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Diffstat (limited to 'examples/widgets/itemviews/chart/mainwindow.cpp')
| -rw-r--r-- | examples/widgets/itemviews/chart/mainwindow.cpp | 183 |
1 files changed, 0 insertions, 183 deletions
diff --git a/examples/widgets/itemviews/chart/mainwindow.cpp b/examples/widgets/itemviews/chart/mainwindow.cpp deleted file mode 100644 index 671cfb1941..0000000000 --- a/examples/widgets/itemviews/chart/mainwindow.cpp +++ /dev/null @@ -1,183 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the examples of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** BSD License Usage -** Alternatively, 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 The Qt Company Ltd 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 "pieview.h" -#include "mainwindow.h" - -#include <QtWidgets> - -MainWindow::MainWindow(QWidget *parent) - : QMainWindow(parent) -{ - QMenu *fileMenu = new QMenu(tr("&File"), this); - QAction *openAction = fileMenu->addAction(tr("&Open...")); - openAction->setShortcuts(QKeySequence::Open); - QAction *saveAction = fileMenu->addAction(tr("&Save As...")); - saveAction->setShortcuts(QKeySequence::SaveAs); - QAction *quitAction = fileMenu->addAction(tr("E&xit")); - quitAction->setShortcuts(QKeySequence::Quit); - - setupModel(); - setupViews(); - - connect(openAction, &QAction::triggered, this, &MainWindow::openFile); - connect(saveAction, &QAction::triggered, this, &MainWindow::saveFile); - connect(quitAction, &QAction::triggered, qApp, &QCoreApplication::quit); - - menuBar()->addMenu(fileMenu); - statusBar(); - - loadFile(":/Charts/qtdata.cht"); - - setWindowTitle(tr("Chart")); - resize(870, 550); -} - -void MainWindow::setupModel() -{ - model = new QStandardItemModel(8, 2, this); - model->setHeaderData(0, Qt::Horizontal, tr("Label")); - model->setHeaderData(1, Qt::Horizontal, tr("Quantity")); -} - -void MainWindow::setupViews() -{ - QSplitter *splitter = new QSplitter; - QTableView *table = new QTableView; - pieChart = new PieView; - splitter->addWidget(table); - splitter->addWidget(pieChart); - splitter->setStretchFactor(0, 0); - splitter->setStretchFactor(1, 1); - - table->setModel(model); - pieChart->setModel(model); - - QItemSelectionModel *selectionModel = new QItemSelectionModel(model); - table->setSelectionModel(selectionModel); - pieChart->setSelectionModel(selectionModel); - - QHeaderView *headerView = table->horizontalHeader(); - headerView->setStretchLastSection(true); - - setCentralWidget(splitter); -} - -void MainWindow::openFile() -{ - const QString fileName = - QFileDialog::getOpenFileName(this, tr("Choose a data file"), "", "*.cht"); - if (!fileName.isEmpty()) - loadFile(fileName); -} - -void MainWindow::loadFile(const QString &fileName) -{ - QFile file(fileName); - if (!file.open(QFile::ReadOnly | QFile::Text)) - return; - - QTextStream stream(&file); - - model->removeRows(0, model->rowCount(QModelIndex()), QModelIndex()); - - int row = 0; - while (!stream.atEnd()) { - const QString line = stream.readLine(); - if (!line.isEmpty()) { - model->insertRows(row, 1, QModelIndex()); - - const QStringList pieces = line.split(QLatin1Char(','), Qt::SkipEmptyParts); - if (pieces.size() < 3) - continue; - model->setData(model->index(row, 0, QModelIndex()), - pieces.value(0)); - model->setData(model->index(row, 1, QModelIndex()), - pieces.value(1)); - model->setData(model->index(row, 0, QModelIndex()), - QColor(pieces.value(2)), Qt::DecorationRole); - row++; - } - }; - - file.close(); - statusBar()->showMessage(tr("Loaded %1").arg(fileName), 2000); -} - -void MainWindow::saveFile() -{ - QString fileName = QFileDialog::getSaveFileName(this, - tr("Save file as"), "", "*.cht"); - - if (fileName.isEmpty()) - return; - - QFile file(fileName); - if (!file.open(QFile::WriteOnly | QFile::Text)) - return; - - QTextStream stream(&file); - for (int row = 0; row < model->rowCount(QModelIndex()); ++row) { - - QStringList pieces; - - pieces.append(model->data(model->index(row, 0, QModelIndex()), - Qt::DisplayRole).toString()); - pieces.append(model->data(model->index(row, 1, QModelIndex()), - Qt::DisplayRole).toString()); - pieces.append(model->data(model->index(row, 0, QModelIndex()), - Qt::DecorationRole).toString()); - - stream << pieces.join(',') << "\n"; - } - - file.close(); - statusBar()->showMessage(tr("Saved %1").arg(fileName), 2000); -} |