LineEditRenderer Class Reference

#include <Pt/Forms/LineEditStyler.h>

Renders the look of a line edit. More...

Inherits Renderer.

Public Member Functions
	LineEditRenderer (std::size_t refs=0)
	Constructs a renderer with reference count refs.
virtual	~LineEditRenderer ()
	Destroys the renderer.
LineEditRenderer *	create () const
	Creates a new default-constructed instance that the caller owns.
Gfx::SizeF	measureFrame (PaintSurface &surface, const Gfx::SizeF &contentSize)
	Returns the outer size including the frame for contentSize.
Gfx::RectF	layoutFrame (PaintSurface &surface, const Gfx::RectF &rect)
	Returns the content rectangle within rect.
const Painter &	textPainter (PaintSurface &surface)
	Returns a painter with the current font and text color.
void	renderChrome (PaintContext &context, const Gfx::RectF &rect, const Gfx::RectF &textRect, const String &text, const Gfx::PointF &textPos, const Gfx::RectF &cursor, const Gfx::RectF &selection, const LineEditState &state)
	Paints entry, selection, text, and caret for state.
void	renderEntry (PaintContext &context, const Gfx::RectF &rect, const LineEditState &state)
	Paints the entry for state.
void	renderSelection (PaintContext &context, const Gfx::RectF &textRect, const Gfx::RectF &selection, const LineEditState &state)
	Paints the selection for state.
void	renderText (PaintContext &context, const Gfx::RectF &textRect, const String &text, const Gfx::PointF &textPos, const LineEditState &state)
	Paints text at textPos for state.
void	renderCursor (PaintContext &context, const Gfx::RectF &textRect, const Gfx::RectF &cursor, const LineEditState &state)
	Paints the caret for state.
const std::type_info &	typeId () const
	Returns the dynamic type used as the registry key.
void	ref ()
	Adds one reference.
std::size_t	unref ()
	Removes one reference and returns the remaining count.
void	reset (const StyleOptions &options)
	Resets this facet with options.

Protected Member Functions
virtual LineEditRenderer *	onCreate () const =0
	Creates a new instance of the same concrete type.
virtual void	onReset (const StyleOptions &options)=0
	Resets this facet with options.
virtual Gfx::SizeF	onMeasureFrame (PaintSurface &surface, const Gfx::SizeF &contentSize)=0
	Measures the frame enclosing contentSize.
virtual Gfx::RectF	onLayoutFrame (PaintSurface &surface, const Gfx::RectF &rect)=0
	Returns the content rectangle within rect.
virtual const Painter &	onGetTextPainter (PaintSurface &surface)=0
	Returns a painter with the current font and text color.
virtual void	onRenderChrome (PaintContext &context, const Gfx::RectF &rect, const Gfx::RectF &textRect, const String &text, const Gfx::PointF &textPos, const Gfx::RectF &cursor, const Gfx::RectF &selection, const LineEditState &state)
	Paints entry, selection, text, and caret for state.
virtual void	onRenderEntry (PaintContext &context, const Gfx::RectF &rect, const LineEditState &state)=0
	Paints the entry for state.
virtual void	onRenderSelection (PaintContext &context, const Gfx::RectF &textRect, const Gfx::RectF &selection, const LineEditState &state)=0
	Paints the selection for state.
virtual void	onRenderText (PaintContext &context, const Gfx::RectF &textRect, const String &text, const Gfx::PointF &textPos, const LineEditState &state)=0
	Paints text at textPos for state.
virtual void	onRenderCursor (PaintContext &context, const Gfx::RectF &textRect, const Gfx::RectF &cursor, const LineEditState &state)=0
	Paints the caret for state.

Detailed Description

A LineEditRenderer is a Style::Facet for the line-edit family. Named measure methods run inside-out. Named layout methods run outside-in. Named render methods paint prepared rectangles. The widget owns geometry and orchestrates those passes. The renderer does not mutate widget geometry.

Derive a renderer to change the look of line edits. Register it on a Style, or assign it to a widget with LineEdit::setRenderer().

Member Function Documentation

onReset()

virtual void onReset ( const StyleOptions & options )

protectedpure virtual

Resolves tokens from options and stores the painter and metric state used later by measure, layout, and render. Shared facets are reset when the application applies global options.

Reimplemented from Style::Facet.