common.c

OBD软件给Palm平台系统所使用范例程式.

// MobyPalm
// Copyright (C) 2005 Olivier Burgard

// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// the License, or (at your option) any later version.

// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

#include <PalmOS.h>
#include "Common.h"

static char* code = "0123456789ABCDEF";

void UpdateStatus(char *message) {
	RectangleType rect;

	rect.topLeft.x = 70;
	rect.topLeft.y = 2;
	rect.extent.x = 160 - rect.topLeft.x;
	rect.extent.y = 11;
	WinEraseRectangle(&rect, 0);
	if (message != NULL)
		WinPaintChars(message, StrLen(message), rect.topLeft.x, rect.topLeft.y);
}

void VerticalDraw(int x, int y, char* message) {
	int i;
	WinSetDrawMode(winOverlay);
	for (i=0; i<StrLen(message); i++) {
		WinPaintChars(message+i*sizeof(char), 1, x, y+i*7);	
	}
	WinSetDrawMode(winPaint);
}

void SetLabelText(UInt16 FrmID, UInt16 ObjID, char *text)
{
	FormType *frmP = FrmGetFormPtr(FrmID);
		FrmCopyLabel(frmP, ObjID, text);
}

void SetPopup(int listObjID, int popupObjID, char **list, int listSize, int selection)
{
  ControlPtr ctlP;
  FormType *pForm = FrmGetActiveForm();
  ListType* lstP = FrmGetObjectPtr(pForm, FrmGetObjectIndex(pForm, listObjID));
  LstSetListChoices(lstP, list, listSize);
  LstSetSelection(lstP, selection);
  LstMakeItemVisible(lstP, selection);
  ctlP = (ControlPtr)FrmGetObjectPtr(pForm, FrmGetObjectIndex(pForm, popupObjID));
  CtlSetLabel(ctlP, list[selection]);
}

void setFieldText(int FldID, char* txt){
	MemHandle h, oldHandle;
	char *p;
	FieldType* fldP;
	FormType* frmP;
 
	frmP = FrmGetActiveForm();
	h = MemHandleNew(50);
	p = (char *) MemHandleLock(h);
	StrCopy(p, txt);
	MemHandleResize(h, StrLen(p)+1);
	MemHandleUnlock(h);
	fldP = (FieldType *) FrmGetObjectPtr(frmP, FrmGetObjectIndex(frmP, FldID));
	oldHandle = FldGetTextHandle(fldP);
	FldSetTextHandle(fldP, h);
	if (oldHandle)
		MemHandleFree(oldHandle);
	FldDrawField(fldP);
}

char* GetSerialErrorText(Err err, char* szError)
{
	switch (err)
	{
	case serErrAlreadyOpen:
		StrCopy(szError,"Already Open");
		break;
	case serErrBadPort:
		StrCopy(szError,"This port doesn't exist");
		break;
	case serErrNotOpen:
		StrCopy(szError,"The port is not open");
		break;
	case serErrTimeOut:
		StrCopy(szError,"Timeout");
		break;
	case serErrNotSupported:
		StrCopy(szError,"Not supported");
		break;
	case serErrBadParam:
		StrCopy(szError,"Bad Param");
		break;
	case serErrLineErr:
		StrCopy(szError,"Line Error");
		break;
	case serErrNoDevicesAvail :
		StrCopy(szError,"No serial devices");
		break;
	default:
		StrCopy(szError,"Unknown error");
		break;
	}

	return szError;
}

void convertHexToChars(char hex[], int nbr, char dest[]) {
	int i;
	
	for (i=0; i<nbr; i++) {
    	dest[2*i] = code[(hex[i] >> 4) & 0x0f];
		dest[2*i+1] = code[(hex[i]) & 0x0f];	
    }
    
    dest[2*nbr]=0;
}