simplegui/HMI/src/HMI_Data.c

/*************************************************************************/
/** Copyright.															**/
/** FileName: HMI_Data.c												**/
/** Author: Polarix														**/
/** Version: 1.0.0.0													**/
/** Description: User operation interface.								**/
/** History:															**/
/**	XuyYulin	2017/2/27	2.0.0.0		New create.						**/
/** XuYulin 2017/2/27 1.0 build this moudle								**/
/*************************************************************************/
//=======================================================================//
//= Include files.													    =//
//=======================================================================//
#include "HMI_Data.h"
#include "HMI_Demo_01.h"
#include "HMI_Demo_02.h"

//=======================================================================//
//= Static variable declaration.									    =//
//=======================================================================//
static size_t						uiScreenCount;
static size_t						uiCurrentScreenIndex;
static size_t						uiScreenFollowUpHistory[HMI_GOBACK_HISTORY_SIZE_MAX];
static size_t						uiScreenFollowUpHistoryIndex;

static HMI_SCREEN*					pstarrScreenDataArray[] = {
												// Add HMI data here.
												&g_stHMI_DemoList,
												&g_stHMI_DemoNotice
												};

//=======================================================================//
//= Function implementation.										    =//
//=======================================================================//
/*****************************************************************************/
/** Function Name:	HMI_ActionMap_Initialize								**/
/** Purpose:		Initialize screen follow-up data.						**/
/** Resources:		Screen data array and count variable.					**/
/** Parameters:		None.													**/
/** Return:			None.													**/
/** Notice:			This function must be called in action map initialize	**/
/**					process.												**/
/*****************************************************************************/
void HMI_ScreenData_Initialize(void)
{
	/*----------------------------------*/
	/* Variable Declaration				*/
	/*----------------------------------*/
	size_t				uiScreenIndex;

	/*----------------------------------*/
	/* Initialize						*/
	/*----------------------------------*/
	uiCurrentScreenIndex = 0;
	uiScreenCount = sizeof(pstarrScreenDataArray)/sizeof(HMI_SCREEN*);

	/*----------------------------------*/
	/* Process							*/
	/*----------------------------------*/
	// Initialize each screen.
	for(uiScreenIndex=0; uiScreenIndex<uiScreenCount; uiScreenIndex++)
	{
		if(NULL != pstarrScreenDataArray[uiScreenIndex])
		{
            if(NULL != pstarrScreenDataArray[uiScreenIndex]->Initialize)
			{
				// Run initialize process if existed.
				pstarrScreenDataArray[uiScreenIndex]->Initialize();
			}
		}
	}

	uiScreenFollowUpHistoryIndex = 0;
}

/*****************************************************************************/
/** Function Name:	Set current active screen data pointer.					**/
/** Purpose:		Set static screen data pointer to a new data structure.	**/
/** Resources:		Static global screen data pointer.						**/
/** Parameters:																**/
/**	@uiScreenIndex:		Screen data will be set.							**/
/** Return:			None.													**/
/** Notice:			None.													**/
/*****************************************************************************/
void HMI_ScreenData_SetCurrentScreen(size_t uiScreenIndex)
{
	uiCurrentScreenIndex = uiScreenIndex;
}

/*****************************************************************************/
/** Function Name:	HMI_ScreenData_GetCurrentScreen.						**/
/** Purpose:		Get current screen data structure pointer which in		**/
/**					active.													**/
/** Resources:		Static global screen data pointer.						**/
/** Parameters:		None.													**/
/** Return:			Current in active screen data structure pointer.		**/
/** Notice:			None.													**/
/*****************************************************************************/
HMI_SCREEN* HMI_ScreenData_GetCurrentScreen(void)
{
	/*----------------------------------*/
	/* Variable Declaration				*/
	/*----------------------------------*/
	HMI_SCREEN*				pstCurrentScreen;

	/*----------------------------------*/
	/* Process							*/
	/*----------------------------------*/
	if(uiCurrentScreenIndex < uiScreenCount)
	{
		pstCurrentScreen = pstarrScreenDataArray[uiCurrentScreenIndex];
	}
	else
	{
		pstCurrentScreen = NULL;
	}

    return pstCurrentScreen;
}

/*****************************************************************************/
/** Function Name:	HMI_ScreenData_AddToHistory.							**/
/** Purpose:		Get current screen data structure pointer which in		**/
/**					active.													**/
/** Resources:		Static global screen data pointer.						**/
/** Parameters:		None.													**/
/** Return:			Current in active screen data structure pointer.		**/
/** Notice:			None.													**/
/*****************************************************************************/
bool HMI_ScreenData_AddToHistory(size_t uiScreenIndex)
{
	bool			bProcessResult;

	if(uiScreenFollowUpHistoryIndex < HMI_GOBACK_HISTORY_SIZE_MAX)
	{
		uiScreenFollowUpHistory[uiScreenFollowUpHistoryIndex] = uiScreenIndex;
		uiScreenFollowUpHistoryIndex++;
		bProcessResult = true;
	}
	else
	{
		bProcessResult = false;
	}

	return bProcessResult;
}

/*****************************************************************************/
/** Function Name:	HMI_ScreenData_AddToHistory.							**/
/** Purpose:		Get current screen data structure pointer which in		**/
/**					active.													**/
/** Resources:		Static global screen data pointer.						**/
/** Parameters:		None.													**/
/** Return:			Current in active screen data structure pointer.		**/
/** Notice:			None.													**/
/*****************************************************************************/
size_t HMI_ScreenData_GetFromHistory(void)
{
	size_t				uiScreenID;
	if(uiScreenFollowUpHistoryIndex > 0)
	{
		uiScreenFollowUpHistoryIndex--;
		uiScreenID = uiScreenFollowUpHistory[uiScreenFollowUpHistoryIndex];
	}
	else
	{
		uiScreenID = 0;
	}
	return uiScreenID;
}