CEGUI::RenderedString Class Reference

Class representing a rendered string of entities. More...

Inheritance diagram for CEGUI::RenderedString:

Collaboration diagram for CEGUI::RenderedString:

Public Member Functions
	RenderedString ()
	Constructor.
virtual	~RenderedString ()
	Destructor.
void	draw (const Window *ref_wnd, const size_t line, GeometryBuffer &buffer, const Vector2f &position, const ColourRect *mod_colours, const Rectf *clip_rect, const float space_extra) const
	Draw the string to a GeometryBuffer. More...
Sizef	getPixelSize (const Window *ref_wnd, const size_t line) const
	Return the pixel size of a specified line for the RenderedString. More...
float	getHorizontalExtent (const Window *ref_wnd) const
	Return the maximum horizontal extent of all lines, in pixels.
float	getVerticalExtent (const Window *ref_wnd) const
	Return the sum vertical extent of all lines, in pixels.
void	appendComponent (const RenderedStringComponent &component)
	append component to the list of components drawn for this string.
void	clearComponents ()
	clear the list of components drawn for this string.
size_t	getComponentCount () const
	return the number of components that make up this string.
void	split (const Window *ref_wnd, const size_t line, float split_point, RenderedString &left)
	split the string in line line as close to split_point as possible. More...
size_t	getSpaceCount (const size_t line) const
	return the total number of spacing characters in the specified line.
void	appendLineBreak ()
	linebreak the rendered string at the present position.
size_t	getLineCount () const
	return number of lines in this string.
void	setSelection (const Window *ref_wnd, float start, float end)
	set selection highlight
	RenderedString (const RenderedString &other)
	Copy constructor.
RenderedString &	operator= (const RenderedString &rhs)
	Assignment.

Protected Types
typedef std::vector < RenderedStringComponent *CEGUI_VECTOR_ALLOC(RenderedStringComponent *)>	ComponentList
	Collection type used to hold the string components.
typedef std::pair< size_t, size_t >	LineInfo
	track info for a line. first is componetn idx, second is component count.
typedef std::vector< LineInfo CEGUI_VECTOR_ALLOC(LineInfo)>	LineList
	Collection type used to hold details about the lines.

Protected Member Functions
void	cloneComponentList (const ComponentList &list)
	Make this object's component list a clone of list.

Static Protected Member Functions
static void	clearComponentList (ComponentList &list)
	Free components in the given ComponentList and clear the list.

Protected Attributes
ComponentList	d_components
	RenderedStringComponent objects that comprise this RenderedString.
LineList	d_lines
	lines that make up this string.

Detailed Description

Class representing a rendered string of entities.

Here 'string' does not refer solely to a text string, rather a string of any renderable items.

Member Function Documentation

void CEGUI::RenderedString::draw	(	const Window *	ref_wnd,
		const size_t	line,
		GeometryBuffer &	buffer,
		const Vector2f &	position,
		const ColourRect *	mod_colours,
		const Rectf *	clip_rect,
		const float	space_extra
	)		const

Draw the string to a GeometryBuffer.

Parameters

line	The line of the RenderedString to draw.
buffer	GeometryBuffer object that is to receive the geometry resulting from the draw operations.
position	Vector2 describing the position where the RenderedString is to be drawn. Note that this is not the final onscreen position, but the position as offset from the top-left corner of the entity represented by the GeometryBuffer.
mod_colours	Pointer to a ColourRect describing colour values that are to be modulated with the any stored colour values to calculate the final colour values to be used. This may be 0 if no modulated colours are required. NB: Each specific component will decide if and how it will apply the modulated colours.
clip_rect	Pointer to a Rect object that describes a clipping rectangle that should be used when drawing the RenderedString. This may be 0 if no clipping is required.
space_extra	float value indicating additional padding value to be applied to space characters in the string.

Exceptions

InvalidRequestException

thrown if line is out of range.

Sizef CEGUI::RenderedString::getPixelSize	(	const Window *	ref_wnd,
		const size_t	line
	)		const

Return the pixel size of a specified line for the RenderedString.

Parameters

line	The line number whose size is to be returned.

Returns

Size object describing the size of the rendered output of the specified line of this RenderedString, in pixels.

Exceptions

InvalidRequestException

thrown if line is out of range.

void CEGUI::RenderedString::split	(	const Window *	ref_wnd,
		const size_t	line,
		float	split_point,
		RenderedString &	left
	)

split the string in line line as close to split_point as possible.

The RenderedString \a left will receive the left portion of the split,
while the right portion of the split will remain in this RenderedString.

Parameters

line	The line number on which the split is to occur.
split_point	float value specifying the pixel location where the split should occur. The actual split will occur as close to this point as possible, though preferring a shorter 'left' portion when the split can not be made exactly at the requested point.
left	RenderedString object that will receieve the left portion of the split. Any existing content in the RenderedString is replaced.

Exceptions

InvalidRequestException

thrown if line is out of range.