585 lines
54 KiB
HTML
585 lines
54 KiB
HTML
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<h1 class="title">mainwindow.cpp Example File</h1>
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<span class="small-subtitle">painting/fontsampler/mainwindow.cpp</span>
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<!-- $$$painting/fontsampler/mainwindow.cpp-description -->
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<div class="descr"> <a name="details"></a>
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<pre class="cpp"> <span class="comment">/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Contact: http://www.qt.io/licensing/
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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 The Qt Company Ltd nor the names of its
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** contributors may be used to endorse or promote products derived
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** from this software without specific prior written permission.
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**
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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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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/</span>
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<span class="preprocessor">#include <QtGui></span>
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<span class="preprocessor">#include "mainwindow.h"</span>
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MainWindow<span class="operator">::</span>MainWindow(<span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>parent)
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: <span class="type"><a href="qmainwindow.html">QMainWindow</a></span>(parent)
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{
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setupUi(<span class="keyword">this</span>);
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<span class="preprocessor">#if defined(Q_OS_SYMBIAN)</span>
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addDockWidget(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>BottomDockWidgetArea<span class="operator">,</span> dockWidget);
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<span class="preprocessor">#endif</span>
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sampleSizes <span class="operator"><</span><span class="operator"><</span> <span class="number">32</span> <span class="operator"><</span><span class="operator"><</span> <span class="number">24</span> <span class="operator"><</span><span class="operator"><</span> <span class="number">16</span> <span class="operator"><</span><span class="operator"><</span> <span class="number">14</span> <span class="operator"><</span><span class="operator"><</span> <span class="number">12</span> <span class="operator"><</span><span class="operator"><</span> <span class="number">8</span> <span class="operator"><</span><span class="operator"><</span> <span class="number">4</span> <span class="operator"><</span><span class="operator"><</span> <span class="number">2</span> <span class="operator"><</span><span class="operator"><</span> <span class="number">1</span>;
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markedCount <span class="operator">=</span> <span class="number">0</span>;
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setupFontTree();
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connect(quitAction<span class="operator">,</span> SIGNAL(triggered())<span class="operator">,</span> qApp<span class="operator">,</span> SLOT(quit()));
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connect(fontTree<span class="operator">,</span> SIGNAL(currentItemChanged(<span class="type"><a href="qtreewidgetitem.html">QTreeWidgetItem</a></span><span class="operator">*</span><span class="operator">,</span><span class="type"><a href="qtreewidgetitem.html">QTreeWidgetItem</a></span><span class="operator">*</span>))<span class="operator">,</span>
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<span class="keyword">this</span><span class="operator">,</span> SLOT(showFont(<span class="type"><a href="qtreewidgetitem.html">QTreeWidgetItem</a></span><span class="operator">*</span>)));
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connect(fontTree<span class="operator">,</span> SIGNAL(itemChanged(<span class="type"><a href="qtreewidgetitem.html">QTreeWidgetItem</a></span><span class="operator">*</span><span class="operator">,</span><span class="type">int</span>))<span class="operator">,</span>
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<span class="keyword">this</span><span class="operator">,</span> SLOT(updateStyles(<span class="type"><a href="qtreewidgetitem.html">QTreeWidgetItem</a></span><span class="operator">*</span><span class="operator">,</span><span class="type">int</span>)));
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fontTree<span class="operator">-</span><span class="operator">></span>setItemSelected(fontTree<span class="operator">-</span><span class="operator">></span>topLevelItem(<span class="number">0</span>)<span class="operator">,</span> <span class="keyword">true</span>);
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showFont(fontTree<span class="operator">-</span><span class="operator">></span>topLevelItem(<span class="number">0</span>));
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}
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<span class="type">void</span> MainWindow<span class="operator">::</span>setupFontTree()
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{
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<span class="type"><a href="qfontdatabase.html">QFontDatabase</a></span> database;
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fontTree<span class="operator">-</span><span class="operator">></span>setColumnCount(<span class="number">1</span>);
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fontTree<span class="operator">-</span><span class="operator">></span>setHeaderLabels(<span class="type"><a href="qstringlist.html">QStringList</a></span>() <span class="operator"><</span><span class="operator"><</span> tr(<span class="string">"Font"</span>));
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foreach (<span class="type"><a href="qstring.html">QString</a></span> family<span class="operator">,</span> database<span class="operator">.</span>families()) {
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<span class="keyword">const</span> <span class="type"><a href="qstringlist.html">QStringList</a></span> styles <span class="operator">=</span> database<span class="operator">.</span>styles(family);
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<span class="keyword">if</span> (styles<span class="operator">.</span>isEmpty())
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<span class="keyword">continue</span>;
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<span class="type"><a href="qtreewidgetitem.html">QTreeWidgetItem</a></span> <span class="operator">*</span>familyItem <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtreewidgetitem.html">QTreeWidgetItem</a></span>(fontTree);
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familyItem<span class="operator">-</span><span class="operator">></span>setText(<span class="number">0</span><span class="operator">,</span> family);
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|
familyItem<span class="operator">-</span><span class="operator">></span>setCheckState(<span class="number">0</span><span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>Unchecked);
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foreach (<span class="type"><a href="qstring.html">QString</a></span> style<span class="operator">,</span> styles) {
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<span class="type"><a href="qtreewidgetitem.html">QTreeWidgetItem</a></span> <span class="operator">*</span>styleItem <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtreewidgetitem.html">QTreeWidgetItem</a></span>(familyItem);
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styleItem<span class="operator">-</span><span class="operator">></span>setText(<span class="number">0</span><span class="operator">,</span> style);
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styleItem<span class="operator">-</span><span class="operator">></span>setCheckState(<span class="number">0</span><span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>Unchecked);
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|
styleItem<span class="operator">-</span><span class="operator">></span>setData(<span class="number">0</span><span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>UserRole<span class="operator">,</span>
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|
<span class="type"><a href="qvariant.html">QVariant</a></span>(database<span class="operator">.</span>weight(family<span class="operator">,</span> style)));
|
|
styleItem<span class="operator">-</span><span class="operator">></span>setData(<span class="number">0</span><span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>UserRole <span class="operator">+</span> <span class="number">1</span><span class="operator">,</span>
|
|
<span class="type"><a href="qvariant.html">QVariant</a></span>(database<span class="operator">.</span>italic(family<span class="operator">,</span> style)));
|
|
}
|
|
}
|
|
}
|
|
|
|
<span class="type">void</span> MainWindow<span class="operator">::</span>on_clearAction_triggered()
|
|
{
|
|
<span class="type"><a href="qtreewidgetitem.html">QTreeWidgetItem</a></span> <span class="operator">*</span>currentItem <span class="operator">=</span> fontTree<span class="operator">-</span><span class="operator">></span>currentItem();
|
|
foreach (<span class="type"><a href="qtreewidgetitem.html">QTreeWidgetItem</a></span> <span class="operator">*</span>item<span class="operator">,</span> fontTree<span class="operator">-</span><span class="operator">></span>selectedItems())
|
|
fontTree<span class="operator">-</span><span class="operator">></span>setItemSelected(item<span class="operator">,</span> <span class="keyword">false</span>);
|
|
fontTree<span class="operator">-</span><span class="operator">></span>setItemSelected(currentItem<span class="operator">,</span> <span class="keyword">true</span>);
|
|
}
|
|
|
|
<span class="type">void</span> MainWindow<span class="operator">::</span>on_markAction_triggered()
|
|
{
|
|
markUnmarkFonts(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>Checked);
|
|
}
|
|
|
|
<span class="type">void</span> MainWindow<span class="operator">::</span>on_unmarkAction_triggered()
|
|
{
|
|
markUnmarkFonts(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>Unchecked);
|
|
}
|
|
|
|
<span class="type">void</span> MainWindow<span class="operator">::</span>markUnmarkFonts(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>CheckState state)
|
|
{
|
|
<span class="type"><a href="qlist.html">QList</a></span><span class="operator"><</span><span class="type"><a href="qtreewidgetitem.html">QTreeWidgetItem</a></span> <span class="operator">*</span><span class="operator">></span> items <span class="operator">=</span> fontTree<span class="operator">-</span><span class="operator">></span>selectedItems();
|
|
foreach (<span class="type"><a href="qtreewidgetitem.html">QTreeWidgetItem</a></span> <span class="operator">*</span>item<span class="operator">,</span> items) {
|
|
<span class="keyword">if</span> (item<span class="operator">-</span><span class="operator">></span>checkState(<span class="number">0</span>) <span class="operator">!</span><span class="operator">=</span> state)
|
|
item<span class="operator">-</span><span class="operator">></span>setCheckState(<span class="number">0</span><span class="operator">,</span> state);
|
|
}
|
|
}
|
|
|
|
<span class="type">void</span> MainWindow<span class="operator">::</span>showFont(<span class="type"><a href="qtreewidgetitem.html">QTreeWidgetItem</a></span> <span class="operator">*</span>item)
|
|
{
|
|
<span class="keyword">if</span> (<span class="operator">!</span>item)
|
|
<span class="keyword">return</span>;
|
|
|
|
<span class="type"><a href="qstring.html">QString</a></span> family;
|
|
<span class="type"><a href="qstring.html">QString</a></span> style;
|
|
<span class="type">int</span> weight;
|
|
<span class="type">bool</span> italic;
|
|
|
|
<span class="keyword">if</span> (item<span class="operator">-</span><span class="operator">></span>parent()) {
|
|
family <span class="operator">=</span> item<span class="operator">-</span><span class="operator">></span>parent()<span class="operator">-</span><span class="operator">></span>text(<span class="number">0</span>);
|
|
style <span class="operator">=</span> item<span class="operator">-</span><span class="operator">></span>text(<span class="number">0</span>);
|
|
weight <span class="operator">=</span> item<span class="operator">-</span><span class="operator">></span>data(<span class="number">0</span><span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>UserRole)<span class="operator">.</span>toInt();
|
|
italic <span class="operator">=</span> item<span class="operator">-</span><span class="operator">></span>data(<span class="number">0</span><span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>UserRole <span class="operator">+</span> <span class="number">1</span>)<span class="operator">.</span>toBool();
|
|
} <span class="keyword">else</span> {
|
|
family <span class="operator">=</span> item<span class="operator">-</span><span class="operator">></span>text(<span class="number">0</span>);
|
|
style <span class="operator">=</span> item<span class="operator">-</span><span class="operator">></span>child(<span class="number">0</span>)<span class="operator">-</span><span class="operator">></span>text(<span class="number">0</span>);
|
|
weight <span class="operator">=</span> item<span class="operator">-</span><span class="operator">></span>child(<span class="number">0</span>)<span class="operator">-</span><span class="operator">></span>data(<span class="number">0</span><span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>UserRole)<span class="operator">.</span>toInt();
|
|
italic <span class="operator">=</span> item<span class="operator">-</span><span class="operator">></span>child(<span class="number">0</span>)<span class="operator">-</span><span class="operator">></span>data(<span class="number">0</span><span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>UserRole <span class="operator">+</span> <span class="number">1</span>)<span class="operator">.</span>toBool();
|
|
}
|
|
|
|
<span class="type"><a href="qstring.html">QString</a></span> oldText <span class="operator">=</span> textEdit<span class="operator">-</span><span class="operator">></span>toPlainText()<span class="operator">.</span>trimmed();
|
|
<span class="type">bool</span> modified <span class="operator">=</span> textEdit<span class="operator">-</span><span class="operator">></span>document()<span class="operator">-</span><span class="operator">></span>isModified();
|
|
textEdit<span class="operator">-</span><span class="operator">></span>clear();
|
|
<span class="preprocessor">#if defined(Q_OS_SYMBIAN)</span>
|
|
textEdit<span class="operator">-</span><span class="operator">></span>document()<span class="operator">-</span><span class="operator">></span>setDefaultFont(<span class="type"><a href="qfont.html">QFont</a></span>(family<span class="operator">,</span> <span class="number">10</span><span class="operator">,</span> weight<span class="operator">,</span> italic));
|
|
<span class="preprocessor">#else</span>
|
|
textEdit<span class="operator">-</span><span class="operator">></span>document()<span class="operator">-</span><span class="operator">></span>setDefaultFont(<span class="type"><a href="qfont.html">QFont</a></span>(family<span class="operator">,</span> <span class="number">32</span><span class="operator">,</span> weight<span class="operator">,</span> italic));
|
|
<span class="preprocessor">#endif</span>
|
|
|
|
<span class="type"><a href="qtextcursor.html">QTextCursor</a></span> cursor <span class="operator">=</span> textEdit<span class="operator">-</span><span class="operator">></span>textCursor();
|
|
<span class="type"><a href="qtextblockformat.html">QTextBlockFormat</a></span> blockFormat;
|
|
blockFormat<span class="operator">.</span>setAlignment(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>AlignCenter);
|
|
cursor<span class="operator">.</span>insertBlock(blockFormat);
|
|
|
|
<span class="keyword">if</span> (modified)
|
|
cursor<span class="operator">.</span>insertText(<span class="type"><a href="qstring.html">QString</a></span>(oldText));
|
|
<span class="keyword">else</span>
|
|
cursor<span class="operator">.</span>insertText(<span class="type"><a href="qstring.html">QString</a></span>(<span class="string">"%1 %2"</span>)<span class="operator">.</span>arg(family)<span class="operator">.</span>arg(style));
|
|
|
|
textEdit<span class="operator">-</span><span class="operator">></span>document()<span class="operator">-</span><span class="operator">></span>setModified(modified);
|
|
}
|
|
|
|
<span class="type">void</span> MainWindow<span class="operator">::</span>updateStyles(<span class="type"><a href="qtreewidgetitem.html">QTreeWidgetItem</a></span> <span class="operator">*</span>item<span class="operator">,</span> <span class="type">int</span> column)
|
|
{
|
|
<span class="keyword">if</span> (<span class="operator">!</span>item <span class="operator">|</span><span class="operator">|</span> column <span class="operator">!</span><span class="operator">=</span> <span class="number">0</span>)
|
|
<span class="keyword">return</span>;
|
|
|
|
<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>CheckState state <span class="operator">=</span> item<span class="operator">-</span><span class="operator">></span>checkState(<span class="number">0</span>);
|
|
<span class="type"><a href="qtreewidgetitem.html">QTreeWidgetItem</a></span> <span class="operator">*</span>parent <span class="operator">=</span> item<span class="operator">-</span><span class="operator">></span>parent();
|
|
|
|
<span class="keyword">if</span> (parent) {
|
|
|
|
<span class="comment">// Only count style items.</span>
|
|
<span class="keyword">if</span> (state <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>Checked)
|
|
<span class="operator">+</span><span class="operator">+</span>markedCount;
|
|
<span class="keyword">else</span>
|
|
<span class="operator">-</span><span class="operator">-</span>markedCount;
|
|
|
|
<span class="keyword">if</span> (state <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>Checked <span class="operator">&</span><span class="operator">&</span>
|
|
parent<span class="operator">-</span><span class="operator">></span>checkState(<span class="number">0</span>) <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>Unchecked) {
|
|
<span class="comment">// Mark parent items when child items are checked.</span>
|
|
parent<span class="operator">-</span><span class="operator">></span>setCheckState(<span class="number">0</span><span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>Checked);
|
|
|
|
} <span class="keyword">else</span> <span class="keyword">if</span> (state <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>Unchecked <span class="operator">&</span><span class="operator">&</span>
|
|
parent<span class="operator">-</span><span class="operator">></span>checkState(<span class="number">0</span>) <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>Checked) {
|
|
|
|
<span class="type">bool</span> marked <span class="operator">=</span> <span class="keyword">false</span>;
|
|
<span class="keyword">for</span> (<span class="type">int</span> row <span class="operator">=</span> <span class="number">0</span>; row <span class="operator"><</span> parent<span class="operator">-</span><span class="operator">></span>childCount(); <span class="operator">+</span><span class="operator">+</span>row) {
|
|
<span class="keyword">if</span> (parent<span class="operator">-</span><span class="operator">></span>child(row)<span class="operator">-</span><span class="operator">></span>checkState(<span class="number">0</span>) <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>Checked) {
|
|
marked <span class="operator">=</span> <span class="keyword">true</span>;
|
|
<span class="keyword">break</span>;
|
|
}
|
|
}
|
|
<span class="comment">// Unmark parent items when all child items are unchecked.</span>
|
|
<span class="keyword">if</span> (<span class="operator">!</span>marked)
|
|
parent<span class="operator">-</span><span class="operator">></span>setCheckState(<span class="number">0</span><span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>Unchecked);
|
|
}
|
|
} <span class="keyword">else</span> {
|
|
<span class="type">int</span> row;
|
|
<span class="type">int</span> number <span class="operator">=</span> <span class="number">0</span>;
|
|
<span class="keyword">for</span> (row <span class="operator">=</span> <span class="number">0</span>; row <span class="operator"><</span> item<span class="operator">-</span><span class="operator">></span>childCount(); <span class="operator">+</span><span class="operator">+</span>row) {
|
|
<span class="keyword">if</span> (item<span class="operator">-</span><span class="operator">></span>child(row)<span class="operator">-</span><span class="operator">></span>checkState(<span class="number">0</span>) <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>Checked)
|
|
<span class="operator">+</span><span class="operator">+</span>number;
|
|
}
|
|
|
|
<span class="comment">// Mark/unmark all child items when marking/unmarking top-level</span>
|
|
<span class="comment">// items.</span>
|
|
<span class="keyword">if</span> (state <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>Checked <span class="operator">&</span><span class="operator">&</span> number <span class="operator">=</span><span class="operator">=</span> <span class="number">0</span>) {
|
|
<span class="keyword">for</span> (row <span class="operator">=</span> <span class="number">0</span>; row <span class="operator"><</span> item<span class="operator">-</span><span class="operator">></span>childCount(); <span class="operator">+</span><span class="operator">+</span>row) {
|
|
<span class="keyword">if</span> (item<span class="operator">-</span><span class="operator">></span>child(row)<span class="operator">-</span><span class="operator">></span>checkState(<span class="number">0</span>) <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>Unchecked)
|
|
item<span class="operator">-</span><span class="operator">></span>child(row)<span class="operator">-</span><span class="operator">></span>setCheckState(<span class="number">0</span><span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>Checked);
|
|
}
|
|
} <span class="keyword">else</span> <span class="keyword">if</span> (state <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>Unchecked <span class="operator">&</span><span class="operator">&</span> number <span class="operator">></span> <span class="number">0</span>) {
|
|
<span class="keyword">for</span> (row <span class="operator">=</span> <span class="number">0</span>; row <span class="operator"><</span> item<span class="operator">-</span><span class="operator">></span>childCount(); <span class="operator">+</span><span class="operator">+</span>row) {
|
|
<span class="keyword">if</span> (item<span class="operator">-</span><span class="operator">></span>child(row)<span class="operator">-</span><span class="operator">></span>checkState(<span class="number">0</span>) <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>Checked)
|
|
item<span class="operator">-</span><span class="operator">></span>child(row)<span class="operator">-</span><span class="operator">></span>setCheckState(<span class="number">0</span><span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>Unchecked);
|
|
}
|
|
}
|
|
}
|
|
|
|
printAction<span class="operator">-</span><span class="operator">></span>setEnabled(markedCount <span class="operator">></span> <span class="number">0</span>);
|
|
printPreviewAction<span class="operator">-</span><span class="operator">></span>setEnabled(markedCount <span class="operator">></span> <span class="number">0</span>);
|
|
}
|
|
|
|
<span class="type"><a href="qmap.html">QMap</a></span><span class="operator"><</span><span class="type"><a href="qstring.html">QString</a></span><span class="operator">,</span> StyleItems<span class="operator">></span> MainWindow<span class="operator">::</span>currentPageMap()
|
|
{
|
|
<span class="type"><a href="qmap.html">QMap</a></span><span class="operator"><</span><span class="type"><a href="qstring.html">QString</a></span><span class="operator">,</span> StyleItems<span class="operator">></span> pageMap;
|
|
|
|
<span class="keyword">for</span> (<span class="type">int</span> row <span class="operator">=</span> <span class="number">0</span>; row <span class="operator"><</span> fontTree<span class="operator">-</span><span class="operator">></span>topLevelItemCount(); <span class="operator">+</span><span class="operator">+</span>row) {
|
|
<span class="type"><a href="qtreewidgetitem.html">QTreeWidgetItem</a></span> <span class="operator">*</span>familyItem <span class="operator">=</span> fontTree<span class="operator">-</span><span class="operator">></span>topLevelItem(row);
|
|
<span class="type"><a href="qstring.html">QString</a></span> family;
|
|
|
|
<span class="keyword">if</span> (familyItem<span class="operator">-</span><span class="operator">></span>checkState(<span class="number">0</span>) <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>Checked) {
|
|
family <span class="operator">=</span> familyItem<span class="operator">-</span><span class="operator">></span>text(<span class="number">0</span>);
|
|
pageMap<span class="operator">[</span>family<span class="operator">]</span> <span class="operator">=</span> StyleItems();
|
|
}
|
|
|
|
<span class="keyword">for</span> (<span class="type">int</span> childRow <span class="operator">=</span> <span class="number">0</span>; childRow <span class="operator"><</span> familyItem<span class="operator">-</span><span class="operator">></span>childCount(); <span class="operator">+</span><span class="operator">+</span>childRow) {
|
|
<span class="type"><a href="qtreewidgetitem.html">QTreeWidgetItem</a></span> <span class="operator">*</span>styleItem <span class="operator">=</span> familyItem<span class="operator">-</span><span class="operator">></span>child(childRow);
|
|
<span class="keyword">if</span> (styleItem<span class="operator">-</span><span class="operator">></span>checkState(<span class="number">0</span>) <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>Checked)
|
|
pageMap<span class="operator">[</span>family<span class="operator">]</span><span class="operator">.</span>append(styleItem);
|
|
}
|
|
}
|
|
|
|
<span class="keyword">return</span> pageMap;
|
|
}
|
|
|
|
<span class="preprocessor">#ifndef QT_NO_PRINTER</span>
|
|
<span class="type">void</span> MainWindow<span class="operator">::</span>on_printAction_triggered()
|
|
{
|
|
pageMap <span class="operator">=</span> currentPageMap();
|
|
|
|
<span class="keyword">if</span> (pageMap<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"><a href="qprinter.html">QPrinter</a></span> printer(<span class="type"><a href="qprinter.html">QPrinter</a></span><span class="operator">::</span>HighResolution);
|
|
<span class="type"><a href="qprintdialog.html">QPrintDialog</a></span> dialog(<span class="operator">&</span>printer<span class="operator">,</span> <span class="keyword">this</span>);
|
|
<span class="keyword">if</span> (dialog<span class="operator">.</span>exec() <span class="operator">!</span><span class="operator">=</span> <span class="type"><a href="qdialog.html">QDialog</a></span><span class="operator">::</span>Accepted)
|
|
<span class="keyword">return</span>;
|
|
|
|
<span class="type">int</span> from <span class="operator">=</span> printer<span class="operator">.</span>fromPage();
|
|
<span class="type">int</span> to <span class="operator">=</span> printer<span class="operator">.</span>toPage();
|
|
<span class="keyword">if</span> (from <span class="operator"><</span><span class="operator">=</span> <span class="number">0</span> <span class="operator">&</span><span class="operator">&</span> to <span class="operator"><</span><span class="operator">=</span> <span class="number">0</span>)
|
|
printer<span class="operator">.</span>setFromTo(<span class="number">1</span><span class="operator">,</span> pageMap<span class="operator">.</span>keys()<span class="operator">.</span>count());
|
|
|
|
printDocument(<span class="operator">&</span>printer);
|
|
}
|
|
|
|
<span class="type">void</span> MainWindow<span class="operator">::</span>printDocument(<span class="type"><a href="qprinter.html">QPrinter</a></span> <span class="operator">*</span>printer)
|
|
{
|
|
printer<span class="operator">-</span><span class="operator">></span>setFromTo(<span class="number">1</span><span class="operator">,</span> pageMap<span class="operator">.</span>count());
|
|
|
|
<span class="type"><a href="qprogressdialog.html">QProgressDialog</a></span> progress(tr(<span class="string">"Preparing font samples..."</span>)<span class="operator">,</span> tr(<span class="string">"&Cancel"</span>)<span class="operator">,</span>
|
|
<span class="number">0</span><span class="operator">,</span> pageMap<span class="operator">.</span>count()<span class="operator">,</span> <span class="keyword">this</span>);
|
|
progress<span class="operator">.</span>setWindowModality(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>ApplicationModal);
|
|
progress<span class="operator">.</span>setWindowTitle(tr(<span class="string">"Font Sampler"</span>));
|
|
progress<span class="operator">.</span>setMinimum(printer<span class="operator">-</span><span class="operator">></span>fromPage() <span class="operator">-</span> <span class="number">1</span>);
|
|
progress<span class="operator">.</span>setMaximum(printer<span class="operator">-</span><span class="operator">></span>toPage());
|
|
|
|
<span class="type"><a href="qpainter.html">QPainter</a></span> painter;
|
|
painter<span class="operator">.</span>begin(printer);
|
|
<span class="type">bool</span> firstPage <span class="operator">=</span> <span class="keyword">true</span>;
|
|
|
|
<span class="keyword">for</span> (<span class="type">int</span> page <span class="operator">=</span> printer<span class="operator">-</span><span class="operator">></span>fromPage(); page <span class="operator"><</span><span class="operator">=</span> printer<span class="operator">-</span><span class="operator">></span>toPage(); <span class="operator">+</span><span class="operator">+</span>page) {
|
|
|
|
<span class="keyword">if</span> (<span class="operator">!</span>firstPage)
|
|
printer<span class="operator">-</span><span class="operator">></span>newPage();
|
|
|
|
qApp<span class="operator">-</span><span class="operator">></span>processEvents();
|
|
<span class="keyword">if</span> (progress<span class="operator">.</span>wasCanceled())
|
|
<span class="keyword">break</span>;
|
|
|
|
printPage(page <span class="operator">-</span> <span class="number">1</span><span class="operator">,</span> <span class="operator">&</span>painter<span class="operator">,</span> printer);
|
|
progress<span class="operator">.</span>setValue(page);
|
|
firstPage <span class="operator">=</span> <span class="keyword">false</span>;
|
|
}
|
|
|
|
painter<span class="operator">.</span>end();
|
|
}
|
|
|
|
<span class="type">void</span> MainWindow<span class="operator">::</span>on_printPreviewAction_triggered()
|
|
{
|
|
pageMap <span class="operator">=</span> currentPageMap();
|
|
|
|
<span class="keyword">if</span> (pageMap<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"><a href="qprinter.html">QPrinter</a></span> printer(<span class="type"><a href="qprinter.html">QPrinter</a></span><span class="operator">::</span>HighResolution);
|
|
<span class="type"><a href="qprintpreviewdialog.html">QPrintPreviewDialog</a></span> preview(<span class="operator">&</span>printer<span class="operator">,</span> <span class="keyword">this</span>);
|
|
connect(<span class="operator">&</span>preview<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="keyword">this</span><span class="operator">,</span> SLOT(printDocument(<span class="type"><a href="qprinter.html">QPrinter</a></span><span class="operator">*</span>)));
|
|
preview<span class="operator">.</span>exec();
|
|
}
|
|
|
|
<span class="type">void</span> MainWindow<span class="operator">::</span>printPage(<span class="type">int</span> index<span class="operator">,</span> <span class="type"><a href="qpainter.html">QPainter</a></span> <span class="operator">*</span>painter<span class="operator">,</span> <span class="type"><a href="qprinter.html">QPrinter</a></span> <span class="operator">*</span>printer)
|
|
{
|
|
<span class="type"><a href="qstring.html">QString</a></span> family <span class="operator">=</span> pageMap<span class="operator">.</span>keys()<span class="operator">[</span>index<span class="operator">]</span>;
|
|
StyleItems items <span class="operator">=</span> pageMap<span class="operator">[</span>family<span class="operator">]</span>;
|
|
|
|
<span class="comment">// Find the dimensions of the text on each page.</span>
|
|
<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> width <span class="operator">=</span> <span class="number">0.0</span>;
|
|
<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> height <span class="operator">=</span> <span class="number">0.0</span>;
|
|
foreach (<span class="type"><a href="qtreewidgetitem.html">QTreeWidgetItem</a></span> <span class="operator">*</span>item<span class="operator">,</span> items) {
|
|
<span class="type"><a href="qstring.html">QString</a></span> style <span class="operator">=</span> item<span class="operator">-</span><span class="operator">></span>text(<span class="number">0</span>);
|
|
<span class="type">int</span> weight <span class="operator">=</span> item<span class="operator">-</span><span class="operator">></span>data(<span class="number">0</span><span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>UserRole)<span class="operator">.</span>toInt();
|
|
<span class="type">bool</span> italic <span class="operator">=</span> item<span class="operator">-</span><span class="operator">></span>data(<span class="number">0</span><span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>UserRole <span class="operator">+</span> <span class="number">1</span>)<span class="operator">.</span>toBool();
|
|
|
|
<span class="comment">// Calculate the maximum width and total height of the text.</span>
|
|
foreach (<span class="type">int</span> size<span class="operator">,</span> sampleSizes) {
|
|
<span class="type"><a href="qfont.html">QFont</a></span> font(family<span class="operator">,</span> size<span class="operator">,</span> weight<span class="operator">,</span> italic);
|
|
font <span class="operator">=</span> <span class="type"><a href="qfont.html">QFont</a></span>(font<span class="operator">,</span> painter<span class="operator">-</span><span class="operator">></span>device());
|
|
<span class="type"><a href="qfontmetricsf.html">QFontMetricsF</a></span> fontMetrics(font);
|
|
<span class="type"><a href="qrectf.html">QRectF</a></span> rect <span class="operator">=</span> fontMetrics<span class="operator">.</span>boundingRect(
|
|
<span class="type"><a href="qstring.html">QString</a></span>(<span class="string">"%1 %2"</span>)<span class="operator">.</span>arg(family)<span class="operator">.</span>arg(style));
|
|
width <span class="operator">=</span> <a href="qtglobal.html#qMax">qMax</a>(rect<span class="operator">.</span>width()<span class="operator">,</span> width);
|
|
height <span class="operator">+</span><span class="operator">=</span> rect<span class="operator">.</span>height();
|
|
}
|
|
}
|
|
|
|
<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> xScale <span class="operator">=</span> printer<span class="operator">-</span><span class="operator">></span>pageRect()<span class="operator">.</span>width() <span class="operator">/</span> width;
|
|
<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> yScale <span class="operator">=</span> printer<span class="operator">-</span><span class="operator">></span>pageRect()<span class="operator">.</span>height() <span class="operator">/</span> height;
|
|
<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> scale <span class="operator">=</span> <a href="qtglobal.html#qMin">qMin</a>(xScale<span class="operator">,</span> yScale);
|
|
|
|
<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> remainingHeight <span class="operator">=</span> printer<span class="operator">-</span><span class="operator">></span>pageRect()<span class="operator">.</span>height()<span class="operator">/</span>scale <span class="operator">-</span> height;
|
|
<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> spaceHeight <span class="operator">=</span> (remainingHeight<span class="operator">/</span><span class="number">4.0</span>) <span class="operator">/</span> (items<span class="operator">.</span>count() <span class="operator">+</span> <span class="number">1</span>);
|
|
<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> interLineHeight <span class="operator">=</span> (remainingHeight<span class="operator">/</span><span class="number">4.0</span>) <span class="operator">/</span> (sampleSizes<span class="operator">.</span>count() <span class="operator">*</span> items<span class="operator">.</span>count());
|
|
|
|
painter<span class="operator">-</span><span class="operator">></span>save();
|
|
painter<span class="operator">-</span><span class="operator">></span>translate(printer<span class="operator">-</span><span class="operator">></span>pageRect()<span class="operator">.</span>width()<span class="operator">/</span><span class="number">2.0</span><span class="operator">,</span> printer<span class="operator">-</span><span class="operator">></span>pageRect()<span class="operator">.</span>height()<span class="operator">/</span><span class="number">2.0</span>);
|
|
painter<span class="operator">-</span><span class="operator">></span>scale(scale<span class="operator">,</span> scale);
|
|
painter<span class="operator">-</span><span class="operator">></span>setBrush(<span class="type"><a href="qbrush.html">QBrush</a></span>(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>black));
|
|
|
|
<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> x <span class="operator">=</span> <span class="operator">-</span>width<span class="operator">/</span><span class="number">2.0</span>;
|
|
<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> y <span class="operator">=</span> <span class="operator">-</span>height<span class="operator">/</span><span class="number">2.0</span> <span class="operator">-</span> remainingHeight<span class="operator">/</span><span class="number">4.0</span> <span class="operator">+</span> spaceHeight;
|
|
|
|
foreach (<span class="type"><a href="qtreewidgetitem.html">QTreeWidgetItem</a></span> <span class="operator">*</span>item<span class="operator">,</span> items) {
|
|
<span class="type"><a href="qstring.html">QString</a></span> style <span class="operator">=</span> item<span class="operator">-</span><span class="operator">></span>text(<span class="number">0</span>);
|
|
<span class="type">int</span> weight <span class="operator">=</span> item<span class="operator">-</span><span class="operator">></span>data(<span class="number">0</span><span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>UserRole)<span class="operator">.</span>toInt();
|
|
<span class="type">bool</span> italic <span class="operator">=</span> item<span class="operator">-</span><span class="operator">></span>data(<span class="number">0</span><span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>UserRole <span class="operator">+</span> <span class="number">1</span>)<span class="operator">.</span>toBool();
|
|
|
|
<span class="comment">// Draw each line of text.</span>
|
|
foreach (<span class="type">int</span> size<span class="operator">,</span> sampleSizes) {
|
|
<span class="type"><a href="qfont.html">QFont</a></span> font(family<span class="operator">,</span> size<span class="operator">,</span> weight<span class="operator">,</span> italic);
|
|
font <span class="operator">=</span> <span class="type"><a href="qfont.html">QFont</a></span>(font<span class="operator">,</span> painter<span class="operator">-</span><span class="operator">></span>device());
|
|
<span class="type"><a href="qfontmetricsf.html">QFontMetricsF</a></span> fontMetrics(font);
|
|
<span class="type"><a href="qrectf.html">QRectF</a></span> rect <span class="operator">=</span> fontMetrics<span class="operator">.</span>boundingRect(<span class="type"><a href="qstring.html">QString</a></span>(<span class="string">"%1 %2"</span>)<span class="operator">.</span>arg(
|
|
font<span class="operator">.</span>family())<span class="operator">.</span>arg(style));
|
|
y <span class="operator">+</span><span class="operator">=</span> rect<span class="operator">.</span>height();
|
|
painter<span class="operator">-</span><span class="operator">></span>setFont(font);
|
|
painter<span class="operator">-</span><span class="operator">></span>drawText(<span class="type"><a href="qpointf.html">QPointF</a></span>(x<span class="operator">,</span> y)<span class="operator">,</span>
|
|
<span class="type"><a href="qstring.html">QString</a></span>(<span class="string">"%1 %2"</span>)<span class="operator">.</span>arg(family)<span class="operator">.</span>arg(style));
|
|
y <span class="operator">+</span><span class="operator">=</span> interLineHeight;
|
|
}
|
|
y <span class="operator">+</span><span class="operator">=</span> spaceHeight;
|
|
}
|
|
|
|
painter<span class="operator">-</span><span class="operator">></span>restore();
|
|
}
|
|
<span class="preprocessor">#endif</span></pre>
|
|
</div>
|
|
<!-- @@@painting/fontsampler/mainwindow.cpp -->
|
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</div>
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</div>
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</div>
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<span></span>
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<div class="footer">
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<p>
|
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<acronym title="Copyright">©</acronym> 2015 The Qt Company Ltd.
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Documentation contributions included herein are the copyrights of
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their respective owners.</p>
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<br />
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<p>
|
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The documentation provided herein is licensed under the terms of the
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<a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation
|
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License version 1.3</a> as published by the Free Software Foundation.</p>
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<p>
|
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Documentation sources may be obtained from <a href="http://www.qt-project.org">
|
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www.qt-project.org</a>.</p>
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<br />
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<p>
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Qt and respective logos are trademarks of The Qt Company Ltd
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in Finland and/or other countries worldwide. All other trademarks are property
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of their respective owners. <a title="Privacy Policy"
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href="http://en.gitorious.org/privacy_policy/">Privacy Policy</a></p>
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