QgsGui Class Reference

QgsGui is a singleton class containing various registry and other global members related to GUI classes. More...

#include <qgsgui.h>

Inheritance diagram for QgsGui:

Public Types
enum	HigFlag { HigMenuTextIsTitleCase = 1 << 0 , HigDialogTitleIsTitleCase = 1 << 1 }
	HIG flags, which indicate the Human Interface Guidelines for the current platform. More...
enum	ProjectCrsBehavior { UseCrsOfFirstLayerAdded = 1 , UsePresetCrs = 2 }
	Defines the behavior to use when setting the CRS for a newly created project. More...

Signals
void	optionsChanged ()
	This signal is emitted whenever the application options have been changed. More...

Public Member Functions
	QgsGui (const QgsGui &other)=delete
	QgsGui cannot be copied. More...
	~QgsGui ()
QgsGui &	operator= (const QgsGui &other)=delete
	QgsGui cannot be copied. More...

Static Public Member Functions
static QgsAnnotationItemGuiRegistry *	annotationItemGuiRegistry ()
	Returns the global annotation item GUI registry, used for registering the GUI behavior of annotation items. More...
static QgsCodeEditorColorSchemeRegistry *	codeEditorColorSchemeRegistry ()
	Returns the global code editor color scheme registry, used for registering the color schemes for QgsCodeEditor widgets. More...
static QgsDataItemGuiProviderRegistry *	dataItemGuiProviderRegistry ()
	Returns the global data item GUI provider registry, used for tracking providers which affect the browser GUI. More...
static QgsEditorWidgetRegistry *	editorWidgetRegistry ()
	Returns the global editor widget registry, used for managing all known edit widget factories. More...
static void	enableAutoGeometryRestore (QWidget *widget, const QString &key=QString())
	Register the widget to allow its position to be automatically saved and restored when open and closed. More...
static QScreen *	findScreenAt (QPoint point)
	Returns the screen at the given global point (pixel). More...
static QgsGui::HigFlags	higFlags ()
	Returns the platform's HIG flags. More...
static QgsHistoryProviderRegistry *	historyProviderRegistry ()
	Returns the global history provider registry, used for tracking history providers. More...
static QgsGui *	instance ()
	Returns a pointer to the singleton instance. More...
static QgsLayerTreeEmbeddedWidgetRegistry *	layerTreeEmbeddedWidgetRegistry ()
	Returns the global layer tree embedded widget registry, used for registering widgets that may be embedded into layer tree view. More...
static QgsLayoutItemGuiRegistry *	layoutItemGuiRegistry ()
	Returns the global layout item GUI registry, used for registering the GUI behavior of layout items. More...
static QgsMapLayerActionRegistry *	mapLayerActionRegistry ()
	Returns the global map layer action registry, used for registering map layer actions. More...
static QgsMapToolShapeRegistry *	mapToolShapeRegistry ()
	Returns the registry of shape map tools. More...
static QgsNative *	nativePlatformInterface ()
	Returns the global native interface, which offers abstraction to the host OS's underlying public interfaces. More...
static QgsNumericFormatGuiRegistry *	numericFormatGuiRegistry ()
	Returns the global numeric format gui registry, used for registering the GUI widgets associated with QgsNumericFormats. More...
static QgsProcessingGuiRegistry *	processingGuiRegistry ()
	Returns the global processing gui registry, used for registering the GUI behavior of processing algorithms. More...
static QgsProcessingRecentAlgorithmLog *	processingRecentAlgorithmLog ()
	Returns the global processing recent algorithm log, used for tracking recently used processing algorithms. More...
static QgsProjectStorageGuiRegistry *	projectStorageGuiRegistry ()
	Returns the global GUI-related project storage registry. More...
static QgsProviderGuiRegistry *	providerGuiRegistry ()
	Returns the registry of GUI-related components of data providers. More...
static bool	pythonMacroAllowed (void(*lambda)()=nullptr, QgsMessageBar *messageBar=nullptr)
	Returns true if python macros are currently allowed to be run If the global option is to ask user, a modal dialog will be shown. More...
static QgsRelationWidgetRegistry *	relationWidgetRegistry ()
	Returns the global relation widget registry, used for managing all known relation widget factories. More...
static QColor	sampleColor (QPoint point)
	Samples the color on screen at the specified global point (pixel). More...
static QgsSettingsRegistryGui *	settingsRegistryGui ()
	Returns the gui's settings registry, used for managing gui settings. More...
static void	setWindowManager (QgsWindowManagerInterface *manager)
	Sets the global window manager. More...
static QgsShortcutsManager *	shortcutsManager ()
	Returns the global shortcuts manager, used for managing a QAction and QShortcut sequences. More...
static QgsSourceSelectProviderRegistry *	sourceSelectProviderRegistry ()
	Returns the global source select provider registry, used for managing all known source select widget factories. More...
static QgsProviderSourceWidgetProviderRegistry *	sourceWidgetProviderRegistry ()
	Returns the registry of provider source widget providers. More...
static QgsSubsetStringEditorProviderRegistry *	subsetStringEditorProviderRegistry ()
	Returns the registry of subset string editors of data providers. More...
static QgsWindowManagerInterface *	windowManager ()
	Returns the global window manager, if set. More...

Detailed Description

QgsGui is a singleton class containing various registry and other global members related to GUI classes.

Since

QGIS 3.0

Definition at line 57 of file qgsgui.h.

Member Enumeration Documentation

HigFlag

enum QgsGui::HigFlag

HIG flags, which indicate the Human Interface Guidelines for the current platform.

Since

QGIS 3.4

Enumerator
HigMenuTextIsTitleCase	Menu action texts should be title case.
HigDialogTitleIsTitleCase	Dialog titles should be title case.

Definition at line 232 of file qgsgui.h.

ProjectCrsBehavior

enum QgsGui::ProjectCrsBehavior

Defines the behavior to use when setting the CRS for a newly created project.

Enumerator
UseCrsOfFirstLayerAdded	Set the project CRS to the CRS of the first layer added to a new project.
UsePresetCrs	Always set new projects to use a preset default CRS.

Definition at line 66 of file qgsgui.h.

Constructor & Destructor Documentation

QgsGui()

QgsGui::QgsGui ( const QgsGui &  other )

delete

QgsGui cannot be copied.

~QgsGui()

QgsGui::~QgsGui

(

)

Definition at line 209 of file qgsgui.cpp.

Member Function Documentation

annotationItemGuiRegistry()

QgsAnnotationItemGuiRegistry * QgsGui::annotationItemGuiRegistry ( )

static

Returns the global annotation item GUI registry, used for registering the GUI behavior of annotation items.

Since

QGIS 3.22

Definition at line 133 of file qgsgui.cpp.

codeEditorColorSchemeRegistry()

QgsCodeEditorColorSchemeRegistry * QgsGui::codeEditorColorSchemeRegistry ( )

static

Returns the global code editor color scheme registry, used for registering the color schemes for QgsCodeEditor widgets.

Since

QGIS 3.16

Definition at line 148 of file qgsgui.cpp.

dataItemGuiProviderRegistry()

QgsDataItemGuiProviderRegistry * QgsGui::dataItemGuiProviderRegistry ( )

static

Returns the global data item GUI provider registry, used for tracking providers which affect the browser GUI.

Since

QGIS 3.6

Definition at line 158 of file qgsgui.cpp.

editorWidgetRegistry()

QgsEditorWidgetRegistry * QgsGui::editorWidgetRegistry ( )

static

Returns the global editor widget registry, used for managing all known edit widget factories.

Definition at line 83 of file qgsgui.cpp.

enableAutoGeometryRestore()

void QgsGui::enableAutoGeometryRestore ( QWidget *  widget, const QString &  key = QString()  )

static

Register the widget to allow its position to be automatically saved and restored when open and closed.

Use this to avoid needing to call saveGeometry() and restoreGeometry() on your widget.

Definition at line 178 of file qgsgui.cpp.

findScreenAt()

QScreen * QgsGui::findScreenAt ( QPoint  point )

static

Returns the screen at the given global point (pixel).

Since

QGIS 3.10

Definition at line 250 of file qgsgui.cpp.

higFlags()

QgsGui::HigFlags QgsGui::higFlags ( )

static

Returns the platform's HIG flags.

Since

QGIS 3.4

Definition at line 197 of file qgsgui.cpp.

historyProviderRegistry()

QgsHistoryProviderRegistry * QgsGui::historyProviderRegistry ( )

static

Returns the global history provider registry, used for tracking history providers.

Since

QGIS 3.24

Definition at line 173 of file qgsgui.cpp.

instance()

QgsGui * QgsGui::instance ( )

static

Returns a pointer to the singleton instance.

Definition at line 67 of file qgsgui.cpp.

layerTreeEmbeddedWidgetRegistry()

QgsLayerTreeEmbeddedWidgetRegistry * QgsGui::layerTreeEmbeddedWidgetRegistry ( )

static

Returns the global layer tree embedded widget registry, used for registering widgets that may be embedded into layer tree view.

Definition at line 118 of file qgsgui.cpp.

layoutItemGuiRegistry()

QgsLayoutItemGuiRegistry * QgsGui::layoutItemGuiRegistry ( )

static

Returns the global layout item GUI registry, used for registering the GUI behavior of layout items.

Definition at line 128 of file qgsgui.cpp.

mapLayerActionRegistry()

QgsMapLayerActionRegistry * QgsGui::mapLayerActionRegistry ( )

static

Returns the global map layer action registry, used for registering map layer actions.

Definition at line 123 of file qgsgui.cpp.

mapToolShapeRegistry()

QgsMapToolShapeRegistry * QgsGui::mapToolShapeRegistry ( )

static

Returns the registry of shape map tools.

Note

Not available in Python bindings

Since

QGIS 3.26

Definition at line 93 of file qgsgui.cpp.

nativePlatformInterface()

QgsNative * QgsGui::nativePlatformInterface ( )

static

Returns the global native interface, which offers abstraction to the host OS's underlying public interfaces.

Note

Not available in Python bindings

Definition at line 73 of file qgsgui.cpp.

numericFormatGuiRegistry()

QgsNumericFormatGuiRegistry * QgsGui::numericFormatGuiRegistry ( )

static

Returns the global numeric format gui registry, used for registering the GUI widgets associated with QgsNumericFormats.

Since

QGIS 3.12

Definition at line 143 of file qgsgui.cpp.

operator=()

QgsGui & QgsGui::operator= ( const QgsGui &  other )

delete

QgsGui cannot be copied.

optionsChanged

void QgsGui::optionsChanged ( )

signal

This signal is emitted whenever the application options have been changed.

This signal is a "blanket" signal, and will be emitted whenever the options dialog has been accepted regardless of whether or not individual settings are changed. It is designed as a "last resort" fallback only, allowing widgets to respond to possible settings changes.

Since

QGIS 3.16

processingGuiRegistry()

QgsProcessingGuiRegistry * QgsGui::processingGuiRegistry ( )

static

Returns the global processing gui registry, used for registering the GUI behavior of processing algorithms.

Since

QGIS 3.2

Definition at line 138 of file qgsgui.cpp.

processingRecentAlgorithmLog()

QgsProcessingRecentAlgorithmLog * QgsGui::processingRecentAlgorithmLog ( )

static

Returns the global processing recent algorithm log, used for tracking recently used processing algorithms.

Since

QGIS 3.4

Definition at line 153 of file qgsgui.cpp.

projectStorageGuiRegistry()

QgsProjectStorageGuiRegistry * QgsGui::projectStorageGuiRegistry ( )

static

Returns the global GUI-related project storage registry.

Since

QGIS 3.10

Definition at line 163 of file qgsgui.cpp.

providerGuiRegistry()

QgsProviderGuiRegistry * QgsGui::providerGuiRegistry ( )

static

Returns the registry of GUI-related components of data providers.

Since

QGIS 3.10

Definition at line 168 of file qgsgui.cpp.

pythonMacroAllowed()

bool QgsGui::pythonMacroAllowed ( void(*)()  lambda = nullptr, QgsMessageBar *  messageBar = nullptr  )

static

Returns true if python macros are currently allowed to be run If the global option is to ask user, a modal dialog will be shown.

Parameters

lambda	a pointer to a lambda method. If specified, the dialog is not modal, a message is shown with a button to enable macro. The lambda will be run either if macros are currently allowed or if the user accepts the message. The messageBar must be given in such case.
messageBar	the message bar must be provided if a lambda method is used.

Definition at line 320 of file qgsgui.cpp.

relationWidgetRegistry()

QgsRelationWidgetRegistry * QgsGui::relationWidgetRegistry ( )

static

Returns the global relation widget registry, used for managing all known relation widget factories.

Since

QGIS 3.18

Definition at line 88 of file qgsgui.cpp.

sampleColor()

QColor QgsGui::sampleColor ( QPoint  point )

static

Samples the color on screen at the specified global point (pixel).

Since

QGIS 3.10

Definition at line 235 of file qgsgui.cpp.

settingsRegistryGui()

QgsSettingsRegistryGui * QgsGui::settingsRegistryGui ( )

static

Returns the gui's settings registry, used for managing gui settings.

Since

QGIS 3.22

Definition at line 78 of file qgsgui.cpp.

setWindowManager()

void QgsGui::setWindowManager ( QgsWindowManagerInterface *  manager )

static

Sets the global window manager.

Ownership is transferred to the QgsGui instance.

See also

windowManager()

Since

QGIS 3.4

Definition at line 192 of file qgsgui.cpp.

shortcutsManager()

QgsShortcutsManager * QgsGui::shortcutsManager ( )

static

Returns the global shortcuts manager, used for managing a QAction and QShortcut sequences.

Definition at line 113 of file qgsgui.cpp.

sourceSelectProviderRegistry()

QgsSourceSelectProviderRegistry * QgsGui::sourceSelectProviderRegistry ( )

static

Returns the global source select provider registry, used for managing all known source select widget factories.

Definition at line 98 of file qgsgui.cpp.

sourceWidgetProviderRegistry()

QgsProviderSourceWidgetProviderRegistry * QgsGui::sourceWidgetProviderRegistry ( )

static

Returns the registry of provider source widget providers.

Since

QGIS 3.18

Definition at line 108 of file qgsgui.cpp.

subsetStringEditorProviderRegistry()

QgsSubsetStringEditorProviderRegistry * QgsGui::subsetStringEditorProviderRegistry ( )

static

Returns the registry of subset string editors of data providers.

Since

QGIS 3.18

Definition at line 103 of file qgsgui.cpp.

windowManager()

QgsWindowManagerInterface * QgsGui::windowManager ( )

static

Returns the global window manager, if set.

See also

setWindowManager()

Since

QGIS 3.4

Definition at line 187 of file qgsgui.cpp.

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The documentation for this class was generated from the following files:

• /build/qgis-3.28.0+99sid/src/gui/qgsgui.h
• /build/qgis-3.28.0+99sid/src/gui/qgsgui.cpp