/**************************************************************************** * NxWidgets/libnxwidgets/src/singletons.cxx * * Copyright (C) 2012 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, NxWidgets, nor the names of its contributors * me 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. * **************************************************************************** * * Portions of this package derive from Woopsi (http://woopsi.org/) and * portions are original efforts. It is difficult to determine at this * point what parts are original efforts and which parts derive from Woopsi. * However, in any event, the work of Antony Dzeryn will be acknowledged * in most NxWidget files. Thanks Antony! * * Copyright (c) 2007-2011, Antony Dzeryn * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 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. * * Neither the names "Woopsi", "Simian Zombie" 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 Antony Dzeryn ``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 Antony Dzeryn 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 #include "nxconfig.hxx" #include "cnxserver.hxx" #include "cnxstring.hxx" #include "cwidgetstyle.hxx" #include "cnxfont.hxx" #include "singletons.hxx" /**************************************************************************** * Pre-Processor Definitions ****************************************************************************/ /**************************************************************************** * Global Static Data ****************************************************************************/ using namespace NXWidgets; CWidgetStyle *NXWidgets::g_defaultWidgetStyle; /**< The default widget style */ CNxString *NXWidgets::g_nullString; /**< The reusable empty string */ TNxArray *NXWidgets::g_nxTimers; /**< An array of all timers */ /**************************************************************************** * Method Implementations ****************************************************************************/ /** * Setup misc singleton instances. Why is there here? Because it needs to be * done one time before any widgets are created. So why isn't it just the * default style just a statically constructed class? Because not all platforms * will support static class constructions. */ void NXWidgets::instantiateSingletons(void) { // Disable pre-emption. Since we are dealing with global resources here we // are not inherently thread-safe. sched_lock(); // Create a global, empty string that may be used whereever a string is // required, but not needed. if (!g_nullString) { g_nullString = new CNxString(); } // Setup the default widget style if (!g_defaultWidgetStyle) { // Create the singleton g_defaultWidgetStyle = new CWidgetStyle(); // Default colors g_defaultWidgetStyle->colors.background = CONFIG_NXWIDGETS_DEFAULT_BACKGROUNDCOLOR; g_defaultWidgetStyle->colors.selectedBackground = CONFIG_NXWIDGETS_DEFAULT_SELECTEDBACKGROUNDCOLOR; g_defaultWidgetStyle->colors.shineEdge = CONFIG_NXWIDGETS_DEFAULT_SHINEEDGECOLOR; g_defaultWidgetStyle->colors.shadowEdge = CONFIG_NXWIDGETS_DEFAULT_SHADOWEDGECOLOR; g_defaultWidgetStyle->colors.highlight = CONFIG_NXWIDGETS_DEFAULT_HIGHLIGHTCOLOR; g_defaultWidgetStyle->colors.disabledText = CONFIG_NXWIDGETS_DEFAULT_DISABLEDTEXTCOLOR; g_defaultWidgetStyle->colors.enabledText = CONFIG_NXWIDGETS_DEFAULT_ENABLEDTEXTCOLOR; g_defaultWidgetStyle->colors.selectedText = CONFIG_NXWIDGETS_DEFAULT_SELECTEDTEXTCOLOR; // Default font using the default font ID and the default font colors g_defaultWidgetStyle->font = new CNxFont((enum nx_fontid_e)CONFIG_NXWIDGETS_DEFAULT_FONTID, CONFIG_NXWIDGETS_DEFAULT_FONTCOLOR, CONFIG_NXWIDGETS_TRANSPARENT_COLOR); } // Create the timer list if (!g_nxTimers) { g_nxTimers = new TNxArray(); } sched_unlock(); } /** * Free the singleton instances when the last NX server is destroyed. */ void NXWidgets::freeSingletons(void) { // Delete the null string singleton if (g_nullString) { delete g_nullString; g_nullString = (CNxString *)NULL; } // Delete the default widget style singleton if (g_defaultWidgetStyle) { if (g_defaultWidgetStyle->font) { delete g_defaultWidgetStyle->font; } delete g_defaultWidgetStyle; g_defaultWidgetStyle = (CWidgetStyle *)NULL; } // Free the timer list if (g_nxTimers) { delete g_nxTimers; g_nxTimers = (TNxArray *)NULL; } }