Qt:Документация 4.3.2/demos-chip-mainwindow-cpp

Материал из Wiki.crossplatform.ru

Перейти к: навигация, поиск
40px Внимание: Актуальная версия перевода документации находится здесь

__NOTOC__

Image:qt-logo.png

Главная · Все классы · Основные классы · Классы по группам · Модули · Функции

Image:trolltech-logo.png

[править] mainwindow.cpp Example File
demos/chip/mainwindow.cpp

 /****************************************************************************
 **
 ** Copyright (C) 2005-2007 Trolltech ASA. All rights reserved.
 **
 ** This file is part of the demonstration applications of the Qt Toolkit.
 **
 ** This file may be used under the terms of the GNU General Public
 ** License version 2.0 as published by the Free Software Foundation
 ** and appearing in the file LICENSE.GPL included in the packaging of
 ** this file.  Please review the following information to ensure GNU
 ** General Public Licensing requirements will be met:
 ** http://trolltech.com/products/qt/licenses/licensing/opensource/
 **
 ** If you are unsure which license is appropriate for your use, please
 ** review the following information:
 ** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
 ** or contact the sales department at sales@trolltech.com.
 **
 ** In addition, as a special exception, Trolltech gives you certain
 ** additional rights. These rights are described in the Trolltech GPL
 ** Exception version 1.0, which can be found at
 ** http://www.trolltech.com/products/qt/gplexception/ and in the file
 ** GPL_EXCEPTION.txt in this package.
 **
 ** In addition, as a special exception, Trolltech, as the sole copyright
 ** holder for Qt Designer, grants users of the Qt/Eclipse Integration
 ** plug-in the right for the Qt/Eclipse Integration to link to
 ** functionality provided by Qt Designer and its related libraries.
 **
 ** Trolltech reserves all rights not expressly granted herein.
 **
 ** Trolltech ASA (c) 2007
 **
 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 **
 ****************************************************************************/
 
 #include "mainwindow.h"
 #include "view.h"
 #include "chip.h"
 
 #include <QtGui>
 
 MainWindow::MainWindow(QWidget *parent)
     : QWidget(parent)
 {
     populateScene();
 
     h1Splitter = new QSplitter;
     h2Splitter = new QSplitter;
 
     QSplitter *vSplitter = new QSplitter;
     vSplitter->setOrientation(Qt::Vertical);
     vSplitter->addWidget(h1Splitter);
     vSplitter->addWidget(h2Splitter);
 
     View *view = new View("Top left view");
     view->view()->setScene(scene);
     h1Splitter->addWidget(view);
 
     view = new View("Top right view");
     view->view()->setScene(scene);
     h1Splitter->addWidget(view);
 
     view = new View("Bottom left view");
     view->view()->setScene(scene);
     h2Splitter->addWidget(view);
 
     view = new View("Bottom right view");
     view->view()->setScene(scene);
     h2Splitter->addWidget(view);
 
     QHBoxLayout *layout = new QHBoxLayout;
     layout->addWidget(vSplitter);
     setLayout(layout);
 
     setWindowTitle(tr("Chip Demo"));
 }
 
 void MainWindow::populateScene()
 {
     scene = new QGraphicsScene;
 
     QImage image(":/qt4logo.png");
 
     // Populate scene
     int xx = 0;
     int nitems = 0;
     for (int i = -11000; i < 11000; i += 110) {
         ++xx;
         int yy = 0;
         for (int j = -7000; j < 7000; j += 70) {
             ++yy;
             qreal x = (i + 11000) / 22000.0;
             qreal y = (j + 7000) / 14000.0;
 
             QColor color(image.pixel(int(image.width() * x), int(image.height() * y)));
             QGraphicsItem *item = new Chip(color, xx, yy);
             item->setPos(QPointF(i, j));
             scene->addItem(item);
 
             ++nitems;
         }
     }
 }

Copyright © 2007 Trolltech Trademarks
Qt 4.3.2