exceptio.cpp

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// $Id: exceptio.cpp 1464 2006-07-18 12:32:26Z gerry $
/* @@tag:xara-cn@@ DO NOT MODIFY THIS LINE
================================XARAHEADERSTART===========================
 
               Xara LX, a vector drawing and manipulation program.
                    Copyright (C) 1993-2006 Xara Group Ltd.
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              respective authors. See AUTHORS file for details.

LICENSE TO USE AND MODIFY SOFTWARE
----------------------------------

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=================================XARAHEADEREND============================
 */

// OpException class used to test exception handling code.



#include "camtypes.h"
#include "exceptio.h"
//#include "andy.h"
//#include "alex.h"
//#include "errors.h" - in camtypes.h [AUTOMATICALLY REMOVED]
//#include "docview.h" - in camtypes.h [AUTOMATICALLY REMOVED]

DECLARE_SOURCE("$Revision: 1464 $");


LPBYTE OpException::lpByte = NULL;
INT32 OpException::iZero[2];
double OpException::dZero[2];
BOOL OpException::RenderTrap = FALSE;
static BYTE GlobalByte;


CC_IMPLEMENT_DYNCREATE(OpException, Operation)

// Declare smart memory handling in Debug builds
#define new CAM_DEBUG_NEW

/*******************************************************************

>   void OpException::Do(OpDescriptor*)

    Author:     Andy_Pennell (Xara Group Ltd) <camelotdev@xara.com>
    Created:    20/10/93
    Inputs:     None
    Outputs:    None
    Returns:    None
    Purpose:    Creates various types of exceptions to verify exception handling.
    Errors:     -

*******************************************************************/


void OpException::Do(OpDescriptor* WhichOp)
{
    if (WhichOp->Token == String( OPTOKEN_EXCEPTION_PTR) )
        GlobalByte = *lpByte;
    else if (WhichOp->Token == String( OPTOKEN_EXCEPTION_INT ) )
        iZero[1] = 1 / iZero[0];
    else if (WhichOp->Token == String( OPTOKEN_EXCEPTION_DBL ) )
        dZero[1] = 1 / dZero[0];                                    
    else
    {
        DocView *pDocView = DocView::GetSelected();
        if (pDocView != NULL)
        {
            pDocView->ForceRedraw();                                        // posts the paint message
            CWindowID pWnd = DocView::GetCurrentRenderWindow();
            if (pWnd)
            {
                // Set trap for later
                RenderTrap = TRUE;                                      
                // Now do the paint
                TRACE( _T("Into update explosion\n"));
                pWnd->Update();                                     // do the paint
                TRACE( _T("Out of update explosion\n"));
            }
        }
    }
}


/*******************************************************************

>   OpException::OpException()

    Author:     Andy_Pennell (Xara Group Ltd) <camelotdev@xara.com>
    Created:    20/10/93
    Inputs:
    Outputs:
    Returns:
    Purpose:    Constructor for OpException operation. It is not undoable.
    Errors:     None

*******************************************************************/

OpException::OpException()
{
}



/*******************************************************************

>   OpState OpException::GetState(String_256*, OpDescriptor*)

    Author:     Andy_Pennell (Xara Group Ltd) <camelotdev@xara.com>
    Created:    20/10/93
    Inputs:
    Outputs:
    Returns:
    Purpose:    This item is always available.
    Errors:     None

*******************************************************************/

OpState OpException::GetState(String_256*, OpDescriptor*)
{
    OpState OpSt;

    return OpSt;
}


/*******************************************************************

>   BOOL OpException::Init()

    Author:     Andy_Pennell (Xara Group Ltd) <camelotdev@xara.com>
    Created:    20/10/93
    Inputs:
    Outputs:
    Returns:    TRUE if worked, FALSE if not.
    Purpose:    This item is always available.
    Errors:     Uses SetError if fails.
    Scope:      Static

*******************************************************************/

BOOL OpException::Init()
{

    OpDescriptor *OpEx[4];
    
    OpEx[0] = new OpDescriptor( 0,
                            _R(IDM_CRASHME_PTR),
                            CC_RUNTIME_CLASS(OpException),
                            OPTOKEN_EXCEPTION_PTR,
                            OpException::GetState
                                            );

    OpEx[1] = new OpDescriptor(
                            0,
                            _R(IDM_CRASHME_INT),
                            CC_RUNTIME_CLASS(OpException),
                            OPTOKEN_EXCEPTION_INT,
                            OpException::GetState
                                            );

    OpEx[2] = new OpDescriptor( 
                            0,
                            _R(IDM_CRASHME_DBL),
                            CC_RUNTIME_CLASS(OpException),
                            OPTOKEN_EXCEPTION_DBL,
                            OpException::GetState
                                            );

    OpEx[3] = new OpDescriptor( 
                            0,
                            _R(IDM_CRASHME_REN),
                            CC_RUNTIME_CLASS(OpException),
                            OPTOKEN_EXCEPTION_REN,
                            OpException::GetState
                                            );


    if (!( OpEx[0] && OpEx[1] && OpEx[2] && OpEx[3]))
        return FALSE;

    return TRUE;
}

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