = true;
 441             break;
 442
 443         case GDK_L:
 444         case GDK_l:
 445             bc->_vpdrag->show_lines = !bc->_vpdrag->show_lines;
 446             bc->_vpdrag->updateLines();
 447             ret = true;
 448             break;
 449
 450         case GDK_A:
 451         case GDK_a:
 452             if (MOD__CTRL) break; // Don't catch Ctrl+A ("select all")
 453             if (bc->_vpdrag->show_lines) {
 454                 bc->_vpdrag->front_or_rear_lines = bc->_vpdrag->front_or_rear_lines ^ 0x2; // toggle rear PLs
 455             }
 456             bc->_vpdrag->updateLines();
 457             ret = true;
 458             break;
 459
 460         case GDK_x:
 461         case GDK_X:
 462         {
 463             if (MOD__CTRL) break; // Don't catch Ctrl+X ('cut') and Ctrl+Shift+X ('open XML editor')
 464             // FIXME: Shouldn't we access _vpdrag->selection instead?
 465             Inkscape::Selection *selection = sp_desktop_selection (bc->_vpdrag->desktop);
 466             for (GSList const *i = selection->itemList(); i != NULL; i = i->next) {
 467                 if (!SP_IS_3DBOX (i->data)) continue;
 468                 sp_3dbox_switch_front_face (SP_3DBOX (i->data), Box3D::X);
 469              }
 470             bc->_vpdrag->updateLines();
 471             ret = true;
 472             break;
 473         }
 474
 475         case GDK_y:
 476         case GDK_Y:
 477         {
 478             if (MOD__CTRL) break; // Don't catch Ctrl+Y ("redo")
 479             // FIXME: Shouldn't we access _vpdrag->selection instead?
 480             Inkscape::Selection *selection = sp_desktop_selection (bc->_vpdrag->desktop);
 481             for (GSList const *i = selection->itemList(); i != NULL; i = i->next) {
 482                 if (!SP_IS_3DBOX (i->data)) continue;
 483                 sp_3dbox_switch_front_face (SP_3DBOX (i->data), Box3D::Y);
 484             }
 485             bc->_vpdrag->updateLines();
 486             ret = true;
 487             break;
 488         }
 489
 490         case GDK_z:
 491         case GDK_Z:
 492         {
 493             if (MOD__CTRL) break; // Don't catch Ctrl+Z ("undo")
 494             // FIXME: Shouldn't we access _vpdrag->selection instead?
 495             Inkscape::Selection *selection = sp_desktop_selection (bc->_vpdrag->desktop);
 496             for (GSList const *i = selection->itemList(); i != NULL; i = i->next) {
 497                 if (!SP_IS_3DBOX (i->data)) continue;
 498                 sp_3dbox_switch_front_face (SP_3DBOX (i->data), Box3D::Z);
 499             }
 500             bc->_vpdrag->updateLines();
 501             ret = true;
 502             break;
 503         }
 504
 505         case GDK_Escape:
 506             sp_desktop_selection(desktop)->clear();
 507             //TODO: make dragging escapable by Esc
 508             break;
 509
 510         case GDK_space:
 511             if (dragging) {
 512                 sp_canvas_item_ungrab(SP_CANVAS_ITEM(desktop->acetate),
 513                                       event->button.time);
 514                 dragging = false;
 515                 if (!event_context->within_tolerance) {
 516                     // we've been dragging, finish the box
 517                     sp_3dbox_finish(bc);
 518                 }
 519                 // do not return true, so that space would work switching to selector
 520             }
 521             break;
 522
 523         default:
 524             break;
 525         }
 526         break;
 527     case GDK_KEY_RELEASE:
 528         switch (get_group0_keyval (&event->key)) {
 529         case GDK_Alt_L:
 530         case GDK_Alt_R:
 531         case GDK_Control_L:
 532         case GDK_Control_R:
 533         case GDK_Shift_L:
 534         case GDK_Shift_R:
 535         case GDK_Meta_L:  // Meta is when you press Shift+Alt
 536         case GDK_Meta_R:
 537             event_context->defaultMessageContext()->clear();
 538             break;
 539         default:
 540             break;
 541         }
 542         break;
 543     default:
 544         break;
 545     }
 546
 547     if (!ret) {
 548         if (((SPEventContextClass *) parent_class)->root_handler) {
 549             ret = ((SPEventContextClass *) parent_class)->root_handler(event_context, event);
 550         }
 551     }
 552
 553     return ret;
 554 }
 555
 556 static void sp_3dbox_drag(SP3DBoxContext &bc, guint state)
 557 {
 558     SPDesktop *desktop = SP_EVENT_CONTEXT(&bc)->desktop;
 559
 560     if (!bc.item) {
 561
 562         if (Inkscape::have_viable_layer(desktop, bc._message_context) == false) {
 563             return;
 564         }
 565
 566         /* Create object */
 567         Inkscape::XML::Document *xml_doc = sp_document_repr_doc(SP_EVENT_CONTEXT_DOCUMENT(&bc));
 568         Inkscape::XML::Node *repr = xml_doc->createElement("svg:g");
 569         repr->setAttribute("sodipodi:type", "inkscape:3dbox");
 570
 571         /* Set style */
 572         sp_desktop_apply_style_tool (desktop, repr, "tools.shapes.3dbox", false);
 573
 574         bc.item = (SPItem *) desktop->currentLayer()->appendChildRepr(repr);
 575         Inkscape::GC::release(repr);
 576         bc.item->transform = SP_ITEM(desktop->currentRoot())->getRelativeTransform(desktop->currentLayer());
 577
 578         /* Hook paths to the faces of the box */
 579         for (int i = 0; i < 6; ++i) {
 580             SP_3DBOX(bc.item)->faces[i]->hook_path_to_3dbox();
 581         }
 582
 583         bc.item->updateRepr();
 584         // TODO: It would be nice to show the VPs during dragging, but since there is no selection
 585         //       at this point (only after finishing the box), we must do this "manually"
 586         bc._vpdrag->updateDraggers();
 587
 588         sp_canvas_force_full_redraw_after_interruptions(desktop->canvas, 5);
 589     }
 590
 591     // FIXME: remove these extra points
 592     NR::Point pt = bc.drag_ptB;
 593     NR::Point shift_pt = bc.drag_ptC;
 594
 595     NR::Rect r;
 596     if (!(state & GDK_SHIFT_MASK)) {
 597         r = Inkscape::snap_rectangular_box(desktop, bc.item, pt, bc.center, state);
 598     } else {
 599         r = Inkscape::snap_rectangular_box(desktop, bc.item, shift_pt, bc.center, state);
 600     }
 601
 602     SPEventContext *ec = SP_EVENT_CONTEXT(&bc);
 603     NR::Point origin_w(ec->xp, ec->yp);
 604     NR::Point origin(desktop->w2d(origin_w));
 605     sp_3dbox_position_set(bc);
 606
 607     // status text
 608     //GString *Ax = SP_PX_TO_METRIC_STRING(origin[NR::X], desktop->namedview->getDefaultMetric());
 609     //GString *Ay = SP_PX_TO_METRIC_STRING(origin[NR::Y], desktop->namedview->getDefaultMetric());
 610     bc._message_context->setF(Inkscape::NORMAL_MESSAGE, _("<b>3D Box</b>; with <b>Shift</b> to extrude along the Z axis"));
 611     //g_string_free(Ax, FALSE);
 612     //g_string_free(Ay, FALSE);
 613 }
 614
 615 static void sp_3dbox_finish(SP3DBoxContext *bc)
 616 {
 617     bc->_message_context->clear();
 618
 619     if ( bc->item != NULL ) {
 620         SPDesktop * desktop;
 621
 622         desktop = SP_EVENT_CONTEXT_DESKTOP(bc);
 623
 624         SP_OBJECT(bc->item)->updateRepr();
 625         sp_3dbox_set_ratios(SP_3DBOX(bc->item));
 626
 627         sp_canvas_end_forced_full_redraws(desktop->canvas);
 628
 629         sp_desktop_selection(desktop)->set(bc->item);
 630         sp_document_done(sp_desktop_document(desktop), SP_VERB_CONTEXT_3DBOX,
 631                          _("Create 3D box"));
 632
 633         bc->item = NULL;
 634     }
 635
 636     bc->ctrl_dragged = false;
 637     bc->extruded = false;
 638 }
 639
 640 /*
 641   Local Variables:
 642   mode:c++
 643   c-file-style:"stroustrup"
 644   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
 645   indent-tabs-mode:nil
 646   fill-column:99
 647   End:
 648 */
 649 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :