Resync new repository with old repo r5166

git-svn-id: http://svn.code.sf.net/p/nuttx/code/trunk@5153 42af7a65-404d-4744-a932-0658087f49c3
2026-11-04 04:31:36 +08:00 · 2012-09-17 18:18:44 +00:00
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+/****************************************************************************
+ * 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;
+        }
+    }
+}