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New functions with QT GUI:

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- 3 new points mostly done:
      - OpenGL support enabled (windows are rendered using GPU)
      - Save current screen (with overlay and so on...) with shortcut CTRL+S
      - Text rendering (with any system font, and possibility to set the style - normal, italic,... - the weight - normal, bold, ... - the color, the spacing between letters, and so on...)
This commit is contained in:
Yannick Verdie
2010-07-12 11:04:26 +00:00
parent 6436ce411b
commit c3eb7881f1
8 changed files with 173 additions and 61 deletions
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157
modules/highgui/src/window_QT.cpp
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@@ -51,10 +51,44 @@ static bool multiThreads = false;
static int last_key = -1;
QWaitCondition key_pressed;
QMutex mutexKey;
static const unsigned int threshold_zoom_img_region = 15;//the minimum zoom value to start displaying the values' grid
//end static and global
CV_IMPL CvFont cvFont_Qt(const char* nameFont, int pointSize,CvScalar color,int weight,int style, int spacing)
{
/*
//nameFont <- only Qt
//CvScalar color <- only Qt (blue_component, green_component, red\_component[, alpha_component])
int font_face;//<- style in Qt
const int* ascii;
const int* greek;
const int* cyrillic;
float hscale, vscale;
float shear;
int thickness;//<- weight in Qt
float dx;//spacing letter in Qt (0 default) in pixel
int line_type;//<- pointSize in Qt
*/
CvFont f = {nameFont,color,style,NULL,NULL,NULL,0,0,0,weight,spacing,pointSize};
return f;
}
CV_IMPL void cvAddText( CvArr* img, const char* text, CvPoint org, CvFont* font)
{
QMetaObject::invokeMethod(&guiMainThread,
"putText",
Qt::AutoConnection,
Q_ARG(void*, (void*) img),
Q_ARG(QString,QString(text)),
Q_ARG(QPoint, QPoint(org.x,org.y)),
Q_ARG(void*,(void*) font));
}
double cvGetRatioWindow_QT(const char* name)
{
double result = -1;
@@ -299,10 +333,10 @@ CV_IMPL int icvInitSystem()
new QApplication(parameterSystemC,parameterSystemV);
wasInitialized = 1;
qDebug()<<"init done"<<endl;
qDebug()<<"init done";
#if defined(OPENCV_GL)//OK tested !
qDebug()<<"opengl support available"<<endl;
qDebug()<<"opengl support available";
#endif
}
@@ -484,12 +518,6 @@ CV_IMPL void cvShowImage( const char* name, const CvArr* arr )
}
//----------OBJECT----------------
GuiReceiver::GuiReceiver() : _bTimeOut(false)
@@ -498,12 +526,43 @@ GuiReceiver::GuiReceiver() : _bTimeOut(false)
qApp->setQuitOnLastWindowClosed ( false );//maybe the user would like to access this setting
}
void GuiReceiver::putText(void* arg1, QString text, QPoint org, void* arg2)
{
CV_Assert(arg1);
IplImage* img = (IplImage*)arg1;
//for now, only support QImage::Format_RGB888
if (img->depth !=IPL_DEPTH_8U || img->nChannels != 3)
return;
CvFont* font = (CvFont*)arg2;
QImage qimg((uchar*) img->imageData, img->width, img->height,QImage::Format_RGB888);
QPainter qp(&qimg);
if (font)
{
QFont f(font->nameFont, font->line_type/*PointSize*/, font->thickness/*weight*/);
f.setStyle((QFont::Style)font->font_face/*style*/);
f.setLetterSpacing ( QFont::AbsoluteSpacing, font->dx/*spacing*/ );
//cvScalar(blue_component, green_component, red\_component[, alpha_component])
//Qt map non-transparent to 0xFF and transparent to 0
//OpenCV scalar is the reverse, so 255-font->color.val[3]
qp.setPen(QColor(font->color.val[2],font->color.val[1],font->color.val[0],255-font->color.val[3]));
qp.setFont ( f );
}
qp.drawText (org, text );
qp.end();
}
void GuiReceiver::saveWindowParameters(QString name)
{
QPointer<CvWindow> w = icvFindWindowByName( name.toLatin1().data() );
if (w)
w->writeSettings();
w->writeSettings();
}
void GuiReceiver::loadWindowParameters(QString name)
@@ -511,7 +570,7 @@ void GuiReceiver::loadWindowParameters(QString name)
QPointer<CvWindow> w = icvFindWindowByName( name.toLatin1().data() );
if (w)
w->readSettings();
w->readSettings();
}
double GuiReceiver::getRatioWindow(QString name)
@@ -625,13 +684,6 @@ void GuiReceiver::createWindow( QString name, int flags )
new CvWindow(name, flags);
}
void GuiReceiver::refreshEvents()
{
QAbstractEventDispatcher::instance(qApp->instance()->thread())->processEvents(QEventLoop::AllEvents);
//qDebug()<<"refresh ?"<<endl;
//qApp->processEvents(QEventLoop::AllEvents);
}
void GuiReceiver::timeOut()
{
_bTimeOut = true;
@@ -805,7 +857,7 @@ void CvTrackbar::createDialog()
bool ok= false;
//crash if I access the value directly to give them to QInputDialog, so do a copy first.
//crash if I access the values directly and give them to QInputDialog, so do a copy first.
int value = slider->value();
int step = slider->singleStep();
int min = slider->minimum();
@@ -1142,15 +1194,14 @@ ViewPort::ViewPort(CvWindow* arg, int arg2, int arg3)
positionCorners = QRect(0,0,size().width(),size().height());
on_mouse = NULL;
mouseCoordinate = QPoint(-1,-1);
on_openGL = NULL;
on_openGL_draw3D = NULL;
#if defined(OPENCV_GL)
if ( mode_display == CV_MODE_OPENGL)
{
QGLWidget* wGL = new QGLWidget(QGLFormat(QGL::SampleBuffers));
setViewport(wGL);
//QGLWidget* wGL = new QGLWidget(QGLFormat(QGL::SampleBuffers));
setViewport(new QGLWidget(QGLFormat(QGL::SampleBuffers)));
initGL();
}
#endif
@@ -1192,16 +1243,30 @@ void ViewPort::saveView()
// Save it..
if (QString::compare(extension, "png", Qt::CaseInsensitive) == 0)
{
image2Draw_qt_resized.save(fileName, "PNG");
return;
}
if (QString::compare(extension, "jpg", Qt::CaseInsensitive) == 0)
{
image2Draw_qt_resized.save(fileName, "JPG");
return;
}
if (QString::compare(extension, "bmp", Qt::CaseInsensitive) == 0)
{
image2Draw_qt_resized.save(fileName, "BMP");
return;
}
if (QString::compare(extension, "jpeg", Qt::CaseInsensitive) == 0)
{
image2Draw_qt_resized.save(fileName, "JPEG");
return;
}
qDebug()<<"file extension not recognized, please choose between JPG, JPEG, BMP or PNG";
}
}
@@ -1289,10 +1354,11 @@ inline bool ViewPort::isSameSize(IplImage* img1,IplImage* img2)
void ViewPort::updateImage(void* arr)
{
if (!arr)
CV_Error(CV_StsNullPtr, "NULL arr pointer (in showImage)" );
IplImage* tempImage = (IplImage*)arr;
//if (!arr)
//CV_Error(CV_StsNullPtr, "NULL arr pointer (in showImage)" );
CV_Assert(arr);
IplImage* tempImage = (IplImage*)arr;
if (!isSameSize(image2Draw_ipl,tempImage))
{
@@ -1319,7 +1385,7 @@ void ViewPort::setMouseCallBack(CvMouseCallback m, void* param)
void ViewPort::setOpenGLCallback(CvOpenGLCallback func,void* userdata)
{
on_openGL = func;
on_openGL_draw3D = func;
on_openGL_param = userdata;
}
@@ -1469,11 +1535,9 @@ void ViewPort::mouseMoveEvent(QMouseEvent *event)
if (param_matrixWorld.m11()>1 && event->buttons() == Qt::LeftButton)
{
QPointF dxy = (pt - positionGrabbing)/param_matrixWorld.m11();
positionGrabbing = event->pos();
moveView(dxy);
QPointF dxy = (pt - positionGrabbing)/param_matrixWorld.m11();
positionGrabbing = event->pos();
moveView(dxy);
}
//I update the statusbar here because if the user does a cvWaitkey(0) (like with inpaint.cpp)
@@ -1553,8 +1617,6 @@ void ViewPort::resizeEvent ( QResizeEvent *event)
image2Draw_qt_resized = image2Draw_qt.scaled(this->width(),this->height(),Qt::IgnoreAspectRatio,Qt::SmoothTransformation);
controlImagePosition();
//ratioX=float(image2Draw_ipl->width)/float(width());
//ratioY=float(image2Draw_ipl->height)/float(height());
ratioX=width()/float(image2Draw_ipl->width);
ratioY=height()/float(image2Draw_ipl->height);
@@ -1590,11 +1652,16 @@ void ViewPort::paintEvent(QPaintEvent* event)
draw2D(&myPainter);
#if defined(OPENCV_GL)
if ( mode_display == CV_MODE_OPENGL && on_openGL)
if ( mode_display == CV_MODE_OPENGL && on_openGL_draw3D)
{
myPainter.beginNativePainting();
setGL(width(),height());
draw3D();
on_openGL_draw3D(on_openGL_param);
//draw3D();
unsetGL();
myPainter.endNativePainting();
}
#endif
@@ -1841,8 +1908,8 @@ void ViewPort::draw3D()
//draw scene here
glLoadIdentity();
glTranslated(0.0, 0.0, -1.0);
// QVector3D p = convert(positionMouse);
glTranslated(10.0, 10.0, -1.0);
// QVector3D p = convert(mouseCoordinate);
//glTranslated(p.x(),p.y(),p.z());
glRotatef( 55, 1, 0, 0 );
@@ -1859,12 +1926,12 @@ void ViewPort::draw3D()
};
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();
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