mainform.c

可编程器件厂商Xilinx的手持式逻辑分析仪的逻辑设计

/*============================================================================*/
/* Filename:    MainForm.c                                                    */
/*                                                                            */
/* Description: This file contains the functions that receive and handle the  */
/*              events generated by the Main Form of the PocketAnalyzer       */
/*              application.                                                  */
/*                                                                            */
/* Required Header File(s): PalmOS.h                                          */
/*                          PocketAnalyzerRsc.h                               */
/*                          Globals.h                                         */
/*                                                                            */
/* Function List:                                                             */
/*      MainFormHandleEvent This function is the event handler for the Main   */
/*                          Form.  It checks each event and calls the         */
/*                          appropriate function(s) to respond to it.         */
/*      MainFormDoCommand   This function handles all of the menu events from */
/*                          Main Form Menu.                                   */
/*                                                                            */
/*============================================================================*/
/* COPYRIGHT (C) 2001                                                         */
/* NowTech, LLC                                                               */
/* Knoxville, TN                                                              */
/*                                                                            */
/* ALL RIGHTS RESERVED                                                        */
/*                                                                            */
/* This software and all information and ideas contained within are the sole  */
/* property of NowTech, LLC and are confidential.  Neither this software nor  */
/* any part nor any information contained in it may be disclosed or furnished */
/* to others without the prior written consent of NowTech, LLC.               */
/*                                                                            */
/*============================================================================*/

/*============================================================================*/
/* System Level Include Files:                                                */
/*============================================================================*/
#include <PalmOS.h>

/*============================================================================*/
/* Project Specific Include Files:                                            */
/*============================================================================*/
#include "PocketAnalyzerRsc.h"
#include "GlobalDefs.h"
#include "SpringBoardIO.h"

/*============================================================================*/
/* Define any data structures that are used exclusively by the functions      */
/* local to this source file.                                                 */
/*============================================================================*/
/***** None *****/

/*============================================================================*/
/* Define all constants used by the functions in this source file.            */
/*============================================================================*/
/***** None *****/

/*============================================================================*/
/* Define all variables which must have project global scope.  All variables  */
/* defined in this section will be accessible by all functions in all source  */
/* files in this project and must have a corresponding extern statement in    */
/* the GlobalDefs.h include file.                                             */
/*============================================================================*/
/***** None *****/

/*============================================================================*/
/* Define all variables which must have source file global scope but not have */
/* project wide scope.  These variables must be defined with the "static"     */
/* type qualifier so that the variables scope will be limited to only the     */
/* functions in this source file.                                             */
/*============================================================================*/
/***** None *****/

/*============================================================================*/
/* Define the function prototypes for all local functions.  The prototypes    */
/* for all global functions should be defined in the GlobalDefs.h include     */
/* file.                                                                      */
/*============================================================================*/
void MainFormInit (FormPtr);
Boolean MainFormDoCommand (UInt16);
void GetPlotSpacing (UInt8, UInt8*, UInt8*, UInt8*, UInt8*);
void PlotAreaGadgetTapped (void);








/*============================================================================*/
/* Function:            MainFormHandleEvent                                   */
/* Description:         This routine is the event handler for the Main Form   */
/*                      of the PocketAnalyzer application.                    */
/*                                                                            */
/* Arguments:           pEvent = a pointer to an EventType structure          */
/* Returns:             bHandled = TRUE if the event is handled and should    */
/*                                 not be passed to a higher level handler.   */
/*                                 FALSE if the event was not handled and     */
/*                                 should be passed to the next higher level  */
/*                                 handler.                                   */
/* Globals affected:    None                                                  */
/* Hardware affected:   None                                                  */
/*                                                                            */
/*============================================================================*/
/* Change History:                                                            */
/*                                                                            */
/* ECO#:  ?                                                                   */
/* Change Date:  dd-mmm-yyyy                                                  */
/* Changed By:   ?                                                            */
/* Description of Change:  ?                                                  */
/*                                                                            */
/*============================================================================*/
Boolean MainFormHandleEvent (EventPtr pEvent)
{
    /*========================================================================*/
    /* Declare all local variables.                                           */
    /*========================================================================*/
    Boolean bHandled = false;
    FormPtr pFrm;
    UInt16  ButtonPressed;
    Char    NewChnlLabel[4];
    ListPtr pLst;
    Char* pLabel;
    ControlPtr pCtl;
    sbioRunStateType RunState;

    /*========================================================================*/
    /* Check the event type to see how to respond.                            */
    /*========================================================================*/
    switch (pEvent->eType)
        {
        case menuEvent:
            return MainFormDoCommand(pEvent->data.menu.itemID);
            break;

        case frmOpenEvent:
            pFrm = FrmGetActiveForm();
            MainFormInit (pFrm);
            FrmDrawForm (pFrm);
            bHandled = true;
            break;

        /*====================================================================*/
        /* Get the user's Timebase selection from the list popup.             */
        /*====================================================================*/
        case popSelectEvent:
            if (pEvent->data.popSelect.selection != pEvent->data.popSelect.priorSelection)
            {
                AppPrefs.Timebase = pEvent->data.popSelect.selection;

                /*============================================================*/
                /* Set the Timescale in both the list and the selector.       */
                /*============================================================*/
                pLst = GetObjectPtr (frmMainTimeScaleList);
                LstSetSelection (pLst, AppPrefs.Timebase);
                pLabel = LstGetSelectionText (pLst, AppPrefs.Timebase);

                pCtl = GetObjectPtr (frmMainTimeScalePopTrigger);
                CtlSetLabel (pCtl, pLabel);
                FrmShowObject (pFrm, FrmGetObjectIndex (pFrm,
                                                   frmMainTimeScalePopTrigger));

                /*============================================================*/
                /* Refresh the graph display reflecting the new settings.     */
                /*============================================================*/
                DrawPlotAreaGadget();
                DrawBufferBarGadget();
            }
            bHandled = true;
            break;

        case ctlSelectEvent:
            switch (pEvent->data.ctlSelect.controlID)
            {
                case frmMainCh7LabelButton:
                    ButtonPressed = FrmCustomResponseAlert (ChnlLabelChangeAlert,
                                    "7", NULL, NULL, NewChnlLabel, 4, NULL);
                    if (ButtonPressed == 0)
                    {
                        StrCopy (AppPrefs.ChnlLabel[7], NewChnlLabel);
                        CtlSetLabel (GetObjectPtr(frmMainCh7LabelButton),
                                    AppPrefs.ChnlLabel[7]);
                    }
                    bHandled = true;
                    break;
                case frmMainCh6LabelButton:
                    ButtonPressed = FrmCustomResponseAlert (ChnlLabelChangeAlert,
                                    "6", NULL, NULL, NewChnlLabel, 4, NULL);
                    if (ButtonPressed == 0)
                    {
                        StrCopy (AppPrefs.ChnlLabel[6], NewChnlLabel);
                        CtlSetLabel (GetObjectPtr(frmMainCh6LabelButton),
                                    AppPrefs.ChnlLabel[6]);
                    }
                    bHandled = true;
                    break;
                case frmMainCh5LabelButton:
                    ButtonPressed = FrmCustomResponseAlert (ChnlLabelChangeAlert,
                                    "5", NULL, NULL, NewChnlLabel, 4, NULL);
                    if (ButtonPressed == 0)
                    {
                        StrCopy (AppPrefs.ChnlLabel[5], NewChnlLabel);
                        CtlSetLabel (GetObjectPtr(frmMainCh5LabelButton),
                                     AppPrefs.ChnlLabel[5]);
                    }
                    bHandled = true;
                    break;
                case frmMainCh4LabelButton:
                    ButtonPressed = FrmCustomResponseAlert (ChnlLabelChangeAlert,
                                    "4", NULL, NULL, NewChnlLabel, 4, NULL);
                    if (ButtonPressed == 0)
                    {
                        StrCopy (AppPrefs.ChnlLabel[4], NewChnlLabel);
                        CtlSetLabel (GetObjectPtr(frmMainCh4LabelButton),
                                     AppPrefs.ChnlLabel[4]);
                    }
                    bHandled = true;
                    break;
                case frmMainCh3LabelButton:
                    ButtonPressed = FrmCustomResponseAlert (ChnlLabelChangeAlert,
                                    "3", NULL, NULL, NewChnlLabel, 4, NULL);
                    if (ButtonPressed == 0)
                    {
                        StrCopy (AppPrefs.ChnlLabel[3], NewChnlLabel);
                        CtlSetLabel (GetObjectPtr(frmMainCh3LabelButton),
                                     AppPrefs.ChnlLabel[3]);
                    }
                    bHandled = true;
                    break;
                case frmMainCh2LabelButton:
                    ButtonPressed = FrmCustomResponseAlert (ChnlLabelChangeAlert,
                                    "2", NULL, NULL, NewChnlLabel, 4, NULL);
                    if (ButtonPressed == 0)
                    {
                        StrCopy (AppPrefs.ChnlLabel[2], NewChnlLabel);
                        CtlSetLabel (GetObjectPtr(frmMainCh2LabelButton),
                                     AppPrefs.ChnlLabel[2]);
                    }
                    bHandled = true;
                    break;
                case frmMainCh1LabelButton:
                    ButtonPressed = FrmCustomResponseAlert (ChnlLabelChangeAlert,
                                    "1", NULL, NULL, NewChnlLabel, 4, NULL);
                    if (ButtonPressed == 0)
                    {
                        StrCopy (AppPrefs.ChnlLabel[1], NewChnlLabel);
                        CtlSetLabel (GetObjectPtr(frmMainCh1LabelButton),
                                     AppPrefs.ChnlLabel[1]);
                    }
                    bHandled = true;
                    break;
                case frmMainCh0LabelButton:
                    ButtonPressed = FrmCustomResponseAlert (ChnlLabelChangeAlert,
                                    "0", NULL, NULL, NewChnlLabel, 4, NULL);
                    if (ButtonPressed == 0)
                    {
                        StrCopy (AppPrefs.ChnlLabel[0], NewChnlLabel);
                        CtlSetLabel (GetObjectPtr(frmMainCh0LabelButton),
                                     AppPrefs.ChnlLabel[0]);
                    }
                    bHandled = true;
                    break;
                case frmMainStartGraphicButton:
                    StartAcquisition();
                    break;
                case frmMainStopGraphicButton:
                    StopAcquisition();
                    break;
            }
            break;

        case nilEvent:
            if (PlotData.AcquisitionInProcess == true)
            {
                sbioReadRunState (&RunState);
                if (RunState.bRunStop == false)
                {
                    PlotData.TrigDataBuffOffset = RunState.uiTrigOffset;
                    PlotData.bTrigInHiByte = RunState.bTrigWordHiByte;
                    PlotData.AcquisitionInProcess = false;