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50 lines
1.3 KiB
C++
50 lines
1.3 KiB
C++
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#include "Hilfszeiger.h"
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#include "Basisstapel.h"
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#include "Proportionen.h"
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#include <QPainter>
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using namespace std;
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Hilfszeiger::Hilfszeiger(Basisstapel *parent) : QObject(parent), QGraphicsItem(parent), meinstapel(parent), breite(parent->boundingRect().width() / HILFSZEIGER_BREITE_VERHAELTNIS), hoehe(parent->boundingRect().height() / HILFSZEIGER_HOEHE_VERHAELTNIS), dicke(parent->boundingRect().height() / HILFSZEIGER_DICKE_VERHAELTNIS)
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{
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setZValue(1000);
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}
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Hilfszeiger::~Hilfszeiger()
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{
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}
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void Hilfszeiger::paint(QPainter* painter, const QStyleOptionGraphicsItem*, QWidget*)
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{
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painter->setPen(Qt::darkBlue);
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painter->setBrush(Qt::darkBlue);
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QPen stift(painter->pen());
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stift.setWidth(dicke);
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painter->setPen(stift);
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painter->drawLine(breite / 2, 0 + (dicke / 2), breite / 2, hoehe - (dicke / 2));
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painter->drawLine(breite / 2, 0 + (dicke / 2), dicke / 2, (hoehe / 2));
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painter->drawLine(breite / 2, 0 + (dicke / 2), breite - (dicke / 2), (hoehe / 2));
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}
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QRectF Hilfszeiger::boundingRect() const
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{
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return QRectF(0, 0, breite, hoehe);
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}
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void Hilfszeiger::passe_groesse_an(const QRectF& wert)
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{
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prepareGeometryChange();
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breite = wert.width() / HILFSZEIGER_BREITE_VERHAELTNIS;
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hoehe = wert.height() / HILFSZEIGER_HOEHE_VERHAELTNIS;
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dicke = wert.height() / HILFSZEIGER_DICKE_VERHAELTNIS;
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update();
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}
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