/**************************************************************************** * libnx/nxtk/nxtk_openwindow.c * * Copyright (C) 2008-2009, 2012-2013 Gregory Nutt. All rights reserved. * Author: Gregory Nutt * * 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 #include #include #include #include #include "nxcontext.h" #include "nxtk_internal.h" /**************************************************************************** * Pre-Processor Definitions ****************************************************************************/ /**************************************************************************** * Private Types ****************************************************************************/ /**************************************************************************** * Private Data ****************************************************************************/ /**************************************************************************** * Public Data ****************************************************************************/ nxgl_mxpixel_t g_bordercolor1[CONFIG_NX_NPLANES] = { CONFIG_NXTK_BORDERCOLOR1 #if CONFIG_NX_NPLANES > 1 # error "Multiple plane border colors not defined" #endif }; nxgl_mxpixel_t g_bordercolor2[CONFIG_NX_NPLANES] = { CONFIG_NXTK_BORDERCOLOR2 #if CONFIG_NX_NPLANES > 1 # error "Multiple plane border colors not defined" #endif }; nxgl_mxpixel_t g_bordercolor3[CONFIG_NX_NPLANES] = { CONFIG_NXTK_BORDERCOLOR3 #if CONFIG_NX_NPLANES > 1 # error "Multiple plane border colors not defined" #endif }; /**************************************************************************** * Private Functions ****************************************************************************/ /**************************************************************************** * Public Functions ****************************************************************************/ /**************************************************************************** * Name: nxtk_openwindow * * Description: * Create a new, framed window. * * Input Parameters: * handle - The handle returned by nx_connect * cb - Callbacks used to process window events * arg - User provided value that will be returned with NXTK callbacks. * * Return: * Success: A non-NULL handle used with subsequent NXTK window accesses * Failure: NULL is returned and errno is set appropriately * ****************************************************************************/ NXTKWINDOW nxtk_openwindow(NXHANDLE handle, FAR const struct nx_callback_s *cb, FAR void *arg) { FAR struct nxtk_framedwindow_s *fwnd; int ret; #ifdef CONFIG_DEBUG if (!handle || !cb) { set_errno(EINVAL); return NULL; } #endif /* Pre-allocate the window structure */ fwnd = (FAR struct nxtk_framedwindow_s *) lib_uzalloc(sizeof(struct nxtk_framedwindow_s)); if (!fwnd) { set_errno(ENOMEM); return NULL; } /* Initialize the window structure */ fwnd->fwcb = cb; fwnd->fwarg = arg; /* Then let nx_constructwindow do the rest */ ret = nx_constructwindow(handle, (NXWINDOW)&fwnd->wnd, &g_nxtkcb, NULL); if (ret < 0) { /* An error occurred, the window has been freed */ return NULL; } /* Return the initialized window reference */ return (NXTKWINDOW)fwnd; }