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Diffstat (limited to 'nuttx/graphics/nxsu/nx_mousein.c')
| -rw-r--r-- | nuttx/graphics/nxsu/nx_mousein.c | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/nuttx/graphics/nxsu/nx_mousein.c b/nuttx/graphics/nxsu/nx_mousein.c new file mode 100644 index 000000000..bee4a2265 --- /dev/null +++ b/nuttx/graphics/nxsu/nx_mousein.c @@ -0,0 +1,200 @@ +/**************************************************************************** + * graphics/nxsu/nx_mousein.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_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 */ |