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50 lines
849 B
C
50 lines
849 B
C
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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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{
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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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}
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~IdleDraw()
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{
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if(m_handler != 0)
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{
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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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{
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if(m_handler == 0)
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{
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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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{
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if(m_handler != 0)
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{
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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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