QGraphicsView *Page::GenerateGraphicsView()
{
QGraphicsView *graphicsView = new QGraphicsView();
graphicsView->setRenderHint(QPainter::Antialiasing, false);
graphicsView->setDragMode(QGraphicsView::RubberBandDrag);
graphicsView->setOptimizationFlags(QGraphicsView::DontSavePainterState);
graphicsView->setViewportUpdateMode(QGraphicsView::SmartViewportUpdate);
#ifndef QT_NO_OPENGL
//graphicsView->setViewport(new QGLWidget(QGLFormat(QGL::SampleBuffers)));
#endif
graphicsView->setRenderHint(QPainter::Antialiasing, true);
return graphicsView;
}
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
QWidget w;
QGraphicsView *view = new QGraphicsView;
QGraphicsScene scene;
view->setScene(&scene);
SmileyItem *item = new SmileyItem;
scene.addItem(item);
item->setFlag(QGraphicsItem::ItemIsMovable);
QSlider *slider = new QSlider(Qt::Horizontal);
slider->setRange(0,100);
slider->setValue(item->smileSize());
QObject::connect(slider, SIGNAL(valueChanged(int)), item, SLOT(setSmileSize(int)));
QObject::connect(item, SIGNAL(smileSizeChanged(int)), slider, SLOT(setValue(int)));
QVBoxLayout *l = new QVBoxLayout(&w);
l->addWidget(view);
l->addWidget(slider);
view->setRenderHint(QPainter::Antialiasing);
w.show();
w.resize(600,400);
return a.exec();
}
int main(int argc, char** argv)
{
//Reading polygon files
Polygon_2 poly;
QPolygonF poly_qt;
read_file("models/turtle_w.txt", poly, poly_qt);
//Compute straight skeleton
//*****This program now works for polygon WITHOUT HOLES.
SsPtr iss = CGAL::create_interior_straight_skeleton_2(poly.vertices_begin(), poly.vertices_end());
SsPtr ess = CGAL::create_exterior_straight_skeleton_2(EMaxOffset, poly);
//Constructing the graph combining the straight skeleton and polygon
std::vector<BridgingGraph> bg;
construct_bridging_graph(poly, *iss, *ess, bg);
//Compute perpendiculars
std::list<Perpendiculars> ppd;
generate_perpendiculars(*iss, *ess, bg, ppd);
deduplicate_perpendiculars<K>(ppd);
//Assign mountain and valley
std::list<Segment> mt;
std::list<Segment> vl;
MountainValley<K>(*iss, *ess, bg, ppd, mt, vl);
//Extracts skeleton from cgal and converts them to qt
std::list<QLineF> bis_qt;
convert_straight_skeleton(*iss, bis_qt);
convert_straight_skeleton(*ess, bis_qt);
std::list<QLineF> ppd_qt;
convert_perpendiculars<K>(ppd, ppd_qt);
std::list<QLineF> mt_qt, vl_qt;
convert_mountain_valley<K>(mt, mt_qt);
convert_mountain_valley<K>(vl, vl_qt);
//SETUP QT
//Create applicaiton
QApplication app(argc, argv);
//Create scene
QGraphicsScene scene;
createQTscene(scene, poly_qt, bis_qt, ppd_qt, mt_qt, vl_qt);
//Create view
QGraphicsView* view = new QGraphicsView(&scene);
CGAL::Qt::GraphicsViewNavigation nav;
view->installEventFilter(&nav);
view->viewport()->installEventFilter(&nav);
view->setRenderHint(QPainter::Antialiasing);
//view->keyPressEvent();
//Show view
view->show();
return app.exec();
}
Widget::Widget(QWidget *parent) :
QWidget(parent),
ui(new Ui::Widget)
{
ui->setupUi(this);
this->setWindowState(this->windowState() ^ Qt::WindowFullScreen);
QGraphicsView *view = ui->graphicsView;
view->setScene(&scene);
view->setWindowFlags (Qt::FramelessWindowHint);
view->setAlignment(Qt::AlignLeft | Qt::AlignTop);
view->setRenderHint(QPainter::Antialiasing);
view->setMaximumSize(size());
view->setVerticalScrollBarPolicy( Qt::ScrollBarAlwaysOff );
view->setHorizontalScrollBarPolicy( Qt::ScrollBarAlwaysOff );
view->setCacheMode(QGraphicsView::CacheBackground);
QGMenu *menu = new QGMenu(view->rect());
//menu->setOpacity(0);
scene.addItem(menu);
int size = 152 + 16;
for (int i = 0; i < 20 ;i++) {
int r = i / 5;
int c = i % 5;
QGTile *tile = new QGTile;
scene.addItem(tile);
tile->moveBy(c * size, r * size);
tile->installSceneEventFilter(menu);
}
menu->setZValue(100);
// QGraphicsItem *ball = new QGraphicsEllipseItem(0, 0, 20, 20);
// QTimeLine *timer = new QTimeLine(5000);
// timer->setFrameRange(0, 100);
// QGraphicsItemAnimation *animation = new QGraphicsItemAnimation;
// animation->setItem(ball);
// animation->setTimeLine(timer);
// for (int i = 0; i < 200; ++i)
// animation->setPosAt(i / 200.0, QPointF(i, i));
// scene.addItem(ball);
// timer->start();
}
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
// build data
GVGraph *graph = new GVGraph("Graph");
NodeId nid1 = graph->addNode("Node1");
GraphId gid1 = graph->addGraph("SubGraph1");
NodeId nid2 = graph->addNode("Node2", gid1);
NodeId nid3 = graph->addNode("Node3", gid1);
EdgeId eid1 = graph->addEdge(nid1, nid2, "Edge1");
graph->setEdgeAttribute(eid1, "label", "Edge1");
EdgeId eid2 = graph->addEdge(nid2, nid3, "Edge2");
graph->setEdgeAttribute(eid2, "label", "Edge2");
EdgeId eid3 = graph->addEdge(nid1, nid3, "Edge3");
graph->setEdgeAttribute(eid3, "label", "Edge3");
graph->applyLayout();
if (argc > 1 && strcmp(argv[1], "--no-gui") == 0) {
return 0;
}
// build ui
QGraphicsView *view = new QGraphicsView;
view->setRenderHint(QPainter::Antialiasing);
QGraphicsScene *scene = new QGraphicsScene;
view->setScene(scene);
Q_FOREACH (const GVNodePair &pair, graph->gvNodes()) {
const GVNode node = pair.second;
QGraphicsItem *item = new GVNodeItem(node, 0);
scene->addItem(item);
}
Q_FOREACH (const GVEdgePair &pair, graph->gvEdges()) {
const GVEdge edge = pair.second;
QGraphicsItem *item = new GVEdgeItem(edge, 0);
scene->addItem(item);
}
Q_FOREACH (const GVSubGraphPair &pair, graph->gvSubGraphs()) {
const GVSubGraph graph = pair.second;
QGraphicsItem *item = new GVGraphItem(graph, 0);
scene->addItem(item);
}
delete graph;
graph = 0;
view->show();
return app.exec();
}
int main(int argc, char **argv)
{
QApplication app(argc, argv);
QGraphicsScene scene;
scene.setSceneRect(0,0, 100, 100);
scene.addRect(QRectF(0,0, 100, 100));
scene.addLine(QLineF(0,0, 100, 100));
scene.addLine(QLineF(0,100, 100, 0));
QGraphicsView* view = new QGraphicsView(&scene);
CGAL::Qt::GraphicsViewNavigation navigation;
view->installEventFilter(&navigation);
view->viewport()->installEventFilter(&navigation);
view->setRenderHint(QPainter::Antialiasing);
view->show();
return app.exec();
}
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
QGraphicsView w;
QGraphicsScene scene;
w.setScene(&scene);
QGraphicsItem *smiley1 = addSmiley();
scene.addItem(smiley1);
QGraphicsItem *smiley2 = addSmiley();
scene.addItem(smiley2);
QGraphicsItem *smiley3 = addSmiley();
scene.addItem(smiley3);
// enter your code here
w.setRenderHint(QPainter::Antialiasing);
w.show();
return a.exec();
}
Widget::Widget(QWidget *parent)
: QWidget(parent)
{
QHBoxLayout * hbox = new QHBoxLayout;
QGraphicsView * view = new QGraphicsView;
GraphicsScene * scene = new GraphicsScene;
QPolygonF polygon;
qreal side = 20;
qreal dx = qSqrt(3)/2 * side;
polygon
// standing on a point
<< QPointF(dx, -side/2)
<< QPointF(0, -side)
<< QPointF(-dx, -side/2)
<< QPointF(-dx, side/2)
<< QPointF(0, side)
<< QPointF(dx, side/2);
// Sitting flat
// << QPointF(-side/2, dx)
// << QPointF(-side, 0)
// << QPointF(-side/2, -dx)
// << QPointF(side/2, -dx)
// << QPointF(side, 0)
// << QPointF(side/2, dx);
int h = 9;
int w = 17;
int mid_h = h/2;
int mid_w = w/2;
for(int r = 0; r < h; r++)
{
for(int c = 0; c < w; c++)
{
if(qAbs(mid_h - r) + qAbs(mid_w - c) > 8
|| (r % 2 != c % 2))
{
// don't add a hexagon, it isn't on the board!
}
else
{
BoardHexagon * hexagon = new BoardHexagon(0);
hexagon->setPolygon(polygon);
scene->addItem(hexagon);
hexagon->setPos(dx * c, side * 1.5 * r);
hexagon->setToolTip(QString::number(r) + "," + QString::number(c));
}
}
}
QGraphicsEllipseItem * ellipse = scene->addEllipse(-20, -20, 20, 20,QPen(), QBrush(QColor(Qt::green)));
this->makeDraggable(ellipse);
view->setRenderHint(QPainter::Antialiasing);
view->setScene(scene);
view->setMouseTracking(true);
hbox->addWidget(view);
this->setLayout(hbox);
this->resize(600, 400);
}