A class for storing and manipulating a source code file. More...

Classes
class	Iterator
	Iterates the text in a CodeDocument. More...

class	Listener
	An object that receives callbacks from the CodeDocument when its text changes. More...

class	Position
	A position in a code document. More...

Public Member Functions
	CodeDocument ()
	Creates a new, empty document. More...

	~CodeDocument ()
	Destructor. More...

String	getAllContent () const
	Returns the full text of the document. More...

String	getTextBetween (const Position &start, const Position &end) const
	Returns a section of the document's text. More...

String	getLine (int lineIndex) const noexcept
	Returns a line from the document. More...

int	getNumCharacters () const noexcept
	Returns the number of characters in the document. More...

int	getNumLines () const noexcept
	Returns the number of lines in the document. More...

int	getMaximumLineLength () noexcept
	Returns the number of characters in the longest line of the document. More...

void	deleteSection (const Position &startPosition, const Position &endPosition)
	Deletes a section of the text. More...

void	deleteSection (int startIndex, int endIndex)
	Deletes a section of the text. More...

void	insertText (const Position &position, const String &text)
	Inserts some text into the document at a given position. More...

void	insertText (int insertIndex, const String &text)
	Inserts some text into the document at a given position. More...

void	replaceSection (int startIndex, int endIndex, const String &newText)
	Replaces a section of the text with a new string. More...

void	replaceAllContent (const String &newContent)
	Clears the document and replaces it with some new text. More...

void	applyChanges (const String &newContent)
	Analyses the changes between the current content and some new text, and applies those changes. More...

bool	loadFromStream (InputStream &stream)
	Replaces the editor's contents with the contents of a stream. More...

bool	writeToStream (OutputStream &stream)
	Writes the editor's current contents to a stream. More...

String	getNewLineCharacters () const noexcept
	Returns the preferred new-line characters for the document. More...

void	setNewLineCharacters (const String &newLineCharacters) noexcept
	Sets the new-line characters that the document should use. More...

void	newTransaction ()
	Begins a new undo transaction. More...

void	undo ()
	Undo the last operation. More...

void	redo ()
	Redo the last operation. More...

void	clearUndoHistory ()
	Clears the undo history. More...

UndoManager &	getUndoManager () noexcept
	Returns the document's UndoManager. More...

void	setSavePoint () noexcept
	Makes a note that the document's current state matches the one that is saved. More...

bool	hasChangedSinceSavePoint () const noexcept
	Returns true if the state of the document differs from the state it was in when setSavePoint() was last called. More...

Position	findWordBreakAfter (const Position &position) const noexcept
	Searches for a word-break. More...

Position	findWordBreakBefore (const Position &position) const noexcept
	Searches for a word-break. More...

void	findTokenContaining (const Position &pos, Position &start, Position &end) const noexcept
	Finds the token that contains the given position. More...

void	findLineContaining (const Position &pos, Position &start, Position &end) const noexcept
	Finds the line that contains the given position. More...

void	addListener (Listener *listener)
	Registers a listener object to receive callbacks when the document changes. More...

void	removeListener (Listener *listener)
	Deregisters a listener. More...

Detailed Description

A class for storing and manipulating a source code file.

When using a CodeEditorComponent, it takes one of these as its source object.

The CodeDocument stores its content as an array of lines, which makes it quick to insert and delete.

See also: CodeEditorComponent

Constructor & Destructor Documentation

◆ CodeDocument()

CodeDocument::CodeDocument ( )

Creates a new, empty document.

◆ ~CodeDocument()

CodeDocument::~CodeDocument ( )

Destructor.

Member Function Documentation

◆ getAllContent()

String CodeDocument::getAllContent ( ) const

Returns the full text of the document.

◆ getTextBetween()

String CodeDocument::getTextBetween	(	const Position &	start,
		const Position &	end
	)		const

Returns a section of the document's text.

◆ getLine()

String CodeDocument::getLine ( int lineIndex ) const

noexcept

Returns a line from the document.

◆ getNumCharacters()

int CodeDocument::getNumCharacters ( ) const

noexcept

Returns the number of characters in the document.

◆ getNumLines()

int CodeDocument::getNumLines ( ) const

noexcept

Returns the number of lines in the document.

References deleteSection(), getMaximumLineLength(), and insertText().

◆ getMaximumLineLength()

int CodeDocument::getMaximumLineLength ( )

noexcept

Returns the number of characters in the longest line of the document.

Referenced by getNumLines().

◆ deleteSection() [1/2]

void CodeDocument::deleteSection	(	const Position &	startPosition,
		const Position &	endPosition
	)

Deletes a section of the text.

This operation is undoable.

Referenced by getNumLines().

◆ deleteSection() [2/2]

void CodeDocument::deleteSection	(	int	startIndex,
		int	endIndex
	)

Deletes a section of the text.

This operation is undoable.

◆ insertText() [1/2]

void CodeDocument::insertText	(	const Position &	position,
		const String &	text
	)

Inserts some text into the document at a given position.

This operation is undoable.

Referenced by getNumLines().

◆ insertText() [2/2]

void CodeDocument::insertText	(	int	insertIndex,
		const String &	text
	)

Inserts some text into the document at a given position.

This operation is undoable.

◆ replaceSection()

void CodeDocument::replaceSection	(	int	startIndex,
		int	endIndex,
		const String &	newText
	)

Replaces a section of the text with a new string.

This operation is undoable.

◆ replaceAllContent()

void CodeDocument::replaceAllContent ( const String & newContent )

Clears the document and replaces it with some new text.

This operation is undoable - if you're trying to completely reset the document, you might want to also call clearUndoHistory() and setSavePoint() after using this method.

◆ applyChanges()

void CodeDocument::applyChanges ( const String & newContent )

Analyses the changes between the current content and some new text, and applies those changes.

◆ loadFromStream()

bool CodeDocument::loadFromStream ( InputStream & stream )

Replaces the editor's contents with the contents of a stream.

This will also reset the undo history and save point marker.

◆ writeToStream()

bool CodeDocument::writeToStream ( OutputStream & stream )

Writes the editor's current contents to a stream.

◆ getNewLineCharacters()

String CodeDocument::getNewLineCharacters ( ) const

noexcept

Returns the preferred new-line characters for the document.

This will be either "\\n", "\\r\\n", or (rarely) "\\r".

See also: setNewLineCharacters

References clearUndoHistory(), newTransaction(), StandardApplicationCommandIDs::redo, setNewLineCharacters(), and StandardApplicationCommandIDs::undo.

◆ setNewLineCharacters()

void CodeDocument::setNewLineCharacters ( const String & newLineCharacters )

noexcept

Sets the new-line characters that the document should use.

The string must be either "\\n", "\\r\\n", or (rarely) "\\r".

See also: getNewLineCharacters

Referenced by getNewLineCharacters().

◆ newTransaction()

void CodeDocument::newTransaction ( )

Begins a new undo transaction.

The document itself will not call this internally, so relies on whatever is using the document to periodically call this to break up the undo sequence into sensible chunks.

See also: UndoManager::beginNewTransaction

Referenced by getNewLineCharacters().

◆ undo()

void CodeDocument::undo ( )

Undo the last operation.

See also: UndoManager::undo

◆ redo()

void CodeDocument::redo ( )

Redo the last operation.

See also: UndoManager::redo

◆ clearUndoHistory()

void CodeDocument::clearUndoHistory ( )

Clears the undo history.

See also: UndoManager::clearUndoHistory

Referenced by getNewLineCharacters().

◆ getUndoManager()

UndoManager& CodeDocument::getUndoManager ( )

noexcept

Returns the document's UndoManager.

References findLineContaining(), findTokenContaining(), findWordBreakAfter(), findWordBreakBefore(), hasChangedSinceSavePoint(), and setSavePoint().

◆ setSavePoint()

void CodeDocument::setSavePoint ( )

noexcept

Makes a note that the document's current state matches the one that is saved.

After this has been called, hasChangedSinceSavePoint() will return false until the document has been altered, and then it'll start returning true. If the document is altered, but then undone until it gets back to this state, hasChangedSinceSavePoint() will again return false.