//IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING. // By downloading, copying, installing or using the software you agree to this license. // If you do not agree to this license, do not download, install, // copy or use the software. // License Agreement // For Open Source Computer Vision Library //Copyright (C) 2000-2008, Intel Corporation, all rights reserved. //Copyright (C) 2008-2010, Willow Garage Inc., all rights reserved. //Third party copyrights are property of their respective owners. //Redistribution and use in source and binary forms, with or without modification, //are permitted provided that the following conditions are met: // * Redistribution's of source code must retain the above copyright notice, // this list of conditions and the following disclaimer. // * Redistribution's in binary form must reproduce the above copyright notice, // this list of conditions and the following disclaimer in the documentation // and/or other materials provided with the distribution. // * The name of the copyright holders may not be used to endorse or promote products // derived from this software without specific prior written permission. //This software is provided by the copyright holders and contributors "as is" and //any express or implied warranties, including, but not limited to, the implied //warranties of merchantability and fitness for a particular purpose are disclaimed. //In no event shall the Intel Corporation or contributors be liable for any direct, //indirect, incidental, special, exemplary, or consequential damages //(including, but not limited to, procurement of substitute goods or services; //loss of use, data, or profits; or business interruption) however caused //and on any theory of liability, whether in contract, strict liability, //or tort (including negligence or otherwise) arising in any way out of //the use of this software, even if advised of the possibility of such damage. //--------------------Google Code 2010 -- Yannick Verdie--------------------// #ifdef HAVE_QT #include //Static and global first static GuiReceiver guiMainThread; static int parameterSystemC = 1; static char* parameterSystemV[] = {""}; static bool multiThreads = false; static int last_key = -1; QWaitCondition key_pressed; QMutex mutexKey; //end static and global double cvGetRatioWindow_QT(const char* name) { double result = -1; QMetaObject::invokeMethod(&guiMainThread, "getRatioWindow", //Qt::DirectConnection, Qt::AutoConnection, Q_RETURN_ARG(double, result), Q_ARG(QString, QString(name))); return result; } void cvSetRatioWindow_QT(const char* name,double prop_value) { QMetaObject::invokeMethod(&guiMainThread, "setRatioWindow", Qt::AutoConnection, Q_ARG(QString, QString(name)), Q_ARG(double, prop_value)); } double cvGetPropWindow_QT(const char* name) { double result = -1; QMetaObject::invokeMethod(&guiMainThread, "getPropWindow", //Qt::DirectConnection, Qt::AutoConnection, Q_RETURN_ARG(double, result), Q_ARG(QString, QString(name))); return result; } void cvSetPropWindow_QT(const char* name,double prop_value) { QMetaObject::invokeMethod(&guiMainThread, "setPropWindow", Qt::AutoConnection, Q_ARG(QString, QString(name)), Q_ARG(double, prop_value)); } void cvSetModeWindow_QT(const char* name, double prop_value) { QMetaObject::invokeMethod(&guiMainThread, "toggleFullScreen", Qt::AutoConnection, Q_ARG(QString, QString(name)), Q_ARG(double, prop_value)); } double cvGetModeWindow_QT(const char* name) { double result = -1; QMetaObject::invokeMethod(&guiMainThread, "isFullScreen", Qt::AutoConnection, Q_RETURN_ARG(double, result), Q_ARG(QString, QString(name))); return result; } CV_IMPL void cvDisplayOverlay(const char* name, const char* text, int delayms) { QMetaObject::invokeMethod(&guiMainThread, "displayInfo", Qt::AutoConnection, //Qt::DirectConnection, Q_ARG(QString, QString(name)), Q_ARG(QString, QString(text)), Q_ARG(int, delayms)); } CV_IMPL void cvDisplayStatusBar(const char* name, const char* text, int delayms) { QMetaObject::invokeMethod(&guiMainThread, "displayStatusBar", Qt::AutoConnection, //Qt::DirectConnection, Q_ARG(QString, QString(name)), Q_ARG(QString, QString(text)), Q_ARG(int, delayms)); } CV_IMPL int cvInitSystem( int, char** ) { return 0; } CV_IMPL int cvWaitKey( int arg ) { int result = -1; unsigned long delayms;//in milliseconds if (arg<=0) delayms = ULONG_MAX; else delayms = arg; if (multiThreads) { mutexKey.lock(); if(key_pressed.wait(&mutexKey,delayms))//false if timeout { result = last_key; } last_key = -1; mutexKey.unlock(); }else{ //cannot use wait here because events will not be distributed before processEvents (the main eventLoop is broken) //so I create a Thread for the QTimer QTimer timer(&guiMainThread); QObject::connect(&timer, SIGNAL(timeout()), &guiMainThread, SLOT(timeOut())); timer.setSingleShot(true); if (arg>0) timer.start(arg); while(!guiMainThread._bTimeOut) { qApp->processEvents(QEventLoop::AllEvents); mutexKey.lock(); if (last_key != -1) { result = last_key; last_key = -1; timer.stop(); //printf("keypressed\n"); } mutexKey.unlock(); if (result!=-1) break; else usleep(2);//to decrease CPU usage } guiMainThread._bTimeOut = false; } return result; } //Yannick Verdie //This function is experimental and some functions (such as cvSet/getWindowProperty will not work) //We recommend not using this function for now CV_IMPL int cvStartLoop(int (*pt2Func)(int argc, char *argv[]), int argc, char* argv[]) { multiThreads = true; QFuture future = QtConcurrent::run(pt2Func,argc,argv); return guiMainThread.start(); } CV_IMPL void cvStopLoop() { qApp->exit(); } CV_IMPL CvWindow* icvFindWindowByName( const char* arg ) { QPointer window = NULL; if( !arg ) CV_Error( CV_StsNullPtr, "NULL name string" ); QString name(arg); QPointer w; foreach (QWidget *widget, QApplication::topLevelWidgets()) { w = (CvWindow*) widget; if (w->name==name) { window = w; break; } } return window; } CvTrackbar* icvFindTrackbarByName( const char* name_trackbar, const char* name_window ) { QPointer result = NULL; QPointer w = icvFindWindowByName( name_window ); if( !w ) CV_Error( CV_StsNullPtr, "NULL window handler" ); QString nameQt = QString(name_trackbar); QPointer t; //Warning ---- , asume the location 0 is myview and max-1 the status bar for (int i = 1; i < w->layout->layout()->count()-2; ++i) { t = (CvTrackbar*) w->layout->layout()->itemAt(i); if (t->trackbar_name==nameQt) { result = t; break; } } return result; } CV_IMPL int icvInitSystem() { static int wasInitialized = 0; // check initialization status if( !wasInitialized) { new QApplication(parameterSystemC,parameterSystemV); wasInitialized = 1; qDebug()<<"init done"<windowTitle().toLatin1().data(); } CV_IMPL void cvMoveWindow( const char* name, int x, int y ) { QMetaObject::invokeMethod(&guiMainThread, "moveWindow", //Qt::BlockingQueuedConnection, Qt::AutoConnection, Q_ARG(QString, QString(name)), Q_ARG(int, x), Q_ARG(int, y) ); } CV_IMPL void cvResizeWindow(const char* name, int width, int height ) { QMetaObject::invokeMethod(&guiMainThread, "resizeWindow", //Qt::BlockingQueuedConnection, Qt::AutoConnection, Q_ARG(QString, QString(name)), Q_ARG(int, width), Q_ARG(int, height) ); } CV_IMPL int cvCreateTrackbar2( const char* trackbar_name, const char* window_name, int* val, int count, CvTrackbarCallback2 on_notify, void* userdata ) { //TODO: implement the real one, not a wrapper return cvCreateTrackbar( trackbar_name, window_name, val, count, (CvTrackbarCallback)on_notify ); } CV_IMPL int cvStartWindowThread() { return 0; } CV_IMPL int cvCreateTrackbar( const char* trackbar_name, const char* window_name, int* value, int count, CvTrackbarCallback on_change) { if (multiThreads) QMetaObject::invokeMethod(&guiMainThread, "addSlider", Qt::AutoConnection, Q_ARG(QString, QString(trackbar_name)), Q_ARG(QString, QString(window_name)), Q_ARG(void*, (void*)value), Q_ARG(int, count), Q_ARG(void*, (void*)on_change) ); else guiMainThread.addSlider(QString(trackbar_name),QString(window_name),(void*)value,count,(void*)on_change); return 1;//demmy value } CV_IMPL int cvGetTrackbarPos( const char* trackbar_name, const char* window_name ) { int result = -1; QPointer t = icvFindTrackbarByName( trackbar_name, window_name ); if (t) result = t->slider->value(); return result; } CV_IMPL void cvSetTrackbarPos( const char* trackbar_name, const char* window_name, int pos ) { QPointer t = icvFindTrackbarByName( trackbar_name, window_name ); if (t) t->slider->setValue(pos); } /* assign callback for mouse events */ CV_IMPL void cvSetMouseCallback( const char* window_name, CvMouseCallback on_mouse,void* param ) { QPointer w = icvFindWindowByName( window_name ); if (!w) CV_Error(CV_StsNullPtr, "NULL window handler" ); w->setMouseCallBack(on_mouse, param); } CV_IMPL void cvShowImage( const char* name, const CvArr* arr ) { QMetaObject::invokeMethod(&guiMainThread, "showImage", //Qt::BlockingQueuedConnection, Qt::DirectConnection, Q_ARG(QString, QString(name)), Q_ARG(void*, (void*)arr) ); } //----------OBJECT---------------- GuiReceiver::GuiReceiver() : _bTimeOut(false) { icvInitSystem(); qApp->setQuitOnLastWindowClosed ( false );//maybe the user would like to access this setting } double GuiReceiver::getRatioWindow(QString name) { QPointer w = icvFindWindowByName( name.toLatin1().data() ); if (!w) return -1; return (double)w->getView()->getRatio(); } void GuiReceiver::setRatioWindow(QString name, double arg2 ) { QPointer w = icvFindWindowByName( name.toLatin1().data() ); if (!w) return; int flags = (int) arg2; if (w->getView()->getRatio() == flags)//nothing to do return; //if valid flags if (flags == CV_WINDOW_FREERATIO || flags == CV_WINDOW_KEEPRATIO) w->getView()->setRatio(flags); } double GuiReceiver::getPropWindow(QString name) { QPointer w = icvFindWindowByName( name.toLatin1().data() ); if (!w) return -1; return (double)w->flags; } void GuiReceiver::setPropWindow(QString name, double arg2 ) { QPointer w = icvFindWindowByName( name.toLatin1().data() ); if (!w) return; int flags = (int) arg2; if (w->flags == flags)//nothing to do return; switch(flags) { case CV_WINDOW_NORMAL: w->layout->setSizeConstraint(QLayout::SetMinAndMaxSize); w->flags = flags; break; case CV_WINDOW_AUTOSIZE: w->layout->setSizeConstraint(QLayout::SetFixedSize); w->flags = flags; break; default:; } } double GuiReceiver::isFullScreen(QString name) { QPointer w = icvFindWindowByName( name.toLatin1().data() ); if (!w) return -1; if (w->isFullScreen()) return CV_WINDOW_FULLSCREEN; else return CV_WINDOW_NORMAL; } //accept CV_WINDOW_NORMAL or CV_WINDOW_FULLSCREEN void GuiReceiver::toggleFullScreen(QString name, double flags ) { QPointer w = icvFindWindowByName( name.toLatin1().data() ); if (!w) return; if (w->isFullScreen() && flags == CV_WINDOW_NORMAL) w->showNormal(); if (!w->isFullScreen() && flags == CV_WINDOW_FULLSCREEN) w->showFullScreen(); } void GuiReceiver::createWindow( QString name, int flags ) { if (!qApp) CV_Error(CV_StsNullPtr, "NULL session handler" ); // Check the name in the storage if( icvFindWindowByName( name.toLatin1().data() )) { return; } //QPointer w1 = new CvWindow(name, flags); } void GuiReceiver::refreshEvents() { QAbstractEventDispatcher::instance(qApp->instance()->thread())->processEvents(QEventLoop::AllEvents); //qDebug()<<"refresh ?"<processEvents(QEventLoop::AllEvents); } void GuiReceiver::timeOut() { _bTimeOut = true; } void GuiReceiver::displayInfo( QString name, QString text, int delayms ) { QPointer w = icvFindWindowByName( name.toLatin1().data() ); if (w && delayms > 0) w->displayInfo(text,delayms); } void GuiReceiver::displayStatusBar( QString name, QString text, int delayms ) { QPointer w = icvFindWindowByName( name.toLatin1().data() ); if (w && delayms > 0) w->displayStatusBar(text,delayms); } void GuiReceiver::showImage(QString name, void* arr) { //qDebug()<<"inshowimage"< w = icvFindWindowByName( name.toLatin1().data() ); if (!w)//as observed in the previous implementation (W32, GTK or Carbon), create a new window is the pointer returned is null { cvNamedWindow( name.toLatin1().data() ); w = icvFindWindowByName( name.toLatin1().data() ); } if( w && arr ) { w->updateImage(arr); } else { qDebug()<<"Do nothing (Window or Image NULL)"< w = icvFindWindowByName( name.toLatin1().data() ); if (w) { w->close(); //in not-multiThreads mode, looks like the window is hidden but not deleted //so I do it manually //otherwise QApplication do it for me if the exec command was executed (in multiThread mode) if (!multiThreads) delete w; } } void GuiReceiver::destroyAllWindow() { if (!qApp) CV_Error(CV_StsNullPtr, "NULL session handler" ); if (multiThreads) { qApp->closeAllWindows(); }else{ QPointer w; foreach (QWidget *widget, QApplication::topLevelWidgets()) { w = (CvWindow*) widget; w->close(); delete w; } } } void GuiReceiver::moveWindow(QString name, int x, int y) { QPointer w = icvFindWindowByName( name.toLatin1().data() ); if (w) w->move(x,y); } void GuiReceiver::resizeWindow(QString name, int width, int height) { QPointer w = icvFindWindowByName( name.toLatin1().data() ); if (w) w->resize(width, height); } void GuiReceiver::addSlider(QString trackbar_name, QString window_name, void* value, int count, void* on_change) { QPointer w = icvFindWindowByName( window_name.toLatin1().data() ); if (!w) return; if (!value) CV_Error(CV_StsNullPtr, "NULL value pointer" ); if (count<= 0)//count is the max value of the slider, so must be bigger than 0 CV_Error(CV_StsNullPtr, "Max value of the slider must be bigger than 0" ); w->addSlider(trackbar_name,(int*)value,count,(CvTrackbarCallback) on_change); } int GuiReceiver::start() { return qApp->exec(); } CvTrackbar::CvTrackbar(CvWindow* arg, QString name, int* value, int count, CvTrackbarCallback on_change ) { setObjectName(trackbar_name); parent = arg; trackbar_name = name; dataSlider = value; callback = on_change; slider = new QSlider(Qt::Horizontal); slider->setFocusPolicy(Qt::StrongFocus); slider->setMinimum(0); slider->setMaximum(count); slider->setPageStep(5); slider->setValue(*value); slider->setTickPosition(QSlider::TicksBelow); //Change style of the Slider slider->setStyleSheet(str_Trackbar_css); //QFile qss(PATH_QSLIDERCSS); //if (qss.open(QFile::ReadOnly)) //{ // slider->setStyleSheet(QLatin1String(qss.readAll())); // qss.close(); //} //this next line does not work if we change the style with a stylesheet, why ? (bug in QT ?) //slider->setTickPosition(QSlider::TicksBelow); label = new QPushButton; label->setFlat(true); setLabel(slider->value()); QObject::connect( slider, SIGNAL( valueChanged( int ) ),this, SLOT( update( int ) ) ); QObject::connect( label, SIGNAL( clicked() ),this, SLOT( createDialog() )); //label->setStyleSheet("QPushButton:disabled {color: black}"); addWidget(label);//name + value addWidget(slider);//slider } void CvTrackbar::createDialog() { bool ok= false; //crash if I access the value directly to give them to QInputDialog, so do a copy first. int value = slider->value(); int step = slider->singleStep(); int min = slider->minimum(); int max = slider->maximum(); int i = QInputDialog::getInt(this->parentWidget(), tr("Slider %1").arg(trackbar_name), tr("New value:"), value, min, max, step, &ok); if (ok) slider->setValue(i); } void CvTrackbar::update(int myvalue) { setLabel(myvalue); *dataSlider = myvalue; if (callback) callback(myvalue); } void CvTrackbar::setLabel(int myvalue) { QString nameNormalized = trackbar_name.leftJustified( 10, ' ', true ); QString valueMaximum = QString("%1").arg(slider->maximum()); QString str = QString("%1 (%2/%3)").arg(nameNormalized).arg(myvalue,valueMaximum.length(),10,QChar('0')).arg(valueMaximum); label->setText(str); } CvTrackbar::~CvTrackbar() { delete slider; delete label; } CvWindow::CvWindow(QString arg, int arg2) { moveToThread(qApp->instance()->thread()); name = arg; flags = arg2; setAttribute(Qt::WA_DeleteOnClose);//in other case, does not release memory setContentsMargins(0,0,0,0); setWindowTitle(name); setObjectName(name); resize(400,300); //CV_MODE_NORMAL or CV_MODE_OPENGL myview = new ViewPort(this, CV_MODE_NORMAL,CV_WINDOW_KEEPRATIO);//parent, mode_display, keep_aspect_ratio myview->setAlignment(Qt::AlignHCenter); shortcutZ = new QShortcut(Qt::CTRL + Qt::Key_P, this); QObject::connect( shortcutZ, SIGNAL( activated ()),myview, SLOT( resetZoom( ) )); shortcutPlus = new QShortcut(QKeySequence(QKeySequence::ZoomIn), this); QObject::connect( shortcutPlus, SIGNAL( activated ()),myview, SLOT( ZoomIn() )); shortcutMinus = new QShortcut(QKeySequence(QKeySequence::ZoomOut), this); QObject::connect(shortcutMinus, SIGNAL( activated ()),myview, SLOT( ZoomOut() )); shortcutLeft = new QShortcut(Qt::CTRL + Qt::Key_Left, this); QObject::connect( shortcutLeft, SIGNAL( activated ()),myview, SLOT( siftWindowOnLeft() )); shortcutRight = new QShortcut(Qt::CTRL + Qt::Key_Right, this); QObject::connect( shortcutRight, SIGNAL( activated ()),myview, SLOT( siftWindowOnRight() )); shortcutUp = new QShortcut(Qt::CTRL + Qt::Key_Up, this); QObject::connect(shortcutUp, SIGNAL( activated ()),myview, SLOT( siftWindowOnUp() )); shortcutDown = new QShortcut(Qt::CTRL + Qt::Key_Down, this); QObject::connect(shortcutDown, SIGNAL( activated ()),myview, SLOT( siftWindowOnDown() )); layout = new QBoxLayout(QBoxLayout::TopToBottom); //layout = new CustomLayout; layout->setObjectName(QString::fromUtf8("boxLayout")); layout->setContentsMargins(0, 0, 0, 0); layout->setSpacing(0); layout->setMargin(0); layout->addWidget(myview,Qt::AlignCenter); //layout->addStretch(0); if (flags == CV_WINDOW_AUTOSIZE) layout->setSizeConstraint(QLayout::SetFixedSize); //now status bar myBar = new QStatusBar; myBar->setSizeGripEnabled(false); myBar->setMaximumHeight(20); myBar_msg = new QLabel; myBar_msg->setFrameStyle(QFrame::Raised); myBar_msg->setAlignment(Qt::AlignHCenter); //myBar_msg->setWordWrap(true); myBar->addWidget(myBar_msg); layout->addWidget(myBar,Qt::AlignCenter); setLayout(layout); show(); } CvWindow::~CvWindow() { QLayoutItem *child; if (layout) { while ((child = layout->takeAt(0)) != 0) delete child; delete layout; } delete myBar; delete myBar_msg; delete shortcutZ; delete shortcutPlus; delete shortcutMinus; delete shortcutLeft; delete shortcutRight; delete shortcutUp; delete shortcutDown; } ViewPort* CvWindow::getView() { return myview; } void CvWindow::displayInfo(QString text,int delayms) { myview->startDisplayInfo(text, delayms); } void CvWindow::displayStatusBar(QString text,int delayms) { myBar->showMessage(text,delayms); } void CvWindow::updateImage(void* arr) { myview->updateImage(arr); } void CvWindow::setMouseCallBack(CvMouseCallback m, void* param) { myview->setMouseCallBack(m,param); } void CvWindow::addSlider(QString name, int* value, int count,CvTrackbarCallback on_change) { QPointer t = new CvTrackbar(this,name,value, count, on_change); t->setAlignment(Qt::AlignHCenter); layout->insertLayout(layout->count()-1,t);//max-1 means add trackbar between myview and statusbar } //Need more test here ! void CvWindow::keyPressEvent(QKeyEvent *event) { //see http://doc.trolltech.com/4.6/qt.html#Key-enum int key = event->key(); bool goodKey = false; if (key>=20 && key<=255 ) { key = (int)event->text().toLocal8Bit().at(0); goodKey = true; } if (key == Qt::Key_Escape) { key = 27; goodKey = true; } //control plus (Z, +, -, up, down, left, right) are used for zoom/panning functions if (event->modifiers() != Qt::ControlModifier && goodKey) { mutexKey.lock(); last_key = key; //last_key = event->nativeVirtualKey (); mutexKey.unlock(); key_pressed.wakeAll(); //event->accept(); } QWidget::keyPressEvent(event); } void CvWindow::readSettings()//not tested { QSettings settings("Trolltech", "Application Example"); QPoint pos = settings.value("pos", QPoint(200, 200)).toPoint(); QSize size = settings.value("size", QSize(400, 400)).toSize(); resize(size); move(pos); } void CvWindow::writeSettings()//not tested { QSettings settings("Trolltech", "Application Example"); settings.setValue("pos", pos()); settings.setValue("size", size()); } //Here is ViewPort ViewPort::ViewPort(CvWindow* arg, int arg2, int arg3) { centralWidget = arg, mode = arg2; keepRatio = arg3; setupViewport(centralWidget); setContentsMargins(0,0,0,0); setObjectName(QString::fromUtf8("graphicsView")); timerDisplay = new QTimer(this); timerDisplay->setSingleShot(true); connect(timerDisplay, SIGNAL(timeout()), this, SLOT(stopDisplayInfo())); drawInfo = false; positionGrabbing = QPointF(0,0); positionCorners = QRect(0,0,size().width(),size().height()); on_mouse = NULL; mouseCoordinate = QPoint(-1,-1); #if defined(OPENCV_GL) if (mode == CV_MODE_OPENGL) { setViewport(new QGLWidget(QGLFormat(QGL::SampleBuffers))); initGL(); } #endif image2Draw_ipl=cvCreateImage(cvSize(centralWidget->width(),centralWidget->height()),IPL_DEPTH_8U,3); cvZero(image2Draw_ipl); setInteractive(false); setMouseTracking (true);//receive mouse event everytime } ViewPort::~ViewPort() { if (image2Draw_ipl) cvReleaseImage(&image2Draw_ipl); delete timerDisplay; } void ViewPort::setRatio(int flags) { keepRatio = flags; updateGeometry(); viewport()->update(); } int ViewPort::getRatio() { return keepRatio; } void ViewPort::resetZoom() { matrixWorld.reset(); controlImagePosition(); } void ViewPort::ZoomIn() { scaleView( 0.5,QPointF(size().width()/2,size().height()/2)); } void ViewPort::ZoomOut() { scaleView( -0.5,QPointF(size().width()/2,size().height()/2)); } //Note: move 2 percent of the window void ViewPort::siftWindowOnLeft() { float delta = 2*width()/(100.0*matrixWorld.m11()); moveView(QPointF(delta,0)); } //Note: move 2 percent of the window void ViewPort::siftWindowOnRight() { float delta = -2*width()/(100.0*matrixWorld.m11()); moveView(QPointF(delta,0)); } //Note: move 2 percent of the window void ViewPort::siftWindowOnUp() { float delta = 2*height()/(100.0*matrixWorld.m11()); moveView(QPointF(0,delta)); } //Note: move 2 percent of the window void ViewPort::siftWindowOnDown() { float delta = -2*height()/(100.0*matrixWorld.m11()); moveView(QPointF(0,delta)); } void ViewPort::startDisplayInfo(QString text, int delayms) { if (timerDisplay->isActive()) stopDisplayInfo(); infoText = text; timerDisplay->start(delayms); drawInfo = true; } void ViewPort::stopDisplayInfo() { timerDisplay->stop(); drawInfo = false; } inline bool ViewPort::isSameSize(IplImage* img1,IplImage* img2) { return img1->width == img2->width && img1->height == img2->height; } void ViewPort::updateImage(void* arr) { if (!arr) CV_Error(CV_StsNullPtr, "NULL arr pointer (in showImage)" ); IplImage* tempImage = (IplImage*)arr; if (!isSameSize(image2Draw_ipl,tempImage)) { cvReleaseImage(&image2Draw_ipl); image2Draw_ipl=cvCreateImage(cvGetSize(tempImage),IPL_DEPTH_8U,3); ratioX=float(image2Draw_ipl->width)/float(width()); ratioY=float(image2Draw_ipl->height)/float(height()); updateGeometry(); } cvConvertImage(tempImage,image2Draw_ipl,CV_CVTIMG_SWAP_RB ); viewport()->update(); } void ViewPort::setMouseCallBack(CvMouseCallback m, void* param) { on_mouse = m; on_mouse_param = param; } void ViewPort::controlImagePosition() { qreal left, top, right, bottom; //after check top-left, bottom right corner to avoid getting "out" during zoom/panning matrixWorld.map(0,0,&left,&top); if (left > 0) { matrixWorld.translate(-left,0); left = 0; } if (top > 0) { matrixWorld.translate(0,-top); top = 0; } //------- QSize sizeImage = size(); matrixWorld.map(sizeImage.width(),sizeImage.height(),&right,&bottom); if (right < sizeImage.width()) { matrixWorld.translate(sizeImage.width()-right,0); right = sizeImage.width(); } if (bottom < sizeImage.height()) { matrixWorld.translate(0,sizeImage.height()-bottom); bottom = sizeImage.height(); } //save corner position positionCorners.setTopLeft(QPoint(left,top)); positionCorners.setBottomRight(QPoint(right,bottom)); //save also the inv matrix matrixWorld_inv = matrixWorld.inverted(); viewport()->update(); } void ViewPort::moveView(QPointF delta) { matrixWorld.translate(delta.x(),delta.y()); controlImagePosition(); } //factor is -0.5 (zoom out) or 0.5 (zoom in) void ViewPort::scaleView(qreal factor,QPointF center) { factor/=5;//-0.1 <-> 0.1 factor+=1;//0.9 <-> 1.1 if (matrixWorld.m11()==1 && factor < 1) return; if (matrixWorld.m11()*factor<1) factor = 1/matrixWorld.m11(); //inverse the transform int a, b; matrixWorld_inv.map(center.x(),center.y(),&a,&b); matrixWorld.translate(a-factor*a,b-factor*b); matrixWorld.scale(factor,factor); controlImagePosition(); //display new zoom centralWidget->displayStatusBar(tr("Zoom: %1%").arg(matrixWorld.m11()*100),1000); if (matrixWorld.m11()>1) setCursor(Qt::OpenHandCursor); else unsetCursor(); } void ViewPort::wheelEvent(QWheelEvent *event) { scaleView( -event->delta() / 240.0,event->pos()); } void ViewPort::mousePressEvent(QMouseEvent *event) { int cv_event = -1, flags = 0; QPoint pt = event->pos(); //icvmouseHandler: pass parameters for cv_event, flags icvmouseHandler(event, mouse_down, cv_event, flags); icvmouseProcessing(QPointF(pt), cv_event, flags); if (matrixWorld.m11()>1) { setCursor(Qt::ClosedHandCursor); positionGrabbing = event->pos(); } QWidget::mousePressEvent(event); } void ViewPort::mouseReleaseEvent(QMouseEvent *event) { int cv_event = -1, flags = 0; QPoint pt = event->pos(); //icvmouseHandler: pass parameters for cv_event, flags icvmouseHandler(event, mouse_up, cv_event, flags); icvmouseProcessing(QPointF(pt), cv_event, flags); if (matrixWorld.m11()>1) setCursor(Qt::OpenHandCursor); QWidget::mouseReleaseEvent(event); } void ViewPort::mouseDoubleClickEvent(QMouseEvent *event) { int cv_event = -1, flags = 0; QPoint pt = event->pos(); //icvmouseHandler: pass parameters for cv_event, flags icvmouseHandler(event, mouse_dbclick, cv_event, flags); icvmouseProcessing(QPointF(pt), cv_event, flags); QWidget::mouseDoubleClickEvent(event); } void ViewPort::mouseMoveEvent(QMouseEvent *event) { int cv_event = -1, flags = 0; QPoint pt = event->pos(); //icvmouseHandler: pass parameters for cv_event, flags icvmouseHandler(event, mouse_move, cv_event, flags); icvmouseProcessing(QPointF(pt), cv_event, flags); if (matrixWorld.m11()>1 && event->buttons() == Qt::LeftButton) { QPointF dxy = (pt - positionGrabbing)/matrixWorld.m11(); positionGrabbing = event->pos(); moveView(dxy); } //I update the statusbar here because if the user does a cvWaitkey(0) (like with inpaint.cpp) //the status bar will only be repaint when a click occurs. viewport()->update(); QWidget::mouseMoveEvent(event); } //up, down, dclick, move void ViewPort::icvmouseHandler(QMouseEvent *event, type_mouse_event category, int &cv_event, int &flags) { switch(event->modifiers()) { case Qt::ShiftModifier: flags = CV_EVENT_FLAG_SHIFTKEY; break; case Qt::ControlModifier: flags = CV_EVENT_FLAG_CTRLKEY; break; case Qt::AltModifier: flags = CV_EVENT_FLAG_ALTKEY; break; case Qt::NoModifier : break; case Qt::MetaModifier: break; case Qt::KeypadModifier: break; default:; } switch(event->button()) { case Qt::LeftButton: cv_event = tableMouseButtons[category][0]; flags |= CV_EVENT_FLAG_LBUTTON; break; case Qt::RightButton: cv_event = tableMouseButtons[category][1]; flags |= CV_EVENT_FLAG_RBUTTON; break; case Qt::MidButton: cv_event = tableMouseButtons[category][2]; flags |= CV_EVENT_FLAG_MBUTTON; break; default:; } } void ViewPort::icvmouseProcessing(QPointF pt, int cv_event, int flags) { //to convert mouse coordinate qreal pfx, pfy; matrixWorld_inv.map(pt.x(),pt.y(),&pfx,&pfy); mouseCoordinate.rx()=floor(pfx*ratioX); mouseCoordinate.ry()=floor(pfy*ratioY); if (on_mouse) on_mouse( cv_event, mouseCoordinate.x(),mouseCoordinate.y(), flags, on_mouse_param ); } QSize ViewPort::sizeHint() const { if(image2Draw_ipl) { return QSize(image2Draw_ipl->width,image2Draw_ipl->height); } else { return QGraphicsView::sizeHint(); } } void ViewPort::resizeEvent ( QResizeEvent *event) { controlImagePosition(); ratioX=float(image2Draw_ipl->width)/float(width()); ratioY=float(image2Draw_ipl->height)/float(height()); if(keepRatio == CV_WINDOW_KEEPRATIO)//to keep the same aspect ratio { QSize newSize = QSize(image2Draw_ipl->width,image2Draw_ipl->height); newSize.scale(event->size(),Qt::KeepAspectRatio); //imageWidth/imageHeight = newWidth/newHeight +/- epsilon //ratioX = ratioY +/- epsilon //||ratioX - ratioY|| = epsilon if (fabs(ratioX - ratioY)*100> ratioX)//avoid infinity loop / epsilon = 1% of ratioX { resize(newSize); //move to the middle //newSize get the delta offset to place the picture in the middle of its parent newSize= (event->size()-newSize)/2; move(newSize.width(),newSize.height()); } } return QGraphicsView::resizeEvent(event); } void ViewPort::paintEvent(QPaintEvent* event) { QPainter myPainter(viewport()); myPainter.setWorldTransform(matrixWorld); draw2D(&myPainter); #if defined(OPENCV_GL) if (mode == CV_MODE_OPENGL && false)//disable it for now { setGL(this->width(),this->height()); draw3D(); unsetGL(); } #endif //in mode zoom/panning if (matrixWorld.m11()>1) { //if (size()>QSize()) myPainter.setWorldMatrixEnabled (false ); drawOverview(&myPainter); } //for statusbar if (mouseCoordinate.x()>=0 && mouseCoordinate.y()>=0 && mouseCoordinate.x()width && mouseCoordinate.y()height) { drawStatusBar(); } //for information overlay if (drawInfo) { myPainter.setWorldMatrixEnabled (false ); drawInstructions(&myPainter); } QGraphicsView::paintEvent(event); } void ViewPort::draw2D(QPainter *painter) { image2Draw_qt = QImage((uchar*) image2Draw_ipl->imageData, image2Draw_ipl->width, image2Draw_ipl->height,QImage::Format_RGB888); painter->drawImage(0,0,image2Draw_qt.scaled(this->width(),this->height(),Qt::IgnoreAspectRatio,Qt::SmoothTransformation)); } void ViewPort::drawStatusBar() { //centralWidget->myBar_msg->setMaximumWidth(width()); //CvScalar value = cvGet2D(image2Draw_ipl,mouseCoordinate.y(),mouseCoordinate.x()); QRgb rgbValue = image2Draw_qt.pixel(mouseCoordinate); centralWidget->myBar_msg->setText(tr("Coordinate: %1x%2 ~ ") .arg(mouseCoordinate.x()) .arg(mouseCoordinate.y())+ tr("R:%3 ").arg(qRed(rgbValue))+//.arg(value.val[0])+ tr("G:%4 ").arg(qGreen(rgbValue))+//.arg(value.val[1])+ tr("B:%5").arg(qBlue(rgbValue))//.arg(value.val[2]) ); } void ViewPort::drawOverview(QPainter *painter) { QSize viewSize = size(); viewSize.scale ( 100, 100,Qt::KeepAspectRatio ); const int margin = 5; painter->setBrush(QColor(0, 0, 0, 127)); painter->setPen(Qt::darkGreen); painter->drawRect(QRect(width()-viewSize.width()-margin, 0,viewSize.width(),viewSize.height())); qreal ratioSize = 1/matrixWorld.m11(); qreal ratioWindow = (qreal)(viewSize.height())/(qreal)(size().height()); painter->setPen(Qt::darkBlue); painter->drawRect(QRectF(width()-viewSize.width()-positionCorners.left()*ratioSize*ratioWindow-margin, -positionCorners.top()*ratioSize*ratioWindow, (viewSize.width()-1)*ratioSize, (viewSize.height()-1)*ratioSize) ); } void ViewPort::drawInstructions(QPainter *painter) { QFontMetrics metrics = QFontMetrics(font()); int border = qMax(4, metrics.leading()); QRect rect = metrics.boundingRect(0, 0, width() - 2*border, int(height()*0.125), Qt::AlignCenter | Qt::TextWordWrap, infoText); painter->setRenderHint(QPainter::TextAntialiasing); painter->fillRect(QRect(0, 0, width(), rect.height() + 2*border), QColor(0, 0, 0, 127)); painter->setPen(Qt::white); painter->fillRect(QRect(0, 0, width(), rect.height() + 2*border), QColor(0, 0, 0, 127)); painter->drawText((width() - rect.width())/2, border, rect.width(), rect.height(), Qt::AlignCenter | Qt::TextWordWrap, infoText); } #if defined(OPENCV_GL)//all this section -> not tested void ViewPort::initGL() { glShadeModel( GL_SMOOTH ); glHint( GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST ); glEnable( GL_TEXTURE_2D ); glEnable( GL_CULL_FACE ); glEnable( GL_DEPTH_TEST ); } //from http://steinsoft.net/index.php?site=Programming/Code%20Snippets/OpenGL/gluperspective //do not want to link glu void ViewPort::icvgluPerspective(GLdouble fovy, GLdouble aspect, GLdouble zNear, GLdouble zFar) { GLdouble xmin, xmax, ymin, ymax; ymax = zNear * tan(fovy * M_PI / 360.0); ymin = -ymax; xmin = ymin * aspect; xmax = ymax * aspect; glFrustum(xmin, xmax, ymin, ymax, zNear, zFar); } void ViewPort::setGL(int width, int height) { glMatrixMode(GL_PROJECTION); glPushMatrix(); glLoadIdentity(); icvgluPerspective(45, float(width) / float(height), 0.01, 1000); glMatrixMode(GL_MODELVIEW); glPushMatrix(); glLoadIdentity(); } void ViewPort::unsetGL() { glPopMatrix(); glMatrixMode(GL_PROJECTION); glPopMatrix(); } void ViewPort::draw3D() { //draw scene here glLoadIdentity(); glTranslated(0.0, 0.0, -1.0); // QVector3D p = convert(positionMouse); //glTranslated(p.x(),p.y(),p.z()); glRotatef( 55, 1, 0, 0 ); glRotatef( 45, 0, 1, 0 ); glRotatef( 0, 0, 0, 1 ); static const int coords[6][4][3] = { { { +1, -1, -1 }, { -1, -1, -1 }, { -1, +1, -1 }, { +1, +1, -1 } }, { { +1, +1, -1 }, { -1, +1, -1 }, { -1, +1, +1 }, { +1, +1, +1 } }, { { +1, -1, +1 }, { +1, -1, -1 }, { +1, +1, -1 }, { +1, +1, +1 } }, { { -1, -1, -1 }, { -1, -1, +1 }, { -1, +1, +1 }, { -1, +1, -1 } }, { { +1, -1, +1 }, { -1, -1, +1 }, { -1, -1, -1 }, { +1, -1, -1 } }, { { -1, -1, +1 }, { +1, -1, +1 }, { +1, +1, +1 }, { -1, +1, +1 } } }; for (int i = 0; i < 6; ++i) { glColor3ub( i*20, 100+i*10, i*42 ); glBegin(GL_QUADS); for (int j = 0; j < 4; ++j) { glVertex3d(0.2 * coords[i][j][0], 0.2 * coords[i][j][1], 0.2 * coords[i][j][2]); } glEnd(); } } #endif #endif