Qt Utilities 6.14.3
Common Qt related C++ classes and routines used by my applications such as dialogs, widgets and models
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QtUtilities Namespace Reference

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Namespaces

namespace  ApplicationInstances
 Convenience functions to check whether a QCoreApplication/QGuiApplication/QApplication singleton has been instantiated yet.
 
namespace  QtUtilitiesResources
 Functions for using the resources provided by this library.
 
namespace  TranslationFiles
 Convenience functions to load translations for Qt and the application.
 
namespace  Ui
 

Classes

class  AboutDialog
 The AboutDialog class provides a simple about dialog. More...
 
class  AdoptLocker
 Like QMutexLocker, but assumes that the mutex has already been locked. More...
 
class  BrushEditor
 The BrushEditor class is used by PaletteEditor. More...
 
class  ButtonOverlay
 The ButtonOverlay class is used to display buttons on top of other widgets. More...
 
class  ChecklistItem
 
class  ChecklistModel
 
class  ClearComboBox
 A QComboBox with an embedded button for clearing its contents. More...
 
class  ClearLineEdit
 A QLineEdit with an embedded button for clearing its contents. More...
 
class  ClearPlainTextEdit
 A QPlainTextEdit with an embedded button for clearing its contents. More...
 
class  ClearSpinBox
 A QSpinBox with an embedded button for clearing its contents and the ability to hide the minimum value. More...
 
class  ColorButton
 The ColorButton class is used by PaletteEditor. More...
 
class  ColorDelegate
 The ColorDelegate class is used by PaletteEditor. More...
 
class  DBusNotification
 The DBusNotification class emits D-Bus notifications. More...
 
class  EnterPasswordDialog
 The EnterPasswordDialog class provides a simple dialog to ask the user for a password. More...
 
class  IconButton
 A simple QAbstractButton implementation displaying a QPixmap. More...
 
struct  NotificationImage
 The NotificationImage struct is a raw data image format. More...
 
class  OptionCategory
 The OptionCategory class wraps associated option pages. More...
 
class  OptionCategoryFilterModel
 The OptionCategoryFilterModel class is used by SettingsDialog to filter option categories. More...
 
class  OptionCategoryModel
 The OptionCategoryModel class is used by SettingsDialog to store and display option categories. More...
 
class  OptionPage
 The OptionPage class is the base class for SettingsDialog pages. More...
 
class  OptionPageWidget
 
class  PaletteEditor
 The PaletteEditor class provides a dialog to customize a QPalette. More...
 
class  PaletteModel
 The PaletteModel class is used by PaletteEditor. More...
 
class  PathSelection
 A QLineEdit with a QPushButton next to it which allows to select file/directory via QFileDialog. More...
 
struct  QtSettingsData
 
class  RecentMenuManager
 The RecentMenuManager class manages the entries for a "recently opened files" menu. More...
 
class  RoleEditor
 The RoleEditor class is used by PaletteEditor. More...
 
class  SettingsDialog
 The SettingsDialog class provides a framework for creating settings dialogs with different categories and subcategories. More...
 
struct  SwappedImage
 The SwappedImage struct represents RGB-interved version of the image specified on construction. More...
 
class  TryLocker
 Like QMutexLocker, but it just tries to lock the mutex. More...
 
class  UiFileBasedOptionPage
 

Typedefs

using Utf16CharType
 
using StringView
 

Enumerations

enum class  DocumentStatus { NoDocument , Saved , Unsaved }
 The DocumentStatus enum specifies the status of the document in a window. More...
 
enum class  NotificationIcon { NoIcon , Information , Warning , Critical }
 
enum class  NotificationCloseReason {
  Undefined , Expired , Dismissed , Manually ,
  ActionInvoked
}
 
enum  { BrushRole = 33 }
 

Functions

QT_UTILITIES_EXPORT QString generateWindowTitle (DocumentStatus documentStatus, const QString &documentPath)
 Generates the window title string for the specified documentStatus and documentPath.
 
QT_UTILITIES_EXPORT bool openLocalFileOrDir (const QString &path)
 Shows the specified file or directory using the default file browser.
 
QT_UTILITIES_EXPORT bool isPaletteDark (const QPalette &palette)
 Returns whether palette is dark.
 
QT_UTILITIES_EXPORT std::optional< bool > isDarkModeEnabled ()
 Returns whether dark mode is enabled.
 
QT_UTILITIES_EXPORT QMetaObject::Connection onDarkModeChanged (std::function< void(bool)> &&darkModeChangedCallback, QObject *context, bool invokeImmediately)
 Invokes the specified callback when the color scheme changed.
 
QByteArray toNativeFileName (const QString &fileName)
 
QString fromNativeFileName (const char *nativeFileName, int size=-1)
 
QString fromNativeFileName (const std::string &nativeFileName)
 
QString qstringFromStdStringView (std::string_view stringView)
 
StringView makeStringView (const QString &str)
 Makes either a QStringView or a QStringRef depending on the Qt version.
 
template<typename PosType1 , typename PosType2 = PosType1, CppUtilities::Traits::EnableIf< std::is_integral< PosType1 >, std::is_signed< PosType1 >, std::is_integral< PosType2 >, std::is_signed< PosType2 > > * = nullptr>
StringView midRef (const QString &str, PosType1 pos, PosType2 n=-1)
 Makes either a QStringView or a QStringRef depending on the Qt version, applying "mid()" parameters.
 
template<class... SplitArgs>
auto splitRef (const QString &str, SplitArgs &&...args)
 Splits str into QStringViews, QStringRefs or QStrings depending on the Qt version.
 
QT_UTILITIES_EXPORT void setupCommonQtApplicationAttributes ()
 Sets Qt application attributes which are commonly used within my Qt applications.
 
QT_UTILITIES_EXPORT std::unique_ptr< QSettings > getSettings (const QString &organization, const QString &application)
 Returns the settings object for the specified organization and application.
 
QT_UTILITIES_EXPORT QString errorMessageForSettings (const QSettings &settings)
 Returns an error message for the specified settings or an empty string if there's no error.
 
QDBusArgument & operator<< (QDBusArgument &argument, const NotificationImage &img)
 
const QDBusArgument & operator>> (const QDBusArgument &argument, NotificationImage &img)
 
 QtAppearanceOptionPage (QtSettingsData &settings, QWidget *parentWidget=nullptr)
 
 QtLanguageOptionPage (QtSettingsData &settings, QWidget *parentWidget=nullptr)
 
 QtEnvOptionPage (QtSettingsData &settings, QWidget *parentWidget=nullptr)
 

Detailed Description

!

The QtUtilities namespace contains all utilities provided by the qtutilities library.

Typedef Documentation

◆ StringView

Initial value:
QStringView

Definition at line 32 of file compat.h.

◆ Utf16CharType

Initial value:
char16_t

Definition at line 24 of file compat.h.

Enumeration Type Documentation

◆ anonymous enum

anonymous enum
Enumerator
BrushRole 

Definition at line 21 of file paletteeditor.cpp.

◆ DocumentStatus

enum class QtUtilities::DocumentStatus
strong

The DocumentStatus enum specifies the status of the document in a window.

Enumerator
NoDocument 

There is no document opened. The document path is ignored in this case.

Saved 

There is a document opened. All modifications have been saved yet.

Unsaved 

There is a document opened and there are unsaved modifications.

Definition at line 21 of file dialogutils.h.

◆ NotificationCloseReason

Enumerator
Undefined 
Expired 
Dismissed 
Manually 
ActionInvoked 

Definition at line 20 of file dbusnotification.h.

◆ NotificationIcon

enum class QtUtilities::NotificationIcon
strong
Enumerator
NoIcon 
Information 
Warning 
Critical 

Definition at line 18 of file dbusnotification.h.

Function Documentation

◆ errorMessageForSettings()

QString QtUtilities::errorMessageForSettings ( const QSettings & settings)

Returns an error message for the specified settings or an empty string if there's no error.

Definition at line 396 of file resources.cpp.

◆ fromNativeFileName() [1/2]

QString QtUtilities::fromNativeFileName ( const char * nativeFileName,
int size = -1 )
inline

Definition at line 22 of file conversion.h.

◆ fromNativeFileName() [2/2]

QString QtUtilities::fromNativeFileName ( const std::string & nativeFileName)
inline

Definition at line 31 of file conversion.h.

◆ generateWindowTitle()

QString QtUtilities::generateWindowTitle ( DocumentStatus documentStatus,
const QString & documentPath )

Generates the window title string for the specified documentStatus and documentPath.

Definition at line 31 of file dialogutils.cpp.

◆ getSettings()

std::unique_ptr< QSettings > QtUtilities::getSettings ( const QString & organization,
const QString & application )

Returns the settings object for the specified organization and application.

Remarks
  • This function always uses INI as that's what I'd like to use in all of my applications consistently, regardless of the platform.
  • The parameter application might be empty. In fact, most of my applications use just getSettings(QStringLiteral(PROJECT_NAME)).
  • This function first checks whether a file called $organization/$application.ini exists in the current working directory (or just $organization.ini if application is empty) and uses that if it exists. That allows having a portable installation.
  • Some of my apps where using values from QCoreApplication for organization and application in the beginning. This function moves those old config files to their new location if needed. This extra handling will likely removed at some point. Note that I moved away from using values from QCoreApplication to avoid having spaces and additional config suffixes in the file name.

Definition at line 372 of file resources.cpp.

◆ isDarkModeEnabled()

std::optional< bool > QtUtilities::isDarkModeEnabled ( )

Returns whether dark mode is enabled.

Remarks
Whether dark mode is enabled can only be determined on Qt 6.5 or newer and only on certain platforms. If it cannot be determined, std::nullopt is returned.

Definition at line 59 of file desktoputils.cpp.

◆ isPaletteDark()

bool QtUtilities::isPaletteDark ( const QPalette & palette = QPalette())

Returns whether palette is dark.

Definition at line 49 of file desktoputils.cpp.

◆ makeStringView()

StringView QtUtilities::makeStringView ( const QString & str)
inline

Makes either a QStringView or a QStringRef depending on the Qt version.

Definition at line 43 of file compat.h.

◆ midRef()

template<typename PosType1 , typename PosType2 = PosType1, CppUtilities::Traits::EnableIf< std::is_integral< PosType1 >, std::is_signed< PosType1 >, std::is_integral< PosType2 >, std::is_signed< PosType2 > > * = nullptr>
StringView QtUtilities::midRef ( const QString & str,
PosType1 pos,
PosType2 n = -1 )
inline

Makes either a QStringView or a QStringRef depending on the Qt version, applying "mid()" parameters.

Definition at line 58 of file compat.h.

◆ onDarkModeChanged()

QMetaObject::Connection QtUtilities::onDarkModeChanged ( std::function< void(bool)> && darkModeChangedCallback,
QObject * context,
bool invokeImmediately )

Invokes the specified callback when the color scheme changed.

The first argument of the callback will be whether the color scheme is dark now (Qt::ColorScheme::Dark). The callback is invoked immediately by this function unless invokeImmediately is set to false.

Remarks
Whether dark mode is enabled can only be determined on Qt 6.5 or newer and only on certain platforms. If it cannot be determined the darkModeChangedCallback is never invoked.

Definition at line 81 of file desktoputils.cpp.

◆ openLocalFileOrDir()

bool QtUtilities::openLocalFileOrDir ( const QString & path)

Shows the specified file or directory using the default file browser.

Remarks
  • The specified path must not be specified as URL. (The conversion to a URL suitable for QDesktopServices::openUrl() is the whole purpose of this function).
  • The Qt documentation suggests to use QDesktopServices::openUrl(QUrl("file:///C:/Documents and Settings/All Users/Desktop", QUrl::TolerantMode)); under Windows. However, that does not work if the path contains a '#'. It is also better to use QUrl::DecodedMode to prevent QUrl from interpreting any of the paths characters in a special way.

Definition at line 25 of file desktoputils.cpp.

◆ operator<<()

QDBusArgument & QtUtilities::operator<< ( QDBusArgument & argument,
const NotificationImage & img )

Definition at line 87 of file dbusnotification.cpp.

◆ operator>>()

const QDBusArgument & QtUtilities::operator>> ( const QDBusArgument & argument,
NotificationImage & img )

Definition at line 95 of file dbusnotification.cpp.

◆ qstringFromStdStringView()

QString QtUtilities::qstringFromStdStringView ( std::string_view stringView)
inline

Definition at line 40 of file conversion.h.

◆ QtAppearanceOptionPage()

QtUtilities::QtAppearanceOptionPage::QtAppearanceOptionPage ( QtSettingsData & settings,
QWidget * parentWidget = nullptr )
explicit

Definition at line 448 of file qtsettings.cpp.

◆ QtEnvOptionPage()

QtUtilities::QtEnvOptionPage::QtEnvOptionPage ( QtSettingsData & settings,
QWidget * parentWidget = nullptr )
explicit

Definition at line 594 of file qtsettings.cpp.

◆ QtLanguageOptionPage()

QtUtilities::QtLanguageOptionPage::QtLanguageOptionPage ( QtSettingsData & settings,
QWidget * parentWidget = nullptr )
explicit

Definition at line 540 of file qtsettings.cpp.

◆ setupCommonQtApplicationAttributes()

void QtUtilities::setupCommonQtApplicationAttributes ( )

Sets Qt application attributes which are commonly used within my Qt applications.

Remarks
  • So far this enables High-DPI support.
  • The exact attributes are unspecified and might change to whatever makes sense in the future.

Definition at line 332 of file resources.cpp.

◆ splitRef()

template<class... SplitArgs>
auto QtUtilities::splitRef ( const QString & str,
SplitArgs &&... args )
inline

Splits str into QStringViews, QStringRefs or QStrings depending on the Qt version.

Definition at line 70 of file compat.h.

◆ toNativeFileName()

QByteArray QtUtilities::toNativeFileName ( const QString & fileName)
inline

Definition at line 13 of file conversion.h.