QT Learning Pathway (8): Create a dialog box (next)

Next, here is the source code section:

#include <QtGui>


#include "finddialog.h"





Finddialog::finddialog (qwidget *parent)


: Qdialog (parent)


{


label = new Qlabel (tr ("Find &what:");


lineedit = new Qlineedit;


Label->setbuddy (Lineedit);





Casecheckbox = new Qcheckbox (tr ("Match &case"));


Backwardcheckbox = new Qcheckbox (tr ("Search &backford"));





Findbutton = new Qpushbutton (tr ("&find"));


Findbutton->setdefault (TRUE);


findbutton->setenabled (FALSE);





CloseButton = new Qpushbutton (tr ("close"));





Connect (Lineedit, SIGNAL (textchanged (const qstring&)), this, SLOT (Enablefindbutton (const qstring&)));


Connect (Findbutton, SIGNAL (clicked ()), this, SLOT (findclicked ()));


Connect (CloseButton, SIGNAL (clicked ()), this, SLOT (Close ()));





qhboxlayout *topleftlayout = new Qhboxlayout;


topleftlayout->addwidget (label);


Topleftlayout->addwidget (Lineedit);





qvboxlayout *leftlayout = new Qvboxlayout;


leftlayout->addlayout (topleftlayout);


Leftlayout->addwidget (Casecheckbox);


Leftlayout->addwidget (Backwardcheckbox);





qvboxlayout *rightlayout = new Qvboxlayout;


Rightlayout->addwidget (Findbutton);


Rightlayout->addwidget (CloseButton);


Rightlayout->addstretch ();





qhboxlayout *mainlayout = new Qhboxlayout;


mainlayout->addlayout (leftlayout);


mainlayout->addlayout (rightlayout);


setlayout (mainlayout);





setwindowtitle (tr ("find"));


Setfixedheight (Sizehint (). height ());


}





Finddialog::~finddialog ()


{





}





void finddialog::findclicked ()


{


QString Text = Lineedit->text ();


qt::casesensitivity cs = casecheckbox->ischecked ()? qt::caseinsensitive:qt::casesensitive;


if (backwardcheckbox->ischecked ()) {


emit findprevious (text, CS);


} else {


emit FindNext (text, CS);


}


}





void Finddialog::enablefindbutton (const QString &text)


{


findbutton->setenabled (!text.isempty ());


}