void QB2Draw::DrawSolidPolygon(const b2Vec2 *vertices, int32 vertexCount, const b2Color& /*unused*/) { if (painter==NULL) return; //Check the painter painter->setPen(Qt::white); //set the pen color painter->setBrush(Qt::transparent); //set the brush color QPolygon pol; //Calculate the polygon for (int i=0; i<vertexCount; i++) { //Add all points to polygon pol.insert(i,toQPoint(vertices[i])); } painter->drawPolygon(pol); //Draw the polygon }
void QB2Draw::DrawPolygon(const b2Vec2 *vertices, int32 vertexCount, const b2Color& /*unused*/) { if (painter==NULL) return; //Check the painter QPen pen;//Configure the pen pen.setBrush(Qt::white); //Set the pen color pen.setWidth(1); //Set pen width painter->setPen(pen); //Assign the pen painter->setBrush(Qt::transparent); //Set brush trasparent QPolygon pol; //Calculate the polygon for (int i=0; i<vertexCount; i++) { //Add all points to the polygon pol.insert(i,toQPoint(vertices[i])); } painter->drawPolyline(pol); //Draw the polyline }
/*! * \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 ); } }