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authorGabriel de Dietrich <gabriel.dietrich-de@nokia.com>2012-08-17 13:23:19 +0200
committerQt by Nokia <qt-info@nokia.com>2012-08-20 12:20:55 +0200
commit806dda08d685bc5f9ed71dfe8b61f21848d48066 (patch)
treea63533a1c4a335ae17adc105abb0ae4e62e2f26e /examples/graphicsview/elasticnodes
parent9f942014e31842b512c3198de035d041c59f54a9 (diff)
Moving .qdoc files under examples/widgets/doc
Updated those .qdoc files to refer to the new relative examples emplacement. Images and snippets to be moved later. Also grouped all widgets related examples under widgets. Change-Id: Ib29696e2d8948524537f53e8dda88f9ee26a597f Reviewed-by: J-P Nurmi <j-p.nurmi@nokia.com>
Diffstat (limited to 'examples/graphicsview/elasticnodes')
-rw-r--r--examples/graphicsview/elasticnodes/edge.cpp149
-rw-r--r--examples/graphicsview/elasticnodes/edge.h75
-rw-r--r--examples/graphicsview/elasticnodes/elasticnodes.desktop11
-rw-r--r--examples/graphicsview/elasticnodes/elasticnodes.pro20
-rw-r--r--examples/graphicsview/elasticnodes/graphwidget.cpp250
-rw-r--r--examples/graphicsview/elasticnodes/graphwidget.h77
-rw-r--r--examples/graphicsview/elasticnodes/main.cpp57
-rw-r--r--examples/graphicsview/elasticnodes/node.cpp212
-rw-r--r--examples/graphicsview/elasticnodes/node.h85
9 files changed, 0 insertions, 936 deletions
diff --git a/examples/graphicsview/elasticnodes/edge.cpp b/examples/graphicsview/elasticnodes/edge.cpp
deleted file mode 100644
index ee7334cdcc..0000000000
--- a/examples/graphicsview/elasticnodes/edge.cpp
+++ /dev/null
@@ -1,149 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
-** Contact: http://www.qt-project.org/
-**
-** This file is part of the examples of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** You may use this file under the terms of the BSD license as follows:
-**
-** "Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are
-** met:
-** * Redistributions of source code must retain the above copyright
-** notice, this list of conditions and the following disclaimer.
-** * Redistributions in binary form must reproduce the above copyright
-** notice, this list of conditions and the following disclaimer in
-** the documentation and/or other materials provided with the
-** distribution.
-** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
-** the names of its contributors may be used to endorse or promote
-** products derived from this software without specific prior written
-** permission.
-**
-** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include <QPainter>
-
-#include "edge.h"
-#include "node.h"
-
-#include <math.h>
-
-static const double Pi = 3.14159265358979323846264338327950288419717;
-static double TwoPi = 2.0 * Pi;
-
-//! [0]
-Edge::Edge(Node *sourceNode, Node *destNode)
- : arrowSize(10)
-{
- setAcceptedMouseButtons(0);
- source = sourceNode;
- dest = destNode;
- source->addEdge(this);
- dest->addEdge(this);
- adjust();
-}
-//! [0]
-
-//! [1]
-Node *Edge::sourceNode() const
-{
- return source;
-}
-
-Node *Edge::destNode() const
-{
- return dest;
-}
-//! [1]
-
-//! [2]
-void Edge::adjust()
-{
- if (!source || !dest)
- return;
-
- QLineF line(mapFromItem(source, 0, 0), mapFromItem(dest, 0, 0));
- qreal length = line.length();
-
- prepareGeometryChange();
-
- if (length > qreal(20.)) {
- QPointF edgeOffset((line.dx() * 10) / length, (line.dy() * 10) / length);
- sourcePoint = line.p1() + edgeOffset;
- destPoint = line.p2() - edgeOffset;
- } else {
- sourcePoint = destPoint = line.p1();
- }
-}
-//! [2]
-
-//! [3]
-QRectF Edge::boundingRect() const
-{
- if (!source || !dest)
- return QRectF();
-
- qreal penWidth = 1;
- qreal extra = (penWidth + arrowSize) / 2.0;
-
- return QRectF(sourcePoint, QSizeF(destPoint.x() - sourcePoint.x(),
- destPoint.y() - sourcePoint.y()))
- .normalized()
- .adjusted(-extra, -extra, extra, extra);
-}
-//! [3]
-
-//! [4]
-void Edge::paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget *)
-{
- if (!source || !dest)
- return;
-
- QLineF line(sourcePoint, destPoint);
- if (qFuzzyCompare(line.length(), qreal(0.)))
- return;
-//! [4]
-
-//! [5]
- // Draw the line itself
- painter->setPen(QPen(Qt::black, 1, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin));
- painter->drawLine(line);
-//! [5]
-
-//! [6]
- // Draw the arrows
- double angle = ::acos(line.dx() / line.length());
- if (line.dy() >= 0)
- angle = TwoPi - angle;
-
- QPointF sourceArrowP1 = sourcePoint + QPointF(sin(angle + Pi / 3) * arrowSize,
- cos(angle + Pi / 3) * arrowSize);
- QPointF sourceArrowP2 = sourcePoint + QPointF(sin(angle + Pi - Pi / 3) * arrowSize,
- cos(angle + Pi - Pi / 3) * arrowSize);
- QPointF destArrowP1 = destPoint + QPointF(sin(angle - Pi / 3) * arrowSize,
- cos(angle - Pi / 3) * arrowSize);
- QPointF destArrowP2 = destPoint + QPointF(sin(angle - Pi + Pi / 3) * arrowSize,
- cos(angle - Pi + Pi / 3) * arrowSize);
-
- painter->setBrush(Qt::black);
- painter->drawPolygon(QPolygonF() << line.p1() << sourceArrowP1 << sourceArrowP2);
- painter->drawPolygon(QPolygonF() << line.p2() << destArrowP1 << destArrowP2);
-}
-//! [6]
diff --git a/examples/graphicsview/elasticnodes/edge.h b/examples/graphicsview/elasticnodes/edge.h
deleted file mode 100644
index 9bf4112212..0000000000
--- a/examples/graphicsview/elasticnodes/edge.h
+++ /dev/null
@@ -1,75 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
-** Contact: http://www.qt-project.org/
-**
-** This file is part of the examples of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** You may use this file under the terms of the BSD license as follows:
-**
-** "Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are
-** met:
-** * Redistributions of source code must retain the above copyright
-** notice, this list of conditions and the following disclaimer.
-** * Redistributions in binary form must reproduce the above copyright
-** notice, this list of conditions and the following disclaimer in
-** the documentation and/or other materials provided with the
-** distribution.
-** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
-** the names of its contributors may be used to endorse or promote
-** products derived from this software without specific prior written
-** permission.
-**
-** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#ifndef EDGE_H
-#define EDGE_H
-
-#include <QGraphicsItem>
-
-class Node;
-
-//! [0]
-class Edge : public QGraphicsItem
-{
-public:
- Edge(Node *sourceNode, Node *destNode);
-
- Node *sourceNode() const;
- Node *destNode() const;
-
- void adjust();
-
- enum { Type = UserType + 2 };
- int type() const { return Type; }
-
-protected:
- QRectF boundingRect() const;
- void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
-
-private:
- Node *source, *dest;
-
- QPointF sourcePoint;
- QPointF destPoint;
- qreal arrowSize;
-};
-//! [0]
-
-#endif
diff --git a/examples/graphicsview/elasticnodes/elasticnodes.desktop b/examples/graphicsview/elasticnodes/elasticnodes.desktop
deleted file mode 100644
index 64402d080f..0000000000
--- a/examples/graphicsview/elasticnodes/elasticnodes.desktop
+++ /dev/null
@@ -1,11 +0,0 @@
-[Desktop Entry]
-Encoding=UTF-8
-Version=1.0
-Type=Application
-Terminal=false
-Name=Elastic Nodes
-Exec=/opt/usr/bin/elasticnodes
-Icon=elasticnodes
-X-Window-Icon=
-X-HildonDesk-ShowInToolbar=true
-X-Osso-Type=application/x-executable
diff --git a/examples/graphicsview/elasticnodes/elasticnodes.pro b/examples/graphicsview/elasticnodes/elasticnodes.pro
deleted file mode 100644
index 2a61809457..0000000000
--- a/examples/graphicsview/elasticnodes/elasticnodes.pro
+++ /dev/null
@@ -1,20 +0,0 @@
-HEADERS += \
- edge.h \
- node.h \
- graphwidget.h
-
-SOURCES += \
- edge.cpp \
- main.cpp \
- node.cpp \
- graphwidget.cpp
-
-TARGET.EPOCHEAPSIZE = 0x200000 0xA00000
-
-# install
-target.path = $$[QT_INSTALL_EXAMPLES]/qtbase/graphicsview/elasticnodes
-sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS elasticnodes.pro
-sources.path = $$[QT_INSTALL_EXAMPLES]/qtbase/graphicsview/elasticnodes
-INSTALLS += target sources
-
-QT += widgets
diff --git a/examples/graphicsview/elasticnodes/graphwidget.cpp b/examples/graphicsview/elasticnodes/graphwidget.cpp
deleted file mode 100644
index 36005b85f4..0000000000
--- a/examples/graphicsview/elasticnodes/graphwidget.cpp
+++ /dev/null
@@ -1,250 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
-** Contact: http://www.qt-project.org/
-**
-** This file is part of the examples of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** You may use this file under the terms of the BSD license as follows:
-**
-** "Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are
-** met:
-** * Redistributions of source code must retain the above copyright
-** notice, this list of conditions and the following disclaimer.
-** * Redistributions in binary form must reproduce the above copyright
-** notice, this list of conditions and the following disclaimer in
-** the documentation and/or other materials provided with the
-** distribution.
-** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
-** the names of its contributors may be used to endorse or promote
-** products derived from this software without specific prior written
-** permission.
-**
-** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include "graphwidget.h"
-#include "edge.h"
-#include "node.h"
-
-#include <QtWidgets>
-
-#include <math.h>
-
-//! [0]
-GraphWidget::GraphWidget(QWidget *parent)
- : QGraphicsView(parent), timerId(0)
-{
- QGraphicsScene *scene = new QGraphicsScene(this);
- scene->setItemIndexMethod(QGraphicsScene::NoIndex);
- scene->setSceneRect(-200, -200, 400, 400);
- setScene(scene);
- setCacheMode(CacheBackground);
- setViewportUpdateMode(BoundingRectViewportUpdate);
- setRenderHint(QPainter::Antialiasing);
- setTransformationAnchor(AnchorUnderMouse);
- scale(qreal(0.8), qreal(0.8));
- setMinimumSize(400, 400);
- setWindowTitle(tr("Elastic Nodes"));
-//! [0]
-
-//! [1]
- Node *node1 = new Node(this);
- Node *node2 = new Node(this);
- Node *node3 = new Node(this);
- Node *node4 = new Node(this);
- centerNode = new Node(this);
- Node *node6 = new Node(this);
- Node *node7 = new Node(this);
- Node *node8 = new Node(this);
- Node *node9 = new Node(this);
- scene->addItem(node1);
- scene->addItem(node2);
- scene->addItem(node3);
- scene->addItem(node4);
- scene->addItem(centerNode);
- scene->addItem(node6);
- scene->addItem(node7);
- scene->addItem(node8);
- scene->addItem(node9);
- scene->addItem(new Edge(node1, node2));
- scene->addItem(new Edge(node2, node3));
- scene->addItem(new Edge(node2, centerNode));
- scene->addItem(new Edge(node3, node6));
- scene->addItem(new Edge(node4, node1));
- scene->addItem(new Edge(node4, centerNode));
- scene->addItem(new Edge(centerNode, node6));
- scene->addItem(new Edge(centerNode, node8));
- scene->addItem(new Edge(node6, node9));
- scene->addItem(new Edge(node7, node4));
- scene->addItem(new Edge(node8, node7));
- scene->addItem(new Edge(node9, node8));
-
- node1->setPos(-50, -50);
- node2->setPos(0, -50);
- node3->setPos(50, -50);
- node4->setPos(-50, 0);
- centerNode->setPos(0, 0);
- node6->setPos(50, 0);
- node7->setPos(-50, 50);
- node8->setPos(0, 50);
- node9->setPos(50, 50);
-}
-//! [1]
-
-//! [2]
-void GraphWidget::itemMoved()
-{
- if (!timerId)
- timerId = startTimer(1000 / 25);
-}
-//! [2]
-
-//! [3]
-void GraphWidget::keyPressEvent(QKeyEvent *event)
-{
- switch (event->key()) {
- case Qt::Key_Up:
- centerNode->moveBy(0, -20);
- break;
- case Qt::Key_Down:
- centerNode->moveBy(0, 20);
- break;
- case Qt::Key_Left:
- centerNode->moveBy(-20, 0);
- break;
- case Qt::Key_Right:
- centerNode->moveBy(20, 0);
- break;
- case Qt::Key_Plus:
- zoomIn();
- break;
- case Qt::Key_Minus:
- zoomOut();
- break;
- case Qt::Key_Space:
- case Qt::Key_Enter:
- shuffle();
- break;
- default:
- QGraphicsView::keyPressEvent(event);
- }
-}
-//! [3]
-
-//! [4]
-void GraphWidget::timerEvent(QTimerEvent *event)
-{
- Q_UNUSED(event);
-
- QList<Node *> nodes;
- foreach (QGraphicsItem *item, scene()->items()) {
- if (Node *node = qgraphicsitem_cast<Node *>(item))
- nodes << node;
- }
-
- foreach (Node *node, nodes)
- node->calculateForces();
-
- bool itemsMoved = false;
- foreach (Node *node, nodes) {
- if (node->advance())
- itemsMoved = true;
- }
-
- if (!itemsMoved) {
- killTimer(timerId);
- timerId = 0;
- }
-}
-//! [4]
-
-//! [5]
-void GraphWidget::wheelEvent(QWheelEvent *event)
-{
- scaleView(pow((double)2, -event->delta() / 240.0));
-}
-//! [5]
-
-//! [6]
-void GraphWidget::drawBackground(QPainter *painter, const QRectF &rect)
-{
- Q_UNUSED(rect);
-
- // Shadow
- QRectF sceneRect = this->sceneRect();
- QRectF rightShadow(sceneRect.right(), sceneRect.top() + 5, 5, sceneRect.height());
- QRectF bottomShadow(sceneRect.left() + 5, sceneRect.bottom(), sceneRect.width(), 5);
- if (rightShadow.intersects(rect) || rightShadow.contains(rect))
- painter->fillRect(rightShadow, Qt::darkGray);
- if (bottomShadow.intersects(rect) || bottomShadow.contains(rect))
- painter->fillRect(bottomShadow, Qt::darkGray);
-
- // Fill
- QLinearGradient gradient(sceneRect.topLeft(), sceneRect.bottomRight());
- gradient.setColorAt(0, Qt::white);
- gradient.setColorAt(1, Qt::lightGray);
- painter->fillRect(rect.intersected(sceneRect), gradient);
- painter->setBrush(Qt::NoBrush);
- painter->drawRect(sceneRect);
-
- // Text
- QRectF textRect(sceneRect.left() + 4, sceneRect.top() + 4,
- sceneRect.width() - 4, sceneRect.height() - 4);
- QString message(tr("Click and drag the nodes around, and zoom with the mouse "
- "wheel or the '+' and '-' keys"));
-
- QFont font = painter->font();
- font.setBold(true);
- font.setPointSize(14);
- painter->setFont(font);
- painter->setPen(Qt::lightGray);
- painter->drawText(textRect.translated(2, 2), message);
- painter->setPen(Qt::black);
- painter->drawText(textRect, message);
-}
-//! [6]
-
-//! [7]
-void GraphWidget::scaleView(qreal scaleFactor)
-{
- qreal factor = transform().scale(scaleFactor, scaleFactor).mapRect(QRectF(0, 0, 1, 1)).width();
- if (factor < 0.07 || factor > 100)
- return;
-
- scale(scaleFactor, scaleFactor);
-}
-//! [7]
-
-void GraphWidget::shuffle()
-{
- foreach (QGraphicsItem *item, scene()->items()) {
- if (qgraphicsitem_cast<Node *>(item))
- item->setPos(-150 + qrand() % 300, -150 + qrand() % 300);
- }
-}
-
-void GraphWidget::zoomIn()
-{
- scaleView(qreal(1.2));
-}
-
-void GraphWidget::zoomOut()
-{
- scaleView(1 / qreal(1.2));
-}
diff --git a/examples/graphicsview/elasticnodes/graphwidget.h b/examples/graphicsview/elasticnodes/graphwidget.h
deleted file mode 100644
index 61bcfdb5cb..0000000000
--- a/examples/graphicsview/elasticnodes/graphwidget.h
+++ /dev/null
@@ -1,77 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
-** Contact: http://www.qt-project.org/
-**
-** This file is part of the examples of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** You may use this file under the terms of the BSD license as follows:
-**
-** "Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are
-** met:
-** * Redistributions of source code must retain the above copyright
-** notice, this list of conditions and the following disclaimer.
-** * Redistributions in binary form must reproduce the above copyright
-** notice, this list of conditions and the following disclaimer in
-** the documentation and/or other materials provided with the
-** distribution.
-** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
-** the names of its contributors may be used to endorse or promote
-** products derived from this software without specific prior written
-** permission.
-**
-** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#ifndef GRAPHWIDGET_H
-#define GRAPHWIDGET_H
-
-#include <QtWidgets/QGraphicsView>
-
-class Node;
-
-//! [0]
-class GraphWidget : public QGraphicsView
-{
- Q_OBJECT
-
-public:
- GraphWidget(QWidget *parent = 0);
-
- void itemMoved();
-
-public slots:
- void shuffle();
- void zoomIn();
- void zoomOut();
-
-protected:
- void keyPressEvent(QKeyEvent *event);
- void timerEvent(QTimerEvent *event);
- void wheelEvent(QWheelEvent *event);
- void drawBackground(QPainter *painter, const QRectF &rect);
-
- void scaleView(qreal scaleFactor);
-
-private:
- int timerId;
- Node *centerNode;
-};
-//! [0]
-
-#endif
diff --git a/examples/graphicsview/elasticnodes/main.cpp b/examples/graphicsview/elasticnodes/main.cpp
deleted file mode 100644
index 239b8290ea..0000000000
--- a/examples/graphicsview/elasticnodes/main.cpp
+++ /dev/null
@@ -1,57 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
-** Contact: http://www.qt-project.org/
-**
-** This file is part of the examples of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** You may use this file under the terms of the BSD license as follows:
-**
-** "Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are
-** met:
-** * Redistributions of source code must retain the above copyright
-** notice, this list of conditions and the following disclaimer.
-** * Redistributions in binary form must reproduce the above copyright
-** notice, this list of conditions and the following disclaimer in
-** the documentation and/or other materials provided with the
-** distribution.
-** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
-** the names of its contributors may be used to endorse or promote
-** products derived from this software without specific prior written
-** permission.
-**
-** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include <QtWidgets>
-
-#include "graphwidget.h"
-
-int main(int argc, char **argv)
-{
- QApplication app(argc, argv);
- qsrand(QTime(0,0,0).secsTo(QTime::currentTime()));
-
- GraphWidget *widget = new GraphWidget;
-
- QMainWindow mainWindow;
- mainWindow.setCentralWidget(widget);
-
- mainWindow.show();
- return app.exec();
-}
diff --git a/examples/graphicsview/elasticnodes/node.cpp b/examples/graphicsview/elasticnodes/node.cpp
deleted file mode 100644
index dad226a5e6..0000000000
--- a/examples/graphicsview/elasticnodes/node.cpp
+++ /dev/null
@@ -1,212 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
-** Contact: http://www.qt-project.org/
-**
-** This file is part of the examples of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** You may use this file under the terms of the BSD license as follows:
-**
-** "Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are
-** met:
-** * Redistributions of source code must retain the above copyright
-** notice, this list of conditions and the following disclaimer.
-** * Redistributions in binary form must reproduce the above copyright
-** notice, this list of conditions and the following disclaimer in
-** the documentation and/or other materials provided with the
-** distribution.
-** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
-** the names of its contributors may be used to endorse or promote
-** products derived from this software without specific prior written
-** permission.
-**
-** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include <QGraphicsScene>
-#include <QGraphicsSceneMouseEvent>
-#include <QPainter>
-#include <QStyleOption>
-
-#include "edge.h"
-#include "node.h"
-#include "graphwidget.h"
-
-//! [0]
-Node::Node(GraphWidget *graphWidget)
- : graph(graphWidget)
-{
- setFlag(ItemIsMovable);
- setFlag(ItemSendsGeometryChanges);
- setCacheMode(DeviceCoordinateCache);
- setZValue(-1);
-}
-//! [0]
-
-//! [1]
-void Node::addEdge(Edge *edge)
-{
- edgeList << edge;
- edge->adjust();
-}
-
-QList<Edge *> Node::edges() const
-{
- return edgeList;
-}
-//! [1]
-
-//! [2]
-void Node::calculateForces()
-{
- if (!scene() || scene()->mouseGrabberItem() == this) {
- newPos = pos();
- return;
- }
-//! [2]
-
-//! [3]
- // Sum up all forces pushing this item away
- qreal xvel = 0;
- qreal yvel = 0;
- foreach (QGraphicsItem *item, scene()->items()) {
- Node *node = qgraphicsitem_cast<Node *>(item);
- if (!node)
- continue;
-
- QPointF vec = mapToItem(node, 0, 0);
- qreal dx = vec.x();
- qreal dy = vec.y();
- double l = 2.0 * (dx * dx + dy * dy);
- if (l > 0) {
- xvel += (dx * 150.0) / l;
- yvel += (dy * 150.0) / l;
- }
- }
-//! [3]
-
-//! [4]
- // Now subtract all forces pulling items together
- double weight = (edgeList.size() + 1) * 10;
- foreach (Edge *edge, edgeList) {
- QPointF vec;
- if (edge->sourceNode() == this)
- vec = mapToItem(edge->destNode(), 0, 0);
- else
- vec = mapToItem(edge->sourceNode(), 0, 0);
- xvel -= vec.x() / weight;
- yvel -= vec.y() / weight;
- }
-//! [4]
-
-//! [5]
- if (qAbs(xvel) < 0.1 && qAbs(yvel) < 0.1)
- xvel = yvel = 0;
-//! [5]
-
-//! [6]
- QRectF sceneRect = scene()->sceneRect();
- newPos = pos() + QPointF(xvel, yvel);
- newPos.setX(qMin(qMax(newPos.x(), sceneRect.left() + 10), sceneRect.right() - 10));
- newPos.setY(qMin(qMax(newPos.y(), sceneRect.top() + 10), sceneRect.bottom() - 10));
-}
-//! [6]
-
-//! [7]
-bool Node::advance()
-{
- if (newPos == pos())
- return false;
-
- setPos(newPos);
- return true;
-}
-//! [7]
-
-//! [8]
-QRectF Node::boundingRect() const
-{
- qreal adjust = 2;
- return QRectF( -10 - adjust, -10 - adjust,
- 23 + adjust, 23 + adjust);
-}
-//! [8]
-
-//! [9]
-QPainterPath Node::shape() const
-{
- QPainterPath path;
- path.addEllipse(-10, -10, 20, 20);
- return path;
-}
-//! [9]
-
-//! [10]
-void Node::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *)
-{
- painter->setPen(Qt::NoPen);
- painter->setBrush(Qt::darkGray);
- painter->drawEllipse(-7, -7, 20, 20);
-
- QRadialGradient gradient(-3, -3, 10);
- if (option->state & QStyle::State_Sunken) {
- gradient.setCenter(3, 3);
- gradient.setFocalPoint(3, 3);
- gradient.setColorAt(1, QColor(Qt::yellow).light(120));
- gradient.setColorAt(0, QColor(Qt::darkYellow).light(120));
- } else {
- gradient.setColorAt(0, Qt::yellow);
- gradient.setColorAt(1, Qt::darkYellow);
- }
- painter->setBrush(gradient);
-
- painter->setPen(QPen(Qt::black, 0));
- painter->drawEllipse(-10, -10, 20, 20);
-}
-//! [10]
-
-//! [11]
-QVariant Node::itemChange(GraphicsItemChange change, const QVariant &value)
-{
- switch (change) {
- case ItemPositionHasChanged:
- foreach (Edge *edge, edgeList)
- edge->adjust();
- graph->itemMoved();
- break;
- default:
- break;
- };
-
- return QGraphicsItem::itemChange(change, value);
-}
-//! [11]
-
-//! [12]
-void Node::mousePressEvent(QGraphicsSceneMouseEvent *event)
-{
- update();
- QGraphicsItem::mousePressEvent(event);
-}
-
-void Node::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
-{
- update();
- QGraphicsItem::mouseReleaseEvent(event);
-}
-//! [12]
diff --git a/examples/graphicsview/elasticnodes/node.h b/examples/graphicsview/elasticnodes/node.h
deleted file mode 100644
index 86ca407e08..0000000000
--- a/examples/graphicsview/elasticnodes/node.h
+++ /dev/null
@@ -1,85 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
-** Contact: http://www.qt-project.org/
-**
-** This file is part of the examples of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** You may use this file under the terms of the BSD license as follows:
-**
-** "Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are
-** met:
-** * Redistributions of source code must retain the above copyright
-** notice, this list of conditions and the following disclaimer.
-** * Redistributions in binary form must reproduce the above copyright
-** notice, this list of conditions and the following disclaimer in
-** the documentation and/or other materials provided with the
-** distribution.
-** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
-** the names of its contributors may be used to endorse or promote
-** products derived from this software without specific prior written
-** permission.
-**
-** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#ifndef NODE_H
-#define NODE_H
-
-#include <QGraphicsItem>
-#include <QList>
-
-class Edge;
-class GraphWidget;
-QT_BEGIN_NAMESPACE
-class QGraphicsSceneMouseEvent;
-QT_END_NAMESPACE
-
-//! [0]
-class Node : public QGraphicsItem
-{
-public:
- Node(GraphWidget *graphWidget);
-
- void addEdge(Edge *edge);
- QList<Edge *> edges() const;
-
- enum { Type = UserType + 1 };
- int type() const { return Type; }
-
- void calculateForces();
- bool advance();
-
- QRectF boundingRect() const;
- QPainterPath shape() const;
- void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
-
-protected:
- QVariant itemChange(GraphicsItemChange change, const QVariant &value);
-
- void mousePressEvent(QGraphicsSceneMouseEvent *event);
- void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
-
-private:
- QList<Edge *> edgeList;
- QPointF newPos;
- GraphWidget *graph;
-};
-//! [0]
-
-#endif