KTextEditor::CodeCompletionModel

#include <KTextEditor/CodeCompletionModel>

Inheritance diagram for KTextEditor::CodeCompletionModel:

[legend]

Public Types
enum	Columns { Prefix = 0 , Icon , Scope , Name , Arguments , Postfix }

typedef QFlags< CompletionProperty >	CompletionProperties

enum	CompletionProperty { NoProperty = 0x0 , FirstProperty = 0x1 , Public = 0x1 , Protected = 0x2 , Private = 0x4 , Static = 0x8 , Const = 0x10 , Namespace = 0x20 , Class = 0x40 , Struct = 0x80 , Union = 0x100 , Function = 0x200 , Variable = 0x400 , Enum = 0x800 , Template = 0x1000 , TypeAlias = 0x2000 , Virtual = 0x4000 , Override = 0x8000 , Inline = 0x10000 , Friend = 0x20000 , Signal = 0x40000 , Slot = 0x80000 , LocalScope = 0x100000 , NamespaceScope = 0x200000 , GlobalScope = 0x400000 , LastProperty = GlobalScope }

enum	ExtraItemDataRoles { CompletionRole = Qt::UserRole , ScopeIndex , MatchQuality , SetMatchContext , HighlightingMethod , CustomHighlight , InheritanceDepth , IsExpandable , ExpandingWidget , ItemSelected , ArgumentHintDepth , BestMatchesCount , AccessibilityNext , AccessibilityPrevious , AccessibilityAccept , GroupRole , UnimportantItemRole , LastExtraItemDataRole }

enum	HighlightMethod { NoHighlighting = 0x0 , InternalHighlighting = 0x1 , CustomHighlighting = 0x2 }

typedef QFlags< HighlightMethod >	HighlightMethods

enum	InvocationType { AutomaticInvocation , UserInvocation , ManualInvocation }

Public Types inherited from QAbstractItemModel
enum	CheckIndexOption

typedef	CheckIndexOptions

enum	LayoutChangeHint

Public Types inherited from QObject
typedef	QObjectList

Signals
void	hasGroupsChanged (KTextEditor::CodeCompletionModel *model, bool hasGroups)

void	waitForReset ()

Public Member Functions
	CodeCompletionModel (QObject *parent)

int	columnCount (const QModelIndex &parent=QModelIndex()) const override

virtual void	completionInvoked (KTextEditor::View *view, const KTextEditor::Range &range, InvocationType invocationType)

virtual void	executeCompletionItem (KTextEditor::View *view, const Range &word, const QModelIndex &index) const

bool	hasGroups () const

QModelIndex	index (int row, int column, const QModelIndex &parent=QModelIndex()) const override

QMap< int, QVariant >	itemData (const QModelIndex &index) const override

QModelIndex	parent (const QModelIndex &index) const override

int	rowCount (const QModelIndex &parent=QModelIndex()) const override

void	setRowCount (int rowCount)

Public Member Functions inherited from QAbstractItemModel
	QAbstractItemModel (QObject *parent)

virtual QModelIndex	buddy (const QModelIndex &index) const const

virtual bool	canDropMimeData (const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent) const const

virtual bool	canFetchMore (const QModelIndex &parent) const const

bool	checkIndex (const QModelIndex &index, CheckIndexOptions options) const const

virtual bool	clearItemData (const QModelIndex &index)

void	columnsAboutToBeInserted (const QModelIndex &parent, int first, int last)

void	columnsAboutToBeMoved (const QModelIndex &sourceParent, int sourceStart, int sourceEnd, const QModelIndex &destinationParent, int destinationColumn)

void	columnsAboutToBeRemoved (const QModelIndex &parent, int first, int last)

void	columnsInserted (const QModelIndex &parent, int first, int last)

void	columnsMoved (const QModelIndex &sourceParent, int sourceStart, int sourceEnd, const QModelIndex &destinationParent, int destinationColumn)

void	columnsRemoved (const QModelIndex &parent, int first, int last)

virtual QVariant	data (const QModelIndex &index, int role) const const=0

void	dataChanged (const QModelIndex &topLeft, const QModelIndex &bottomRight, const QList< int > &roles)

virtual bool	dropMimeData (const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent)

virtual void	fetchMore (const QModelIndex &parent)

virtual Qt::ItemFlags	flags (const QModelIndex &index) const const

virtual bool	hasChildren (const QModelIndex &parent) const const

bool	hasIndex (int row, int column, const QModelIndex &parent) const const

virtual QVariant	headerData (int section, Qt::Orientation orientation, int role) const const

void	headerDataChanged (Qt::Orientation orientation, int first, int last)

bool	insertColumn (int column, const QModelIndex &parent)

virtual bool	insertColumns (int column, int count, const QModelIndex &parent)

bool	insertRow (int row, const QModelIndex &parent)

virtual bool	insertRows (int row, int count, const QModelIndex &parent)

void	layoutAboutToBeChanged (const QList< QPersistentModelIndex > &parents, QAbstractItemModel::LayoutChangeHint hint)

void	layoutChanged (const QList< QPersistentModelIndex > &parents, QAbstractItemModel::LayoutChangeHint hint)

virtual QModelIndexList	match (const QModelIndex &start, int role, const QVariant &value, int hits, Qt::MatchFlags flags) const const

virtual QMimeData *	mimeData (const QModelIndexList &indexes) const const

virtual QStringList	mimeTypes () const const

void	modelAboutToBeReset ()

void	modelReset ()

bool	moveColumn (const QModelIndex &sourceParent, int sourceColumn, const QModelIndex &destinationParent, int destinationChild)

virtual bool	moveColumns (const QModelIndex &sourceParent, int sourceColumn, int count, const QModelIndex &destinationParent, int destinationChild)

bool	moveRow (const QModelIndex &sourceParent, int sourceRow, const QModelIndex &destinationParent, int destinationChild)

virtual bool	moveRows (const QModelIndex &sourceParent, int sourceRow, int count, const QModelIndex &destinationParent, int destinationChild)

virtual void	multiData (const QModelIndex &index, QModelRoleDataSpan roleDataSpan) const const

bool	removeColumn (int column, const QModelIndex &parent)

virtual bool	removeColumns (int column, int count, const QModelIndex &parent)

bool	removeRow (int row, const QModelIndex &parent)

virtual bool	removeRows (int row, int count, const QModelIndex &parent)

virtual void	revert ()

virtual QHash< int, QByteArray >	roleNames () const const

void	rowsAboutToBeInserted (const QModelIndex &parent, int start, int end)

void	rowsAboutToBeMoved (const QModelIndex &sourceParent, int sourceStart, int sourceEnd, const QModelIndex &destinationParent, int destinationRow)

void	rowsAboutToBeRemoved (const QModelIndex &parent, int first, int last)

void	rowsInserted (const QModelIndex &parent, int first, int last)

void	rowsMoved (const QModelIndex &sourceParent, int sourceStart, int sourceEnd, const QModelIndex &destinationParent, int destinationRow)

void	rowsRemoved (const QModelIndex &parent, int first, int last)

virtual bool	setData (const QModelIndex &index, const QVariant &value, int role)

virtual bool	setHeaderData (int section, Qt::Orientation orientation, const QVariant &value, int role)

virtual bool	setItemData (const QModelIndex &index, const QMap< int, QVariant > &roles)

virtual QModelIndex	sibling (int row, int column, const QModelIndex &index) const const

virtual void	sort (int column, Qt::SortOrder order)

virtual QSize	span (const QModelIndex &index) const const

virtual bool	submit ()

virtual Qt::DropActions	supportedDragActions () const const

virtual Qt::DropActions	supportedDropActions () const const

Public Member Functions inherited from QObject
	QObject (QObject *parent)

QBindable< QString >	bindableObjectName ()

bool	blockSignals (bool block)

const QObjectList &	children () const const

QMetaObject::Connection	connect (const QObject sender, const char signal, const char *method, Qt::ConnectionType type) const const

void	deleteLater ()

void	destroyed (QObject *obj)

bool	disconnect (const char signal, const QObject receiver, const char *method) const const

bool	disconnect (const QObject receiver, const char method) const const

void	dumpObjectInfo () const const

void	dumpObjectTree () const const

QList< QByteArray >	dynamicPropertyNames () const const

virtual bool	event (QEvent *e)

virtual bool	eventFilter (QObject watched, QEvent event)

T	findChild (const QString &name, Qt::FindChildOptions options) const const

QList< T >	findChildren (const QRegularExpression &re, Qt::FindChildOptions options) const const

QList< T >	findChildren (const QString &name, Qt::FindChildOptions options) const const

QList< T >	findChildren (Qt::FindChildOptions options) const const

bool	inherits (const char *className) const const

void	installEventFilter (QObject *filterObj)

bool	isQuickItemType () const const

bool	isWidgetType () const const

bool	isWindowType () const const

void	killTimer (int id)

virtual const QMetaObject *	metaObject () const const

void	moveToThread (QThread *targetThread)

QString	objectName () const const

void	objectNameChanged (const QString &objectName)

QObject *	parent () const const

QVariant	property (const char *name) const const

	Q_CLASSINFO (Name, Value)

	Q_EMIT Q_EMIT

	Q_ENUM (...)

	Q_ENUM_NS (...)

	Q_ENUMS (...)

	Q_FLAG (...)

	Q_FLAG_NS (...)

	Q_FLAGS (...)

	Q_GADGET Q_GADGET

	Q_GADGET_EXPORT (EXPORT_MACRO)

	Q_INTERFACES (...)

	Q_INVOKABLE Q_INVOKABLE

	Q_MOC_INCLUDE Q_MOC_INCLUDE

	Q_NAMESPACE Q_NAMESPACE

	Q_NAMESPACE_EXPORT (EXPORT_MACRO)

	Q_OBJECT Q_OBJECT

	Q_PROPERTY (...)

	Q_REVISION Q_REVISION

	Q_SET_OBJECT_NAME (Object)

	Q_SIGNAL Q_SIGNAL

	Q_SIGNALS Q_SIGNALS

	Q_SLOT Q_SLOT

	Q_SLOTS Q_SLOTS

T	qobject_cast (const QObject *object)

T	qobject_cast (QObject *object)

	QT_NO_NARROWING_CONVERSIONS_IN_CONNECT QT_NO_NARROWING_CONVERSIONS_IN_CONNECT

void	removeEventFilter (QObject *obj)

void	setObjectName (const QString &name)

void	setObjectName (QAnyStringView name)

void	setParent (QObject *parent)

bool	setProperty (const char *name, const QVariant &value)

bool	setProperty (const char *name, QVariant &&value)

bool	signalsBlocked () const const

int	startTimer (int interval, Qt::TimerType timerType)

int	startTimer (std::chrono::milliseconds interval, Qt::TimerType timerType)

QThread *	thread () const const

Static Public Attributes
static const int	ColumnCount = Postfix + 1

Protected Member Functions
void	setHasGroups (bool hasGroups)

Protected Member Functions inherited from QAbstractItemModel
void	beginInsertColumns (const QModelIndex &parent, int first, int last)

void	beginInsertRows (const QModelIndex &parent, int first, int last)

bool	beginMoveColumns (const QModelIndex &sourceParent, int sourceFirst, int sourceLast, const QModelIndex &destinationParent, int destinationChild)

bool	beginMoveRows (const QModelIndex &sourceParent, int sourceFirst, int sourceLast, const QModelIndex &destinationParent, int destinationChild)

void	beginRemoveColumns (const QModelIndex &parent, int first, int last)

void	beginRemoveRows (const QModelIndex &parent, int first, int last)

void	beginResetModel ()

void	changePersistentIndex (const QModelIndex &from, const QModelIndex &to)

void	changePersistentIndexList (const QModelIndexList &from, const QModelIndexList &to)

QModelIndex	createIndex (int row, int column, const void *ptr) const const

QModelIndex	createIndex (int row, int column, quintptr id) const const

void	endInsertColumns ()

void	endInsertRows ()

void	endMoveColumns ()

void	endMoveRows ()

void	endRemoveColumns ()

void	endRemoveRows ()

void	endResetModel ()

QModelIndexList	persistentIndexList () const const

virtual void	resetInternalData ()

Protected Member Functions inherited from QObject
virtual void	childEvent (QChildEvent *event)

virtual void	connectNotify (const QMetaMethod &signal)

virtual void	customEvent (QEvent *event)

virtual void	disconnectNotify (const QMetaMethod &signal)

bool	isSignalConnected (const QMetaMethod &signal) const const

int	receivers (const char *signal) const const

QObject *	sender () const const

int	senderSignalIndex () const const

virtual void	timerEvent (QTimerEvent *event)

Additional Inherited Members
Properties inherited from QObject
	objectName

Static Public Member Functions inherited from QObject
QMetaObject::Connection	connect (const QObject sender, const char signal, const QObject receiver, const char method, Qt::ConnectionType type)

QMetaObject::Connection	connect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &method, Qt::ConnectionType type)

QMetaObject::Connection	connect (const QObject sender, PointerToMemberFunction signal, const QObject context, Functor functor, Qt::ConnectionType type)

QMetaObject::Connection	connect (const QObject sender, PointerToMemberFunction signal, const QObject receiver, PointerToMemberFunction method, Qt::ConnectionType type)

QMetaObject::Connection	connect (const QObject *sender, PointerToMemberFunction signal, Functor functor)

bool	disconnect (const QMetaObject::Connection &connection)

bool	disconnect (const QObject sender, const char signal, const QObject receiver, const char method)

bool	disconnect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &method)

bool	disconnect (const QObject sender, PointerToMemberFunction signal, const QObject receiver, PointerToMemberFunction method)

QString	tr (const char sourceText, const char disambiguation, int n)

Public Attributes inherited from QAbstractItemModel
	DoNotUseParent

	HorizontalSortHint

	IndexIsValid

	NoLayoutChangeHint

	NoOption

	ParentIsInvalid

	VerticalSortHint

Detailed Description

An item model for providing code completion, and meta information for enhanced presentation.

Introduction

The CodeCompletionModel is the actual workhorse to provide code completions in a KTextEditor::View. It is meant to be used in conjunction with the View. The CodeCompletionModel is not meant to be used as is. Rather you need to implement a subclass of CodeCompletionModel to actually generate completions appropriate for your type of Document.

Implementing a CodeCompletionModel

The CodeCompletionModel is a QAbstractItemModel, and can be subclassed in the same way. It provides default implementations of several members, however, so in most cases (if your completions are essentially a non-hierarchical, flat list of matches) you will only need to overload few virtual functions.

Implementing a CodeCompletionModel for a flat list

For the simple case of a flat list of completions, you will need to:

Implement completionInvoked() to actually generate/update the list of completion matches
implement itemData() (or QAbstractItemModel::data()) to return the information that should be displayed for each match.
use setRowCount() to reflect the number of matches.

Columns and roles

Todo: document the meaning and usage of the columns and roles used by the Completion Interface

Using the new CodeCompletionModel

To start using your KTextEditor::View Completion Interface.

ControllerInterface to get more control

To have more control over code completion implement CodeCompletionModelControllerInterface in your CodeCompletionModel.

See also: CodeCompletionModelControllerInterface

Author: Hamish Rodda rodda.nosp@m.@kde.nosp@m..org

Definition at line 67 of file codecompletionmodel.h.

Member Typedef Documentation

◆ CompletionProperties

QFlags< CompletionProperty > KTextEditor::CodeCompletionModel::CompletionProperties

Stores a combination of CompletionProperty values.

Definition at line 130 of file codecompletionmodel.h.

◆ HighlightMethods

QFlags< HighlightMethod > KTextEditor::CodeCompletionModel::HighlightMethods

Stores a combination of HighlightMethod values.

Definition at line 139 of file codecompletionmodel.h.

Member Enumeration Documentation

◆ Columns

enum KTextEditor::CodeCompletionModel::Columns

Enumerator
Icon	Icon representing the type of completion. We have a separate icon field so that names remain aligned where only some completions have icons, and so that they can be rearranged by the user.

Definition at line 75 of file codecompletionmodel.h.

◆ CompletionProperty

enum KTextEditor::CodeCompletionModel::CompletionProperty

See also: CompletionProperties

Definition at line 89 of file codecompletionmodel.h.

◆ ExtraItemDataRoles

enum KTextEditor::CodeCompletionModel::ExtraItemDataRoles

Meta information is passed through extra {Qt::ItemDataRole}s.

This information should be returned when requested on the Name column.

Enumerator
CompletionRole	The model should return a set of CompletionProperties.
ScopeIndex	The model should return an index to the scope -1 represents no scope. Todo how to sort scope?
MatchQuality	If requested, your model should try to determine whether the completion in question is a suitable match for the context (ie. is accessible, exported, + returns the data type required). The returned data should ideally be matched against the argument-hint context set earlier by SetMatchContext. Return an integer value that should be positive if the completion is suitable, and zero if the completion is not suitable. The value should be between 0 an 10, where 10 means perfect match. Return QVariant::Invalid if you are unable to determine this.
SetMatchContext	Is requested before MatchQuality(..) is requested. The item on which this is requested is an argument-hint item( See also ArgumentHintDepth). When this role is requested, the item should be noted, and whenever MatchQuality is requested, it should be computed by matching the item given with MatchQuality into the context chosen by SetMatchContext. Feel free to ignore this, but ideally you should return QVariant::Invalid to make clear that your model does not support this.
HighlightingMethod	Define which highlighting method will be used: QVariant::Invalid - allows the editor to choose (usually internal highlighting) QVariant::Integer - highlight as specified by HighlightMethods.
CustomHighlight	Allows an item to provide custom highlighting. Return a QList<QVariant> in the following format: int startColumn (where 0 = start of the completion entry) int endColumn (note: not length) QTextFormat attribute (note: attribute may be a KTextEditor::Attribute, as it is a child class) If the attribute is invalid, and the item is an argument-hint, the text will be drawn with a background-color depending on match-quality, or yellow. You can use that to mark the actual arguments that are matched in an argument-hint. Repeat this triplet as many times as required, however each column must be >= the previous, and startColumn != endColumn.
InheritanceDepth	Returns the inheritance depth of the completion. For example, a completion which comes from the base class would have depth 0, one from a parent class would have depth 1, one from that class' parent 2, etc. you can use this to symbolize the general distance of a completion-item from a user. It will be used for sorting.
IsExpandable	This allows items in the completion-list to be expandable. If a model returns an QVariant bool value that evaluates to true, the completion-widget will draw a handle to expand the item, and will also make that action accessible through keyboard.
ExpandingWidget	After a model returned true for a row on IsExpandable, the row may be expanded by the user. When this happens, ExpandingWidget is requested. The model may return two types of values: QWidget: If the model returns a QVariant of type QWidget, the code-completion takes over the given widget and embeds it into the completion-list under the completion-item. The widget will be automatically deleted at some point. The completion-widget will use the height of the widget as a hint for its preferred size, but it will resize the widget at will. QString: If the mode returns a QVariant of type QString, it will create a small html-widget showing the given html-code, and embed it into the completion-list under the completion-item. Warning QWidget* widget; return QVariant(widget); QVariant QWidget Will not work correctly! Use the following instead.: QVariant v; v.setValue<QWidget*>(widget); return v; QVariant::setValue void setValue(QVariant &&value)
ItemSelected	Whenever an item is selected, this will be requested from the underlying model. It may be used as a simple notification that the item was selected. Above that, the model may return a QString, which then should then contain html-code. A html-widget will then be displayed as a one- or two-liner under the currently selected item(it will be partially expanded)
ArgumentHintDepth	Is this completion-item an argument-hint? The model should return an integral positive number if the item is an argument-hint, and QVariant() or 0 if it is not one. The returned depth-integer is important for sorting and matching. Example: "otherFunction(function1(function2(" all functions named function2 should have ArgumentHintDepth 1, all functions found for function1 should have ArgumentHintDepth 2, and all functions named otherFunction should have ArgumentHintDepth 3 Later, a completed item may then be matched with the first argument of function2, the return-type of function2 with the first argument-type of function1, and the return-type of function1 with the argument-type of otherFunction. If the model returns a positive value on this role for a row, the content will be treated specially: It will be shown in a separate argument-hint list It will be sorted by Argument-hint depth Match-qualities will be illustrated by differently highlighting the matched argument if possible The argument-hint list strings will be built from all source-model, with a little special behavior: Prefix - Should be all text of the function-signature up to left of the matched argument of the function Name - Should be the type and name of the function's matched argument. This part will be highlighted differently depending on the match-quality Suffix - Should be all the text of the function-signature behind the matched argument Example: You are matching a function with signature "void test(int param1, int param2)", and you are matching the first argument. The model should then return: Prefix: "void test(" Name: "int param1" Suffix: ", int param2)" If you don't use the highlighting, matching, etc. you can also return the columns in the usual way.
BestMatchesCount	This will be requested for each item to ask whether it should be included in computing a best-matches list. If you return a valid positive integer n here, the n best matches will be listed at top of the completion-list separately. This is expensive because all items of the whole completion-list will be tested for their matching-quality, with each of the level 1 argument-hints. For that reason the end-user should be able to disable this feature.
AccessibilityNext	The following three enumeration-values are only used on expanded completion-list items that contain an expanding-widget(. See also ExpandingWidget) You can use them to allow the user to interact with the widget by keyboard. AccessibilityNext will be requested on an item if it is expanded, contains an expanding-widget, and the user triggers a special navigation short-cut to go to navigate to the next position within the expanding-widget(if applicable). Return QVariant(true) if the input was used.
AccessibilityPrevious	AccessibilityPrevious will be requested on an item if it is expanded, contains an expanding-widget, and the user triggers a special navigation short-cut to go to navigate to the previous position within the expanding-widget(if applicable). Return QVariant(true) if the input was used.
AccessibilityAccept	AccessibilityAccept will be requested on an item if it is expanded, contains an expanding-widget, and the user triggers a special shortcut to trigger the action associated with the position within the expanding-widget the user has navigated to using AccessibilityNext and AccessibilityPrevious. This should return QVariant(true) if an action was triggered, else QVariant(false) or QVariant().
GroupRole	Using this Role, it is possible to greatly optimize the time needed to process very long completion-lists. In the completion-list, the items are usually ordered by some properties like argument-hint depth, inheritance-depth and attributes. Kate usually has to query the completion-models for these values for each item in the completion-list in order to extract the argument-hints and correctly sort the completion-list. However, with a very long completion-list, only a very small fraction of the items is actually visible. By using a tree structure you can give the items in a grouped order to kate, so it does not need to look at each item and query data in order to initially show the completion-list. This is how it works: You create a tree-structure for your items Every inner node of the tree defines one attribute value that all sub-nodes have in common. When the inner node is queried for GroupRole, it should return the "ExtraItemDataRoles" that all sub-nodes have in common When the inner node is then queried for that exact role, it should return that value. No other queries will be done to inner nodes. Every leaf node stands for an actual item in the completion list. The recommended grouping order is: Argument-hint depth, inheritance depth, attributes. This role can also be used to define completely custom groups, bypassing the editors builtin grouping: Return Qt::DisplayRole when GroupRole is requested Return the label text of the group when Qt::DisplayRole Optional: Return an integer sorting-value when InheritanceDepth is requested. This number will be used to determine the order of the groups. The order of the builtin groups is: 1 = Best Matches, 100 = Local Scope, 200 = Public, 300 = Protected, 400 = Private, 500 = Namespace, 600 = Global You can pick any arbitrary number to position your group relative to these builtin groups.
UnimportantItemRole	Return a nonzero value here to enforce sorting the item at the end of the list.

Definition at line 143 of file codecompletionmodel.h.

◆ HighlightMethod

enum KTextEditor::CodeCompletionModel::HighlightMethod

See also: HighlightMethods

Definition at line 133 of file codecompletionmodel.h.

◆ InvocationType

enum KTextEditor::CodeCompletionModel::InvocationType

Definition at line 364 of file codecompletionmodel.h.

Constructor & Destructor Documentation

◆ CodeCompletionModel()

CodeCompletionModel::CodeCompletionModel ( QObject * parent )

explicit

Definition at line 25 of file codecompletionmodel.cpp.

◆ ~CodeCompletionModel()

CodeCompletionModel::~CodeCompletionModel ( )

override

Definition at line 31 of file codecompletionmodel.cpp.

Member Function Documentation

◆ columnCount()

int CodeCompletionModel::columnCount ( const QModelIndex & parent = QModelIndex() ) const

overridevirtual

Reimplemented from QAbstractItemModel::columnCount().

The default implementation returns ColumnCount for all indices.

Implements QAbstractItemModel.

Definition at line 36 of file codecompletionmodel.cpp.

◆ completionInvoked()

void CodeCompletionModel::completionInvoked	(	KTextEditor::View *	view,
		const KTextEditor::Range &	range,
		InvocationType	invocationType )

virtual

This function is responsible to generating / updating the list of current completions.

The default implementation does nothing.

When implementing this function, remember to call setRowCount() (or implement rowCount()), and to generate the appropriate change notifications (for instance by calling QAbstractItemModel::reset()).

Parameters

view	The view to generate completions for
range	The range of text to generate completions for
invocationType	How the code completion was triggered

Reimplemented in KateKeywordCompletionModel.

Definition at line 83 of file codecompletionmodel.cpp.

◆ executeCompletionItem()

void CodeCompletionModel::executeCompletionItem	(	KTextEditor::View *	view,
		const Range &	word,
		const QModelIndex &	index ) const

virtual

This function is responsible for inserting a selected completion into the view.

The default implementation replaces the text that the completions were based on with the Qt::DisplayRole of the Name column of the given match.

Parameters

view	the view to insert the completion into
word	the Range that the completions are based on (what the user entered so far)
index	identifies the completion match to insert

Definition at line 90 of file codecompletionmodel.cpp.

◆ hasGroups()

bool CodeCompletionModel::hasGroups ( ) const

This function returns true if the model needs grouping, otherwise false.

The default is false if not changed via setHasGroups().

Definition at line 95 of file codecompletionmodel.cpp.

◆ hasGroupsChanged

void KTextEditor::CodeCompletionModel::hasGroupsChanged	(	KTextEditor::CodeCompletionModel *	model,
		bool	hasGroups )

signal

Internal.

◆ index()

QModelIndex CodeCompletionModel::index	(	int	row,
		int	column,
		const QModelIndex &	parent = QModelIndex() ) const

overridevirtual

Reimplemented from QAbstractItemModel::index().

The default implementation returns a standard QModelIndex as long as the row and column are valid.

Implements QAbstractItemModel.

Reimplemented in KateKeywordCompletionModel.

Definition at line 41 of file codecompletionmodel.cpp.

◆ itemData()

QMap< int, QVariant > CodeCompletionModel::itemData ( const QModelIndex & index ) const

overridevirtual

Reimplemented from QAbstractItemModel::itemData().

The default implementation returns a map with the QAbstractItemModel::data() for all roles that are used by the CodeCompletionInterface. You will need to reimplement either this function or QAbstractItemModel::data() in your CodeCompletionModel.

Reimplemented from QAbstractItemModel.

Definition at line 50 of file codecompletionmodel.cpp.

◆ parent()

QModelIndex CodeCompletionModel::parent ( const QModelIndex & index ) const

overridevirtual

Reimplemented from QAbstractItemModel::parent().

The default implementation returns an invalid QModelIndex for all items. This is appropriate for non-hierarchical / flat lists of completions.

Implements QAbstractItemModel.

Reimplemented in KateKeywordCompletionModel.

Definition at line 64 of file codecompletionmodel.cpp.

◆ rowCount()

int CodeCompletionModel::rowCount ( const QModelIndex & parent = QModelIndex() ) const

overridevirtual

Reimplemented from QAbstractItemModel::rowCount().

The default implementation returns the value set by setRowCount() for invalid (toplevel) indices, and 0 for all other indices. This is appropriate for non-hierarchical / flat lists of completions

Implements QAbstractItemModel.

Reimplemented in KateKeywordCompletionModel.

Definition at line 74 of file codecompletionmodel.cpp.

◆ setHasGroups()

void CodeCompletionModel::setHasGroups ( bool hasGroups )

protected

Definition at line 100 of file codecompletionmodel.cpp.

◆ setRowCount()

void CodeCompletionModel::setRowCount ( int rowCount )

Definition at line 69 of file codecompletionmodel.cpp.

◆ waitForReset

void KTextEditor::CodeCompletionModel::waitForReset ( )

signal

Emit this if the code-completion for this model was invoked, some time is needed in order to get the data, and the model is reset once the data is available.

This only has an effect if emitted from within completionInvoked(..).

This prevents the code-completion list from showing until this model is reset, so there is no annoying flashing in the user-interface resulting from other models supplying their data earlier.

Note: The implementation may choose to show the completion-list anyway after some timeout

Warning: If you emit this, you must also reset the model at some point, else the code-completion will be completely broken to the user. Consider that there may always be additional completion-models apart from yours.

Since: 4.3

Member Data Documentation

◆ ColumnCount

const int KTextEditor::CodeCompletionModel::ColumnCount = Postfix + 1

static

Definition at line 86 of file codecompletionmodel.h.

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

KDE's Doxygen guidelines are available online.

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About KTextEditor

KTextEditor::CodeCompletionModel

Public Types

Signals

Public Member Functions

Static Public Attributes

Protected Member Functions

Additional Inherited Members

Detailed Description

Introduction

Implementing a CodeCompletionModel

Implementing a CodeCompletionModel for a flat list

Columns and roles

Using the new CodeCompletionModel

ControllerInterface to get more control

Member Typedef Documentation

◆ CompletionProperties

◆ HighlightMethods

Member Enumeration Documentation

◆ Columns

◆ CompletionProperty

◆ ExtraItemDataRoles

◆ HighlightMethod

◆ InvocationType

Constructor & Destructor Documentation

◆ CodeCompletionModel()

◆ ~CodeCompletionModel()

Member Function Documentation

◆ columnCount()

◆ completionInvoked()

◆ executeCompletionItem()

◆ hasGroups()

◆ hasGroupsChanged

◆ index()

◆ itemData()

◆ parent()

◆ rowCount()

◆ setHasGroups()

◆ setRowCount()

◆ waitForReset

Member Data Documentation

◆ ColumnCount