Chiebot-Mirror
/
opencv
8
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

New functions with QT GUI

Browse Source 
Shortcut for zoom (CTRL + and CTRL - for zoomin/out, CTRL Left/Right/Up/Down for panning, CTRL P for zoom = 1)
Fix bug with key event
pull/13383/head
Yannick Verdie 15 years ago
parent 65f3b09d31
commit 5cbe64dac7
2 changed files with 198 additions and 89 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 136
      modules/highgui/src/window_QT.cpp
  2. 151
      modules/highgui/src/window_QT.h

136
modules/highgui/src/window_QT.cpp
Unescape View File

@ -630,7 +630,6 @@ int GuiReceiver::start()
CvTrackbar::CvTrackbar(CvWindow* arg, QString name, int* value, int count, CvTrackbarCallback on_change )
{
//moveToThread(qApp->instance()->thread());
setObjectName(trackbar_name);
parent = arg;
trackbar_name = name;
@ -638,7 +637,6 @@ CvTrackbar::CvTrackbar(CvWindow* arg, QString name, int* value, int count, CvTra
callback = on_change;
slider = new QSlider(Qt::Horizontal);
//slider->setObjectName(trackbar_name);
slider->setFocusPolicy(Qt::StrongFocus);
slider->setMinimum(0);
slider->setMaximum(count);
@ -742,10 +740,27 @@ CvWindow::CvWindow(QString arg, int arg2)
myview = new ViewPort(this, CV_MODE_NORMAL);
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->setSpacing(5);
layout->setObjectName(QString::fromUtf8("boxLayout"));
layout->setContentsMargins(0, 0, 0, 0);
layout->setMargin(0);
layout->addWidget(myview);
if (flags == CV_WINDOW_AUTOSIZE)
@ -792,12 +807,37 @@ void CvWindow::addSlider(QString name, int* value, int count,CvTrackbarCallback
layout->insertLayout(layout->count()-1,t);
}
//Need more test here !
void CvWindow::keyPressEvent(QKeyEvent *event)
{
mutexKey.lock();
last_key = (int)event->text().toLocal8Bit().at(0);
mutexKey.unlock();
key_pressed.wakeAll();
//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, plus +, and plus - are used for zoom 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);
}
@ -823,8 +863,10 @@ ViewPort::ViewPort(QWidget* arg, int arg2)
{
mode = arg2;
centralWidget = arg,
setupViewport(centralWidget);
setUpdatesEnabled(true);
setContentsMargins(0,0,0,0);
setObjectName(QString::fromUtf8("graphicsView"));
timerDisplay = new QTimer(this);
timerDisplay->setSingleShot(true);
@ -833,21 +875,20 @@ ViewPort::ViewPort(QWidget* arg, int arg2)
positionGrabbing = QPointF(0,0);
positionCorners = QRect(0,0,size().width(),size().height());
#if defined(OPENCV_GL)
if (mode == CV_MODE_OPENGL)
{
#if defined(OPENCV_GL)
setViewport(new QGLWidget(QGLFormat(QGL::SampleBuffers)));
initGL();
#endif
}
#endif
image2Draw=cvCreateImage(cvSize(centralWidget->width(),centralWidget->height()),IPL_DEPTH_8U,3);
cvZero(image2Draw);
setSceneRect(0,0,size().width(),size().height());
this->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
this->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
this->setInteractive(false);
setInteractive(false);
}
ViewPort::~ViewPort()
@ -858,6 +899,51 @@ ViewPort::~ViewPort()
delete timerDisplay;
}
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())
@ -939,8 +1025,18 @@ void ViewPort::controlImagePosition()
//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
@ -965,8 +1061,6 @@ void ViewPort::scaleView(qreal factor,QPointF center)
setCursor(Qt::OpenHandCursor);
else
unsetCursor();
viewport()->update();
}
void ViewPort::wheelEvent(QWheelEvent *event)
@ -1184,8 +1278,7 @@ void ViewPort::mouseMoveEvent(QMouseEvent *event)
positionGrabbing = event->pos();
matrixWorld.translate(dxy.x(),dxy.y());
controlImagePosition();
moveView(dxy);
}
QWidget::mouseMoveEvent(event);
@ -1204,8 +1297,8 @@ QSize ViewPort::sizeHint() const
void ViewPort::resizeEvent ( QResizeEvent *event)
{
controlImagePosition();
return QGraphicsView::resizeEvent(event);
controlImagePosition();
return QGraphicsView::resizeEvent(event);
}
@ -1258,7 +1351,7 @@ void ViewPort::drawOverview(QPainter *painter)
const int margin = 5;
painter->setBrush(QBrush ( QColor(0, 0, 0, 127)));
painter->setBrush(QColor(0, 0, 0, 127));
painter->setPen(Qt::darkGreen);
painter->drawRect(QRect(width()-viewSize.width()-margin, 0,viewSize.width(),viewSize.height()));
@ -1266,7 +1359,6 @@ void ViewPort::drawOverview(QPainter *painter)
qreal ratioSize = 1/matrixWorld.m11();
qreal ratioWindow = (qreal)(viewSize.height())/(qreal)(size().height());
painter->setBrush(QColor(0, 0, 0, 127));
painter->setPen(Qt::darkBlue);
painter->drawRect(QRectF(width()-viewSize.width()-positionCorners.left()*ratioSize*ratioWindow-margin,
-positionCorners.top()*ratioSize*ratioWindow,

151
modules/highgui/src/window_QT.h
Unescape View File

@ -65,6 +65,7 @@
#include <QSlider>
#include <QLabel>
#include <QIODevice>
#include <QShortcut>
//Macro here
#define CV_MODE_NORMAL 0
@ -83,7 +84,7 @@ public:
GuiReceiver();
int start();
bool _bTimeOut;
private:
@ -124,7 +125,7 @@ private:
QString createLabel();
QPointer<QPushButton > label;
CvTrackbarCallback callback;
CvWindow* parent;
QPointer<CvWindow> parent;
int* dataSlider;
};
@ -151,9 +152,15 @@ protected:
private:
QPointer<ViewPort> myview;
int status;//0 normal, 1 fullscreen (YV)
int status;//0 normal, 1 fullscreen (YV)
QPointer<QShortcut> shortcutZ;
QPointer<QShortcut> shortcutPlus;
QPointer<QShortcut> shortcutMinus;
QPointer<QShortcut> shortcutLeft;
QPointer<QShortcut> shortcutRight;
QPointer<QShortcut> shortcutUp;
QPointer<QShortcut> shortcutDown;
};
@ -166,30 +173,41 @@ public:
~ViewPort();
void updateImage(void* arr);
void startDisplayInfo(QString text, int delayms);
void setMouseCallBack(CvMouseCallback m, void* param);
void setMouseCallBack(CvMouseCallback m, void* param);
public slots:
//reference:
//http://www.qtcentre.org/wiki/index.php?title=QGraphicsView:_Smooth_Panning_and_Zooming
//http://doc.qt.nokia.com/4.6/gestures-imagegestures-imagewidget-cpp.html
void scaleView(qreal scaleFactor, QPointF center);
void moveView(QPointF delta);
void resetZoom();
void ZoomIn();
void ZoomOut();
void siftWindowOnLeft();
void siftWindowOnRight();
void siftWindowOnUp() ;
void siftWindowOnDown();
void resizeEvent ( QResizeEvent * );
private:
QGraphicsScene *myScene;
QPointF positionGrabbing;
QRect positionCorners;
QTransform matrixWorld;
QTransform matrixWorld_inv;
CvMouseCallback on_mouse;
CvMouseCallback on_mouse;
void* on_mouse_param;
int mode;
IplImage* image2Draw;
bool isSameSize(IplImage* img1,IplImage* img2);
QSize sizeHint() const;
QWidget* centralWidget;
QTimer* timerDisplay;
QPointer<QWidget> centralWidget;
QPointer<QTimer> timerDisplay;
bool drawInfo;
QString infoText;
//QImage* image;
@ -201,10 +219,9 @@ private:
void mouseReleaseEvent(QMouseEvent *event);
void mouseDoubleClickEvent(QMouseEvent *event);
void drawInstructions(QPainter *painter);
void drawOverview(QPainter *painter);
void draw2D(QPainter *painter);
void controlImagePosition();
void drawOverview(QPainter *painter);
#if defined(OPENCV_GL)
void draw3D();
@ -221,61 +238,61 @@ private slots:
//here css for trackbar
/* from http://thesmithfam.org/blog/2010/03/10/fancy-qslider-stylesheet */
static const QString str_Trackbar_css = QString("")
+ "QSlider::groove:horizontal {"
+ "border: 1px solid #bbb;"
+ "background: white;"
+ "height: 10px;"
+ "border-radius: 4px;"
+ "}"
+ "QSlider::sub-page:horizontal {"
+ "background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,"
+ "stop: 0 #66e, stop: 1 #bbf);"
+ "background: qlineargradient(x1: 0, y1: 0.2, x2: 1, y2: 1,"
+ "stop: 0 #bbf, stop: 1 #55f);"
+ "border: 1px solid #777;"
+ "height: 10px;"
+ "border-radius: 4px;"
+ "}"
+ "QSlider::add-page:horizontal {"
+ "background: #fff;"
+ "border: 1px solid #777;"
+ "height: 10px;"
+ "border-radius: 4px;"
+ "}"
+ "QSlider::handle:horizontal {"
+ "background: qlineargradient(x1:0, y1:0, x2:1, y2:1,"
+ "stop:0 #eee, stop:1 #ccc);"
+ "border: 1px solid #777;"
+ "width: 13px;"
+ "margin-top: -2px;"
+ "margin-bottom: -2px;"
+ "border-radius: 4px;"
+ "}"
+ "QSlider::handle:horizontal:hover {"
+ "background: qlineargradient(x1:0, y1:0, x2:1, y2:1,"
+ "stop:0 #fff, stop:1 #ddd);"
+ "border: 1px solid #444;"
+ "border-radius: 4px;"
+ "}"
+ "QSlider::sub-page:horizontal:disabled {"
+ "background: #bbb;"
+ "border-color: #999;"
+ "}"
+ "QSlider::add-page:horizontal:disabled {"
+ "background: #eee;"
+ "border-color: #999;"
+ "}"
+ "QSlider::handle:horizontal:disabled {"
+ "background: #eee;"
+ "border: 1px solid #aaa;"
+ "border-radius: 4px;"
+ "}";
+ "QSlider::groove:horizontal {"
+ "border: 1px solid #bbb;"
+ "background: white;"
+ "height: 10px;"
+ "border-radius: 4px;"
+ "}"
+ "QSlider::sub-page:horizontal {"
+ "background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,"
+ "stop: 0 #66e, stop: 1 #bbf);"
+ "background: qlineargradient(x1: 0, y1: 0.2, x2: 1, y2: 1,"
+ "stop: 0 #bbf, stop: 1 #55f);"
+ "border: 1px solid #777;"
+ "height: 10px;"
+ "border-radius: 4px;"
+ "}"
+ "QSlider::add-page:horizontal {"
+ "background: #fff;"
+ "border: 1px solid #777;"
+ "height: 10px;"
+ "border-radius: 4px;"
+ "}"
+ "QSlider::handle:horizontal {"
+ "background: qlineargradient(x1:0, y1:0, x2:1, y2:1,"
+ "stop:0 #eee, stop:1 #ccc);"
+ "border: 1px solid #777;"
+ "width: 13px;"
+ "margin-top: -2px;"
+ "margin-bottom: -2px;"
+ "border-radius: 4px;"
+ "}"
+ "QSlider::handle:horizontal:hover {"
+ "background: qlineargradient(x1:0, y1:0, x2:1, y2:1,"
+ "stop:0 #fff, stop:1 #ddd);"
+ "border: 1px solid #444;"
+ "border-radius: 4px;"
+ "}"
+ "QSlider::sub-page:horizontal:disabled {"
+ "background: #bbb;"
+ "border-color: #999;"
+ "}"
+ "QSlider::add-page:horizontal:disabled {"
+ "background: #eee;"
+ "border-color: #999;"
+ "}"
+ "QSlider::handle:horizontal:disabled {"
+ "background: #eee;"
+ "border: 1px solid #aaa;"
+ "border-radius: 4px;"
+ "}";
#endif

Write Preview
Loading…
Cancel
Save