doc/src/snippets/picture/picture.cpp
changeset 0 1918ee327afb
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/doc/src/snippets/picture/picture.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,152 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 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 <QtGui>
+
+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);
+    // ...
+
+}