C++/Qt/QListWidgetItem — различия между версиями
Admin (обсуждение | вклад) м (1 версия: Импорт контента...) |
Admin (обсуждение | вклад) м (1 версия: Импорт контента...) |
(нет различий)
|
Текущая версия на 13:25, 25 мая 2010
Cloning QListWidgetItem
<source lang="cpp">
- include <QtGui>
int main(int argc, char* argv[]) {
QApplication app(argc, argv); QListWidget listWidget; QListWidgetItem *proto=new QListWidgetItem; proto->setFont(QFont("Times")); proto->setTextColor(Qt::blue); proto->setBackgroundColor(Qt::yellow); QListWidgetItem *name = proto->clone(); name->setText("Antje"); listWidget.insertItem(0,name); name = proto->clone(); name->setText("Daniel"); listWidget.insertItem(0,name); name = proto; name->setText("Barbara"); listWidget.insertItem(0,name); listWidget.sortItems(); listWidget.show(); return app.exec();
}
</source>
Get QListWidgetItem from QListWidget
<source lang="cpp"> /*
* Copyright (c) 2006-2007, Johan Thelin * * All rights reserved. * * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * Neither the name of APress nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * */
- include "listwidgetdialog.h"
- include <QListWidget>
- include <QPushButton>
- include <QGridLayout>
ListWidgetDialog::ListWidgetDialog() : QDialog(0) {
QPushButton *left, *right; QGridLayout *layout = new QGridLayout( this ); layout->addWidget( left = new QPushButton( "<<" ), 0, 1 ); layout->addWidget( right = new QPushButton( ">>" ), 1, 1 ); layout->addWidget( leftList = new QListWidget(), 0, 0, 3, 1 ); layout->addWidget( rightList = new QListWidget(), 0, 2, 3, 1 ); connect( left, SIGNAL(clicked()), this, SLOT(moveLeft()) ); connect( right, SIGNAL(clicked()), this, SLOT(moveRight()) ); QStringList items; items << "Argentine" << "Brazilian" << "South African" << "USA West" << "Monaco" << "Belgian" << "Spanish" << "Swedish" << "French" << "British" << "German" << "Austrian" << "Dutch" << "Italian" << "USA East" << "Canadian"; leftList->addItems( items );
}
void ListWidgetDialog::moveLeft() {
if( rightList->selectedItems().count() != 1 ) return; QListWidgetItem *item = rightList->takeItem( rightList->currentRow() ); leftList->addItem( item );
} void ListWidgetDialog::moveRight() {
if( leftList->selectedItems().count() != 1 ) return; QListWidgetItem *item = leftList->takeItem( leftList->currentRow() ); rightList->addItem( item );
}
Chapter03\listwidget\listwidgetdialog.h /*
* Copyright (c) 2006-2007, Johan Thelin * * All rights reserved. * * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * Neither the name of APress nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * */
- ifndef LISTWIDGETDIALOG_H
- define LISTWIDGETDIALOG_H
- include <QDialog>
class QListWidget; class ListWidgetDialog : public QDialog {
Q_OBJECT
public:
ListWidgetDialog();
public slots:
void moveLeft(); void moveRight();
private:
QListWidget *leftList; QListWidget *rightList;
};
- endif // LISTWIDGETDIALOG_H
Chapter03\listwidget\main.cpp /*
* Copyright (c) 2006-2007, Johan Thelin * * All rights reserved. * * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * Neither the name of APress nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * */
- include <QApplication>
- include "listwidgetdialog.h"
int main( int argc, char **argv ) {
QApplication app( argc, argv ); ListWidgetDialog dlg; dlg.show(); return app.exec();
}
</source>