This is an internal class for Fl_Text_Buffer to manage text selections. This class works correctly with utf-8 strings assuming that the parameters for all calls are on character boundaries. More...

#include <Fl_Text_Buffer.H>

Public Member Functions
void	set (int start, int end)
	Set the selection range.
void	update (int pos, int nDeleted, int nInserted)
	Updates a selection afer text was modified. Updates an individual selection for changes in the corresponding text.
int	start () const
	Return the byte offset to the first selected character.
int	end () const
	Return the byte ofsset to the character after the last selected character.
bool	selected () const
	Returns true if any text is selected.
void	selected (bool b)
	Modify the 'selected' flag.
int	includes (int pos) const
int	position (int start, int end) const
	Return the positions of this selection.
Protected Attributes
int	mStart
	byte offset to the first selected character
int	mEnd
	byte offset to the character after the last selected character
bool	mSelected
	this flag is set if any text is selected
Friends
class	Fl_Text_Buffer

Detailed Description

This is an internal class for Fl_Text_Buffer to manage text selections. This class works correctly with utf-8 strings assuming that the parameters for all calls are on character boundaries.

Definition at line 80 of file Fl_Text_Buffer.H.

Member Function Documentation

int Fl_Text_Selection::end ( ) const [inline]

Return the byte ofsset to the character after the last selected character.

Returns:: byte offset

Definition at line 111 of file Fl_Text_Buffer.H.

Referenced by Fl_Text_Display::extend_range_for_styles(), and includes().

int Fl_Text_Selection::includes ( int pos ) const

Return true if position pos with indentation dispIndex is in the Fl_Text_Selection.

Definition at line 1245 of file Fl_Text_Buffer.cxx.

References end(), selected(), and start().

Referenced by Fl_Text_Display::in_selection(), and Fl_Text_Display::position_style().

int Fl_Text_Selection::position	(	int *	start,
		int *	end
	)		const

Return the positions of this selection.

Parameters:

start	retrun byte offset to first selected character
end	retrun byte offset pointing after last selected character

Returns:: true if selected

Definition at line 1231 of file Fl_Text_Buffer.cxx.

References mEnd, mSelected, and mStart.

Referenced by Fl_Text_Buffer::highlight_position(), Fl_Text_Buffer::remove_selection_(), Fl_Text_Buffer::replace_selection_(), Fl_Text_Buffer::secondary_selection_position(), Fl_Text_Buffer::selection_position(), and Fl_Text_Buffer::selection_text_().

bool Fl_Text_Selection::selected ( ) const [inline]

Returns true if any text is selected.

Returns:: a non-zero number if any text has been selected, or 0 if no text is selected.

Definition at line 118 of file Fl_Text_Buffer.H.

Referenced by Fl_Text_Display::buffer_modified_cb(), Fl_Text_Display::extend_range_for_styles(), and includes().

void Fl_Text_Selection::selected ( bool b ) [inline]

Modify the 'selected' flag.

Parameters:

b new flag

Definition at line 124 of file Fl_Text_Buffer.H.

References b.

void Fl_Text_Selection::set	(	int	start,
		int	end
	)

Set the selection range.

Parameters:

start	byte offset to first selected character
end	byte offset pointing after last selected character

Definition at line 1219 of file Fl_Text_Buffer.cxx.

References mEnd, min, mSelected, and mStart.

Referenced by Fl_Text_Buffer::highlight(), Fl_Text_Buffer::secondary_select(), and Fl_Text_Buffer::select().

int Fl_Text_Selection::start ( ) const [inline]

Return the byte offset to the first selected character.

Returns:: byte offset

Definition at line 105 of file Fl_Text_Buffer.H.

Referenced by Fl_Text_Display::extend_range_for_styles(), and includes().

void Fl_Text_Selection::update	(	int	pos,
		int	nDeleted,
		int	nInserted
	)

Updates a selection afer text was modified. Updates an individual selection for changes in the corresponding text.

Parameters:

pos	byte offset into text buffer at which the change occured
nDeleted	number of bytes deleted from the buffer
nInserted	number of bytes inserted into the buffer

Definition at line 1449 of file Fl_Text_Buffer.cxx.

References mEnd, mSelected, and mStart.

Referenced by Fl_Text_Buffer::update_selections().