2012-05-28 03:33:41 +00:00
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#if !defined( INCLUDED_GTKUTIL_IDLEDRAW_H )
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#define INCLUDED_GTKUTIL_IDLEDRAW_H
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#include <glib/gmain.h>
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#include "generic/callback.h"
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class IdleDraw
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{
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Callback m_draw;
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unsigned int m_handler;
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static gboolean draw( gpointer data ){
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reinterpret_cast<IdleDraw*>( data )->m_draw();
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reinterpret_cast<IdleDraw*>( data )->m_handler = 0;
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return FALSE;
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}
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public:
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IdleDraw( const Callback& draw ) : m_draw( draw ), m_handler( 0 ){
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}
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~IdleDraw(){
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if ( m_handler != 0 ) {
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g_source_remove( m_handler );
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}
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}
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void queueDraw(){
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if ( m_handler == 0 ) {
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m_handler = g_idle_add( &draw, this );
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}
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}
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typedef MemberCaller<IdleDraw, &IdleDraw::queueDraw> QueueDrawCaller;
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void flush(){
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if ( m_handler != 0 ) {
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draw( this );
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}
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}
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};
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#endif
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