showfile.cpp

linux下KDE编写的程序

/* showfile.cpp */
#include <kapp.h>
#include <qpushbutton.h>
#include <qlayout.h>
#include <qfiledialog.h>
#include "showfile.h"
#include "myicons.h"

int main(int argc,char **argv)
{
    KApplication app(argc,argv,"showfile");
    QFileIconProvider *provider = new MyIcons();
    QFileDialog::setIconProvider(provider);
    ShowFile showfile;
    showfile.show();
    app.setMainWidget(&showfile);
    return(app.exec());
}
ShowFile::ShowFile(QWidget *parent,const char *name)
        : QWidget(parent,name)
{
    QPushButton *button;
    QVBoxLayout *box = new QVBoxLayout(this,0,3);

    filelabel = new QLabel("",this);
    filelabel->setAlignment(Qt::AlignHCenter);
    box->addWidget(filelabel);

    button = new QPushButton("Select File to Open",this);
    box->addWidget(button);
    connect(button,SIGNAL(clicked()),
            this,SLOT(popupOpen()));

    resize(10,10);
    box->activate();
}
void ShowFile::popupOpen()
{
    QString name = QFileDialog::getOpenFileName("",
            NULL,this);
    if(!name.isEmpty()) {
        filename = name;
        filelabel->setText(filename);
    }
}