// $Id: nodedoc.cpp 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============================ */ // class NodeRenderableDocument which holds the whole document tree #include "camtypes.h" #include "nodedoc.h" //#include "errors.h" - in camtypes.h [AUTOMATICALLY REMOVED] //#include "mario.h" //#include "ensure.h" - in camtypes.h [AUTOMATICALLY REMOVED] #include "chapter.h" //#include "document.h" - in camtypes.h [AUTOMATICALLY REMOVED] CC_IMPLEMENT_DYNAMIC(NodeDocument, NodeRenderablePaper) // Declare smart memory handling in Debug builds #define new CAM_DEBUG_NEW /*********************************************************************************************** > NodeDocument::NodeDocument() Author: Simon_Maneggio (Xara Group Ltd) Created: 13/5/93 Inputs: - Outputs: Returns: - Purpose: This constructor creates a NodeDocument linked to no other nodes, with all status flags false, and NULL bounding and pasteboard rectangles. Errors: ***********************************************************************************************/ NodeDocument::NodeDocument(): NodeRenderablePaper() { pParentDoc = NULL; } /*********************************************************************************************** > NodeDocument::NodeDocument ( Node* ContextNode, AttachNodeDirection Direction, BOOL Locked = FALSE, BOOL Mangled = FALSE, BOOL Marked = FALSE, BOOL Selected = FALSE, ) Author: Simon_Maneggio (Xara Group Ltd) Created: 26/4/93 Inputs: ContextNode: Pointer to a node which this node is to be attached to. Direction: Specifies the direction in which this node is to be attached to the ContextNode. The values this variable can take are as follows: PREV : Attach node as a previous sibling of the context node NEXT : Attach node as a next sibling of the context node FIRSTCHILD: Attach node as the first child of the context node LASTCHILD : Attach node as a last child of the context node The remaining inputs specify the status of the node: Locked: Is node locked ? Mangled: Is node mangled ? Marked: Is node marked ? Selected: Is node selected ? Outputs: - Returns: - Purpose: This constructor initialises the node and links it to ContextNode in the direction specified by Direction. All neccesary tree links are updated. Errors: An assertion error will occur if ContextNode is NULL ***********************************************************************************************/ NodeDocument::NodeDocument(Node* ContextNode, AttachNodeDirection Direction, BOOL Locked, BOOL Mangled, BOOL Marked, BOOL Selected):NodeRenderablePaper(ContextNode, Direction, Locked, Mangled,Marked, Selected) { pParentDoc = NULL; } /*********************************************************************************************** > NodeDocument::~NodeDocument() Author: Jason_Williams (Xara Group Ltd) Created: 5/5/94 Inputs: - Outputs: - Returns: - Purpose: NodeDocument destructor. Errors: Notes: OK, so this does nothing. But it used to. I've just ripped out all the code again 3 months later... ***********************************************************************************************/ NodeDocument::~NodeDocument() { } /******************************************************************************************** > void NodeDocument::SetParentDoc(BaseDocument *pNewDoc) Author: Tim_Browse (Xara Group Ltd) Created: 14/02/95 Inputs: pNewDoc - the Document to attach to, or NULL if detaching. Purpose: Specify which Document object a NodeDocument object is attached to. This cannot be done again, unless this function is first called with NULL as the document to attachto. Errors: Already attached to a document => ERROR2 SeeAlso: NodeDocument::GetParentDoc ********************************************************************************************/ void NodeDocument::SetParentDoc(BaseDocument *pNewDoc) { if (pParentDoc != NULL) { // Error ERROR2RAW("NodeDocument is already attached to a Document!"); } else { // Attach document. pParentDoc = pNewDoc; } } /******************************************************************************************** > BaseDocument *NodeDocument::GetParentDoc() Author: Tim_Browse (Xara Group Ltd) Created: 14/02/95 Returns: The Document that this node is attached to, or NULL if not attached. Purpose: Find out which Document object a NodeDocument object is attached to. SeeAlso: NodeDocument::SetParentDoc ********************************************************************************************/ /******************************************************************************************** > BOOL NodeDocument::IsNodeDocument() const Author: Tim_Browse (Xara Group Ltd) Created: 15/02/95 Returns: TRUE - this is a NodeDocument. Purpose: Tell the caller that this is a NodeDocument. ********************************************************************************************/ BOOL NodeDocument::IsNodeDocument() const { // Yes, it's a NodeDocument return TRUE; } /*********************************************************************************************** > Node* NodeDocument::SimpleCopy() Author: Simon_Maneggio (Xara Group Ltd) Created: 28/5/93 Inputs: - Outputs: Returns: A copy of the node, or NULL if memory runs out Purpose: This method returns a shallow copy of the node with all Node pointers NULL. The function is virtual, and must be defined for all derived classes. Errors: If memory runs out when trying to copy, then ERROR is called with an out of memory error and the function returns NULL. Scope: protected ***********************************************************************************************/ Node* NodeDocument::SimpleCopy() { NodeDocument* NodeCopy; NodeCopy = new NodeDocument(); ERRORIF(NodeCopy == NULL, _R(IDE_NOMORE_MEMORY), NULL); CopyNodeContents(NodeCopy); return (NodeCopy); } /*********************************************************************************************** > void NodeDocument::CopyNodeContents(NodeDocument* NodeCopy) Author: Simon_Maneggio (Xara Group Ltd) Created: 07/6/93 Inputs: Outputs: A copy of this node Returns: - Purpose: This method copies the node's contents to the node pointed to by NodeCopy. Errors: An assertion failure will occur if NodeCopy is NULL scope: protected ***********************************************************************************************/ void NodeDocument::CopyNodeContents(NodeDocument* NodeCopy) { ENSURE(NodeCopy != NULL, "Trying to copy a node's contents to a NULL node"); NodeRenderablePaper::CopyNodeContents(NodeCopy); NodeCopy->LowExtent = LowExtent; NodeCopy->HighExtent = HighExtent; } /*********************************************************************************************** > void NodeDocument::PolyCopyNodeContents(NodeRenderable* pNodeCopy) Author: Phil_Martin (Xara Group Ltd) 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 NodeDocument::PolyCopyNodeContents(NodeRenderable* pNodeCopy) { ENSURE(pNodeCopy, "Trying to copy a node's contents into a NULL node"); ENSURE(IS_A(pNodeCopy, NodeDocument), "PolyCopyNodeContents given wrong dest node type"); if (IS_A(pNodeCopy, NodeDocument)) CopyNodeContents((NodeDocument*)pNodeCopy); } /*********************************************************************************************** > DocCoord NodeDocument::LoExtent() const Author: Simon_Maneggio (Xara Group Ltd) Created: 28/5/93 Inputs: - Outputs: - Returns: The documents low extent i.e. the low corner of the final chapters pasteboard rectangle. Purpose: For finding the low extent of the document Errors: - SeeAlso: - ***********************************************************************************************/ DocCoord NodeDocument::LoExtent() const { return (LowExtent); } /*********************************************************************************************** > DocCoord NodeDocument::HiExtent() const Author: Simon_Maneggio (Xara Group Ltd) Created: 28/5/93 Inputs: - Outputs: - Returns: The documents high extent, i.e. the high corner of the first chapters pasteboard rectangle. Purpose: For finding the high extent of the document Errors: - SeeAlso: - ***********************************************************************************************/ DocCoord NodeDocument::HiExtent() const { return (HighExtent); } /*********************************************************************************************** > DocCoord NodeDocument::DescribeExtents(DocCoord* LoExtent, DocCoord* HiExtent) const Author: Simon_Maneggio (Xara Group Ltd) Created: 02/06/93 Outputs: LoExtent: The documents low extent i.e. the low corner of the final chapters pasteboard rectangle. HiExtent: The documents high extent i.e. the high corner of the first chapters pasteboard rectangle. Returns: - Purpose: For finding the extents of the document. Errors: - SeeAlso: - ***********************************************************************************************/ void NodeDocument::DescribeExtents(DocCoord* LoExtent, DocCoord* HiExtent) const { *LoExtent = LowExtent; *HiExtent = HighExtent; } /*********************************************************************************************** > DocCoord NodeDocument::SetExtents() Author: Simon_Maneggio (Xara Group Ltd) Created: 28/4/93 Inputs: - Outputs: - Returns: - Purpose: For setting the document's extents in the NodeDocument, and then updating the extents in the current document. The NodeDocument finds its extents by looking at its first and last chapter's pasteboard rectangles. This method relies on the current document having been set. Errors: An assertion failure will occur if the document has no chapters ***********************************************************************************************/ /* Technical notes: The NodeDocuments LowExtent is set to the low corner of the final chapters pasteboard rectangle The NodeDocuments HighExtent is set to the high corner of the first chapters pasteboard rectangle */ void NodeDocument::SetExtents() { BOOL FoundChapter = FALSE; // Flag indicating if we have found a chapter beneath the doc Node* CurrentNode = FindFirstChild(); // Find the first chapter of a document while ((CurrentNode != NULL) && (!FoundChapter)) { if (CurrentNode->IsKindOf(CC_RUNTIME_CLASS(Chapter))) { FoundChapter = TRUE; HighExtent = ((NodeRenderablePaper*)CurrentNode)->GetPasteboardRect(FALSE).HighCorner(); // Low extent will change if we find another chapter LowExtent = ((NodeRenderablePaper*)CurrentNode)->GetPasteboardRect(FALSE).LowCorner(); } CurrentNode = CurrentNode->FindNext(); } // A document should have at least one chapter when setting the extents ENSURE(FoundChapter,"Trying to set the extents of a document with no chapters"); // Find the last chapter which may be the first while(CurrentNode != NULL) { if (CurrentNode->IsKindOf(CC_RUNTIME_CLASS(Chapter))) { LowExtent = ((NodeRenderablePaper*)CurrentNode)->GetPasteboardRect().LowCorner(); } CurrentNode = CurrentNode->FindNext(); } // Inform the document that its extents have changed (only do it for 'real' documents, // and not e.g. the clipboard. if (IS_A(pParentDoc, Document)) ((Document *) pParentDoc)->UpdateExtents(LowExtent, HighExtent); } #ifdef _DEBUG void NodeDocument::ShowDebugTreeDetails() const { TRACE( _T("Node Document ") ); Node::ShowDebugTreeDetails(); } #endif /******************************************************************************************** > void* NodeDocument::GetDebugDetails(StringBase* Str) Author: Simon_Maneggio (Xara Group Ltd) Created: 21/9/93 Inputs: - Outputs: Str: String giving debug info about the node Returns: - Purpose: For obtaining debug information about the Node Errors: - SeeAlso: - ********************************************************************************************/ void NodeDocument::GetDebugDetails(StringBase* Str) { #ifdef _DEBUG NodeRenderablePaper::GetDebugDetails(Str); String_256 TempStr; TempStr._MakeMsg(TEXT("\r\nLowExtent = (#1%ld, #2%ld)\r\nHighExtent = (#3%ld, #4%ld)\r\n"), LowExtent.x, LowExtent.y, HighExtent.x, HighExtent.y); (*Str)+=TempStr; #endif } /******************************************************************************************** > virtual UINT32 NodeDocument::GetNodeSize() const Author: Simon_Maneggio (Xara Group Ltd) Created: 6/10/93 Inputs: - Outputs: - Returns: The size of the node in bytes Purpose: For finding the size of the node SeeAlso: Node::GetSubtreeSize ********************************************************************************************/ UINT32 NodeDocument::GetNodeSize() const { return (sizeof(NodeDocument)); }