diff options
| -rw-r--r-- | tests/manual/highdpi/main.cpp | 80 |
1 files changed, 51 insertions, 29 deletions
diff --git a/tests/manual/highdpi/main.cpp b/tests/manual/highdpi/main.cpp index 9b7f278765..4dfa0f04a7 100644 --- a/tests/manual/highdpi/main.cpp +++ b/tests/manual/highdpi/main.cpp @@ -95,6 +95,46 @@ private: QCommandLineOption m_option; }; +class LabelSlider : public QWidget +{ +Q_OBJECT +public: + LabelSlider(const QString &text) { + QHBoxLayout *row = new QHBoxLayout(this); + QLabel *label = new QLabel(text); + QSlider *slider = new QSlider(); + slider->setOrientation(Qt::Horizontal); + slider->setMinimum(1); + slider->setMaximum(40); + slider->setValue(10); + slider->setTracking(false); + slider->setTickInterval(5); + slider->setTickPosition(QSlider::TicksBelow); + QLabel *scaleFactorLabel = new QLabel("1.0"); + + // set up layouts + row->addWidget(label); + row->addWidget(slider); + row->addWidget(scaleFactorLabel); + + // handle slider position change + connect(slider, &QSlider::sliderMoved, [scaleFactorLabel](int scaleFactor){ + // slider value is scale factor times ten; + qreal scalefactorF = qreal(scaleFactor) / 10.0; + + // update label, add ".0" if needed. + QString number = QString::number(scalefactorF); + if (!number.contains(".")) + number.append(".0"); + scaleFactorLabel->setText(number); + }); + connect(slider, &QSlider::valueChanged, this, &LabelSlider::valueChanged); + setSizePolicy(QSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed)); + } +signals: + void valueChanged(int scaleFactor); +}; + class DemoController : public QWidget { Q_OBJECT @@ -117,44 +157,26 @@ DemoController::DemoController(DemoContainerList *demos, QCommandLineParser *par QVBoxLayout *layout = new QVBoxLayout; setLayout(layout); + LabelSlider *globalScaleSlider = new LabelSlider("Global scale factor"); + connect(globalScaleSlider, &LabelSlider::valueChanged, [](int scaleFactor){ + // slider value is scale factor times ten; + qreal scalefactorF = qreal(scaleFactor) / 10.0; + QHighDpiScaling::setGlobalFactor(scalefactorF); + }); + layout->addWidget(globalScaleSlider); + layout->addStretch(); // set up one scale control line per screen QList<QScreen *> screens = QGuiApplication::screens(); foreach (QScreen *screen, screens) { // create scale control line - QHBoxLayout *row = new QHBoxLayout; QSize screenSize = screen->geometry().size(); QString screenId = screen->name() + " " + QString::number(screenSize.width()) + " " + QString::number(screenSize.height()); - QLabel *label = new QLabel(screenId); - QSlider *slider = new QSlider(); - slider->setOrientation(Qt::Horizontal); - slider->setMinimum(1); - slider->setMaximum(40); - slider->setValue(10); - slider->setTracking(false); - slider->setTickInterval(5); - slider->setTickPosition(QSlider::TicksBelow); - QLabel *scaleFactorLabel = new QLabel("1.0"); - - // set up layouts - row->addWidget(label); - row->addWidget(slider); - row->addWidget(scaleFactorLabel); - layout->addLayout(row); - - // handle slider position change - connect(slider, &QSlider::sliderMoved, [scaleFactorLabel, screen](int scaleFactor){ - // slider value is scale factor times ten; - qreal scalefactorF = qreal(scaleFactor) / 10.0; + LabelSlider *slider = new LabelSlider(screenId); + layout->addWidget(slider); - // update label, add ".0" if needed. - QString number = QString::number(scalefactorF); - if (!number.contains(".")) - number.append(".0"); - scaleFactorLabel->setText(number); - }); // handle slider value change - connect(slider, &QSlider::valueChanged, [scaleFactorLabel, screen](int scaleFactor){ + connect(slider, &LabelSlider::valueChanged, [screen](int scaleFactor){ // slider value is scale factor times ten; qreal scalefactorF = qreal(scaleFactor) / 10.0; |