148 lines
3.6 KiB
C
148 lines
3.6 KiB
C
/*
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*********************************************************************************************************
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* uC/GUI
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* Universal graphic software for embedded applications
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*
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* (c) Copyright 2002, Micrium Inc., Weston, FL
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* (c) Copyright 2002, SEGGER Microcontroller Systeme GmbH
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*
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* µC/GUI is protected by international copyright laws. Knowledge of the
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* source code may not be used to write a similar product. This file may
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* only be used in accordance with a license and should not be redistributed
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* in any way. We appreciate your understanding and fairness.
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*
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----------------------------------------------------------------------
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File : GUI_OnKey.c
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Purpose : Implementation of GUI_StoreKeyMsg
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---------------------------END-OF-HEADER------------------------------
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*/
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#include "GUI_Protected.h"
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#if GUI_WINSUPPORT
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#include "WM.h"
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#endif
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/*********************************************************************
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*
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* Static data
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*
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**********************************************************************
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*/
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#if GUI_WINSUPPORT
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static int _KeyMsgCnt;
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static struct {
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int Key;
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int PressedCnt;
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} _KeyMsg;
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#endif
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static int _Key;
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/*********************************************************************
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*
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* Public data
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*
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**********************************************************************
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*/
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GUI_KEY_MSG_HOOK* GUI_pfKeyMsgHook;
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/*********************************************************************
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*
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* Public code
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*
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**********************************************************************
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*/
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/*********************************************************************
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*
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* GUI_GetKey
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*/
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int GUI_GetKey(void) {
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int r = _Key;
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_Key = 0;
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return r;
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}
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/*********************************************************************
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*
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* GUI_StoreKey
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*/
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void GUI_StoreKey(int Key) {
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if (!_Key) {
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_Key = Key;
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}
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GUI_X_SIGNAL_EVENT();
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}
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/*********************************************************************
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*
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* GUI_ClearKeyBuffer
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*/
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void GUI_ClearKeyBuffer(void) {
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while (GUI_GetKey());
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}
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/*********************************************************************
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*
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* GUI_StoreKeyMsg
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*/
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void GUI_StoreKeyMsg(int Key, int PressedCnt) {
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#if GUI_WINSUPPORT /* If 0, WM will not generate any code */
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_KeyMsg.Key = Key;
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_KeyMsg.PressedCnt = PressedCnt;
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_KeyMsgCnt = 1;
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GUI_X_SIGNAL_EVENT();
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#else
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GUI_USE_PARA(PressedCnt);
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GUI_StoreKey(Key);
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#endif
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}
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/*********************************************************************
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*
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* GUI_PollKeyMsg
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*/
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#if GUI_WINSUPPORT /* If 0, WM will not generate any code */
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int GUI_PollKeyMsg(void) {
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int r = 0;
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GUI_LOCK();
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if (_KeyMsgCnt) {
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int Key;
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_KeyMsgCnt--;
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Key = _KeyMsg.Key;
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WM_OnKey(Key, _KeyMsg.PressedCnt);
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if (_KeyMsg.PressedCnt == 1) {
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GUI_StoreKey(Key);
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}
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r = 1; /* We have done something */
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}
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GUI_UNLOCK();
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return r;
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}
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#endif
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/*********************************************************************
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*
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* GUI_SendKeyMsg
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*
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* Purpose:
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* Send the key to a window using the window manager (if available).
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* If no window is ready to take the input, we call the store routine
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* and wait for somebody to poll the buffer.
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*/
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void GUI_SendKeyMsg(int Key, int PressedCnt) {
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#if GUI_WINSUPPORT /* If 0, WM will not generate any code */
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if (!WM_OnKey(Key, PressedCnt)) {
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GUI_StoreKeyMsg(Key, PressedCnt);
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}
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#else
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GUI_StoreKeyMsg(Key, PressedCnt);
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#endif
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}
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/*************************** End of file ****************************/
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