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50
51#include "diagramitem.h"
52
53#include <QBrush>
54#include <QRandomGenerator>
55
56DiagramItem::DiagramItem(DiagramType diagramType, QGraphicsItem *item)
57 : QGraphicsPolygonItem(item)
58{
59 if (diagramType == Box) {
60 boxPolygon << QPointF(0, 0) << QPointF(0, 30) << QPointF(30, 30)
61 << QPointF(30, 0) << QPointF(0, 0);
62 setPolygon(boxPolygon);
63 } else {
64 trianglePolygon << QPointF(15, 0) << QPointF(30, 30) << QPointF(0, 30)
65 << QPointF(15, 0);
66 setPolygon(trianglePolygon);
67 }
68
69 QColor color(QRandomGenerator::global()->bounded(highest: 256),
70 QRandomGenerator::global()->bounded(highest: 256),
71 QRandomGenerator::global()->bounded(highest: 256));
72 QBrush brush(color);
73 setBrush(brush);
74 setFlag(flag: QGraphicsItem::ItemIsSelectable);
75 setFlag(flag: QGraphicsItem::ItemIsMovable);
76}
77

source code of qtbase/examples/widgets/tools/undoframework/diagramitem.cpp