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50
51#include "roundrectitem.h"
52
53#include <QGuiApplication>
54#include <QPainter>
55#include <QPalette>
56
57//! [0]
58RoundRectItem::RoundRectItem(const QRectF &bounds, const QColor &color,
59 QGraphicsItem *parent)
60 : QGraphicsObject(parent), fillRect(false), bounds(bounds)
61{
62 gradient.setStart(bounds.topLeft());
63 gradient.setFinalStop(bounds.bottomRight());
64 gradient.setColorAt(pos: 0, color);
65 gradient.setColorAt(pos: 1, color: color.darker(f: 200));
66 setCacheMode(mode: ItemCoordinateCache);
67}
68//! [0]
69
70//! [1]
71QPixmap RoundRectItem::pixmap() const
72{
73 return pix;
74}
75void RoundRectItem::setPixmap(const QPixmap &pixmap)
76{
77 pix = pixmap;
78 update();
79}
80//! [1]
81
82//! [2]
83QRectF RoundRectItem::boundingRect() const
84{
85 return bounds.adjusted(xp1: 0, yp1: 0, xp2: 2, yp2: 2);
86}
87//! [2]
88
89//! [3]
90void RoundRectItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
91 QWidget *widget)
92{
93 Q_UNUSED(option);
94 Q_UNUSED(widget);
95 painter->setPen(Qt::NoPen);
96 painter->setBrush(QColor(0, 0, 0, 64));
97 painter->drawRoundedRect(rect: bounds.translated(dx: 2, dy: 2), xRadius: 25, yRadius: 25, mode: Qt::RelativeSize);
98//! [3]
99//! [4]
100 if (fillRect)
101 painter->setBrush(QGuiApplication::palette().brush(cr: QPalette::Window));
102 else
103 painter->setBrush(gradient);
104 painter->setPen(QPen(Qt::black, 1));
105 painter->drawRoundedRect(rect: bounds, xRadius: 25,yRadius: 25, mode: Qt::RelativeSize);
106//! [4]
107//! [5]
108 if (!pix.isNull()) {
109 painter->scale(sx: 1.95, sy: 1.95);
110 painter->drawPixmap(x: -pix.width() / 2, y: -pix.height() / 2, pm: pix);
111 }
112}
113//! [5]
114
115//! [6]
116bool RoundRectItem::fill() const
117{
118 return fillRect;
119}
120void RoundRectItem::setFill(bool fill)
121{
122 fillRect = fill;
123 update();
124}
125//! [6]
126

source code of qtbase/examples/widgets/graphicsview/padnavigator/roundrectitem.cpp