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50
51#include "draglabel.h"
52
53#include <QtWidgets>
54
55//! [0]
56DragLabel::DragLabel(const QString &text, QWidget *parent)
57 : QLabel(parent)
58{
59 QFontMetrics metric(font());
60 QSize size = metric.size(Qt::TextSingleLine, text);
61
62 QImage image(size.width() + 12, size.height() + 12, QImage::Format_ARGB32_Premultiplied);
63 image.fill(qRgba(0, 0, 0, 0));
64
65 QFont font;
66 font.setStyleStrategy(QFont::ForceOutline);
67//! [0]
68
69//! [1]
70 QLinearGradient gradient(0, 0, 0, image.height()-1);
71 gradient.setColorAt(0.0, Qt::white);
72 gradient.setColorAt(0.2, QColor(200, 200, 255));
73 gradient.setColorAt(0.8, QColor(200, 200, 255));
74 gradient.setColorAt(1.0, QColor(127, 127, 200));
75
76 QPainter painter;
77 painter.begin(&image);
78 painter.setRenderHint(QPainter::Antialiasing);
79 painter.setBrush(gradient);
80 painter.drawRoundedRect(QRectF(0.5, 0.5, image.width()-1, image.height()-1),
81 25, 25, Qt::RelativeSize);
82
83 painter.setFont(font);
84 painter.setBrush(Qt::black);
85 painter.drawText(QRect(QPoint(6, 6), size), Qt::AlignCenter, text);
86 painter.end();
87//! [1]
88
89//! [2]
90 setPixmap(QPixmap::fromImage(image));
91 m_labelText = text;
92}
93//! [2]
94
95QString DragLabel::labelText() const
96{
97 return m_labelText;
98}
99