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author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2012-03-22 21:22:59 +0000 |
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committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2012-03-22 21:22:59 +0000 |
commit | 4dedf494c242b2c4b52707441eefe2a36fbacf0f (patch) | |
tree | 36728130c995053f18637c019829f492f0c3b3fe /NxWidgets/libnxwidgets/src/singletons.cxx | |
parent | af2319a52f4b11df952a5a1060c76cc0cdff0b98 (diff) | |
download | px4-nuttx-4dedf494c242b2c4b52707441eefe2a36fbacf0f.tar.gz px4-nuttx-4dedf494c242b2c4b52707441eefe2a36fbacf0f.tar.bz2 px4-nuttx-4dedf494c242b2c4b52707441eefe2a36fbacf0f.zip |
First check-in of NxWidgets
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4505 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'NxWidgets/libnxwidgets/src/singletons.cxx')
-rw-r--r-- | NxWidgets/libnxwidgets/src/singletons.cxx | 202 |
1 files changed, 202 insertions, 0 deletions
diff --git a/NxWidgets/libnxwidgets/src/singletons.cxx b/NxWidgets/libnxwidgets/src/singletons.cxx new file mode 100644 index 000000000..fc5d919e6 --- /dev/null +++ b/NxWidgets/libnxwidgets/src/singletons.cxx @@ -0,0 +1,202 @@ +/**************************************************************************** + * NxWidgets/libnxwidgets/src/singletons.cxx + * + * Copyright (C) 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, 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 <nuttx/config.h> + +#include <sys/types.h> +#include <stdint.h> +#include <stdbool.h> +#include <sched.h> +#include <debug.h> + +#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<CNxTimer*> *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<CNxTimer*>(); + } + + 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<CNxTimer*> *)NULL; + } + +} + |