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-rw-r--r--examples/widgets/itemviews/pixelator/imagemodel.cpp92
-rw-r--r--examples/widgets/itemviews/pixelator/imagemodel.h68
-rw-r--r--examples/widgets/itemviews/pixelator/images.qrc5
-rw-r--r--examples/widgets/itemviews/pixelator/images/qt.pngbin0 -> 656 bytes
-rw-r--r--examples/widgets/itemviews/pixelator/main.cpp54
-rw-r--r--examples/widgets/itemviews/pixelator/mainwindow.cpp248
-rw-r--r--examples/widgets/itemviews/pixelator/mainwindow.h74
-rw-r--r--examples/widgets/itemviews/pixelator/pixelator.desktop11
-rw-r--r--examples/widgets/itemviews/pixelator/pixelator.pro17
-rw-r--r--examples/widgets/itemviews/pixelator/pixeldelegate.cpp107
-rw-r--r--examples/widgets/itemviews/pixelator/pixeldelegate.h79
11 files changed, 755 insertions, 0 deletions
diff --git a/examples/widgets/itemviews/pixelator/imagemodel.cpp b/examples/widgets/itemviews/pixelator/imagemodel.cpp
new file mode 100644
index 0000000000..efbf2d35bc
--- /dev/null
+++ b/examples/widgets/itemviews/pixelator/imagemodel.cpp
@@ -0,0 +1,92 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "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 Nokia Corporation and its Subsidiary(-ies) 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."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtWidgets>
+
+#include "imagemodel.h"
+
+//! [0]
+ImageModel::ImageModel(QObject *parent)
+ : QAbstractTableModel(parent)
+{
+}
+//! [0]
+
+//! [1]
+void ImageModel::setImage(const QImage &image)
+{
+ beginResetModel();
+ modelImage = image;
+ endResetModel();
+}
+//! [1]
+
+//! [2]
+int ImageModel::rowCount(const QModelIndex & /* parent */) const
+{
+ return modelImage.height();
+}
+
+int ImageModel::columnCount(const QModelIndex & /* parent */) const
+//! [2] //! [3]
+{
+ return modelImage.width();
+}
+//! [3]
+
+//! [4]
+QVariant ImageModel::data(const QModelIndex &index, int role) const
+{
+ if (!index.isValid() || role != Qt::DisplayRole)
+ return QVariant();
+ return qGray(modelImage.pixel(index.column(), index.row()));
+}
+//! [4]
+
+//! [5]
+QVariant ImageModel::headerData(int /* section */,
+ Qt::Orientation /* orientation */,
+ int role) const
+{
+ if (role == Qt::SizeHintRole)
+ return QSize(1, 1);
+ return QVariant();
+}
+//! [5]
diff --git a/examples/widgets/itemviews/pixelator/imagemodel.h b/examples/widgets/itemviews/pixelator/imagemodel.h
new file mode 100644
index 0000000000..2f778ca927
--- /dev/null
+++ b/examples/widgets/itemviews/pixelator/imagemodel.h
@@ -0,0 +1,68 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "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 Nokia Corporation and its Subsidiary(-ies) 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."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef IMAGEMODEL_H
+#define IMAGEMODEL_H
+
+#include <QAbstractTableModel>
+#include <QImage>
+
+//! [0]
+class ImageModel : public QAbstractTableModel
+{
+ Q_OBJECT
+
+public:
+ ImageModel(QObject *parent = 0);
+
+ void setImage(const QImage &image);
+
+ int rowCount(const QModelIndex &parent = QModelIndex()) const;
+ int columnCount(const QModelIndex &parent = QModelIndex()) const;
+
+ QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const;
+ QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const;
+
+private:
+ QImage modelImage;
+};
+//! [0]
+
+#endif
diff --git a/examples/widgets/itemviews/pixelator/images.qrc b/examples/widgets/itemviews/pixelator/images.qrc
new file mode 100644
index 0000000000..c105e13895
--- /dev/null
+++ b/examples/widgets/itemviews/pixelator/images.qrc
@@ -0,0 +1,5 @@
+<!DOCTYPE RCC><RCC version="1.0">
+<qresource>
+ <file>images/qt.png</file>
+</qresource>
+</RCC>
diff --git a/examples/widgets/itemviews/pixelator/images/qt.png b/examples/widgets/itemviews/pixelator/images/qt.png
new file mode 100644
index 0000000000..a2c9c77c16
--- /dev/null
+++ b/examples/widgets/itemviews/pixelator/images/qt.png
Binary files differ
diff --git a/examples/widgets/itemviews/pixelator/main.cpp b/examples/widgets/itemviews/pixelator/main.cpp
new file mode 100644
index 0000000000..e877051775
--- /dev/null
+++ b/examples/widgets/itemviews/pixelator/main.cpp
@@ -0,0 +1,54 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "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 Nokia Corporation and its Subsidiary(-ies) 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."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QApplication>
+
+#include "mainwindow.h"
+
+int main(int argc, char *argv[])
+{
+ Q_INIT_RESOURCE(images);
+
+ QApplication app(argc, argv);
+ MainWindow window;
+ window.show();
+ window.openImage(":/images/qt.png");
+ return app.exec();
+}
diff --git a/examples/widgets/itemviews/pixelator/mainwindow.cpp b/examples/widgets/itemviews/pixelator/mainwindow.cpp
new file mode 100644
index 0000000000..20dfba18f4
--- /dev/null
+++ b/examples/widgets/itemviews/pixelator/mainwindow.cpp
@@ -0,0 +1,248 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "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 Nokia Corporation and its Subsidiary(-ies) 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."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtWidgets>
+#ifndef QT_NO_PRINTER
+#include <QPrinter>
+#include <QPrintDialog>
+#endif
+
+#include "imagemodel.h"
+#include "mainwindow.h"
+#include "pixeldelegate.h"
+
+//! [0]
+MainWindow::MainWindow()
+{
+//! [0]
+ currentPath = QDir::homePath();
+ model = new ImageModel(this);
+
+ QWidget *centralWidget = new QWidget;
+
+//! [1]
+ view = new QTableView;
+ view->setShowGrid(false);
+ view->horizontalHeader()->hide();
+ view->verticalHeader()->hide();
+ view->horizontalHeader()->setMinimumSectionSize(1);
+ view->verticalHeader()->setMinimumSectionSize(1);
+ view->setModel(model);
+//! [1]
+
+//! [2]
+ PixelDelegate *delegate = new PixelDelegate(this);
+ view->setItemDelegate(delegate);
+//! [2]
+
+//! [3]
+ QLabel *pixelSizeLabel = new QLabel(tr("Pixel size:"));
+ QSpinBox *pixelSizeSpinBox = new QSpinBox;
+ pixelSizeSpinBox->setMinimum(4);
+ pixelSizeSpinBox->setMaximum(32);
+ pixelSizeSpinBox->setValue(12);
+//! [3]
+
+ QMenu *fileMenu = new QMenu(tr("&File"), this);
+ QAction *openAction = fileMenu->addAction(tr("&Open..."));
+ openAction->setShortcuts(QKeySequence::Open);
+
+ printAction = fileMenu->addAction(tr("&Print..."));
+ printAction->setEnabled(false);
+ printAction->setShortcut(QKeySequence::Print);
+
+ QAction *quitAction = fileMenu->addAction(tr("E&xit"));
+ quitAction->setShortcuts(QKeySequence::Quit);
+
+ QMenu *helpMenu = new QMenu(tr("&Help"), this);
+ QAction *aboutAction = helpMenu->addAction(tr("&About"));
+
+ menuBar()->addMenu(fileMenu);
+ menuBar()->addSeparator();
+ menuBar()->addMenu(helpMenu);
+
+ connect(openAction, SIGNAL(triggered()), this, SLOT(chooseImage()));
+ connect(printAction, SIGNAL(triggered()), this, SLOT(printImage()));
+ connect(quitAction, SIGNAL(triggered()), qApp, SLOT(quit()));
+ connect(aboutAction, SIGNAL(triggered()), this, SLOT(showAboutBox()));
+//! [4]
+ connect(pixelSizeSpinBox, SIGNAL(valueChanged(int)),
+ delegate, SLOT(setPixelSize(int)));
+ connect(pixelSizeSpinBox, SIGNAL(valueChanged(int)),
+ this, SLOT(updateView()));
+//! [4]
+
+ QHBoxLayout *controlsLayout = new QHBoxLayout;
+ controlsLayout->addWidget(pixelSizeLabel);
+ controlsLayout->addWidget(pixelSizeSpinBox);
+ controlsLayout->addStretch(1);
+
+ QVBoxLayout *mainLayout = new QVBoxLayout;
+ mainLayout->addWidget(view);
+ mainLayout->addLayout(controlsLayout);
+ centralWidget->setLayout(mainLayout);
+
+ setCentralWidget(centralWidget);
+
+ setWindowTitle(tr("Pixelator"));
+ resize(640, 480);
+//! [5]
+}
+//! [5]
+
+void MainWindow::chooseImage()
+{
+ QString fileName = QFileDialog::getOpenFileName(this,
+ tr("Choose an image"), currentPath, "*");
+
+ if (!fileName.isEmpty())
+ openImage(fileName);
+}
+
+void MainWindow::openImage(const QString &fileName)
+{
+ QImage image;
+
+ if (image.load(fileName)) {
+ model->setImage(image);
+ if (!fileName.startsWith(":/")) {
+ currentPath = fileName;
+ setWindowTitle(tr("%1 - Pixelator").arg(currentPath));
+ }
+
+ printAction->setEnabled(true);
+ updateView();
+ }
+}
+
+void MainWindow::printImage()
+{
+#ifndef QT_NO_PRINTER
+ if (model->rowCount(QModelIndex())*model->columnCount(QModelIndex())
+ > 90000) {
+ QMessageBox::StandardButton answer;
+ answer = QMessageBox::question(this, tr("Large Image Size"),
+ tr("The printed image may be very large. Are you sure that "
+ "you want to print it?"),
+ QMessageBox::Yes | QMessageBox::No);
+ if (answer == QMessageBox::No)
+ return;
+ }
+
+ QPrinter printer(QPrinter::HighResolution);
+
+ QPrintDialog *dlg = new QPrintDialog(&printer, this);
+ dlg->setWindowTitle(tr("Print Image"));
+
+ if (dlg->exec() != QDialog::Accepted)
+ return;
+
+ QPainter painter;
+ painter.begin(&printer);
+
+ int rows = model->rowCount(QModelIndex());
+ int columns = model->columnCount(QModelIndex());
+ int sourceWidth = (columns+1) * ItemSize;
+ int sourceHeight = (rows+1) * ItemSize;
+
+ painter.save();
+
+ double xscale = printer.pageRect().width()/double(sourceWidth);
+ double yscale = printer.pageRect().height()/double(sourceHeight);
+ double scale = qMin(xscale, yscale);
+
+ painter.translate(printer.paperRect().x() + printer.pageRect().width()/2,
+ printer.paperRect().y() + printer.pageRect().height()/2);
+ painter.scale(scale, scale);
+ painter.translate(-sourceWidth/2, -sourceHeight/2);
+
+ QStyleOptionViewItem option;
+ QModelIndex parent = QModelIndex();
+
+ QProgressDialog progress(tr("Printing..."), tr("Cancel"), 0, rows, this);
+ progress.setWindowModality(Qt::ApplicationModal);
+ float y = ItemSize/2;
+
+ for (int row = 0; row < rows; ++row) {
+ progress.setValue(row);
+ qApp->processEvents();
+ if (progress.wasCanceled())
+ break;
+
+ float x = ItemSize/2;
+
+ for (int column = 0; column < columns; ++column) {
+ option.rect = QRect(int(x), int(y), ItemSize, ItemSize);
+ view->itemDelegate()->paint(&painter, option,
+ model->index(row, column, parent));
+ x = x + ItemSize;
+ }
+ y = y + ItemSize;
+ }
+ progress.setValue(rows);
+
+ painter.restore();
+ painter.end();
+
+ if (progress.wasCanceled()) {
+ QMessageBox::information(this, tr("Printing canceled"),
+ tr("The printing process was canceled."), QMessageBox::Cancel);
+ }
+#else
+ QMessageBox::information(this, tr("Printing canceled"),
+ tr("Printing is not supported on this Qt build"), QMessageBox::Cancel);
+#endif
+}
+
+void MainWindow::showAboutBox()
+{
+ QMessageBox::about(this, tr("About the Pixelator example"),
+ tr("This example demonstrates how a standard view and a custom\n"
+ "delegate can be used to produce a specialized representation\n"
+ "of data in a simple custom model."));
+}
+
+//! [6]
+void MainWindow::updateView()
+{
+ view->resizeColumnsToContents();
+ view->resizeRowsToContents();
+}
+//! [6]
diff --git a/examples/widgets/itemviews/pixelator/mainwindow.h b/examples/widgets/itemviews/pixelator/mainwindow.h
new file mode 100644
index 0000000000..1aea1f9807
--- /dev/null
+++ b/examples/widgets/itemviews/pixelator/mainwindow.h
@@ -0,0 +1,74 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "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 Nokia Corporation and its Subsidiary(-ies) 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."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef MAINWINDOW_H
+#define MAINWINDOW_H
+
+#include <QMainWindow>
+
+class ImageModel;
+QT_BEGIN_NAMESPACE
+class QAction;
+class QTableView;
+QT_END_NAMESPACE
+
+class MainWindow : public QMainWindow
+{
+ Q_OBJECT
+
+public:
+ MainWindow();
+
+ void openImage(const QString &fileName);
+
+public slots:
+ void chooseImage();
+ void printImage();
+ void showAboutBox();
+ void updateView();
+
+private:
+ ImageModel *model;
+ QAction *printAction;
+ QString currentPath;
+ QTableView *view;
+};
+
+#endif
diff --git a/examples/widgets/itemviews/pixelator/pixelator.desktop b/examples/widgets/itemviews/pixelator/pixelator.desktop
new file mode 100644
index 0000000000..751deb13b3
--- /dev/null
+++ b/examples/widgets/itemviews/pixelator/pixelator.desktop
@@ -0,0 +1,11 @@
+[Desktop Entry]
+Encoding=UTF-8
+Version=1.0
+Type=Application
+Terminal=false
+Name=Pixelator
+Exec=/opt/usr/bin/pixelator
+Icon=pixelator
+X-Window-Icon=
+X-HildonDesk-ShowInToolbar=true
+X-Osso-Type=application/x-executable
diff --git a/examples/widgets/itemviews/pixelator/pixelator.pro b/examples/widgets/itemviews/pixelator/pixelator.pro
new file mode 100644
index 0000000000..48f8a58a58
--- /dev/null
+++ b/examples/widgets/itemviews/pixelator/pixelator.pro
@@ -0,0 +1,17 @@
+HEADERS = imagemodel.h \
+ mainwindow.h \
+ pixeldelegate.h
+SOURCES = imagemodel.cpp \
+ main.cpp \
+ mainwindow.cpp \
+ pixeldelegate.cpp
+RESOURCES += images.qrc
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/qtbase/itemviews/pixelator
+sources.files = $$SOURCES $$HEADERS $$RESOURCES *.pro images
+sources.path = $$[QT_INSTALL_EXAMPLES]/qtbase/itemviews/pixelator
+INSTALLS += target sources
+
+QT += widgets
+!isEmpty(QT.printsupport.name): QT += printsupport
diff --git a/examples/widgets/itemviews/pixelator/pixeldelegate.cpp b/examples/widgets/itemviews/pixelator/pixeldelegate.cpp
new file mode 100644
index 0000000000..5904c2e680
--- /dev/null
+++ b/examples/widgets/itemviews/pixelator/pixeldelegate.cpp
@@ -0,0 +1,107 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "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 Nokia Corporation and its Subsidiary(-ies) 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."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtWidgets>
+
+#include "pixeldelegate.h"
+
+//! [0]
+PixelDelegate::PixelDelegate(QObject *parent)
+ : QAbstractItemDelegate(parent)
+{
+ pixelSize = 12;
+}
+//! [0]
+
+//! [1]
+void PixelDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option,
+ const QModelIndex &index) const
+{
+//! [2]
+ if (option.state & QStyle::State_Selected)
+ painter->fillRect(option.rect, option.palette.highlight());
+//! [1]
+
+//! [3]
+ int size = qMin(option.rect.width(), option.rect.height());
+//! [3] //! [4]
+ int brightness = index.model()->data(index, Qt::DisplayRole).toInt();
+ double radius = (size/2.0) - (brightness/255.0 * size/2.0);
+ if (radius == 0.0)
+ return;
+//! [4]
+
+//! [5]
+ painter->save();
+//! [5] //! [6]
+ painter->setRenderHint(QPainter::Antialiasing, true);
+//! [6] //! [7]
+ painter->setPen(Qt::NoPen);
+//! [7] //! [8]
+ if (option.state & QStyle::State_Selected)
+//! [8] //! [9]
+ painter->setBrush(option.palette.highlightedText());
+ else
+//! [2]
+ painter->setBrush(option.palette.text());
+//! [9]
+
+//! [10]
+ painter->drawEllipse(QRectF(option.rect.x() + option.rect.width()/2 - radius,
+ option.rect.y() + option.rect.height()/2 - radius,
+ 2*radius, 2*radius));
+ painter->restore();
+}
+//! [10]
+
+//! [11]
+QSize PixelDelegate::sizeHint(const QStyleOptionViewItem & /* option */,
+ const QModelIndex & /* index */) const
+{
+ return QSize(pixelSize, pixelSize);
+}
+//! [11]
+
+//! [12]
+void PixelDelegate::setPixelSize(int size)
+{
+ pixelSize = size;
+}
+//! [12]
diff --git a/examples/widgets/itemviews/pixelator/pixeldelegate.h b/examples/widgets/itemviews/pixelator/pixeldelegate.h
new file mode 100644
index 0000000000..4035bc4571
--- /dev/null
+++ b/examples/widgets/itemviews/pixelator/pixeldelegate.h
@@ -0,0 +1,79 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "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 Nokia Corporation and its Subsidiary(-ies) 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."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef PIXELDELEGATE_H
+#define PIXELDELEGATE_H
+
+#include <QAbstractItemDelegate>
+#include <QFontMetrics>
+#include <QModelIndex>
+#include <QSize>
+
+QT_BEGIN_NAMESPACE
+class QAbstractItemModel;
+class QObject;
+class QPainter;
+QT_END_NAMESPACE
+
+static const int ItemSize = 256;
+
+//! [0]
+class PixelDelegate : public QAbstractItemDelegate
+{
+ Q_OBJECT
+
+public:
+ PixelDelegate(QObject *parent = 0);
+
+ void paint(QPainter *painter, const QStyleOptionViewItem &option,
+ const QModelIndex &index) const;
+
+ QSize sizeHint(const QStyleOptionViewItem &option,
+ const QModelIndex &index ) const;
+
+public slots:
+ void setPixelSize(int size);
+
+private:
+ int pixelSize;
+};
+//! [0]
+
+#endif