diff -r 41300fa6a67c -r f7bc934e204c util/doc/src/snippets/picture/picture.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/util/doc/src/snippets/picture/picture.cpp Wed Mar 31 11:06:36 2010 +0300 @@ -0,0 +1,152 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the documentation of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include + +void myProcessing(const QString &) +{ +} + +int main() +{ + QWidget myWidget; + { + // RECORD +//! [0] + QPicture picture; + QPainter painter; + painter.begin(&picture); // paint in picture + painter.drawEllipse(10,20, 80,70); // draw an ellipse + painter.end(); // painting done + picture.save("drawing.pic"); // save picture +//! [0] + } + + { + // REPLAY +//! [1] + QPicture picture; + picture.load("drawing.pic"); // load picture + QPainter painter; + painter.begin(&myImage); // paint in myImage + painter.drawPicture(0, 0, picture); // draw the picture at (0,0) + painter.end(); // painting done +//! [1] + } + + QPicture myPicture; + { + // FORMATS +//! [2] + QStringList list = QPicture::inputFormatList(); + foreach (QString string, list) + myProcessing(string); +//! [2] + } + + { + // OUTPUT +//! [3] + QStringList list = QPicture::outputFormatList(); + foreach (QString string, list) + myProcessing(string); +//! [3] + } + + { + // PIC READ +//! [4] + QPictureIO iio; + QPixmap pixmap; + iio.setFileName("vegeburger.pic"); + if (iio.read()) { // OK + QPicture picture = iio.picture(); + QPainter painter(&pixmap); + painter.drawPicture(0, 0, picture); + } +//! [4] + } + + { + QPixmap pixmap; + // PIC WRITE +//! [5] + QPictureIO iio; + QPicture picture; + QPainter painter(&picture); + painter.drawPixmap(0, 0, pixmap); + iio.setPicture(picture); + iio.setFileName("vegeburger.pic"); + iio.setFormat("PIC"); + if (iio.write()) + return true; // returned true if written successfully +//! [5] + } + +} + +// SVG READ +//! [6] +void readSVG(QPictureIO *picture) +{ + // read the picture using the picture->ioDevice() +} +//! [6] + +// SVG WRITE +//! [7] +void writeSVG(QPictureIO *picture) +{ + // write the picture using the picture->ioDevice() +} +//! [7] + +// USE SVG +void foo() { + +//! [8] + // add the SVG picture handler + // ... +//! [8] + QPictureIO::defineIOHandler("SVG", 0, 0, readSVG, writeSVG); + // ... + +}