// $Id: nodeclip.h 1282 2006-06-09 09:46:49Z alex $ /* @@tag:xara-cn@@ DO NOT MODIFY THIS LINE ================================XARAHEADERSTART=========================== Xara LX, a vector drawing and manipulation program. Copyright (C) 1993-2006 Xara Group Ltd. Copyright on certain contributions may be held in joint with their respective authors. See AUTHORS file for details. LICENSE TO USE AND MODIFY SOFTWARE ---------------------------------- This file is part of Xara LX. Xara LX is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License version 2 as published by the Free Software Foundation. Xara LX and its component source files are 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. 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Xara Group Ltd, Gaddesden Place, Hemel Hempstead, HP2 6EX, UK. http://www.xara.com/ =================================XARAHEADEREND============================ */ // // Declaration of NodeClipView. // #ifndef INC_NODECLIP #define INC_NODECLIP //#include "node.h" // derivation from NodeRenderableInk. - in camtypes.h [AUTOMATICALLY REMOVED] #include "clipattr.h" // for our ClipRegionAttribute member. /******************************************************************************************** > class NodeClipView : public NodeRenderableInk Author: Karim_MacDonald (Xara Group Ltd) Created: 10 February 2000 Purpose: ClipView node. This node works in tandem with NodeClipViewController to provide clipview functionality. It sits underneath a NodeClipViewController, between the keyhole node and the clipped nodes, so that it is rendered after the keyhole node. Its Render() method saves GDraw's current clipping region and applies a new region, derived from the keyhole node's outline. See also: ********************************************************************************************/ class NodeClipView : public NodeRenderableInk { // Give my name out in memory dumps. CC_DECLARE_DYNCREATE(NodeClipView); // we don't mind NodeClipViewController accessing our protected methods. friend class NodeClipViewController; //friend class ClipRegionAttribute; public: // construction/destruction and initialisation. NodeClipView(); NodeClipView( Node* pContextNode, AttachNodeDirection Direction, BOOL Locked = FALSE, BOOL Mangled = FALSE, BOOL Marked = FALSE, BOOL Selected = FALSE ); ~NodeClipView(); // virtual ID function. virtual BOOL IsANodeClipView() const { return TRUE; } // bounding information. virtual DocRect GetBoundingRect(BOOL DontUseAttrs = FALSE, BOOL HitTest = FALSE); virtual DocRect GetBlobBoundingRect(); // render this node. virtual SubtreeRenderState RenderSubtree(RenderRegion* pRender, Node** ppNextNode = NULL, BOOL bClip = TRUE); virtual void Render(RenderRegion* pRender); void RenderClipAttr(RenderRegion* pRender); virtual void RenderEorDrag( RenderRegion* pRender ); // we don't want to ever have any children, so we reject all attributes out of hand. virtual BOOL RequiresAttrib(CCRuntimeClass * , BOOL ) { return FALSE; } virtual BOOL RequiresAttrib(NodeAttribute * , BOOL ) { return FALSE; } virtual BOOL CanAttrBeAppliedToMe(CCRuntimeClass* AttrType) { return FALSE; } // return a description, for use in menus, infobar etc. virtual String Describe(BOOL Plural, BOOL Verbose); // get the size of this node. virtual UINT32 GetNodeSize() const; // transform this node. void Transform(TransformBase &Trans); // Version 2 file format functions virtual BOOL WritePreChildrenWeb(BaseCamelotFilter* pFilter); virtual BOOL WritePreChildrenNative(BaseCamelotFilter* pFilter); // called on nodes after a document is imported. virtual BOOL PostImport(); virtual void PolyCopyNodeContents(NodeRenderable* pNodeCopy); protected: ///////////////////////////////////////////////////////////////////////////////////////// // // ClipView-specific methods. // // set GDraw'c clipping region to, and restore it back over, the path of our keyhole node. void SetGDrawClippingRegion(RenderRegion* pRender); BOOL RestoreGDrawClippingRegion(BOOL fFirstInRenderLoop = FALSE); // this allows our NCVC to give us a path to clip to. void SetClipPath(Path* pClipPath) { m_ClipRegionAttribute.SetClipPath(pClipPath); } // copy methods. (Q: is there a reason why CopyNodeContents() is not virtual?) // Phil 19/12/2003 A: Yes. Because it takes a typed input parameter // However, I have just added PolyCopyNodeContents which takes a NodeRenderable* virtual Node* SimpleCopy(); void CopyNodeContents(NodeClipView* pNodeCopy); ///////////////////////////////////////////////////////////////////////////////////////////// // // Member variables // private: BOOL m_bRenderingForward; BYTE * m_pRegion; GCONTEXT * m_pContext; CONST REGION * m_pSavedRegion; BOOL m_bGDrawClipRegionSet; RECT m_SavedClipRect; private: ClipRegionAttribute m_ClipRegionAttribute; }; #endif // INC_NODECLIP