我有一个带有许多按钮的窗口。每个触发一个子程序(使用 Opencv API 编写)。每个子程序在窗口上显示图像和内容。
问题是,当我关闭这些窗口(通过小红叉)时,所有按钮都变得无法点击。所以如果我想启动另一个程序,我将不得不退出主窗口并再次运行它。
换句话说,我希望能够运行所有的子程序,而不必每次都重新开始。
这是 GUI 的代码:
.cpp
#include "fenprincipale.h"
#include "ui_fenprincipale.h"
#include<highgui.h>
#include<cv.h>
#include <moyenetmedian.h>
#include<morpho.h>
#include<tracking.h>
#include<contour.h>
#include<QApplication>
FenPrincipale::FenPrincipale(QWidget *parent) :
QWidget(parent),
ui(new Ui::FenPrincipale)
{
ui->setupUi(this);
MoyenEtMedian *moyenEtMedian = new MoyenEtMedian;
morpho * mor = new morpho;
tracking * tra= new tracking;
contour * cont= new contour;
QObject::connect(ui->bMoyMed, SIGNAL( clicked() ), moyenEtMedian, SLOT( exec() ), Qt::AutoConnection );
QObject::connect(ui->bMorph, SIGNAL( clicked() ), mor, SLOT( exec() ), Qt::AutoConnection );
QObject::connect(ui->bTrack, SIGNAL( clicked() ), tra, SLOT( exec() ), Qt::AutoConnection );
QObject::connect(ui->bCont, SIGNAL( clicked() ), cont, SLOT( exec() ), Qt::AutoConnection );
}
FenPrincipale::~FenPrincipale()
{
delete ui;
}
。H :
#ifndef FENPRINCIPALE_H
#define FENPRINCIPALE_H
#include <QWidget>
#include <QApplication>
namespace Ui {
class FenPrincipale;
}
class FenPrincipale : public QWidget
{
Q_OBJECT
public:
explicit FenPrincipale(QWidget *parent = 0);
void switch_callback(int);
void execMoyMed (void);
~FenPrincipale();
private:
Ui::FenPrincipale *ui;
};
#endif // FENPRINCIPALE_H
主要课程:
#include <QCoreApplication>
#include <QApplication>
#include <QtGui>
#include <QWidget>
#include "fenprincipale.h"
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
FenPrincipale fenetre;
fenetre.show();
return a.exec();
}
“ moyenetmedian ”的插槽实现:
void MoyenEtMedian::exec(void)
{
const char* name = "Filtres";
IplImage* img = cvLoadImage( "C:/Users/XELTINFO/ProjetVision/image.png" );
IplImage* out = cvCreateImage( cvGetSize(img), IPL_DEPTH_8U, 3 );
cvNamedWindow( name, 1 );
cvShowImage(name, out);
// Create trackbar
cvCreateTrackbar2( "Filtre", name, &g_switch_value, 1, &MoyenEtMedian::switch_callback, this );
while( 1 ) {
switch( filterInt ){
case 0:
cvSmooth( img, out, CV_BLUR, 7, 7 );
break;
case 1:
cvSmooth( img, out, CV_MEDIAN, 7, 7 );
break;
}
if(filterInt != lastfilterInt){
cvShowImage(name, out);
lastfilterInt = filterInt;
}
if( cvWaitKey( 15 ) == 27 )
break;
}
cvReleaseImage( &img );
cvReleaseImage( &out );
cvDestroyWindow( name );
}
类声明:
#ifndef MOYENETMEDIAN_H
#define MOYENETMEDIAN_H
#include "ui_fenprincipale.h"
#include<QObject>
class MoyenEtMedian : public QObject
{
Q_OBJECT
public:
MoyenEtMedian();
static void switch_callback(int position, void*);
public slots :
void exec(void);
};
#endif // MOYENETMEDIAN_H
所有类的类声明和插槽实现都非常相似。如果这还不够,我会添加其余的。