SubdRepresentation::SubdRepresentation(Rectangle rect, Crop& crop, QDate date) : rect(rect), crop(crop) { this->setRect(get_rect().get_x(), - get_rect().get_y() - get_rect().get_height(), get_rect().get_width(), get_rect().get_height()); if (crop) { Plant& plant = crop.get_plant(); QString text = toQString(plant.get_name()); //text = re.sub("\s+", "\n", text) QGraphicsSimpleTextItem *textw = new QGraphicsSimpleTextItem(text); QFont font = textw->font(); font.setPointSize(6); font.setWeight(25); textw->setFont(font); center_text(textw, this->boundingRect()); textw->setParentItem(this); QString color_str = toQString(plant.get_color_str()); if (color_str == "") { color_str = "#FF00FF"; } QColor color = QColor(color_str); if (crop.is_planned_at_date(fromQDate(date)) && !crop.is_active_at_date(fromQDate(date))) { this->setBrush(QBrush(color, Qt::BDiagPattern)); } else { this->setBrush(QBrush(color)); } } }
ModelItemGraphics::ModelItemGraphics(const QPointF& Coords, const QString& ID, QGraphicsItem* Parent): QGraphicsRectItem(Coords.x(),Coords.y(),m_DefaultSize.width(),m_DefaultSize.height(),Parent), m_ID(ID), m_Ghost(false), m_Initialized(false) { setPen(QPen(QBrush(QColor(BUILDER_MODELVIEW_BORDERCOLOR)),2)); setFlag(QGraphicsItem::ItemIsMovable); setFlag(QGraphicsItem::ItemSendsGeometryChanges, true); setCursor(QCursor(Qt::OpenHandCursor)); // Model item ID QGraphicsSimpleTextItem* IDGraphics = new QGraphicsSimpleTextItem(ID,Parent); IDGraphics->setParentItem(this); QFont TmpFont = IDGraphics->font(); TmpFont.setPointSize(10); IDGraphics->setFont(TmpFont); QRectF IDRect = IDGraphics->boundingRect(); if (rect().width() < IDRect.width()+20) setRect(Coords.x(),Coords.y(),IDRect.width()+20,m_DefaultSize.height()); IDGraphics->setPos((rect().width()/2)-(IDRect.width()/2),(m_DefaultSize.height()/2)-(IDRect.height()/2)); }
void GraphViewer::onSceneMouseRelease(QGraphicsSceneMouseEvent *mouseEvent) { // need to put the connecting line on the background otherwise it is detected under the mouse _drawingEdge->setZValue(EDGE_LINE_Z); QGraphicsItem * item = _scene.itemAt(mouseEvent->scenePos(), QTransform()); if (qgraphicsitem_cast<QGraphicsEllipseItem*>(item) || qgraphicsitem_cast<QGraphicsSimpleTextItem*>(item)) { QGraphicsEllipseItem* vertex = qgraphicsitem_cast<QGraphicsEllipseItem*>(item->parentItem()); if (!vertex) vertex = qgraphicsitem_cast<QGraphicsEllipseItem*>(item); if (vertex) { double x = _drawingEdge->transform().dx(); double y = _drawingEdge->transform().dy(); _drawingEdge->setLine(0.0,0.0, vertex->scenePos().x()-x, vertex->scenePos().y()-y); _drawingEdge->setZValue(EDGE_LINE_Z); if (_drawingEdge->data(KEY_EDGE_VERTEX1) == vertex->data(KEY_EDGE_VERTEX1)) _scene.removeItem(_drawingEdge); else { int defaultWeight = 1; _drawingEdge->setData(KEY_EDGE_VERTEX2, vertex->data(KEY_VERTEX_ID)); _drawingEdge->setData(KEY_EDGE_WEIGHT, defaultWeight); // draw edge weight QGraphicsSimpleTextItem * edgeWeight = _scene.addSimpleText(QString("%1").arg(defaultWeight)); edgeWeight->setParentItem(_drawingEdge); edgeWeight->setBrush(Qt::blue); QLineF line = _drawingEdge->line(); edgeWeight->setTransform( QTransform::fromScale(0.005, 0.005) * QTransform::fromTranslate(line.x2()*0.5, line.y2()*0.5) ); edgeWeight->setZValue(EDGE_TEXT_Z); // add to graph edges _edges << _drawingEdge; } } } else { _scene.removeItem(_drawingEdge); } _isDrawingEdge=false; _drawingEdge=0; }
void HomeScreen::initSprite() { _sprite = new QGraphicsWidget(); QGraphicsItem* item; QGraphicsSimpleTextItem* text; QGraphicsProxyWidget* proxy; QLabel* label; QFont font; item = new QGraphicsPixmapItem(); item->setParentItem(_sprite); item->setPos((BACKGROUND_W - (400.0f / 0.75f)) * 0.5f, BACKGROUND_H - 400.0f); _avatar = static_cast<QGraphicsPixmapItem*>(item); item = new QGraphicsPixmapItem(LoaderThread::instance()->getCachedPixmap(IMAGE_TITLE)); item->setParentItem(_sprite); item->setPos(232.0f, 128.0f); font = QFont("Arial"); font.setPixelSize(12); font.setWeight(QFont::Normal); font.setStretch(80); text = new QGraphicsSimpleTextItem("http://conanchen.com/Kinetris"); text->setBrush(QColor::fromRgb(0xFF, 0xFF, 0xFF)); text->setFont(font); text->setParentItem(_sprite); text->setPos(248.0f, 264.0f - 3.0f); label = new QLabel(); label->resize(784, 24); label->setStyleSheet("background-color: transparent; color: #FFFFFF;"); label->setAlignment(Qt::AlignTop | Qt::AlignHCenter); proxy = new QGraphicsProxyWidget(); proxy->setParentItem(_sprite); proxy->setWidget(label); proxy->setPos(248.0f, 592.0f - 6.0f); _sprite_status = proxy; _status = label; }
void VisualMatrix::initSprite() { _sprite = new QGraphicsWidget(); QGraphicsItem* item; QGraphicsWidget* widget; QGraphicsRectItem* rect; QGraphicsColorizeEffect* effect; QGraphicsSimpleTextItem* text; QGraphicsProxyWidget* proxy; QLabel* label; QFont font; // Frame { item = new QGraphicsPixmapItem(LoaderThread::instance()->getCachedPixmap(IMAGE_FRAME_BG)); item->setParentItem(_sprite); item->setPos(0.0f, 0.0f); } // Frame { item = new QGraphicsPixmapItem(LoaderThread::instance()->getCachedPixmap(IMAGE_FRAME_MG)); item->setParentItem(_sprite); item->setPos(0.0f, 0.0f); } // Avatar { widget = new QGraphicsWidget(); widget->resize(BLOCK_LARGE * 10, BLOCK_LARGE * 20); widget->setFlags(QGraphicsItem::ItemClipsChildrenToShape); widget->setParentItem(_sprite); widget->setPos(170.0f, 50.0f); item = new QGraphicsPixmapItem(); item->setParentItem(widget); item->setPos(((BLOCK_LARGE * 10) - (320.0f / 0.75f)) * 0.5f, (BLOCK_LARGE * 20) - 320.0f); _avatar = widget; } // Help { widget = new QGraphicsWidget(); widget->resize(BLOCK_LARGE * 10, BLOCK_LARGE * 20); widget->setFlags(QGraphicsItem::ItemClipsChildrenToShape); widget->setParentItem(_sprite); widget->setPos(170.0f, 50.0f); rect = new QGraphicsRectItem(0.0f, 0.0f, BLOCK_LARGE * 10, BLOCK_LARGE * 20); rect->setBrush(QBrush(QColor::fromRgb(0x00, 0x00, 0x00, 0xC0))); rect->setParentItem(widget); font = QApplication::font(); font.setFamily("Arial"); font.setPixelSize(16); font.setWeight(QFont::Bold); font.setStretch(80); text = new QGraphicsSimpleTextItem(tr("Slide left and right: Move.")); text->setBrush(QColor::fromRgb(0xC0, 0xC0, 0xC0)); text->setFont(font); text->setParentItem(widget); text->setPos(((BLOCK_LARGE * 10) - text->boundingRect().width()) * 0.5f, 217.0f - 6.0f); text = new QGraphicsSimpleTextItem(tr("Swipe up: Hold. Swipe down: Drop.")); text->setBrush(QColor::fromRgb(0xC0, 0xC0, 0xC0)); text->setFont(font); text->setParentItem(widget); text->setPos(((BLOCK_LARGE * 10) - text->boundingRect().width()) * 0.5f, 237.0f - 6.0f); text = new QGraphicsSimpleTextItem(tr("Pull back, and make circles: Rotate.")); text->setBrush(QColor::fromRgb(0xC0, 0xC0, 0xC0)); text->setFont(font); text->setParentItem(widget); text->setPos(((BLOCK_LARGE * 10) - text->boundingRect().width()) * 0.5f, 257.0f - 6.0f); // widget->setVisible(false); _sprite_help = widget; } // Lines { rect = new QGraphicsRectItem(120.0f - 1.0f, 220.0f - 1.0f, 8.0f + 2.0f, 144.0f + 2.0f); rect->setBrush(QBrush(LoaderThread::instance()->getCachedPixmap(IMAGE_LINES_PROGRESS))); rect->setParentItem(_sprite); _sprite_lines = rect; } // Frame { item = new QGraphicsPixmapItem(LoaderThread::instance()->getCachedPixmap(IMAGE_FRAME_FG)); item->setParentItem(_sprite); item->setPos(0.0f, 0.0f); } // Field { widget = new QGraphicsWidget(); widget->resize(BLOCK_LARGE * 10, BLOCK_LARGE * 20); widget->setFlags(QGraphicsItem::ItemClipsChildrenToShape); widget->setParentItem(_sprite); widget->setPos(170.0f, 50.0f); _sprite_field = widget; _sprite_space.fill(NULL, _rows * _cols); } // Ghost { widget = new QGraphicsWidget(); widget->resize(BLOCK_LARGE * 4, BLOCK_LARGE * 4); widget->setParentItem(_sprite_field); widget->setPos(BLOCK_LARGE * getShapePositionInField(18, 3)); for (int i = 0; i < 4; ++i) { item = new QGraphicsPixmapItem(LoaderThread::instance()->getCachedPixmap(IMAGE_BLOCK_GHOST)); item->setParentItem(widget); } _sprite_ghost = widget; } // Tetromino { widget = new QGraphicsWidget(); widget->resize(BLOCK_LARGE * 4, BLOCK_LARGE * 4); widget->setParentItem(_sprite_field); widget->setPos(BLOCK_LARGE * getShapePositionInField(18, 3)); widget->setZValue(1.0f); effect = new QGraphicsColorizeEffect(widget); effect->setColor(QColor::fromRgb(0xFF, 0xFF, 0xFF)); effect->setStrength(0.0f); widget->setGraphicsEffect(effect); for (int i = 0; i < 4; ++i) { item = new QGraphicsPixmapItem(); item->setParentItem(widget); } _sprite_tetromino = widget; } // Hold { widget = new QGraphicsWidget(); widget->resize(BLOCK_LARGE * 4, BLOCK_LARGE * 2); widget->setScale(BLOCK_SMALL / BLOCK_LARGE); widget->setParentItem(_sprite); widget->setPos(56.0f, 108.0f + BLOCK_SMALL); effect = new QGraphicsColorizeEffect(widget); effect->setColor(QColor::fromRgb(0xFF, 0xFF, 0xFF)); effect->setStrength(0.0f); widget->setGraphicsEffect(effect); for (int i = 0; i < 4; ++i) { item = new QGraphicsPixmapItem(); item->setParentItem(widget); } _sprite_hold = widget; } // Hold fail { item = new QGraphicsPixmapItem(LoaderThread::instance()->getCachedPixmap(IMAGE_FAIL)); item->setScale(BLOCK_SMALL / BLOCK_LARGE); item->setParentItem(_sprite); item->setPos(56.0f + (BLOCK_SMALL * 3), 108.0f + (BLOCK_SMALL * 3)); item->setVisible(false); _sprite_holdFail = item; } // Next { widget = new QGraphicsWidget(); widget->resize(BLOCK_LARGE * 4, BLOCK_LARGE * 2); widget->setScale(BLOCK_SMALL / BLOCK_LARGE); widget->setParentItem(_sprite); widget->setPos(460.0f, 108.0f + BLOCK_SMALL); effect = new QGraphicsColorizeEffect(widget); effect->setColor(QColor::fromRgb(0xFF, 0xFF, 0xFF)); effect->setStrength(0.0f); widget->setGraphicsEffect(effect); for (int i = 0; i < 4; ++i) { item = new QGraphicsPixmapItem(); item->setParentItem(widget); } _sprite_next << widget; } // Next { widget = new QGraphicsWidget(); widget->resize(BLOCK_LARGE * 4, BLOCK_LARGE * 2); widget->setScale(BLOCK_SMALL / BLOCK_LARGE); widget->setParentItem(_sprite); widget->setPos(460.0f, 228.0f + BLOCK_SMALL); effect = new QGraphicsColorizeEffect(widget); effect->setColor(QColor::fromRgb(0xFF, 0xFF, 0xFF)); effect->setStrength(0.0f); widget->setGraphicsEffect(effect); for (int i = 0; i < 4; ++i) { item = new QGraphicsPixmapItem(); item->setParentItem(widget); } _sprite_next << widget; } // Next { widget = new QGraphicsWidget(); widget->resize(BLOCK_LARGE * 4, BLOCK_LARGE * 2); widget->setScale(BLOCK_SMALL / BLOCK_LARGE); widget->setParentItem(_sprite); widget->setPos(460.0f, 292.0f + BLOCK_SMALL); effect = new QGraphicsColorizeEffect(widget); effect->setColor(QColor::fromRgb(0xFF, 0xFF, 0xFF)); effect->setStrength(0.0f); widget->setGraphicsEffect(effect); for (int i = 0; i < 4; ++i) { item = new QGraphicsPixmapItem(); item->setParentItem(widget); } _sprite_next << widget; } // Font { font = QApplication::font(); font.setCapitalization(QFont::AllUppercase); } // Hold { text = new QGraphicsSimpleTextItem(tr("Hold")); text->setBrush(QColor::fromRgb(0x00, 0x00, 0x00)); text->setFont(font); text->setParentItem(_sprite); text->setPos(56.0f, 80.0f - 6.0f); } // Next { text = new QGraphicsSimpleTextItem(tr("Next")); text->setBrush(QColor::fromRgb(0x00, 0x00, 0x00)); text->setFont(font); text->setParentItem(_sprite); text->setPos(526.0f - text->boundingRect().width(), 80.0f - 6.0f); } // Level { text = new QGraphicsSimpleTextItem(tr("Level")); text->setBrush(QColor::fromRgb(0x00, 0x00, 0x00)); text->setFont(font); text->setParentItem(_sprite); text->setPos(56.0f, 316.0f - 6.0f); } // Level { label = new QLabel(); label->resize(48, 24); label->setStyleSheet("background-color: transparent; color: #FFFFFF;"); label->setAlignment(Qt::AlignTop | Qt::AlignLeft); proxy = new QGraphicsProxyWidget(); proxy->setParentItem(_sprite); proxy->setWidget(label); proxy->setPos(56.0f, 344.0f - 6.0f); _sprite_level = label; } // Score { text = new QGraphicsSimpleTextItem(tr("Score")); text->setBrush(QColor::fromRgb(0x00, 0x00, 0x00)); text->setFont(font); text->setParentItem(_sprite); text->setPos(176.0f, 564.0f - 6.0f); } // Score { label = new QLabel(); label->resize(148, 24); label->setStyleSheet("background-color: transparent; color: #FFFFFF;"); label->setAlignment(Qt::AlignTop | Qt::AlignRight); proxy = new QGraphicsProxyWidget(); proxy->setParentItem(_sprite); proxy->setWidget(label); proxy->setPos(256.0f, 564.0f - 6.0f); _sprite_score = label; } // Countdown { widget = new QGraphicsWidget(); widget->resize(BLOCK_LARGE * 10, BLOCK_LARGE * 20); widget->setFlags(QGraphicsItem::ItemClipsChildrenToShape); widget->setParentItem(_sprite); widget->setPos(170.0f, 50.0f); rect = new QGraphicsRectItem(0.0f, 0.0f, BLOCK_LARGE * 10, BLOCK_LARGE * 20); rect->setBrush(QBrush(QColor::fromRgb(0x00, 0x00, 0x00, 0xC0))); rect->setParentItem(widget); item = new QGraphicsPixmapItem(LoaderThread::instance()->getCachedPixmap(IMAGE_COUNT[0])); item->setParentItem(widget); item->setPos(77.0f, 197.0f); item->setVisible(false); _sprite_count << item; item = new QGraphicsPixmapItem(LoaderThread::instance()->getCachedPixmap(IMAGE_COUNT[1])); item->setParentItem(widget); item->setPos(77.0f, 197.0f); item->setVisible(false); _sprite_count << item; item = new QGraphicsPixmapItem(LoaderThread::instance()->getCachedPixmap(IMAGE_COUNT[2])); item->setParentItem(widget); item->setPos(77.0f, 197.0f); item->setVisible(false); _sprite_count << item; widget->setVisible(false); _sprite_countdown = widget; } // Game over { widget = new QGraphicsWidget(); widget->resize(BLOCK_LARGE * 10, BLOCK_LARGE * 20); widget->setFlags(QGraphicsItem::ItemClipsChildrenToShape); widget->setParentItem(_sprite); widget->setPos(170.0f, 50.0f); widget->setZValue(8.0f); rect = new QGraphicsRectItem(0.0f, 0.0f, BLOCK_LARGE * 10, BLOCK_LARGE * 20); rect->setBrush(QBrush(QColor::fromRgb(0x00, 0x00, 0x00, 0xC0))); rect->setParentItem(widget); item = new QGraphicsPixmapItem(LoaderThread::instance()->getCachedPixmap(IMAGE_OVER)); item->setParentItem(widget); item->setPos(4.0f, 172.0f); rect = new QGraphicsRectItem(0.0f, 0.0f, BLOCK_LARGE * 10, BLOCK_LARGE * 20); rect->setBrush(QBrush(QColor::fromRgb(0xFF, 0xFF, 0xFF))); rect->setParentItem(widget); _sprite_overFlash = rect; widget->setVisible(false); _sprite_over = widget; } }
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; }
void GraphViewer::onSceneMousePress(QGraphicsSceneMouseEvent *mouseEvent) { if (_vertices.isEmpty()) _initialText->setVisible(false); if (_scene.items(QRectF( mouseEvent->scenePos().x() - VERTEX_SIZE*0.5, mouseEvent->scenePos().y() - VERTEX_SIZE*0.5, VERTEX_SIZE, VERTEX_SIZE) ).isEmpty()) { // Create new vertex QGraphicsEllipseItem * vertex = _scene.addEllipse( QRectF(-VERTEX_SIZE*0.5, -VERTEX_SIZE*0.5, VERTEX_SIZE, VERTEX_SIZE), QPen(Qt::black, 0), QBrush(Qt::white) ); vertex->setTransform( QTransform::fromTranslate(mouseEvent->scenePos().x(), mouseEvent->scenePos().y()) ); vertex->setZValue(VERTEX_CIRCLE_Z); _vertices << vertex; int id = _vertices.size()-1; vertex->setData(KEY_VERTEX_ID, id); QGraphicsSimpleTextItem * vertexId = _scene.addSimpleText(QString("%1").arg(id+1)); vertexId->setParentItem(vertex); vertexId->setTransform( QTransform::fromScale(0.005, 0.005) * QTransform::fromTranslate(-VERTEX_SIZE*( (id < 9) ? 0.18 : 0.28 ), -VERTEX_SIZE*0.35) ); vertexId->setZValue(VERTEX_TEXT_Z); } else { // Propose to draw new edge QGraphicsItem * item = _scene.itemAt(mouseEvent->scenePos(), QTransform()); if (qgraphicsitem_cast<QGraphicsEllipseItem*>(item) || qgraphicsitem_cast<QGraphicsSimpleTextItem*>(item)) { QGraphicsEllipseItem* vertex = qgraphicsitem_cast<QGraphicsEllipseItem*>(item->parentItem()); if (!vertex) vertex = qgraphicsitem_cast<QGraphicsEllipseItem*>(item); if (vertex) { _isDrawingEdge=true; _drawingEdge = _scene.addLine(0.0, 0.0, mouseEvent->scenePos().x()-vertex->scenePos().x(), mouseEvent->scenePos().y()-vertex->scenePos().y(), QPen(Qt::black, 0)); _drawingEdge->setTransform(QTransform::fromTranslate(vertex->scenePos().x(), vertex->scenePos().y())); _drawingEdge->setZValue(VERTEX_CIRCLE_Z); _drawingEdge->setData(KEY_EDGE_VERTEX1, vertex->data(KEY_VERTEX_ID)); } } } }