VideoWidget()
{
vc.Init();
vc.Play();
vc.get_frame(pixbuf);
set_size_request(pixbuf->get_width(), pixbuf->get_height());
}
virtual bool on_expose_event(GdkEventExpose* )
{
Glib::RefPtr<Gdk::Drawable> drawable = get_window();
vc.get_frame(pixbuf);
drawable->draw_pixbuf(get_style()->get_bg_gc(Gtk::STATE_NORMAL),
pixbuf->scale_simple(get_width(), get_height(), Gdk::INTERP_BILINEAR),
0, 0, 0, 0, -1 , -1, Gdk::RGB_DITHER_NONE, 0, 0);
Gdk::Point rect[4], barcode_center;
string str;
bool res = decode_barcode(pixbuf, rect, str, 100);
if (res)
{
Cairo::RefPtr<Cairo::Context> cr = drawable->create_cairo_context();
cr->set_line_width(3);
cr->set_source_rgb(1, 0.0, 0.0);
cr->move_to(rect[0].get_x(), rect[0].get_y() );
cr->line_to(rect[1].get_x(), rect[1].get_y() );
cr->line_to(rect[2].get_x(), rect[2].get_y() );
cr->line_to(rect[3].get_x(), rect[3].get_y() );
cr->line_to(rect[0].get_x(), rect[0].get_y() );
cr->stroke();
BarcodePropertyEstimation distance(get_width(), get_height(),
rect[0].get_x(), rect[0].get_y(),
rect[1].get_x(), rect[1].get_y(),
rect[2].get_x(), rect[2].get_y(),
rect[3].get_x(), rect[3].get_y());
Glib::RefPtr<Pango::Layout> pango_layout = Pango::Layout::create(cr);
Pango::FontDescription desc("Arial Rounded MT Bold");
desc.set_size(14 * PANGO_SCALE);
pango_layout->set_font_description(desc);
pango_layout->set_alignment(Pango::ALIGN_CENTER);
double dir = distance.calcDirection();
string dir_str;
if (dir > 2.3)
dir_str = "right";
else if (dir < -2.3)
dir_str = "left";
else
dir_str = "front";
double dist = distance.calcDistance();
string text = "Object ID: " + str +
"\nDistance: " + lexical_cast<string>(int(dist * 100) / 100) + "." +
lexical_cast<string>(int(dist * 100) % 100) +
"\nDirection: " + dir_str;
pango_layout->set_text(text);
Gdk::Point* max_x, *min_x, *max_y, *min_y;
boost::function<bool (Gdk::Point, Gdk::Point)> compare;
compare = bind(less<int>(), bind(&Gdk::Point::get_x, _1), bind(&Gdk::Point::get_x, _2));
max_x = max_element(rect, rect + 4, compare);
min_x = min_element(rect, rect + 4, compare);
compare = bind(less<int>(), bind(&Gdk::Point::get_y, _1), bind(&Gdk::Point::get_y, _2));
max_y = max_element(rect, rect + 4, compare);
min_y = min_element(rect, rect + 4, compare);
barcode_center = Gdk::Point(
(max_x->get_x() + min_x->get_x()) / 2,
(max_y->get_y() + min_y->get_y()) / 2);
const Pango::Rectangle extent = pango_layout->get_pixel_logical_extents();
cr->move_to(get_width() - extent.get_width() - 10,
get_height() - extent.get_height() - 10);
pango_layout->show_in_cairo_context(cr);
DetectedBarcode barcode(str, dir_str, distance.calcDistance());
vector<DetectedBarcode> vec;
vec.push_back(barcode);
ostringstream ostr;
xmlpp::Document document1;
listDetectedBarcodesToXML(document1.create_root_node("ObjectList"), vec);
document1.write_to_stream(ostr, "UTF-8");
mut.lock();
strXML = ostr.str();
mut.unlock();
}
return true;
}
virtual bool on_expose_event(GdkEventExpose* )
{
Glib::RefPtr<Gdk::Drawable> drawable = get_window();
vc.get_frame(pixbuf);
drawable->draw_pixbuf(get_style()->get_bg_gc(Gtk::STATE_NORMAL), pixbuf,
0, 0, 0, 0, -1 , -1, Gdk::RGB_DITHER_NONE, 0, 0);
Gdk::Point rect[4], barcode_center;
string str;
bool res = decode_barcode(pixbuf, rect, str, 500);
if (res)
{
Cairo::RefPtr<Cairo::Context> cr = drawable->create_cairo_context();
cr->set_line_width(3);
cr->set_source_rgb(1, 0.0, 0.0);
cr->move_to(rect[0].get_x(), rect[0].get_y());
cr->line_to(rect[1].get_x(), rect[1].get_y());
cr->line_to(rect[2].get_x(), rect[2].get_y());
cr->line_to(rect[3].get_x(), rect[3].get_y());
cr->line_to(rect[0].get_x(), rect[0].get_y());
cr->stroke();
DataMtxPlace distance(get_width(), get_height(),
rect[0].get_x(), rect[0].get_y(),
rect[1].get_x(), rect[1].get_y(),
rect[2].get_x(), rect[2].get_y(),
rect[3].get_x(), rect[3].get_y());
cout << "Distance: " << distance.calcDistance() <<
"\tSquare: " << distance.calcSquare() <<
"\tDirection: " << distance.calcDirection() << endl;
Glib::RefPtr<Pango::Layout> pango_layout = Pango::Layout::create(cr);
Pango::FontDescription desc("Arial Rounded MT Bold");
desc.set_size(14 * PANGO_SCALE);
pango_layout->set_font_description(desc);
pango_layout->set_alignment(Pango::ALIGN_CENTER);
string text = "Msg: " + str + "\nDist: " +
lexical_cast<string>(distance.calcDistance()) + "\nDir: " +
lexical_cast<string>(distance.calcDirection());
pango_layout->set_text(text);
Gdk::Point* max_x, *min_x, *max_y, *min_y;
boost::function<bool (Gdk::Point, Gdk::Point)> compare;
compare = bind(less<int>(), bind(&Gdk::Point::get_x, _1), bind(&Gdk::Point::get_x, _2));
max_x = max_element(rect, rect + 4, compare);
min_x = min_element(rect, rect + 4, compare);
compare = bind(less<int>(), bind(&Gdk::Point::get_y, _1), bind(&Gdk::Point::get_y, _2));
max_y = max_element(rect, rect + 4, compare);
min_y = min_element(rect, rect + 4, compare);
barcode_center = Gdk::Point(
(max_x->get_x() + min_x->get_x()) / 2,
(max_y->get_y() + min_y->get_y()) / 2);
const Pango::Rectangle extent = pango_layout->get_pixel_logical_extents();
cr->move_to(barcode_center.get_x() - extent.get_width() / 2,
barcode_center.get_y() - extent.get_height() / 2);
pango_layout->show_in_cairo_context(cr);
// cr->set_source_rgba(0, 0, 0, 0.6);
//
// int i = 0;
// if (center_barcode.get_x() < get_width() / 3)
// i = 0;
// else if (center_barcode.get_x() > (2 * get_width() / 3))
// i = 2;
// else
// i = 1;
//
// cr->rectangle(i * get_width() / 3, 0, i * get_width() / 3 + get_width() / 3, get_height());
// cr->fill_preserve();
}
// cr->set_source_rgba(0, 0, 0, 0.6);
// cr->move_to(get_width() / 3, 0);
// cr->line_to(get_width() / 3, get_height());
// cr->move_to(2 * get_width() / 3, 0);
// cr->line_to(2 * get_width() / 3, get_height());
// cr->stroke();
return true;
}
