diff --git a/modules/highgui/include/opencv2/highgui/highgui.hpp b/modules/highgui/include/opencv2/highgui/highgui.hpp
index 1fda661ab3c91825573728017eda38f4341565ba..9168df86684454277d63ba14649c44a99a47e48a 100644
--- a/modules/highgui/include/opencv2/highgui/highgui.hpp
+++ b/modules/highgui/include/opencv2/highgui/highgui.hpp
@@ -66,6 +66,7 @@ CV_EXPORTS double getWindowProperty(const string& winname, int prop_id);//YV
//Only for QT
CV_EXPORTS void displayOverlay(const string& winname, const string& text, int delayms);
+CV_EXPORTS void displayStatusBar(const string& winname, const string& text, int delayms);
CV_EXPORTS int startLoop(int (*pt2Func)(int argc, char *argv[]), int argc, char* argv[]);
CV_EXPORTS void stopLoop();
diff --git a/modules/highgui/include/opencv2/highgui/highgui_c.h b/modules/highgui/include/opencv2/highgui/highgui_c.h
index 8733e819053f02d9922f69df5ccac7ad70d583b9..4655d16adea3fca6e6a4c78b96239d929a010ba6 100644
--- a/modules/highgui/include/opencv2/highgui/highgui_c.h
+++ b/modules/highgui/include/opencv2/highgui/highgui_c.h
@@ -59,6 +59,7 @@ extern "C" {
//YV
//-----------New for QT
CVAPI(void) cvDisplayOverlay(const char* name, const char* text, int delayms);
+CVAPI(void) cvDisplayStatusBar(const char* name, const char* text, int delayms);
CVAPI(int) cvStartLoop(int (*pt2Func)(int argc, char *argv[]), int argc, char* argv[]);
CVAPI(void) cvStopLoop();
//----------------------
diff --git a/modules/highgui/src/window.cpp b/modules/highgui/src/window.cpp
index 2ed010597543c62137e243062e172f8c20282c56..8f1d7deddf3b08b19f719b031717a7a528b09b6f 100644
--- a/modules/highgui/src/window.cpp
+++ b/modules/highgui/src/window.cpp
@@ -175,6 +175,11 @@ int startWindowThread()
}
#if defined (HAVE_QT)
+void displayStatusBar(const string& name, const string& text, int delayms)
+{
+ cvDisplayStatusBar(name.c_str(),text.c_str(), delayms);
+}
+
void displayOverlay(const string& name, const string& text, int delayms)
{
cvDisplayOverlay(name.c_str(),text.c_str(), delayms);
diff --git a/modules/highgui/src/window_QT.cpp b/modules/highgui/src/window_QT.cpp
index 9bea29e7174717104c17911ff2c1a3ce5fb7b09f..4fcb77936ae1338b36eba31a077f2d556e1e1510 100755
--- a/modules/highgui/src/window_QT.cpp
+++ b/modules/highgui/src/window_QT.cpp
@@ -109,6 +109,18 @@ CV_IMPL void cvDisplayOverlay(const char* name, const char* text, 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** )
{
@@ -223,9 +235,10 @@ CvTrackbar* icvFindTrackbarByName( const char* name_trackbar, const char* name_w
QString nameQt = QString(name_trackbar);
QPointer<CvTrackbar> t;
- //for now, only trackbar are added so the Mutable cast is ok.
- for (int i = 0; i < w->layout->layout()->count()-1; ++i)
+ //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)
{
@@ -534,6 +547,14 @@ void GuiReceiver::displayInfo( QString name, QString text, int delayms )
w->displayInfo(text,delayms);
}
+void GuiReceiver::displayStatusBar( QString name, QString text, int delayms )
+{
+ QPointer<CvWindow> w = icvFindWindowByName( name.toLatin1().data() );
+
+ if (w && delayms > 0)
+ w->displayStatusBar(text,delayms);
+}
+
void GuiReceiver::showImage(QString name, void* arr)
{
//qDebug()<<"inshowimage"<<endl;
@@ -721,6 +742,21 @@ CvTrackbar::~CvTrackbar()
delete label;
}
+CustomLayout::CustomLayout()
+{
+
+}
+
+int CustomLayout::heightForWidth ( int w ) const
+{
+ return w/2;
+
+}
+bool CustomLayout::hasHeightForWidth () const
+{
+ return true;
+}
+
CvWindow::CvWindow(QString arg, int arg2)
{
moveToThread(qApp->instance()->thread());
@@ -735,7 +771,7 @@ CvWindow::CvWindow(QString arg, int arg2)
resize(400,300);
//CV_MODE_NORMAL or CV_MODE_OPENGL
- myview = new ViewPort(this, CV_MODE_NORMAL);
+ myview = new ViewPort(this, CV_MODE_NORMAL,false);//parent, mode_display, keep_aspect_ratio
myview->setAlignment(Qt::AlignHCenter);
@@ -755,17 +791,30 @@ CvWindow::CvWindow(QString arg, int arg2)
QObject::connect(shortcutDown, SIGNAL( activated ()),myview, SLOT( siftWindowOnDown() ));
layout = new QBoxLayout(QBoxLayout::TopToBottom);
- layout->setSpacing(5);
+ //layout = new CustomLayout;
layout->setObjectName(QString::fromUtf8("boxLayout"));
layout->setContentsMargins(0, 0, 0, 0);
+ layout->setSpacing(0);
layout->setMargin(0);
- layout->addWidget(myview);
+ layout->addWidget(myview,Qt::AlignCenter);
if (flags == CV_WINDOW_AUTOSIZE)
layout->setSizeConstraint(QLayout::SetFixedSize);
- setLayout(layout);
+ //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();
}
@@ -780,7 +829,10 @@ CvWindow::~CvWindow()
delete layout;
}
-
+
+ delete myBar;
+ delete myBar_msg;
+
delete shortcutZ;
delete shortcutPlus;
@@ -796,6 +848,11 @@ 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);
@@ -810,7 +867,7 @@ void CvWindow::addSlider(QString name, int* value, int count,CvTrackbarCallback
{
QPointer<CvTrackbar> t = new CvTrackbar(this,name,value, count, on_change);
t->setAlignment(Qt::AlignHCenter);
- layout->insertLayout(layout->count()-1,t);
+ layout->insertLayout(layout->count()-1,t);//max-1 means add trackbar between myview and statusbar
}
//Need more test here !
@@ -864,10 +921,15 @@ void CvWindow::writeSettings()//not tested
}
//Here is ViewPort
-ViewPort::ViewPort(QWidget* arg, int arg2)
+ViewPort::ViewPort(CvWindow* arg, int arg2, bool arg3)
{
- mode = arg2;
centralWidget = arg,
+ mode = arg2;
+ keepRatio = arg3;
+
+ modeRatio = Qt::IgnoreAspectRatio;
+ if (keepRatio)
+ modeRatio = Qt::KeepAspectRatio;
setupViewport(centralWidget);
setContentsMargins(0,0,0,0);
@@ -880,7 +942,8 @@ ViewPort::ViewPort(QWidget* arg, int arg2)
positionGrabbing = QPointF(0,0);
positionCorners = QRect(0,0,size().width(),size().height());
on_mouse = NULL;
-
+ deltaOffset = QPoint(0,0);
+ mouseCoordinate = QPoint(-1,-1);
#if defined(OPENCV_GL)
@@ -891,23 +954,25 @@ ViewPort::ViewPort(QWidget* arg, int arg2)
}
#endif
- image2Draw=cvCreateImage(cvSize(centralWidget->width(),centralWidget->height()),IPL_DEPTH_8U,3);
- cvZero(image2Draw);
+ 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)
- cvReleaseImage(&image2Draw);
+ if (image2Draw_ipl)
+ cvReleaseImage(&image2Draw_ipl);
delete timerDisplay;
}
void ViewPort::resetZoom()
{
- matrixWorld.reset();
- controlImagePosition();
+ matrixWorld.reset();
+ controlImagePosition();
}
void ViewPort::ZoomIn()
@@ -920,7 +985,6 @@ void ViewPort::ZoomOut()
scaleView( -0.5,QPointF(size().width()/2,size().height()/2));
}
-
//Note: move 2 percent of the window
void ViewPort::siftWindowOnLeft()
{
@@ -977,21 +1041,24 @@ void ViewPort::updateImage(void* arr)
IplImage* tempImage = (IplImage*)arr;
- if (!isSameSize(image2Draw,tempImage))
+ if (!isSameSize(image2Draw_ipl,tempImage))
{
- cvReleaseImage(&image2Draw);
- image2Draw=cvCreateImage(cvGetSize(tempImage),IPL_DEPTH_8U,3);
+ 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());
+ //centralWidget->myBar_msg->setMaximumWidth(width());
updateGeometry();
}
- cvConvertImage(tempImage,image2Draw,CV_CVTIMG_SWAP_RB );
+ cvConvertImage(tempImage,image2Draw_ipl,CV_CVTIMG_SWAP_RB );
+
viewport()->update();
}
void ViewPort::setMouseCallBack(CvMouseCallback m, void* param)
{
- setMouseTracking (true);//receive mouse event everytime
on_mouse = m;
on_mouse_param = param;
}
@@ -1000,8 +1067,9 @@ 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);
@@ -1012,7 +1080,7 @@ void ViewPort::controlImagePosition()
matrixWorld.translate(0,-top);
top = 0;
}
- positionCorners.setTopLeft(QPoint(left,top));
+ //-------
QSize sizeImage = size();
matrixWorld.map(sizeImage.width(),sizeImage.height(),&right,&bottom);
@@ -1026,12 +1094,29 @@ void ViewPort::controlImagePosition()
matrixWorld.translate(0,sizeImage.height()-bottom);
bottom = sizeImage.height();
}
- positionCorners.setBottomRight(QPoint(right,bottom));
+ /*
+ if (keepRatio)
+ {
+ cout<<"here"<<endl;
+ QSize t1(image2Draw_ipl->width, image2Draw_ipl->height);
+ QSize delta(width(),height());
+ t1.scale(delta.width(), delta.height(), Qt::KeepAspectRatio);
+ delta = (delta - t1)/2;
+ //left += delta.width();
+ //right += delta.width();
+ //top += delta.height();
+ //bottom += delta.height();
+ matrixWorld.translate(delta.width(),delta.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();
}
@@ -1062,6 +1147,9 @@ void ViewPort::scaleView(qreal factor,QPointF center)
controlImagePosition();
+ //display new zoom
+ centralWidget->displayStatusBar(tr("Zoom: %1%").arg(matrixWorld.m11()*100),1000);
+
if (matrixWorld.m11()>1)
setCursor(Qt::OpenHandCursor);
else
@@ -1076,7 +1164,7 @@ void ViewPort::wheelEvent(QWheelEvent *event)
void ViewPort::mousePressEvent(QMouseEvent *event)
{
int cv_event = -1, flags = 0;
- QPoint pt = event->pos();
+ QPoint pt = event->pos()+deltaOffset;
switch(event->modifiers())
@@ -1116,15 +1204,13 @@ void ViewPort::mousePressEvent(QMouseEvent *event)
default:;
}
- if (on_mouse)
- {
- int a, b;
- matrixWorld_inv.map(pt.x(),pt.y(),&a,&b);
- a*=float(image2Draw->width)/float(width());
- b*=float(image2Draw->height)/float(height());
- on_mouse( cv_event, a, b, flags, on_mouse_param );
- }
+ //to convert mouse coordinate
+ matrixWorld_inv.map(pt.x(),pt.y(),&mouseCoordinate.rx(),&mouseCoordinate.ry());
+ mouseCoordinate.rx()*=ratioX;
+ mouseCoordinate.ry()*=ratioY;
+ if (on_mouse)
+ on_mouse( cv_event, mouseCoordinate.x(),mouseCoordinate.y(), flags, on_mouse_param );
if (matrixWorld.m11()>1)
{
@@ -1139,7 +1225,7 @@ void ViewPort::mouseReleaseEvent(QMouseEvent *event)
{
int cv_event = -1, flags = 0;
- QPoint pt = event->pos();
+ QPoint pt = event->pos()+deltaOffset;
switch(event->modifiers())
@@ -1179,14 +1265,13 @@ void ViewPort::mouseReleaseEvent(QMouseEvent *event)
default:;
}
+ //to convert mouse coordinate
+ matrixWorld_inv.map(pt.x(),pt.y(),&mouseCoordinate.rx(),&mouseCoordinate.ry());
+ mouseCoordinate.rx()*=ratioX;
+ mouseCoordinate.ry()*=ratioY;
if (on_mouse)
- {
- int a, b;
- matrixWorld_inv.map(pt.x(),pt.y(),&a,&b);
- a*=float(image2Draw->width)/float(width());
- b*=float(image2Draw->height)/float(height());
- on_mouse( cv_event, a, b, flags, on_mouse_param );
- }
+ on_mouse( cv_event, mouseCoordinate.x(),mouseCoordinate.y(), flags, on_mouse_param );
+
if (matrixWorld.m11()>1)
setCursor(Qt::OpenHandCursor);
@@ -1197,7 +1282,7 @@ void ViewPort::mouseReleaseEvent(QMouseEvent *event)
void ViewPort::mouseDoubleClickEvent(QMouseEvent *event)
{
int cv_event = -1, flags = 0;
- QPoint pt = event->pos();
+ QPoint pt = event->pos()+deltaOffset;
switch(event->modifiers())
{
@@ -1236,22 +1321,21 @@ void ViewPort::mouseDoubleClickEvent(QMouseEvent *event)
default:;
}
+ //to convert mouse coordinate
+ matrixWorld_inv.map(pt.x(),pt.y(),&mouseCoordinate.rx(),&mouseCoordinate.ry());
+ mouseCoordinate.rx()*=ratioX;
+ mouseCoordinate.ry()*=ratioY;
if (on_mouse)
- {
- int a, b;
- matrixWorld_inv.map(pt.x(),pt.y(),&a,&b);
- a*=float(image2Draw->width)/float(width());
- b*=float(image2Draw->height)/float(height());
- on_mouse( cv_event, a, b, flags, on_mouse_param );
- }
+ on_mouse( cv_event, mouseCoordinate.x(),mouseCoordinate.y(), flags, on_mouse_param );
+
QWidget::mouseDoubleClickEvent(event);
}
+
void ViewPort::mouseMoveEvent(QMouseEvent *event)
{
int cv_event = -1, flags = 0;
- QPoint pt = event->pos();
-
+ QPoint pt = event->pos()-deltaOffset;
switch(event->modifiers())
{
@@ -1288,14 +1372,14 @@ void ViewPort::mouseMoveEvent(QMouseEvent *event)
default:;
}
+ //to convert mouse coordinate
+ matrixWorld_inv.map(pt.x(),pt.y(),&mouseCoordinate.rx(),&mouseCoordinate.ry());
+ mouseCoordinate.rx()*=ratioX;
+ mouseCoordinate.ry()*=ratioY;
+
if (on_mouse)
- {
- int a, b;
- matrixWorld_inv.map(pt.x(),pt.y(),&a,&b);
- a*=float(image2Draw->width)/float(width());
- b*=float(image2Draw->height)/float(height());
- on_mouse( cv_event, a, b, flags, on_mouse_param );
- }
+ on_mouse( cv_event, mouseCoordinate.x(),mouseCoordinate.y(), flags, on_mouse_param );
+
if (matrixWorld.m11()>1 && event->buttons() == Qt::LeftButton)
@@ -1306,24 +1390,40 @@ void ViewPort::mouseMoveEvent(QMouseEvent *event)
moveView(dxy);
}
+
+ //I update the statusbar here because if the user does a cvWaitkey(0) (like with inpaint.cpp)
+ //the status bar will be repaint only when a click occurs.
+ viewport()->update();
QWidget::mouseMoveEvent(event);
}
-
QSize ViewPort::sizeHint() const
{
- if(image2Draw)
+ //return QSize(width(),width()/2);
+ if(image2Draw_ipl)
{
- return QSize(image2Draw->width,image2Draw->height);
+ return QSize(image2Draw_ipl->width,image2Draw_ipl->height);
} else {
return QGraphicsView::sizeHint();
}
}
+QPoint ViewPort::computeOffset()
+{
+ QSizeF t1(image2Draw_ipl->width, image2Draw_ipl->height);
+ QSizeF t2(width(),height());
+ t1.scale(t2.width(), t2.height(), Qt::KeepAspectRatio);
+ t2 = (t2 - t1)/2.0;
+ return QPoint(t2.width(),t2.height());
+}
+
void ViewPort::resizeEvent ( QResizeEvent *event)
{
controlImagePosition();
+ ratioX=float(image2Draw_ipl->width)/float(width());
+ ratioY=float(image2Draw_ipl->height)/float(height());
+
return QGraphicsView::resizeEvent(event);
}
@@ -1354,6 +1454,13 @@ void ViewPort::paintEvent(QPaintEvent* event)
drawOverview(&myPainter);
}
+ //for statusbar
+ if (mouseCoordinate.x()>=0 && mouseCoordinate.y()>=0 &&
+ mouseCoordinate.x()<image2Draw_ipl->width && mouseCoordinate.y()<image2Draw_ipl->height)
+ {
+ drawStatusBar();
+ }
+
//for information overlay
if (drawInfo)
{
@@ -1366,8 +1473,21 @@ void ViewPort::paintEvent(QPaintEvent* event)
void ViewPort::draw2D(QPainter *painter)
{
- QImage image((uchar*) image2Draw->imageData, image2Draw->width, image2Draw->height,QImage::Format_RGB888);
- painter->drawImage(0,0,image.scaled(this->width(),this->height(),Qt::IgnoreAspectRatio,Qt::SmoothTransformation));
+ image2Draw_qt = QImage((uchar*) image2Draw_ipl->imageData, image2Draw_ipl->width, image2Draw_ipl->height,QImage::Format_RGB888);
+ painter->drawImage(deltaOffset.x(),deltaOffset.y(),image2Draw_qt.scaled(this->width(),this->height(),modeRatio,Qt::SmoothTransformation));
+}
+
+void ViewPort::drawStatusBar()
+{
+ //CvScalar value = cvGet2D(image2Draw_ipl,mouseCoordinate.y(),mouseCoordinate.x());
+ QRgb rgbValue = image2Draw_qt.pixel(mouseCoordinate);
+ centralWidget->myBar_msg->setText(tr("<font color='black'>Coordinate: %1x%2 ~ </font>")
+ .arg(mouseCoordinate.x())
+ .arg(mouseCoordinate.y())+
+ tr("<font color='red'>R:%3 </font>").arg(qRed(rgbValue))+//.arg(value.val[0])+
+ tr("<font color='green'>G:%4 </font>").arg(qGreen(rgbValue))+//.arg(value.val[1])+
+ tr("<font color='blue'>B:%5</font>").arg(qBlue(rgbValue))//.arg(value.val[2])
+ );
}
void ViewPort::drawOverview(QPainter *painter)
diff --git a/modules/highgui/src/window_QT.h b/modules/highgui/src/window_QT.h
index d52f4ceeaaf3b8f3a82af093989a7267aeac0d26..94fa31443492769ecd9389f23482d88589b31d4d 100644
--- a/modules/highgui/src/window_QT.h
+++ b/modules/highgui/src/window_QT.h
@@ -66,6 +66,7 @@
#include <QLabel>
#include <QIODevice>
#include <QShortcut>
+#include <QStatusBar>
//Macro here
#define CV_MODE_NORMAL 0
@@ -97,6 +98,7 @@ public slots:
void resizeWindow(QString name, int width, int height);
void showImage(QString name, void* arr);
void displayInfo( QString name, QString text, int delayms );
+ void displayStatusBar( QString name, QString text, int delayms );
void refreshEvents();
void timeOut();
void toggleFullScreen(QString name, double flags );
@@ -129,6 +131,15 @@ private:
int* dataSlider;
};
+class CustomLayout : public QVBoxLayout
+{
+ Q_OBJECT
+ public:
+ CustomLayout();
+ int heightForWidth ( int w ) const;
+ bool hasHeightForWidth () const;
+};
+
class CvWindow : public QWidget
{
Q_OBJECT
@@ -139,10 +150,14 @@ public:
void setMouseCallBack(CvMouseCallback m, void* param);
void updateImage(void* arr);
void displayInfo(QString text, int delayms );
+ void displayStatusBar(QString text, int delayms );
- QPointer<QBoxLayout> layout;
QString name;
int flags;
+ QPointer<QBoxLayout> layout;
+ QPointer<QStatusBar> myBar;
+ QPointer<QLabel> myBar_msg;
+ //QPointer<CustomLayout> layout;
protected:
void readSettings();
@@ -169,12 +184,15 @@ class ViewPort : public QGraphicsView
{
Q_OBJECT
public:
- ViewPort(QWidget* centralWidget, int mode = CV_MODE_NORMAL);
+ ViewPort(CvWindow* centralWidget, int mode = CV_MODE_NORMAL, bool keepRatio = true);
~ViewPort();
void updateImage(void* arr);
void startDisplayInfo(QString text, int delayms);
void setMouseCallBack(CvMouseCallback m, void* param);
+ IplImage* image2Draw_ipl;
+ QImage image2Draw_qt;
+
public slots:
//reference:
//http://www.qtcentre.org/wiki/index.php?title=QGraphicsView:_Smooth_Panning_and_Zooming
@@ -191,22 +209,25 @@ public slots:
void resizeEvent ( QResizeEvent * );
private:
- QGraphicsScene *myScene;
-
+ Qt::AspectRatioMode modeRatio;
+ QPoint deltaOffset;
+ QPoint computeOffset();
+ QPoint mouseCoordinate;
QPointF positionGrabbing;
QRect positionCorners;
QTransform matrixWorld;
QTransform matrixWorld_inv;
+ float ratioX, ratioY;
CvMouseCallback on_mouse;
void* on_mouse_param;
int mode;
- IplImage* image2Draw;
+ bool keepRatio;
bool isSameSize(IplImage* img1,IplImage* img2);
QSize sizeHint() const;
- QPointer<QWidget> centralWidget;
+ QPointer<CvWindow> centralWidget;
QPointer<QTimer> timerDisplay;
bool drawInfo;
QString infoText;
@@ -221,6 +242,7 @@ private:
void drawInstructions(QPainter *painter);
void drawOverview(QPainter *painter);
void draw2D(QPainter *painter);
+ void drawStatusBar();
void controlImagePosition();
#if defined(OPENCV_GL)