/****************************************************************************
* graphics/nxmu/nxmu__mouse.c
*
* Copyright (C) 2008 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* 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 <nuttx/config.h>
#include <sys/types.h>
#include <errno.h>
#include <debug.h>
#include <nuttx/nxglib.h>
#include <nuttx/nx.h>
#include "nxfe.h"
#ifdef CONFIG_NX_MOUSE
/****************************************************************************
* Pre-Processor Definitions
****************************************************************************/
/****************************************************************************
* Private Types
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
static struct nxgl_point_s g_mpos;
static struct nxgl_point_s g_mrange;
static ubyte g_mbutton;
/****************************************************************************
* Public Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: nxmu_mouseinit
*
* Description:
* Initialize with the mouse in the center of the display
*
****************************************************************************/
void nxmu_mouseinit(int x, int y)
{
g_mrange.x = x;
g_mrange.y = y;
g_mpos.x = x / 2;
g_mpos.y = y / 2;
g_mbutton = 0;
}
/****************************************************************************
* Name: nxmu_mousereport
*
* Description:
* Report mouse position info to the specified window
*
* Input Parameters:
* wnd - The window to receive the mouse report
*
* Returned Value:
* 0: Mouse report sent; >0: Mouse report not sent; <0: An error occurred
*
****************************************************************************/
int nxmu_mousereport(struct nxbe_window_s *wnd)
{
struct nxclimsg_mousein_s outmsg;
int ret;
/* Does this window support mouse callbacks? */
if (wnd->cb->mousein)
{
/* Yes.. Is the mouse position visible in this window? */
if (nxbe_visible(wnd, &g_mpos))
{
/* Yes... Convert the mouse position to window relative
* coordinates and send it to the client
*/
outmsg.msgid = NX_CLIMSG_MOUSEIN;
outmsg.wnd = wnd;
outmsg.buttons = g_mbutton;
nxgl_vectsubtract(&outmsg.pos, &g_mpos, &wnd->bounds.pt1);
ret = mq_send(wnd->conn->swrmq, &outmsg,
sizeof(struct nxclimsg_mousein_s), NX_SVRMSG_PRIO);
if (ret < 0)
{
gdbg("mq_send failed: %d\n", errno);
}
return ret;
}
}
/* No error occurred, but the mouse report was not sent */
return 1;
}
/****************************************************************************
* Name: nxmu_mousein
*
* Description:
* New positional data has been received from the thread or interrupt
* handler that manages some kind of pointing hardware. Route that
* positional data to the appropriate window client.
*
****************************************************************************/
int nxmu_mousein(FAR struct nxfe_state_s *fe,
FAR const struct nxgl_point_s *pos, int buttons)
{
struct nxbe_window_s *wnd;
nxgl_coord_t x = pos->x;
nxgl_coord_t y = pos->y;
int ret;
/* Clip x and y to within the bounding rectangle */
if (x < 0)
{
x = 0;
}
else if (x >= g_mrange.x)
{
x = g_mrange.x - 1;
}
if (y < 0)
{
y = 0;
}
else if (y >= g_mrange.y)
{
y = g_mrange.y - 1;
}
/* Look any change in values */
if (x != g_mpos.x || y != g_mpos.y || buttons != g_mbutton)
{
/* Update the mouse value */
g_mpos.x = x;
g_mpos.y = y;
g_mbutton = buttons;
/* Pick the window to receive the mouse event. Start with
* the top window and go down. Step with the first window
* that gets the mouse report
*/
for (wnd = fe->be.topwnd; wnd; wnd = wnd->below)
{
/* The background window normally has no callback structure
* (unless a client has taken control of the background via
* nx_requestbkgd()).
*/
if (wnd->cb)
{
ret = nxmu_mousereport(wnd);
if (ret == 0)
{
break;
}
}
}
}
return OK;
}
#endif /* CONFIG_NX_MOUSE */
