Core Namespace | Extending Qt Creator Manual
Description: The Core namespace contains all classes that make up the Core plugin which constitute the basic functionality of Qt Creator.

- Extending Qt Creator Manual
- Core Namespace
- Extending Qt Creator Manual 15.0.0

# Core Namespace

The Core namespace contains all classes that make up the Core plugin which constitute the basic functionality of Qt Creator. More...

Header: | `#include <Core>`

## Namespaces

namespace | MessageManager
namespace | SettingsDatabase

## Classes

class | ActionBuilder
class | ActionContainer
class | ActionManager
class | BaseFileWizard
class | BaseFileWizardFactory
class | BaseTextDocument
class | BaseTextFind
class | Command
class | Context
class | DesignMode
class | DocumentManager
class | EditorManager
class | EditorManagerPlaceHolder
class | FileChangeBlocker
class | FutureProgress
class | GeneratedFile
class | IContext
class | ICore
class | IDocument
class | IEditor
class | IEditorFactory
class | IFeatureProvider
class | IFindFilter
class | IFindSupport
class | ILocatorFilter
class | IMode
class | INavigationWidgetFactory
class | IOptionsPage
class | IOptionsPageWidget
class | IOutputPane
class | IWizardFactory
class | LocatorFileCache
class | MiniSplitter
class | ModeManager
struct | NavigationView
class | NonResizingSplitter
class | ProcessProgress
class | ProgressManager
class | SearchResult
class | SearchResultWindow
class | SessionManager
class | TaskProgress
class | WizardDialogParameters

## Detailed Description

## Namespaces

### namespace Core::MessageManager

### namespace Core::SettingsDatabase

The settings database is SQLite based, and lazily retrieves data when it is asked for. It also does incremental updates of the database rather than rewriting the whole file each time one of the settings change.

The SettingsDatabase API mimics that of QSettings.

See also settings().

## Classes

### class ActionBuilder

The ActionBuilder class is convienience class to set up Core::Commands. More...

### class ActionContainer

The ActionContainer class represents a menu or menu bar in Qt Creator. More...

### class ActionManager

The ActionManager class is responsible for registration of menus and menu items and keyboard shortcuts. More...

### class BaseFileWizard

The BaseFileWizard class implements a is a convenience class for creating files. More...

### class BaseFileWizardFactory

The BaseFileWizardFactory class implements a generic wizard for creating files. More...

### class BaseTextDocument

The BaseTextDocument class is a very general base class for documents that work with text. More...

### class BaseTextFind

The BaseTextFind class implements a find filter for QPlainTextEdit and QTextEdit based widgets. More...

### class Command

The Command class represents an action, such as a menu item, tool button, or shortcut. More...

### class Context

The Context class implements a list of context IDs. More...

### class DesignMode

The DesignMode class implements the mode for the Design mode, which is for example used by Qt Quick Designer and Qt Widgets Designer. More...

### class DocumentManager

The DocumentManager class manages a set of documents. More...

### class EditorManager

The EditorManager class manages the editors created for files according to their MIME type. More...

### class EditorManagerPlaceHolder

The EditorManagerPlaceHolder class is used to integrate an editor area into a mode. More...

### class FileChangeBlocker

The FileChangeBlocker class blocks all change notifications to all IDocument objects that match the given filename. More...

### class FutureProgress

The FutureProgress class is used to adapt the appearance of progress indicators that were created through the ProgressManager class. More...

### class GeneratedFile

The GeneratedFile class represents a file generated by a wizard. More...

### class IContext

The IContext class associates a widget with a context list and context help. More...

### class ICore

The ICore class allows access to the different parts that make up the basic functionality of Qt Creator. More...

### class IDocument

The IDocument class describes a document that can be saved and reloaded. More...

### class IEditor

The IEditor class provides an interface for editing an open document in Qt Creator. More...

### class IEditorFactory

The IEditorFactory class creates suitable editors for documents according to their MIME type. More...

### class IFeatureProvider

The IFeatureProvider class defines an interface to manage features for wizards. More...

### class IFindFilter

The IFindFilter class is the base class for find implementations that are invoked by selecting Edit > Find/Replace > Advanced Find. More...

### class IFindSupport

The IFindSupport class provides functions for searching in a document or widget. More...

### class ILocatorFilter

The ILocatorFilter class adds a locator filter. More...

### class IMode

The IMode class represents a mode in Qt Creator. More...

### class INavigationWidgetFactory

The INavigationWidgetFactory class provides new instances of navigation widgets. More...

### class IOptionsPage

The IOptionsPage class is an interface for providing pages for the Options dialog (called Preferences on macOS). More...

### class IOptionsPageWidget

The IOptionsPageWidget class is used to standardize the interaction between an IOptionsPage and its widget. More...

### class IOutputPane

The IOutputPane class is an interface for providing Output panes. More...

### class IWizardFactory

The IWizardFactory class is the base class for all wizard factories. More...

### class LocatorFileCache

The LocatorFileCache class encapsulates all the responsibilities needed for implementing a cache for file filters. More...

### class MiniSplitter

The MiniSplitter class is a simple helper-class to obtain macOS style 1-pixel wide splitters. More...

### class ModeManager

The ModeManager class manages the activation of modes and the actions in the mode selector's tool bar. More...

### class NavigationView

The NavigationView class is a C struct for wrapping a widget and a list of tool buttons. Wrapping the widget that is shown in the content area of the navigation widget and a list of tool buttons that is shown in the header above it. More...

### class NonResizingSplitter

The NonResizingSplitter class is a MiniSplitter that keeps its first widget's size fixed when it is resized. More...

### class ProcessProgress

The ProcessProgress class is responsible for showing progress of the running process. More...

### class ProgressManager

The ProgressManager class is used to show a user interface for running tasks in Qt Creator. More...

### class SearchResult

The SearchResult class reports user interaction, such as the activation of a search result item. More...

### class SearchResultWindow

The SearchResultWindow class is the implementation of a commonly shared Search Results output pane. More...

### class SessionManager

The SessionManager class manages sessions. More...

### class TaskProgress

The TaskProgress class is responsible for showing progress of the running task tree. More...

### class WizardDialogParameters

The WizardDialogParameters class holds parameters for the new file wizard dialog. More...