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vro aff5997de8 0024665: A sample for advanced function mechanism
PRO file is added + a description of how to generate the Visual Studio projects and compile.
In addition, the sample folder is renamed to FuncDemo.

Adding 64 bit configuration to VC projects
2016-02-20 13:04:31 +03:00

154 lines
4.0 KiB
C++

/****************************************************************************
**
** Copyright (C) 2006-2007 Trolltech ASA. All rights reserved.
**
** This file is part of the example classes of the Qt Toolkit.
**
** Licensees holding a valid Qt License Agreement may use this file in
** accordance with the rights, responsibilities and obligations
** contained therein. Please consult your licensing agreement or
** contact sales@trolltech.com if any conditions of this licensing
** agreement are not clear to you.
**
** Further information about Qt licensing is available at:
** http://www.trolltech.com/products/qt/licensing.html or by
** contacting info@trolltech.com.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
****************************************************************************/
#include <QGraphicsScene>
#include <QGraphicsSceneMouseEvent>
#include <QPainter>
#include <QStyleOption>
#include "edge.h"
#include "node.h"
#include "graphwidget.h"
#include <TFunction_IFunction.hxx>
#include <TFunction_GraphNode.hxx>
#include <TDataStd_Name.hxx>
#include <TDataStd_Tick.hxx>
Node::Node(GraphWidget *graphWidget)
: graph(graphWidget)
{
setFlag(ItemIsMovable);
setZValue(1);
}
void Node::setFunction(const TDF_Label& func)
{
myFunction = func;
}
const TDF_Label& Node::getFunction() const
{
return myFunction;
}
void Node::addEdge(Edge *edge)
{
edgeList << edge;
edge->adjust();
}
QList<Edge *> Node::edges() const
{
return edgeList;
}
QRectF Node::boundingRect() const
{
qreal adjust = 2;
return QRectF(-15 - adjust, -15 - adjust,
33 + adjust, 33 + adjust);
}
QPainterPath Node::shape() const
{
QPainterPath path;
path.addEllipse(-15, -15, 30, 30);
return path;
}
void Node::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *)
{
painter->setPen(Qt::NoPen);
painter->setBrush(Qt::darkGray);
painter->drawEllipse(-12, -12, 30, 30);
QColor light_color(Qt::yellow);
TFunction_IFunction iFunc(myFunction);
Handle(TFunction_GraphNode) graphNode = iFunc.GetGraphNode();
TFunction_ExecutionStatus status = graphNode->GetStatus();
switch (status)
{
case TFunction_ES_WrongDefinition:
case TFunction_ES_Failed:
light_color = Qt::red;
break;
case TFunction_ES_NotExecuted:
light_color = Qt::green;
break;
case TFunction_ES_Executing:
light_color = Qt::yellow;
break;
case TFunction_ES_Succeeded:
light_color = Qt::blue;
break;
}
if (myFunction.IsAttribute(TDataStd_Tick::GetID()))
light_color = Qt::white;
QColor dark_color = light_color.dark(150);
QRadialGradient gradient(-3, -3, 10);
if (option->state & QStyle::State_Sunken) {
gradient.setCenter(3, 3);
gradient.setFocalPoint(3, 3);
gradient.setColorAt(1, light_color.light(120));
gradient.setColorAt(0, dark_color.light(120));
} else {
gradient.setColorAt(0, light_color);
gradient.setColorAt(1, dark_color);
}
painter->setBrush(gradient);
painter->setPen(QPen(Qt::black, 0));
painter->drawEllipse(-15, -15, 30, 30);
QString s;
Handle(TDataStd_Name) n;
if (myFunction.FindAttribute(TDataStd_Name::GetID(), n))
s = TCollection_AsciiString(n->Get()).ToCString();
painter->drawText(-7, 3, s);
}
QVariant Node::itemChange(GraphicsItemChange change, const QVariant &value)
{
switch (change) {
case ItemPositionChange:
foreach (Edge *edge, edgeList)
edge->adjust();
break;
default:
break;
};
return QGraphicsItem::itemChange(change, value);
}
void Node::mousePressEvent(QGraphicsSceneMouseEvent *event)
{
update();
QGraphicsItem::mousePressEvent(event);
}
void Node::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
{
update();
QGraphicsItem::mouseReleaseEvent(event);
}