clipattr.h

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// $Id: clipattr.h 1282 2006-06-09 09:46:49Z alex $
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----------------------------------

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 */
//
// Declaration of ClipRegionAttribute.
//

#ifndef INC_CLIPATTR
#define INC_CLIPATTR

//#include "attrval.h"  // derivation from AttributeValue. - in camtypes.h [AUTOMATICALLY REMOVED]
//#include "paths.h"        // for Path member variable. - in camtypes.h [AUTOMATICALLY REMOVED]
//#include "clipres.h"

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

>   class ClipRegionAttribute : public AttributeValue

    Author:     Karim_MacDonald (Xara Group Ltd) <camelotdev@xara.com>
    Created:    20 March 2000
    Purpose:    

    See also:   

********************************************************************************************/
class ClipRegionAttribute : public AttributeValue
{
// Runtime class information.
CC_DECLARE_DYNCREATE(ClipRegionAttribute)

public:
    // construction/destruction
    ClipRegionAttribute();
    ~ClipRegionAttribute();

    // methods required for AttributeValue implementation
    virtual void Render(RenderRegion* pRender, BOOL Temp = FALSE);
    virtual void Restore(RenderRegion* pRender, BOOL Temp);
    virtual void GoingOutOfScope(RenderRegion* pRender);
    virtual void SimpleCopy(AttributeValue* pSource);
    virtual NodeAttribute* MakeNode();
    virtual BOOL IsDifferent(AttributeValue* pOther);

    // static initialisation function, to register this attribute with Camelot.
    static BOOL Init();

    // member access functions.
    Path*   GetClipPath() const { return m_pClipPath; }
    void    SetClipPath(Path* pClipPath) { m_pClipPath = pClipPath; }

//  not really sure what this is for...
//  virtual INT32 operator=(AttributeValue& Attrib) { return TRUE; }

    void    SetResponsibleForGrouping  (BOOL starts) { m_bResponsibleForGrouping = starts; }
    BOOL    IsResponsibleForGrouping () { return m_bResponsibleForGrouping; }

// member variables.
private:
    // the path which this attribute should cause output to be clipped to.
    Path*   m_pClipPath;
    BOOL    m_bResponsibleForGrouping;
};

class AttrClipView : public NodeAttribute
{
CC_DECLARE_DYNAMIC(AttrClipView)

public:
    AttrClipView();
    ~AttrClipView();
    AttrClipView(Node* ContextNode,  
                 AttachNodeDirection Direction,    
                 BOOL Locked=FALSE, 
                 BOOL Mangled=FALSE,  
                 BOOL Marked=FALSE, 
                 BOOL Selected=FALSE);

    // Traditional Node functionality
    virtual void Render( RenderRegion* pRender );

#ifdef _DEBUG
    void GetDebugDetails(StringBase* Str);
#endif

    // Traditional NodeAttribute functionality
    virtual AttributeValue* GetAttributeValue() { return &Value; }
    Node* SimpleCopy();
    virtual UINT32 GetAttrNameID() { return _R(IDS_CLIPVIEW_ATTR_ID); }
    virtual AttrIndex GetAttributeIndex () { return ATTR_CLIPVIEW; }
    virtual UINT32 GetNodeSize() { return sizeof(AttrClipView); }
    virtual INT32 operator==(const NodeAttribute& NodeAttrib);

    // Node charateristics tests
    virtual BOOL NeedsTransparency() const { return FALSE; }

    // prevent feathering in incompatible circumstances
    virtual SubtreeRenderState RenderSubtree(RenderRegion *pRender, Node** ppNextNode = NULL, BOOL bClip = TRUE) {return SUBTREE_ROOTONLY; }
    virtual BOOL IsAClipViewAttr() const { return TRUE; }

    // support layering and remove redundant attrs
    virtual BOOL CanBeMultiplyApplied() { return TRUE; }
    virtual BOOL ShouldBeOptimized() { return FALSE; }

    // dynamic attribute functions and flags
    virtual void Transform(TransformBase& Trans);
    virtual BOOL Blend(BlendAttrParam* pBlendParam);
    virtual BOOL ContainsAttributeValue(AttributeValue* pVal);

    // Version 2 file format functions
    virtual BOOL WritePreChildrenWeb(BaseCamelotFilter* pFilter);
    virtual BOOL WritePreChildrenNative(BaseCamelotFilter* pFilter);

    // New Function local to this attribute only!
    // It`s mainly used for turning the attribute off when exporting AI EPS
    void EnableRendering(BOOL DoEnableRendering = TRUE) { m_DoRender = DoEnableRendering; }
    
    // Small function which lets the caller find out if the attribute is disabled or not.
    BOOL GetRenderStatus() { return m_DoRender; }

    virtual void PolyCopyNodeContents(NodeRenderable* pNodeCopy);

private:
    void CopyNodeContents(NodeAttribute *pCopy);
    BOOL m_DoRender;

public:
    ClipRegionAttribute Value;
};


//-------------------------------------------------------------------------------------------
//-------------------------------------------------------------------------------------------
//-------------------------------------------------------------------------------------------
//-------------------------------------------------------------------------------------------



#endif  // INC_CLIPATTR

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