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