umbrello
nodewidget.cpp

00001 /***************************************************************************
00002  *                                                                         *
00003  *   This program is free software; you can redistribute it and/or modify  *
00004  *   it under the terms of the GNU General Public License as published by  *
00005  *   the Free Software Foundation; either version 2 of the License, or     *
00006  *   (at your option) any later version.                                   *
00007  *                                                                         *
00008  *   copyright (C) 2003-2007                                               *
00009  *   Umbrello UML Modeller Authors <uml-devel@uml.sf.net>                  *
00010  ***************************************************************************/
00011 
00012 // own header
00013 #include "nodewidget.h"
00014 
00015 // qt/kde includes
00016 #include <qpainter.h>
00017 #include <kdebug.h>
00018 
00019 // app includes
00020 #include "node.h"
00021 #include "uml.h"
00022 #include "umldoc.h"
00023 #include "umlview.h"
00024 
00025 NodeWidget::NodeWidget(UMLView * view, UMLNode *n )
00026   : UMLWidget(view, n) {
00027     UMLWidget::setBaseType(Uml::wt_Node);
00028     setZ(m_origZ = 1);  // above box but below UMLWidget because may embed widgets
00029     setSize(100, 30);
00030     if (n && !UMLApp::app()->getDocument()->loading())
00031         updateComponentSize();
00032 }
00033 
00034 NodeWidget::~NodeWidget() {}
00035 
00036 void NodeWidget::draw(QPainter & p, int offsetX, int offsetY) {
00037     UMLWidget::setPen(p);
00038     if ( UMLWidget::getUseFillColour() ) {
00039         p.setBrush( UMLWidget::getFillColour() );
00040     } else {
00041         p.setBrush( m_pView->viewport()->backgroundColor() );
00042     }
00043     const int w = width();
00044     const int h = height();
00045     const int wDepth = (w/3 > DEPTH ? DEPTH : w/3);
00046     const int hDepth = (h/3 > DEPTH ? DEPTH : h/3);
00047     const int bodyOffsetY = offsetY + hDepth;
00048     const int bodyWidth = w - wDepth;
00049     const int bodyHeight = h - hDepth;
00050     QFont font = UMLWidget::getFont();
00051     font.setBold(true);
00052     const QFontMetrics &fm = getFontMetrics(FT_BOLD);
00053     const int fontHeight  = fm.lineSpacing();
00054     QString name = getName();
00055 
00056     QPointArray pointArray(5);
00057     pointArray.setPoint(0, offsetX, bodyOffsetY);
00058     pointArray.setPoint(1, offsetX + wDepth, offsetY);
00059     pointArray.setPoint(2, offsetX + w - 1, offsetY);
00060     pointArray.setPoint(3, offsetX + w - 1, offsetY + bodyHeight );
00061     pointArray.setPoint(4, offsetX + bodyWidth, offsetY + h - 1);
00062     p.drawPolygon(pointArray);
00063     p.drawRect(offsetX, bodyOffsetY, bodyWidth, bodyHeight);
00064     p.drawLine(offsetX + w - 1, offsetY, offsetX + bodyWidth - 2, bodyOffsetY + 1);
00065 
00066     p.setPen( QPen(Qt::black) );
00067     p.setFont(font);
00068 
00069     int lines = 1;
00070     if (m_pObject) {
00071         QString stereotype = m_pObject->getStereotype();
00072         if (!stereotype.isEmpty()) {
00073             p.drawText(offsetX, bodyOffsetY + (bodyHeight/2) - fontHeight,
00074                        bodyWidth, fontHeight, Qt::AlignCenter, m_pObject->getStereotype(true));
00075             lines = 2;
00076         }
00077     }
00078 
00079     if ( UMLWidget::getIsInstance() ) {
00080         font.setUnderline(true);
00081         p.setFont(font);
00082         name = UMLWidget::getInstanceName() + " : " + name;
00083     }
00084 
00085     if (lines == 1) {
00086         p.drawText(offsetX, bodyOffsetY + (bodyHeight/2) - (fontHeight/2),
00087                    bodyWidth, fontHeight, Qt::AlignCenter, name);
00088     } else {
00089         p.drawText(offsetX, bodyOffsetY + (bodyHeight/2),
00090                    bodyWidth, fontHeight, Qt::AlignCenter, name);
00091     }
00092 
00093     if(m_bSelected) {
00094         drawSelected(&p, offsetX, offsetY);
00095     }
00096 }
00097 
00098 QSize NodeWidget::calculateSize() {
00099     if (m_pObject == NULL) {
00100         kDebug() << "NodeWidget::calculateSize: m_pObject is NULL" << endl;
00101         return UMLWidget::calculateSize();
00102     }
00103 
00104     const QFontMetrics &fm = getFontMetrics(FT_BOLD_ITALIC);
00105     const int fontHeight  = fm.lineSpacing();
00106 
00107     QString name = m_pObject->getName();
00108     if ( UMLWidget::getIsInstance() ) {
00109         name = UMLWidget::getInstanceName() + " : " + name;
00110     }
00111 
00112     int width = fm.width(name);
00113 
00114     int tempWidth = 0;
00115     if (!m_pObject->getStereotype().isEmpty()) {
00116         tempWidth = fm.width(m_pObject->getStereotype(true));
00117     }
00118     if (tempWidth > width)
00119         width = tempWidth;
00120     width += DEPTH;
00121 
00122     int height = (2*fontHeight) + DEPTH;
00123 
00124     return QSize(width, height);
00125 }
00126 
00127 void NodeWidget::saveToXMI(QDomDocument& qDoc, QDomElement& qElement) {
00128     QDomElement conceptElement = qDoc.createElement("nodewidget");
00129     UMLWidget::saveToXMI(qDoc, conceptElement);
00130     qElement.appendChild(conceptElement);
00131 }
00132
umbrello API Documentation

nodewidget.cpp
