RenderGroup Class Reference

Group of bitmaps that are rendered into the same X-window. More...

#include <openglthread.h>

Public Member Functions
	RenderGroup (Display *display_id, const GLXContext &glc, Window window_id, Window child_id, bool doublebuffer_flag=true)
	Default constructor. More...
	~RenderGroup ()
	Default destructor.
Window	getWindowId () const
const std::list< RenderContext * > &	getRenderContexes () const
std::list< RenderContext * >::iterator	getContext (int id)
	Returns iterator at matched render context id.
bool	addContext (RenderContext *render_context)
	Add RenderContext to RenderGroup::render_contexes (with checking) More...
RenderContext *	delContext (int id)
	Remove RenderContext from RenderGroup::render_contexes (with checking)
bool	isEmpty ()
	Checks if there are any render contexes in the render_contexes list.
void	render ()
	Render everything in this group (i.e. More...

Public Attributes
Display *	display_id
	X display id.
const GLXContext &	glc
	GLX Context.
Window	window_id
	X window id: render group id.
Window	child_id
	X window id: rendering target.
bool	doublebuffer_flag
	Double buffer rendering or not?
std::list< RenderContext * >	render_contexes
	RenderContext instances in ascending z order. User created rendercontexes are warehoused here.
XWindowAttributes	x_window_attr
	X window attributes.

Detailed Description

Group of bitmaps that are rendered into the same X-window.

A RenderGroup instance is indentified uniquely by an x-window id.

Constructor & Destructor Documentation

RenderGroup()

RenderGroup::RenderGroup	(	Display *	display_id,
		const GLXContext &	glc,
		Window	window_id,
		Window	child_id,
		bool	doublebuffer_flag = true
	)

Default constructor.

Parameters

display_id	Pointer to x display id
glc	Reference to GXLContext
window_id	X window id: used as an id for the render group
child_id	X window id: this is the actual render target. Can be the same as window_id.
doublebuffer_flag	Use double buffering or not (default true)

Member Function Documentation

addContext()

bool RenderGroup::addContext

(

RenderContext *

render_context

)

Add RenderContext to RenderGroup::render_contexes (with checking)

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render()

void RenderGroup::render

(

)

Render everything in this group (i.e.

in this x window)

• Set current x window to RenderGroup::window_id
• Set viewport
• Clear drawing buffer
• Run over RenderGroup::render_contexes and call each one's RenderContext::render() method

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

• /home/sampsa/C/valkka/include/openglthread.h
• /home/sampsa/C/valkka/src/openglthread.cpp