void MainGraphicsView::keyPressEvent(QKeyEvent *event) { if(event->modifiers() & Qt::ControlModifier) { switch (event->key()) { case Qt::Key_Plus: scaleView(qreal(1.2)); break; case Qt::Key_Minus: case Qt::Key_Equal: scaleView(1 / qreal(1.2)); break; default: QGraphicsView::keyPressEvent(event); } } else { switch (event->key()) { case Qt::Key_Left: emit prevImage(); break; case Qt::Key_Right: emit nextImage(); break; default: QGraphicsView::keyPressEvent(event); } } }
void GraphWidget::keyPressEvent(QKeyEvent *event) { switch (event->key()) { case Qt::Key_Up: centerNode->moveBy(0, -20); break; case Qt::Key_Down: centerNode->moveBy(0, 20); break; case Qt::Key_Left: centerNode->moveBy(-20, 0); break; case Qt::Key_Right: centerNode->moveBy(20, 0); break; case Qt::Key_Plus: scaleView(1.2); break; case Qt::Key_Minus: scaleView(1 / 1.2); break; case Qt::Key_Space: case Qt::Key_Enter: foreach (QGraphicsItem *item, scene()->items()) { if (qgraphicsitem_cast<Node *>(item)) item->setPos(-150 + qrand() % 300, -150 + qrand() % 300); } break; default: QGraphicsView::keyPressEvent(event); } }
void CanvasView::keyPressEvent(QKeyEvent *event){ switch(event->key()) { case Qt::Key_Plus: scaleView(qreal(1.2)); break; case Qt::Key_Minus: scaleView(1 / qreal(1.2)); break; default: QGraphicsView::keyPressEvent(event); } }
// override mouse move event void Renderer::mouseMoveEvent(QMouseEvent * event) { QTextStream cout(stdout); cout << "Stub: Motion at " << event->x() << ", " << event->y() << ".\n"; timer->start(); m_mouseEnd = event->x(); if (m_button == Qt::LeftButton && m_modifier != Qt::ShiftModifier) { rotateView(m_mouseStart, m_mouseEnd, 1); } else if(m_button == Qt::MiddleButton && m_modifier != Qt::ShiftModifier) { rotateView(m_mouseStart, m_mouseEnd, 0.0, 1.0); } else if(m_button == Qt::RightButton && m_modifier != Qt::ShiftModifier) { rotateView(m_mouseStart, m_mouseEnd, 0.0, 0.0, 1.0); } else if((m_button == Qt::LeftButton || m_button == Qt::MiddleButton || m_button == Qt::RightButton) && m_modifier == Qt::ShiftModifier) { scaleView(m_mouseStart, m_mouseEnd); } m_mouseStart = m_mouseEnd; }
void InspectTool::keyReleaseEvent(QKeyEvent *event) { switch (event->key()) { case Qt::Key_Plus: zoomIn(); break; case Qt::Key_Minus: zoomOut(); break; case Qt::Key_1: case Qt::Key_2: case Qt::Key_3: case Qt::Key_4: case Qt::Key_5: case Qt::Key_6: case Qt::Key_7: case Qt::Key_8: case Qt::Key_9: { qreal newScale = ((event->key() - Qt::Key_0) * 1.0f); scaleView(newScale / m_contentItem->scale(), m_mousePosition, m_mousePosition); break; } default: break; } }
/*!\func TGraph::TGraph * --, * \param * - parent - * \return */ GraphBody::GraphBody(EnterInputs *parent) : QGraphicsView(parent), m_ui(new Ui::GraphBody) { LOG(LOG_DEBUG, QString(__FUNCTION__) + " <" + QString::number(__LINE__) + ">"); factory = 0; setState(new State()); m_ui->setupUi(this); this->parent = parent; line = new QGraphicsLineItem; scene.setItemIndexMethod(QGraphicsScene::NoIndex); setScene(&scene); setRenderHint(QPainter::Antialiasing); setTransformationAnchor(AnchorUnderMouse); setResizeAnchor(AnchorViewCenter); scaleView(1); //scene.setSceneRect(200*factor, 100*factor, width(), height()); setMinimumSize(400, 400); currentIndex = -1; scene.addItem(line); rootNode = getFactory()->newRoot(); node = rootNode; max_id = 0; foreach(INode* n, node->nodes()) n->show(); setLevelsPath(); change(false); }
void ZoomTool::keyReleaseEvent(QKeyEvent *event) { switch (event->key()) { case Qt::Key_Plus: zoomIn(); break; case Qt::Key_Minus: zoomOut(); break; case Qt::Key_1: case Qt::Key_2: case Qt::Key_3: case Qt::Key_4: case Qt::Key_5: case Qt::Key_6: case Qt::Key_7: case Qt::Key_8: case Qt::Key_9: { m_currentScale = ((event->key() - Qt::Key_0) * 1.0f); scaleView(view()->mapToScene(m_mousePos)); // view()->mapToScene(view()->rect().center()) break; } default: break; } }
void ReportView::init() { setBackgroundBrush(Qt::lightGray); //setRenderHints(QPainter::Antialiasing | // QPainter::SmoothPixmapTransform | QPainter::TextAntialiasing); scaleView(1); }
void MapGraphicsView::keyPressEvent(QKeyEvent *event) { if(event->modifiers() & Qt::ControlModifier) { switch (event->key()) { case Qt::Key_Plus: scaleView(qreal(1.2)); break; case Qt::Key_Minus: case Qt::Key_Equal: scaleView(1 / qreal(1.2)); break; default: QGraphicsView::keyPressEvent(event); } } }
void GraphicsView::wheelEvent(QWheelEvent *event) { if (event->modifiers() == Qt::ControlModifier) { scaleView(pow(double(2), event->delta() / 240.0)); return; } QGraphicsView::wheelEvent(event); }
void ZoomTool::wheelEvent(QWheelEvent *event) { if (event->orientation() != Qt::Vertical) return; Qt::KeyboardModifier smoothZoomModifier = Qt::ControlModifier; if (event->modifiers() & smoothZoomModifier) { int numDegrees = event->delta() / 8; m_currentScale += m_smoothZoomMultiplier * (numDegrees / 15.0f); scaleView(view()->mapToScene(m_mousePos)); } else if (!event->modifiers()) { if (event->delta() > 0) { m_currentScale = nextZoomScale(ZoomIn); } else if (event->delta() < 0) { m_currentScale = nextZoomScale(ZoomOut); } scaleView(view()->mapToScene(m_mousePos)); } }
void CanvasView::wheelEvent(QWheelEvent *event){ scaleView(pow((double)2, -event->delta() / 240.0)); /*setTransformationAnchor(QGraphicsView::AnchorUnderMouse); // scale the view / zoom in or out double scaleFactor = 1.15; if(0 < event->delta()) scale(scaleFactor, scaleFactor); // zoom in else scale(1.0 / scaleFactor, 1.0 / scaleFactor); // zoom out*/ }
void InspectTool::wheelEvent(QWheelEvent *event) { if (event->orientation() != Qt::Vertical) return; Qt::KeyboardModifier smoothZoomModifier = Qt::ControlModifier; if (event->modifiers() & smoothZoomModifier) { int numDegrees = event->delta() / 8; qreal newScale = m_contentItem->scale() + m_smoothScaleFactor * (numDegrees / 15.0f); scaleView(newScale / m_contentItem->scale(), m_mousePosition, m_mousePosition); } else if (!event->modifiers()) { if (event->delta() > 0) { zoomIn(); } else if (event->delta() < 0) { zoomOut(); } } }
void MainGraphicsView::wheelEvent(QWheelEvent *event) { qreal scale = pow((double)2, event->delta() / 240.0); if(event->modifiers() & Qt::ShiftModifier) { // m_wheelCounter += scale; // qDebug() << "Scroll Delta:"<<scale<<", m_wheelCounter:"<<m_wheelCounter; // if(m_wheelCounter > 3) // m_wheelCounter = 0; if(scale > 0) emit nextImage(); else emit prevImage(); } else { scaleView(scale); } }
MyGraphBase::MyGraphBase( QWidget* parent ) : QGraphicsView( parent ), maxPeriod( 39 ) { mScene = new QGraphicsScene(this); mScene->setItemIndexMethod(QGraphicsScene::NoIndex); setScene(mScene); setCacheMode(CacheBackground); setViewportUpdateMode(BoundingRectViewportUpdate); setRenderHint(QPainter::Antialiasing); setTransformationAnchor(AnchorUnderMouse); setResizeAnchor(AnchorViewCenter); minWayToLastPoint = 30; scaleView(qreal(0.9)); // Akceptuj upuszcanie obiektu do widgetu setAcceptDrops(true); mViewScale = qreal(0.9); }
void ImageViewerWidget::wheelEvent(QWheelEvent *event) { scaleView(pow((double)1.3, event->delta() / 240.0)); }
void ZoomTool::zoomTo100() { m_currentScale = 1.0f; scaleView(view()->mapToScene(view()->rect().center())); }
void MapGraphicsView::zoomOut() { scaleView(1 / qreal(1.2)); }
//! [5] void Graph_GraphicsView::wheelEvent(QWheelEvent *event){ scaleView(pow((double)2, event->delta() / 240.0)); }
void ZoomTool::zoomOut() { m_currentScale = nextZoomScale(ZoomOut); scaleView(view()->mapToScene(m_mousePos)); }
//! [5] //! //! //滚轮事件 void grapWidget::wheelEvent(QWheelEvent *event){ scaleView(pow((double)2, event->delta() / 240.0)); }
void GraphWidget::zoomOut() { scaleView(1 / qreal(1.2)); }
void centralwidget::wheelEvent(QWheelEvent *event) { scaleView(pow((double)2, -event->delta() / 240.0)); }
void InspectTool::zoomOut() { qreal newScale = nextZoomScale(ZoomOut); scaleView(newScale / m_contentItem->scale(), m_mousePosition, m_mousePosition); }
void InspectTool::touchEvent(QTouchEvent *event) { QList<QTouchEvent::TouchPoint> touchPoints = event->touchPoints(); switch (event->type()) { case QEvent::TouchBegin: if (touchPoints.count() == 1 && (event->touchPointStates() & Qt::TouchPointPressed)) { if (!m_pressAndHoldTimer.isActive()) m_pressAndHoldTimer.start(); m_mousePosition = touchPoints.first().pos(); initializeDrag(touchPoints.first().pos()); m_tapEvent = true; } else { m_tapEvent = false; } break; case QEvent::TouchUpdate: { if (touchPoints.count() > 1) m_tapEvent = false; if ((touchPoints.count() == 1) && (event->touchPointStates() & Qt::TouchPointMoved)) { m_mousePosition = touchPoints.first().pos(); moveItem(true); } else if ((touchPoints.count() == 2) && (!(event->touchPointStates() & Qt::TouchPointReleased))) { // determine scale factor const QTouchEvent::TouchPoint &touchPoint0 = touchPoints.first(); const QTouchEvent::TouchPoint &touchPoint1 = touchPoints.last(); qreal touchScaleFactor = QLineF(touchPoint0.pos(), touchPoint1.pos()).length() / QLineF(touchPoint0.lastPos(), touchPoint1.lastPos()).length(); QPointF oldcenter = (touchPoint0.lastPos() + touchPoint1.lastPos()) / 2; QPointF newcenter = (touchPoint0.pos() + touchPoint1.pos()) / 2; m_pinchStarted = true; scaleView(touchScaleFactor, newcenter, oldcenter); } break; } case QEvent::TouchEnd: { m_pressAndHoldTimer.stop(); if (m_pinchStarted) { m_pinchStarted = false; } if (touchPoints.count() == 1 && !m_dragStarted && !m_didPressAndHold && m_tapEvent) { m_tapEvent = false; bool doubleTap = event->timestamp() - m_touchTimestamp < static_cast<ulong>(QGuiApplication::styleHints()->mouseDoubleClickInterval()); if (doubleTap) { m_nameDisplayTimer.stop(); selectNextItem(); } else { selectItem(); } m_touchTimestamp = event->timestamp(); } m_didPressAndHold = false; break; } default: break; } }
/*!\func * * \param * - * \return */ void GraphBody::wheelEvent(QWheelEvent *event) { LOG(LOG_DEBUG, QString(__FUNCTION__) + " <" + QString::number(__LINE__) + ">"); if(event->modifiers() & Qt::ControlModifier) scaleView(pow((double)2, -event->delta() / 240.0)); }
void CSceneWidget::onZoomIn() { scaleView(qreal(1.2)); }
void MapGraphicsView::zoomIn() { scaleView(qreal(1.2)); }
void CSceneWidget::onZoomOut() { scaleView(1 / qreal(1.2)); }
/* Allow for a somewhat primative zoom. */ void Scene2D::wheelEvent(QWheelEvent *event) { scaleView(pow((double)2, -event->delta() / 240.0)); }