qhighdpiscaling.cpp File Reference

(4538bbf4a68a80f09cad8749a2b05bfb8ce4290c)

#include "qhighdpiscaling_p.h"
#include "qguiapplication.h"
#include "qscreen.h"
#include "qplatformintegration.h"
#include "qplatformwindow.h"
#include "private/qscreen_p.h"
#include <private/qguiapplication_p.h>
#include <QtCore/qdebug.h>
#include <QtCore/qmetaobject.h>
#include <algorithm>
#include <optional>
#include "moc_qhighdpiscaling_p.cpp"

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Classes
struct	EnumLookup< EnumType >

Typedefs
using	ScaleFactorRoundingPolicyLookup = EnumLookup<Qt::HighDpiScaleFactorRoundingPolicy>
using	DpiAdjustmentPolicyLookup = EnumLookup<QHighDpiScaling::DpiAdjustmentPolicy>

Functions
QT_BEGIN_NAMESPACE	Q_LOGGING_CATEGORY (lcHighDpi, "qt.highdpi")
static std::optional< QString >	qEnvironmentVariableOptionalString (const char *name)
static std::optional< QByteArray >	qEnvironmentVariableOptionalByteArray (const char *name)
static std::optional< int >	qEnvironmentVariableOptionalInt (const char *name)
static std::optional< qreal >	qEnvironmentVariableOptionalReal (const char *name)
template<class EnumType >
static bool	operator== (const EnumLookup< EnumType > &e1, const EnumLookup< EnumType > &e2)
template<class EnumType >
static QByteArray	joinEnumValues (const EnumLookup< EnumType > *i1, const EnumLookup< EnumType > *i2)
static Qt::HighDpiScaleFactorRoundingPolicy	lookupScaleFactorRoundingPolicy (const QByteArray &v)
static QHighDpiScaling::DpiAdjustmentPolicy	lookupDpiAdjustmentPolicy (const QByteArray &v)
QDebug	operator<< (QDebug debug, const QHighDpiScaling::ScreenFactor &factor)

Variables
static const char	enableHighDpiScalingEnvVar [] = "QT_ENABLE_HIGHDPI_SCALING"
static const char	scaleFactorEnvVar [] = "QT_SCALE_FACTOR"
static const char	screenFactorsEnvVar [] = "QT_SCREEN_SCALE_FACTORS"
static const char	scaleFactorRoundingPolicyEnvVar [] = "QT_SCALE_FACTOR_ROUNDING_POLICY"
static const char	dpiAdjustmentPolicyEnvVar [] = "QT_DPI_ADJUSTMENT_POLICY"
static const char	usePhysicalDpiEnvVar [] = "QT_USE_PHYSICAL_DPI"
static const ScaleFactorRoundingPolicyLookup	scaleFactorRoundingPolicyLookup []
static const DpiAdjustmentPolicyLookup	dpiAdjustmentPolicyLookup []
static const char	scaleFactorProperty [] = "_q_scaleFactor"

Typedef Documentation

DpiAdjustmentPolicyLookup

using DpiAdjustmentPolicyLookup = EnumLookup<QHighDpiScaling::DpiAdjustmentPolicy>

Definition at line 314 of file qhighdpiscaling.cpp.

ScaleFactorRoundingPolicyLookup

using ScaleFactorRoundingPolicyLookup = EnumLookup<Qt::HighDpiScaleFactorRoundingPolicy>

Definition at line 294 of file qhighdpiscaling.cpp.

Function Documentation

joinEnumValues()

template<class EnumType >

static QByteArray joinEnumValues ( const EnumLookup< EnumType > * i1, const EnumLookup< EnumType > * i2 )

static

Definition at line 283 of file qhighdpiscaling.cpp.

References QByteArrayLiteral.

Referenced by QHighDpiScaling::initHighDpiScaling().

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lookupDpiAdjustmentPolicy()

static QHighDpiScaling::DpiAdjustmentPolicy lookupDpiAdjustmentPolicy ( const QByteArray & v )

static

Definition at line 324 of file qhighdpiscaling.cpp.

References dpiAdjustmentPolicyLookup, it, and QHighDpiScaling::Unset.

Referenced by QHighDpiScaling::initHighDpiScaling().

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lookupScaleFactorRoundingPolicy()

static Qt::HighDpiScaleFactorRoundingPolicy lookupScaleFactorRoundingPolicy ( const QByteArray & v )

static

Definition at line 306 of file qhighdpiscaling.cpp.

References it, scaleFactorRoundingPolicyLookup, and Qt::Unset.

Referenced by QHighDpiScaling::initHighDpiScaling().

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operator<<()

QDebug operator<<	(	QDebug	debug,
		const QHighDpiScaling::ScreenFactor &	factor )

Definition at line 757 of file qhighdpiscaling.cpp.

operator==()

template<class EnumType >

static bool operator== ( const EnumLookup< EnumType > & e1, const EnumLookup< EnumType > & e2 )

static

Definition at line 277 of file qhighdpiscaling.cpp.

References qstricmp().

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Q_LOGGING_CATEGORY()

QT_BEGIN_NAMESPACE Q_LOGGING_CATEGORY	(	lcHighDpi	,
		"qt.highdpi"	)

qEnvironmentVariableOptionalByteArray()

static std::optional< QByteArray > qEnvironmentVariableOptionalByteArray ( const char * name )

static

Definition at line 39 of file qhighdpiscaling.cpp.

References qEnvironmentVariableIsSet(), and qgetenv().

Referenced by QHighDpiScaling::initHighDpiScaling().

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qEnvironmentVariableOptionalInt()

static std::optional< int > qEnvironmentVariableOptionalInt ( const char * name )

static

Definition at line 47 of file qhighdpiscaling.cpp.

References ok, opt, and qEnvironmentVariableIntValue().

Referenced by QHighDpiScaling::initHighDpiScaling().

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qEnvironmentVariableOptionalReal()

static std::optional< qreal > qEnvironmentVariableOptionalReal ( const char * name )

static

Definition at line 55 of file qhighdpiscaling.cpp.

References ok, qEnvironmentVariable(), qEnvironmentVariableIsSet(), and QString::toDouble().

Referenced by QHighDpiScaling::initHighDpiScaling().

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qEnvironmentVariableOptionalString()

static std::optional< QString > qEnvironmentVariableOptionalString ( const char * name )

static

Definition at line 31 of file qhighdpiscaling.cpp.

References qEnvironmentVariable(), and qEnvironmentVariableIsSet().

Referenced by QHighDpiScaling::initHighDpiScaling().

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Variable Documentation

dpiAdjustmentPolicyEnvVar

const char dpiAdjustmentPolicyEnvVar[] = "QT_DPI_ADJUSTMENT_POLICY"

static

Definition at line 28 of file qhighdpiscaling.cpp.

Referenced by QHighDpiScaling::initHighDpiScaling().

dpiAdjustmentPolicyLookup

const DpiAdjustmentPolicyLookup dpiAdjustmentPolicyLookup[]

static

Initial value:

=
{
    {"AdjustDpi", QHighDpiScaling::DpiAdjustmentPolicy::Enabled},
    {"DontAdjustDpi", QHighDpiScaling::DpiAdjustmentPolicy::Disabled},
    {"AdjustUpOnly", QHighDpiScaling::DpiAdjustmentPolicy::UpOnly}
}

Definition at line 316 of file qhighdpiscaling.cpp.

Referenced by QHighDpiScaling::initHighDpiScaling(), and lookupDpiAdjustmentPolicy().

enableHighDpiScalingEnvVar

const char enableHighDpiScalingEnvVar[] = "QT_ENABLE_HIGHDPI_SCALING"

static

Definition at line 24 of file qhighdpiscaling.cpp.

Referenced by QHighDpiScaling::initHighDpiScaling().

scaleFactorEnvVar

const char scaleFactorEnvVar[] = "QT_SCALE_FACTOR"

static

Definition at line 25 of file qhighdpiscaling.cpp.

Referenced by QHighDpiScaling::initHighDpiScaling().

scaleFactorProperty

const char scaleFactorProperty[] = "_q_scaleFactor"

static

Definition at line 557 of file qhighdpiscaling.cpp.

Referenced by QHighDpiScaling::setScreenFactor().

scaleFactorRoundingPolicyEnvVar

const char scaleFactorRoundingPolicyEnvVar[] = "QT_SCALE_FACTOR_ROUNDING_POLICY"

static

Definition at line 27 of file qhighdpiscaling.cpp.

Referenced by QHighDpiScaling::initHighDpiScaling().

scaleFactorRoundingPolicyLookup

const ScaleFactorRoundingPolicyLookup scaleFactorRoundingPolicyLookup[]

static

Initial value:

=
{
    {"Round", Qt::HighDpiScaleFactorRoundingPolicy::Round},
    {"Ceil", Qt::HighDpiScaleFactorRoundingPolicy::Ceil},
    {"Floor", Qt::HighDpiScaleFactorRoundingPolicy::Floor},
    {"RoundPreferFloor", Qt::HighDpiScaleFactorRoundingPolicy::RoundPreferFloor},
    {"PassThrough", Qt::HighDpiScaleFactorRoundingPolicy::PassThrough}
}

Definition at line 296 of file qhighdpiscaling.cpp.

Referenced by QHighDpiScaling::initHighDpiScaling(), and lookupScaleFactorRoundingPolicy().

screenFactorsEnvVar

const char screenFactorsEnvVar[] = "QT_SCREEN_SCALE_FACTORS"

static

Definition at line 26 of file qhighdpiscaling.cpp.

Referenced by QHighDpiScaling::initHighDpiScaling().

usePhysicalDpiEnvVar

const char usePhysicalDpiEnvVar[] = "QT_USE_PHYSICAL_DPI"

static

Definition at line 29 of file qhighdpiscaling.cpp.

Referenced by QHighDpiScaling::initHighDpiScaling().