osgWidget2.rar_osg Qt_qt osg_qt+OSG_qt结合osg_qt键盘事件

#include "osgWidget.h" //#include "MouseKeyEvent.h" #include <QHBoxLayout> #include <QMouseEvent> #include <osg/LineWidth> class UseEventHandler:public::osgGA::GUIEventHandler { public: //handle函数，其中有两个极其重要的参数， //一个是const osgGA::GUIEventAdapter，注意有不少人在写时少写了个const结果就不灵了， //因为是虚函数，参数必须与父类中虚函数相应一致。该参数是用来识别各种事件类型的参数。 //第二个参数也很重要：osgGA::GUIActionAdapter，它是控制显示的参数，其实最重要的是它是Viewer的祖父类，由它可以得到viewer,在操作中有体现。 virtual bool handle(const osgGA::GUIEventAdapter &ea,osgGA::GUIActionAdapter &aa) { //将aa强制转换为viewer对象 osgViewer::Viewer *viewer=dynamic_cast<osgViewer::Viewer*>(&aa); if (!viewer)//如果转换失败则直接退出 { return false; } switch(ea.getEventType())//获取事件的类型，是键盘上的事件，还是鼠标上的事件以及鼠标单击，右击，双击等等。 { case osgGA::GUIEventAdapter::KEYDOWN://键盘响应事件 if (ea.getKey()==0xFF51) { //首先获得场景中的数据，然后在获得Group，然后在获得Group的子节点，最后设置显示模式 viewer->getSceneData()->asGroup()->getChild(0)->setNodeMask(1);//按向左的方向键 //viewer->getSceneData()->asGroup()->getChild(1)->setNodeMask(0); } if (ea.getKey()==0xFF53) { viewer->getSceneData()->asGroup()->getChild(0)->setNodeMask(0);//按下向右的方向键 //viewer->getSceneData()->asGroup()->getChild(1)->setNodeMask(1); } break; case osgGA::GUIEventAdapter::PUSH: if (ea.getButton()==4)//表示按鼠标右键 { viewer->getSceneData()->asGroup()->getChild(0)->setNodeMask(0); //viewer->getSceneData()->asGroup()->getChild(1)->setNodeMask(0); } else if(ea.getButton() == 1)//left button { viewer->getSceneData()->asGroup()->getChild(0)->setNodeMask(1); //viewer->getSceneData()->asGroup()->getChild(1)->setNodeMask(1); } break; case osgGA::GUIEventAdapter::DOUBLECLICK://表示双击类型 if (ea.getButton()==1)//表示按鼠标左键 { viewer->getSceneData()->asGroup()->getChild(0)->setNodeMask(1); //viewer->getSceneData()->asGroup()->getChild(1)->setNodeMask(1); } break; case osgGA::GUIEventAdapter::MOVE: //mouse move { //viewer->getSceneData()->asGroup()->getChild(0)->setNodeMask(0); break; } default: break; } return false; } }; osgWidget::osgWidget(osgViewer::ViewerBase::ThreadingModel threadingModel) :QWidget() { setThreadingModel(threadingModel); //qt5 must single thread.else be crash setKeyEventSetsDone(0); m_viewer = new osgViewer::Viewer; QHBoxLayout *mainLayout = new QHBoxLayout(this); QWidget *mainWidget = getWidgetFromGraphicWinQt(createGraphicWindow(20, 20 ,640, 480), makeCoordinate()); mainLayout->addWidget(mainWidget); connect(&m_timer, SIGNAL(timeout()), this, SLOT(update())); m_timer.start(10); //刷新(重绘)频率 } osgWidget::~osgWidget() { } osg::Geode *osgWidget::makeCoordinate() { //创建保存几何信息的对象 osg::ref_ptr<osg::Geometry> geom = new osg::Geometry(); //创建四个顶点 osg::ref_ptr<osg::Vec3Array> vPoint = new osg::Vec3Array(); vPoint->push_back(osg::Vec3(300, 280, 200)); vPoint->push_back(osg::Vec3(200, 360, 0)); //1 vPoint->push_back(osg::Vec3(300, 280, 200)); vPoint->push_back(osg::Vec3(300, 200, 0)); //2 vPoint->push_back(osg::Vec3(300, 280, 200)); vPoint->push_back(osg::Vec3(400, 360, 0)); //3 vPoint->push_back(osg::Vec3(200, 360, 0)); vPoint->push_back(osg::Vec3(300, 200, 0)); //t-l vPoint->push_back(osg::Vec3(200, 360, 0)); vPoint->push_back(osg::Vec3(400, 360, 0)); //t-r vPoint->push_back(osg::Vec3(300, 200, 0)); vPoint->push_back(osg::Vec3(400, 360, 0)); //l-r geom->setVertexArray(vPoint.get()); //为每个顶点指定一种颜色 osg::ref_ptr<osg::Vec4Array> c = new osg::Vec4Array(); c->push_back(osg::Vec4(1.0f, 0.0f, 0.0f, 1.0f)); c->push_back(osg::Vec4(1.0f, 0.0f, 0.0f, 1.0f)); c->push_back(osg::Vec4(1.0f, 0.0f, 0.0f, 1.0f)); c->push_back(osg::Vec4(1.0f, 0.0f, 0.0f, 1.0f)); c->push_back(osg::Vec4(1.0f, 0.0f, 0.0f, 1.0f)); c->push_back(osg::Vec4(1.0f, 0.0f, 0.0f, 1.0f)); c->push_back(osg::Vec4(0.0f, 0.0f, 1.0f, 1.0f)); //坐标原点为蓝色 c->push_back(osg::Vec4(0.0f, 0.0f, 1.0f, 1.0f)); //z blue c->push_back(osg::Vec4(0.0f, 0.0f, 1.0f, 1.0f)); //坐标原点为蓝色 c->push_back(osg::Vec4(0.0f, 0.0f, 1.0f, 1.0f)); //z blue c->push_back(osg::Vec4(0.0f, 0.0f, 1.0f, 1.0f)); //坐标原点为蓝色 c->push_back(osg::Vec4(0.0f, 0.0f, 1.0f, 1.0f)); //z blue //如果没指定颜色则会变为黑色 geom->setColorArray(c.get()); geom->setColorBinding(osg::Geometry::BIND_PER_VERTEX); //三个轴 geom->addPrimitiveSet( new osg::DrawArrays(osg::PrimitiveSet::LINES, 0, 2)); //Y geom->addPrimitiveSet( new osg::DrawArrays(osg::PrimitiveSet::LINES, 2, 2)); //Y geom->addPrimitiveSet( new osg::DrawArrays(osg::PrimitiveSet::LINES, 4, 2)); //Z geom->addPrimitiveSet( new osg::DrawArrays(osg::PrimitiveSet::LINES, 6, 2)); //Y geom->addPrimitiveSet( new osg::DrawArrays(osg::PrimitiveSet::LINES, 8, 2)); //Y geom->addPrimitiveSet( new osg::DrawArrays(osg::PrimitiveSet::LINES, 10, 2)); //Z osg::ref_ptr<osgText::Text> pTextOAuxis = new osgText::Text; pTextOAuxis->setText(QString("O(300,280,200)").toStdWString().c_str()); pTextOAuxis->setFont("Fonts/simhei.ttf"); pTextOAuxis->setAxisAlignment(osgText::Text::SCREEN); pTextOAuxis->setCharacterSize(10); pTextOAuxis->setPosition(osg::Vec3(250, 280, 200)); osg::ref_ptr<osgText::Text> pTextAAuxis = new osgText::Text; pTextAAuxis->setText(QString("A(200,360,0)").toStdWString().c_str()); pTextAAuxis->setFont("Fonts/simhei.ttf"); pTextAAuxis->setAxisAlignment(osgText::Text::SCREEN); pTextAAuxis->setCharacterSize(10); pTextAAuxis->setPosition(osg::Vec3(150, 360, 0)); osg::ref_ptr<osgText::Text> pTextBAuxis = new osgText::Text; pTextBAuxis->setText(QString("B(300,200,0)").toStdWString().c_str()); pTextBAuxis->setFont("Fonts/simhei.ttf"); pTextBAuxis->setAxisAlignment(osgText::Text::SCREEN); pTextBAuxis->setCharacterSize(10); pTextBAuxis->setPosition(osg::Vec3(250, 200, 0)); osg::ref_ptr<osgText::Text> pTextCAuxis = new osgText::Text; pTextCAuxis->setText(QString("C(400,360,0)").toStdWString().c_str()); pTextCAuxis->setFont("Fonts/simhei.ttf"); pTextCAuxis->setAxisAlignment(osgText::Text::SCREEN); pTextCAuxis->setCharacterSize(10); pTextCAuxis->setPosition(osg::Vec3(350, 360, 0)); osg::ref_ptr<osg::Geode> geode = new osg::Geode(); geode->getOrCreateStateSet()->setMode(GL_LIGHTING, osg::StateAttribute::OFF); geode->getOrCreateStateSet()->setAttribute(new osg::LineWidth(3.0), osg::StateAttribute::ON); //geode->addDrawable(pShapeDrawable.get()); geode->addDrawable(geom.get()); geode->addDrawable(pTextOAuxis.get()); geode->addDrawable(pTextAAuxis.get()); geode->addDrawable(pTextBAuxis.get()); geode->addDrawable(pTextCAuxis