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| |
| #include "draglabel.h" |
| |
| #include <QtWidgets> |
| |
| //! [0] |
| 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); |
| //! [0] |
| |
| //! [1] |
| 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(); |
| //! [1] |
| |
| //! [2] |
| setPixmap(QPixmap::fromImage(image)); |
| m_labelText = text; |
| } |
| //! [2] |
| |
| QString DragLabel::labelText() const |
| { |
| return m_labelText; |
| } |