173 lines
6.1 KiB
C++
173 lines
6.1 KiB
C++
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/****************************************************************************
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**
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** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the examples of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** You may use this file under the terms of the BSD license as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
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** the names of its contributors may be used to endorse or promote
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** products derived from this software without specific prior written
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** permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QtGui>
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#include "pieview.h"
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#include "mainwindow.h"
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MainWindow::MainWindow()
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{
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QMenu *fileMenu = new QMenu(tr("&File"), this);
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QAction *openAction = fileMenu->addAction(tr("&Open..."));
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openAction->setShortcuts(QKeySequence::Open);
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QAction *saveAction = fileMenu->addAction(tr("&Save As..."));
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saveAction->setShortcuts(QKeySequence::SaveAs);
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QAction *quitAction = fileMenu->addAction(tr("E&xit"));
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quitAction->setShortcuts(QKeySequence::Quit);
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setupModel();
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setupViews();
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connect(openAction, SIGNAL(triggered()), this, SLOT(openFile()));
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connect(saveAction, SIGNAL(triggered()), this, SLOT(saveFile()));
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connect(quitAction, SIGNAL(triggered()), qApp, SLOT(quit()));
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menuBar()->addMenu(fileMenu);
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statusBar();
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openFile(":/Charts/qtdata.cht");
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setWindowTitle(tr("Chart"));
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resize(870, 550);
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}
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void MainWindow::setupModel()
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{
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model = new QStandardItemModel(8, 2, this);
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model->setHeaderData(0, Qt::Horizontal, tr("Label"));
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model->setHeaderData(1, Qt::Horizontal, tr("Quantity"));
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}
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void MainWindow::setupViews()
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{
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QSplitter *splitter = new QSplitter;
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QTableView *table = new QTableView;
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pieChart = new PieView;
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splitter->addWidget(table);
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splitter->addWidget(pieChart);
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splitter->setStretchFactor(0, 0);
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splitter->setStretchFactor(1, 1);
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table->setModel(model);
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pieChart->setModel(model);
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QItemSelectionModel *selectionModel = new QItemSelectionModel(model);
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table->setSelectionModel(selectionModel);
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pieChart->setSelectionModel(selectionModel);
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QHeaderView *headerView = table->horizontalHeader();
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headerView->setStretchLastSection(true);
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setCentralWidget(splitter);
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}
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void MainWindow::openFile(const QString &path)
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{
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QString fileName;
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if (path.isNull())
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fileName = QFileDialog::getOpenFileName(this, tr("Choose a data file"),
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"", "*.cht");
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else
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fileName = path;
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if (!fileName.isEmpty()) {
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QFile file(fileName);
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if (file.open(QFile::ReadOnly | QFile::Text)) {
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QTextStream stream(&file);
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QString line;
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model->removeRows(0, model->rowCount(QModelIndex()), QModelIndex());
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int row = 0;
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do {
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line = stream.readLine();
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if (!line.isEmpty()) {
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model->insertRows(row, 1, QModelIndex());
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QStringList pieces = line.split(",", QString::SkipEmptyParts);
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model->setData(model->index(row, 0, QModelIndex()),
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pieces.value(0));
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model->setData(model->index(row, 1, QModelIndex()),
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pieces.value(1));
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model->setData(model->index(row, 0, QModelIndex()),
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QColor(pieces.value(2)), Qt::DecorationRole);
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row++;
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}
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} while (!line.isEmpty());
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file.close();
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statusBar()->showMessage(tr("Loaded %1").arg(fileName), 2000);
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}
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}
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}
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void MainWindow::saveFile()
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{
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QString fileName = QFileDialog::getSaveFileName(this,
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tr("Save file as"), "", "*.cht");
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if (!fileName.isEmpty()) {
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QFile file(fileName);
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QTextStream stream(&file);
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if (file.open(QFile::WriteOnly | QFile::Text)) {
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for (int row = 0; row < model->rowCount(QModelIndex()); ++row) {
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QStringList pieces;
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pieces.append(model->data(model->index(row, 0, QModelIndex()),
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Qt::DisplayRole).toString());
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pieces.append(model->data(model->index(row, 1, QModelIndex()),
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Qt::DisplayRole).toString());
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pieces.append(model->data(model->index(row, 0, QModelIndex()),
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Qt::DecorationRole).toString());
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stream << pieces.join(",") << "\n";
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}
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}
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file.close();
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statusBar()->showMessage(tr("Saved %1").arg(fileName), 2000);
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}
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}
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