clipattr.cpp

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// $Id: clipattr.cpp 1361 2006-06-25 16:43:38Z alex $
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 */
//
// Implementation of ClipRegionAttribute.
//

#include "camtypes.h"   // pre-compiled header
#include "clipattr.h"   // our own header file
#include "grndrgn.h"    // for GRenderRegion.
//#include "mario.h"            // _R(IDE_NOMORE_MEMORY)
#include "blendatt.h"       // BlendAttrParam

DECLARE_SOURCE("$Revision: 1361 $")

// runtime class creation stuff.
CC_IMPLEMENT_DYNCREATE(ClipRegionAttribute, AttributeValue)
CC_IMPLEMENT_DYNAMIC(AttrClipView, NodeAttribute)

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



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

>   ClipRegionAttribute::ClipRegionAttribute()

    Author:     Karim_MacDonald (Xara Group Ltd) <camelotdev@xara.com>
    Created:    20 March 2000
    Inputs:     
    Outputs:    
    Returns:    
    Purpose:    
    Errors:     
    See also:   

********************************************************************************************/
ClipRegionAttribute::ClipRegionAttribute()
{
    m_pClipPath = NULL;
    m_bResponsibleForGrouping = FALSE;
}



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

>   ClipRegionAttribute::~ClipRegionAttribute()

    Author:     Karim_MacDonald (Xara Group Ltd) <camelotdev@xara.com>
    Created:    20 March 2000
    Inputs:     
    Outputs:    
    Returns:    
    Purpose:    
    Errors:     
    See also:   

********************************************************************************************/
ClipRegionAttribute::~ClipRegionAttribute()
{
    if (m_pClipPath != NULL)
        m_pClipPath = NULL;
}



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

>   virtual void ClipRegionAttribute::Render(RenderRegion* pRender, BOOL Temp = FALSE)

    Author:     Karim_MacDonald (Xara Group Ltd) <camelotdev@xara.com>
    Created:    20 March 2000
    Inputs:     
    Outputs:    
    Returns:    
    Purpose:    
    Errors:     
    See also:   

********************************************************************************************/
void ClipRegionAttribute::Render(RenderRegion* pRender, BOOL Temp)
{
// DEBUG:
//  TRACEUSER( "Karim", _T("ClipRegionAttribute::Render; 0x%x with path 0x%x\n"), (DWORD)this,
//                                                                          (DWORD)m_pClipPath);
//  TRACEUSER( "Karim", _T("pClipAttr 0x%x Render()'ed by RR 0x%x\n"),
//                                  (DWORD)this, (DWORD)pRender);
    pRender->SetClipRegion(this, Temp);
}



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

>   virtual void ClipRegionAttribute::Restore(RenderRegion* pRender, BOOL Temp)

    Author:     Karim_MacDonald (Xara Group Ltd) <camelotdev@xara.com>
    Created:    20 March 2000
    Inputs:     
    Outputs:    
    Returns:    
    Purpose:    
    Errors:     
    See also:   

********************************************************************************************/
void ClipRegionAttribute::Restore(RenderRegion* pRender, BOOL Temp)
{
// DEBUG:
//  TRACEUSER( "Karim", _T("ClipRegionAttribute::Restore; 0x%x with path 0x%x\n"), (DWORD)this,
//                                                                          (DWORD)m_pClipPath);
//  TRACEUSER( "Karim", _T("pClipAttr 0x%x Restore()'ed by RR 0x%x\n"),
//                                  (DWORD)this, (DWORD)pRender);
    pRender->RestoreClipRegion(this, Temp);
}



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

>   virtual void ClipRegionAttribute::GoingOutOfScope(RenderRegion* pRender)

    Author:     Karim_MacDonald (Xara Group Ltd) <camelotdev@xara.com>
    Created:    20 March 2000
    Inputs:     
    Outputs:    
    Returns:    
    Purpose:    
    Errors:     
    See also:   

********************************************************************************************/
void ClipRegionAttribute::GoingOutOfScope(RenderRegion* pRender)
{
// DEBUG:
//  TRACEUSER( "MarkH", _T("ClipRegionAttribute::GoingOutOfScope; 0x%x with path 0x%x\n"), (DWORD)this,
//                                                                          (DWORD)m_pClipPath);
}



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

>   virtual void ClipRegionAttribute::SimpleCopy(AttributeValue* pSource)

    Author:     Karim_MacDonald (Xara Group Ltd) <camelotdev@xara.com>
    Created:    20 March 2000
    Inputs:     pSource     the ClipRegionAttribute to copy.
    Outputs:    This ClipRegionAttribute becomes a copy of pSource.

    Purpose:    Make this attribute into a straight copy of the given attribute.

    Notes:      Note that NO error checking is done in this routine (bad?), so MAKE SURE
                that the pointer you pass in as pSource is a VALID ClipRegionAttribute.

********************************************************************************************/
void ClipRegionAttribute::SimpleCopy(AttributeValue* pSource)
{
// DEBUG:
//  TRACEUSER( "Karim", _T("ClipRegionAttribute::SimpleCopy; 0x%x with path 0x%x\n"), (DWORD)this,
//                                                                          (DWORD)m_pClipPath);
    m_pClipPath = ((ClipRegionAttribute*)pSource)->m_pClipPath;
}



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

>   NodeAttribute* AttributeValue::MakeNode()

    Author:     Karim_MacDonald (Xara Group Ltd) <camelotdev@xara.com>
    Created:    12 April 2000
    Returns:    NULL always.
    Purpose:    This method is here so that an AttributeValue can build and return a 
                corresponding NodeAttribute, for insertion into the tree. We don't do
                this, as we're not linked with NodeAttributes at all.

********************************************************************************************/
NodeAttribute* ClipRegionAttribute::MakeNode()
{
    return NULL;
}



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

>   virtual BOOL ClipRegionAttribute::IsDifferent(AttributeValue* pOther)

    Author:     Karim_MacDonald (Xara Group Ltd) <camelotdev@xara.com>
    Created:    20 March 2000
    Inputs:     
    Outputs:    
    Returns:    
    Purpose:    
    Errors:     
    See also:   

********************************************************************************************/
BOOL ClipRegionAttribute::IsDifferent(AttributeValue* pOther)
{
// DEBUG:
//  TRACEUSER( "Karim", _T("ClipRegionAttribute::IsDifferent; we are 0x%x\n"), (DWORD)this);
    ERROR2IF(   GetRuntimeClass() != pOther->GetRuntimeClass(), TRUE,
               "Attribute difference comparison must be between same types" );
    return (m_pClipPath != ((ClipRegionAttribute*)pOther)->GetClipPath());
}



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

>   static BOOL ClipRegionAttribute::Init()

    Author:     Karim_MacDonald (Xara Group Ltd) <camelotdev@xara.com>
    Created:    20 March 2000
    Inputs:     
    Outputs:    
    Returns:    
    Purpose:    
    Errors:     
    See also:   

********************************************************************************************/
BOOL ClipRegionAttribute::Init()
{
    ClipRegionAttribute* pAttrVal = NULL;
    pAttrVal = new ClipRegionAttribute;
    if (pAttrVal == NULL)
        return FALSE;

    UINT32 ID = AttributeManager::RegisterDefaultAttribute(CC_RUNTIME_CLASS(NodeRenderableInk),
                                                         pAttrVal);

    if (ID == ATTR_BAD_ID)
        return FALSE;

    ERROR3IF(ID != ATTR_CLIPREGION, "Incorrect ID for attribute!");
    return TRUE;
}

AttrClipView::AttrClipView()
{
    m_DoRender = TRUE;
    Value.SetResponsibleForGrouping (TRUE);
}

AttrClipView::AttrClipView(Node* ContextNode, AttachNodeDirection Direction,
                            BOOL Locked, BOOL Mangled, BOOL Marked, BOOL Selected) : 
                            NodeAttribute(ContextNode, Direction, Locked, Mangled, Marked, Selected)
{
    m_DoRender = TRUE;
    Value.SetResponsibleForGrouping (TRUE);
}

AttrClipView::~AttrClipView()
{
}

void AttrClipView::Render( RenderRegion* pRender )
{
    // check the pointer and also make sure that we`re allowed to render
    if (!pRender || !m_DoRender)
        return;

    // Don`t need to render when hit testing
    if(!pRender->IsHitDetect())
        Value.Render(pRender);
}

#ifdef _DEBUG
void AttrClipView::GetDebugDetails(StringBase* Str)
{
    // Get our base class debug info.
    NodeRenderable::GetDebugDetails(Str);

    // Output the data for our clipping path.
    Path* pClipPath = Value.GetClipPath();

    if (pClipPath == NULL)
    {
        (*Str) += TEXT( "\r\nNo Clipping Path Data\r\n" );
    }
    else
    {
        (*Str) += TEXT( "\r\nClipping Path Data\r\n" );
        pClipPath->GetDebugDetails(Str);
    }
}
#endif

Node* AttrClipView::SimpleCopy()
{
    AttrClipView* pAttr = new AttrClipView();
    ERRORIF(pAttr==NULL, _R(IDE_NOMORE_MEMORY),NULL);

    CopyNodeContents(pAttr);
    return pAttr;
}



/***********************************************************************************************
>   void AttrClipView::PolyCopyNodeContents(NodeRenderable* pNodeCopy)

    Author:     Phil_Martin (Xara Group Ltd) <camelotdev@xara.com>
    Created:    18/12/2003
    Outputs:    -
    Purpose:    Polymorphically copies the contents of this node to another
    Errors:     An assertion failure will occur if NodeCopy is NULL
    Scope:      protected
                                     
***********************************************************************************************/

void AttrClipView::PolyCopyNodeContents(NodeRenderable* pNodeCopy)
{
    ENSURE(pNodeCopy, "Trying to copy a node's contents into a NULL node");
    ENSURE(IS_A(pNodeCopy, AttrClipView), "PolyCopyNodeContents given wrong dest node type");

    if (IS_A(pNodeCopy, AttrClipView))
        CopyNodeContents((AttrClipView*)pNodeCopy);
}



void AttrClipView::CopyNodeContents(NodeAttribute *pCopy)
{
    NodeAttribute::CopyNodeContents(pCopy);
    ((AttrClipView*)pCopy)->Value.SimpleCopy( &Value );
}

INT32 AttrClipView::operator==(const NodeAttribute& NodeAttrib)
{
    Path* pComparePath = ((ClipRegionAttribute*)&NodeAttrib)->GetClipPath();
    Path* pThisPath = Value.GetClipPath();

    if(pComparePath && pThisPath)
    {
        return pThisPath->ComparePathToPath(pComparePath);
    }

    return -1;
}

void AttrClipView::Transform(TransformBase& Trans)
{
//  static const FIXED16 One(1.0);

//  FIXED16 ScaleFactor = Trans.GetScaleFactor();
}

BOOL AttrClipView::Blend(BlendAttrParam* pBlendParam)
{
    // Don`t want to blend this attribute at the mo!
    return FALSE;
}

BOOL AttrClipView::ContainsAttributeValue(AttributeValue* pVal)
{
    if(!pVal->IS_KIND_OF(ClipRegionAttribute))
    {
        ENSURE(FALSE,"Strange attr value comparison test requested");
        return FALSE;
    }

    return (pVal == &Value);
}

BOOL AttrClipView::WritePreChildrenWeb(BaseCamelotFilter* pFilter)
{
    return TRUE;
}

BOOL AttrClipView::WritePreChildrenNative(BaseCamelotFilter* pFilter)
{
    return TRUE;
}

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