/****************************************************************************
* arch/sim/src/up_x11eventloop.c
*
* Copyright (C) 2011 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <stdio.h>
#include <X11/Xlib.h>
/****************************************************************************
* Definitions
****************************************************************************/
/****************************************************************************
* Private Type Declarations
***************************************************************************/
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
extern int up_buttonevent(int x, int y, int buttons);
/****************************************************************************
* Public Variables
****************************************************************************/
/* Defined in up_x11framebuffer.c */
extern Display *g_display;
volatile int g_eventloop;
/****************************************************************************
* Private Variables
****************************************************************************/
/****************************************************************************
* Private Functions
***************************************************************************/
/****************************************************************************
* Name: up_buttonmap
***************************************************************************/
static int up_buttonmap(int state)
{
/* Remove any X11 dependencies. Just maps Button1Mask to bit 0. */
return ((state & Button1Mask) != 0) ? 1 : 0;
}
/****************************************************************************
* Public Functions
***************************************************************************/
/****************************************************************************
* Name: up_x11events
*
* Description:
* Called periodically from the IDLE loop to check for queued X11 events.
*
***************************************************************************/
void up_x11events(void)
{
XEvent event;
/* Check if there are any pending, queue X11 events. */
if (XPending(g_display) > 0)
{
/* Yes, get the event (this should not block since we know there are
* pending events)
*/
XNextEvent(g_display, &event);
/* Then process the event */
switch (event.type)
{
case MotionNotify : /* Enabled by ButtonMotionMask */
{
up_buttonevent(event.xmotion.x, event.xmotion.y,
up_buttonmap(event.xmotion.state));
}
break;
case ButtonPress : /* Enabled by ButtonPressMask */
case ButtonRelease : /* Enabled by ButtonReleaseMask */
{
up_buttonevent(event.xbutton.x, event.xbutton.y,
up_buttonmap(event.xbutton.state));
}
break;
default :
break;
}
}
}
