qt5base-lts/examples/graphicsview/chip/chip.h
Marc Mutz a03a71e332 examples: use QVector<QPointF> instead of QList<QPointF>
QPointF is in the category of types for which QList
is needlessly inefficient (elements are copy-constructed
onto the heap and held through pointers). Use a vector
instead. This is consistent with the QPainter API.

Change-Id: Id0e910c067a60d12fbc175e7ee7da824834be374
Reviewed-by: hjk <qthjk@ovi.com>
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
2012-03-08 05:31:40 +01:00

69 lines
2.3 KiB
C++

/****************************************************************************
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** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
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** This file is part of the demonstration applications of the Qt Toolkit.
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#ifndef CHIP_H
#define CHIP_H
#include <QtGui/QColor>
#include <QtWidgets/QGraphicsItem>
class Chip : public QGraphicsItem
{
public:
Chip(const QColor &color, int x, int y);
QRectF boundingRect() const;
QPainterPath shape() const;
void paint(QPainter *painter, const QStyleOptionGraphicsItem *item, QWidget *widget);
protected:
void mousePressEvent(QGraphicsSceneMouseEvent *event);
void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
private:
int x, y;
QColor color;
QVector<QPointF> stuff;
};
#endif