本文整理汇总了C++中QScreen::physicalDotsPerInchX方法的典型用法代码示例。如果您正苦于以下问题：C++ QScreen::physicalDotsPerInchX方法的具体用法？C++ QScreen::physicalDotsPerInchX怎么用？C++ QScreen::physicalDotsPerInchX使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类QScreen的用法示例。
在下文中一共展示了QScreen::physicalDotsPerInchX方法的6个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: QQuickWidget
ResizeAwareQuickWidget::ResizeAwareQuickWidget(QWidget *parent)
: QQuickWidget(parent),
theButtonHeight(theButtonHeightPix),
theButtonIconSize(theButtonIconPix),
theWorldWidthInMeters(1.0),
theWorldHeightInMeters(1.0),
thePixPerMeter(100),
theGameViewPtr(nullptr)
{
// Enable objects in the QML world to see our properties.
rootContext()->setContextProperty(QStringLiteral("ResizeInfo"), this);
// TODO/FIXME: Does this belong here???
qmlRegisterType<ViewItem>("TBEView", 1, 0, "ViewItem");
qmlRegisterType<ViewResizeRotateMoveUndo>("TBEView", 1, 0, "ViewResizeRotateMoveUndo");
qmlRegisterType<ViewWorldItem>("TBEView", 1, 0, "ViewWorldItem");
qmlRegisterType<GameQControls>("TBEView", 1, 0, "GameQControls");
// Pre-calculate the handle sizes, they normally won't change during play...
QScreen* myQScreenPtr = QApplication::primaryScreen();
assert (myQScreenPtr != nullptr);
theHandleHeight = theHandleSizeMM / 25.4 * myQScreenPtr->physicalDotsPerInchX();
if (theHandleHeight < theHandleMinPix)
theHandleHeight = theHandleMinPix;
theHandleWidth = theHandleSizeMM / 25.4 * myQScreenPtr->physicalDotsPerInchY();
if (theHandleWidth < theHandleMinPix)
theHandleWidth = theHandleMinPix;
}示例2: lcdDpiX
qreal AsemanDevices::lcdDpiX() const
{
if( QGuiApplication::screens().isEmpty() )
return 0;
QScreen *scr = QGuiApplication::screens().first();
return scr->physicalDotsPerInchX();
}示例3: lcdPhysicalWidth
qreal AsemanDevices::lcdPhysicalWidth() const
{
if( QGuiApplication::screens().isEmpty() )
return 0;
QScreen *scr = QGuiApplication::screens().first();
return (qreal)scr->size().width()/scr->physicalDotsPerInchX();
}示例4: metric
int QWidget::metric(PaintDeviceMetric m) const
{
Q_D(const QWidget);
QScreen *screen = 0;
if (QWidget *topLevel = window())
if (QWindow *topLevelWindow = topLevel->windowHandle()) {
QPlatformScreen *platformScreen = QPlatformScreen::platformScreenForWindow(topLevelWindow);
if (platformScreen)
screen = platformScreen->screen();
}
if (!screen && QGuiApplication::primaryScreen())
screen = QGuiApplication::primaryScreen();
if (!screen) {
if (m == PdmDpiX || m == PdmDpiY)
return 72;
return QPaintDevice::metric(m);
}
int val;
if (m == PdmWidth) {
val = data->crect.width();
} else if (m == PdmWidthMM) {
val = data->crect.width() * screen->physicalSize().width() / screen->geometry().width();
} else if (m == PdmHeight) {
val = data->crect.height();
} else if (m == PdmHeightMM) {
val = data->crect.height() * screen->physicalSize().height() / screen->geometry().height();
} else if (m == PdmDepth) {
return screen->depth();
} else if (m == PdmDpiX) {
if (d->extra && d->extra->customDpiX)
return d->extra->customDpiX;
else if (d->parent)
return static_cast<QWidget *>(d->parent)->metric(m);
return qRound(screen->logicalDotsPerInchX());
} else if (m == PdmDpiY) {
if (d->extra && d->extra->customDpiY)
return d->extra->customDpiY;
else if (d->parent)
return static_cast<QWidget *>(d->parent)->metric(m);
return qRound(screen->logicalDotsPerInchY());
} else if (m == PdmPhysicalDpiX) {
return qRound(screen->physicalDotsPerInchX());
} else if (m == PdmPhysicalDpiY) {
return qRound(screen->physicalDotsPerInchY());
} else if (m == PdmDevicePixelRatio) {
return screen->devicePixelRatio();
} else {
val = QPaintDevice::metric(m);// XXX
}
return val;
}示例5: metric
/*!
\internal
*/
int QPaintDeviceWindow::metric(PaintDeviceMetric metric) const
{
QScreen *screen = this->screen();
if (!screen && QGuiApplication::primaryScreen())
screen = QGuiApplication::primaryScreen();
switch (metric) {
case PdmWidth:
return width();
case PdmWidthMM:
if (screen)
return width() * screen->physicalSize().width() / screen->geometry().width();
break;
case PdmHeight:
return height();
case PdmHeightMM:
if (screen)
return height() * screen->physicalSize().height() / screen->geometry().height();
break;
case PdmDpiX:
if (screen)
return qRound(screen->logicalDotsPerInchX());
break;
case PdmDpiY:
if (screen)
return qRound(screen->logicalDotsPerInchY());
break;
case PdmPhysicalDpiX:
if (screen)
return qRound(screen->physicalDotsPerInchX());
break;
case PdmPhysicalDpiY:
if (screen)
return qRound(screen->physicalDotsPerInchY());
break;
case PdmDevicePixelRatio:
if (screen)
return screen->devicePixelRatio();
break;
default:
break;
}
return QPaintDevice::metric(metric);
}示例6: pixelsPerMillimeterX
int BtStyle::pixelsPerMillimeterX() {
QScreen* screen = QGuiApplication::screens().at(0);
return screen->physicalDotsPerInchX() / millimeterPerInch;
}