/**************************************************************************/ /*!
* @brief Function inits the eGUI itself including all low level drivers.
* @param pInitScreen - the first initialized screen. Could be NULL in case that no screen should be initialized after startup.
* @return result of init operation. D4D_TRUE - everything runs OK, D4D_FALSE initialization failed.
* @note This function initialized complete eGUI, after this function runs,
* the HW is ready and all internal variables are also prepared to run eGUI.
* Must be run as a First function of eGUI in project.
*******************************************************************************/
D4D_BOOL D4D_Init(D4D_SCREEN* pInitScreen)
{
if(!D4D_LCD_Init()) // Init hardware of LCD
return D4D_FALSE;
d4d_screenHistoryIndex = 0;
#ifdef D4D_LLD_TCH
d4d_TouchScreen_Status = 0;
d4d_LastTouchedObj = NULL;
#endif
#ifdef D4D_LLD_MOUSE
D4D_MouseInit();
#endif
// In case that the external font is enabled, just initialize it
#if (D4D_EXTSRC_FILE_ENABLE != D4D_FALSE) && (D4D_FNT_EXTSRC_SUPPORT != D4D_FALSE)
// one time initialization
if(D4D_ExtFntInit() == D4D_FALSE)
return D4D_FALSE;
#endif
d4d_systemFlags = 0;
D4D_ClearKeysBuffer();
if(pInitScreen)
D4D_ActivateScreen(pInitScreen, D4D_FALSE);
return D4D_TRUE;
}
/**************************************************************//*!
*
* Change the active screen
*
******************************************************************/
static void D4D_ChangeScreen(D4D_SCREEN* pNewScreen, D4D_SCREEN* pOldScreen)
{
D4D_SCREEN_DATA* pData;
D4D_MESSAGE tmp_msg;
if(pNewScreen == NULL)
return;
if(pOldScreen == pNewScreen)
return;
tmp_msg.pScreen = pOldScreen;
if(pOldScreen != NULL)
{
D4D_SetObjectFlags(pOldScreen->pData->focusedObject, D4D_OBJECT_F_REDRAWSTATE, D4D_FALSE);
tmp_msg.nMsgId = D4D_MSG_KILLFOCUS;
tmp_msg.pObject = pOldScreen->pData->focusedObject;
D4D_SendMessage(&tmp_msg);
// Draw NC screen area as an inactivate
D4D_DrawScreenNC(pOldScreen, D4D_FALSE);
// call de-activate event
if(pOldScreen->OnDeactivate != NULL)
pOldScreen->OnDeactivate();
}
// invalidate the new screen (global complete redraw, not individual objects)
D4D_InvalidateScreen(pNewScreen, D4D_TRUE);
// if this is the first time activating
pData = pNewScreen->pData;
// Init the screen
D4D_InitScreen(pNewScreen);
D4D_SetObjectFlags(pData->focusedObject, D4D_OBJECT_F_REDRAWSTATE, D4D_FALSE);
// Send to the object Focus message
tmp_msg.pScreen = pNewScreen;
tmp_msg.nMsgId = D4D_MSG_SETFOCUS;
tmp_msg.pObject = pData->focusedObject;
D4D_SendMessage(&tmp_msg);
// inform the screen it has been activated
if(pNewScreen->OnActivate)
pNewScreen->OnActivate();
D4D_ClearKeysBuffer();
#ifdef D4D_LLD_TCH
d4d_LastTouchedObj = NULL;
#endif
// finish all action for previous screen
D4D_MouseChangedScreen();
}
