promeki::TuiPainter Class Reference

Painting context for TUI widgets. More...

#include <painter.h>

Public Member Functions
	TuiPainter (TuiScreen &screen, const Rect2Di32 &clipRect)
	Constructs a TuiPainter.
void	drawChar (int x, int y, char32_t ch)
	Draws a single character at the given position.
void	drawText (int x, int y, const String &text)
	Draws horizontal text at the given position.
void	drawRect (const Rect2Di32 &rect, char32_t ch=0)
	Draws a rectangle outline using the given character.
void	fillRect (const Rect2Di32 &rect, char32_t ch=U' ')
	Fills a rectangle with the given character.
void	drawHLine (int x, int y, int len, char32_t ch=U'\u2500')
	Draws a horizontal line.
void	drawVLine (int x, int y, int len, char32_t ch=U'\u2502')
	Draws a vertical line.
void	setForeground (const Color &color)
	Sets the current foreground color.
void	setBackground (const Color &color)
	Sets the current background color.
void	setAttrs (uint8_t attrs)
	Sets the current attribute flags.
void	setStyle (const TuiStyle &style)
	Sets all visual properties from a TuiStyle.
Color	foreground () const
	Returns the current foreground color.
Color	background () const
	Returns the current background color.
uint8_t	attrs () const
	Returns the current attribute flags.
const TuiStyle &	style () const
	Returns the current style.
void	setClipRect (const Rect2Di32 &rect)
	Sets the clipping rectangle.
const Rect2Di32 &	clipRect () const
	Returns the current clipping rectangle.

Detailed Description

Painting context for TUI widgets.

Draws to a TuiScreen within a clipped region corresponding to the widget's visible area. Coordinates are relative to the clip region origin (the widget's top-left corner in screen coordinates).

Thread Safety

Conditionally thread-safe. Distinct instances may be used concurrently; concurrent access to a single instance — including any combination of draw calls — must be externally synchronized. In typical TUI use a TuiPainter is short-lived and used only on the TUI thread for the duration of a single paint event.

Constructor & Destructor Documentation

TuiPainter()

promeki::TuiPainter::TuiPainter	(	TuiScreen &	screen,
		const Rect2Di32 &	clipRect
	)

Constructs a TuiPainter.

Parameters

screen	The screen to draw to.
clipRect	The clipping rectangle in screen coordinates.

Member Function Documentation

drawRect()

void promeki::TuiPainter::drawRect	(	const Rect2Di32 &	rect,
		char32_t	ch = 0
	)

Draws a rectangle outline using the given character.

If ch is 0, uses Unicode box-drawing characters.

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

• include/promeki/tui/painter.h