Headless editing substrate - the text buffer, cursor, undo history and syntax colorizer with no ImGui dependency. More...

#include "donner/editor/TextEditorCore.h"

Public Types
using	UndoBuffer
	Chronological editing records retained for undo and redo.

Public Member Functions
	TextEditorCore (const TextEditorCore &)=delete
TextEditorCore &	operator= (const TextEditorCore &)=delete
	TextEditorCore (TextEditorCore &&)=delete
TextEditorCore &	operator= (TextEditorCore &&)=delete
void	setText (std::string_view text, bool preserveScroll=false)
	Replace the buffer contents with text. By default this scrolls the view back to the top - appropriate for File→Open and similar "load a different document" flows. Pass preserveScroll=true when the replacement is a small in-place edit (e.g. canvas→text writeback after a transform drag) so the user's scroll position isn't yanked out from under them. The cursor and selection are kept where they still fit and otherwise clamped into the new text.
void	applyExternalSourceEdit (std::size_t offset, std::size_t removedLength, std::string_view replacement)
	Apply a source-view update that originated outside the text editor.
std::string	getText () const
	Return the entire editable text buffer.
std::string	getText (const Coordinates &start, const Coordinates &end) const
	Return the text in the half-open coordinate range.
Coordinates	getCoordinatesAtByteOffset (std::size_t offset) const
	Resolve a full-buffer byte offset to editor coordinates.
bool	isTextChanged () const
	Report whether the text changed since the last reset; external source mirroring clears it.
void	resetTextChanged ()
	Clear the text-change flag and recorded changed lines.
bool	hasPendingSourceEditIntents () const
	True if user-facing edits have pending byte-level source intents.
std::vector< SourceEditIntent >	takePendingSourceEditIntents ()
	Consume pending byte-level source intents captured from user-facing edits.
Coordinates	getCursorPosition () const
	Return the cursor position clamped to the current buffer.
void	setCursorPosition (const Coordinates &position)
	Store a requested cursor position; reads clamp it to the current buffer.
void	setSelection (const Coordinates &start, const Coordinates &end, SelectionMode mode=SelectionMode::Normal)
	Select between two endpoints, storing ordered bounds and expanding words or lines.
void	setInteractiveSelection (const Coordinates &start, const Coordinates &end, SelectionMode mode=SelectionMode::Normal)
	Update the visible selection during an active mouse interaction while preserving the raw anchor/current endpoints in interactiveStart_/End_.
void	setSelectionStart (const Coordinates &position)
	Replace the ordered lower selection bound, swapping bounds if needed.
void	setSelectionEnd (const Coordinates &position)
	Replace the ordered upper selection bound, swapping bounds if needed.
const Coordinates &	getSelectionStart () const
	Return the ordered lower selection bound.
const Coordinates &	getSelectionEnd () const
	Return the ordered upper selection bound.
bool	hasSelection () const
	Report whether the selection spans any text.
std::string	getSelectedText () const
	Return the text covered by the current selection.
void	selectAll ()
	Select the entire text buffer.
void	selectWordUnderCursor ()
	Select the word containing the cursor.
void	moveUp (int amount=1, bool select=false)
	Move the cursor up by logical lines.
void	moveDown (int amount=1, bool select=false)
	Move the cursor down by logical lines.
void	moveLeft (int amount=1, bool select=false, bool wordMode=false)
	Move the cursor left by characters or words.
void	moveRight (int amount=1, bool select=false, bool wordMode=false)
	Move the cursor right by characters or words.
void	moveTop (bool select=false)
	Move the cursor to the start of the buffer.
void	moveBottom (bool select=false)
	Move the cursor to the end of the final line.
void	moveCursorTo (const Coordinates &position, bool select)
	Move the cursor to `position`. With `select` the selection extends from its anchor, the end the cursor did not occupy; otherwise it collapses to the cursor.
void	moveHome (bool select=false)
	Move the cursor to the start of its current line.
void	moveEnd (bool select=false)
	Move the cursor to the end of its current line.
void	enterCharacter (char32_t character, bool shift)
	Insert one character at the cursor or replace the selection.
void	insertText (std::string_view text, bool indent=false)
	Insert text at the cursor, optionally applying indentation.
int	insertTextAt (Coordinates &where, std::string_view text, bool indent=false)
	Insert text at a coordinate and update that coordinate as lines are added.
void	deleteRange (const Coordinates &start, const Coordinates &end)
	Delete the text between two coordinates.
void	deleteSelection ()
	Delete the current selection and update the cursor.
void	backspace ()
	Remove the character before the cursor or the current selection.
void	delete_ ()
	Remove the character after the cursor or the current selection.
bool	canUndo () const
	Report whether an earlier edit can be undone.
bool	canRedo () const
	Report whether a previously undone edit can be redone.
void	undo (int steps=1)
	Undo the requested number of edits.
void	redo (int steps=1)
	Redo the requested number of edits.
void	addUndo (UndoRecord &value)
	Append an edit to undo history and discard any redo tail.
void	setLanguageDefinition (const LanguageDefinition &langDef)
	Set the syntax rules and schedule the buffer for recoloring.
void	setSvgLanguageDefinition ()
	Use the built-in SVG syntax rules.
const LanguageDefinition &	getLanguageDefinition () const
	Return the active syntax language definition.
void	colorize (int fromLine=0, int count=-1)
	Schedule syntax coloring for a line range.
void	colorizeRange (int fromLine=0, int toLine=0)
	Recolor the half-open line range [fromLine, toLine).
void	colorizeInternal ()
	Process the pending syntax-coloring range.
bool	isColorizerEnabled () const
	Report whether syntax coloring is enabled.
void	setColorizerEnabled (bool enabled)
	Enable or disable syntax coloring.
void	setPalette (const Palette &value)
	Set the base color palette used by the text editor.
const Palette &	getPalette () const
	Return the configured base color palette.
void	setTabSize (int size)
	Set the number of columns represented by one tab, clamped to 0 through 32.
int	getTabSize () const
	Return the configured tab width in columns.
void	setInsertSpaces (bool value)
	Choose whether indentation inserts spaces rather than tabs.
bool	getInsertSpaces () const
	Report whether indentation inserts spaces.
void	setSmartIndent (bool value)
	Enable or disable context-sensitive indentation.
void	setAutoIndentOnPaste (bool value)
	Enable or disable indentation of pasted lines.
void	setCompleteBraces (bool value)
	Enable or disable automatic closing-brace insertion.
void	setActiveAutocomplete (bool value)
	Enable or disable active autocomplete requests.
void	setScrollbarMarkers (bool value)
	Show or hide changed-line markers in the scrollbar.
bool &	scrollbarMarkersRef ()
	Expose the scrollbar-marker flag to the rendering shell.
void	setErrorMarkers (const ErrorMarkers &markers)
	Replace the line-numbered diagnostic markers.
const ErrorMarkers &	getErrorMarkers () const
	Return the current line-numbered diagnostic markers.
ErrorMarkers &	mutableErrorMarkers ()
	Expose diagnostic markers for shell-side edits.
Coordinates	findWordStart (const Coordinates &from) const
	Find the start of the word containing or preceding a coordinate.
Coordinates	findWordEnd (const Coordinates &from) const
	Find the end of the word containing or following a coordinate.
Coordinates	findNextWord (const Coordinates &from) const
	Find the next word boundary after a coordinate.
bool	isOnWordBoundary (const Coordinates &at) const
	Report whether a coordinate lies on a word boundary.
RcString	getWordUnderCursor () const
	Return the word at the current cursor position.
RcString	getWordAt (const Coordinates &coords) const
	Return the word containing a coordinate.
Coordinates	findFirst (std::string_view searchText, const Coordinates &start) const
	Find the first whole-word match at or after a coordinate.
Coordinates	getActualCursorCoordinates () const
	Return the cursor clamped to the current buffer.
Coordinates	sanitizeCoordinates (const Coordinates &value) const
	Clamp a coordinate to an existing line and column.
void	advance (Coordinates &coordinates) const
	Advance a coordinate by one UTF-8 character, crossing lines as needed.
TextBuffer &	buffer ()
	Expose the editable buffer for shell-side mutation.
const TextBuffer &	buffer () const
	Return the editable buffer for shell-side rendering.
EditorState &	mutableState ()
	Expose cursor and selection state for shell-side mutation.
const EditorState &	state () const
	Return the current cursor and selection state.
const UndoBuffer &	undoBuffer () const
	Return the retained undo records in chronological order.
int	undoIndex () const
	Return the current position in the undo history.
std::vector< int > &	changedLines ()
	Expose changed-line markers for shell-side updates.
const std::vector< int > &	changedLines () const
	Return the changed-line markers used by the scrollbar.
std::vector< Coordinates > &	foldBegin ()
	Expose positions of opening fold markers.
const std::vector< Coordinates > &	foldBegin () const
	Return positions of opening fold markers.
std::vector< Coordinates > &	foldEnd ()
	Expose positions of closing fold markers.
const std::vector< Coordinates > &	foldEnd () const
	Return positions of closing fold markers.
bool &	foldSorted ()
	Expose whether the fold-marker arrays are sorted.
SelectionMode	selectionMode () const
	Return the current character, word, or line selection mode.
void	setSelectionMode (SelectionMode mode)
	Set how selection boundaries are expanded.
Coordinates &	interactiveStart ()
	Expose the raw interactive selection anchor.
Coordinates &	interactiveEnd ()
	Expose the raw interactive selection extent.
Palette &	mutablePalette ()
	Expose the active color palette to the rendering shell.
const Palette &	livePalette () const
	Return the active color palette used for glyphs.
Palette &	mutablePaletteBase ()
	Expose the configured base palette to the rendering shell.
bool	scrollToCursorRequested () const
	Report whether the shell should scroll the cursor into view.
void	clearScrollToCursor ()
	Clear a pending scroll-to-cursor request.
void	requestScrollToCursor ()
	Request that the shell scroll the cursor into view.
bool &	scrollToCursorRef ()
	Expose the scroll-to-cursor request flag to the shell.
bool	scrollToTopRequested () const
	Report whether the shell should scroll to the top.
void	clearScrollToTop ()
	Clear a pending scroll-to-top request.
bool &	scrollToTopRef ()
	Expose the scroll-to-top request flag to the shell.
bool	cursorPositionChanged () const
	Report whether the cursor moved since the last shell update.
void	setCursorPositionChanged (bool value)
	Set the cursor-position-change flag.
bool &	cursorPositionChangedRef ()
	Expose the cursor-position-change flag to the shell.
int	replaceIndex () const
	Return the active replacement index used by the text shell.
void	setReplaceIndex (int index)
	Set the replacement index used by the text shell.
int &	replaceIndexRef ()
	Expose the replacement index to the text shell.
int &	tabSizeRef ()
	Expose the configured tab width for shell-side editing.
SelectionMode &	selectionModeRef ()
	Expose the selection mode for shell-side editing.
bool &	textChangedRef ()
	Expose the text-change flag for shell-side editing.
bool &	autoIndentOnPasteRef ()
	Expose the paste-indentation setting for shell-side editing.
unsigned int	getGlyphColor (const Glyph &glyph) const
	Return the active palette color for a glyph and its comment state.
void	removeLine (int start, int end)
	Remove an inclusive range of lines and update error and changed-line markers.
void	removeLine (int index)
	Remove one line and update fold, marker, and change positions.
Line &	insertLine (int index, int column)
	Insert a blank line at index, or split the line at index when column is nonzero. Fold and error-marker positions are updated after insertion.
void	removeFolds (const Coordinates &start, const Coordinates &end)
	Remove fold markers in a coordinate range.
void	removeFolds (std::vector< Coordinates > &folds, const Coordinates &start, const Coordinates &end)
	Remove fold markers from one marker array in a coordinate range.
void	detectIndentationStyle ()
	Infer whether the current text is indented with tabs or spaces.
void	handleNewLine (UndoState &state, const Coordinates &coord, bool smartIndent)
	Insert a newline and record its undo state and indentation.
void	handleRegularCharacter (UndoState &state, const Coordinates &coord, char32_t character)
	Insert a regular character and update its undo state.
void	handleEndOfLineDelete (Coordinates pos, UndoRecord &undo)
	Delete the line break at the end of a line and record the edit.
void	handleMidLineDelete (Coordinates pos, UndoRecord &undo)
	Delete a character within a line and record the edit.
void	handleStartOfLineDelete (const Coordinates &pos, UndoRecord &undo)
	Delete at the start of a line and record the edit.
void	handleMidLineBackspace (const Coordinates &pos, UndoRecord &undo)
	Backspace within a line and record the edit.
void	recordSourceEditIntent (const UndoRecord &record, SourceEditIntentKind kind)
	Convert an undo record into a byte-level source edit intent.
void	appendSourceEditIntent (SourceEditIntent intent)
	Queue a nonempty, distinct source edit intent with a new version and notify the shell.
void	handleMultiLineTab (UndoState &state, bool shift)
	Indent or outdent selected lines and update the undo state.
void	updateChangeTracking ()
	Mark the cursor line changed when scrollbar markers are enabled.

Public Attributes
std::function< void()>	ensureCursorVisibleHook
	Ask the shell to scroll the current cursor into view.
std::function< void()>	requestAutocompleteHook
	Ask the shell to update autocomplete suggestions.
std::function< void(char32_t, const Coordinates &)>	functionTooltipHook
	Notify the shell of a character that may open a function tooltip.
std::function< void()>	onContentUpdateInternal
	Notify the shell that editable content changed.
std::function< void(const SourceEditIntent &)>	sourceEditIntentHook
	Notify the shell when a byte-level source edit intent is queued.

Detailed Description

Headless editing substrate - the text buffer, cursor, undo history and syntax colorizer with no ImGui dependency.

TextEditor wraps this class with ImGui rendering and input. Headless consumers can construct this core directly.

Member Typedef Documentation

◆ UndoBuffer

using donner::editor::TextEditorCore::UndoBuffer

Initial value:

std::vector<UndoRecord>

Chronological editing records retained for undo and redo.

Member Function Documentation

◆ addUndo()

void donner::editor::TextEditorCore::addUndo ( UndoRecord & value )

Append an edit to undo history and discard any redo tail.

Parameters

value Edit record to retain.

◆ advance()

void donner::editor::TextEditorCore::advance ( Coordinates & coordinates ) const

Advance a coordinate by one UTF-8 character, crossing lines as needed.

Parameters

coordinates Coordinate updated in place.

◆ appendSourceEditIntent()

void donner::editor::TextEditorCore::appendSourceEditIntent ( SourceEditIntent intent )

Queue a nonempty, distinct source edit intent with a new version and notify the shell.

Parameters

intent Source edit intent to queue.

◆ applyExternalSourceEdit()

void donner::editor::TextEditorCore::applyExternalSourceEdit	(	std::size_t	offset,
		std::size_t	removedLength,
		std::string_view	replacement )

Apply a source-view update that originated outside the text editor.

This mutates the visible buffer and recolorizes the affected region, but it does not append an undo record, does not create a pending SourceEditIntent, and leaves isTextChanged false. Existing text undo history is cleared, because its records address the previous text. Use this for XML-owned canvas writebacks that are being mirrored into the source pane.

Parameters

offset	Byte offset in the current buffer.
removedLength	Number of bytes to remove at `offset`.
replacement	Replacement bytes to insert at `offset`.

◆ colorize()

void donner::editor::TextEditorCore::colorize	(	int	fromLine = 0,
		int	count = -1 )

Schedule syntax coloring for a line range.

Parameters

fromLine	First line to recolor.
count	Number of lines, or -1 for the remainder.

◆ colorizeRange()

void donner::editor::TextEditorCore::colorizeRange	(	int	fromLine = 0,
		int	toLine = 0 )

Recolor the half-open line range [fromLine, toLine).

Parameters

fromLine	First line in the range.
toLine	First line after the range.

◆ deleteRange()

void donner::editor::TextEditorCore::deleteRange	(	const Coordinates &	start,
		const Coordinates &	end )

Delete the text between two coordinates.

Parameters

start	First coordinate to delete.
end	Coordinate after the deleted range.

◆ enterCharacter()

void donner::editor::TextEditorCore::enterCharacter	(	char32_t	character,
		bool	shift )

Insert one character at the cursor or replace the selection.

Parameters

character	Unicode scalar to insert.
shift	Whether Shift is held for indentation behavior.

◆ findFirst()

Coordinates donner::editor::TextEditorCore::findFirst	(	std::string_view	searchText,
		const Coordinates &	start ) const

Find the first whole-word match at or after a coordinate.

Parameters

searchText	Word to find.
start	Coordinate where the search begins.

Returns: Match location, or (total line count, 0) when none exists.

◆ findNextWord()

Coordinates donner::editor::TextEditorCore::findNextWord ( const Coordinates & from ) const

Find the next word boundary after a coordinate.

Parameters

from	Coordinate where the search begins.

◆ findWordEnd()

Coordinates donner::editor::TextEditorCore::findWordEnd ( const Coordinates & from ) const

Find the end of the word containing or following a coordinate.

Parameters

from	Coordinate used to locate the word.

◆ findWordStart()

Coordinates donner::editor::TextEditorCore::findWordStart ( const Coordinates & from ) const

Find the start of the word containing or preceding a coordinate.

Parameters

from	Coordinate used to locate the word.

◆ getCoordinatesAtByteOffset()

Coordinates donner::editor::TextEditorCore::getCoordinatesAtByteOffset ( std::size_t offset ) const

inline

Resolve a full-buffer byte offset to editor coordinates.

Parameters

offset Byte offset in getText().

◆ getGlyphColor()

unsigned int donner::editor::TextEditorCore::getGlyphColor ( const Glyph & glyph ) const

Return the active palette color for a glyph and its comment state.

Parameters

glyph Glyph whose syntax color is requested.

◆ getText()

std::string donner::editor::TextEditorCore::getText	(	const Coordinates &	start,
		const Coordinates &	end ) const

Return the text in the half-open coordinate range.

Parameters

start	First coordinate to read.
end	Coordinate after the last character to read.

◆ getWordAt()

RcString donner::editor::TextEditorCore::getWordAt ( const Coordinates & coords ) const

Return the word containing a coordinate.

Parameters

coords Coordinate within the word.

◆ handleEndOfLineDelete()

void donner::editor::TextEditorCore::handleEndOfLineDelete	(	Coordinates	pos,
		UndoRecord &	undo )

Delete the line break at the end of a line and record the edit.

Parameters

pos	Deletion coordinate.
undo	Undo record updated with the removed text.

◆ handleMidLineBackspace()

void donner::editor::TextEditorCore::handleMidLineBackspace	(	const Coordinates &	pos,
		UndoRecord &	undo )

Backspace within a line and record the edit.

Parameters

pos	Cursor coordinate.
undo	Undo record updated with the removed text.

◆ handleMidLineDelete()

void donner::editor::TextEditorCore::handleMidLineDelete	(	Coordinates	pos,
		UndoRecord &	undo )

Delete a character within a line and record the edit.

Parameters

pos	Deletion coordinate.
undo	Undo record updated with the removed text.

◆ handleMultiLineTab()

void donner::editor::TextEditorCore::handleMultiLineTab	(	UndoState &	state,
		bool	shift )

Indent or outdent selected lines and update the undo state.

Parameters

state	Undo state accumulated for the operation.
shift	True to outdent instead of indenting.

◆ handleNewLine()

void donner::editor::TextEditorCore::handleNewLine	(	UndoState &	state,
		const Coordinates &	coord,
		bool	smartIndent )

Insert a newline and record its undo state and indentation.

Parameters

state	Undo state accumulated for this insertion.
coord	Insertion coordinate.
smartIndent	Whether context-sensitive indentation is enabled.

◆ handleRegularCharacter()

void donner::editor::TextEditorCore::handleRegularCharacter	(	UndoState &	state,
		const Coordinates &	coord,
		char32_t	character )

Insert a regular character and update its undo state.

Parameters

state	Undo state accumulated for this insertion.
coord	Insertion coordinate.
character	Character to insert.

◆ handleStartOfLineDelete()

void donner::editor::TextEditorCore::handleStartOfLineDelete	(	const Coordinates &	pos,
		UndoRecord &	undo )

Delete at the start of a line and record the edit.

Parameters

pos	Deletion coordinate.
undo	Undo record updated with the removed text.

◆ insertLine()

Line & donner::editor::TextEditorCore::insertLine	(	int	index,
		int	column )

Insert a blank line at index, or split the line at index when column is nonzero. Fold and error-marker positions are updated after insertion.

Parameters

index	Blank-line insertion index, or existing line to split.
column	Split column when index names an existing line; otherwise insert a blank line.

Returns: Inserted blank line at index, or split suffix at index + 1.

◆ insertText()

void donner::editor::TextEditorCore::insertText	(	std::string_view	text,
		bool	indent = false )

Insert text at the cursor, optionally applying indentation.

Parameters

text	Text to insert.
indent	Whether to apply indentation to inserted lines.

◆ insertTextAt()

int donner::editor::TextEditorCore::insertTextAt	(	Coordinates &	where,
		std::string_view	text,
		bool	indent = false )

Insert text at a coordinate and update that coordinate as lines are added.

Parameters

where	Insertion point, updated to the end of the inserted text.
text	Text to insert.
indent	Whether to apply indentation to inserted lines.

◆ isOnWordBoundary()

bool donner::editor::TextEditorCore::isOnWordBoundary ( const Coordinates & at ) const

Report whether a coordinate lies on a word boundary.

Parameters

at	Coordinate to inspect.

◆ moveBottom()

void donner::editor::TextEditorCore::moveBottom ( bool select = false )

Move the cursor to the end of the final line.

Parameters

select Whether to extend the selection.

◆ moveCursorTo()

void donner::editor::TextEditorCore::moveCursorTo	(	const Coordinates &	position,
		bool	select )

Move the cursor to position. With select the selection extends from its anchor, the end the cursor did not occupy; otherwise it collapses to the cursor.

Parameters

position	New cursor position.
select	Whether to extend the selection.

◆ moveDown()

void donner::editor::TextEditorCore::moveDown	(	int	amount = 1,
		bool	select = false )

Move the cursor down by logical lines.

Parameters

amount	Number of lines to move.
select	Whether to extend the selection.

◆ moveEnd()

void donner::editor::TextEditorCore::moveEnd ( bool select = false )

Move the cursor to the end of its current line.

Parameters

select Whether to extend the selection.

◆ moveHome()

void donner::editor::TextEditorCore::moveHome ( bool select = false )

Move the cursor to the start of its current line.

Parameters

select Whether to extend the selection.

◆ moveLeft()

void donner::editor::TextEditorCore::moveLeft	(	int	amount = 1,
		bool	select = false,
		bool	wordMode = false )

Move the cursor left by characters or words.

Parameters

amount	Number of steps to move.
select	Whether to extend the selection.
wordMode	Whether each step moves to the start of the current or previous word, continuing onto earlier lines.

◆ moveRight()

void donner::editor::TextEditorCore::moveRight	(	int	amount = 1,
		bool	select = false,
		bool	wordMode = false )

Move the cursor right by characters or words.

Parameters

amount	Number of steps to move.
select	Whether to extend the selection.
wordMode	Whether each step moves to the end of the current or next word, continuing onto later lines.

◆ moveTop()

void donner::editor::TextEditorCore::moveTop ( bool select = false )

Move the cursor to the start of the buffer.

Parameters

select Whether to extend the selection.

◆ moveUp()

void donner::editor::TextEditorCore::moveUp	(	int	amount = 1,
		bool	select = false )

Move the cursor up by logical lines.

Parameters

amount	Number of lines to move.
select	Whether to extend the selection.

◆ recordSourceEditIntent()

void donner::editor::TextEditorCore::recordSourceEditIntent	(	const UndoRecord &	record,
		SourceEditIntentKind	kind )

Convert an undo record into a byte-level source edit intent.

Parameters

record	Edit whose text and bounds are translated.
kind	Whether the source intent applies or reverses the edit.

◆ redo()

void donner::editor::TextEditorCore::redo ( int steps = 1 )

Redo the requested number of edits.

Parameters

steps Maximum number of edits to redo.

◆ removeFolds() [1/2]

void donner::editor::TextEditorCore::removeFolds	(	const Coordinates &	start,
		const Coordinates &	end )

Remove fold markers in a coordinate range.

Parameters

start	First coordinate in the range.
end	Last coordinate in the range.

◆ removeFolds() [2/2]

void donner::editor::TextEditorCore::removeFolds	(	std::vector< Coordinates > &	folds,
		const Coordinates &	start,
		const Coordinates &	end )

Remove fold markers from one marker array in a coordinate range.

Parameters

folds	Marker array to update.
start	First coordinate in the range.
end	Last coordinate in the range.

◆ removeLine() [1/2]

void donner::editor::TextEditorCore::removeLine ( int index )

Remove one line and update fold, marker, and change positions.

Parameters

index Line to remove.

◆ removeLine() [2/2]

void donner::editor::TextEditorCore::removeLine	(	int	start,
		int	end )

Remove an inclusive range of lines and update error and changed-line markers.

Parameters

start	First line to remove.
end	Last line to remove.

void donner::editor::TextEditorCore::setCursorPosition ( const Coordinates & position )

Store a requested cursor position; reads clamp it to the current buffer.

Parameters

position Requested cursor position.

◆ setCursorPositionChanged()

void donner::editor::TextEditorCore::setCursorPositionChanged ( bool value )

inline

Set the cursor-position-change flag.

Parameters

value Whether the cursor has moved.

◆ setErrorMarkers()

void donner::editor::TextEditorCore::setErrorMarkers ( const ErrorMarkers & markers )

inline

Replace the line-numbered diagnostic markers.

Parameters

markers Markers to display.

◆ setInsertSpaces()

void donner::editor::TextEditorCore::setInsertSpaces ( bool value )

inline

Choose whether indentation inserts spaces rather than tabs.

Parameters

value True to insert spaces.

void donner::editor::TextEditorCore::setSelection	(	const Coordinates &	start,
		const Coordinates &	end,
		SelectionMode	mode = SelectionMode::Normal )

Select between two endpoints, storing ordered bounds and expanding words or lines.

Parameters

start	First requested endpoint.
end	Second requested endpoint.
mode	Boundary expansion mode.

◆ setSelectionEnd()

void donner::editor::TextEditorCore::setSelectionEnd ( const Coordinates & position )

Replace the ordered upper selection bound, swapping bounds if needed.

Parameters

position Requested upper bound.

◆ setSelectionMode()

void donner::editor::TextEditorCore::setSelectionMode ( SelectionMode mode )

inline

Set how selection boundaries are expanded.

Parameters

mode	Selection mode to use.

◆ setSelectionStart()

void donner::editor::TextEditorCore::setSelectionStart ( const Coordinates & position )

Replace the ordered lower selection bound, swapping bounds if needed.

Parameters

position Requested lower bound.

◆ setSmartIndent()

void donner::editor::TextEditorCore::setSmartIndent ( bool value )

inline

Enable or disable context-sensitive indentation.

Parameters

value Whether smart indentation is active.

◆ setTabSize()

void donner::editor::TextEditorCore::setTabSize ( int size )

Set the number of columns represented by one tab, clamped to 0 through 32.

Parameters

size	Requested tab width.

◆ undo()

void donner::editor::TextEditorCore::undo ( int steps = 1 )

Undo the requested number of edits.

Parameters

steps Maximum number of edits to undo.

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

donner/editor/TextEditorCore.h

Public Types

Public Member Functions

Public Attributes

Detailed Description

Member Typedef Documentation

◆ UndoBuffer

Member Function Documentation

◆ addUndo()

◆ advance()

◆ appendSourceEditIntent()

◆ applyExternalSourceEdit()

◆ colorize()

◆ colorizeRange()

◆ deleteRange()

◆ enterCharacter()

◆ findFirst()

◆ findNextWord()

◆ findWordEnd()

◆ findWordStart()

◆ getCoordinatesAtByteOffset()

◆ getGlyphColor()

◆ getText()

◆ getWordAt()

◆ handleEndOfLineDelete()

◆ handleMidLineBackspace()

◆ handleMidLineDelete()

◆ handleMultiLineTab()

◆ handleNewLine()

◆ handleRegularCharacter()

◆ handleStartOfLineDelete()

◆ insertLine()

◆ insertText()

◆ insertTextAt()

◆ isOnWordBoundary()

◆ moveBottom()

◆ moveCursorTo()

◆ moveDown()

◆ moveEnd()

◆ moveHome()

◆ moveLeft()

◆ moveRight()

◆ moveTop()

◆ moveUp()

◆ recordSourceEditIntent()

◆ redo()

◆ removeFolds() [1/2]

◆ removeFolds() [2/2]

◆ removeLine() [1/2]

◆ removeLine() [2/2]

◆ sanitizeCoordinates()

◆ setActiveAutocomplete()

◆ setAutoIndentOnPaste()

◆ setColorizerEnabled()

◆ setCompleteBraces()

◆ setCursorPosition()

◆ setCursorPositionChanged()

◆ setErrorMarkers()

◆ setInsertSpaces()

◆ setLanguageDefinition()

◆ setPalette()

◆ setReplaceIndex()

◆ setScrollbarMarkers()

◆ setSelection()

◆ setSelectionEnd()

◆ setSelectionMode()

◆ setSelectionStart()

◆ setSmartIndent()

◆ setTabSize()

◆ undo()