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Diffstat (limited to 'examples/webkit/webplugin/csvview.cpp')
| -rw-r--r-- | examples/webkit/webplugin/csvview.cpp | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/examples/webkit/webplugin/csvview.cpp b/examples/webkit/webplugin/csvview.cpp new file mode 100644 index 0000000..0996f24 --- /dev/null +++ b/examples/webkit/webplugin/csvview.cpp @@ -0,0 +1,190 @@ +/**************************************************************************** +** +** 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 <QtNetwork> +#include "csvview.h" + +//! [constructor] +CSVView::CSVView(const QString &mimeType, QWidget *parent) + : QTableView(parent) +{ + this->mimeType = mimeType; + + setEditTriggers(NoEditTriggers); + setSelectionBehavior(SelectRows); + setSelectionMode(SingleSelection); +} +//! [constructor] + +void CSVView::updateModel() +{ + QNetworkReply *reply = static_cast<QNetworkReply *>(sender()); + + if (reply->error() != QNetworkReply::NoError) + return; + + bool hasHeader = false; + QString charset = "latin1"; + + foreach (QString piece, mimeType.split(";")) { + piece = piece.trimmed(); + if (piece.contains("=")) { + int index = piece.indexOf("="); + QString left = piece.left(index).trimmed(); + QString right = piece.mid(index + 1).trimmed(); + if (left == "header") + hasHeader = (right == "present"); + else if (left == "charset") + charset = right; + } + } + + QTextStream stream(reply); + stream.setCodec(QTextCodec::codecForName(charset.toLatin1())); + + QStandardItemModel *model = new QStandardItemModel(this); + QList<QStandardItem *> items; + bool firstLine = hasHeader; + bool wasQuote = false; + bool wasCR = false; + bool quoted = false; + QString text; + + while (!stream.atEnd()) { + + QString ch = stream.read(1); + + if (wasQuote) { + if (ch == "\"") { + if (quoted) { + text += ch; // quoted "" are inserted as " + wasQuote = false; // no quotes are pending + } else { + quoted = true; // unquoted "" starts quoting + wasQuote = true; // with a pending quote + } + continue; // process the next character + + } else { + quoted = !quoted; // process the pending quote + wasQuote = false; // no quotes are pending + } // process the current character + + } else if (wasCR) { + wasCR = false; + + if (ch == "\n") { // CR LF represents the end of a row + if (!text.isEmpty()) + items.append(new QStandardItem(QString(text))); + + addRow(firstLine, model, items); + items.clear(); + text = ""; + firstLine = false; + continue; // process the next character + } else + text += "\r"; // CR on its own is inserted + } // process the current character + + // wasQuote is never true here. + // wasCR is never true here. + + if (ch == "\"") + wasQuote = true; // handle the pending quote later + + else if (ch == ",") { + if (quoted) + text += ch; + else { + items.append(new QStandardItem(QString(text))); + text = ""; + } + } + + else if (ch == "\r") { + if (!quoted) + wasCR = true; + else + text += ch; + } + + else if (ch == "\n") + text += ch; + else + text += ch; + + } + + if (items.count() > 0) + addRow(firstLine, model, items); + + reply->close(); + + setModel(model); + + connect(selectionModel(), + SIGNAL(currentChanged(const QModelIndex &, const QModelIndex &)), + this, SLOT(exportRow(const QModelIndex &))); + + resizeColumnsToContents(); + horizontalHeader()->setStretchLastSection(true); +} + +void CSVView::addRow(bool firstLine, QStandardItemModel *model, + const QList<QStandardItem *> &items) +{ + if (firstLine) { + for (int j = 0; j < items.count(); ++j) + model->setHorizontalHeaderItem(j, items[j]); + } else + model->appendRow(items); +} + +//! [export row] +void CSVView::exportRow(const QModelIndex ¤t) +{ + QString name = model()->index(current.row(), 0).data().toString(); + QString address = model()->index(current.row(), 1).data().toString(); + QString quantity = model()->index(current.row(), 2).data().toString(); + + emit rowSelected(name, address, quantity); +} +//! [export row] |