draglabel.cpp Example File
draganddrop/fridgemagnets/draglabel.cpp
#include "draglabel.h"
#include <QtWidgets>
DragLabel::DragLabel(const QString &text, QWidget *parent)
: QLabel(parent)
{
QFontMetrics metric(font());
QSize size = metric.size(Qt::TextSingleLine, text);
QImage image(size.width() + 12, size.height() + 12, QImage::Format_ARGB32_Premultiplied);
image.fill(qRgba(0, 0, 0, 0));
QFont font;
font.setStyleStrategy(QFont::ForceOutline);
QLinearGradient gradient(0, 0, 0, image.height()-1);
gradient.setColorAt(0.0, Qt::white);
gradient.setColorAt(0.2, QColor(200, 200, 255));
gradient.setColorAt(0.8, QColor(200, 200, 255));
gradient.setColorAt(1.0, QColor(127, 127, 200));
QPainter painter;
painter.begin(&image);
painter.setRenderHint(QPainter::Antialiasing);
painter.setBrush(gradient);
painter.drawRoundedRect(QRectF(0.5, 0.5, image.width()-1, image.height()-1),
25, 25, Qt::RelativeSize);
painter.setFont(font);
painter.setBrush(Qt::black);
painter.drawText(QRect(QPoint(6, 6), size), Qt::AlignCenter, text);
painter.end();
setPixmap(QPixmap::fromImage(image));
m_labelText = text;
}
QString DragLabel::labelText() const
{
return m_labelText;
}