summaryrefslogtreecommitdiffstats
path: root/examples/itemviews/pixelator
diff options
context:
space:
mode:
authorQt by Nokia <qt-info@nokia.com>2011-04-27 12:05:43 +0200
committeraxis <qt-info@nokia.com>2011-04-27 12:05:43 +0200
commit38be0d13830efd2d98281c645c3a60afe05ffece (patch)
tree6ea73f3ec77f7d153333779883e8120f82820abe /examples/itemviews/pixelator
Initial import from the monolithic Qt.
This is the beginning of revision history for this module. If you want to look at revision history older than this, please refer to the Qt Git wiki for how to use Git history grafting. At the time of writing, this wiki is located here: http://qt.gitorious.org/qt/pages/GitIntroductionWithQt If you have already performed the grafting and you don't see any history beyond this commit, try running "git log" with the "--follow" argument. Branched from the monolithic repo, Qt master branch, at commit 896db169ea224deb96c59ce8af800d019de63f12
Diffstat (limited to 'examples/itemviews/pixelator')
-rw-r--r--examples/itemviews/pixelator/imagemodel.cpp91
-rw-r--r--examples/itemviews/pixelator/imagemodel.h68
-rw-r--r--examples/itemviews/pixelator/images.qrc5
-rw-r--r--examples/itemviews/pixelator/images/qt.pngbin0 -> 656 bytes
-rw-r--r--examples/itemviews/pixelator/main.cpp54
-rw-r--r--examples/itemviews/pixelator/mainwindow.cpp244
-rw-r--r--examples/itemviews/pixelator/mainwindow.h74
-rw-r--r--examples/itemviews/pixelator/pixelator.pro16
-rw-r--r--examples/itemviews/pixelator/pixeldelegate.cpp107
-rw-r--r--examples/itemviews/pixelator/pixeldelegate.h79
10 files changed, 738 insertions, 0 deletions
diff --git a/examples/itemviews/pixelator/imagemodel.cpp b/examples/itemviews/pixelator/imagemodel.cpp
new file mode 100644
index 0000000000..abf92ddef5
--- /dev/null
+++ b/examples/itemviews/pixelator/imagemodel.cpp
@@ -0,0 +1,91 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** 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 <QtGui>
+
+#include "imagemodel.h"
+
+//! [0]
+ImageModel::ImageModel(QObject *parent)
+ : QAbstractTableModel(parent)
+{
+}
+//! [0]
+
+//! [1]
+void ImageModel::setImage(const QImage &image)
+{
+ modelImage = image;
+ reset();
+}
+//! [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/itemviews/pixelator/imagemodel.h b/examples/itemviews/pixelator/imagemodel.h
new file mode 100644
index 0000000000..158f31dc0b
--- /dev/null
+++ b/examples/itemviews/pixelator/imagemodel.h
@@ -0,0 +1,68 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** 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/itemviews/pixelator/images.qrc b/examples/itemviews/pixelator/images.qrc
new file mode 100644
index 0000000000..c105e13895
--- /dev/null
+++ b/examples/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/itemviews/pixelator/images/qt.png b/examples/itemviews/pixelator/images/qt.png
new file mode 100644
index 0000000000..a2c9c77c16
--- /dev/null
+++ b/examples/itemviews/pixelator/images/qt.png
Binary files differ
diff --git a/examples/itemviews/pixelator/main.cpp b/examples/itemviews/pixelator/main.cpp
new file mode 100644
index 0000000000..e7f45e3f42
--- /dev/null
+++ b/examples/itemviews/pixelator/main.cpp
@@ -0,0 +1,54 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** 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/itemviews/pixelator/mainwindow.cpp b/examples/itemviews/pixelator/mainwindow.cpp
new file mode 100644
index 0000000000..62c6830313
--- /dev/null
+++ b/examples/itemviews/pixelator/mainwindow.cpp
@@ -0,0 +1,244 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** 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 <QtGui>
+
+#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/itemviews/pixelator/mainwindow.h b/examples/itemviews/pixelator/mainwindow.h
new file mode 100644
index 0000000000..5dc2a908db
--- /dev/null
+++ b/examples/itemviews/pixelator/mainwindow.h
@@ -0,0 +1,74 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** 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/itemviews/pixelator/pixelator.pro b/examples/itemviews/pixelator/pixelator.pro
new file mode 100644
index 0000000000..fecffcc64b
--- /dev/null
+++ b/examples/itemviews/pixelator/pixelator.pro
@@ -0,0 +1,16 @@
+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 = $$[QT_INSTALL_EXAMPLES]/qtbase/itemviews/pixelator
+INSTALLS += target sources
+
+symbian: include($$QT_SOURCE_TREE/examples/symbianpkgrules.pri)
diff --git a/examples/itemviews/pixelator/pixeldelegate.cpp b/examples/itemviews/pixelator/pixeldelegate.cpp
new file mode 100644
index 0000000000..9ec88e614c
--- /dev/null
+++ b/examples/itemviews/pixelator/pixeldelegate.cpp
@@ -0,0 +1,107 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** 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 <QtGui>
+
+#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(QBrush(Qt::black));
+//! [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/itemviews/pixelator/pixeldelegate.h b/examples/itemviews/pixelator/pixeldelegate.h
new file mode 100644
index 0000000000..3ff73b53e5
--- /dev/null
+++ b/examples/itemviews/pixelator/pixeldelegate.h
@@ -0,0 +1,79 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** 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