finddialog.h
/****************************************************************************
**
** File : finddialog.h
**
****************************************************************************/
#ifndef _FINDDIALOG_H_
#define _FINDDIALOG_H_
#include <QDialog>
//类前向声明
class QLabel;
class QLineEdit;
class QCheckBox;
class QPushButton;
class FindDialog: public QDialog
{
Q_OBJECT
public:
FindDialog(QWidget *parent=0);
signals:
void findNext( const QString &str,Qt::CaseSensitivity cs);
void findPrevious( const QString &str,Qt::CaseSensitivity cs);
private slots:
void findClicked(); //处理查找按钮单击事件
void enableFindButton( const QString &text); //开启查找按钮
private:
QLabel *label;
QLineEdit *lineEdit;
QCheckBox *caseCheckBox;
QCheckBox *backwardCheckBox;
QPushButton *findButton;
QPushButton *closeButton;
};
#endif // !_FINDDIALOG_H_
**
** File : finddialog.h
**
****************************************************************************/
#ifndef _FINDDIALOG_H_
#define _FINDDIALOG_H_
#include <QDialog>
//类前向声明
class QLabel;
class QLineEdit;
class QCheckBox;
class QPushButton;
class FindDialog: public QDialog
{
Q_OBJECT
public:
FindDialog(QWidget *parent=0);
signals:
void findNext( const QString &str,Qt::CaseSensitivity cs);
void findPrevious( const QString &str,Qt::CaseSensitivity cs);
private slots:
void findClicked(); //处理查找按钮单击事件
void enableFindButton( const QString &text); //开启查找按钮
private:
QLabel *label;
QLineEdit *lineEdit;
QCheckBox *caseCheckBox;
QCheckBox *backwardCheckBox;
QPushButton *findButton;
QPushButton *closeButton;
};
#endif // !_FINDDIALOG_H_
finddialog.cpp:
/****************************************************************************
**
** File : finddialog.cpp
**
****************************************************************************/
#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 &backward"));
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(closeButton,SIGNAL(clicked()), this,SLOT(close()));
connect(findButton,SIGNAL(clicked()), this,SLOT(findClicked()));
QHBoxLayout *leftTopLayout= new QHBoxLayout;
leftTopLayout->addWidget(label);
leftTopLayout->addWidget(lineEdit);
QVBoxLayout *leftLayout= new QVBoxLayout;
leftLayout->addLayout(leftTopLayout);
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 Dialog"));
setFixedHeight(sizeHint().height());
}
void FindDialog::enableFindButton( const QString &text)
{
findButton->setEnabled(!text.isEmpty());
}
void FindDialog::findClicked()
{
QString text=lineEdit->text();
Qt::CaseSensitivity cs=caseCheckBox->isChecked()?Qt::CaseSensitive:Qt::CaseInsensitive;
if(backwardCheckBox->isChecked())
{
emit findPrevious(text,cs); //emit 发射信号
} else{
emit findNext(text,cs);
}
}
**
** File : finddialog.cpp
**
****************************************************************************/
#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 &backward"));
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(closeButton,SIGNAL(clicked()), this,SLOT(close()));
connect(findButton,SIGNAL(clicked()), this,SLOT(findClicked()));
QHBoxLayout *leftTopLayout= new QHBoxLayout;
leftTopLayout->addWidget(label);
leftTopLayout->addWidget(lineEdit);
QVBoxLayout *leftLayout= new QVBoxLayout;
leftLayout->addLayout(leftTopLayout);
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 Dialog"));
setFixedHeight(sizeHint().height());
}
void FindDialog::enableFindButton( const QString &text)
{
findButton->setEnabled(!text.isEmpty());
}
void FindDialog::findClicked()
{
QString text=lineEdit->text();
Qt::CaseSensitivity cs=caseCheckBox->isChecked()?Qt::CaseSensitive:Qt::CaseInsensitive;
if(backwardCheckBox->isChecked())
{
emit findPrevious(text,cs); //emit 发射信号
} else{
emit findNext(text,cs);
}
}
主文件测试findmain.cpp
#include <QApplication>
#include "finddialog.h"
int main( int argc, char* argv[])
{
QApplication app(argc,argv);
FindDialog *findDlg= new FindDialog;
findDlg->show();
return app.exec();
}
#include "finddialog.h"
int main( int argc, char* argv[])
{
QApplication app(argc,argv);
FindDialog *findDlg= new FindDialog;
findDlg->show();
return app.exec();
}
截图:
本文转自 xcf007 51CTO博客,原文链接:http://blog.51cto.com/xcf007/108338,如需转载请自行联系原作者