void MelodyNoteGlyphItem::setLedgerLinesItems(int count) { if (m_ledgerLines.count() == count) return; if (m_ledgerLines.count() < count) { QPen linePen = ledgerLinePen(); while (m_ledgerLines.count() < count) { QGraphicsLineItem *newLedgerLine = new QGraphicsLineItem(this); newLedgerLine->setPen(linePen); newLedgerLine->setVisible(false); m_ledgerLines.append(newLedgerLine); } } if (m_ledgerLines.count() > count) { while (m_ledgerLines.count() > count) { QGraphicsLineItem *ledgerLine = m_ledgerLines.takeLast(); if (ledgerLine != 0) { ledgerLine->setParentItem(0); delete ledgerLine; } } } }
void ConfigurationSpaceScene::drawConfigurationPath(const rl::plan::VectorList& path) { this->resetPath(); rl::plan::VectorList::const_iterator i = path.begin(); rl::plan::VectorList::const_iterator j = ++path.begin(); while (i != path.end() && j != path.end()) { QGraphicsLineItem* line = this->addLine( (*i)(this->axis0), -(*i)(this->axis1), (*j)(this->axis0), -(*j)(this->axis1), QPen(QBrush(QColor(0, 255, 0)), 0) ); line->setParentItem(this->scene); line->setZValue(3); this->path.push_back(line); ++i; ++j; } }
void ConfigurationSpaceScene::drawConfigurationEdge(const rl::math::Vector& u, const rl::math::Vector& v, const bool& free) { QGraphicsLineItem* line = this->addLine( u(this->axis0), -u(this->axis1), v(this->axis0), -v(this->axis1), free ? QPen(QBrush(QColor(0, 128, 0)), 0) : QPen(QBrush(QColor(128, 0, 0)), 0) ); line->setParentItem(this->scene); line->setZValue(2); this->edges.push_back(line); }
void TerrainProfileGraph::drawHoverCursor(const QPointF& position) { if (_hoverLine) { _scene->removeItem(_hoverLine); delete _hoverLine; _hoverLine = 0L; } if (_graphField.width() < 2 || _graphField.height() < 2) return; double xPos = position.x() < _graphField.x() ? _graphField.x() : (position.x() > _graphField.x() + _graphField.width() ? _graphField.x() + _graphField.width() : position.x()); QLineF vLine(xPos, _graphField.y(), xPos, _graphField.y() + _graphField.height()); QPointF* intersect = new QPointF; bool foundIntersect = false; for (int i=0; i < _graphLines.count(); i++) { if (vLine.intersect(_graphLines[i], intersect) == QLineF::BoundedIntersection) { foundIntersect = true; break; } } if (foundIntersect) { // Draw the upper line segment. Also serves as the parent item. _hoverLine = new QGraphicsLineItem(xPos, _graphField.y(), xPos, intersect->y() - 3); _hoverLine->setPen(_hoverPen); _hoverLine->setZValue(OVERLAY_Z); _scene->addItem(_hoverLine); // Draw the box around the intersect point QGraphicsRectItem* hoverBox = new QGraphicsRectItem(xPos - 3, intersect->y() - 3, 6, 6); hoverBox->setPen(_hoverPen); hoverBox->setBrush(Qt::NoBrush); hoverBox->setZValue(OVERLAY_Z); hoverBox->setParentItem(_hoverLine); // Draw the lower line segment QGraphicsLineItem* lowerLine = new QGraphicsLineItem(xPos, intersect->y() + 3, xPos, _graphField.y() + _graphField.height() + 5); lowerLine->setPen(_hoverPen); lowerLine->setZValue(OVERLAY_Z); lowerLine->setParentItem(_hoverLine); // Draw the text and background double y = (1.0 - ((intersect->y() - _graphField.y()) / _graphField.height())) * (_graphMaxY - _graphMinY) + _graphMinY; int textOffset = 10; QGraphicsSimpleTextItem* hoverText = new QGraphicsSimpleTextItem(QString::number(y) + tr("m")); hoverText->setBrush(QBrush(_axesColor)); hoverText->setFont(_graphFont); hoverText->setZValue(OVERLAY_Z); if (intersect->x() + textOffset + hoverText->boundingRect().width() < _graphField.x() + _graphField.width()) hoverText->setPos(intersect->x() + textOffset, intersect->y() - hoverText->boundingRect().height()); else hoverText->setPos(intersect->x() - textOffset - hoverText->boundingRect().width(), intersect->y() - hoverText->boundingRect().height()); QGraphicsRectItem* hoverTextBackground = new QGraphicsRectItem(hoverText->x() - 3, hoverText->y() - 1, hoverText->boundingRect().width() + 6, hoverText->boundingRect().height() + 1); hoverTextBackground->setPen(_axesPen); hoverTextBackground->setBrush(QBrush(_graphColor)); hoverTextBackground->setZValue(OVERLAY_Z); hoverTextBackground->setParentItem(_hoverLine); hoverText->setParentItem(_hoverLine); // Update callback if (_positionCallback.valid()) { double distanceFactor = ((xPos - _graphField.x()) / (double)_graphField.width()); osg::Vec3d worldStart, worldEnd; _calculator->getStart(ALTMODE_ABSOLUTE).toWorld(worldStart); _calculator->getEnd(ALTMODE_ABSOLUTE).toWorld(worldEnd); double worldX = (worldEnd.x() - worldStart.x()) * distanceFactor + worldStart.x(); double worldY = (worldEnd.y() - worldStart.y()) * distanceFactor + worldStart.y(); double worldZ = (worldEnd.z() - worldStart.z()) * distanceFactor + worldStart.z(); GeoPoint mapPos; mapPos.fromWorld(_calculator->getStart().getSRS(), osg::Vec3d(worldX, worldY, worldZ)); _positionCallback->updatePosition(mapPos.y(), mapPos.x(), hoverText->text().toStdString()); } } else { // No intersect found so just draw the full line at xPos _hoverLine = new QGraphicsLineItem(xPos, _graphField.y(), xPos, _graphField.y() + _graphField.height() + 5); _hoverLine->setPen(_hoverPen); _hoverLine->setZValue(OVERLAY_Z); _scene->addItem(_hoverLine); } // Draw distance text double x = ((xPos - _graphField.x()) / _graphField.width()) * _totalDistance; BoxedSimpleTextItem* distanceText = new BoxedSimpleTextItem(QString::number(x / 1000.0, 'f', 2) + tr("km"), _backgroundColor); distanceText->setBrush(QBrush(_axesColor)); distanceText->setFont(_graphFont); distanceText->setZValue(OVERLAY_Z); if(xPos - 2 - distanceText->boundingRect().width() > _graphField.x()) { distanceText->setPos(xPos - 2 - distanceText->boundingRect().width(), _graphField.y() + _graphField.height() + 2); } else { distanceText->setPos(xPos + 2, _graphField.y() + _graphField.height() + 2); } distanceText->setParentItem(_hoverLine); // Draw selection box drawSelectionBox(xPos); delete intersect; }