/*!
* \see drawBoundingBoxes(QPainter *aPainter, QPen *aPen)
* \see drawPolygons(QPainter *aPainter, QPen *aPen)
*
* It contains drawing of the confirmed and not confirmed selections either.
*/
void
ImageHolder::paintEvent(QPaintEvent *anEvent)
{
QLabel::paintEvent(anEvent);
QPainter painter(this);
painter.setRenderHint(QPainter::Antialiasing);
//painter.setRenderHint(QPainter::SmoothPixmapTransform);
QPen pen;
if (NoTool != tool_) {
pen.setWidth(1);
pen.setColor(QColor(Qt::black));
pen.setStyle(Qt::DashLine);
painter.setPen(pen);
if (BoundingBoxTool == tool_) {
/* scaling */
QRect bbox = bounding_box_.rect;
QPoint bboxTopLeft = bbox.topLeft() * scale_;
QPoint bboxBottomRight = bbox.bottomRight() * scale_;
bbox.setTopLeft(bboxTopLeft);
bbox.setBottomRight(bboxBottomRight);
painter.drawRect(bbox);
}
else if (PolygonTool == tool_) {
/* scaling */
QPoint point;
QPolygon poly = polygon_.poly;
for (int i = 0; i < poly.size(); i++) {
point.setX(poly.at(i).x());
point.setY(poly.at(i).y());
point *= scale_;
poly.remove(i);
poly.insert(i, point);
}
painter.drawPolygon(poly);
}
}
/* drawing bounding boxes */
drawBoundingBoxes(&painter, &pen);
drawPolygons(&painter, &pen);
}
void Storage::paintEvent(QPaintEvent *anEvent)
{
QLabel::paintEvent(anEvent);
QPainter painter(this);
painter.setRenderHint(QPainter::Antialiasing);
//painter.setRenderHint(QPainter::SmoothPixmapTransform);
QPen pen;
if (NoTool != tool_) {
pen.setWidth(5);
pen.setColor(QColor(Qt::white));
pen.setStyle(Qt::DashLine);
painter.setPen(pen);
if (BoundingBoxTool == tool_) {
/* с учётом масштаба */
QRect bbox = rect.getCoordinates();
QPoint bboxTopLeft = bbox.topLeft() * scale_;
QPoint bboxBottomRight = bbox.bottomRight() * scale_;
bbox.setTopLeft(bboxTopLeft);
bbox.setBottomRight(bboxBottomRight);
painter.drawRect(bbox);
}
else if (EllipseTool == tool_) {
/* с учётом масштаба */
QRect elli = ell.getCoordinates().normalized();
QPoint ellTopLeft = elli.topLeft() * scale_;
QPoint ellBottomRight = elli.bottomRight() * scale_;
elli.setTopLeft(ellTopLeft);
elli.setBottomRight(ellBottomRight);
if(1 < elli.height() && 1 < elli.width() )
{
painter.drawEllipse(elli);
}
// painter.drawRect(ell);
}
else if (ArrowTool == tool_) {
/* с учётом масштаба */
QLineF line = arrow.getCoordinates();
QPointF p1 = line.p1() * scale_;
QPointF p2 = line.p2() * scale_;
line.setP1(p1);
line.setP2(p2);
if(1 < line.length())
{
double angle = ::acos(line.dx() / line.length());
qreal Pi = atan(1)*4;
if (line.dy() >= 0)
angle = (Pi * 2) - angle;
QPointF arrowP1 = line.p1() + QPointF(sin(angle + Pi / 3) * arrow_size_,
cos(angle + Pi / 3) * arrow_size_);
QPointF arrowP2 = line.p1() + QPointF(sin(angle + Pi - Pi / 3) * arrow_size_,
cos(angle + Pi - Pi / 3) * arrow_size_);
QPolygonF arrowTop;
arrowTop.clear();
arrowTop << line.p1() << arrowP1 << arrowP2;
painter.drawLine(line);
painter.drawPolygon(arrowTop);///111
qDebug() << "arrowTop" << arrowTop;
arrow_top_ = arrowTop;
}
}
else if (PolygonTool == tool_) {
/* с учётом масштаба */
QPoint point;
QPolygon pol = poly.getCoordinates();
for (int i = 0; i < pol.size(); i++) {
point.setX(pol.at(i).x());
point.setY(pol.at(i).y());
point *= scale_;
pol.remove(i);
pol.insert(i, point);
}
painter.drawPolygon(pol);
}
}
/* рисуем фигуры */
drawBoundingBoxes(&painter, &pen);
drawPolygons(&painter, &pen);
drawEllipses(&painter, &pen);
drawArrows(&painter, &pen);
}
/*!
* parameters of polygons may vary depending on whether poly is selected or not or
* whether it's label is main or not.
*/
void
ImageHolder::drawPolygons(
QPainter *aPainter,
QPen *aPen
) const
{
if (0 == list_polygon_)
{
return;
/* NOTREACHED */
}
Qt::PenStyle penStyle = Qt::SolidLine;
/* default width is hardcoded */
int width = 2;
/* drawing all the polygons */
for (int i = 0; i < list_polygon_->size(); i++) {
penStyle = Qt::SolidLine;
int labelID = list_polygon_->at(i)->label_ID_;
/* setting color for the label of current bbox */
if (labelID < list_label_color_->count())
aPen->setColor(QColor(list_label_color_->at(labelID)));
/* in case there is no color for such label */
else
aPen->setColor(QColor(Qt::white));
/* checking whether labeled area is of main object or not */
if (labelID == *main_label_)
width = 3;
else
width = 2;
/* changing the line style and width if current area is selected(focused) */
if (PolyFigure == focused_selection_type_ &&
focused_selection_ == i) {
penStyle = Qt::DotLine;
width = 3;
}
QPoint point;
QPolygon poly = list_polygon_->at(i)->poly;
for (int j = 0; j < poly.size(); j++) {
point.setX(poly.at(j).x());
point.setY(poly.at(j).y());
/* scaling */
point *= scale_;
poly.remove(j);
poly.insert(j, point);
/* in case if it's focused */
if (focused_selection_ == i &&
focused_selection_type_ == PolyFigure) {
QPen circPen;
circPen.setWidth(2);
circPen.setStyle(Qt::SolidLine);
circPen.setColor(aPen->color());
aPainter->setPen(circPen);
/* filling the point if it is hovered */
if ((j == hovered_point_.pointID &&
i == hovered_point_.figureID &&
PolyFigure == hovered_point_.figure) ||
j == selected_point_) {
QBrush brush;
brush.setColor(aPen->color());
brush.setStyle(Qt::SolidPattern);
aPainter->setBrush(brush);
}
aPainter->drawEllipse(point, point_radius_, point_radius_);
aPainter->setBrush(Qt::NoBrush);
}
}
aPen->setWidth(width);
aPen->setStyle(penStyle);
aPainter->setPen(*aPen);
aPainter->drawPolygon(poly);
/* drawing label IDs of these polygons */
QString labelIDText =
QString("%1").arg(labelID);
QRect rect = poly.boundingRect();
int x = rect.center().x();
int y = rect.center().y();
aPainter->drawText(
x,
y,
20,
20,
Qt::AlignHCenter,
labelIDText
);
}
}