114 lines
3.5 KiB
C
114 lines
3.5 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_ARRAY_InsertItem.c
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Purpose : Array handling routines
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---------------------------END-OF-HEADER------------------------------
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*/
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#include "GUI_ARRAY.h"
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#include <string.h>
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#if GUI_WINSUPPORT
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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_ARRAY_InsertBlankItem
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*
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* Purpose:
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* Inserts a blank element in a GUI_ARRAY.
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*
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* Parameters:
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* Index Index of the element to insert before
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* 0 means: Insert before first element
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* 1 means: Insert before second element
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*
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* Return value:
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* 1 if successful
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* 0 if failed
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*
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* Notes:
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* (1) Index changes
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* The index of all items after the one inserted will change
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* (Increment by 1)
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*/
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char GUI_ARRAY_InsertBlankItem(GUI_ARRAY* pThis, unsigned int Index) {
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GUI_ARRAY_CHECK(pThis); /* Sanity checks at higher debug levels only */
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if (Index >= (unsigned)pThis->NumItems) {
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GUI_DEBUG_ERROROUT("GUI_ARRAY_InsertBlankItem: Illegal index");
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} else {
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WM_HMEM hNewBuffer;
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hNewBuffer = GUI_ALLOC_AllocZero(sizeof(WM_HMEM) * (pThis->NumItems + 1));
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if (hNewBuffer == 0) {
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GUI_DEBUG_ERROROUT("GUI_ARRAY_InsertBlankItem: Failed to alloc buffer");
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} else {
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WM_HMEM *pOldBuffer;
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WM_HMEM *pNewBuffer;
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pNewBuffer = (WM_HMEM*) GUI_ALLOC_h2p(hNewBuffer);
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pOldBuffer = (WM_HMEM*) GUI_ALLOC_h2p(pThis->haHandle);
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memcpy(pNewBuffer, pOldBuffer, Index * sizeof(WM_HMEM));
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memcpy(pNewBuffer + (Index + 1), pOldBuffer + Index, (pThis->NumItems - Index) * sizeof(WM_HMEM));
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GUI_ALLOC_Free(pThis->haHandle);
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pThis->haHandle = hNewBuffer;
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pThis->NumItems++;
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return 1; /* Successfull */
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}
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}
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return 0; /* Failed */
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}
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/*********************************************************************
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*
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* GUI_ARRAY_InsertItem
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*
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* Purpose:
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* Inserts an element in a GUI_ARRAY.
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*
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*
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* Parameters:
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* Index Index of the element to insert before
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* 0 means: Insert before first element
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* 1 means: Insert before second element
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*
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* Return value:
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* Handle of allocated memory block if successful
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* 0 if failed
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*
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* Notes:
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* (1) Index changes
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* The index of all items after the one inserted will change
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* (Increment by 1)
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*/
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WM_HMEM GUI_ARRAY_InsertItem(GUI_ARRAY* pThis, unsigned int Index, int Len) {
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WM_HMEM hNewBuffer = 0;
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if (GUI_ARRAY_InsertBlankItem(pThis, Index)) {
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hNewBuffer = GUI_ARRAY_SetItem(pThis, Index, 0, Len);
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}
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return hNewBuffer;
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}
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#else /* avoid empty object files */
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void GUI_ARRAY_InsertItem_C(void);
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void GUI_ARRAY_InsertItem_C(void){}
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#endif
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