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<h1 class="title">spreadsheet.cpp Example File</h1>
<span class="small-subtitle">demos/spreadsheet/spreadsheet.cpp</span>
<!-- $$$demos/spreadsheet/spreadsheet.cpp-description -->
<div class="descr"> <a name="details"></a>
<pre class="cpp"> <span class="comment">/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the demonstration applications of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
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** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
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****************************************************************************/</span>
<span class="preprocessor">#include <QtGui></span>
<span class="preprocessor">#include "spreadsheet.h"</span>
<span class="preprocessor">#include "spreadsheetdelegate.h"</span>
<span class="preprocessor">#include "spreadsheetitem.h"</span>
<span class="preprocessor">#include "printview.h"</span>
SpreadSheet<span class="operator">::</span>SpreadSheet(<span class="type">int</span> rows<span class="operator">,</span> <span class="type">int</span> cols<span class="operator">,</span> <span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>parent)
: <span class="type"><a href="qmainwindow.html">QMainWindow</a></span>(parent)
{
addToolBar(toolBar <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtoolbar.html">QToolBar</a></span>());
formulaInput <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlineedit.html">QLineEdit</a></span>();
cellLabel <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlabel.html">QLabel</a></span>(toolBar);
cellLabel<span class="operator">-</span><span class="operator">></span>setMinimumSize(<span class="number">80</span><span class="operator">,</span> <span class="number">0</span>);
toolBar<span class="operator">-</span><span class="operator">></span>addWidget(cellLabel);
toolBar<span class="operator">-</span><span class="operator">></span>addWidget(formulaInput);
table <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtablewidget.html">QTableWidget</a></span>(rows<span class="operator">,</span> cols<span class="operator">,</span> <span class="keyword">this</span>);
<span class="keyword">for</span> (<span class="type">int</span> c <span class="operator">=</span> <span class="number">0</span>; c <span class="operator"><</span> cols; <span class="operator">+</span><span class="operator">+</span>c) {
<span class="type"><a href="qstring.html">QString</a></span> character(<span class="type"><a href="qchar.html">QChar</a></span>(<span class="char">'A'</span> <span class="operator">+</span> c));
table<span class="operator">-</span><span class="operator">></span>setHorizontalHeaderItem(c<span class="operator">,</span> <span class="keyword">new</span> <span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span>(character));
}
table<span class="operator">-</span><span class="operator">></span>setItemPrototype(table<span class="operator">-</span><span class="operator">></span>item(rows <span class="operator">-</span><span class="number">1</span><span class="operator">,</span> cols <span class="operator">-</span> <span class="number">1</span>));
table<span class="operator">-</span><span class="operator">></span>setItemDelegate(<span class="keyword">new</span> SpreadSheetDelegate());
createActions();
updateColor(<span class="number">0</span>);
setupMenuBar();
setupContents();
setupContextMenu();
setCentralWidget(table);
statusBar();
connect(table<span class="operator">,</span> SIGNAL(currentItemChanged(<span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span><span class="operator">*</span><span class="operator">,</span><span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span><span class="operator">*</span>))<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> SLOT(updateStatus(<span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span><span class="operator">*</span>)));
connect(table<span class="operator">,</span> SIGNAL(currentItemChanged(<span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span><span class="operator">*</span><span class="operator">,</span><span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span><span class="operator">*</span>))<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> SLOT(updateColor(<span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span><span class="operator">*</span>)));
connect(table<span class="operator">,</span> SIGNAL(currentItemChanged(<span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span><span class="operator">*</span><span class="operator">,</span><span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span><span class="operator">*</span>))<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> SLOT(updateLineEdit(<span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span><span class="operator">*</span>)));
connect(table<span class="operator">,</span> SIGNAL(itemChanged(<span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span><span class="operator">*</span>))<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> SLOT(updateStatus(<span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span><span class="operator">*</span>)));
connect(formulaInput<span class="operator">,</span> SIGNAL(returnPressed())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(returnPressed()));
connect(table<span class="operator">,</span> SIGNAL(itemChanged(<span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span><span class="operator">*</span>))<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> SLOT(updateLineEdit(<span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span><span class="operator">*</span>)));
setWindowTitle(tr(<span class="string">"Spreadsheet"</span>));
}
<span class="type">void</span> SpreadSheet<span class="operator">::</span>createActions()
{
cell_sumAction <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">"Sum"</span>)<span class="operator">,</span> <span class="keyword">this</span>);
connect(cell_sumAction<span class="operator">,</span> SIGNAL(triggered())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(actionSum()));
cell_addAction <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">"&Add"</span>)<span class="operator">,</span> <span class="keyword">this</span>);
cell_addAction<span class="operator">-</span><span class="operator">></span>setShortcut(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>CTRL <span class="operator">|</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>Key_Plus);
connect(cell_addAction<span class="operator">,</span> SIGNAL(triggered())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(actionAdd()));
cell_subAction <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">"&Subtract"</span>)<span class="operator">,</span> <span class="keyword">this</span>);
cell_subAction<span class="operator">-</span><span class="operator">></span>setShortcut(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>CTRL <span class="operator">|</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>Key_Minus);
connect(cell_subAction<span class="operator">,</span> SIGNAL(triggered())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(actionSubtract()));
cell_mulAction <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">"&Multiply"</span>)<span class="operator">,</span> <span class="keyword">this</span>);
cell_mulAction<span class="operator">-</span><span class="operator">></span>setShortcut(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>CTRL <span class="operator">|</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>Key_multiply);
connect(cell_mulAction<span class="operator">,</span> SIGNAL(triggered())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(actionMultiply()));
cell_divAction <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">"&Divide"</span>)<span class="operator">,</span> <span class="keyword">this</span>);
cell_divAction<span class="operator">-</span><span class="operator">></span>setShortcut(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>CTRL <span class="operator">|</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>Key_division);
connect(cell_divAction<span class="operator">,</span> SIGNAL(triggered())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(actionDivide()));
fontAction <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">"Font..."</span>)<span class="operator">,</span> <span class="keyword">this</span>);
fontAction<span class="operator">-</span><span class="operator">></span>setShortcut(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>CTRL <span class="operator">|</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>Key_F);
connect(fontAction<span class="operator">,</span> SIGNAL(triggered())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(selectFont()));
colorAction <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(<span class="type"><a href="qpixmap.html">QPixmap</a></span>(<span class="number">16</span><span class="operator">,</span> <span class="number">16</span>)<span class="operator">,</span> tr(<span class="string">"Background &Color..."</span>)<span class="operator">,</span> <span class="keyword">this</span>);
connect(colorAction<span class="operator">,</span> SIGNAL(triggered())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(selectColor()));
clearAction <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">"Clear"</span>)<span class="operator">,</span> <span class="keyword">this</span>);
clearAction<span class="operator">-</span><span class="operator">></span>setShortcut(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>Key_Delete);
connect(clearAction<span class="operator">,</span> SIGNAL(triggered())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(clear()));
aboutSpreadSheet <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">"About Spreadsheet"</span>)<span class="operator">,</span> <span class="keyword">this</span>);
connect(aboutSpreadSheet<span class="operator">,</span> SIGNAL(triggered())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(showAbout()));
exitAction <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">"E&xit"</span>)<span class="operator">,</span> <span class="keyword">this</span>);
connect(exitAction<span class="operator">,</span> SIGNAL(triggered())<span class="operator">,</span> qApp<span class="operator">,</span> SLOT(quit()));
printAction <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">"&Print"</span>)<span class="operator">,</span> <span class="keyword">this</span>);
connect(printAction<span class="operator">,</span> SIGNAL(triggered())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(print()));
firstSeparator <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(<span class="keyword">this</span>);
firstSeparator<span class="operator">-</span><span class="operator">></span>setSeparator(<span class="keyword">true</span>);
secondSeparator <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(<span class="keyword">this</span>);
secondSeparator<span class="operator">-</span><span class="operator">></span>setSeparator(<span class="keyword">true</span>);
}
<span class="type">void</span> SpreadSheet<span class="operator">::</span>setupMenuBar()
{
<span class="type"><a href="qmenu.html">QMenu</a></span> <span class="operator">*</span>fileMenu <span class="operator">=</span> menuBar()<span class="operator">-</span><span class="operator">></span>addMenu(tr(<span class="string">"&File"</span>));
fileMenu<span class="operator">-</span><span class="operator">></span>addAction(printAction);
fileMenu<span class="operator">-</span><span class="operator">></span>addAction(exitAction);
<span class="type"><a href="qmenu.html">QMenu</a></span> <span class="operator">*</span>cellMenu <span class="operator">=</span> menuBar()<span class="operator">-</span><span class="operator">></span>addMenu(tr(<span class="string">"&Cell"</span>));
cellMenu<span class="operator">-</span><span class="operator">></span>addAction(cell_addAction);
cellMenu<span class="operator">-</span><span class="operator">></span>addAction(cell_subAction);
cellMenu<span class="operator">-</span><span class="operator">></span>addAction(cell_mulAction);
cellMenu<span class="operator">-</span><span class="operator">></span>addAction(cell_divAction);
cellMenu<span class="operator">-</span><span class="operator">></span>addAction(cell_sumAction);
cellMenu<span class="operator">-</span><span class="operator">></span>addSeparator();
cellMenu<span class="operator">-</span><span class="operator">></span>addAction(colorAction);
cellMenu<span class="operator">-</span><span class="operator">></span>addAction(fontAction);
menuBar()<span class="operator">-</span><span class="operator">></span>addSeparator();
<span class="type"><a href="qmenu.html">QMenu</a></span> <span class="operator">*</span>aboutMenu <span class="operator">=</span> menuBar()<span class="operator">-</span><span class="operator">></span>addMenu(tr(<span class="string">"&Help"</span>));
aboutMenu<span class="operator">-</span><span class="operator">></span>addAction(aboutSpreadSheet);
}
<span class="type">void</span> SpreadSheet<span class="operator">::</span>updateStatus(<span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span> <span class="operator">*</span>item)
{
<span class="keyword">if</span> (item <span class="operator">&</span><span class="operator">&</span> item <span class="operator">=</span><span class="operator">=</span> table<span class="operator">-</span><span class="operator">></span>currentItem()) {
statusBar()<span class="operator">-</span><span class="operator">></span>showMessage(item<span class="operator">-</span><span class="operator">></span>data(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>StatusTipRole)<span class="operator">.</span>toString()<span class="operator">,</span>
<span class="number">1000</span>);
cellLabel<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"Cell: (%1)"</span>)<span class="operator">.</span>arg(encode_pos(table<span class="operator">-</span><span class="operator">></span>row(item)<span class="operator">,</span>
table<span class="operator">-</span><span class="operator">></span>column(item))));
}
}
<span class="type">void</span> SpreadSheet<span class="operator">::</span>updateColor(<span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span> <span class="operator">*</span>item)
{
<span class="type"><a href="qpixmap.html">QPixmap</a></span> pix(<span class="number">16</span><span class="operator">,</span> <span class="number">16</span>);
<span class="type"><a href="qcolor.html">QColor</a></span> col;
<span class="keyword">if</span> (item)
col <span class="operator">=</span> item<span class="operator">-</span><span class="operator">></span>backgroundColor();
<span class="keyword">if</span> (<span class="operator">!</span>col<span class="operator">.</span>isValid())
col <span class="operator">=</span> palette()<span class="operator">.</span>base()<span class="operator">.</span>color();
<span class="type"><a href="qpainter.html">QPainter</a></span> pt(<span class="operator">&</span>pix);
pt<span class="operator">.</span>fillRect(<span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">16</span><span class="operator">,</span> <span class="number">16</span><span class="operator">,</span> col);
<span class="type"><a href="qcolor.html">QColor</a></span> lighter <span class="operator">=</span> col<span class="operator">.</span>light();
pt<span class="operator">.</span>setPen(lighter);
<span class="type"><a href="qpoint.html">QPoint</a></span> lightFrame<span class="operator">[</span><span class="operator">]</span> <span class="operator">=</span> { <span class="type"><a href="qpoint.html">QPoint</a></span>(<span class="number">0</span><span class="operator">,</span> <span class="number">15</span>)<span class="operator">,</span> <span class="type"><a href="qpoint.html">QPoint</a></span>(<span class="number">0</span><span class="operator">,</span> <span class="number">0</span>)<span class="operator">,</span> <span class="type"><a href="qpoint.html">QPoint</a></span>(<span class="number">15</span><span class="operator">,</span> <span class="number">0</span>) };
pt<span class="operator">.</span>drawPolyline(lightFrame<span class="operator">,</span> <span class="number">3</span>);
pt<span class="operator">.</span>setPen(col<span class="operator">.</span>dark());
<span class="type"><a href="qpoint.html">QPoint</a></span> darkFrame<span class="operator">[</span><span class="operator">]</span> <span class="operator">=</span> { <span class="type"><a href="qpoint.html">QPoint</a></span>(<span class="number">1</span><span class="operator">,</span> <span class="number">15</span>)<span class="operator">,</span> <span class="type"><a href="qpoint.html">QPoint</a></span>(<span class="number">15</span><span class="operator">,</span> <span class="number">15</span>)<span class="operator">,</span> <span class="type"><a href="qpoint.html">QPoint</a></span>(<span class="number">15</span><span class="operator">,</span> <span class="number">1</span>) };
pt<span class="operator">.</span>drawPolyline(darkFrame<span class="operator">,</span> <span class="number">3</span>);
pt<span class="operator">.</span>end();
colorAction<span class="operator">-</span><span class="operator">></span>setIcon(pix);
}
<span class="type">void</span> SpreadSheet<span class="operator">::</span>updateLineEdit(<span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span> <span class="operator">*</span>item)
{
<span class="keyword">if</span> (item <span class="operator">!</span><span class="operator">=</span> table<span class="operator">-</span><span class="operator">></span>currentItem())
<span class="keyword">return</span>;
<span class="keyword">if</span> (item)
formulaInput<span class="operator">-</span><span class="operator">></span>setText(item<span class="operator">-</span><span class="operator">></span>data(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>EditRole)<span class="operator">.</span>toString());
<span class="keyword">else</span>
formulaInput<span class="operator">-</span><span class="operator">></span>clear();
}
<span class="type">void</span> SpreadSheet<span class="operator">::</span>returnPressed()
{
<span class="type"><a href="qstring.html">QString</a></span> text <span class="operator">=</span> formulaInput<span class="operator">-</span><span class="operator">></span>text();
<span class="type">int</span> row <span class="operator">=</span> table<span class="operator">-</span><span class="operator">></span>currentRow();
<span class="type">int</span> col <span class="operator">=</span> table<span class="operator">-</span><span class="operator">></span>currentColumn();
<span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span> <span class="operator">*</span>item <span class="operator">=</span> table<span class="operator">-</span><span class="operator">></span>item(row<span class="operator">,</span> col);
<span class="keyword">if</span> (<span class="operator">!</span>item)
table<span class="operator">-</span><span class="operator">></span>setItem(row<span class="operator">,</span> col<span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(text));
<span class="keyword">else</span>
item<span class="operator">-</span><span class="operator">></span>setData(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>EditRole<span class="operator">,</span> text);
table<span class="operator">-</span><span class="operator">></span>viewport()<span class="operator">-</span><span class="operator">></span>update();
}
<span class="type">void</span> SpreadSheet<span class="operator">::</span>selectColor()
{
<span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span> <span class="operator">*</span>item <span class="operator">=</span> table<span class="operator">-</span><span class="operator">></span>currentItem();
<span class="type"><a href="qcolor.html">QColor</a></span> col <span class="operator">=</span> item <span class="operator">?</span> item<span class="operator">-</span><span class="operator">></span>backgroundColor() : table<span class="operator">-</span><span class="operator">></span>palette()<span class="operator">.</span>base()<span class="operator">.</span>color();
col <span class="operator">=</span> <span class="type"><a href="qcolordialog.html">QColorDialog</a></span><span class="operator">::</span>getColor(col<span class="operator">,</span> <span class="keyword">this</span>);
<span class="keyword">if</span> (<span class="operator">!</span>col<span class="operator">.</span>isValid())
<span class="keyword">return</span>;
<span class="type"><a href="qlist.html">QList</a></span><span class="operator"><</span><span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span><span class="operator">*</span><span class="operator">></span> selected <span class="operator">=</span> table<span class="operator">-</span><span class="operator">></span>selectedItems();
<span class="keyword">if</span> (selected<span class="operator">.</span>count() <span class="operator">=</span><span class="operator">=</span> <span class="number">0</span>)
<span class="keyword">return</span>;
foreach(<span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span> <span class="operator">*</span>i<span class="operator">,</span> selected)
<span class="keyword">if</span> (i)
i<span class="operator">-</span><span class="operator">></span>setBackgroundColor(col);
updateColor(table<span class="operator">-</span><span class="operator">></span>currentItem());
}
<span class="type">void</span> SpreadSheet<span class="operator">::</span>selectFont()
{
<span class="type"><a href="qlist.html">QList</a></span><span class="operator"><</span><span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span><span class="operator">*</span><span class="operator">></span> selected <span class="operator">=</span> table<span class="operator">-</span><span class="operator">></span>selectedItems();
<span class="keyword">if</span> (selected<span class="operator">.</span>count() <span class="operator">=</span><span class="operator">=</span> <span class="number">0</span>)
<span class="keyword">return</span>;
<span class="type">bool</span> ok <span class="operator">=</span> <span class="keyword">false</span>;
<span class="type"><a href="qfont.html">QFont</a></span> fnt <span class="operator">=</span> <span class="type"><a href="qfontdialog.html">QFontDialog</a></span><span class="operator">::</span>getFont(<span class="operator">&</span>ok<span class="operator">,</span> font()<span class="operator">,</span> <span class="keyword">this</span>);
<span class="keyword">if</span> (<span class="operator">!</span>ok)
<span class="keyword">return</span>;
foreach(<span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span> <span class="operator">*</span>i<span class="operator">,</span> selected)
<span class="keyword">if</span> (i)
i<span class="operator">-</span><span class="operator">></span>setFont(fnt);
}
<span class="type">bool</span> SpreadSheet<span class="operator">::</span>runInputDialog(<span class="keyword">const</span> <span class="type"><a href="qstring.html">QString</a></span> <span class="operator">&</span>title<span class="operator">,</span>
<span class="keyword">const</span> <span class="type"><a href="qstring.html">QString</a></span> <span class="operator">&</span>c1Text<span class="operator">,</span>
<span class="keyword">const</span> <span class="type"><a href="qstring.html">QString</a></span> <span class="operator">&</span>c2Text<span class="operator">,</span>
<span class="keyword">const</span> <span class="type"><a href="qstring.html">QString</a></span> <span class="operator">&</span>opText<span class="operator">,</span>
<span class="keyword">const</span> <span class="type"><a href="qstring.html">QString</a></span> <span class="operator">&</span>outText<span class="operator">,</span>
<span class="type"><a href="qstring.html">QString</a></span> <span class="operator">*</span>cell1<span class="operator">,</span> <span class="type"><a href="qstring.html">QString</a></span> <span class="operator">*</span>cell2<span class="operator">,</span> <span class="type"><a href="qstring.html">QString</a></span> <span class="operator">*</span>outCell)
{
<span class="type"><a href="qstringlist.html">QStringList</a></span> rows<span class="operator">,</span> cols;
<span class="keyword">for</span> (<span class="type">int</span> c <span class="operator">=</span> <span class="number">0</span>; c <span class="operator"><</span> table<span class="operator">-</span><span class="operator">></span>columnCount(); <span class="operator">+</span><span class="operator">+</span>c)
cols <span class="operator"><</span><span class="operator"><</span> <span class="type"><a href="qchar.html">QChar</a></span>(<span class="char">'A'</span> <span class="operator">+</span> c);
<span class="keyword">for</span> (<span class="type">int</span> r <span class="operator">=</span> <span class="number">0</span>; r <span class="operator"><</span> table<span class="operator">-</span><span class="operator">></span>rowCount(); <span class="operator">+</span><span class="operator">+</span>r)
rows <span class="operator"><</span><span class="operator"><</span> <span class="type"><a href="qstring.html">QString</a></span><span class="operator">::</span>number(<span class="number">1</span> <span class="operator">+</span> r);
<span class="type"><a href="qdialog.html">QDialog</a></span> addDialog(<span class="keyword">this</span>);
addDialog<span class="operator">.</span>setWindowTitle(title);
<span class="type"><a href="qgroupbox.html">QGroupBox</a></span> group(title<span class="operator">,</span> <span class="operator">&</span>addDialog);
group<span class="operator">.</span>setMinimumSize(<span class="number">250</span><span class="operator">,</span> <span class="number">100</span>);
<span class="type"><a href="qlabel.html">QLabel</a></span> cell1Label(c1Text<span class="operator">,</span> <span class="operator">&</span>group);
<span class="type"><a href="qcombobox.html">QComboBox</a></span> cell1RowInput(<span class="operator">&</span>group);
<span class="type">int</span> c1Row<span class="operator">,</span> c1Col;
decode_pos(<span class="operator">*</span>cell1<span class="operator">,</span> <span class="operator">&</span>c1Row<span class="operator">,</span> <span class="operator">&</span>c1Col);
cell1RowInput<span class="operator">.</span>addItems(rows);
cell1RowInput<span class="operator">.</span>setCurrentIndex(c1Row);
<span class="type"><a href="qcombobox.html">QComboBox</a></span> cell1ColInput(<span class="operator">&</span>group);
cell1ColInput<span class="operator">.</span>addItems(cols);
cell1ColInput<span class="operator">.</span>setCurrentIndex(c1Col);
<span class="type"><a href="qlabel.html">QLabel</a></span> operatorLabel(opText<span class="operator">,</span> <span class="operator">&</span>group);
operatorLabel<span class="operator">.</span>setAlignment(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>AlignHCenter);
<span class="type"><a href="qlabel.html">QLabel</a></span> cell2Label(c2Text<span class="operator">,</span> <span class="operator">&</span>group);
<span class="type"><a href="qcombobox.html">QComboBox</a></span> cell2RowInput(<span class="operator">&</span>group);
<span class="type">int</span> c2Row<span class="operator">,</span> c2Col;
decode_pos(<span class="operator">*</span>cell2<span class="operator">,</span> <span class="operator">&</span>c2Row<span class="operator">,</span> <span class="operator">&</span>c2Col);
cell2RowInput<span class="operator">.</span>addItems(rows);
cell2RowInput<span class="operator">.</span>setCurrentIndex(c2Row);
<span class="type"><a href="qcombobox.html">QComboBox</a></span> cell2ColInput(<span class="operator">&</span>group);
cell2ColInput<span class="operator">.</span>addItems(cols);
cell2ColInput<span class="operator">.</span>setCurrentIndex(c2Col);
<span class="type"><a href="qlabel.html">QLabel</a></span> equalsLabel(<span class="string">"="</span><span class="operator">,</span> <span class="operator">&</span>group);
equalsLabel<span class="operator">.</span>setAlignment(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>AlignHCenter);
<span class="type"><a href="qlabel.html">QLabel</a></span> outLabel(outText<span class="operator">,</span> <span class="operator">&</span>group);
<span class="type"><a href="qcombobox.html">QComboBox</a></span> outRowInput(<span class="operator">&</span>group);
<span class="type">int</span> outRow<span class="operator">,</span> outCol;
decode_pos(<span class="operator">*</span>outCell<span class="operator">,</span> <span class="operator">&</span>outRow<span class="operator">,</span> <span class="operator">&</span>outCol);
outRowInput<span class="operator">.</span>addItems(rows);
outRowInput<span class="operator">.</span>setCurrentIndex(outRow);
<span class="type"><a href="qcombobox.html">QComboBox</a></span> outColInput(<span class="operator">&</span>group);
outColInput<span class="operator">.</span>addItems(cols);
outColInput<span class="operator">.</span>setCurrentIndex(outCol);
<span class="type"><a href="qpushbutton.html">QPushButton</a></span> cancelButton(tr(<span class="string">"Cancel"</span>)<span class="operator">,</span> <span class="operator">&</span>addDialog);
connect(<span class="operator">&</span>cancelButton<span class="operator">,</span> SIGNAL(clicked())<span class="operator">,</span> <span class="operator">&</span>addDialog<span class="operator">,</span> SLOT(reject()));
<span class="type"><a href="qpushbutton.html">QPushButton</a></span> okButton(tr(<span class="string">"OK"</span>)<span class="operator">,</span> <span class="operator">&</span>addDialog);
okButton<span class="operator">.</span>setDefault(<span class="keyword">true</span>);
connect(<span class="operator">&</span>okButton<span class="operator">,</span> SIGNAL(clicked())<span class="operator">,</span> <span class="operator">&</span>addDialog<span class="operator">,</span> SLOT(accept()));
<span class="type"><a href="qhboxlayout.html">QHBoxLayout</a></span> <span class="operator">*</span>buttonsLayout <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qhboxlayout.html">QHBoxLayout</a></span>;
buttonsLayout<span class="operator">-</span><span class="operator">></span>addStretch(<span class="number">1</span>);
buttonsLayout<span class="operator">-</span><span class="operator">></span>addWidget(<span class="operator">&</span>okButton);
buttonsLayout<span class="operator">-</span><span class="operator">></span>addSpacing(<span class="number">10</span>);
buttonsLayout<span class="operator">-</span><span class="operator">></span>addWidget(<span class="operator">&</span>cancelButton);
<span class="type"><a href="qvboxlayout.html">QVBoxLayout</a></span> <span class="operator">*</span>dialogLayout <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qvboxlayout.html">QVBoxLayout</a></span>(<span class="operator">&</span>addDialog);
dialogLayout<span class="operator">-</span><span class="operator">></span>addWidget(<span class="operator">&</span>group);
dialogLayout<span class="operator">-</span><span class="operator">></span>addStretch(<span class="number">1</span>);
dialogLayout<span class="operator">-</span><span class="operator">></span>addItem(buttonsLayout);
<span class="type"><a href="qhboxlayout.html">QHBoxLayout</a></span> <span class="operator">*</span>cell1Layout <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qhboxlayout.html">QHBoxLayout</a></span>;
cell1Layout<span class="operator">-</span><span class="operator">></span>addWidget(<span class="operator">&</span>cell1Label);
cell1Layout<span class="operator">-</span><span class="operator">></span>addSpacing(<span class="number">10</span>);
cell1Layout<span class="operator">-</span><span class="operator">></span>addWidget(<span class="operator">&</span>cell1ColInput);
cell1Layout<span class="operator">-</span><span class="operator">></span>addSpacing(<span class="number">10</span>);
cell1Layout<span class="operator">-</span><span class="operator">></span>addWidget(<span class="operator">&</span>cell1RowInput);
<span class="type"><a href="qhboxlayout.html">QHBoxLayout</a></span> <span class="operator">*</span>cell2Layout <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qhboxlayout.html">QHBoxLayout</a></span>;
cell2Layout<span class="operator">-</span><span class="operator">></span>addWidget(<span class="operator">&</span>cell2Label);
cell2Layout<span class="operator">-</span><span class="operator">></span>addSpacing(<span class="number">10</span>);
cell2Layout<span class="operator">-</span><span class="operator">></span>addWidget(<span class="operator">&</span>cell2ColInput);
cell2Layout<span class="operator">-</span><span class="operator">></span>addSpacing(<span class="number">10</span>);
cell2Layout<span class="operator">-</span><span class="operator">></span>addWidget(<span class="operator">&</span>cell2RowInput);
<span class="type"><a href="qhboxlayout.html">QHBoxLayout</a></span> <span class="operator">*</span>outLayout <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qhboxlayout.html">QHBoxLayout</a></span>;
outLayout<span class="operator">-</span><span class="operator">></span>addWidget(<span class="operator">&</span>outLabel);
outLayout<span class="operator">-</span><span class="operator">></span>addSpacing(<span class="number">10</span>);
outLayout<span class="operator">-</span><span class="operator">></span>addWidget(<span class="operator">&</span>outColInput);
outLayout<span class="operator">-</span><span class="operator">></span>addSpacing(<span class="number">10</span>);
outLayout<span class="operator">-</span><span class="operator">></span>addWidget(<span class="operator">&</span>outRowInput);
<span class="type"><a href="qvboxlayout.html">QVBoxLayout</a></span> <span class="operator">*</span>vLayout <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qvboxlayout.html">QVBoxLayout</a></span>(<span class="operator">&</span>group);
vLayout<span class="operator">-</span><span class="operator">></span>addItem(cell1Layout);
vLayout<span class="operator">-</span><span class="operator">></span>addWidget(<span class="operator">&</span>operatorLabel);
vLayout<span class="operator">-</span><span class="operator">></span>addItem(cell2Layout);
vLayout<span class="operator">-</span><span class="operator">></span>addWidget(<span class="operator">&</span>equalsLabel);
vLayout<span class="operator">-</span><span class="operator">></span>addStretch(<span class="number">1</span>);
vLayout<span class="operator">-</span><span class="operator">></span>addItem(outLayout);
<span class="keyword">if</span> (addDialog<span class="operator">.</span>exec()) {
<span class="operator">*</span>cell1 <span class="operator">=</span> cell1ColInput<span class="operator">.</span>currentText() <span class="operator">+</span> cell1RowInput<span class="operator">.</span>currentText();
<span class="operator">*</span>cell2 <span class="operator">=</span> cell2ColInput<span class="operator">.</span>currentText() <span class="operator">+</span> cell2RowInput<span class="operator">.</span>currentText();
<span class="operator">*</span>outCell <span class="operator">=</span> outColInput<span class="operator">.</span>currentText() <span class="operator">+</span> outRowInput<span class="operator">.</span>currentText();
<span class="keyword">return</span> <span class="keyword">true</span>;
}
<span class="keyword">return</span> <span class="keyword">false</span>;
}
<span class="type">void</span> SpreadSheet<span class="operator">::</span>actionSum()
{
<span class="type">int</span> row_first <span class="operator">=</span> <span class="number">0</span>;
<span class="type">int</span> row_last <span class="operator">=</span> <span class="number">0</span>;
<span class="type">int</span> row_cur <span class="operator">=</span> <span class="number">0</span>;
<span class="type">int</span> col_first <span class="operator">=</span> <span class="number">0</span>;
<span class="type">int</span> col_last <span class="operator">=</span> <span class="number">0</span>;
<span class="type">int</span> col_cur <span class="operator">=</span> <span class="number">0</span>;
<span class="type"><a href="qlist.html">QList</a></span><span class="operator"><</span><span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span><span class="operator">*</span><span class="operator">></span> selected <span class="operator">=</span> table<span class="operator">-</span><span class="operator">></span>selectedItems();
<span class="keyword">if</span> (<span class="operator">!</span>selected<span class="operator">.</span>isEmpty()) {
<span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span> <span class="operator">*</span>first <span class="operator">=</span> selected<span class="operator">.</span>first();
<span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span> <span class="operator">*</span>last <span class="operator">=</span> selected<span class="operator">.</span>last();
row_first <span class="operator">=</span> table<span class="operator">-</span><span class="operator">></span>row(first);
row_last <span class="operator">=</span> table<span class="operator">-</span><span class="operator">></span>row(last);
col_first <span class="operator">=</span> table<span class="operator">-</span><span class="operator">></span>column(first);
col_last <span class="operator">=</span> table<span class="operator">-</span><span class="operator">></span>column(last);
}
<span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span> <span class="operator">*</span>current <span class="operator">=</span> table<span class="operator">-</span><span class="operator">></span>currentItem();
<span class="keyword">if</span> (current) {
row_cur <span class="operator">=</span> table<span class="operator">-</span><span class="operator">></span>row(current);
col_cur <span class="operator">=</span> table<span class="operator">-</span><span class="operator">></span>column(current);
}
<span class="type"><a href="qstring.html">QString</a></span> cell1 <span class="operator">=</span> encode_pos(row_first<span class="operator">,</span> col_first);
<span class="type"><a href="qstring.html">QString</a></span> cell2 <span class="operator">=</span> encode_pos(row_last<span class="operator">,</span> col_last);
<span class="type"><a href="qstring.html">QString</a></span> out <span class="operator">=</span> encode_pos(row_cur<span class="operator">,</span> col_cur);
<span class="keyword">if</span> (runInputDialog(tr(<span class="string">"Sum cells"</span>)<span class="operator">,</span> tr(<span class="string">"First cell:"</span>)<span class="operator">,</span> tr(<span class="string">"Last cell:"</span>)<span class="operator">,</span>
<span class="type"><a href="qstring.html">QString</a></span>(<span class="string">"%1"</span>)<span class="operator">.</span>arg(<span class="type"><a href="qchar.html">QChar</a></span>(<span class="number">0x03a3</span>))<span class="operator">,</span> tr(<span class="string">"Output to:"</span>)<span class="operator">,</span>
<span class="operator">&</span>cell1<span class="operator">,</span> <span class="operator">&</span>cell2<span class="operator">,</span> <span class="operator">&</span>out)) {
<span class="type">int</span> row<span class="operator">,</span> col;
decode_pos(out<span class="operator">,</span> <span class="operator">&</span>row<span class="operator">,</span> <span class="operator">&</span>col);
table<span class="operator">-</span><span class="operator">></span>item(row<span class="operator">,</span> col)<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"sum %1 %2"</span>)<span class="operator">.</span>arg(cell1<span class="operator">,</span> cell2));
}
}
<span class="type">void</span> SpreadSheet<span class="operator">::</span>actionMath_helper(<span class="keyword">const</span> <span class="type"><a href="qstring.html">QString</a></span> <span class="operator">&</span>title<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="qstring.html">QString</a></span> <span class="operator">&</span>op)
{
<span class="type"><a href="qstring.html">QString</a></span> cell1 <span class="operator">=</span> <span class="string">"C1"</span>;
<span class="type"><a href="qstring.html">QString</a></span> cell2 <span class="operator">=</span> <span class="string">"C2"</span>;
<span class="type"><a href="qstring.html">QString</a></span> out <span class="operator">=</span> <span class="string">"C3"</span>;
<span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span> <span class="operator">*</span>current <span class="operator">=</span> table<span class="operator">-</span><span class="operator">></span>currentItem();
<span class="keyword">if</span> (current)
out <span class="operator">=</span> encode_pos(table<span class="operator">-</span><span class="operator">></span>currentRow()<span class="operator">,</span> table<span class="operator">-</span><span class="operator">></span>currentColumn());
<span class="keyword">if</span> (runInputDialog(title<span class="operator">,</span> tr(<span class="string">"Cell 1"</span>)<span class="operator">,</span> tr(<span class="string">"Cell 2"</span>)<span class="operator">,</span> op<span class="operator">,</span> tr(<span class="string">"Output to:"</span>)<span class="operator">,</span>
<span class="operator">&</span>cell1<span class="operator">,</span> <span class="operator">&</span>cell2<span class="operator">,</span> <span class="operator">&</span>out)) {
<span class="type">int</span> row<span class="operator">,</span> col;
decode_pos(out<span class="operator">,</span> <span class="operator">&</span>row<span class="operator">,</span> <span class="operator">&</span>col);
table<span class="operator">-</span><span class="operator">></span>item(row<span class="operator">,</span> col)<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"%1 %2 %3"</span>)<span class="operator">.</span>arg(op<span class="operator">,</span> cell1<span class="operator">,</span> cell2));
}
}
<span class="type">void</span> SpreadSheet<span class="operator">::</span>actionAdd()
{
actionMath_helper(tr(<span class="string">"Addition"</span>)<span class="operator">,</span> <span class="string">"+"</span>);
}
<span class="type">void</span> SpreadSheet<span class="operator">::</span>actionSubtract()
{
actionMath_helper(tr(<span class="string">"Subtraction"</span>)<span class="operator">,</span> <span class="string">"-"</span>);
}
<span class="type">void</span> SpreadSheet<span class="operator">::</span>actionMultiply()
{
actionMath_helper(tr(<span class="string">"Multiplication"</span>)<span class="operator">,</span> <span class="string">"*"</span>);
}
<span class="type">void</span> SpreadSheet<span class="operator">::</span>actionDivide()
{
actionMath_helper(tr(<span class="string">"Division"</span>)<span class="operator">,</span> <span class="string">"/"</span>);
}
<span class="type">void</span> SpreadSheet<span class="operator">::</span>clear()
{
foreach (<span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span> <span class="operator">*</span>i<span class="operator">,</span> table<span class="operator">-</span><span class="operator">></span>selectedItems())
i<span class="operator">-</span><span class="operator">></span>setText(<span class="string">""</span>);
}
<span class="type">void</span> SpreadSheet<span class="operator">::</span>setupContextMenu()
{
addAction(cell_addAction);
addAction(cell_subAction);
addAction(cell_mulAction);
addAction(cell_divAction);
addAction(cell_sumAction);
addAction(firstSeparator);
addAction(colorAction);
addAction(fontAction);
addAction(secondSeparator);
addAction(clearAction);
setContextMenuPolicy(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>ActionsContextMenu);
}
<span class="type">void</span> SpreadSheet<span class="operator">::</span>setupContents()
{
<span class="type"><a href="qcolor.html">QColor</a></span> titleBackground(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>lightGray);
<span class="type"><a href="qfont.html">QFont</a></span> titleFont <span class="operator">=</span> table<span class="operator">-</span><span class="operator">></span>font();
titleFont<span class="operator">.</span>setBold(<span class="keyword">true</span>);
<span class="comment">// column 0</span>
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"Item"</span>));
table<span class="operator">-</span><span class="operator">></span>item(<span class="number">0</span><span class="operator">,</span> <span class="number">0</span>)<span class="operator">-</span><span class="operator">></span>setBackgroundColor(titleBackground);
table<span class="operator">-</span><span class="operator">></span>item(<span class="number">0</span><span class="operator">,</span> <span class="number">0</span>)<span class="operator">-</span><span class="operator">></span>setToolTip(<span class="string">"This column shows the purchased item/service"</span>);
table<span class="operator">-</span><span class="operator">></span>item(<span class="number">0</span><span class="operator">,</span> <span class="number">0</span>)<span class="operator">-</span><span class="operator">></span>setFont(titleFont);
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">1</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"AirportBus"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">2</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"Flight (Munich)"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">3</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"Lunch"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">4</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"Flight (LA)"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">5</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"Taxi"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">6</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"Dinner"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">7</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"Hotel"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">8</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"Flight (Oslo)"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">9</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"Total:"</span>));
table<span class="operator">-</span><span class="operator">></span>item(<span class="number">9</span><span class="operator">,</span> <span class="number">0</span>)<span class="operator">-</span><span class="operator">></span>setFont(titleFont);
table<span class="operator">-</span><span class="operator">></span>item(<span class="number">9</span><span class="operator">,</span> <span class="number">0</span>)<span class="operator">-</span><span class="operator">></span>setBackgroundColor(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>lightGray);
<span class="comment">// column 1</span>
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">0</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"Date"</span>));
table<span class="operator">-</span><span class="operator">></span>item(<span class="number">0</span><span class="operator">,</span> <span class="number">1</span>)<span class="operator">-</span><span class="operator">></span>setBackgroundColor(titleBackground);
table<span class="operator">-</span><span class="operator">></span>item(<span class="number">0</span><span class="operator">,</span> <span class="number">1</span>)<span class="operator">-</span><span class="operator">></span>setToolTip(<span class="string">"This column shows the purchase date, double click to change"</span>);
table<span class="operator">-</span><span class="operator">></span>item(<span class="number">0</span><span class="operator">,</span> <span class="number">1</span>)<span class="operator">-</span><span class="operator">></span>setFont(titleFont);
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">1</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"15/6/2006"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">2</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"15/6/2006"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">3</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"15/6/2006"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">4</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"21/5/2006"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">5</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"16/6/2006"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">6</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"16/6/2006"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">7</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"16/6/2006"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">8</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"18/6/2006"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">9</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem());
table<span class="operator">-</span><span class="operator">></span>item(<span class="number">9</span><span class="operator">,</span> <span class="number">1</span>)<span class="operator">-</span><span class="operator">></span>setBackgroundColor(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>lightGray);
<span class="comment">// column 2</span>
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">0</span><span class="operator">,</span> <span class="number">2</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"Price"</span>));
table<span class="operator">-</span><span class="operator">></span>item(<span class="number">0</span><span class="operator">,</span> <span class="number">2</span>)<span class="operator">-</span><span class="operator">></span>setBackgroundColor(titleBackground);
table<span class="operator">-</span><span class="operator">></span>item(<span class="number">0</span><span class="operator">,</span> <span class="number">2</span>)<span class="operator">-</span><span class="operator">></span>setToolTip(<span class="string">"This column shows the price of the purchase"</span>);
table<span class="operator">-</span><span class="operator">></span>item(<span class="number">0</span><span class="operator">,</span> <span class="number">2</span>)<span class="operator">-</span><span class="operator">></span>setFont(titleFont);
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">1</span><span class="operator">,</span> <span class="number">2</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"150"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">2</span><span class="operator">,</span> <span class="number">2</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"2350"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">3</span><span class="operator">,</span> <span class="number">2</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"-14"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">4</span><span class="operator">,</span> <span class="number">2</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"980"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">5</span><span class="operator">,</span> <span class="number">2</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"5"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">6</span><span class="operator">,</span> <span class="number">2</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"120"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">7</span><span class="operator">,</span> <span class="number">2</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"300"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">8</span><span class="operator">,</span> <span class="number">2</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"1240"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">9</span><span class="operator">,</span> <span class="number">2</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem());
table<span class="operator">-</span><span class="operator">></span>item(<span class="number">9</span><span class="operator">,</span> <span class="number">2</span>)<span class="operator">-</span><span class="operator">></span>setBackgroundColor(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>lightGray);
<span class="comment">// column 3</span>
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">0</span><span class="operator">,</span> <span class="number">3</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"Currency"</span>));
table<span class="operator">-</span><span class="operator">></span>item(<span class="number">0</span><span class="operator">,</span> <span class="number">3</span>)<span class="operator">-</span><span class="operator">></span>setBackgroundColor(titleBackground);
table<span class="operator">-</span><span class="operator">></span>item(<span class="number">0</span><span class="operator">,</span> <span class="number">3</span>)<span class="operator">-</span><span class="operator">></span>setToolTip(<span class="string">"This column shows the currency"</span>);
table<span class="operator">-</span><span class="operator">></span>item(<span class="number">0</span><span class="operator">,</span> <span class="number">3</span>)<span class="operator">-</span><span class="operator">></span>setFont(titleFont);
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">1</span><span class="operator">,</span> <span class="number">3</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"NOK"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">2</span><span class="operator">,</span> <span class="number">3</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"NOK"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">3</span><span class="operator">,</span> <span class="number">3</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"EUR"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">4</span><span class="operator">,</span> <span class="number">3</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"EUR"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">5</span><span class="operator">,</span> <span class="number">3</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"USD"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">6</span><span class="operator">,</span> <span class="number">3</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"USD"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">7</span><span class="operator">,</span> <span class="number">3</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"USD"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">8</span><span class="operator">,</span> <span class="number">3</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"USD"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">9</span><span class="operator">,</span> <span class="number">3</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem());
table<span class="operator">-</span><span class="operator">></span>item(<span class="number">9</span><span class="operator">,</span><span class="number">3</span>)<span class="operator">-</span><span class="operator">></span>setBackgroundColor(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>lightGray);
<span class="comment">// column 4</span>
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">0</span><span class="operator">,</span> <span class="number">4</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"Ex. Rate"</span>));
table<span class="operator">-</span><span class="operator">></span>item(<span class="number">0</span><span class="operator">,</span> <span class="number">4</span>)<span class="operator">-</span><span class="operator">></span>setBackgroundColor(titleBackground);
table<span class="operator">-</span><span class="operator">></span>item(<span class="number">0</span><span class="operator">,</span> <span class="number">4</span>)<span class="operator">-</span><span class="operator">></span>setToolTip(<span class="string">"This column shows the exchange rate to NOK"</span>);
table<span class="operator">-</span><span class="operator">></span>item(<span class="number">0</span><span class="operator">,</span> <span class="number">4</span>)<span class="operator">-</span><span class="operator">></span>setFont(titleFont);
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">1</span><span class="operator">,</span> <span class="number">4</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"1"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">2</span><span class="operator">,</span> <span class="number">4</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"1"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">3</span><span class="operator">,</span> <span class="number">4</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"8"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">4</span><span class="operator">,</span> <span class="number">4</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"8"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">5</span><span class="operator">,</span> <span class="number">4</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"7"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">6</span><span class="operator">,</span> <span class="number">4</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"7"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">7</span><span class="operator">,</span> <span class="number">4</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"7"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">8</span><span class="operator">,</span> <span class="number">4</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"7"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">9</span><span class="operator">,</span> <span class="number">4</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem());
table<span class="operator">-</span><span class="operator">></span>item(<span class="number">9</span><span class="operator">,</span><span class="number">4</span>)<span class="operator">-</span><span class="operator">></span>setBackgroundColor(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>lightGray);
<span class="comment">// column 5</span>
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">0</span><span class="operator">,</span> <span class="number">5</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"NOK"</span>));
table<span class="operator">-</span><span class="operator">></span>item(<span class="number">0</span><span class="operator">,</span> <span class="number">5</span>)<span class="operator">-</span><span class="operator">></span>setBackgroundColor(titleBackground);
table<span class="operator">-</span><span class="operator">></span>item(<span class="number">0</span><span class="operator">,</span> <span class="number">5</span>)<span class="operator">-</span><span class="operator">></span>setToolTip(<span class="string">"This column shows the expenses in NOK"</span>);
table<span class="operator">-</span><span class="operator">></span>item(<span class="number">0</span><span class="operator">,</span> <span class="number">5</span>)<span class="operator">-</span><span class="operator">></span>setFont(titleFont);
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">1</span><span class="operator">,</span> <span class="number">5</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"* C2 E2"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">2</span><span class="operator">,</span> <span class="number">5</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"* C3 E3"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">3</span><span class="operator">,</span> <span class="number">5</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"* C4 E4"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">4</span><span class="operator">,</span> <span class="number">5</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"* C5 E5"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">5</span><span class="operator">,</span> <span class="number">5</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"* C6 E6"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">6</span><span class="operator">,</span> <span class="number">5</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"* C7 E7"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">7</span><span class="operator">,</span> <span class="number">5</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"* C8 E8"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">8</span><span class="operator">,</span> <span class="number">5</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"* C9 E9"</span>));
table<span class="operator">-</span><span class="operator">></span>setItem(<span class="number">9</span><span class="operator">,</span> <span class="number">5</span><span class="operator">,</span> <span class="keyword">new</span> SpreadSheetItem(<span class="string">"sum F2 F9"</span>));
table<span class="operator">-</span><span class="operator">></span>item(<span class="number">9</span><span class="operator">,</span><span class="number">5</span>)<span class="operator">-</span><span class="operator">></span>setBackgroundColor(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>lightGray);
}
<span class="keyword">const</span> <span class="type">char</span> <span class="operator">*</span>htmlText <span class="operator">=</span>
<span class="string">"<HTML>"</span>
<span class="string">"<p><b>This demo shows use of <c>QTableWidget</c> with custom handling for"</span>
<span class="string">" individual cells.</b></p>"</span>
<span class="string">"<p>Using a customized table item we make it possible to have dynamic"</span>
<span class="string">" output in different cells. The content that is implemented for this"</span>
<span class="string">" particular demo is:"</span>
<span class="string">"<ul>"</span>
<span class="string">"<li>Adding two cells.</li>"</span>
<span class="string">"<li>Subtracting one cell from another.</li>"</span>
<span class="string">"<li>Multiplying two cells.</li>"</span>
<span class="string">"<li>Dividing one cell with another.</li>"</span>
<span class="string">"<li>Summing the contents of an arbitrary number of cells.</li>"</span>
<span class="string">"</HTML>"</span>;
<span class="type">void</span> SpreadSheet<span class="operator">::</span>showAbout()
{
<span class="type"><a href="qmessagebox.html">QMessageBox</a></span><span class="operator">::</span>about(<span class="keyword">this</span><span class="operator">,</span> <span class="string">"About Spreadsheet"</span><span class="operator">,</span> htmlText);
}
<span class="type">void</span> decode_pos(<span class="keyword">const</span> <span class="type"><a href="qstring.html">QString</a></span> <span class="operator">&</span>pos<span class="operator">,</span> <span class="type">int</span> <span class="operator">*</span>row<span class="operator">,</span> <span class="type">int</span> <span class="operator">*</span>col)
{
<span class="keyword">if</span> (pos<span class="operator">.</span>isEmpty()) {
<span class="operator">*</span>col <span class="operator">=</span> <span class="operator">-</span><span class="number">1</span>;
<span class="operator">*</span>row <span class="operator">=</span> <span class="operator">-</span><span class="number">1</span>;
} <span class="keyword">else</span> {
<span class="operator">*</span>col <span class="operator">=</span> pos<span class="operator">.</span>at(<span class="number">0</span>)<span class="operator">.</span>toLatin1() <span class="operator">-</span> <span class="char">'A'</span>;
<span class="operator">*</span>row <span class="operator">=</span> pos<span class="operator">.</span>right(pos<span class="operator">.</span>size() <span class="operator">-</span> <span class="number">1</span>)<span class="operator">.</span>toInt() <span class="operator">-</span> <span class="number">1</span>;
}
}
<span class="type"><a href="qstring.html">QString</a></span> encode_pos(<span class="type">int</span> row<span class="operator">,</span> <span class="type">int</span> col)
{
<span class="keyword">return</span> <span class="type"><a href="qstring.html">QString</a></span>(col <span class="operator">+</span> <span class="char">'A'</span>) <span class="operator">+</span> <span class="type"><a href="qstring.html">QString</a></span><span class="operator">::</span>number(row <span class="operator">+</span> <span class="number">1</span>);
}
<span class="type">void</span> SpreadSheet<span class="operator">::</span>print()
{
<span class="preprocessor">#ifndef QT_NO_PRINTER</span>
<span class="type"><a href="qprinter.html">QPrinter</a></span> printer(<span class="type"><a href="qprinter.html">QPrinter</a></span><span class="operator">::</span>ScreenResolution);
<span class="type"><a href="qprintpreviewdialog.html">QPrintPreviewDialog</a></span> dlg(<span class="operator">&</span>printer);
PrintView view;
view<span class="operator">.</span>setModel(table<span class="operator">-</span><span class="operator">></span>model());
connect(<span class="operator">&</span>dlg<span class="operator">,</span> SIGNAL(paintRequested(<span class="type"><a href="qprinter.html">QPrinter</a></span><span class="operator">*</span>))<span class="operator">,</span>
<span class="operator">&</span>view<span class="operator">,</span> SLOT(print(<span class="type"><a href="qprinter.html">QPrinter</a></span><span class="operator">*</span>)));
dlg<span class="operator">.</span>exec();
<span class="preprocessor">#endif</span>
}</pre>
</div>
<!-- @@@demos/spreadsheet/spreadsheet.cpp -->
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