static void sp_box3d_drag(Box3DContext &bc, guint /*state*/)
{
SPDesktop *desktop = SP_EVENT_CONTEXT(&bc)->desktop;
if (!bc.item) {
if (Inkscape::have_viable_layer(desktop, bc._message_context) == false) {
return;
}
/* Create object */
Inkscape::XML::Document *xml_doc = sp_document_repr_doc(SP_EVENT_CONTEXT_DOCUMENT(&bc));
Inkscape::XML::Node *repr = xml_doc->createElement("svg:g");
repr->setAttribute("sodipodi:type", "inkscape:box3d");
/* Set style */
sp_desktop_apply_style_tool (desktop, repr, "/tools/shapes/3dbox", false);
bc.item = (SPItem *) desktop->currentLayer()->appendChildRepr(repr);
Inkscape::GC::release(repr);
Inkscape::XML::Node *repr_side;
// TODO: Incorporate this in box3d-side.cpp!
for (int i = 0; i < 6; ++i) {
repr_side = xml_doc->createElement("svg:path");
repr_side->setAttribute("sodipodi:type", "inkscape:box3dside");
repr->addChild(repr_side, NULL);
Box3DSide *side = SP_BOX3D_SIDE(inkscape_active_document()->getObjectByRepr (repr_side));
guint desc = Box3D::int_to_face(i);
Box3D::Axis plane = (Box3D::Axis) (desc & 0x7);
plane = (Box3D::is_plane(plane) ? plane : Box3D::orth_plane_or_axis(plane));
side->dir1 = Box3D::extract_first_axis_direction(plane);
side->dir2 = Box3D::extract_second_axis_direction(plane);
side->front_or_rear = (Box3D::FrontOrRear) (desc & 0x8);
/* Set style */
box3d_side_apply_style(side);
SP_OBJECT(side)->updateRepr(); // calls box3d_side_write() and updates, e.g., the axes string description
}
box3d_set_z_orders(SP_BOX3D(bc.item));
bc.item->updateRepr();
// TODO: It would be nice to show the VPs during dragging, but since there is no selection
// at this point (only after finishing the box), we must do this "manually"
/* bc._vpdrag->updateDraggers(); */
desktop->canvas->force_full_redraw_after_interruptions(5);
}
g_assert(bc.item);
SPBox3D *box = SP_BOX3D(bc.item);
box->orig_corner0 = bc.drag_origin_proj;
box->orig_corner7 = bc.drag_ptC_proj;
box3d_check_for_swapped_coords(box);
/* we need to call this from here (instead of from box3d_position_set(), for example)
because z-order setting must not interfere with display updates during undo/redo */
box3d_set_z_orders (box);
box3d_position_set(box);
// status text
bc._message_context->setF(Inkscape::NORMAL_MESSAGE, "%s", _("<b>3D Box</b>; with <b>Shift</b> to extrude along the Z axis"));
}
static void
sp_spiral_drag(SPSpiralContext *sc, Geom::Point p, guint state)
{
SPDesktop *desktop = SP_EVENT_CONTEXT(sc)->desktop;
Inkscape::Preferences *prefs = Inkscape::Preferences::get();
int const snaps = prefs->getInt("/options/rotationsnapsperpi/value", 12);
if (!sc->item) {
if (Inkscape::have_viable_layer(desktop, sc->_message_context) == false) {
return;
}
/* Create object */
Inkscape::XML::Document *xml_doc = sp_document_repr_doc(SP_EVENT_CONTEXT_DOCUMENT(sc));
Inkscape::XML::Node *repr = xml_doc->createElement("svg:path");
repr->setAttribute("sodipodi:type", "spiral");
/* Set style */
sp_desktop_apply_style_tool(desktop, repr, "/tools/shapes/spiral", false);
sc->item = (SPItem *) desktop->currentLayer()->appendChildRepr(repr);
Inkscape::GC::release(repr);
sc->item->transform = sp_item_i2doc_affine(SP_ITEM(desktop->currentLayer())).inverse();
sc->item->updateRepr();
sp_canvas_force_full_redraw_after_interruptions(desktop->canvas, 5);
}
SnapManager &m = desktop->namedview->snap_manager;
m.setup(desktop, true, sc->item);
Geom::Point pt2g = to_2geom(p);
m.freeSnapReturnByRef(Inkscape::SnapPreferences::SNAPPOINT_NODE, pt2g);
Geom::Point const p0 = to_2geom(sp_desktop_dt2doc_xy_point(desktop, sc->center));
Geom::Point const p1 = to_2geom(sp_desktop_dt2doc_xy_point(desktop, from_2geom(pt2g)));
SPSpiral *spiral = SP_SPIRAL(sc->item);
Geom::Point const delta = p1 - p0;
gdouble const rad = Geom::L2(delta);
gdouble arg = Geom::atan2(delta) - 2.0*M_PI*spiral->revo;
if (state & GDK_CONTROL_MASK) {
arg = sp_round(arg, M_PI/snaps);
}
/* Fixme: these parameters should be got from dialog box */
sp_spiral_position_set(spiral, p0[Geom::X], p0[Geom::Y],
/*expansion*/ sc->exp,
/*revolution*/ sc->revo,
rad, arg,
/*t0*/ sc->t0);
/* status text */
GString *rads = SP_PX_TO_METRIC_STRING(rad, desktop->namedview->getDefaultMetric());
sc->_message_context->setF(Inkscape::IMMEDIATE_MESSAGE,
_("<b>Spiral</b>: radius %s, angle %5g°; with <b>Ctrl</b> to snap angle"),
rads->str, sp_round((arg + 2.0*M_PI*spiral->revo)*180/M_PI, 0.0001));
g_string_free(rads, FALSE);
}