initial commit of code tree

git-svn-id: http://svn.lsim.tuxzone.org/trunk@2 4bec179b-ab65-46ed-a5f8-55b8b5c735d0

src/homoefielditem.cpp

@@ -0,0 +1,124 @@
+/***************************************************************************
+ *   Copyright (C) 2008 by Peter Dahlberg                                  *
+ *   pdahlberg@gmail.com                                                   *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+#include "homoefielditem.h"
+#include "homoefieldwidget.h"
+#include <QPainter>
+#include <cmath>
+#include <QtDebug>
+#include <QRectF>
+
+HomoEFieldItem::HomoEFieldItem(QRectF sizeRect)
+		: FieldItem() {
+	setRectF(sizeRect);
+	dockWidget = new HomoEFieldWidget(0,0,this);
+	setFieldPower(2.8e+3);
+	setFieldLineDistance(10);
+	setFlag(ItemIsMovable);
+	setFlag(ItemIsSelectable);
+	setFlag(ItemIsFocusable);
+	outerPenWidth = 2;
+	//rotateslot(66);
+
+
+
+	
+	
+	
+}
+
+void HomoEFieldItem::setFieldLineDistance(int pixel) {
+	fieldLineDistance = pixel;
+}
+
+QRectF HomoEFieldItem::boundingRect() const {
+	return QRectF(sizeRect.x() - outerPenWidth, sizeRect.y() - outerPenWidth,
+		sizeRect.width() + outerPenWidth, sizeRect.height() + outerPenWidth);
+}
+
+void HomoEFieldItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) {
+	Qt::GlobalColor linecolor = Qt::blue;
+	painter->setPen(linecolor);
+	if (isSelected()) painter->setBrush(Qt::Dense6Pattern); //selection deutlich machen
+	painter->drawRect(sizeRect);
+
+	for (int i = 1; i <= floor(sizeRect.width()/(qreal)fieldLineDistance); ++i) {
+		const int top_bottom_space = 10;
+		const int arrow_height = 8; //pfeilhoehe
+		const int arrow_width_half = 3; //Halbe pfeilbreite
+		
+		if ((i*fieldLineDistance)+arrow_width_half >= sizeRect.width() -2) break; //rechts ueberstehen verhindern
+		if (sizeRect.height() < top_bottom_space + arrow_height) break;//nur zeichnen, wenn sizeRect hoch genug
+
+		//Feldlinien zeichnen
+		painter->drawLine(
+			sizeRect.x() + (i*fieldLineDistance) ,
+			sizeRect.y() +top_bottom_space ,
+			sizeRect.x() + (i*fieldLineDistance) ,
+			sizeRect.y() + sizeRect.height() - top_bottom_space
+		);
+
+
+		//Pfeile Zeichnen
+		QPointF arrows[3] = {
+			QPointF(sizeRect.x()+(i*fieldLineDistance), sizeRect.y()+sizeRect.height()-top_bottom_space),
+			QPointF(sizeRect.x()+(i*fieldLineDistance)-arrow_width_half,sizeRect.y()+sizeRect.height()-top_bottom_space-arrow_height),
+			QPointF(sizeRect.x()+(i*fieldLineDistance)+arrow_width_half,sizeRect.y()+sizeRect.height()-top_bottom_space-arrow_height),
+		};
+		painter->setBrush(linecolor);
+		painter->drawPolygon(arrows,3);
+		painter->setBrush(Qt::NoBrush);
+
+		//qDebug() << pos();
+	}
+}
+
+
+int HomoEFieldItem::type() const {
+	return Type;
+}
+
+
+HomoEFieldItem::~HomoEFieldItem() {
+}
+
+
+
+
+/*!
+    \fn HomoEFieldItem::getDockWidget()
+ */
+QWidget * HomoEFieldItem::getDockWidget() const
+{
+    return dockWidget;
+}
+
+
+
+
+double HomoEFieldItem::getFieldPower() const {
+	return fieldPower;
+}
+
+
+void HomoEFieldItem::setFieldPower (double fieldPower ) {
+	//if (this->fieldPower == fieldPower) return;
+	this->fieldPower = fieldPower;
+	emit fieldPowerChanged(fieldPower);
+}