example_no_incrface.cpp

#include <iostream>
#include "common/ChangeQueue.h"
#include "fdp/FDPLayout.h"
#include "incrface/createEngine.h"

using namespace std;
using namespace Dynagraph;

typedef FDP::FDPLayout Layout;

void printChanges(ChangeQueue<Layout> &queue) {
    for(Layout::node_iter ni = queue.insN.nodes().begin(); ni!=queue.insN.nodes().end(); ++ni)
        reports[dgr::output] << "node " << gd<Name>(*ni) << " inserted at " << gd<NodeGeom>(*ni).pos << endl;
    for(Layout::graphedge_iter ei = queue.insE.edges().begin(); ei!=queue.insE.edges().end(); ++ei)
        reports[dgr::output] << "edge " << gd<Name>(*ei) << " inserted at " << gd<EdgeGeom>(*ei).pos << endl;
    for(Layout::node_iter ni = queue.modN.nodes().begin(); ni!=queue.modN.nodes().end(); ++ni)
        reports[dgr::output] << "node " << gd<Name>(*ni) << " moved to " << gd<NodeGeom>(*ni).pos << endl;
    for(Layout::graphedge_iter ei = queue.modE.edges().begin(); ei!=queue.modE.edges().end(); ++ei)
        reports[dgr::output] << "edge " << gd<Name>(*ei) << " moved to " << gd<EdgeGeom>(*ei).pos << endl;
    for(Layout::node_iter ni = queue.delN.nodes().begin(); ni!=queue.delN.nodes().end(); ++ni)
        reports[dgr::output] << "node " << gd<Name>(*ni) << " deleted" << endl;
    for(Layout::graphedge_iter ei = queue.delE.edges().begin(); ei!=queue.delE.edges().end(); ++ei)
        reports[dgr::output] << "edge " << gd<Name>(*ei) << " deleted" << endl;
}
void main() {
    // enable basic dynagraph report streams
    reports.enable(dgr::error,&cerr);
    reports.enable(dgr::cmdline);
    reports.enable(dgr::output);

    Layout layout,current(&layout);

    gd<GraphGeom>(&layout).resolution = Coord(0.1,0.1);
    gd<GraphGeom>(&layout).separation = Coord(0.5,0.5);

    ChangeQueue<Layout> queue(&layout,&current);
    DString engines = "shapegen,fdp,voronoi,visspline";
    gd<StrAttrs>(&layout)["engines"] = engines;

    ChangeProcessor<Layout> *server = createEngine(engines,&layout,&current).first;

    Layout::Node *m = layout.create_node("m"),*n = layout.create_node("n");
    gd<NodeGeom>(m).pos = Coord(10,10);
    gd<NodeGeom>(n).pos = Coord(15,10);
    gd<PolyDef>(m).exterior_box = gd<PolyDef>(n).exterior_box = Coord(1,1);
    queue.InsNode(n);
    queue.InsNode(m);

    reports[dgr::output] << "step 1" << endl;
    server->Process();
    printChanges(queue);
    queue.Execute(true);
    ModifyFlags(queue) = 0;

    Layout::Edge *e = layout.create_edge(m,n,"e").first;
    queue.InsEdge(e);

    reports[dgr::output] << "step 2" << endl;
    server->Process();
    printChanges(queue);
    queue.Execute(true);
    ModifyFlags(queue) = 0;

    gd<NodeGeom>(n).pos = Coord(5,5);
    ModifyNode(queue,n,DG_UPD_MOVE);

    reports[dgr::output] << "step 3" << endl;
    server->Process();
    printChanges(queue);
    queue.Execute(true);
    ModifyFlags(queue) = 0;

    queue.DelNode(n);

    reports[dgr::output] << "step 4" << endl;
    server->Process();
    printChanges(queue);
    queue.Execute(true);
    ModifyFlags(queue) = 0;
}