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- /****************************************************************************
- * graphics/nxmu/nxmu__mouse.c
- *
- * Copyright (C) 2008-2009, 2011-2012 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 <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_XYINPUT
- /****************************************************************************
- * 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;
- static struct nxbe_window_s *g_mwnd;
- /****************************************************************************
- * 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;
- /* 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);
- return nxmu_sendclientwindow(wnd, &outmsg, sizeof(struct nxclimsg_mousein_s));
- }
- }
- /* 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;
- uint8_t oldbuttons;
- 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 */
- oldbuttons = g_mbutton;
- g_mpos.x = x;
- g_mpos.y = y;
- g_mbutton = buttons;
- /* If a button is already down, regard this as part of a mouse drag
- * event. Pass all the following events to the window where the drag
- * started in.
- */
- if (oldbuttons && g_mwnd && g_mwnd->cb->mousein)
- {
- struct nxclimsg_mousein_s outmsg;
- outmsg.msgid = NX_CLIMSG_MOUSEIN;
- outmsg.wnd = g_mwnd;
- outmsg.buttons = g_mbutton;
- nxgl_vectsubtract(&outmsg.pos, &g_mpos, &g_mwnd->bounds.pt1);
- return nxmu_sendclientwindow(g_mwnd, &outmsg, sizeof(struct nxclimsg_mousein_s));
- }
- /* Pick the window to receive the mouse event. Start with the top
- * window and go down. Stop 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;
- }
- }
- }
- g_mwnd = wnd;
- }
- return OK;
- }
- #endif /* CONFIG_NX_XYINPUT */
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