1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#include "roundrectitem.h"
#include <QGuiApplication>
#include <QPainter>
#include <QPalette>
//! [0]
RoundRectItem::RoundRectItem(const QRectF &bounds, const QColor &color,
QGraphicsItem *parent)
: QGraphicsObject(parent), fillRect(false), bounds(bounds)
{
gradient.setStart(bounds.topLeft());
gradient.setFinalStop(bounds.bottomRight());
gradient.setColorAt(0, color);
gradient.setColorAt(1, color.darker(200));
setCacheMode(ItemCoordinateCache);
}
//! [0]
//! [1]
QPixmap RoundRectItem::pixmap() const
{
return pix;
}
void RoundRectItem::setPixmap(const QPixmap &pixmap)
{
pix = pixmap;
update();
}
//! [1]
//! [2]
QRectF RoundRectItem::boundingRect() const
{
return bounds.adjusted(0, 0, 2, 2);
}
//! [2]
//! [3]
void RoundRectItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
QWidget *widget)
{
Q_UNUSED(option);
Q_UNUSED(widget);
painter->setPen(Qt::NoPen);
painter->setBrush(QColor(0, 0, 0, 64));
painter->drawRoundedRect(bounds.translated(2, 2), 25, 25, Qt::RelativeSize);
//! [3]
//! [4]
if (fillRect)
painter->setBrush(QGuiApplication::palette().brush(QPalette::Window));
else
painter->setBrush(gradient);
painter->setPen(QPen(Qt::black, 1));
painter->drawRoundedRect(bounds, 25,25, Qt::RelativeSize);
//! [4]
//! [5]
if (!pix.isNull()) {
painter->scale(1.95, 1.95);
painter->drawPixmap(-pix.width() / 2, -pix.height() / 2, pix);
}
}
//! [5]
//! [6]
bool RoundRectItem::fill() const
{
return fillRect;
}
void RoundRectItem::setFill(bool fill)
{
fillRect = fill;
update();
}
//! [6]
|
