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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/widgets/graphicsview/diagramscene
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/widgets/graphicsview/diagramscene')
-rw-r--r--examples/widgets/graphicsview/diagramscene/arrow.cpp145
-rw-r--r--examples/widgets/graphicsview/diagramscene/arrow.h91
-rw-r--r--examples/widgets/graphicsview/diagramscene/diagramitem.cpp152
-rw-r--r--examples/widgets/graphicsview/diagramscene/diagramitem.h96
-rw-r--r--examples/widgets/graphicsview/diagramscene/diagramscene.cpp240
-rw-r--r--examples/widgets/graphicsview/diagramscene/diagramscene.desktop11
-rw-r--r--examples/widgets/graphicsview/diagramscene/diagramscene.h112
-rw-r--r--examples/widgets/graphicsview/diagramscene/diagramscene.pro23
-rw-r--r--examples/widgets/graphicsview/diagramscene/diagramscene.qrc20
-rw-r--r--examples/widgets/graphicsview/diagramscene/diagramtextitem.cpp81
-rw-r--r--examples/widgets/graphicsview/diagramscene/diagramtextitem.h78
-rw-r--r--examples/widgets/graphicsview/diagramscene/images/background1.pngbin0 -> 112 bytes
-rw-r--r--examples/widgets/graphicsview/diagramscene/images/background2.pngbin0 -> 114 bytes
-rw-r--r--examples/widgets/graphicsview/diagramscene/images/background3.pngbin0 -> 116 bytes
-rw-r--r--examples/widgets/graphicsview/diagramscene/images/background4.pngbin0 -> 96 bytes
-rw-r--r--examples/widgets/graphicsview/diagramscene/images/bold.pngbin0 -> 274 bytes
-rw-r--r--examples/widgets/graphicsview/diagramscene/images/bringtofront.pngbin0 -> 293 bytes
-rw-r--r--examples/widgets/graphicsview/diagramscene/images/delete.pngbin0 -> 831 bytes
-rw-r--r--examples/widgets/graphicsview/diagramscene/images/floodfill.pngbin0 -> 282 bytes
-rw-r--r--examples/widgets/graphicsview/diagramscene/images/italic.pngbin0 -> 247 bytes
-rw-r--r--examples/widgets/graphicsview/diagramscene/images/linecolor.pngbin0 -> 145 bytes
-rw-r--r--examples/widgets/graphicsview/diagramscene/images/linepointer.pngbin0 -> 141 bytes
-rw-r--r--examples/widgets/graphicsview/diagramscene/images/pointer.pngbin0 -> 173 bytes
-rw-r--r--examples/widgets/graphicsview/diagramscene/images/sendtoback.pngbin0 -> 318 bytes
-rw-r--r--examples/widgets/graphicsview/diagramscene/images/textpointer.pngbin0 -> 753 bytes
-rw-r--r--examples/widgets/graphicsview/diagramscene/images/underline.pngbin0 -> 250 bytes
-rw-r--r--examples/widgets/graphicsview/diagramscene/main.cpp55
-rw-r--r--examples/widgets/graphicsview/diagramscene/mainwindow.cpp661
-rw-r--r--examples/widgets/graphicsview/diagramscene/mainwindow.h150
29 files changed, 1915 insertions, 0 deletions
diff --git a/examples/widgets/graphicsview/diagramscene/arrow.cpp b/examples/widgets/graphicsview/diagramscene/arrow.cpp
new file mode 100644
index 0000000000..236d836e13
--- /dev/null
+++ b/examples/widgets/graphicsview/diagramscene/arrow.cpp
@@ -0,0 +1,145 @@
+/****************************************************************************
+**
+** 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 "arrow.h"
+#include <math.h>
+
+const qreal Pi = 3.14;
+
+//! [0]
+Arrow::Arrow(DiagramItem *startItem, DiagramItem *endItem, QGraphicsItem *parent)
+ : QGraphicsLineItem(parent)
+{
+ myStartItem = startItem;
+ myEndItem = endItem;
+ setFlag(QGraphicsItem::ItemIsSelectable, true);
+ myColor = Qt::black;
+ setPen(QPen(myColor, 2, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin));
+}
+//! [0]
+
+//! [1]
+QRectF Arrow::boundingRect() const
+{
+ qreal extra = (pen().width() + 20) / 2.0;
+
+ return QRectF(line().p1(), QSizeF(line().p2().x() - line().p1().x(),
+ line().p2().y() - line().p1().y()))
+ .normalized()
+ .adjusted(-extra, -extra, extra, extra);
+}
+//! [1]
+
+//! [2]
+QPainterPath Arrow::shape() const
+{
+ QPainterPath path = QGraphicsLineItem::shape();
+ path.addPolygon(arrowHead);
+ return path;
+}
+//! [2]
+
+//! [3]
+void Arrow::updatePosition()
+{
+ QLineF line(mapFromItem(myStartItem, 0, 0), mapFromItem(myEndItem, 0, 0));
+ setLine(line);
+}
+//! [3]
+
+//! [4]
+void Arrow::paint(QPainter *painter, const QStyleOptionGraphicsItem *,
+ QWidget *)
+{
+ if (myStartItem->collidesWithItem(myEndItem))
+ return;
+
+ QPen myPen = pen();
+ myPen.setColor(myColor);
+ qreal arrowSize = 20;
+ painter->setPen(myPen);
+ painter->setBrush(myColor);
+//! [4] //! [5]
+
+ QLineF centerLine(myStartItem->pos(), myEndItem->pos());
+ QPolygonF endPolygon = myEndItem->polygon();
+ QPointF p1 = endPolygon.first() + myEndItem->pos();
+ QPointF p2;
+ QPointF intersectPoint;
+ QLineF polyLine;
+ for (int i = 1; i < endPolygon.count(); ++i) {
+ p2 = endPolygon.at(i) + myEndItem->pos();
+ polyLine = QLineF(p1, p2);
+ QLineF::IntersectType intersectType =
+ polyLine.intersect(centerLine, &intersectPoint);
+ if (intersectType == QLineF::BoundedIntersection)
+ break;
+ p1 = p2;
+ }
+
+ setLine(QLineF(intersectPoint, myStartItem->pos()));
+//! [5] //! [6]
+
+ double angle = ::acos(line().dx() / line().length());
+ if (line().dy() >= 0)
+ angle = (Pi * 2) - angle;
+
+ QPointF arrowP1 = line().p1() + QPointF(sin(angle + Pi / 3) * arrowSize,
+ cos(angle + Pi / 3) * arrowSize);
+ QPointF arrowP2 = line().p1() + QPointF(sin(angle + Pi - Pi / 3) * arrowSize,
+ cos(angle + Pi - Pi / 3) * arrowSize);
+
+ arrowHead.clear();
+ arrowHead << line().p1() << arrowP1 << arrowP2;
+//! [6] //! [7]
+ painter->drawLine(line());
+ painter->drawPolygon(arrowHead);
+ if (isSelected()) {
+ painter->setPen(QPen(myColor, 1, Qt::DashLine));
+ QLineF myLine = line();
+ myLine.translate(0, 4.0);
+ painter->drawLine(myLine);
+ myLine.translate(0,-8.0);
+ painter->drawLine(myLine);
+ }
+}
+//! [7]
diff --git a/examples/widgets/graphicsview/diagramscene/arrow.h b/examples/widgets/graphicsview/diagramscene/arrow.h
new file mode 100644
index 0000000000..ac09d6ad00
--- /dev/null
+++ b/examples/widgets/graphicsview/diagramscene/arrow.h
@@ -0,0 +1,91 @@
+/****************************************************************************
+**
+** 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 ARROW_H
+#define ARROW_H
+
+#include <QGraphicsLineItem>
+
+#include "diagramitem.h"
+
+QT_BEGIN_NAMESPACE
+class QGraphicsPolygonItem;
+class QGraphicsLineItem;
+class QGraphicsScene;
+class QRectF;
+class QGraphicsSceneMouseEvent;
+class QPainterPath;
+QT_END_NAMESPACE
+
+//! [0]
+class Arrow : public QGraphicsLineItem
+{
+public:
+ enum { Type = UserType + 4 };
+
+ Arrow(DiagramItem *startItem, DiagramItem *endItem,
+ QGraphicsItem *parent = 0);
+
+ int type() const
+ { return Type; }
+ QRectF boundingRect() const;
+ QPainterPath shape() const;
+ void setColor(const QColor &color)
+ { myColor = color; }
+ DiagramItem *startItem() const
+ { return myStartItem; }
+ DiagramItem *endItem() const
+ { return myEndItem; }
+
+ void updatePosition();
+
+protected:
+ void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
+ QWidget *widget = 0);
+
+private:
+ DiagramItem *myStartItem;
+ DiagramItem *myEndItem;
+ QColor myColor;
+ QPolygonF arrowHead;
+};
+//! [0]
+
+#endif
diff --git a/examples/widgets/graphicsview/diagramscene/diagramitem.cpp b/examples/widgets/graphicsview/diagramscene/diagramitem.cpp
new file mode 100644
index 0000000000..9509c30270
--- /dev/null
+++ b/examples/widgets/graphicsview/diagramscene/diagramitem.cpp
@@ -0,0 +1,152 @@
+/****************************************************************************
+**
+** 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 "diagramitem.h"
+#include "arrow.h"
+
+//! [0]
+DiagramItem::DiagramItem(DiagramType diagramType, QMenu *contextMenu,
+ QGraphicsItem *parent)
+ : QGraphicsPolygonItem(parent)
+{
+ myDiagramType = diagramType;
+ myContextMenu = contextMenu;
+
+ QPainterPath path;
+ switch (myDiagramType) {
+ case StartEnd:
+ path.moveTo(200, 50);
+ path.arcTo(150, 0, 50, 50, 0, 90);
+ path.arcTo(50, 0, 50, 50, 90, 90);
+ path.arcTo(50, 50, 50, 50, 180, 90);
+ path.arcTo(150, 50, 50, 50, 270, 90);
+ path.lineTo(200, 25);
+ myPolygon = path.toFillPolygon();
+ break;
+ case Conditional:
+ myPolygon << QPointF(-100, 0) << QPointF(0, 100)
+ << QPointF(100, 0) << QPointF(0, -100)
+ << QPointF(-100, 0);
+ break;
+ case Step:
+ myPolygon << QPointF(-100, -100) << QPointF(100, -100)
+ << QPointF(100, 100) << QPointF(-100, 100)
+ << QPointF(-100, -100);
+ break;
+ default:
+ myPolygon << QPointF(-120, -80) << QPointF(-70, 80)
+ << QPointF(120, 80) << QPointF(70, -80)
+ << QPointF(-120, -80);
+ break;
+ }
+ setPolygon(myPolygon);
+ setFlag(QGraphicsItem::ItemIsMovable, true);
+ setFlag(QGraphicsItem::ItemIsSelectable, true);
+ setFlag(QGraphicsItem::ItemSendsGeometryChanges, true);
+}
+//! [0]
+
+//! [1]
+void DiagramItem::removeArrow(Arrow *arrow)
+{
+ int index = arrows.indexOf(arrow);
+
+ if (index != -1)
+ arrows.removeAt(index);
+}
+//! [1]
+
+//! [2]
+void DiagramItem::removeArrows()
+{
+ foreach (Arrow *arrow, arrows) {
+ arrow->startItem()->removeArrow(arrow);
+ arrow->endItem()->removeArrow(arrow);
+ scene()->removeItem(arrow);
+ delete arrow;
+ }
+}
+//! [2]
+
+//! [3]
+void DiagramItem::addArrow(Arrow *arrow)
+{
+ arrows.append(arrow);
+}
+//! [3]
+
+//! [4]
+QPixmap DiagramItem::image() const
+{
+ QPixmap pixmap(250, 250);
+ pixmap.fill(Qt::transparent);
+ QPainter painter(&pixmap);
+ painter.setPen(QPen(Qt::black, 8));
+ painter.translate(125, 125);
+ painter.drawPolyline(myPolygon);
+
+ return pixmap;
+}
+//! [4]
+
+//! [5]
+void DiagramItem::contextMenuEvent(QGraphicsSceneContextMenuEvent *event)
+{
+ scene()->clearSelection();
+ setSelected(true);
+ myContextMenu->exec(event->screenPos());
+}
+//! [5]
+
+//! [6]
+QVariant DiagramItem::itemChange(GraphicsItemChange change,
+ const QVariant &value)
+{
+ if (change == QGraphicsItem::ItemPositionChange) {
+ foreach (Arrow *arrow, arrows) {
+ arrow->updatePosition();
+ }
+ }
+
+ return value;
+}
+//! [6]
diff --git a/examples/widgets/graphicsview/diagramscene/diagramitem.h b/examples/widgets/graphicsview/diagramscene/diagramitem.h
new file mode 100644
index 0000000000..07b3b6e830
--- /dev/null
+++ b/examples/widgets/graphicsview/diagramscene/diagramitem.h
@@ -0,0 +1,96 @@
+/****************************************************************************
+**
+** 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 DIAGRAMITEM_H
+#define DIAGRAMITEM_H
+
+#include <QGraphicsPixmapItem>
+#include <QList>
+
+QT_BEGIN_NAMESPACE
+class QPixmap;
+class QGraphicsItem;
+class QGraphicsScene;
+class QTextEdit;
+class QGraphicsSceneMouseEvent;
+class QMenu;
+class QGraphicsSceneContextMenuEvent;
+class QPainter;
+class QStyleOptionGraphicsItem;
+class QWidget;
+class QPolygonF;
+QT_END_NAMESPACE
+
+class Arrow;
+
+//! [0]
+class DiagramItem : public QGraphicsPolygonItem
+{
+public:
+ enum { Type = UserType + 15 };
+ enum DiagramType { Step, Conditional, StartEnd, Io };
+
+ DiagramItem(DiagramType diagramType, QMenu *contextMenu,
+ QGraphicsItem *parent = 0);
+
+ void removeArrow(Arrow *arrow);
+ void removeArrows();
+ DiagramType diagramType() const
+ { return myDiagramType; }
+ QPolygonF polygon() const
+ { return myPolygon; }
+ void addArrow(Arrow *arrow);
+ QPixmap image() const;
+ int type() const
+ { return Type;}
+
+protected:
+ void contextMenuEvent(QGraphicsSceneContextMenuEvent *event);
+ QVariant itemChange(GraphicsItemChange change, const QVariant &value);
+
+private:
+ DiagramType myDiagramType;
+ QPolygonF myPolygon;
+ QMenu *myContextMenu;
+ QList<Arrow *> arrows;
+};
+//! [0]
+
+#endif
diff --git a/examples/widgets/graphicsview/diagramscene/diagramscene.cpp b/examples/widgets/graphicsview/diagramscene/diagramscene.cpp
new file mode 100644
index 0000000000..c4a654aa99
--- /dev/null
+++ b/examples/widgets/graphicsview/diagramscene/diagramscene.cpp
@@ -0,0 +1,240 @@
+/****************************************************************************
+**
+** 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 "diagramscene.h"
+#include "arrow.h"
+
+//! [0]
+DiagramScene::DiagramScene(QMenu *itemMenu, QObject *parent)
+ : QGraphicsScene(parent)
+{
+ myItemMenu = itemMenu;
+ myMode = MoveItem;
+ myItemType = DiagramItem::Step;
+ line = 0;
+ textItem = 0;
+ myItemColor = Qt::white;
+ myTextColor = Qt::black;
+ myLineColor = Qt::black;
+}
+//! [0]
+
+//! [1]
+void DiagramScene::setLineColor(const QColor &color)
+{
+ myLineColor = color;
+ if (isItemChange(Arrow::Type)) {
+ Arrow *item =
+ qgraphicsitem_cast<Arrow *>(selectedItems().first());
+ item->setColor(myLineColor);
+ update();
+ }
+}
+//! [1]
+
+//! [2]
+void DiagramScene::setTextColor(const QColor &color)
+{
+ myTextColor = color;
+ if (isItemChange(DiagramTextItem::Type)) {
+ DiagramTextItem *item =
+ qgraphicsitem_cast<DiagramTextItem *>(selectedItems().first());
+ item->setDefaultTextColor(myTextColor);
+ }
+}
+//! [2]
+
+//! [3]
+void DiagramScene::setItemColor(const QColor &color)
+{
+ myItemColor = color;
+ if (isItemChange(DiagramItem::Type)) {
+ DiagramItem *item =
+ qgraphicsitem_cast<DiagramItem *>(selectedItems().first());
+ item->setBrush(myItemColor);
+ }
+}
+//! [3]
+
+//! [4]
+void DiagramScene::setFont(const QFont &font)
+{
+ myFont = font;
+
+ if (isItemChange(DiagramTextItem::Type)) {
+ QGraphicsTextItem *item =
+ qgraphicsitem_cast<DiagramTextItem *>(selectedItems().first());
+ //At this point the selection can change so the first selected item might not be a DiagramTextItem
+ if (item)
+ item->setFont(myFont);
+ }
+}
+//! [4]
+
+void DiagramScene::setMode(Mode mode)
+{
+ myMode = mode;
+}
+
+void DiagramScene::setItemType(DiagramItem::DiagramType type)
+{
+ myItemType = type;
+}
+
+//! [5]
+void DiagramScene::editorLostFocus(DiagramTextItem *item)
+{
+ QTextCursor cursor = item->textCursor();
+ cursor.clearSelection();
+ item->setTextCursor(cursor);
+
+ if (item->toPlainText().isEmpty()) {
+ removeItem(item);
+ item->deleteLater();
+ }
+}
+//! [5]
+
+//! [6]
+void DiagramScene::mousePressEvent(QGraphicsSceneMouseEvent *mouseEvent)
+{
+ if (mouseEvent->button() != Qt::LeftButton)
+ return;
+
+ DiagramItem *item;
+ switch (myMode) {
+ case InsertItem:
+ item = new DiagramItem(myItemType, myItemMenu);
+ item->setBrush(myItemColor);
+ addItem(item);
+ item->setPos(mouseEvent->scenePos());
+ emit itemInserted(item);
+ break;
+//! [6] //! [7]
+ case InsertLine:
+ line = new QGraphicsLineItem(QLineF(mouseEvent->scenePos(),
+ mouseEvent->scenePos()));
+ line->setPen(QPen(myLineColor, 2));
+ addItem(line);
+ break;
+//! [7] //! [8]
+ case InsertText:
+ textItem = new DiagramTextItem();
+ textItem->setFont(myFont);
+ textItem->setTextInteractionFlags(Qt::TextEditorInteraction);
+ textItem->setZValue(1000.0);
+ connect(textItem, SIGNAL(lostFocus(DiagramTextItem*)),
+ this, SLOT(editorLostFocus(DiagramTextItem*)));
+ connect(textItem, SIGNAL(selectedChange(QGraphicsItem*)),
+ this, SIGNAL(itemSelected(QGraphicsItem*)));
+ addItem(textItem);
+ textItem->setDefaultTextColor(myTextColor);
+ textItem->setPos(mouseEvent->scenePos());
+ emit textInserted(textItem);
+//! [8] //! [9]
+ default:
+ ;
+ }
+ QGraphicsScene::mousePressEvent(mouseEvent);
+}
+//! [9]
+
+//! [10]
+void DiagramScene::mouseMoveEvent(QGraphicsSceneMouseEvent *mouseEvent)
+{
+ if (myMode == InsertLine && line != 0) {
+ QLineF newLine(line->line().p1(), mouseEvent->scenePos());
+ line->setLine(newLine);
+ } else if (myMode == MoveItem) {
+ QGraphicsScene::mouseMoveEvent(mouseEvent);
+ }
+}
+//! [10]
+
+//! [11]
+void DiagramScene::mouseReleaseEvent(QGraphicsSceneMouseEvent *mouseEvent)
+{
+ if (line != 0 && myMode == InsertLine) {
+ QList<QGraphicsItem *> startItems = items(line->line().p1());
+ if (startItems.count() && startItems.first() == line)
+ startItems.removeFirst();
+ QList<QGraphicsItem *> endItems = items(line->line().p2());
+ if (endItems.count() && endItems.first() == line)
+ endItems.removeFirst();
+
+ removeItem(line);
+ delete line;
+//! [11] //! [12]
+
+ if (startItems.count() > 0 && endItems.count() > 0 &&
+ startItems.first()->type() == DiagramItem::Type &&
+ endItems.first()->type() == DiagramItem::Type &&
+ startItems.first() != endItems.first()) {
+ DiagramItem *startItem =
+ qgraphicsitem_cast<DiagramItem *>(startItems.first());
+ DiagramItem *endItem =
+ qgraphicsitem_cast<DiagramItem *>(endItems.first());
+ Arrow *arrow = new Arrow(startItem, endItem);
+ arrow->setColor(myLineColor);
+ startItem->addArrow(arrow);
+ endItem->addArrow(arrow);
+ arrow->setZValue(-1000.0);
+ addItem(arrow);
+ arrow->updatePosition();
+ }
+ }
+//! [12] //! [13]
+ line = 0;
+ QGraphicsScene::mouseReleaseEvent(mouseEvent);
+}
+//! [13]
+
+//! [14]
+bool DiagramScene::isItemChange(int type)
+{
+ foreach (QGraphicsItem *item, selectedItems()) {
+ if (item->type() == type)
+ return true;
+ }
+ return false;
+}
+//! [14]
diff --git a/examples/widgets/graphicsview/diagramscene/diagramscene.desktop b/examples/widgets/graphicsview/diagramscene/diagramscene.desktop
new file mode 100644
index 0000000000..54506ff979
--- /dev/null
+++ b/examples/widgets/graphicsview/diagramscene/diagramscene.desktop
@@ -0,0 +1,11 @@
+[Desktop Entry]
+Encoding=UTF-8
+Version=1.0
+Type=Application
+Terminal=false
+Name=Diagram Scene
+Exec=/opt/usr/bin/diagramscene
+Icon=diagramscene
+X-Window-Icon=
+X-HildonDesk-ShowInToolbar=true
+X-Osso-Type=application/x-executable
diff --git a/examples/widgets/graphicsview/diagramscene/diagramscene.h b/examples/widgets/graphicsview/diagramscene/diagramscene.h
new file mode 100644
index 0000000000..9f65eba890
--- /dev/null
+++ b/examples/widgets/graphicsview/diagramscene/diagramscene.h
@@ -0,0 +1,112 @@
+/****************************************************************************
+**
+** 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 DIAGRAMSCENE_H
+#define DIAGRAMSCENE_H
+
+#include <QGraphicsScene>
+#include "diagramitem.h"
+#include "diagramtextitem.h"
+
+QT_BEGIN_NAMESPACE
+class QGraphicsSceneMouseEvent;
+class QMenu;
+class QPointF;
+class QGraphicsLineItem;
+class QFont;
+class QGraphicsTextItem;
+class QColor;
+QT_END_NAMESPACE
+
+//! [0]
+class DiagramScene : public QGraphicsScene
+{
+ Q_OBJECT
+
+public:
+ enum Mode { InsertItem, InsertLine, InsertText, MoveItem };
+
+ DiagramScene(QMenu *itemMenu, QObject *parent = 0);
+ QFont font() const
+ { return myFont; }
+ QColor textColor() const
+ { return myTextColor; }
+ QColor itemColor() const
+ { return myItemColor; }
+ QColor lineColor() const
+ { return myLineColor; }
+ void setLineColor(const QColor &color);
+ void setTextColor(const QColor &color);
+ void setItemColor(const QColor &color);
+ void setFont(const QFont &font);
+
+public slots:
+ void setMode(Mode mode);
+ void setItemType(DiagramItem::DiagramType type);
+ void editorLostFocus(DiagramTextItem *item);
+
+signals:
+ void itemInserted(DiagramItem *item);
+ void textInserted(QGraphicsTextItem *item);
+ void itemSelected(QGraphicsItem *item);
+
+protected:
+ void mousePressEvent(QGraphicsSceneMouseEvent *mouseEvent);
+ void mouseMoveEvent(QGraphicsSceneMouseEvent *mouseEvent);
+ void mouseReleaseEvent(QGraphicsSceneMouseEvent *mouseEvent);
+
+private:
+ bool isItemChange(int type);
+
+ DiagramItem::DiagramType myItemType;
+ QMenu *myItemMenu;
+ Mode myMode;
+ bool leftButtonDown;
+ QPointF startPoint;
+ QGraphicsLineItem *line;
+ QFont myFont;
+ DiagramTextItem *textItem;
+ QColor myTextColor;
+ QColor myItemColor;
+ QColor myLineColor;
+};
+//! [0]
+
+#endif
diff --git a/examples/widgets/graphicsview/diagramscene/diagramscene.pro b/examples/widgets/graphicsview/diagramscene/diagramscene.pro
new file mode 100644
index 0000000000..e45f4a894b
--- /dev/null
+++ b/examples/widgets/graphicsview/diagramscene/diagramscene.pro
@@ -0,0 +1,23 @@
+HEADERS = mainwindow.h \
+ diagramitem.h \
+ diagramscene.h \
+ arrow.h \
+ diagramtextitem.h
+SOURCES = mainwindow.cpp \
+ diagramitem.cpp \
+ main.cpp \
+ arrow.cpp \
+ diagramtextitem.cpp \
+ diagramscene.cpp
+RESOURCES = diagramscene.qrc
+
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/qtbase/graphicsview/diagramscene
+sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS diagramscene.pro images
+sources.path = $$[QT_INSTALL_EXAMPLES]/qtbase/graphicsview/diagramscene
+INSTALLS += target sources
+
+
+QT += widgets
+simulator: warning(This example might not fully work on Simulator platform)
diff --git a/examples/widgets/graphicsview/diagramscene/diagramscene.qrc b/examples/widgets/graphicsview/diagramscene/diagramscene.qrc
new file mode 100644
index 0000000000..a11158402f
--- /dev/null
+++ b/examples/widgets/graphicsview/diagramscene/diagramscene.qrc
@@ -0,0 +1,20 @@
+<!DOCTYPE RCC><RCC version="1.0">
+<qresource>
+ <file>images/pointer.png</file>
+ <file>images/linepointer.png</file>
+ <file>images/textpointer.png</file>
+ <file>images/bold.png</file>
+ <file>images/italic.png</file>
+ <file>images/underline.png</file>
+ <file>images/floodfill.png</file>
+ <file>images/bringtofront.png</file>
+ <file>images/delete.png</file>
+ <file>images/sendtoback.png</file>
+ <file>images/linecolor.png</file>
+ <file>images/background1.png</file>
+ <file>images/background2.png</file>
+ <file>images/background3.png</file>
+ <file>images/background4.png</file>
+</qresource>
+</RCC>
+
diff --git a/examples/widgets/graphicsview/diagramscene/diagramtextitem.cpp b/examples/widgets/graphicsview/diagramscene/diagramtextitem.cpp
new file mode 100644
index 0000000000..1e583045da
--- /dev/null
+++ b/examples/widgets/graphicsview/diagramscene/diagramtextitem.cpp
@@ -0,0 +1,81 @@
+/****************************************************************************
+**
+** 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 "diagramtextitem.h"
+#include "diagramscene.h"
+
+//! [0]
+DiagramTextItem::DiagramTextItem(QGraphicsItem *parent)
+ : QGraphicsTextItem(parent)
+{
+ setFlag(QGraphicsItem::ItemIsMovable);
+ setFlag(QGraphicsItem::ItemIsSelectable);
+}
+//! [0]
+
+//! [1]
+QVariant DiagramTextItem::itemChange(GraphicsItemChange change,
+ const QVariant &value)
+{
+ if (change == QGraphicsItem::ItemSelectedHasChanged)
+ emit selectedChange(this);
+ return value;
+}
+//! [1]
+
+//! [2]
+void DiagramTextItem::focusOutEvent(QFocusEvent *event)
+{
+ setTextInteractionFlags(Qt::NoTextInteraction);
+ emit lostFocus(this);
+ QGraphicsTextItem::focusOutEvent(event);
+}
+//! [2]
+
+//! [5]
+void DiagramTextItem::mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event)
+{
+ if (textInteractionFlags() == Qt::NoTextInteraction)
+ setTextInteractionFlags(Qt::TextEditorInteraction);
+ QGraphicsTextItem::mouseDoubleClickEvent(event);
+}
+//! [5]
diff --git a/examples/widgets/graphicsview/diagramscene/diagramtextitem.h b/examples/widgets/graphicsview/diagramscene/diagramtextitem.h
new file mode 100644
index 0000000000..611e9b6700
--- /dev/null
+++ b/examples/widgets/graphicsview/diagramscene/diagramtextitem.h
@@ -0,0 +1,78 @@
+/****************************************************************************
+**
+** 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 DIAGRAMTEXTITEM_H
+#define DIAGRAMTEXTITEM_H
+
+#include <QGraphicsTextItem>
+#include <QPen>
+
+QT_BEGIN_NAMESPACE
+class QFocusEvent;
+class QGraphicsItem;
+class QGraphicsScene;
+class QGraphicsSceneMouseEvent;
+QT_END_NAMESPACE
+
+//! [0]
+class DiagramTextItem : public QGraphicsTextItem
+{
+ Q_OBJECT
+
+public:
+ enum { Type = UserType + 3 };
+
+ DiagramTextItem(QGraphicsItem *parent = 0);
+
+ int type() const
+ { return Type; }
+
+signals:
+ void lostFocus(DiagramTextItem *item);
+ void selectedChange(QGraphicsItem *item);
+
+protected:
+ QVariant itemChange(GraphicsItemChange change, const QVariant &value);
+ void focusOutEvent(QFocusEvent *event);
+ void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event);
+};
+//! [0]
+
+#endif
diff --git a/examples/widgets/graphicsview/diagramscene/images/background1.png b/examples/widgets/graphicsview/diagramscene/images/background1.png
new file mode 100644
index 0000000000..0f93c6bf42
--- /dev/null
+++ b/examples/widgets/graphicsview/diagramscene/images/background1.png
Binary files differ
diff --git a/examples/widgets/graphicsview/diagramscene/images/background2.png b/examples/widgets/graphicsview/diagramscene/images/background2.png
new file mode 100644
index 0000000000..1e293db67a
--- /dev/null
+++ b/examples/widgets/graphicsview/diagramscene/images/background2.png
Binary files differ
diff --git a/examples/widgets/graphicsview/diagramscene/images/background3.png b/examples/widgets/graphicsview/diagramscene/images/background3.png
new file mode 100644
index 0000000000..3db4f8ea5f
--- /dev/null
+++ b/examples/widgets/graphicsview/diagramscene/images/background3.png
Binary files differ
diff --git a/examples/widgets/graphicsview/diagramscene/images/background4.png b/examples/widgets/graphicsview/diagramscene/images/background4.png
new file mode 100644
index 0000000000..9c1f3bfd77
--- /dev/null
+++ b/examples/widgets/graphicsview/diagramscene/images/background4.png
Binary files differ
diff --git a/examples/widgets/graphicsview/diagramscene/images/bold.png b/examples/widgets/graphicsview/diagramscene/images/bold.png
new file mode 100644
index 0000000000..986e65e250
--- /dev/null
+++ b/examples/widgets/graphicsview/diagramscene/images/bold.png
Binary files differ
diff --git a/examples/widgets/graphicsview/diagramscene/images/bringtofront.png b/examples/widgets/graphicsview/diagramscene/images/bringtofront.png
new file mode 100644
index 0000000000..bda27578a2
--- /dev/null
+++ b/examples/widgets/graphicsview/diagramscene/images/bringtofront.png
Binary files differ
diff --git a/examples/widgets/graphicsview/diagramscene/images/delete.png b/examples/widgets/graphicsview/diagramscene/images/delete.png
new file mode 100644
index 0000000000..df2a147d24
--- /dev/null
+++ b/examples/widgets/graphicsview/diagramscene/images/delete.png
Binary files differ
diff --git a/examples/widgets/graphicsview/diagramscene/images/floodfill.png b/examples/widgets/graphicsview/diagramscene/images/floodfill.png
new file mode 100644
index 0000000000..54c0dae237
--- /dev/null
+++ b/examples/widgets/graphicsview/diagramscene/images/floodfill.png
Binary files differ
diff --git a/examples/widgets/graphicsview/diagramscene/images/italic.png b/examples/widgets/graphicsview/diagramscene/images/italic.png
new file mode 100644
index 0000000000..9a438b57ad
--- /dev/null
+++ b/examples/widgets/graphicsview/diagramscene/images/italic.png
Binary files differ
diff --git a/examples/widgets/graphicsview/diagramscene/images/linecolor.png b/examples/widgets/graphicsview/diagramscene/images/linecolor.png
new file mode 100644
index 0000000000..98a821f27e
--- /dev/null
+++ b/examples/widgets/graphicsview/diagramscene/images/linecolor.png
Binary files differ
diff --git a/examples/widgets/graphicsview/diagramscene/images/linepointer.png b/examples/widgets/graphicsview/diagramscene/images/linepointer.png
new file mode 100644
index 0000000000..66933d43b3
--- /dev/null
+++ b/examples/widgets/graphicsview/diagramscene/images/linepointer.png
Binary files differ
diff --git a/examples/widgets/graphicsview/diagramscene/images/pointer.png b/examples/widgets/graphicsview/diagramscene/images/pointer.png
new file mode 100644
index 0000000000..0b0b0aa69d
--- /dev/null
+++ b/examples/widgets/graphicsview/diagramscene/images/pointer.png
Binary files differ
diff --git a/examples/widgets/graphicsview/diagramscene/images/sendtoback.png b/examples/widgets/graphicsview/diagramscene/images/sendtoback.png
new file mode 100644
index 0000000000..5aa3b0a243
--- /dev/null
+++ b/examples/widgets/graphicsview/diagramscene/images/sendtoback.png
Binary files differ
diff --git a/examples/widgets/graphicsview/diagramscene/images/textpointer.png b/examples/widgets/graphicsview/diagramscene/images/textpointer.png
new file mode 100644
index 0000000000..b25832cada
--- /dev/null
+++ b/examples/widgets/graphicsview/diagramscene/images/textpointer.png
Binary files differ
diff --git a/examples/widgets/graphicsview/diagramscene/images/underline.png b/examples/widgets/graphicsview/diagramscene/images/underline.png
new file mode 100644
index 0000000000..9b8209f525
--- /dev/null
+++ b/examples/widgets/graphicsview/diagramscene/images/underline.png
Binary files differ
diff --git a/examples/widgets/graphicsview/diagramscene/main.cpp b/examples/widgets/graphicsview/diagramscene/main.cpp
new file mode 100644
index 0000000000..33bc97b71f
--- /dev/null
+++ b/examples/widgets/graphicsview/diagramscene/main.cpp
@@ -0,0 +1,55 @@
+/****************************************************************************
+**
+** 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 "mainwindow.h"
+
+int main(int argv, char *args[])
+{
+ Q_INIT_RESOURCE(diagramscene);
+
+ QApplication app(argv, args);
+ MainWindow mainWindow;
+ mainWindow.setGeometry(100, 100, 800, 500);
+ mainWindow.show();
+
+ return app.exec();
+}
diff --git a/examples/widgets/graphicsview/diagramscene/mainwindow.cpp b/examples/widgets/graphicsview/diagramscene/mainwindow.cpp
new file mode 100644
index 0000000000..977730a3bb
--- /dev/null
+++ b/examples/widgets/graphicsview/diagramscene/mainwindow.cpp
@@ -0,0 +1,661 @@
+/****************************************************************************
+**
+** 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 <QLabel>
+
+#include "mainwindow.h"
+#include "diagramitem.h"
+#include "diagramscene.h"
+#include "diagramtextitem.h"
+#include "arrow.h"
+
+const int InsertTextButton = 10;
+
+//! [0]
+MainWindow::MainWindow()
+{
+ createActions();
+ createToolBox();
+ createMenus();
+
+ scene = new DiagramScene(itemMenu, this);
+ scene->setSceneRect(QRectF(0, 0, 5000, 5000));
+ connect(scene, SIGNAL(itemInserted(DiagramItem*)),
+ this, SLOT(itemInserted(DiagramItem*)));
+ connect(scene, SIGNAL(textInserted(QGraphicsTextItem*)),
+ this, SLOT(textInserted(QGraphicsTextItem*)));
+ connect(scene, SIGNAL(itemSelected(QGraphicsItem*)),
+ this, SLOT(itemSelected(QGraphicsItem*)));
+ createToolbars();
+
+ QHBoxLayout *layout = new QHBoxLayout;
+ layout->addWidget(toolBox);
+ view = new QGraphicsView(scene);
+ layout->addWidget(view);
+
+ QWidget *widget = new QWidget;
+ widget->setLayout(layout);
+
+ setCentralWidget(widget);
+ setWindowTitle(tr("Diagramscene"));
+ setUnifiedTitleAndToolBarOnMac(true);
+}
+//! [0]
+
+//! [1]
+void MainWindow::backgroundButtonGroupClicked(QAbstractButton *button)
+{
+ QList<QAbstractButton *> buttons = backgroundButtonGroup->buttons();
+ foreach (QAbstractButton *myButton, buttons) {
+ if (myButton != button)
+ button->setChecked(false);
+ }
+ QString text = button->text();
+ if (text == tr("Blue Grid"))
+ scene->setBackgroundBrush(QPixmap(":/images/background1.png"));
+ else if (text == tr("White Grid"))
+ scene->setBackgroundBrush(QPixmap(":/images/background2.png"));
+ else if (text == tr("Gray Grid"))
+ scene->setBackgroundBrush(QPixmap(":/images/background3.png"));
+ else
+ scene->setBackgroundBrush(QPixmap(":/images/background4.png"));
+
+ scene->update();
+ view->update();
+}
+//! [1]
+
+//! [2]
+void MainWindow::buttonGroupClicked(int id)
+{
+ QList<QAbstractButton *> buttons = buttonGroup->buttons();
+ foreach (QAbstractButton *button, buttons) {
+ if (buttonGroup->button(id) != button)
+ button->setChecked(false);
+ }
+ if (id == InsertTextButton) {
+ scene->setMode(DiagramScene::InsertText);
+ } else {
+ scene->setItemType(DiagramItem::DiagramType(id));
+ scene->setMode(DiagramScene::InsertItem);
+ }
+}
+//! [2]
+
+//! [3]
+void MainWindow::deleteItem()
+{
+ foreach (QGraphicsItem *item, scene->selectedItems()) {
+ if (item->type() == Arrow::Type) {
+ scene->removeItem(item);
+ Arrow *arrow = qgraphicsitem_cast<Arrow *>(item);
+ arrow->startItem()->removeArrow(arrow);
+ arrow->endItem()->removeArrow(arrow);
+ delete item;
+ }
+ }
+
+ foreach (QGraphicsItem *item, scene->selectedItems()) {
+ if (item->type() == DiagramItem::Type) {
+ qgraphicsitem_cast<DiagramItem *>(item)->removeArrows();
+ }
+ scene->removeItem(item);
+ delete item;
+ }
+}
+//! [3]
+
+//! [4]
+void MainWindow::pointerGroupClicked(int)
+{
+ scene->setMode(DiagramScene::Mode(pointerTypeGroup->checkedId()));
+}
+//! [4]
+
+//! [5]
+void MainWindow::bringToFront()
+{
+ if (scene->selectedItems().isEmpty())
+ return;
+
+ QGraphicsItem *selectedItem = scene->selectedItems().first();
+ QList<QGraphicsItem *> overlapItems = selectedItem->collidingItems();
+
+ qreal zValue = 0;
+ foreach (QGraphicsItem *item, overlapItems) {
+ if (item->zValue() >= zValue &&
+ item->type() == DiagramItem::Type)
+ zValue = item->zValue() + 0.1;
+ }
+ selectedItem->setZValue(zValue);
+}
+//! [5]
+
+//! [6]
+void MainWindow::sendToBack()
+{
+ if (scene->selectedItems().isEmpty())
+ return;
+
+ QGraphicsItem *selectedItem = scene->selectedItems().first();
+ QList<QGraphicsItem *> overlapItems = selectedItem->collidingItems();
+
+ qreal zValue = 0;
+ foreach (QGraphicsItem *item, overlapItems) {
+ if (item->zValue() <= zValue &&
+ item->type() == DiagramItem::Type)
+ zValue = item->zValue() - 0.1;
+ }
+ selectedItem->setZValue(zValue);
+}
+//! [6]
+
+//! [7]
+void MainWindow::itemInserted(DiagramItem *item)
+{
+ pointerTypeGroup->button(int(DiagramScene::MoveItem))->setChecked(true);
+ scene->setMode(DiagramScene::Mode(pointerTypeGroup->checkedId()));
+ buttonGroup->button(int(item->diagramType()))->setChecked(false);
+}
+//! [7]
+
+//! [8]
+void MainWindow::textInserted(QGraphicsTextItem *)
+{
+ buttonGroup->button(InsertTextButton)->setChecked(false);
+ scene->setMode(DiagramScene::Mode(pointerTypeGroup->checkedId()));
+}
+//! [8]
+
+//! [9]
+void MainWindow::currentFontChanged(const QFont &)
+{
+ handleFontChange();
+}
+//! [9]
+
+//! [10]
+void MainWindow::fontSizeChanged(const QString &)
+{
+ handleFontChange();
+}
+//! [10]
+
+//! [11]
+void MainWindow::sceneScaleChanged(const QString &scale)
+{
+ double newScale = scale.left(scale.indexOf(tr("%"))).toDouble() / 100.0;
+ QMatrix oldMatrix = view->matrix();
+ view->resetMatrix();
+ view->translate(oldMatrix.dx(), oldMatrix.dy());
+ view->scale(newScale, newScale);
+}
+//! [11]
+
+//! [12]
+void MainWindow::textColorChanged()
+{
+ textAction = qobject_cast<QAction *>(sender());
+ fontColorToolButton->setIcon(createColorToolButtonIcon(
+ ":/images/textpointer.png",
+ qvariant_cast<QColor>(textAction->data())));
+ textButtonTriggered();
+}
+//! [12]
+
+//! [13]
+void MainWindow::itemColorChanged()
+{
+ fillAction = qobject_cast<QAction *>(sender());
+ fillColorToolButton->setIcon(createColorToolButtonIcon(
+ ":/images/floodfill.png",
+ qvariant_cast<QColor>(fillAction->data())));
+ fillButtonTriggered();
+}
+//! [13]
+
+//! [14]
+void MainWindow::lineColorChanged()
+{
+ lineAction = qobject_cast<QAction *>(sender());
+ lineColorToolButton->setIcon(createColorToolButtonIcon(
+ ":/images/linecolor.png",
+ qvariant_cast<QColor>(lineAction->data())));
+ lineButtonTriggered();
+}
+//! [14]
+
+//! [15]
+void MainWindow::textButtonTriggered()
+{
+ scene->setTextColor(qvariant_cast<QColor>(textAction->data()));
+}
+//! [15]
+
+//! [16]
+void MainWindow::fillButtonTriggered()
+{
+ scene->setItemColor(qvariant_cast<QColor>(fillAction->data()));
+}
+//! [16]
+
+//! [17]
+void MainWindow::lineButtonTriggered()
+{
+ scene->setLineColor(qvariant_cast<QColor>(lineAction->data()));
+}
+//! [17]
+
+//! [18]
+void MainWindow::handleFontChange()
+{
+ QFont font = fontCombo->currentFont();
+ font.setPointSize(fontSizeCombo->currentText().toInt());
+ font.setWeight(boldAction->isChecked() ? QFont::Bold : QFont::Normal);
+ font.setItalic(italicAction->isChecked());
+ font.setUnderline(underlineAction->isChecked());
+
+ scene->setFont(font);
+}
+//! [18]
+
+//! [19]
+void MainWindow::itemSelected(QGraphicsItem *item)
+{
+ DiagramTextItem *textItem =
+ qgraphicsitem_cast<DiagramTextItem *>(item);
+
+ QFont font = textItem->font();
+ fontCombo->setCurrentFont(font);
+ fontSizeCombo->setEditText(QString().setNum(font.pointSize()));
+ boldAction->setChecked(font.weight() == QFont::Bold);
+ italicAction->setChecked(font.italic());
+ underlineAction->setChecked(font.underline());
+}
+//! [19]
+
+//! [20]
+void MainWindow::about()
+{
+ QMessageBox::about(this, tr("About Diagram Scene"),
+ tr("The <b>Diagram Scene</b> example shows "
+ "use of the graphics framework."));
+}
+//! [20]
+
+//! [21]
+void MainWindow::createToolBox()
+{
+ buttonGroup = new QButtonGroup(this);
+ buttonGroup->setExclusive(false);
+ connect(buttonGroup, SIGNAL(buttonClicked(int)),
+ this, SLOT(buttonGroupClicked(int)));
+ QGridLayout *layout = new QGridLayout;
+ layout->addWidget(createCellWidget(tr("Conditional"),
+ DiagramItem::Conditional), 0, 0);
+ layout->addWidget(createCellWidget(tr("Process"),
+ DiagramItem::Step),0, 1);
+ layout->addWidget(createCellWidget(tr("Input/Output"),
+ DiagramItem::Io), 1, 0);
+//! [21]
+
+ QToolButton *textButton = new QToolButton;
+ textButton->setCheckable(true);
+ buttonGroup->addButton(textButton, InsertTextButton);
+ textButton->setIcon(QIcon(QPixmap(":/images/textpointer.png")
+ .scaled(30, 30)));
+ textButton->setIconSize(QSize(50, 50));
+ QGridLayout *textLayout = new QGridLayout;
+ textLayout->addWidget(textButton, 0, 0, Qt::AlignHCenter);
+ textLayout->addWidget(new QLabel(tr("Text")), 1, 0, Qt::AlignCenter);
+ QWidget *textWidget = new QWidget;
+ textWidget->setLayout(textLayout);
+ layout->addWidget(textWidget, 1, 1);
+
+ layout->setRowStretch(3, 10);
+ layout->setColumnStretch(2, 10);
+
+ QWidget *itemWidget = new QWidget;
+ itemWidget->setLayout(layout);
+
+ backgroundButtonGroup = new QButtonGroup(this);
+ connect(backgroundButtonGroup, SIGNAL(buttonClicked(QAbstractButton*)),
+ this, SLOT(backgroundButtonGroupClicked(QAbstractButton*)));
+
+ QGridLayout *backgroundLayout = new QGridLayout;
+ backgroundLayout->addWidget(createBackgroundCellWidget(tr("Blue Grid"),
+ ":/images/background1.png"), 0, 0);
+ backgroundLayout->addWidget(createBackgroundCellWidget(tr("White Grid"),
+ ":/images/background2.png"), 0, 1);
+ backgroundLayout->addWidget(createBackgroundCellWidget(tr("Gray Grid"),
+ ":/images/background3.png"), 1, 0);
+ backgroundLayout->addWidget(createBackgroundCellWidget(tr("No Grid"),
+ ":/images/background4.png"), 1, 1);
+
+ backgroundLayout->setRowStretch(2, 10);
+ backgroundLayout->setColumnStretch(2, 10);
+
+ QWidget *backgroundWidget = new QWidget;
+ backgroundWidget->setLayout(backgroundLayout);
+
+
+//! [22]
+ toolBox = new QToolBox;
+ toolBox->setSizePolicy(QSizePolicy(QSizePolicy::Maximum, QSizePolicy::Ignored));
+ toolBox->setMinimumWidth(itemWidget->sizeHint().width());
+ toolBox->addItem(itemWidget, tr("Basic Flowchart Shapes"));
+ toolBox->addItem(backgroundWidget, tr("Backgrounds"));
+}
+//! [22]
+
+//! [23]
+void MainWindow::createActions()
+{
+ toFrontAction = new QAction(QIcon(":/images/bringtofront.png"),
+ tr("Bring to &Front"), this);
+ toFrontAction->setShortcut(tr("Ctrl+F"));
+ toFrontAction->setStatusTip(tr("Bring item to front"));
+ connect(toFrontAction, SIGNAL(triggered()),
+ this, SLOT(bringToFront()));
+//! [23]
+
+ sendBackAction = new QAction(QIcon(":/images/sendtoback.png"),
+ tr("Send to &Back"), this);
+ sendBackAction->setShortcut(tr("Ctrl+B"));
+ sendBackAction->setStatusTip(tr("Send item to back"));
+ connect(sendBackAction, SIGNAL(triggered()),
+ this, SLOT(sendToBack()));
+
+ deleteAction = new QAction(QIcon(":/images/delete.png"),
+ tr("&Delete"), this);
+ deleteAction->setShortcut(tr("Delete"));
+ deleteAction->setStatusTip(tr("Delete item from diagram"));
+ connect(deleteAction, SIGNAL(triggered()),
+ this, SLOT(deleteItem()));
+
+ exitAction = new QAction(tr("E&xit"), this);
+ exitAction->setShortcuts(QKeySequence::Quit);
+ exitAction->setStatusTip(tr("Quit Scenediagram example"));
+ connect(exitAction, SIGNAL(triggered()), this, SLOT(close()));
+
+ boldAction = new QAction(tr("Bold"), this);
+ boldAction->setCheckable(true);
+ QPixmap pixmap(":/images/bold.png");
+ boldAction->setIcon(QIcon(pixmap));
+ boldAction->setShortcut(tr("Ctrl+B"));
+ connect(boldAction, SIGNAL(triggered()),
+ this, SLOT(handleFontChange()));
+
+ italicAction = new QAction(QIcon(":/images/italic.png"),
+ tr("Italic"), this);
+ italicAction->setCheckable(true);
+ italicAction->setShortcut(tr("Ctrl+I"));
+ connect(italicAction, SIGNAL(triggered()),
+ this, SLOT(handleFontChange()));
+
+ underlineAction = new QAction(QIcon(":/images/underline.png"),
+ tr("Underline"), this);
+ underlineAction->setCheckable(true);
+ underlineAction->setShortcut(tr("Ctrl+U"));
+ connect(underlineAction, SIGNAL(triggered()),
+ this, SLOT(handleFontChange()));
+
+ aboutAction = new QAction(tr("A&bout"), this);
+ aboutAction->setShortcut(tr("Ctrl+B"));
+ connect(aboutAction, SIGNAL(triggered()),
+ this, SLOT(about()));
+}
+
+//! [24]
+void MainWindow::createMenus()
+{
+ fileMenu = menuBar()->addMenu(tr("&File"));
+ fileMenu->addAction(exitAction);
+
+ itemMenu = menuBar()->addMenu(tr("&Item"));
+ itemMenu->addAction(deleteAction);
+ itemMenu->addSeparator();
+ itemMenu->addAction(toFrontAction);
+ itemMenu->addAction(sendBackAction);
+
+ aboutMenu = menuBar()->addMenu(tr("&Help"));
+ aboutMenu->addAction(aboutAction);
+}
+//! [24]
+
+//! [25]
+void MainWindow::createToolbars()
+{
+//! [25]
+ editToolBar = addToolBar(tr("Edit"));
+ editToolBar->addAction(deleteAction);
+ editToolBar->addAction(toFrontAction);
+ editToolBar->addAction(sendBackAction);
+
+ fontCombo = new QFontComboBox();
+ connect(fontCombo, SIGNAL(currentFontChanged(QFont)),
+ this, SLOT(currentFontChanged(QFont)));
+
+ fontSizeCombo = new QComboBox;
+ fontSizeCombo->setEditable(true);
+ for (int i = 8; i < 30; i = i + 2)
+ fontSizeCombo->addItem(QString().setNum(i));
+ QIntValidator *validator = new QIntValidator(2, 64, this);
+ fontSizeCombo->setValidator(validator);
+ connect(fontSizeCombo, SIGNAL(currentIndexChanged(QString)),
+ this, SLOT(fontSizeChanged(QString)));
+
+ fontColorToolButton = new QToolButton;
+ fontColorToolButton->setPopupMode(QToolButton::MenuButtonPopup);
+ fontColorToolButton->setMenu(createColorMenu(SLOT(textColorChanged()),
+ Qt::black));
+ textAction = fontColorToolButton->menu()->defaultAction();
+ fontColorToolButton->setIcon(createColorToolButtonIcon(
+ ":/images/textpointer.png", Qt::black));
+ fontColorToolButton->setAutoFillBackground(true);
+ connect(fontColorToolButton, SIGNAL(clicked()),
+ this, SLOT(textButtonTriggered()));
+
+//! [26]
+ fillColorToolButton = new QToolButton;
+ fillColorToolButton->setPopupMode(QToolButton::MenuButtonPopup);
+ fillColorToolButton->setMenu(createColorMenu(SLOT(itemColorChanged()),
+ Qt::white));
+ fillAction = fillColorToolButton->menu()->defaultAction();
+ fillColorToolButton->setIcon(createColorToolButtonIcon(
+ ":/images/floodfill.png", Qt::white));
+ connect(fillColorToolButton, SIGNAL(clicked()),
+ this, SLOT(fillButtonTriggered()));
+//! [26]
+
+ lineColorToolButton = new QToolButton;
+ lineColorToolButton->setPopupMode(QToolButton::MenuButtonPopup);
+ lineColorToolButton->setMenu(createColorMenu(SLOT(lineColorChanged()),
+ Qt::black));
+ lineAction = lineColorToolButton->menu()->defaultAction();
+ lineColorToolButton->setIcon(createColorToolButtonIcon(
+ ":/images/linecolor.png", Qt::black));
+ connect(lineColorToolButton, SIGNAL(clicked()),
+ this, SLOT(lineButtonTriggered()));
+
+ textToolBar = addToolBar(tr("Font"));
+ textToolBar->addWidget(fontCombo);
+ textToolBar->addWidget(fontSizeCombo);
+ textToolBar->addAction(boldAction);
+ textToolBar->addAction(italicAction);
+ textToolBar->addAction(underlineAction);
+
+ colorToolBar = addToolBar(tr("Color"));
+ colorToolBar->addWidget(fontColorToolButton);
+ colorToolBar->addWidget(fillColorToolButton);
+ colorToolBar->addWidget(lineColorToolButton);
+
+ QToolButton *pointerButton = new QToolButton;
+ pointerButton->setCheckable(true);
+ pointerButton->setChecked(true);
+ pointerButton->setIcon(QIcon(":/images/pointer.png"));
+ QToolButton *linePointerButton = new QToolButton;
+ linePointerButton->setCheckable(true);
+ linePointerButton->setIcon(QIcon(":/images/linepointer.png"));
+
+ pointerTypeGroup = new QButtonGroup(this);
+ pointerTypeGroup->addButton(pointerButton, int(DiagramScene::MoveItem));
+ pointerTypeGroup->addButton(linePointerButton,
+ int(DiagramScene::InsertLine));
+ connect(pointerTypeGroup, SIGNAL(buttonClicked(int)),
+ this, SLOT(pointerGroupClicked(int)));
+
+ sceneScaleCombo = new QComboBox;
+ QStringList scales;
+ scales << tr("50%") << tr("75%") << tr("100%") << tr("125%") << tr("150%");
+ sceneScaleCombo->addItems(scales);
+ sceneScaleCombo->setCurrentIndex(2);
+ connect(sceneScaleCombo, SIGNAL(currentIndexChanged(QString)),
+ this, SLOT(sceneScaleChanged(QString)));
+
+ pointerToolbar = addToolBar(tr("Pointer type"));
+ pointerToolbar->addWidget(pointerButton);
+ pointerToolbar->addWidget(linePointerButton);
+ pointerToolbar->addWidget(sceneScaleCombo);
+//! [27]
+}
+//! [27]
+
+//! [28]
+QWidget *MainWindow::createBackgroundCellWidget(const QString &text,
+ const QString &image)
+{
+ QToolButton *button = new QToolButton;
+ button->setText(text);
+ button->setIcon(QIcon(image));
+ button->setIconSize(QSize(50, 50));
+ button->setCheckable(true);
+ backgroundButtonGroup->addButton(button);
+
+ QGridLayout *layout = new QGridLayout;
+ layout->addWidget(button, 0, 0, Qt::AlignHCenter);
+ layout->addWidget(new QLabel(text), 1, 0, Qt::AlignCenter);
+
+ QWidget *widget = new QWidget;
+ widget->setLayout(layout);
+
+ return widget;
+}
+//! [28]
+
+//! [29]
+QWidget *MainWindow::createCellWidget(const QString &text,
+ DiagramItem::DiagramType type)
+{
+
+ DiagramItem item(type, itemMenu);
+ QIcon icon(item.image());
+
+ QToolButton *button = new QToolButton;
+ button->setIcon(icon);
+ button->setIconSize(QSize(50, 50));
+ button->setCheckable(true);
+ buttonGroup->addButton(button, int(type));
+
+ QGridLayout *layout = new QGridLayout;
+ layout->addWidget(button, 0, 0, Qt::AlignHCenter);
+ layout->addWidget(new QLabel(text), 1, 0, Qt::AlignCenter);
+
+ QWidget *widget = new QWidget;
+ widget->setLayout(layout);
+
+ return widget;
+}
+//! [29]
+
+//! [30]
+QMenu *MainWindow::createColorMenu(const char *slot, QColor defaultColor)
+{
+ QList<QColor> colors;
+ colors << Qt::black << Qt::white << Qt::red << Qt::blue << Qt::yellow;
+ QStringList names;
+ names << tr("black") << tr("white") << tr("red") << tr("blue")
+ << tr("yellow");
+
+ QMenu *colorMenu = new QMenu(this);
+ for (int i = 0; i < colors.count(); ++i) {
+ QAction *action = new QAction(names.at(i), this);
+ action->setData(colors.at(i));
+ action->setIcon(createColorIcon(colors.at(i)));
+ connect(action, SIGNAL(triggered()),
+ this, slot);
+ colorMenu->addAction(action);
+ if (colors.at(i) == defaultColor) {
+ colorMenu->setDefaultAction(action);
+ }
+ }
+ return colorMenu;
+}
+//! [30]
+
+//! [31]
+QIcon MainWindow::createColorToolButtonIcon(const QString &imageFile,
+ QColor color)
+{
+ QPixmap pixmap(50, 80);
+ pixmap.fill(Qt::transparent);
+ QPainter painter(&pixmap);
+ QPixmap image(imageFile);
+ QRect target(0, 0, 50, 60);
+ QRect source(0, 0, 42, 42);
+ painter.fillRect(QRect(0, 60, 50, 80), color);
+ painter.drawPixmap(target, image, source);
+
+ return QIcon(pixmap);
+}
+//! [31]
+
+//! [32]
+QIcon MainWindow::createColorIcon(QColor color)
+{
+ QPixmap pixmap(20, 20);
+ QPainter painter(&pixmap);
+ painter.setPen(Qt::NoPen);
+ painter.fillRect(QRect(0, 0, 20, 20), color);
+
+ return QIcon(pixmap);
+}
+//! [32]
diff --git a/examples/widgets/graphicsview/diagramscene/mainwindow.h b/examples/widgets/graphicsview/diagramscene/mainwindow.h
new file mode 100644
index 0000000000..e3c0496c79
--- /dev/null
+++ b/examples/widgets/graphicsview/diagramscene/mainwindow.h
@@ -0,0 +1,150 @@
+/****************************************************************************
+**
+** 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 MAINWINDOW_H
+#define MAINWINDOW_H
+
+#include <QMainWindow>
+
+#include "diagramitem.h"
+
+class DiagramScene;
+
+QT_BEGIN_NAMESPACE
+class QAction;
+class QToolBox;
+class QSpinBox;
+class QComboBox;
+class QFontComboBox;
+class QButtonGroup;
+class QLineEdit;
+class QGraphicsTextItem;
+class QFont;
+class QToolButton;
+class QAbstractButton;
+class QGraphicsView;
+QT_END_NAMESPACE
+
+//! [0]
+class MainWindow : public QMainWindow
+{
+ Q_OBJECT
+
+public:
+ MainWindow();
+
+private slots:
+ void backgroundButtonGroupClicked(QAbstractButton *button);
+ void buttonGroupClicked(int id);
+ void deleteItem();
+ void pointerGroupClicked(int id);
+ void bringToFront();
+ void sendToBack();
+ void itemInserted(DiagramItem *item);
+ void textInserted(QGraphicsTextItem *item);
+ void currentFontChanged(const QFont &font);
+ void fontSizeChanged(const QString &size);
+ void sceneScaleChanged(const QString &scale);
+ void textColorChanged();
+ void itemColorChanged();
+ void lineColorChanged();
+ void textButtonTriggered();
+ void fillButtonTriggered();
+ void lineButtonTriggered();
+ void handleFontChange();
+ void itemSelected(QGraphicsItem *item);
+ void about();
+
+private:
+ void createToolBox();
+ void createActions();
+ void createMenus();
+ void createToolbars();
+ QWidget *createBackgroundCellWidget(const QString &text,
+ const QString &image);
+ QWidget *createCellWidget(const QString &text,
+ DiagramItem::DiagramType type);
+ QMenu *createColorMenu(const char *slot, QColor defaultColor);
+ QIcon createColorToolButtonIcon(const QString &image, QColor color);
+ QIcon createColorIcon(QColor color);
+
+ DiagramScene *scene;
+ QGraphicsView *view;
+
+ QAction *exitAction;
+ QAction *addAction;
+ QAction *deleteAction;
+
+ QAction *toFrontAction;
+ QAction *sendBackAction;
+ QAction *aboutAction;
+
+ QMenu *fileMenu;
+ QMenu *itemMenu;
+ QMenu *aboutMenu;
+
+ QToolBar *textToolBar;
+ QToolBar *editToolBar;
+ QToolBar *colorToolBar;
+ QToolBar *pointerToolbar;
+
+ QComboBox *sceneScaleCombo;
+ QComboBox *itemColorCombo;
+ QComboBox *textColorCombo;
+ QComboBox *fontSizeCombo;
+ QFontComboBox *fontCombo;
+
+ QToolBox *toolBox;
+ QButtonGroup *buttonGroup;
+ QButtonGroup *pointerTypeGroup;
+ QButtonGroup *backgroundButtonGroup;
+ QToolButton *fontColorToolButton;
+ QToolButton *fillColorToolButton;
+ QToolButton *lineColorToolButton;
+ QAction *boldAction;
+ QAction *underlineAction;
+ QAction *italicAction;
+ QAction *textAction;
+ QAction *fillAction;
+ QAction *lineAction;
+};
+//! [0]
+
+#endif