comparison: widgets/colorbutton.cpp
widgets/colorbutton.cpp
- changeset 348
- 98776f54a8d0
- parent 347
- 5c655cc006de
- child 349
- 673b8dffbe14
equal
deleted
inserted
replaced
| 347:5c655cc006de | 348:98776f54a8d0 |
|---|---|
| 1 #include <QColorDialog> | |
| 2 #include <QHBoxLayout> | |
| 3 #include "widgets/colorbutton.h" | |
| 4 | |
| 5 ColorEdit::ColorEdit(const QColor& color, QWidget* parent) : | |
| 6 ColorEdit{parent} | |
| 7 { | |
| 8 this->setColor(color); | |
| 9 } | |
| 10 | |
| 11 ColorEdit::ColorEdit(QWidget* parent) : | |
| 12 QWidget{parent}, | |
| 13 lineEdit{new QLineEdit{this}}, | |
| 14 button{new QPushButton{"…", this}} | |
| 15 { | |
| 16 auto*const layout = new QHBoxLayout{}; | |
| 17 layout->addWidget(this->lineEdit); | |
| 18 layout->addWidget(this->button); | |
| 19 layout->setStretch(0, 1); | |
| 20 layout->setStretch(1, 0); | |
| 21 this->setLayout(layout); | |
| 22 connect(this->button, &QPushButton::clicked, [&](){ | |
| 23 const QColor color = QColorDialog::getColor(this->color(), this->parentWidget()); | |
| 24 if (color.isValid()) { | |
| 25 this->setColor(color); | |
| 26 } | |
| 27 }); | |
| 28 connect(this->lineEdit, &QLineEdit::textChanged, [&]{ | |
| 29 const QColor color = this->color(); | |
| 30 const qreal lightness = color.lightnessF(); | |
| 31 const QColor foreground = lightness < 0.4 ? Qt::white : Qt::black; | |
| 32 this->setStyleSheet( | |
| 33 QStringLiteral("QLineEdit{background-color: %1; color: %2;}") | |
| 34 .arg(color.name()) | |
| 35 .arg(foreground.name())); | |
| 36 Q_EMIT this->colorChanged(this->color()); | |
| 37 }); | |
| 38 this->setColor(Qt::black); | |
| 39 } | |
| 40 | |
| 41 QColor ColorEdit::color() const | |
| 42 { | |
| 43 return QColor{this->lineEdit->text()}; | |
| 44 } | |
| 45 | |
| 46 void ColorEdit::setColor(const QColor& color) | |
| 47 { | |
| 48 if (color.isValid() and this->color() != color) { | |
| 49 this->lineEdit->setText(color.name()); | |
| 50 } | |
| 51 } |
