C++ OptRect::max方法代码示例

static void sp_canvas_bpath_update(SPCanvasItem *item, Geom::Affine const &affine, unsigned int flags)
{
    SPCanvasBPath *cbp = SP_CANVAS_BPATH(item);

    item->canvas->requestRedraw((int)item->x1, (int)item->y1, (int)item->x2, (int)item->y2);

    if (reinterpret_cast<SPCanvasItemClass *>(sp_canvas_bpath_parent_class)->update) {
        reinterpret_cast<SPCanvasItemClass *>(sp_canvas_bpath_parent_class)->update(item, affine, flags);
    }

    sp_canvas_item_reset_bounds (item);

    if (!cbp->curve) return;

    cbp->affine = affine;

    Geom::OptRect bbox = bounds_exact_transformed(cbp->curve->get_pathvector(), affine);

    if (bbox) {
        item->x1 = (int)bbox->min()[Geom::X] - 1;
        item->y1 = (int)bbox->min()[Geom::Y] - 1;
        item->x2 = (int)bbox->max()[Geom::X] + 1;
        item->y2 = (int)bbox->max()[Geom::Y] + 1;
    } else {
        item->x1 = 0;
        item->y1 = 0;
        item->x2 = 0;
        item->y2 = 0;
    }
    item->canvas->requestRedraw((int)item->x1, (int)item->y1, (int)item->x2, (int)item->y2);
}

/**
* Takes a list of inkscape items, extracts the graph defined by
* connectors between them, and uses graph layout techniques to find
* a nice layout
*/
void graphlayout(std::vector<SPItem*> const &items) {
    if(items.empty()) {
        return;
    }

    list<SPItem *> selected;
    filterConnectors(items,selected);
    if (selected.empty()) return;

    const unsigned n=selected.size();
    //Check 2 or more selected objects
    if (n < 2) return;

    // add the connector spacing to the size of node bounding boxes
    // so that connectors can always be routed between shapes
    SPDesktop* desktop = SP_ACTIVE_DESKTOP;
    double spacing = 0;
    if(desktop) spacing = desktop->namedview->connector_spacing+0.1;

    map<string,unsigned> nodelookup;
    vector<Rectangle*> rs;
    vector<Edge> es;
    for (list<SPItem *>::iterator i(selected.begin());
         i != selected.end();
         ++i)
    {
        SPItem *u=*i;
        Geom::OptRect const item_box = u->desktopVisualBounds();
        if(item_box) {
            Geom::Point ll(item_box->min());
            Geom::Point ur(item_box->max());
            nodelookup[u->getId()]=rs.size();
            rs.push_back(new Rectangle(ll[0]-spacing,ur[0]+spacing,
                        ll[1]-spacing,ur[1]+spacing));
        } else {
            // I'm not actually sure if it's possible for something with a
            // NULL item-box to be attached to a connector in which case we
            // should never get to here... but if such a null box can occur it's
            // probably pretty safe to simply ignore
            //fprintf(stderr,"NULL item_box found in graphlayout, ignoring!\n");
        }
    }

    Inkscape::Preferences *prefs = Inkscape::Preferences::get();
    SimpleConstraints scx,scy;
    double ideal_connector_length = prefs->getDouble("/tools/connector/length", 100.0);
    double directed_edge_height_modifier = 1.0;

    bool directed =       prefs->getBool("/tools/connector/directedlayout");
    bool avoid_overlaps = prefs->getBool("/tools/connector/avoidoverlaplayout");

    for (list<SPItem *>::iterator i(selected.begin());
         i != selected.end();
         ++i)
    {
        SPItem *iu=*i;
        map<string,unsigned>::iterator i_iter=nodelookup.find(iu->getId());
        map<string,unsigned>::iterator i_iter_end=nodelookup.end();
        if(i_iter==i_iter_end) {
            continue;
        }
        unsigned u=i_iter->second;
        std::vector<SPItem *> nlist=iu->avoidRef->getAttachedConnectors(Avoid::runningFrom);
        list<SPItem *> connectors;

        connectors.insert(connectors.end(), nlist.begin(), nlist.end());

        for (list<SPItem *>::iterator j(connectors.begin());
                j != connectors.end();
                ++j) {
            SPItem *conn=*j;
            SPItem *iv;
            SPItem *items[2];
            assert(isConnector(conn));
            SP_PATH(conn)->connEndPair.getAttachedItems(items);
            if(items[0]==iu) {
                iv=items[1];
            } else {
                iv=items[0];
            }

            if (iv == NULL) {
                // The connector is not attached to anything at the
                // other end so we should just ignore it.
                continue;
            }

            // If iv not in nodelookup we again treat the connector
            // as disconnected and continue
            map<string,unsigned>::iterator v_pair=nodelookup.find(iv->getId());
            if(v_pair!=nodelookup.end()) {
                unsigned v=v_pair->second;
                //cout << "Edge: (" << u <<","<<v<<")"<<endl;
                es.push_back(make_pair(u,v));
                if(conn->style->marker_end.set) {
//.........这里部分代码省略.........