/****************************************************************************
* graphics/nxsu/nx_mousein.c
*
* Copyright (C) 2008-2009, 2011 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 <stdint.h>
#include <errno.h>
#include <debug.h>
#include <nuttx/nx/nxglib.h>
#include <nuttx/nx/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 uint8_t g_mbutton;
/****************************************************************************
* Public Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: nxsu_mouseinit
*
* Description:
* Initialize with the mouse in the center of the display
*
****************************************************************************/
void nxsu_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: nxsu_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 nxsu_mousereport(struct nxbe_window_s *wnd)
{
struct nxgl_point_s relpos;
/* 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 */
nxgl_vectsubtract(&relpos, &g_mpos, &wnd->bounds.pt1);
wnd->cb->mousein((NXWINDOW)wnd, &relpos, g_mbutton, wnd->arg);
return OK;
}
}
/* No error occurred, but the mouse report was not sent */
return 1;
}
/****************************************************************************
* Name: nx_mousein
*
* Description:
* Used by a thread or interrupt handler that manages some kind of pointing
* hardware to report new positional data to the NX server. That positional
* data will be routed by the NX server to the appropriate window client.
*
****************************************************************************/
int nx_mousein(NXHANDLE handle, nxgl_coord_t x, nxgl_coord_t y, uint8_t buttons)
{
FAR struct nxfe_state_s *fe = (FAR struct nxfe_state_s *)handle;
struct nxbe_window_s *wnd;
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)
{
ret = nxsu_mousereport(wnd);
if (ret == 0)
{
break;
}
}
}
return OK;
}
#endif /* CONFIG_NX_MOUSE */
