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133 lines
4.6 KiB
133 lines
4.6 KiB
/**************************************************************************** |
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* NxWidgets/nxwm/include/keyboard.hxx |
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* |
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* Copyright (C) 2012 Gregory Nutt. All rights reserved. |
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* Author: Gregory Nutt <gnutt@nuttx.org> |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* 3. Neither the name NuttX, NxWidgets, nor the names of its contributors |
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* me be used to endorse or promote products derived from this software |
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* without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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* POSSIBILITY OF SUCH DAMAGE. |
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* |
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****************************************************************************/ |
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#ifndef __INCLUDE_CKEYBOARD_HXX |
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#define __INCLUDE_CKEYBOARD_HXX |
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/**************************************************************************** |
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* Included Files |
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****************************************************************************/ |
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#include <nuttx/nx/nxglib.h> |
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#include <semaphore.h> |
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#include <pthread.h> |
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#include <nuttx/input/touchscreen.h> |
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#include "cnxserver.hxx" |
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#include "ccalibration.hxx" |
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/**************************************************************************** |
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* Pre-processor Definitions |
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****************************************************************************/ |
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/**************************************************************************** |
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* Implementation Classes |
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****************************************************************************/ |
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namespace NxWM |
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{ |
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/** |
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* The CKeyboard class provides the the calibration window and obtains |
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* callibration data. |
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*/ |
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class CKeyboard |
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{ |
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private: |
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/** |
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* The state of the listener thread. |
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*/ |
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enum EListenerState |
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{ |
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LISTENER_NOTRUNNING = 0, /**< The listener thread has not yet been started */ |
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LISTENER_STARTED, /**< The listener thread has been started, but is not yet running */ |
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LISTENER_RUNNING, /**< The listener thread is running normally */ |
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LISTENER_STOPREQUESTED, /**< The listener thread has been requested to stop */ |
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LISTENER_TERMINATED, /**< The listener thread terminated normally */ |
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LISTENER_FAILED /**< The listener thread terminated abnormally */ |
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}; |
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/** |
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* CKeyboard state data |
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*/ |
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NXWidgets::CNxServer *m_server; /**< The current NX server */ |
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int m_kbdFd; /**< File descriptor of the opened keyboard device */ |
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pthread_t m_thread; /**< The listener thread ID */ |
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volatile enum EListenerState m_state; /**< The state of the listener thread */ |
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sem_t m_waitSem; /**< Used to synchronize with the listener thread */ |
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/** |
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* The keyboard listener thread. This is the entry point of a thread that |
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* listeners for and dispatches keyboard events to the NX server. |
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* |
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* @param arg. The CKeyboard 'this' pointer cast to a void*. |
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* @return This function normally does not return but may return NULL on |
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* error conditions. |
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*/ |
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static FAR void *listener(FAR void *arg); |
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public: |
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/** |
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* CKeyboard Constructor |
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* |
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* @param server. An instance of the NX server. This will be needed for |
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* injecting mouse data. |
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*/ |
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CKeyboard(NXWidgets::CNxServer *server); |
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/** |
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* CKeyboard Destructor |
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*/ |
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~CKeyboard(void); |
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/** |
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* Start the keyboard listener thread. |
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* |
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* @return True if the keyboard listener thread was correctly started. |
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*/ |
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bool start(void); |
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}; |
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} |
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#endif // __INCLUDE_CKEYBOARD_HXX
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