コード例 #1
0
ファイル: box3d-context.cpp プロジェクト: loveq369/DoonSketch
static void sp_box3d_finish(Box3DContext *bc)
{
    bc->_message_context->clear();
    bc->ctrl_dragged = false;
    bc->extruded = false;

    if ( bc->item != NULL ) {
        SPDesktop * desktop = SP_EVENT_CONTEXT_DESKTOP(bc);
        SPDocument *doc = sp_desktop_document(desktop);
        if (!doc || !doc->getCurrentPersp3D())
            return;

        SPBox3D *box = SP_BOX3D(bc->item);

        box->orig_corner0 = bc->drag_origin_proj;
        box->orig_corner7 = bc->drag_ptC_proj;

        box->updateRepr();

        box3d_relabel_corners(box);

        desktop->canvas->end_forced_full_redraws();

        sp_desktop_selection(desktop)->set(bc->item);
        sp_document_done(sp_desktop_document(desktop), SP_VERB_CONTEXT_3DBOX,
                         _("Create 3D box"));

        bc->item = NULL;
    }
}
コード例 #2
0
ファイル: box3d-context.cpp プロジェクト: loveq369/DoonSketch
static gint sp_box3d_context_root_handler(SPEventContext *event_context, GdkEvent *event)
{
    static bool dragging;

    SPDesktop *desktop = event_context->desktop;
    SPDocument *document = sp_desktop_document (desktop);
    Inkscape::Selection *selection = sp_desktop_selection (desktop);
    Inkscape::Preferences *prefs = Inkscape::Preferences::get();
    int const snaps = prefs->getInt("/options/rotationsnapsperpi/value", 12);

    Box3DContext *bc = SP_BOX3D_CONTEXT(event_context);
    Persp3D *cur_persp = document->getCurrentPersp3D();

    event_context->tolerance = prefs->getIntLimited("/options/dragtolerance/value", 0, 0, 100);

    gint ret = FALSE;
    switch (event->type) {
    case GDK_BUTTON_PRESS:
        if ( event->button.button == 1  && !event_context->space_panning) {
            Geom::Point const button_w(event->button.x,
                                       event->button.y);

            // save drag origin
            event_context->xp = (gint) button_w[Geom::X];
            event_context->yp = (gint) button_w[Geom::Y];
            event_context->within_tolerance = true;

            // remember clicked item, *not* disregarding groups (since a 3D box is a group), honoring Alt
            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);

            dragging = true;

            /*  */
            Geom::Point button_dt(desktop->w2d(button_w));
            bc->drag_origin = from_2geom(button_dt);
            bc->drag_ptB = from_2geom(button_dt);
            bc->drag_ptC = from_2geom(button_dt);

            // This can happen after saving when the last remaining perspective was purged and must be recreated.
            if (!cur_persp) {
                sp_box3d_context_ensure_persp_in_defs(document);
                cur_persp = document->getCurrentPersp3D();
            }

            /* Projective preimages of clicked point under current perspective */
            bc->drag_origin_proj = cur_persp->perspective_impl->tmat.preimage (from_2geom(button_dt), 0, Proj::Z);
            bc->drag_ptB_proj = bc->drag_origin_proj;
            bc->drag_ptC_proj = bc->drag_origin_proj;
            bc->drag_ptC_proj.normalize();
            bc->drag_ptC_proj[Proj::Z] = 0.25;

            /* Snap center */
            SnapManager &m = desktop->namedview->snap_manager;
            m.setup(desktop, true, bc->item);
            m.freeSnapReturnByRef(button_dt, Inkscape::SNAPSOURCE_NODE_HANDLE);
            bc->center = from_2geom(button_dt);

            sp_canvas_item_grab(SP_CANVAS_ITEM(desktop->acetate),
                                ( GDK_KEY_PRESS_MASK |
                                  GDK_BUTTON_RELEASE_MASK       |
                                  GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK       |
                                  GDK_BUTTON_PRESS_MASK ),
                                NULL, event->button.time);
            ret = TRUE;
        }
        break;
    case GDK_MOTION_NOTIFY:
        if ( dragging
             && ( event->motion.state & GDK_BUTTON1_MASK )  && !event_context->space_panning)
        {
            if ( event_context->within_tolerance
                 && ( abs( (gint) event->motion.x - event_context->xp ) < event_context->tolerance )
                 && ( abs( (gint) event->motion.y - event_context->yp ) < event_context->tolerance ) ) {
                break; // do not drag if we're within tolerance from origin
            }
            // Once the user has moved farther than tolerance from the original location
            // (indicating they intend to draw, not click), then always process the
            // motion notify coordinates as given (no snapping back to origin)
            event_context->within_tolerance = false;

            Geom::Point const motion_w(event->motion.x,
                                       event->motion.y);
            Geom::Point motion_dt(desktop->w2d(motion_w));

            SnapManager &m = desktop->namedview->snap_manager;
            m.setup(desktop, true, bc->item);
            m.freeSnapReturnByRef(motion_dt, Inkscape::SNAPSOURCE_NODE_HANDLE);

            bc->ctrl_dragged  = event->motion.state & GDK_CONTROL_MASK;

            if (event->motion.state & GDK_SHIFT_MASK && !bc->extruded && bc->item) {
                // once shift is pressed, set bc->extruded
                bc->extruded = true;
            }

            if (!bc->extruded) {
                bc->drag_ptB = from_2geom(motion_dt);
                bc->drag_ptC = from_2geom(motion_dt);

                bc->drag_ptB_proj = cur_persp->perspective_impl->tmat.preimage (from_2geom(motion_dt), 0, Proj::Z);
                bc->drag_ptC_proj = bc->drag_ptB_proj;
                bc->drag_ptC_proj.normalize();
                bc->drag_ptC_proj[Proj::Z] = 0.25;
            } else {
                // Without Ctrl, motion of the extruded corner is constrained to the
                // perspective line from drag_ptB to vanishing point Y.
                if (!bc->ctrl_dragged) {
                    /* snapping */
                    Box3D::PerspectiveLine pline (bc->drag_ptB, Proj::Z, document->getCurrentPersp3D());
                    bc->drag_ptC = pline.closest_to (from_2geom(motion_dt));

                    bc->drag_ptB_proj.normalize();
                    bc->drag_ptC_proj = cur_persp->perspective_impl->tmat.preimage (bc->drag_ptC, bc->drag_ptB_proj[Proj::X], Proj::X);
                } else {
                    bc->drag_ptC = from_2geom(motion_dt);

                    bc->drag_ptB_proj.normalize();
                    bc->drag_ptC_proj = cur_persp->perspective_impl->tmat.preimage (from_2geom(motion_dt), bc->drag_ptB_proj[Proj::X], Proj::X);
                }
                m.freeSnapReturnByRef(bc->drag_ptC, Inkscape::SNAPSOURCE_NODE_HANDLE);
            }

            sp_box3d_drag(*bc, event->motion.state);

            ret = TRUE;
        } else if (!sp_event_context_knot_mouseover(bc)) {
            SnapManager &m = desktop->namedview->snap_manager;
            m.setup(desktop);

            Geom::Point const motion_w(event->motion.x, event->motion.y);
            Geom::Point motion_dt(desktop->w2d(motion_w));
            m.preSnap(Inkscape::SnapCandidatePoint(motion_dt, Inkscape::SNAPSOURCE_NODE_HANDLE));
        }
        break;
    case GDK_BUTTON_RELEASE:
        event_context->xp = event_context->yp = 0;
        if ( event->button.button == 1  && !event_context->space_panning) {
            dragging = false;
            sp_event_context_discard_delayed_snap_event(event_context);

            if (!event_context->within_tolerance) {
                // we've been dragging, finish the box
                sp_box3d_finish(bc);
            } else if (event_context->item_to_select) {
                // no dragging, select clicked item if any
                if (event->button.state & GDK_SHIFT_MASK) {
                    selection->toggle(event_context->item_to_select);
                } else {
                    selection->set(event_context->item_to_select);
                }
            } else {
                // click in an empty space
                selection->clear();
            }

            event_context->item_to_select = NULL;
            ret = TRUE;
            sp_canvas_item_ungrab(SP_CANVAS_ITEM(desktop->acetate),
                                  event->button.time);
        }
        break;
    case GDK_KEY_PRESS:
        switch (get_group0_keyval (&event->key)) {
        case GDK_Up:
        case GDK_Down:
        case GDK_KP_Up:
        case GDK_KP_Down:
            // prevent the zoom field from activation
            if (!MOD__CTRL_ONLY)
                ret = TRUE;
            break;

        case GDK_bracketright:
            persp3d_rotate_VP (document->getCurrentPersp3D(), Proj::X, -180/snaps, MOD__ALT);
            sp_document_done(document, SP_VERB_CONTEXT_3DBOX,
                             _("Change perspective (angle of PLs)"));
            ret = true;
            break;

        case GDK_bracketleft:
            persp3d_rotate_VP (document->getCurrentPersp3D(), Proj::X, 180/snaps, MOD__ALT);
            sp_document_done(document, SP_VERB_CONTEXT_3DBOX,
                             _("Change perspective (angle of PLs)"));
            ret = true;
            break;

        case GDK_parenright:
            persp3d_rotate_VP (document->getCurrentPersp3D(), Proj::Y, -180/snaps, MOD__ALT);
            sp_document_done(document, SP_VERB_CONTEXT_3DBOX,
                             _("Change perspective (angle of PLs)"));
            ret = true;
            break;

        case GDK_parenleft:
            persp3d_rotate_VP (document->getCurrentPersp3D(), Proj::Y, 180/snaps, MOD__ALT);
            sp_document_done(document, SP_VERB_CONTEXT_3DBOX,
                             _("Change perspective (angle of PLs)"));
            ret = true;
            break;

        case GDK_braceright:
            persp3d_rotate_VP (document->getCurrentPersp3D(), Proj::Z, -180/snaps, MOD__ALT);
            sp_document_done(document, SP_VERB_CONTEXT_3DBOX,
                             _("Change perspective (angle of PLs)"));
            ret = true;
            break;

        case GDK_braceleft:
            persp3d_rotate_VP (document->getCurrentPersp3D(), Proj::Z, 180/snaps, MOD__ALT);
            sp_document_done(document, SP_VERB_CONTEXT_3DBOX,
                             _("Change perspective (angle of PLs)"));
            ret = true;
            break;

        /* TODO: what is this???
        case GDK_O:
            if (MOD__CTRL && MOD__SHIFT) {
                Box3D::create_canvas_point(persp3d_get_VP(document()->getCurrentPersp3D(), Proj::W).affine(),
                                           6, 0xff00ff00);
            }
            ret = true;
            break;
        */

        case GDK_g:
        case GDK_G:
            if (MOD__SHIFT_ONLY) {
                sp_selection_to_guides(desktop);
                ret = true;
            }
            break;

        case GDK_p:
        case GDK_P:
            if (MOD__SHIFT_ONLY) {
                if (document->getCurrentPersp3D()) {
                    persp3d_print_debugging_info (document->getCurrentPersp3D());
                }
                ret = true;
            }
            break;

        case GDK_x:
        case GDK_X:
            if (MOD__ALT_ONLY) {
                desktop->setToolboxFocusTo ("altx-box3d");
                ret = TRUE;
            }
            if (MOD__SHIFT_ONLY) {
                persp3d_toggle_VPs(selection->perspList(), Proj::X);
                bc->_vpdrag->updateLines(); // FIXME: Shouldn't this be done automatically?
                ret = true;
            }
            break;

        case GDK_y:
        case GDK_Y:
            if (MOD__SHIFT_ONLY) {
                persp3d_toggle_VPs(selection->perspList(), Proj::Y);
                bc->_vpdrag->updateLines(); // FIXME: Shouldn't this be done automatically?
                ret = true;
            }
            break;

        case GDK_z:
        case GDK_Z:
            if (MOD__SHIFT_ONLY) {
                persp3d_toggle_VPs(selection->perspList(), Proj::Z);
                bc->_vpdrag->updateLines(); // FIXME: Shouldn't this be done automatically?
                ret = true;
            }
            break;

        case GDK_Escape:
            sp_desktop_selection(desktop)->clear();
            //TODO: make dragging escapable by Esc
            break;

        case GDK_space:
            if (dragging) {
                sp_canvas_item_ungrab(SP_CANVAS_ITEM(desktop->acetate),
                                      event->button.time);
                dragging = false;
                sp_event_context_discard_delayed_snap_event(event_context);
                if (!event_context->within_tolerance) {
                    // we've been dragging, finish the box
                    sp_box3d_finish(bc);
                }
                // do not return true, so that space would work switching to selector
            }
            break;

        default:
            break;
        }
        break;
    default:
        break;
    }

    if (!ret) {
        if (((SPEventContextClass *) parent_class)->root_handler) {
            ret = ((SPEventContextClass *) parent_class)->root_handler(event_context, event);
        }
    }

    return ret;
}