/*--------------------------------------------------------------------------*//* Toolbox List function example                                            *//*--------------------------------------------------------------------------*/#define HELP_MSG \"This example shows how to use the list functions in the Toolbox instrument\n\driver.  The Toolbox instrument can create a list which holds items of any\n\specified size.  Some of the list functions are:\n\\n\    ListType ListCreate (int Item_Size);\n\\n\    int ListNumItems (ListType List);\n\\n\    int ListInsertItem (ListType List, void *Pointer_To_Item,\n\            int Position_To_Insert_At);\n\\n\    void ListRemoveItem (ListType List, void *Item_Destination,\n\            int Position_Of_Item_To_Remove);\n\\n\    void ListGetItem (ListType List, void *Item_Destination,\n\            int Position_Of_Item_To_Get);\n\\n\    void * CVIFUNC ListGetPtrToItem(ListType list, int itemPosition);\n\\n\    void ListDispose (int Item_Size);\n\\n\\n\This example uses a structure containing 3 members as a list item and allows\n\you to display, add, and remove items from the list."/*---------------------------------------------------------------------------*//* Includes                                                                  *//*---------------------------------------------------------------------------*/#include <utility.h>#include <userint.h>#include "toolbox.h"#include "list.h"/*---------------------------------------------------------------------------*//* Defines                                                                   *//*---------------------------------------------------------------------------*/#define SIZEOF_STRING_MEMBER 256/*---------------------------------------------------------------------------*//* Variables                                                                 *//*---------------------------------------------------------------------------*/static int panelHandle;static ListType myList = 0;/*  Create an arbitrary structure to use in list*/typedef struct MyStructRec           {       int integerValue;    double doubleValue;    char* stringValue;} tMyStruct;        tMyStruct *pMyStruct;/*---------------------------------------------------------------------------*//* Prototypes                                                                *//*---------------------------------------------------------------------------*/int CreateMyList(void);int DestroyMyList(void);int DimControls(void);int UpdateUIR(void);        /*---------------------------------------------------------------------------*//* Main                                                                      *//*---------------------------------------------------------------------------*/int main (int argc, char *argv[]){    if (InitCVIRTE (0, argv, 0) == 0)   /* Initialize CVI libraries */        return -1;  /* out of memory */            if ((panelHandle = LoadPanel (0, "list.uir", PANEL)) < 0)        return -1;            /*Create list and generate default items in List */    if (!CreateMyList())        goto Leave;            DimControls();        DisplayPanel (panelHandle);    RunUserInterface ();    Leave:    /* Destroy list */    DestroyMyList();        return 0;   }/*---------------------------------------------------------------------------*//* CreateMyList                                                              *//*---------------------------------------------------------------------------*/int CreateMyList(void){    tMyStruct tempItem;    int item;        /* Create a list and specify the size of each item in the list */    myList = ListCreate (sizeof(tMyStruct));    if (!myList)    {        MessagePopup("ListCreate", "Error allocating memory for list");        goto Leave;    }           /* Fill list with 10 values */    for (item=1; item<=10; item++)    {        tempItem.integerValue = item;        tempItem.doubleValue = item*5.0;        tempItem.stringValue = calloc(SIZEOF_STRING_MEMBER, 1);                if (!tempItem.stringValue)            goto Leave;                    sprintf(tempItem.stringValue, "String Entry %d", item);            /* Add each element of the structure to the list */        if (!ListInsertItem (myList, &tempItem, END_OF_LIST))         {            MessagePopup("","Error Inserting Item");            goto Leave;        }    }        /* Update UIR */    SetCtrlVal(panelHandle, PANEL_DISPLAYITEM, 1);    UpdateUIR();        return 1;    Leave:        return 0;    }/*---------------------------------------------------------------------------*//* DestroyMyList                                                             *//*---------------------------------------------------------------------------*/int DestroyMyList(void){    int error;    int numItems;    int item;        tMyStruct *tempItem;        /* Get the number of items in list */    numItems = ListNumItems (myList);        /* Access each item and free the malloc'd memory string and remove from list */    for (item=numItems; item>0; item--)    {        tempItem = ListGetPtrToItem (myList, item);                if (tempItem)         {            if (tempItem->stringValue)                free (tempItem->stringValue);                    ListRemoveItem (myList, 0, item);        }        }                   ListDispose (myList);    myList = 0;        return 1;}/*---------------------------------------------------------------------------*//* DimControls                                                               *//*---------------------------------------------------------------------------*/int DimControls(void){    int numItems;        if (!myList)         return 0;                /* Create a list and specify the size of each item in the list */    numItems = ListNumItems (myList);    SetCtrlAttribute(panelHandle, PANEL_ITEMDOUBLE , ATTR_DIMMED,  (!numItems));    SetCtrlAttribute(panelHandle, PANEL_ITEMINTEGER, ATTR_DIMMED,  (!numItems));    SetCtrlAttribute(panelHandle, PANEL_ITEMSTRING , ATTR_DIMMED,  (!numItems));    SetCtrlAttribute(panelHandle, PANEL_DISPLAYITEM, ATTR_DIMMED,  (!numItems));    SetCtrlAttribute(panelHandle, PANEL_DELETEITEM , ATTR_DIMMED,  (!numItems));    return 1;}/*---------------------------------------------------------------------------*//* UpdateUIR                                                                 *//*---------------------------------------------------------------------------*/int UpdateUIR(void) {    int numItems;    int currentItem;    tMyStruct *tempItem;        if (!myList)         numItems = 0;        else         numItems = ListNumItems (myList);        SetCtrlVal(panelHandle, PANEL_TOTALITEMS, numItems);    SetCtrlAttribute (panelHandle, PANEL_DISPLAYITEM, ATTR_MIN_VALUE, (numItems)?1:0);    SetCtrlAttribute(panelHandle, PANEL_DISPLAYITEM, ATTR_MAX_VALUE, (numItems)?numItems:0);        GetCtrlVal(panelHandle, PANEL_DISPLAYITEM, &currentItem);    if (currentItem>0)     {        tempItem = ListGetPtrToItem (myList, currentItem);            if (tempItem)        {            SetCtrlVal(panelHandle, PANEL_ITEMINTEGER, tempItem->integerValue);            SetCtrlVal(panelHandle, PANEL_ITEMDOUBLE,  tempItem->doubleValue);            SetCtrlVal(panelHandle, PANEL_ITEMSTRING,  tempItem->stringValue);        }    }       DimControls();        return 1;}/*---------------------------------------------------------------------------*//* DeleteItemCallback                                                        *//*---------------------------------------------------------------------------*/int CVICALLBACK DeleteItemCallback (int panel, int control, int event,        void *callbackData, int eventData1, int eventData2){    tMyStruct *tempItem;    int currentItem;        switch (event) {        case EVENT_COMMIT:            if (!myList)                return 0;                GetCtrlVal(panel, PANEL_DISPLAYITEM, &currentItem);                        tempItem = ListGetPtrToItem (myList, currentItem);            if (tempItem)             {                if (tempItem->stringValue)                    free (tempItem->stringValue);                                    ListRemoveItem (myList, 0, currentItem);                                /* Update the UIR */                                SetCtrlVal(panel, PANEL_DISPLAYITEM, currentItem-1);                UpdateUIR();            }                            break;    }    return 0;}/*---------------------------------------------------------------------------*//* NewItemCallback                                                           *//*---------------------------------------------------------------------------*/int CVICALLBACK NewItemCallback (int panel, int control, int event,        void *callbackData, int eventData1, int eventData2){    tMyStruct tempItem;    int currentItem;        switch (event) {        case EVENT_COMMIT:            if (!myList)                return 0;                GetCtrlVal(panel, PANEL_DISPLAYITEM, &currentItem);                        tempItem.integerValue = 0;            tempItem.doubleValue = 0.0;            tempItem.stringValue = calloc(SIZEOF_STRING_MEMBER, 1);                if (!tempItem.stringValue)                goto Leave;                    sprintf(tempItem.stringValue, "");            /* Add each element of the structure to the list */            if (!ListInsertItem (myList, &tempItem, currentItem+1))                 goto Leave;                            /* Update the UIR */                            SetCtrlVal(panel, PANEL_DISPLAYITEM, currentItem+1);            UpdateUIR();                        break;    }        return 0;    Leave:    MessagePopup("Add New Item","Error Inserting Item");    if (!tempItem.stringValue)         free (tempItem.stringValue);            return 0;}/*---------------------------------------------------------------------------*//* ChangeItemCallback                                                        *//*---------------------------------------------------------------------------*/int CVICALLBACK ChangeItemCallback (int panel, int control, int event,        void *callbackData, int eventData1, int eventData2){    switch (event) {        case EVENT_COMMIT:            if (myList)                UpdateUIR();            break;    }    return 0;}/*---------------------------------------------------------------------------*//* ChangeItemValueCallback                                                   *//*---------------------------------------------------------------------------*/int CVICALLBACK ChangeItemValueCallback (int panel, int control, int event,        void *callbackData, int eventData1, int eventData2){    tMyStruct *tempItem;    int currentItem;        switch (event) {        case EVENT_COMMIT:            if (!myList)                return 0;                GetCtrlVal(panel, PANEL_DISPLAYITEM, &currentItem);                        tempItem = ListGetPtrToItem (myList, currentItem);            if (tempItem)             {                if (control == PANEL_ITEMINTEGER)                     GetCtrlVal(panel, PANEL_ITEMINTEGER, &tempItem->integerValue);                else if (control == PANEL_ITEMDOUBLE)                     GetCtrlVal(panel, PANEL_ITEMDOUBLE, &tempItem->doubleValue);                else if (control == PANEL_ITEMSTRING)                     GetCtrlVal(panel, PANEL_ITEMSTRING, tempItem->stringValue);            }                            break;    }    return 0;}/*---------------------------------------------------------------------------*//* QuitCallback                                                              *//*---------------------------------------------------------------------------*/int CVICALLBACK QuitCallback (int panel, int control, int event,        void *callbackData, int eventData1, int eventData2){    switch (event) {        case EVENT_COMMIT:            QuitUserInterface (0);            break;    }    return 0;}/*---------------------------------------------------------------------------*//* HelpCallback                                                              *//*---------------------------------------------------------------------------*/int CVICALLBACK HelpCallback (int panel, int control, int event,        void *callbackData, int eventData1, int eventData2){    switch (event) {        case EVENT_RIGHT_CLICK:        case EVENT_COMMIT:            MessagePopup ("Toolbox List Example Program", HELP_MSG);        break;    }    return 0;}