--- /dev/null
+/////////////////////////////////////////////////////////////////////////////
+// Name: automtn.cpp
+// Purpose: OLE automation utilities
+// Author: Julian Smart
+// Modified by:
+// Created: 11/6/98
+// RCS-ID: $Id$
+// Copyright: (c) 1998, Julian Smart
+// Licence: wxWindows Licence
+/////////////////////////////////////////////////////////////////////////////
+
+#ifdef __GNUG__
+#pragma implementation "automtn.h"
+#endif
+
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
+#if defined(__BORLANDC__)
+#pragma hdrstop
+#endif
+
+#include "wx/log.h"
+#include "wx/msw/ole/automtn.h"
+
+#include <windows.h>
+#include <ole2ver.h>
+#include <oleauto.h>
+#include <math.h>
+#include <time.h>
+
+// Convert string to Unicode
+static BSTR ConvertStringToOle(const wxString& str);
+
+// Convert string from BSTR to wxString
+static wxString ConvertStringFromOle(BSTR bStr);
+
+// Verifies will fail if the needed buffer size is too large
+#define MAX_TIME_BUFFER_SIZE 128 // matches that in timecore.cpp
+#define MIN_DATE (-657434L) // about year 100
+#define MAX_DATE 2958465L // about year 9999
+
+// Half a second, expressed in days
+#define HALF_SECOND (1.0/172800.0)
+
+// One-based array of days in year at month start
+static int rgMonthDays[13] =
+ {0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365};
+
+static BOOL OleDateFromTm(WORD wYear, WORD wMonth, WORD wDay,
+ WORD wHour, WORD wMinute, WORD wSecond, DATE& dtDest);
+static BOOL TmFromOleDate(DATE dtSrc, struct tm& tmDest);
+static void TmConvertToStandardFormat(struct tm& tmSrc);
+static double DoubleFromDate(DATE dt);
+static DATE DateFromDouble(double dbl);
+
+static void ClearVariant(VARIANTARG *pvarg) ;
+static void ReleaseVariant(VARIANTARG *pvarg) ;
+// static void ShowException(LPOLESTR szMember, HRESULT hr, EXCEPINFO *pexcep, unsigned int uiArgErr);
+
+/*
+ * wxAutomationObject
+ */
+
+wxAutomationObject::wxAutomationObject(WXIDISPATCH* dispatchPtr)
+{
+ m_dispatchPtr = dispatchPtr;
+}
+
+wxAutomationObject::~wxAutomationObject()
+{
+ if (m_dispatchPtr)
+ {
+ ((IDispatch*)m_dispatchPtr)->Release();
+ m_dispatchPtr = NULL;
+ }
+}
+
+#define INVOKEARG(i) (args ? args[i] : *(ptrArgs[i]))
+
+// For Put/Get, no named arguments are allowed.
+bool wxAutomationObject::Invoke(const wxString& member, int action,
+ wxVariant& retValue, int noArgs, wxVariant args[], const wxVariant* ptrArgs[]) const
+{
+ if (!m_dispatchPtr)
+ return FALSE;
+
+ // nonConstMember is necessary because the wxString class doesn't have enough consts...
+ wxString nonConstMember(member);
+
+ int ch = nonConstMember.Find('.');
+ if (ch != -1)
+ {
+ // Use dot notation to get the next object
+ wxString member2(nonConstMember.Left((size_t) ch));
+ wxString rest(nonConstMember.Right(nonConstMember.Length() - ch - 1));
+ wxAutomationObject obj;
+ if (!GetObject(obj, member2))
+ return FALSE;
+ return obj.Invoke(rest, action, retValue, noArgs, args, ptrArgs);
+ }
+
+ VARIANTARG vReturn;
+ ClearVariant(& vReturn);
+
+ VARIANTARG* vReturnPtr = & vReturn;
+
+ // Find number of names args
+ int namedArgCount = 0;
+ int i;
+ for (i = 0; i < noArgs; i++)
+ if (!INVOKEARG(i).GetName().IsNull())
+ {
+ namedArgCount ++;
+ }
+
+ int namedArgStringCount = namedArgCount + 1;
+ BSTR* argNames = new BSTR[namedArgStringCount];
+ argNames[0] = ConvertStringToOle(member);
+
+ // Note that arguments are specified in reverse order
+ // (all totally logical; hey, we're dealing with OLE here.)
+
+ int j = 0;
+ for (i = 0; i < namedArgCount; i++)
+ {
+ if (!INVOKEARG(i).GetName().IsNull())
+ {
+ argNames[(namedArgCount-j)] = ConvertStringToOle(INVOKEARG(i).GetName());
+ j ++;
+ }
+ }
+
+ // + 1 for the member name, + 1 again in case we're a 'put'
+ DISPID* dispIds = new DISPID[namedArgCount + 2];
+
+ HRESULT hr;
+ DISPPARAMS dispparams;
+ unsigned int uiArgErr;
+ EXCEPINFO excep;
+
+ // Get the IDs for the member and its arguments. GetIDsOfNames expects the
+ // member name as the first name, followed by argument names (if any).
+ hr = ((IDispatch*)m_dispatchPtr)->GetIDsOfNames(IID_NULL, argNames,
+ 1 + namedArgCount, LOCALE_SYSTEM_DEFAULT, dispIds);
+ if (FAILED(hr))
+ {
+// ShowException(szMember, hr, NULL, 0);
+ return FALSE;
+ }
+
+ // if doing a property put(ref), we need to adjust the first argument to have a
+ // named arg of DISPID_PROPERTYPUT.
+ if (action & (DISPATCH_PROPERTYPUT | DISPATCH_PROPERTYPUTREF))
+ {
+ namedArgCount = 1;
+ dispIds[1] = DISPID_PROPERTYPUT;
+ vReturnPtr = (VARIANTARG*) NULL;
+ }
+
+ // Convert the wxVariants to VARIANTARGs
+ VARIANTARG* oleArgs = new VARIANTARG[noArgs];
+ for (i = 0; i < noArgs; i++)
+ {
+ // Again, reverse args
+ wxVariant& theVariant = INVOKEARG((noArgs-1) - i);
+ if (!ConvertVariantToOle(theVariant, oleArgs[i]))
+ return FALSE; // TODO: clean up memory at this point
+ }
+
+ dispparams.rgdispidNamedArgs = dispIds + 1;
+ dispparams.rgvarg = oleArgs;
+ dispparams.cArgs = noArgs;
+ dispparams.cNamedArgs = namedArgCount;
+
+ excep.pfnDeferredFillIn = NULL;
+
+ hr = ((IDispatch*)m_dispatchPtr)->Invoke(dispIds[0], IID_NULL, LOCALE_SYSTEM_DEFAULT,
+ action, &dispparams, vReturnPtr, &excep, &uiArgErr);
+
+ for (i = 0; i < namedArgStringCount; i++)
+ {
+ SysFreeString(argNames[i]);
+ }
+ delete[] argNames;
+ delete[] dispIds;
+
+ for (i = 0; i < noArgs; i++)
+ ReleaseVariant(& oleArgs[i]) ;
+ delete[] oleArgs;
+
+ if (FAILED(hr))
+ {
+ // display the exception information if appropriate:
+// ShowException((const char*) member, hr, &excep, uiArgErr);
+
+ // free exception structure information
+ SysFreeString(excep.bstrSource);
+ SysFreeString(excep.bstrDescription);
+ SysFreeString(excep.bstrHelpFile);
+
+ if (vReturnPtr)
+ ReleaseVariant(vReturnPtr);
+ return FALSE;
+ }
+ else
+ {
+ if (vReturnPtr)
+ {
+ // Convert result to wxVariant form
+ ConvertOleToVariant(vReturn, retValue);
+ // Mustn't release the dispatch pointer
+ if (vReturn.vt == VT_DISPATCH)
+ {
+ vReturn.pdispVal = (IDispatch*) NULL;
+ }
+ ReleaseVariant(& vReturn);
+ }
+ }
+ return TRUE;
+}
+
+// Invoke a member function
+wxVariant wxAutomationObject::CallMethod(const wxString& member, int noArgs, wxVariant args[])
+{
+ wxVariant retVariant;
+ if (!Invoke(member, DISPATCH_METHOD, retVariant, noArgs, args))
+ {
+ retVariant.MakeNull();
+ }
+ return retVariant;
+}
+
+wxVariant wxAutomationObject::CallMethod(const wxString& member,
+ const wxVariant& arg1, const wxVariant& arg2,
+ const wxVariant& arg3, const wxVariant& arg4,
+ const wxVariant& arg5, const wxVariant& arg6)
+{
+ const wxVariant** args = new const wxVariant*[6];
+ int i = 0;
+ if (!arg1.IsNull())
+ {
+ args[i] = & arg1;
+ i ++;
+ }
+ if (!arg2.IsNull())
+ {
+ args[i] = & arg2;
+ i ++;
+ }
+ if (!arg3.IsNull())
+ {
+ args[i] = & arg3;
+ i ++;
+ }
+ if (!arg4.IsNull())
+ {
+ args[i] = & arg4;
+ i ++;
+ }
+ if (!arg5.IsNull())
+ {
+ args[i] = & arg5;
+ i ++;
+ }
+ if (!arg6.IsNull())
+ {
+ args[i] = & arg6;
+ i ++;
+ }
+ wxVariant retVariant;
+ if (!Invoke(member, DISPATCH_METHOD, retVariant, i, NULL, args))
+ {
+ retVariant.MakeNull();
+ }
+ delete[] args;
+ return retVariant;
+}
+
+// Get/Set property
+wxVariant wxAutomationObject::GetProperty(const wxString& property, int noArgs, wxVariant args[]) const
+{
+ wxVariant retVariant;
+ if (!Invoke(property, DISPATCH_PROPERTYGET, retVariant, noArgs, args))
+ {
+ retVariant.MakeNull();
+ }
+ return retVariant;
+}
+
+wxVariant wxAutomationObject::GetProperty(const wxString& property,
+ const wxVariant& arg1, const wxVariant& arg2,
+ const wxVariant& arg3, const wxVariant& arg4,
+ const wxVariant& arg5, const wxVariant& arg6)
+{
+ const wxVariant** args = new const wxVariant*[6];
+ int i = 0;
+ if (!arg1.IsNull())
+ {
+ args[i] = & arg1;
+ i ++;
+ }
+ if (!arg2.IsNull())
+ {
+ args[i] = & arg2;
+ i ++;
+ }
+ if (!arg3.IsNull())
+ {
+ args[i] = & arg3;
+ i ++;
+ }
+ if (!arg4.IsNull())
+ {
+ args[i] = & arg4;
+ i ++;
+ }
+ if (!arg5.IsNull())
+ {
+ args[i] = & arg5;
+ i ++;
+ }
+ if (!arg6.IsNull())
+ {
+ args[i] = & arg6;
+ i ++;
+ }
+ wxVariant retVariant;
+ if (!Invoke(property, DISPATCH_PROPERTYGET, retVariant, i, NULL, args))
+ {
+ retVariant.MakeNull();
+ }
+ delete[] args;
+ return retVariant;
+}
+
+bool wxAutomationObject::PutProperty(const wxString& property, int noArgs, wxVariant args[])
+{
+ wxVariant retVariant;
+ if (!Invoke(property, DISPATCH_PROPERTYPUT, retVariant, noArgs, args))
+ {
+ return FALSE;
+ }
+ return TRUE;
+}
+
+bool wxAutomationObject::PutProperty(const wxString& property,
+ const wxVariant& arg1, const wxVariant& arg2,
+ const wxVariant& arg3, const wxVariant& arg4,
+ const wxVariant& arg5, const wxVariant& arg6)
+{
+ const wxVariant** args = new const wxVariant*[6];
+ int i = 0;
+ if (!arg1.IsNull())
+ {
+ args[i] = & arg1;
+ i ++;
+ }
+ if (!arg2.IsNull())
+ {
+ args[i] = & arg2;
+ i ++;
+ }
+ if (!arg3.IsNull())
+ {
+ args[i] = & arg3;
+ i ++;
+ }
+ if (!arg4.IsNull())
+ {
+ args[i] = & arg4;
+ i ++;
+ }
+ if (!arg5.IsNull())
+ {
+ args[i] = & arg5;
+ i ++;
+ }
+ if (!arg6.IsNull())
+ {
+ args[i] = & arg6;
+ i ++;
+ }
+ wxVariant retVariant;
+ bool ret = Invoke(property, DISPATCH_PROPERTYPUT, retVariant, i, NULL, args);
+ delete[] args;
+ return ret;
+}
+
+
+// Uses DISPATCH_PROPERTYGET
+// and returns a dispatch pointer. The calling code should call Release
+// on the pointer, though this could be implicit by constructing an wxAutomationObject
+// with it and letting the destructor call Release.
+WXIDISPATCH* wxAutomationObject::GetDispatchProperty(const wxString& property, int noArgs, wxVariant args[]) const
+{
+ wxVariant retVariant;
+ if (Invoke(property, DISPATCH_PROPERTYGET, retVariant, noArgs, args))
+ {
+ if (retVariant.GetType() == "void*")
+ {
+ return (WXIDISPATCH*) retVariant.GetVoidPtr();
+ }
+ else
+ {
+ return (WXIDISPATCH*) NULL;
+ }
+ }
+ else
+ return (WXIDISPATCH*) NULL;
+}
+
+// A way of initialising another wxAutomationObject with a dispatch object
+bool wxAutomationObject::GetObject(wxAutomationObject& obj, const wxString& property, int noArgs, wxVariant args[]) const
+{
+ WXIDISPATCH* dispatch = GetDispatchProperty(property, noArgs, args);
+ if (dispatch)
+ {
+ obj.SetDispatchPtr(dispatch);
+ return TRUE;
+ }
+ else
+ return FALSE;
+}
+
+// Get a dispatch pointer from the current object associated
+// with a class id
+bool wxAutomationObject::GetInstance(const wxString& classId) const
+{
+ if (m_dispatchPtr)
+ return FALSE;
+
+ CLSID clsId;
+ IUnknown * pUnk = NULL;
+
+ BasicString unicodeName((const char*) classId);
+
+ if (FAILED(CLSIDFromProgID((BSTR) unicodeName, &clsId)))
+ {
+ wxLogWarning("Cannot obtain CLSID from ProgID");
+ return FALSE;
+ }
+
+ if (FAILED(GetActiveObject(clsId, NULL, &pUnk)))
+ {
+ wxLogWarning("Cannot find an active object");
+ return FALSE;
+ }
+
+ if (pUnk->QueryInterface(IID_IDispatch, (LPVOID*) &m_dispatchPtr) != S_OK)
+ {
+ wxLogWarning("Cannot find IDispatch interface");
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+// Get a dispatch pointer from a new object associated
+// with the given class id
+bool wxAutomationObject::CreateInstance(const wxString& classId) const
+{
+ if (m_dispatchPtr)
+ return FALSE;
+
+ CLSID clsId;
+ IUnknown * pUnk = NULL;
+
+ BasicString unicodeName((const char*) classId);
+
+ if (FAILED(CLSIDFromProgID((BSTR) unicodeName, &clsId)))
+ {
+ wxLogWarning("Cannot obtain CLSID from ProgID");
+ return FALSE;
+ }
+
+ // start a new copy of Excel, grab the IDispatch interface
+ if (FAILED(CoCreateInstance(clsId, NULL, CLSCTX_LOCAL_SERVER, IID_IDispatch, (void**)&m_dispatchPtr)))
+ {
+ wxLogWarning("Cannot start an instance of this class.");
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+
+bool wxAutomationObject::ConvertVariantToOle(const wxVariant& variant, VARIANTARG& oleVariant)
+{
+ ClearVariant(&oleVariant);
+ if (variant.IsNull())
+ {
+ oleVariant.vt = VT_NULL;
+ return TRUE;
+ }
+
+ wxString type(variant.GetType());
+
+ if (type == "long")
+ {
+ oleVariant.vt = VT_I4;
+ oleVariant.lVal = variant.GetLong() ;
+ }
+ else if (type == "double")
+ {
+ oleVariant.vt = VT_R8;
+ oleVariant.dblVal = variant.GetDouble();
+ }
+ else if (type == "bool")
+ {
+ oleVariant.vt = VT_BOOL;
+ oleVariant.boolVal = variant.GetBool();
+ }
+ else if (type == "string")
+ {
+ wxString str( variant.GetString() );
+ oleVariant.vt = VT_BSTR;
+ oleVariant.bstrVal = ConvertStringToOle(str);
+ }
+ else if (type == "date")
+ {
+ wxDate date( variant.GetDate() );
+ oleVariant.vt = VT_DATE;
+
+ if (!OleDateFromTm(date.GetYear(), date.GetMonth(), date.GetDay(),
+ 0, 0, 0, oleVariant.date))
+ return FALSE;
+ }
+ else if (type == "time")
+ {
+ wxTime time( variant.GetTime() );
+ oleVariant.vt = VT_DATE;
+
+ if (!OleDateFromTm(time.GetYear(), time.GetMonth(), time.GetDay(),
+ time.GetHour(), time.GetMinute(), time.GetSecond(), oleVariant.date))
+ return FALSE;
+ }
+ else if (type == "void*")
+ {
+ oleVariant.vt = VT_DISPATCH;
+ oleVariant.pdispVal = (IDispatch*) variant.GetVoidPtr();
+ }
+ else if (type == "list" || type == "stringlist")
+ {
+ oleVariant.vt = VT_VARIANT | VT_ARRAY;
+
+ SAFEARRAY *psa;
+ SAFEARRAYBOUND saBound;
+ VARIANTARG *pvargBase;
+ VARIANTARG *pvarg;
+ int i, j;
+
+ int iCount = variant.GetCount();
+
+ saBound.lLbound = 0;
+ saBound.cElements = iCount;
+
+ psa = SafeArrayCreate(VT_VARIANT, 1, &saBound);
+ if (psa == NULL)
+ return FALSE;
+
+ SafeArrayAccessData(psa, (void**)&pvargBase);
+
+ pvarg = pvargBase;
+ for (i = 0; i < iCount; i++)
+ {
+ // copy each string in the list of strings
+ wxVariant eachVariant(variant[i]);
+ if (!ConvertVariantToOle(eachVariant, * pvarg))
+ {
+ // memory failure: back out and free strings alloc'ed up to
+ // now, and then the array itself.
+ pvarg = pvargBase;
+ for (j = 0; j < i; j++)
+ {
+ SysFreeString(pvarg->bstrVal);
+ pvarg++;
+ }
+ SafeArrayDestroy(psa);
+ return FALSE;
+ }
+ pvarg++;
+ }
+
+ SafeArrayUnaccessData(psa);
+
+ oleVariant.parray = psa;
+ }
+ else
+ {
+ oleVariant.vt = VT_NULL;
+ return FALSE;
+ }
+ return TRUE;
+}
+
+#ifndef VT_TYPEMASK
+#define VT_TYPEMASK 0xfff
+#endif
+
+bool wxAutomationObject::ConvertOleToVariant(const VARIANTARG& oleVariant, wxVariant& variant)
+{
+ switch (oleVariant.vt & VT_TYPEMASK)
+ {
+ case VT_BSTR:
+ {
+ wxString str(ConvertStringFromOle(oleVariant.bstrVal));
+ variant = str;
+ break;
+ }
+ case VT_DATE:
+ {
+ struct tm tmTemp;
+ if (!TmFromOleDate(oleVariant.date, tmTemp))
+ return FALSE;
+
+ wxDate date(tmTemp.tm_yday, tmTemp.tm_mon, tmTemp.tm_year);
+ wxTime time(date, tmTemp.tm_hour, tmTemp.tm_min, tmTemp.tm_sec);
+
+ variant = time;
+ break;
+ }
+ case VT_I4:
+ {
+ variant = (long) oleVariant.lVal;
+ break;
+ }
+ case VT_I2:
+ {
+ variant = (long) oleVariant.iVal;
+ break;
+ }
+
+ case VT_BOOL:
+ {
+ variant = (bool) (oleVariant.boolVal != 0);
+ break;
+ }
+ case VT_R8:
+ {
+ variant = oleVariant.dblVal;
+ break;
+ }
+ case VT_ARRAY:
+ {
+ variant.ClearList();
+
+ int cDims, cElements, i;
+ VARIANTARG* pvdata;
+
+ // Iterate the dimensions: number of elements is x*y*z
+ for (cDims = 0, cElements = 1;
+ cDims < oleVariant.parray->cDims; cDims ++)
+ cElements *= oleVariant.parray->rgsabound[cDims].cElements;
+
+ // Get a pointer to the data
+ HRESULT hr = SafeArrayAccessData(oleVariant.parray, (void HUGEP* FAR*) & pvdata);
+ if (hr != NOERROR)
+ return FALSE;
+ // Iterate the data.
+ for (i = 0; i < cElements; i++)
+ {
+ VARIANTARG& oleElement = pvdata[i];
+ wxVariant vElement;
+ if (!ConvertOleToVariant(oleElement, vElement))
+ return FALSE;
+
+ variant.Append(vElement);
+ }
+ SafeArrayUnaccessData(oleVariant.parray);
+ break;
+ }
+ case VT_DISPATCH:
+ {
+ variant = (void*) oleVariant.pdispVal;
+ break;
+ }
+ case VT_NULL:
+ {
+ variant.MakeNull();
+ break;
+ }
+ default:
+ {
+ wxLogError("wxAutomationObject::ConvertOleToVariant: Unknown variant value type");
+ return FALSE;
+ }
+ }
+ return TRUE;
+}
+
+static BSTR ConvertStringToOle(const wxString& str)
+{
+/*
+ unsigned int len = strlen((const char*) str);
+ unsigned short* s = new unsigned short[len*2+2];
+ unsigned int i;
+ memset(s, 0, len*2+2);
+ for (i=0; i < len; i++)
+ s[i*2] = str[i];
+*/
+ BasicString bstr((const char*) str);
+ return bstr.Get();
+}
+
+static wxString ConvertStringFromOle(BSTR bStr)
+{
+ int len = SysStringLen(bStr) + 1;
+ char *buf = new char[len];
+ int i = wcstombs( buf, bStr, len);
+
+ wxString str(buf);
+ delete[] buf;
+ return str;
+}
+
+// ----------------------------------------------------------------------------
+// BasicString
+// ----------------------------------------------------------------------------
+
+// ctor takes an ANSI string and transforms it to Unicode
+BasicString::BasicString(const char *sz)
+{
+ // get the size of required buffer
+ UINT lenAnsi = strlen(sz);
+ UINT lenWide = mbstowcs(NULL, sz, lenAnsi);
+
+ if ( lenWide > 0 ) {
+ m_wzBuf = new OLECHAR[lenWide + 1];
+ mbstowcs(m_wzBuf, sz, lenAnsi);
+ m_wzBuf[lenWide] = L'\0';
+ }
+ else {
+ m_wzBuf = NULL;
+ }
+}
+
+// dtor frees memory
+BasicString::~BasicString()
+{
+ delete [] m_wzBuf;
+}
+
+/////////////////////////////////////////////////////////////////////////////
+// COleDateTime class HELPERS - implementation
+
+BOOL OleDateFromTm(WORD wYear, WORD wMonth, WORD wDay,
+ WORD wHour, WORD wMinute, WORD wSecond, DATE& dtDest)
+{
+ // Validate year and month (ignore day of week and milliseconds)
+ if (wYear > 9999 || wMonth < 1 || wMonth > 12)
+ return FALSE;
+
+ // Check for leap year and set the number of days in the month
+ BOOL bLeapYear = ((wYear & 3) == 0) &&
+ ((wYear % 100) != 0 || (wYear % 400) == 0);
+
+ int nDaysInMonth =
+ rgMonthDays[wMonth] - rgMonthDays[wMonth-1] +
+ ((bLeapYear && wDay == 29 && wMonth == 2) ? 1 : 0);
+
+ // Finish validating the date
+ if (wDay < 1 || wDay > nDaysInMonth ||
+ wHour > 23 || wMinute > 59 ||
+ wSecond > 59)
+ {
+ return FALSE;
+ }
+
+ // Cache the date in days and time in fractional days
+ long nDate;
+ double dblTime;
+
+ //It is a valid date; make Jan 1, 1AD be 1
+ nDate = wYear*365L + wYear/4 - wYear/100 + wYear/400 +
+ rgMonthDays[wMonth-1] + wDay;
+
+ // If leap year and it's before March, subtract 1:
+ if (wMonth <= 2 && bLeapYear)
+ --nDate;
+
+ // Offset so that 12/30/1899 is 0
+ nDate -= 693959L;
+
+ dblTime = (((long)wHour * 3600L) + // hrs in seconds
+ ((long)wMinute * 60L) + // mins in seconds
+ ((long)wSecond)) / 86400.;
+
+ dtDest = (double) nDate + ((nDate >= 0) ? dblTime : -dblTime);
+
+ return TRUE;
+}
+
+BOOL TmFromOleDate(DATE dtSrc, struct tm& tmDest)
+{
+ // The legal range does not actually span year 0 to 9999.
+ if (dtSrc > MAX_DATE || dtSrc < MIN_DATE) // about year 100 to about 9999
+ return FALSE;
+
+ long nDays; // Number of days since Dec. 30, 1899
+ long nDaysAbsolute; // Number of days since 1/1/0
+ long nSecsInDay; // Time in seconds since midnight
+ long nMinutesInDay; // Minutes in day
+
+ long n400Years; // Number of 400 year increments since 1/1/0
+ long n400Century; // Century within 400 year block (0,1,2 or 3)
+ long n4Years; // Number of 4 year increments since 1/1/0
+ long n4Day; // Day within 4 year block
+ // (0 is 1/1/yr1, 1460 is 12/31/yr4)
+ long n4Yr; // Year within 4 year block (0,1,2 or 3)
+ BOOL bLeap4 = TRUE; // TRUE if 4 year block includes leap year
+
+ double dblDate = dtSrc; // tempory serial date
+
+ // If a valid date, then this conversion should not overflow
+ nDays = (long)dblDate;
+
+ // Round to the second
+ dblDate += ((dtSrc > 0.0) ? HALF_SECOND : -HALF_SECOND);
+
+ nDaysAbsolute = (long)dblDate + 693959L; // Add days from 1/1/0 to 12/30/1899
+
+ dblDate = fabs(dblDate);
+ nSecsInDay = (long)((dblDate - floor(dblDate)) * 86400.);
+
+ // Calculate the day of week (sun=1, mon=2...)
+ // -1 because 1/1/0 is Sat. +1 because we want 1-based
+ tmDest.tm_wday = (int)((nDaysAbsolute - 1) % 7L) + 1;
+
+ // Leap years every 4 yrs except centuries not multiples of 400.
+ n400Years = (long)(nDaysAbsolute / 146097L);
+
+ // Set nDaysAbsolute to day within 400-year block
+ nDaysAbsolute %= 146097L;
+
+ // -1 because first century has extra day
+ n400Century = (long)((nDaysAbsolute - 1) / 36524L);
+
+ // Non-leap century
+ if (n400Century != 0)
+ {
+ // Set nDaysAbsolute to day within century
+ nDaysAbsolute = (nDaysAbsolute - 1) % 36524L;
+
+ // +1 because 1st 4 year increment has 1460 days
+ n4Years = (long)((nDaysAbsolute + 1) / 1461L);
+
+ if (n4Years != 0)
+ n4Day = (long)((nDaysAbsolute + 1) % 1461L);
+ else
+ {
+ bLeap4 = FALSE;
+ n4Day = (long)nDaysAbsolute;
+ }
+ }
+ else
+ {
+ // Leap century - not special case!
+ n4Years = (long)(nDaysAbsolute / 1461L);
+ n4Day = (long)(nDaysAbsolute % 1461L);
+ }
+
+ if (bLeap4)
+ {
+ // -1 because first year has 366 days
+ n4Yr = (n4Day - 1) / 365;
+
+ if (n4Yr != 0)
+ n4Day = (n4Day - 1) % 365;
+ }
+ else
+ {
+ n4Yr = n4Day / 365;
+ n4Day %= 365;
+ }
+
+ // n4Day is now 0-based day of year. Save 1-based day of year, year number
+ tmDest.tm_yday = (int)n4Day + 1;
+ tmDest.tm_year = n400Years * 400 + n400Century * 100 + n4Years * 4 + n4Yr;
+
+ // Handle leap year: before, on, and after Feb. 29.
+ if (n4Yr == 0 && bLeap4)
+ {
+ // Leap Year
+ if (n4Day == 59)
+ {
+ /* Feb. 29 */
+ tmDest.tm_mon = 2;
+ tmDest.tm_mday = 29;
+ goto DoTime;
+ }
+
+ // Pretend it's not a leap year for month/day comp.
+ if (n4Day >= 60)
+ --n4Day;
+ }
+
+ // Make n4DaY a 1-based day of non-leap year and compute
+ // month/day for everything but Feb. 29.
+ ++n4Day;
+
+ // Month number always >= n/32, so save some loop time */
+ for (tmDest.tm_mon = (n4Day >> 5) + 1;
+ n4Day > rgMonthDays[tmDest.tm_mon]; tmDest.tm_mon++);
+
+ tmDest.tm_mday = (int)(n4Day - rgMonthDays[tmDest.tm_mon-1]);
+
+DoTime:
+ if (nSecsInDay == 0)
+ tmDest.tm_hour = tmDest.tm_min = tmDest.tm_sec = 0;
+ else
+ {
+ tmDest.tm_sec = (int)nSecsInDay % 60L;
+ nMinutesInDay = nSecsInDay / 60L;
+ tmDest.tm_min = (int)nMinutesInDay % 60;
+ tmDest.tm_hour = (int)nMinutesInDay / 60;
+ }
+
+ return TRUE;
+}
+
+void TmConvertToStandardFormat(struct tm& tmSrc)
+{
+ // Convert afx internal tm to format expected by runtimes (_tcsftime, etc)
+ tmSrc.tm_year -= 1900; // year is based on 1900
+ tmSrc.tm_mon -= 1; // month of year is 0-based
+ tmSrc.tm_wday -= 1; // day of week is 0-based
+ tmSrc.tm_yday -= 1; // day of year is 0-based
+}
+
+double DoubleFromDate(DATE dt)
+{
+ // No problem if positive
+ if (dt >= 0)
+ return dt;
+
+ // If negative, must convert since negative dates not continuous
+ // (examples: -1.25 to -.75, -1.50 to -.50, -1.75 to -.25)
+ double temp = ceil(dt);
+ return temp - (dt - temp);
+}
+
+DATE DateFromDouble(double dbl)
+{
+ // No problem if positive
+ if (dbl >= 0)
+ return dbl;
+
+ // If negative, must convert since negative dates not continuous
+ // (examples: -.75 to -1.25, -.50 to -1.50, -.25 to -1.75)
+ double temp = floor(dbl); // dbl is now whole part
+ return temp + (temp - dbl);
+}
+
+/*
+ * ClearVariant
+ *
+ * Zeros a variant structure without regard to current contents
+ */
+static void ClearVariant(VARIANTARG *pvarg)
+{
+ pvarg->vt = VT_EMPTY;
+ pvarg->wReserved1 = 0;
+ pvarg->wReserved2 = 0;
+ pvarg->wReserved3 = 0;
+ pvarg->lVal = 0;
+}
+
+/*
+ * ReleaseVariant
+ *
+ * Clears a particular variant structure and releases any external objects
+ * or memory contained in the variant. Supports the data types listed above.
+ */
+static void ReleaseVariant(VARIANTARG *pvarg)
+{
+ VARTYPE vt;
+ VARIANTARG _huge *pvargArray;
+ long lLBound, lUBound, l;
+
+ vt = pvarg->vt & 0xfff; // mask off flags
+
+ // check if an array. If so, free its contents, then the array itself.
+ if (V_ISARRAY(pvarg))
+ {
+ // variant arrays are all this routine currently knows about. Since a
+ // variant can contain anything (even other arrays), call ourselves
+ // recursively.
+ if (vt == VT_VARIANT)
+ {
+ SafeArrayGetLBound(pvarg->parray, 1, &lLBound);
+ SafeArrayGetUBound(pvarg->parray, 1, &lUBound);
+
+ if (lUBound > lLBound)
+ {
+ lUBound -= lLBound;
+
+ SafeArrayAccessData(pvarg->parray, (void**)&pvargArray);
+
+ for (l = 0; l < lUBound; l++)
+ {
+ ReleaseVariant(pvargArray);
+ pvargArray++;
+ }
+
+ SafeArrayUnaccessData(pvarg->parray);
+ }
+ }
+ else
+ {
+ wxLogWarning("ReleaseVariant: Array contains non-variant type");
+ }
+
+ // Free the array itself.
+ SafeArrayDestroy(pvarg->parray);
+ }
+ else
+ {
+ switch (vt)
+ {
+ case VT_DISPATCH:
+ if (pvarg->pdispVal)
+ pvarg->pdispVal->Release();
+ break;
+
+ case VT_BSTR:
+ SysFreeString(pvarg->bstrVal);
+ break;
+
+ case VT_I2:
+ case VT_BOOL:
+ case VT_R8:
+ case VT_ERROR: // to avoid erroring on an error return from Excel
+ // no work for these types
+ break;
+
+ default:
+ wxLogWarning("ReleaseVariant: Unknown type");
+ break;
+ }
+ }
+
+ ClearVariant(pvarg);
+}
+
+#if 0
+
+void ShowException(LPOLESTR szMember, HRESULT hr, EXCEPINFO *pexcep, unsigned int uiArgErr)
+{
+ TCHAR szBuf[512];
+
+ switch (GetScode(hr))
+ {
+ case DISP_E_UNKNOWNNAME:
+ wsprintf(szBuf, L"%s: Unknown name or named argument.", szMember);
+ break;
+
+ case DISP_E_BADPARAMCOUNT:
+ wsprintf(szBuf, L"%s: Incorrect number of arguments.", szMember);
+ break;
+
+ case DISP_E_EXCEPTION:
+ wsprintf(szBuf, L"%s: Error %d: ", szMember, pexcep->wCode);
+ if (pexcep->bstrDescription != NULL)
+ lstrcat(szBuf, pexcep->bstrDescription);
+ else
+ lstrcat(szBuf, L"<<No Description>>");
+ break;
+
+ case DISP_E_MEMBERNOTFOUND:
+ wsprintf(szBuf, L"%s: method or property not found.", szMember);
+ break;
+
+ case DISP_E_OVERFLOW:
+ wsprintf(szBuf, L"%s: Overflow while coercing argument values.", szMember);
+ break;
+
+ case DISP_E_NONAMEDARGS:
+ wsprintf(szBuf, L"%s: Object implementation does not support named arguments.",
+ szMember);
+ break;
+
+ case DISP_E_UNKNOWNLCID:
+ wsprintf(szBuf, L"%s: The locale ID is unknown.", szMember);
+ break;
+
+ case DISP_E_PARAMNOTOPTIONAL:
+ wsprintf(szBuf, L"%s: Missing a required parameter.", szMember);
+ break;
+
+ case DISP_E_PARAMNOTFOUND:
+ wsprintf(szBuf, L"%s: Argument not found, argument %d.", szMember, uiArgErr);
+ break;
+
+ case DISP_E_TYPEMISMATCH:
+ wsprintf(szBuf, L"%s: Type mismatch, argument %d.", szMember, uiArgErr);
+ break;
+
+ default:
+ wsprintf(szBuf, L"%s: Unknown error occured.", szMember);
+ break;
+ }
+
+ wxLogWarning(szBuf);
+}
+
+#endif
+
projects / wxWidgets.git / commitdiff
