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<h1 class="title">mainwindow.cpp Example File</h1>
<span class="subtitle">graphicsview/diagramscene/mainwindow.cpp</span>
<!-- $$$graphicsview/diagramscene/mainwindow.cpp-description -->
<div class="descr"> <a name="details"></a>
<pre class="cpp">
<span class="comment">/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** BSD License Usage
** Alternatively, you may use this file under the terms of the BSD license
** as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of The Qt Company Ltd nor the names of its
** contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/</span>
<span class="preprocessor">#include "arrow.h"</span>
<span class="preprocessor">#include "diagramitem.h"</span>
<span class="preprocessor">#include "diagramscene.h"</span>
<span class="preprocessor">#include "diagramtextitem.h"</span>
<span class="preprocessor">#include "mainwindow.h"</span>
<span class="preprocessor">#include <QtWidgets></span>
<span class="keyword">const</span> <span class="type">int</span> InsertTextButton <span class="operator">=</span> <span class="number">10</span>;
MainWindow<span class="operator">::</span>MainWindow()
{
createActions();
createToolBox();
createMenus();
scene <span class="operator">=</span> <span class="keyword">new</span> DiagramScene(itemMenu<span class="operator">,</span> <span class="keyword">this</span>);
scene<span class="operator">-</span><span class="operator">></span>setSceneRect(<span class="type"><a href="../qtcore/qrectf.html">QRectF</a></span>(<span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">5000</span><span class="operator">,</span> <span class="number">5000</span>));
connect(scene<span class="operator">,</span> SIGNAL(itemInserted(DiagramItem<span class="operator">*</span>))<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> SLOT(itemInserted(DiagramItem<span class="operator">*</span>)));
connect(scene<span class="operator">,</span> SIGNAL(textInserted(<span class="type"><a href="qgraphicstextitem.html">QGraphicsTextItem</a></span><span class="operator">*</span>))<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> SLOT(textInserted(<span class="type"><a href="qgraphicstextitem.html">QGraphicsTextItem</a></span><span class="operator">*</span>)));
connect(scene<span class="operator">,</span> SIGNAL(itemSelected(<span class="type"><a href="qgraphicsitem.html">QGraphicsItem</a></span><span class="operator">*</span>))<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> SLOT(itemSelected(<span class="type"><a href="qgraphicsitem.html">QGraphicsItem</a></span><span class="operator">*</span>)));
createToolbars();
<span class="type"><a href="qhboxlayout.html">QHBoxLayout</a></span> <span class="operator">*</span>layout <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qhboxlayout.html">QHBoxLayout</a></span>;
layout<span class="operator">-</span><span class="operator">></span>addWidget(toolBox);
view <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qgraphicsview.html">QGraphicsView</a></span>(scene);
layout<span class="operator">-</span><span class="operator">></span>addWidget(view);
<span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>widget <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qwidget.html">QWidget</a></span>;
widget<span class="operator">-</span><span class="operator">></span>setLayout(layout);
setCentralWidget(widget);
setWindowTitle(tr(<span class="string">"Diagramscene"</span>));
setUnifiedTitleAndToolBarOnMac(<span class="keyword">true</span>);
}
<span class="type">void</span> MainWindow<span class="operator">::</span>backgroundButtonGroupClicked(<span class="type"><a href="qabstractbutton.html">QAbstractButton</a></span> <span class="operator">*</span>button)
{
<span class="type"><a href="../qtcore/qlist.html">QList</a></span><span class="operator"><</span><span class="type"><a href="qabstractbutton.html">QAbstractButton</a></span> <span class="operator">*</span><span class="operator">></span> buttons <span class="operator">=</span> backgroundButtonGroup<span class="operator">-</span><span class="operator">></span>buttons();
foreach (<span class="type"><a href="qabstractbutton.html">QAbstractButton</a></span> <span class="operator">*</span>myButton<span class="operator">,</span> buttons) {
<span class="keyword">if</span> (myButton <span class="operator">!</span><span class="operator">=</span> button)
button<span class="operator">-</span><span class="operator">></span>setChecked(<span class="keyword">false</span>);
}
<span class="type"><a href="../qtcore/qstring.html">QString</a></span> text <span class="operator">=</span> button<span class="operator">-</span><span class="operator">></span>text();
<span class="keyword">if</span> (text <span class="operator">=</span><span class="operator">=</span> tr(<span class="string">"Blue Grid"</span>))
scene<span class="operator">-</span><span class="operator">></span>setBackgroundBrush(<span class="type"><a href="../qtgui/qpixmap.html">QPixmap</a></span>(<span class="string">":/images/background1.png"</span>));
<span class="keyword">else</span> <span class="keyword">if</span> (text <span class="operator">=</span><span class="operator">=</span> tr(<span class="string">"White Grid"</span>))
scene<span class="operator">-</span><span class="operator">></span>setBackgroundBrush(<span class="type"><a href="../qtgui/qpixmap.html">QPixmap</a></span>(<span class="string">":/images/background2.png"</span>));
<span class="keyword">else</span> <span class="keyword">if</span> (text <span class="operator">=</span><span class="operator">=</span> tr(<span class="string">"Gray Grid"</span>))
scene<span class="operator">-</span><span class="operator">></span>setBackgroundBrush(<span class="type"><a href="../qtgui/qpixmap.html">QPixmap</a></span>(<span class="string">":/images/background3.png"</span>));
<span class="keyword">else</span>
scene<span class="operator">-</span><span class="operator">></span>setBackgroundBrush(<span class="type"><a href="../qtgui/qpixmap.html">QPixmap</a></span>(<span class="string">":/images/background4.png"</span>));
scene<span class="operator">-</span><span class="operator">></span>update();
view<span class="operator">-</span><span class="operator">></span>update();
}
<span class="type">void</span> MainWindow<span class="operator">::</span>buttonGroupClicked(<span class="type">int</span> id)
{
<span class="type"><a href="../qtcore/qlist.html">QList</a></span><span class="operator"><</span><span class="type"><a href="qabstractbutton.html">QAbstractButton</a></span> <span class="operator">*</span><span class="operator">></span> buttons <span class="operator">=</span> buttonGroup<span class="operator">-</span><span class="operator">></span>buttons();
foreach (<span class="type"><a href="qabstractbutton.html">QAbstractButton</a></span> <span class="operator">*</span>button<span class="operator">,</span> buttons) {
<span class="keyword">if</span> (buttonGroup<span class="operator">-</span><span class="operator">></span>button(id) <span class="operator">!</span><span class="operator">=</span> button)
button<span class="operator">-</span><span class="operator">></span>setChecked(<span class="keyword">false</span>);
}
<span class="keyword">if</span> (id <span class="operator">=</span><span class="operator">=</span> InsertTextButton) {
scene<span class="operator">-</span><span class="operator">></span>setMode(DiagramScene<span class="operator">::</span>InsertText);
} <span class="keyword">else</span> {
scene<span class="operator">-</span><span class="operator">></span>setItemType(DiagramItem<span class="operator">::</span>DiagramType(id));
scene<span class="operator">-</span><span class="operator">></span>setMode(DiagramScene<span class="operator">::</span>InsertItem);
}
}
<span class="type">void</span> MainWindow<span class="operator">::</span>deleteItem()
{
foreach (<span class="type"><a href="qgraphicsitem.html">QGraphicsItem</a></span> <span class="operator">*</span>item<span class="operator">,</span> scene<span class="operator">-</span><span class="operator">></span>selectedItems()) {
<span class="keyword">if</span> (item<span class="operator">-</span><span class="operator">></span>type() <span class="operator">=</span><span class="operator">=</span> Arrow<span class="operator">::</span>Type) {
scene<span class="operator">-</span><span class="operator">></span>removeItem(item);
Arrow <span class="operator">*</span>arrow <span class="operator">=</span> qgraphicsitem_cast<span class="operator"><</span>Arrow <span class="operator">*</span><span class="operator">></span>(item);
arrow<span class="operator">-</span><span class="operator">></span>startItem()<span class="operator">-</span><span class="operator">></span>removeArrow(arrow);
arrow<span class="operator">-</span><span class="operator">></span>endItem()<span class="operator">-</span><span class="operator">></span>removeArrow(arrow);
<span class="keyword">delete</span> item;
}
}
foreach (<span class="type"><a href="qgraphicsitem.html">QGraphicsItem</a></span> <span class="operator">*</span>item<span class="operator">,</span> scene<span class="operator">-</span><span class="operator">></span>selectedItems()) {
<span class="keyword">if</span> (item<span class="operator">-</span><span class="operator">></span>type() <span class="operator">=</span><span class="operator">=</span> DiagramItem<span class="operator">::</span>Type)
qgraphicsitem_cast<span class="operator"><</span>DiagramItem <span class="operator">*</span><span class="operator">></span>(item)<span class="operator">-</span><span class="operator">></span>removeArrows();
scene<span class="operator">-</span><span class="operator">></span>removeItem(item);
<span class="keyword">delete</span> item;
}
}
<span class="type">void</span> MainWindow<span class="operator">::</span>pointerGroupClicked(<span class="type">int</span>)
{
scene<span class="operator">-</span><span class="operator">></span>setMode(DiagramScene<span class="operator">::</span>Mode(pointerTypeGroup<span class="operator">-</span><span class="operator">></span>checkedId()));
}
<span class="type">void</span> MainWindow<span class="operator">::</span>bringToFront()
{
<span class="keyword">if</span> (scene<span class="operator">-</span><span class="operator">></span>selectedItems()<span class="operator">.</span>isEmpty())
<span class="keyword">return</span>;
<span class="type"><a href="qgraphicsitem.html">QGraphicsItem</a></span> <span class="operator">*</span>selectedItem <span class="operator">=</span> scene<span class="operator">-</span><span class="operator">></span>selectedItems()<span class="operator">.</span>first();
<span class="type"><a href="../qtcore/qlist.html">QList</a></span><span class="operator"><</span><span class="type"><a href="qgraphicsitem.html">QGraphicsItem</a></span> <span class="operator">*</span><span class="operator">></span> overlapItems <span class="operator">=</span> selectedItem<span class="operator">-</span><span class="operator">></span>collidingItems();
<span class="type"><a href="../qtcore/qtglobal.html#qreal-typedef">qreal</a></span> zValue <span class="operator">=</span> <span class="number">0</span>;
foreach (<span class="type"><a href="qgraphicsitem.html">QGraphicsItem</a></span> <span class="operator">*</span>item<span class="operator">,</span> overlapItems) {
<span class="keyword">if</span> (item<span class="operator">-</span><span class="operator">></span>zValue() <span class="operator">></span><span class="operator">=</span> zValue <span class="operator">&</span><span class="operator">&</span> item<span class="operator">-</span><span class="operator">></span>type() <span class="operator">=</span><span class="operator">=</span> DiagramItem<span class="operator">::</span>Type)
zValue <span class="operator">=</span> item<span class="operator">-</span><span class="operator">></span>zValue() <span class="operator">+</span> <span class="number">0.1</span>;
}
selectedItem<span class="operator">-</span><span class="operator">></span>setZValue(zValue);
}
<span class="type">void</span> MainWindow<span class="operator">::</span>sendToBack()
{
<span class="keyword">if</span> (scene<span class="operator">-</span><span class="operator">></span>selectedItems()<span class="operator">.</span>isEmpty())
<span class="keyword">return</span>;
<span class="type"><a href="qgraphicsitem.html">QGraphicsItem</a></span> <span class="operator">*</span>selectedItem <span class="operator">=</span> scene<span class="operator">-</span><span class="operator">></span>selectedItems()<span class="operator">.</span>first();
<span class="type"><a href="../qtcore/qlist.html">QList</a></span><span class="operator"><</span><span class="type"><a href="qgraphicsitem.html">QGraphicsItem</a></span> <span class="operator">*</span><span class="operator">></span> overlapItems <span class="operator">=</span> selectedItem<span class="operator">-</span><span class="operator">></span>collidingItems();
<span class="type"><a href="../qtcore/qtglobal.html#qreal-typedef">qreal</a></span> zValue <span class="operator">=</span> <span class="number">0</span>;
foreach (<span class="type"><a href="qgraphicsitem.html">QGraphicsItem</a></span> <span class="operator">*</span>item<span class="operator">,</span> overlapItems) {
<span class="keyword">if</span> (item<span class="operator">-</span><span class="operator">></span>zValue() <span class="operator"><</span><span class="operator">=</span> zValue <span class="operator">&</span><span class="operator">&</span> item<span class="operator">-</span><span class="operator">></span>type() <span class="operator">=</span><span class="operator">=</span> DiagramItem<span class="operator">::</span>Type)
zValue <span class="operator">=</span> item<span class="operator">-</span><span class="operator">></span>zValue() <span class="operator">-</span> <span class="number">0.1</span>;
}
selectedItem<span class="operator">-</span><span class="operator">></span>setZValue(zValue);
}
<span class="type">void</span> MainWindow<span class="operator">::</span>itemInserted(DiagramItem <span class="operator">*</span>item)
{
pointerTypeGroup<span class="operator">-</span><span class="operator">></span>button(<span class="type">int</span>(DiagramScene<span class="operator">::</span>MoveItem))<span class="operator">-</span><span class="operator">></span>setChecked(<span class="keyword">true</span>);
scene<span class="operator">-</span><span class="operator">></span>setMode(DiagramScene<span class="operator">::</span>Mode(pointerTypeGroup<span class="operator">-</span><span class="operator">></span>checkedId()));
buttonGroup<span class="operator">-</span><span class="operator">></span>button(<span class="type">int</span>(item<span class="operator">-</span><span class="operator">></span>diagramType()))<span class="operator">-</span><span class="operator">></span>setChecked(<span class="keyword">false</span>);
}
<span class="type">void</span> MainWindow<span class="operator">::</span>textInserted(<span class="type"><a href="qgraphicstextitem.html">QGraphicsTextItem</a></span> <span class="operator">*</span>)
{
buttonGroup<span class="operator">-</span><span class="operator">></span>button(InsertTextButton)<span class="operator">-</span><span class="operator">></span>setChecked(<span class="keyword">false</span>);
scene<span class="operator">-</span><span class="operator">></span>setMode(DiagramScene<span class="operator">::</span>Mode(pointerTypeGroup<span class="operator">-</span><span class="operator">></span>checkedId()));
}
<span class="type">void</span> MainWindow<span class="operator">::</span>currentFontChanged(<span class="keyword">const</span> <span class="type"><a href="../qtgui/qfont.html">QFont</a></span> <span class="operator">&</span>)
{
handleFontChange();
}
<span class="type">void</span> MainWindow<span class="operator">::</span>fontSizeChanged(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&</span>)
{
handleFontChange();
}
<span class="type">void</span> MainWindow<span class="operator">::</span>sceneScaleChanged(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&</span>scale)
{
<span class="type">double</span> newScale <span class="operator">=</span> scale<span class="operator">.</span>left(scale<span class="operator">.</span>indexOf(tr(<span class="string">"%"</span>)))<span class="operator">.</span>toDouble() <span class="operator">/</span> <span class="number">100.0</span>;
<span class="type"><a href="../qtgui/qmatrix.html">QMatrix</a></span> oldMatrix <span class="operator">=</span> view<span class="operator">-</span><span class="operator">></span>matrix();
view<span class="operator">-</span><span class="operator">></span>resetMatrix();
view<span class="operator">-</span><span class="operator">></span>translate(oldMatrix<span class="operator">.</span>dx()<span class="operator">,</span> oldMatrix<span class="operator">.</span>dy());
view<span class="operator">-</span><span class="operator">></span>scale(newScale<span class="operator">,</span> newScale);
}
<span class="type">void</span> MainWindow<span class="operator">::</span>textColorChanged()
{
textAction <span class="operator">=</span> qobject_cast<span class="operator"><</span><span class="type"><a href="qaction.html">QAction</a></span> <span class="operator">*</span><span class="operator">></span>(sender());
fontColorToolButton<span class="operator">-</span><span class="operator">></span>setIcon(createColorToolButtonIcon(
<span class="string">":/images/textpointer.png"</span><span class="operator">,</span>
qvariant_cast<span class="operator"><</span><span class="type"><a href="../qtgui/qcolor.html">QColor</a></span><span class="operator">></span>(textAction<span class="operator">-</span><span class="operator">></span>data())));
textButtonTriggered();
}
<span class="type">void</span> MainWindow<span class="operator">::</span>itemColorChanged()
{
fillAction <span class="operator">=</span> qobject_cast<span class="operator"><</span><span class="type"><a href="qaction.html">QAction</a></span> <span class="operator">*</span><span class="operator">></span>(sender());
fillColorToolButton<span class="operator">-</span><span class="operator">></span>setIcon(createColorToolButtonIcon(
<span class="string">":/images/floodfill.png"</span><span class="operator">,</span>
qvariant_cast<span class="operator"><</span><span class="type"><a href="../qtgui/qcolor.html">QColor</a></span><span class="operator">></span>(fillAction<span class="operator">-</span><span class="operator">></span>data())));
fillButtonTriggered();
}
<span class="type">void</span> MainWindow<span class="operator">::</span>lineColorChanged()
{
lineAction <span class="operator">=</span> qobject_cast<span class="operator"><</span><span class="type"><a href="qaction.html">QAction</a></span> <span class="operator">*</span><span class="operator">></span>(sender());
lineColorToolButton<span class="operator">-</span><span class="operator">></span>setIcon(createColorToolButtonIcon(
<span class="string">":/images/linecolor.png"</span><span class="operator">,</span>
qvariant_cast<span class="operator"><</span><span class="type"><a href="../qtgui/qcolor.html">QColor</a></span><span class="operator">></span>(lineAction<span class="operator">-</span><span class="operator">></span>data())));
lineButtonTriggered();
}
<span class="type">void</span> MainWindow<span class="operator">::</span>textButtonTriggered()
{
scene<span class="operator">-</span><span class="operator">></span>setTextColor(qvariant_cast<span class="operator"><</span><span class="type"><a href="../qtgui/qcolor.html">QColor</a></span><span class="operator">></span>(textAction<span class="operator">-</span><span class="operator">></span>data()));
}
<span class="type">void</span> MainWindow<span class="operator">::</span>fillButtonTriggered()
{
scene<span class="operator">-</span><span class="operator">></span>setItemColor(qvariant_cast<span class="operator"><</span><span class="type"><a href="../qtgui/qcolor.html">QColor</a></span><span class="operator">></span>(fillAction<span class="operator">-</span><span class="operator">></span>data()));
}
<span class="type">void</span> MainWindow<span class="operator">::</span>lineButtonTriggered()
{
scene<span class="operator">-</span><span class="operator">></span>setLineColor(qvariant_cast<span class="operator"><</span><span class="type"><a href="../qtgui/qcolor.html">QColor</a></span><span class="operator">></span>(lineAction<span class="operator">-</span><span class="operator">></span>data()));
}
<span class="type">void</span> MainWindow<span class="operator">::</span>handleFontChange()
{
<span class="type"><a href="../qtgui/qfont.html">QFont</a></span> font <span class="operator">=</span> fontCombo<span class="operator">-</span><span class="operator">></span>currentFont();
font<span class="operator">.</span>setPointSize(fontSizeCombo<span class="operator">-</span><span class="operator">></span>currentText()<span class="operator">.</span>toInt());
font<span class="operator">.</span>setWeight(boldAction<span class="operator">-</span><span class="operator">></span>isChecked() <span class="operator">?</span> <span class="type"><a href="../qtgui/qfont.html">QFont</a></span><span class="operator">::</span>Bold : <span class="type"><a href="../qtgui/qfont.html">QFont</a></span><span class="operator">::</span>Normal);
font<span class="operator">.</span>setItalic(italicAction<span class="operator">-</span><span class="operator">></span>isChecked());
font<span class="operator">.</span>setUnderline(underlineAction<span class="operator">-</span><span class="operator">></span>isChecked());
scene<span class="operator">-</span><span class="operator">></span>setFont(font);
}
<span class="type">void</span> MainWindow<span class="operator">::</span>itemSelected(<span class="type"><a href="qgraphicsitem.html">QGraphicsItem</a></span> <span class="operator">*</span>item)
{
DiagramTextItem <span class="operator">*</span>textItem <span class="operator">=</span>
qgraphicsitem_cast<span class="operator"><</span>DiagramTextItem <span class="operator">*</span><span class="operator">></span>(item);
<span class="type"><a href="../qtgui/qfont.html">QFont</a></span> font <span class="operator">=</span> textItem<span class="operator">-</span><span class="operator">></span>font();
fontCombo<span class="operator">-</span><span class="operator">></span>setCurrentFont(font);
fontSizeCombo<span class="operator">-</span><span class="operator">></span>setEditText(<span class="type"><a href="../qtcore/qstring.html">QString</a></span>()<span class="operator">.</span>setNum(font<span class="operator">.</span>pointSize()));
boldAction<span class="operator">-</span><span class="operator">></span>setChecked(font<span class="operator">.</span>weight() <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="../qtgui/qfont.html">QFont</a></span><span class="operator">::</span>Bold);
italicAction<span class="operator">-</span><span class="operator">></span>setChecked(font<span class="operator">.</span>italic());
underlineAction<span class="operator">-</span><span class="operator">></span>setChecked(font<span class="operator">.</span>underline());
}
<span class="type">void</span> MainWindow<span class="operator">::</span>about()
{
<span class="type"><a href="qmessagebox.html">QMessageBox</a></span><span class="operator">::</span>about(<span class="keyword">this</span><span class="operator">,</span> tr(<span class="string">"About Diagram Scene"</span>)<span class="operator">,</span>
tr(<span class="string">"The <b>Diagram Scene</b> example shows "</span>
<span class="string">"use of the graphics framework."</span>));
}
<span class="type">void</span> MainWindow<span class="operator">::</span>createToolBox()
{
buttonGroup <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qbuttongroup.html">QButtonGroup</a></span>(<span class="keyword">this</span>);
buttonGroup<span class="operator">-</span><span class="operator">></span>setExclusive(<span class="keyword">false</span>);
connect(buttonGroup<span class="operator">,</span> SIGNAL(buttonClicked(<span class="type">int</span>))<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> SLOT(buttonGroupClicked(<span class="type">int</span>)));
<span class="type"><a href="qgridlayout.html">QGridLayout</a></span> <span class="operator">*</span>layout <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qgridlayout.html">QGridLayout</a></span>;
layout<span class="operator">-</span><span class="operator">></span>addWidget(createCellWidget(tr(<span class="string">"Conditional"</span>)<span class="operator">,</span> DiagramItem<span class="operator">::</span>Conditional)<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">0</span>);
layout<span class="operator">-</span><span class="operator">></span>addWidget(createCellWidget(tr(<span class="string">"Process"</span>)<span class="operator">,</span> DiagramItem<span class="operator">::</span>Step)<span class="operator">,</span><span class="number">0</span><span class="operator">,</span> <span class="number">1</span>);
layout<span class="operator">-</span><span class="operator">></span>addWidget(createCellWidget(tr(<span class="string">"Input/Output"</span>)<span class="operator">,</span> DiagramItem<span class="operator">::</span>Io)<span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">0</span>);
<span class="type"><a href="qtoolbutton.html">QToolButton</a></span> <span class="operator">*</span>textButton <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtoolbutton.html">QToolButton</a></span>;
textButton<span class="operator">-</span><span class="operator">></span>setCheckable(<span class="keyword">true</span>);
buttonGroup<span class="operator">-</span><span class="operator">></span>addButton(textButton<span class="operator">,</span> InsertTextButton);
textButton<span class="operator">-</span><span class="operator">></span>setIcon(<span class="type"><a href="../qtgui/qicon.html">QIcon</a></span>(<span class="type"><a href="../qtgui/qpixmap.html">QPixmap</a></span>(<span class="string">":/images/textpointer.png"</span>)));
textButton<span class="operator">-</span><span class="operator">></span>setIconSize(<span class="type"><a href="../qtcore/qsize.html">QSize</a></span>(<span class="number">50</span><span class="operator">,</span> <span class="number">50</span>));
<span class="type"><a href="qgridlayout.html">QGridLayout</a></span> <span class="operator">*</span>textLayout <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qgridlayout.html">QGridLayout</a></span>;
textLayout<span class="operator">-</span><span class="operator">></span>addWidget(textButton<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>AlignHCenter);
textLayout<span class="operator">-</span><span class="operator">></span>addWidget(<span class="keyword">new</span> <span class="type"><a href="qlabel.html">QLabel</a></span>(tr(<span class="string">"Text"</span>))<span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>AlignCenter);
<span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>textWidget <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qwidget.html">QWidget</a></span>;
textWidget<span class="operator">-</span><span class="operator">></span>setLayout(textLayout);
layout<span class="operator">-</span><span class="operator">></span>addWidget(textWidget<span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">1</span>);
layout<span class="operator">-</span><span class="operator">></span>setRowStretch(<span class="number">3</span><span class="operator">,</span> <span class="number">10</span>);
layout<span class="operator">-</span><span class="operator">></span>setColumnStretch(<span class="number">2</span><span class="operator">,</span> <span class="number">10</span>);
<span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>itemWidget <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qwidget.html">QWidget</a></span>;
itemWidget<span class="operator">-</span><span class="operator">></span>setLayout(layout);
backgroundButtonGroup <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qbuttongroup.html">QButtonGroup</a></span>(<span class="keyword">this</span>);
connect(backgroundButtonGroup<span class="operator">,</span> SIGNAL(buttonClicked(<span class="type"><a href="qabstractbutton.html">QAbstractButton</a></span><span class="operator">*</span>))<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> SLOT(backgroundButtonGroupClicked(<span class="type"><a href="qabstractbutton.html">QAbstractButton</a></span><span class="operator">*</span>)));
<span class="type"><a href="qgridlayout.html">QGridLayout</a></span> <span class="operator">*</span>backgroundLayout <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qgridlayout.html">QGridLayout</a></span>;
backgroundLayout<span class="operator">-</span><span class="operator">></span>addWidget(createBackgroundCellWidget(tr(<span class="string">"Blue Grid"</span>)<span class="operator">,</span>
<span class="string">":/images/background1.png"</span>)<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">0</span>);
backgroundLayout<span class="operator">-</span><span class="operator">></span>addWidget(createBackgroundCellWidget(tr(<span class="string">"White Grid"</span>)<span class="operator">,</span>
<span class="string">":/images/background2.png"</span>)<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">1</span>);
backgroundLayout<span class="operator">-</span><span class="operator">></span>addWidget(createBackgroundCellWidget(tr(<span class="string">"Gray Grid"</span>)<span class="operator">,</span>
<span class="string">":/images/background3.png"</span>)<span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">0</span>);
backgroundLayout<span class="operator">-</span><span class="operator">></span>addWidget(createBackgroundCellWidget(tr(<span class="string">"No Grid"</span>)<span class="operator">,</span>
<span class="string">":/images/background4.png"</span>)<span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">1</span>);
backgroundLayout<span class="operator">-</span><span class="operator">></span>setRowStretch(<span class="number">2</span><span class="operator">,</span> <span class="number">10</span>);
backgroundLayout<span class="operator">-</span><span class="operator">></span>setColumnStretch(<span class="number">2</span><span class="operator">,</span> <span class="number">10</span>);
<span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>backgroundWidget <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qwidget.html">QWidget</a></span>;
backgroundWidget<span class="operator">-</span><span class="operator">></span>setLayout(backgroundLayout);
toolBox <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtoolbox.html">QToolBox</a></span>;
toolBox<span class="operator">-</span><span class="operator">></span>setSizePolicy(<span class="type"><a href="qsizepolicy.html">QSizePolicy</a></span>(<span class="type"><a href="qsizepolicy.html">QSizePolicy</a></span><span class="operator">::</span>Maximum<span class="operator">,</span> <span class="type"><a href="qsizepolicy.html">QSizePolicy</a></span><span class="operator">::</span>Ignored));
toolBox<span class="operator">-</span><span class="operator">></span>setMinimumWidth(itemWidget<span class="operator">-</span><span class="operator">></span>sizeHint()<span class="operator">.</span>width());
toolBox<span class="operator">-</span><span class="operator">></span>addItem(itemWidget<span class="operator">,</span> tr(<span class="string">"Basic Flowchart Shapes"</span>));
toolBox<span class="operator">-</span><span class="operator">></span>addItem(backgroundWidget<span class="operator">,</span> tr(<span class="string">"Backgrounds"</span>));
}
<span class="type">void</span> MainWindow<span class="operator">::</span>createActions()
{
toFrontAction <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(<span class="type"><a href="../qtgui/qicon.html">QIcon</a></span>(<span class="string">":/images/bringtofront.png"</span>)<span class="operator">,</span>
tr(<span class="string">"Bring to &Front"</span>)<span class="operator">,</span> <span class="keyword">this</span>);
toFrontAction<span class="operator">-</span><span class="operator">></span>setShortcut(tr(<span class="string">"Ctrl+F"</span>));
toFrontAction<span class="operator">-</span><span class="operator">></span>setStatusTip(tr(<span class="string">"Bring item to front"</span>));
connect(toFrontAction<span class="operator">,</span> SIGNAL(triggered())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(bringToFront()));
sendBackAction <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(<span class="type"><a href="../qtgui/qicon.html">QIcon</a></span>(<span class="string">":/images/sendtoback.png"</span>)<span class="operator">,</span> tr(<span class="string">"Send to &Back"</span>)<span class="operator">,</span> <span class="keyword">this</span>);
sendBackAction<span class="operator">-</span><span class="operator">></span>setShortcut(tr(<span class="string">"Ctrl+T"</span>));
sendBackAction<span class="operator">-</span><span class="operator">></span>setStatusTip(tr(<span class="string">"Send item to back"</span>));
connect(sendBackAction<span class="operator">,</span> SIGNAL(triggered())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(sendToBack()));
deleteAction <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(<span class="type"><a href="../qtgui/qicon.html">QIcon</a></span>(<span class="string">":/images/delete.png"</span>)<span class="operator">,</span> tr(<span class="string">"&Delete"</span>)<span class="operator">,</span> <span class="keyword">this</span>);
deleteAction<span class="operator">-</span><span class="operator">></span>setShortcut(tr(<span class="string">"Delete"</span>));
deleteAction<span class="operator">-</span><span class="operator">></span>setStatusTip(tr(<span class="string">"Delete item from diagram"</span>));
connect(deleteAction<span class="operator">,</span> SIGNAL(triggered())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(deleteItem()));
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>);
exitAction<span class="operator">-</span><span class="operator">></span>setShortcuts(<span class="type"><a href="../qtgui/qkeysequence.html">QKeySequence</a></span><span class="operator">::</span>Quit);
exitAction<span class="operator">-</span><span class="operator">></span>setStatusTip(tr(<span class="string">"Quit Scenediagram example"</span>));
connect(exitAction<span class="operator">,</span> SIGNAL(triggered())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(close()));
boldAction <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">"Bold"</span>)<span class="operator">,</span> <span class="keyword">this</span>);
boldAction<span class="operator">-</span><span class="operator">></span>setCheckable(<span class="keyword">true</span>);
<span class="type"><a href="../qtgui/qpixmap.html">QPixmap</a></span> pixmap(<span class="string">":/images/bold.png"</span>);
boldAction<span class="operator">-</span><span class="operator">></span>setIcon(<span class="type"><a href="../qtgui/qicon.html">QIcon</a></span>(pixmap));
boldAction<span class="operator">-</span><span class="operator">></span>setShortcut(tr(<span class="string">"Ctrl+B"</span>));
connect(boldAction<span class="operator">,</span> SIGNAL(triggered())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(handleFontChange()));
italicAction <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(<span class="type"><a href="../qtgui/qicon.html">QIcon</a></span>(<span class="string">":/images/italic.png"</span>)<span class="operator">,</span> tr(<span class="string">"Italic"</span>)<span class="operator">,</span> <span class="keyword">this</span>);
italicAction<span class="operator">-</span><span class="operator">></span>setCheckable(<span class="keyword">true</span>);
italicAction<span class="operator">-</span><span class="operator">></span>setShortcut(tr(<span class="string">"Ctrl+I"</span>));
connect(italicAction<span class="operator">,</span> SIGNAL(triggered())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(handleFontChange()));
underlineAction <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(<span class="type"><a href="../qtgui/qicon.html">QIcon</a></span>(<span class="string">":/images/underline.png"</span>)<span class="operator">,</span> tr(<span class="string">"Underline"</span>)<span class="operator">,</span> <span class="keyword">this</span>);
underlineAction<span class="operator">-</span><span class="operator">></span>setCheckable(<span class="keyword">true</span>);
underlineAction<span class="operator">-</span><span class="operator">></span>setShortcut(tr(<span class="string">"Ctrl+U"</span>));
connect(underlineAction<span class="operator">,</span> SIGNAL(triggered())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(handleFontChange()));
aboutAction <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">"A&bout"</span>)<span class="operator">,</span> <span class="keyword">this</span>);
aboutAction<span class="operator">-</span><span class="operator">></span>setShortcut(tr(<span class="string">"F1"</span>));
connect(aboutAction<span class="operator">,</span> SIGNAL(triggered())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(about()));
}
<span class="type">void</span> MainWindow<span class="operator">::</span>createMenus()
{
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(exitAction);
itemMenu <span class="operator">=</span> menuBar()<span class="operator">-</span><span class="operator">></span>addMenu(tr(<span class="string">"&Item"</span>));
itemMenu<span class="operator">-</span><span class="operator">></span>addAction(deleteAction);
itemMenu<span class="operator">-</span><span class="operator">></span>addSeparator();
itemMenu<span class="operator">-</span><span class="operator">></span>addAction(toFrontAction);
itemMenu<span class="operator">-</span><span class="operator">></span>addAction(sendBackAction);
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(aboutAction);
}
<span class="type">void</span> MainWindow<span class="operator">::</span>createToolbars()
{
editToolBar <span class="operator">=</span> addToolBar(tr(<span class="string">"Edit"</span>));
editToolBar<span class="operator">-</span><span class="operator">></span>addAction(deleteAction);
editToolBar<span class="operator">-</span><span class="operator">></span>addAction(toFrontAction);
editToolBar<span class="operator">-</span><span class="operator">></span>addAction(sendBackAction);
fontCombo <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qfontcombobox.html">QFontComboBox</a></span>();
connect(fontCombo<span class="operator">,</span> SIGNAL(currentFontChanged(<span class="type"><a href="../qtgui/qfont.html">QFont</a></span>))<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> SLOT(currentFontChanged(<span class="type"><a href="../qtgui/qfont.html">QFont</a></span>)));
fontSizeCombo <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qcombobox.html">QComboBox</a></span>;
fontSizeCombo<span class="operator">-</span><span class="operator">></span>setEditable(<span class="keyword">true</span>);
<span class="keyword">for</span> (<span class="type">int</span> i <span class="operator">=</span> <span class="number">8</span>; i <span class="operator"><</span> <span class="number">30</span>; i <span class="operator">=</span> i <span class="operator">+</span> <span class="number">2</span>)
fontSizeCombo<span class="operator">-</span><span class="operator">></span>addItem(<span class="type"><a href="../qtcore/qstring.html">QString</a></span>()<span class="operator">.</span>setNum(i));
<span class="type"><a href="../qtgui/qintvalidator.html">QIntValidator</a></span> <span class="operator">*</span>validator <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtgui/qintvalidator.html">QIntValidator</a></span>(<span class="number">2</span><span class="operator">,</span> <span class="number">64</span><span class="operator">,</span> <span class="keyword">this</span>);
fontSizeCombo<span class="operator">-</span><span class="operator">></span>setValidator(validator);
connect(fontSizeCombo<span class="operator">,</span> SIGNAL(currentIndexChanged(<span class="type"><a href="../qtcore/qstring.html">QString</a></span>))<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> SLOT(fontSizeChanged(<span class="type"><a href="../qtcore/qstring.html">QString</a></span>)));
fontColorToolButton <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtoolbutton.html">QToolButton</a></span>;
fontColorToolButton<span class="operator">-</span><span class="operator">></span>setPopupMode(<span class="type"><a href="qtoolbutton.html">QToolButton</a></span><span class="operator">::</span>MenuButtonPopup);
fontColorToolButton<span class="operator">-</span><span class="operator">></span>setMenu(createColorMenu(SLOT(textColorChanged())<span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>black));
textAction <span class="operator">=</span> fontColorToolButton<span class="operator">-</span><span class="operator">></span>menu()<span class="operator">-</span><span class="operator">></span>defaultAction();
fontColorToolButton<span class="operator">-</span><span class="operator">></span>setIcon(createColorToolButtonIcon(<span class="string">":/images/textpointer.png"</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>black));
fontColorToolButton<span class="operator">-</span><span class="operator">></span>setAutoFillBackground(<span class="keyword">true</span>);
connect(fontColorToolButton<span class="operator">,</span> SIGNAL(clicked())<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> SLOT(textButtonTriggered()));
fillColorToolButton <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtoolbutton.html">QToolButton</a></span>;
fillColorToolButton<span class="operator">-</span><span class="operator">></span>setPopupMode(<span class="type"><a href="qtoolbutton.html">QToolButton</a></span><span class="operator">::</span>MenuButtonPopup);
fillColorToolButton<span class="operator">-</span><span class="operator">></span>setMenu(createColorMenu(SLOT(itemColorChanged())<span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>white));
fillAction <span class="operator">=</span> fillColorToolButton<span class="operator">-</span><span class="operator">></span>menu()<span class="operator">-</span><span class="operator">></span>defaultAction();
fillColorToolButton<span class="operator">-</span><span class="operator">></span>setIcon(createColorToolButtonIcon(
<span class="string">":/images/floodfill.png"</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>white));
connect(fillColorToolButton<span class="operator">,</span> SIGNAL(clicked())<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> SLOT(fillButtonTriggered()));
lineColorToolButton <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtoolbutton.html">QToolButton</a></span>;
lineColorToolButton<span class="operator">-</span><span class="operator">></span>setPopupMode(<span class="type"><a href="qtoolbutton.html">QToolButton</a></span><span class="operator">::</span>MenuButtonPopup);
lineColorToolButton<span class="operator">-</span><span class="operator">></span>setMenu(createColorMenu(SLOT(lineColorChanged())<span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>black));
lineAction <span class="operator">=</span> lineColorToolButton<span class="operator">-</span><span class="operator">></span>menu()<span class="operator">-</span><span class="operator">></span>defaultAction();
lineColorToolButton<span class="operator">-</span><span class="operator">></span>setIcon(createColorToolButtonIcon(
<span class="string">":/images/linecolor.png"</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>black));
connect(lineColorToolButton<span class="operator">,</span> SIGNAL(clicked())<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> SLOT(lineButtonTriggered()));
textToolBar <span class="operator">=</span> addToolBar(tr(<span class="string">"Font"</span>));
textToolBar<span class="operator">-</span><span class="operator">></span>addWidget(fontCombo);
textToolBar<span class="operator">-</span><span class="operator">></span>addWidget(fontSizeCombo);
textToolBar<span class="operator">-</span><span class="operator">></span>addAction(boldAction);
textToolBar<span class="operator">-</span><span class="operator">></span>addAction(italicAction);
textToolBar<span class="operator">-</span><span class="operator">></span>addAction(underlineAction);
colorToolBar <span class="operator">=</span> addToolBar(tr(<span class="string">"Color"</span>));
colorToolBar<span class="operator">-</span><span class="operator">></span>addWidget(fontColorToolButton);
colorToolBar<span class="operator">-</span><span class="operator">></span>addWidget(fillColorToolButton);
colorToolBar<span class="operator">-</span><span class="operator">></span>addWidget(lineColorToolButton);
<span class="type"><a href="qtoolbutton.html">QToolButton</a></span> <span class="operator">*</span>pointerButton <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtoolbutton.html">QToolButton</a></span>;
pointerButton<span class="operator">-</span><span class="operator">></span>setCheckable(<span class="keyword">true</span>);
pointerButton<span class="operator">-</span><span class="operator">></span>setChecked(<span class="keyword">true</span>);
pointerButton<span class="operator">-</span><span class="operator">></span>setIcon(<span class="type"><a href="../qtgui/qicon.html">QIcon</a></span>(<span class="string">":/images/pointer.png"</span>));
<span class="type"><a href="qtoolbutton.html">QToolButton</a></span> <span class="operator">*</span>linePointerButton <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtoolbutton.html">QToolButton</a></span>;
linePointerButton<span class="operator">-</span><span class="operator">></span>setCheckable(<span class="keyword">true</span>);
linePointerButton<span class="operator">-</span><span class="operator">></span>setIcon(<span class="type"><a href="../qtgui/qicon.html">QIcon</a></span>(<span class="string">":/images/linepointer.png"</span>));
pointerTypeGroup <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qbuttongroup.html">QButtonGroup</a></span>(<span class="keyword">this</span>);
pointerTypeGroup<span class="operator">-</span><span class="operator">></span>addButton(pointerButton<span class="operator">,</span> <span class="type">int</span>(DiagramScene<span class="operator">::</span>MoveItem));
pointerTypeGroup<span class="operator">-</span><span class="operator">></span>addButton(linePointerButton<span class="operator">,</span> <span class="type">int</span>(DiagramScene<span class="operator">::</span>InsertLine));
connect(pointerTypeGroup<span class="operator">,</span> SIGNAL(buttonClicked(<span class="type">int</span>))<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> SLOT(pointerGroupClicked(<span class="type">int</span>)));
sceneScaleCombo <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qcombobox.html">QComboBox</a></span>;
<span class="type"><a href="../qtcore/qstringlist.html">QStringList</a></span> scales;
scales <span class="operator"><</span><span class="operator"><</span> tr(<span class="string">"50%"</span>) <span class="operator"><</span><span class="operator"><</span> tr(<span class="string">"75%"</span>) <span class="operator"><</span><span class="operator"><</span> tr(<span class="string">"100%"</span>) <span class="operator"><</span><span class="operator"><</span> tr(<span class="string">"125%"</span>) <span class="operator"><</span><span class="operator"><</span> tr(<span class="string">"150%"</span>);
sceneScaleCombo<span class="operator">-</span><span class="operator">></span>addItems(scales);
sceneScaleCombo<span class="operator">-</span><span class="operator">></span>setCurrentIndex(<span class="number">2</span>);
connect(sceneScaleCombo<span class="operator">,</span> SIGNAL(currentIndexChanged(<span class="type"><a href="../qtcore/qstring.html">QString</a></span>))<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> SLOT(sceneScaleChanged(<span class="type"><a href="../qtcore/qstring.html">QString</a></span>)));
pointerToolbar <span class="operator">=</span> addToolBar(tr(<span class="string">"Pointer type"</span>));
pointerToolbar<span class="operator">-</span><span class="operator">></span>addWidget(pointerButton);
pointerToolbar<span class="operator">-</span><span class="operator">></span>addWidget(linePointerButton);
pointerToolbar<span class="operator">-</span><span class="operator">></span>addWidget(sceneScaleCombo);
}
<span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>MainWindow<span class="operator">::</span>createBackgroundCellWidget(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&</span>text<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&</span>image)
{
<span class="type"><a href="qtoolbutton.html">QToolButton</a></span> <span class="operator">*</span>button <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtoolbutton.html">QToolButton</a></span>;
button<span class="operator">-</span><span class="operator">></span>setText(text);
button<span class="operator">-</span><span class="operator">></span>setIcon(<span class="type"><a href="../qtgui/qicon.html">QIcon</a></span>(image));
button<span class="operator">-</span><span class="operator">></span>setIconSize(<span class="type"><a href="../qtcore/qsize.html">QSize</a></span>(<span class="number">50</span><span class="operator">,</span> <span class="number">50</span>));
button<span class="operator">-</span><span class="operator">></span>setCheckable(<span class="keyword">true</span>);
backgroundButtonGroup<span class="operator">-</span><span class="operator">></span>addButton(button);
<span class="type"><a href="qgridlayout.html">QGridLayout</a></span> <span class="operator">*</span>layout <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qgridlayout.html">QGridLayout</a></span>;
layout<span class="operator">-</span><span class="operator">></span>addWidget(button<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>AlignHCenter);
layout<span class="operator">-</span><span class="operator">></span>addWidget(<span class="keyword">new</span> <span class="type"><a href="qlabel.html">QLabel</a></span>(text)<span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>AlignCenter);
<span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>widget <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qwidget.html">QWidget</a></span>;
widget<span class="operator">-</span><span class="operator">></span>setLayout(layout);
<span class="keyword">return</span> widget;
}
<span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>MainWindow<span class="operator">::</span>createCellWidget(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&</span>text<span class="operator">,</span> DiagramItem<span class="operator">::</span>DiagramType type)
{
DiagramItem item(type<span class="operator">,</span> itemMenu);
<span class="type"><a href="../qtgui/qicon.html">QIcon</a></span> icon(item<span class="operator">.</span>image());
<span class="type"><a href="qtoolbutton.html">QToolButton</a></span> <span class="operator">*</span>button <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtoolbutton.html">QToolButton</a></span>;
button<span class="operator">-</span><span class="operator">></span>setIcon(icon);
button<span class="operator">-</span><span class="operator">></span>setIconSize(<span class="type"><a href="../qtcore/qsize.html">QSize</a></span>(<span class="number">50</span><span class="operator">,</span> <span class="number">50</span>));
button<span class="operator">-</span><span class="operator">></span>setCheckable(<span class="keyword">true</span>);
buttonGroup<span class="operator">-</span><span class="operator">></span>addButton(button<span class="operator">,</span> <span class="type">int</span>(type));
<span class="type"><a href="qgridlayout.html">QGridLayout</a></span> <span class="operator">*</span>layout <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qgridlayout.html">QGridLayout</a></span>;
layout<span class="operator">-</span><span class="operator">></span>addWidget(button<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>AlignHCenter);
layout<span class="operator">-</span><span class="operator">></span>addWidget(<span class="keyword">new</span> <span class="type"><a href="qlabel.html">QLabel</a></span>(text)<span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>AlignCenter);
<span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>widget <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qwidget.html">QWidget</a></span>;
widget<span class="operator">-</span><span class="operator">></span>setLayout(layout);
<span class="keyword">return</span> widget;
}
<span class="type"><a href="qmenu.html">QMenu</a></span> <span class="operator">*</span>MainWindow<span class="operator">::</span>createColorMenu(<span class="keyword">const</span> <span class="type">char</span> <span class="operator">*</span>slot<span class="operator">,</span> <span class="type"><a href="../qtgui/qcolor.html">QColor</a></span> defaultColor)
{
<span class="type"><a href="../qtcore/qlist.html">QList</a></span><span class="operator"><</span><span class="type"><a href="../qtgui/qcolor.html">QColor</a></span><span class="operator">></span> colors;
colors <span class="operator"><</span><span class="operator"><</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>black <span class="operator"><</span><span class="operator"><</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>white <span class="operator"><</span><span class="operator"><</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>red <span class="operator"><</span><span class="operator"><</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>blue <span class="operator"><</span><span class="operator"><</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>yellow;
<span class="type"><a href="../qtcore/qstringlist.html">QStringList</a></span> names;
names <span class="operator"><</span><span class="operator"><</span> tr(<span class="string">"black"</span>) <span class="operator"><</span><span class="operator"><</span> tr(<span class="string">"white"</span>) <span class="operator"><</span><span class="operator"><</span> tr(<span class="string">"red"</span>) <span class="operator"><</span><span class="operator"><</span> tr(<span class="string">"blue"</span>)
<span class="operator"><</span><span class="operator"><</span> tr(<span class="string">"yellow"</span>);
<span class="type"><a href="qmenu.html">QMenu</a></span> <span class="operator">*</span>colorMenu <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qmenu.html">QMenu</a></span>(<span class="keyword">this</span>);
<span class="keyword">for</span> (<span class="type">int</span> i <span class="operator">=</span> <span class="number">0</span>; i <span class="operator"><</span> colors<span class="operator">.</span>count(); <span class="operator">+</span><span class="operator">+</span>i) {
<span class="type"><a href="qaction.html">QAction</a></span> <span class="operator">*</span>action <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(names<span class="operator">.</span>at(i)<span class="operator">,</span> <span class="keyword">this</span>);
action<span class="operator">-</span><span class="operator">></span>setData(colors<span class="operator">.</span>at(i));
action<span class="operator">-</span><span class="operator">></span>setIcon(createColorIcon(colors<span class="operator">.</span>at(i)));
connect(action<span class="operator">,</span> SIGNAL(triggered())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> slot);
colorMenu<span class="operator">-</span><span class="operator">></span>addAction(action);
<span class="keyword">if</span> (colors<span class="operator">.</span>at(i) <span class="operator">=</span><span class="operator">=</span> defaultColor)
colorMenu<span class="operator">-</span><span class="operator">></span>setDefaultAction(action);
}
<span class="keyword">return</span> colorMenu;
}
<span class="type"><a href="../qtgui/qicon.html">QIcon</a></span> MainWindow<span class="operator">::</span>createColorToolButtonIcon(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&</span>imageFile<span class="operator">,</span> <span class="type"><a href="../qtgui/qcolor.html">QColor</a></span> color)
{
<span class="type"><a href="../qtgui/qpixmap.html">QPixmap</a></span> pixmap(<span class="number">50</span><span class="operator">,</span> <span class="number">80</span>);
pixmap<span class="operator">.</span>fill(<span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>transparent);
<span class="type"><a href="../qtgui/qpainter.html">QPainter</a></span> painter(<span class="operator">&</span>pixmap);
<span class="type"><a href="../qtgui/qpixmap.html">QPixmap</a></span> image(imageFile);
<span class="comment">// Draw icon centred horizontally on button.</span>
<span class="type"><a href="../qtcore/qrect.html">QRect</a></span> target(<span class="number">4</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">42</span><span class="operator">,</span> <span class="number">43</span>);
<span class="type"><a href="../qtcore/qrect.html">QRect</a></span> source(<span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">42</span><span class="operator">,</span> <span class="number">43</span>);
painter<span class="operator">.</span>fillRect(<span class="type"><a href="../qtcore/qrect.html">QRect</a></span>(<span class="number">0</span><span class="operator">,</span> <span class="number">60</span><span class="operator">,</span> <span class="number">50</span><span class="operator">,</span> <span class="number">80</span>)<span class="operator">,</span> color);
painter<span class="operator">.</span>drawPixmap(target<span class="operator">,</span> image<span class="operator">,</span> source);
<span class="keyword">return</span> <span class="type"><a href="../qtgui/qicon.html">QIcon</a></span>(pixmap);
}
<span class="type"><a href="../qtgui/qicon.html">QIcon</a></span> MainWindow<span class="operator">::</span>createColorIcon(<span class="type"><a href="../qtgui/qcolor.html">QColor</a></span> color)
{
<span class="type"><a href="../qtgui/qpixmap.html">QPixmap</a></span> pixmap(<span class="number">20</span><span class="operator">,</span> <span class="number">20</span>);
<span class="type"><a href="../qtgui/qpainter.html">QPainter</a></span> painter(<span class="operator">&</span>pixmap);
painter<span class="operator">.</span>setPen(<span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>NoPen);
painter<span class="operator">.</span>fillRect(<span class="type"><a href="../qtcore/qrect.html">QRect</a></span>(<span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">20</span><span class="operator">,</span> <span class="number">20</span>)<span class="operator">,</span> color);
<span class="keyword">return</span> <span class="type"><a href="../qtgui/qicon.html">QIcon</a></span>(pixmap);
}
</pre>
</div>
<!-- @@@graphicsview/diagramscene/mainwindow.cpp -->
</div>
</div>
</div>
</div>
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<p>
<acronym title="Copyright">©</acronym> 2017 The Qt Company Ltd.
Documentation contributions included herein are the copyrights of
their respective owners.<br> The documentation provided herein is licensed under the terms of the <a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation License version 1.3</a> as published by the Free Software Foundation.<br> Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property
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distrib
>
Mageia
>
6
>
armv5tl
>
media
>
core-updates
>
by-pkgid
>
768f7d9f703884aa2562bf0a651086df
>
files
>
3887
