?? filechooser.cpp
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#include "filechooser.h"#include <qlineedit.h>#include <qpushbutton.h>#include <qfiledialog.h>#include <qlayout.h>FileChooser::FileChooser( QWidget *parent, const char *name ) : QWidget( parent, name ), md( File ){ QHBoxLayout *layout = new QHBoxLayout( this ); layout->setMargin( 0 ); lineEdit = new QLineEdit( this, "filechooser_lineedit" ); layout->addWidget( lineEdit ); connect( lineEdit, SIGNAL( textChanged( const QString & ) ), this, SIGNAL( fileNameChanged( const QString & ) ) ); button = new QPushButton( "...", this, "filechooser_button" ); button->setFixedWidth( button->fontMetrics().width( " ... " ) ); layout->addWidget( button ); connect( button, SIGNAL( clicked() ), this, SLOT( chooseFile() ) ); setFocusProxy( lineEdit );}void FileChooser::setMode( Mode m ){ md = m;}FileChooser::Mode FileChooser::mode() const{ return md;}void FileChooser::setFileName( const QString &fn ){ lineEdit->setText( fn );}QString FileChooser::fileName() const{ return lineEdit->text();}void FileChooser::chooseFile(){ QString fn; if ( mode() == File ) fn = QFileDialog::getOpenFileName( lineEdit->text(), QString::null, this ); else fn = QFileDialog::getExistingDirectory( lineEdit->text(),this ); if ( !fn.isEmpty() ) { lineEdit->setText( fn ); emit fileNameChanged( fn ); }}?? 快捷鍵說明
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