// $Id: brshbeca.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============================ */ // Implementation of BrushBecomeA classes #include "camtypes.h" #include "brshbeca.h" //#include "becomea.h" - in camtypes.h [AUTOMATICALLY REMOVED] //#include "undoop.h" - in camtypes.h [AUTOMATICALLY REMOVED] //#include "ink.h" - in camtypes.h [AUTOMATICALLY REMOVED] #include "attrmap.h" #include "nodepath.h" #include "nodebldr.h" //#include "group.h" - in camtypes.h [AUTOMATICALLY REMOVED] #include "ophist.h" CC_IMPLEMENT_MEMDUMP(HandleBrushBecomeA, CC_CLASS_MEMDUMP); CC_IMPLEMENT_MEMDUMP(BrushBecomeA, BecomeA); CC_IMPLEMENT_MEMDUMP(SimpleBecomeA, BecomeA); CC_IMPLEMENT_MEMDUMP(BrushBecomeAGroup, BecomeA); /*********************************************************************************************** > HandleBrushBecomeA::HandleBrushBecomeA() Author: Diccon_Yamanaka (Xara Group Ltd) Created: 7/12/99 Inputs: - Outputs: - Returns: - Purpose: Default constructor ***********************************************************************************************/ HandleBrushBecomeA::HandleBrushBecomeA() { m_pContextNode = NULL; m_pCreatedByNode = NULL; m_pNodeGroup = NULL; m_pBecomeA = NULL; m_LastStep = -1; m_NumBlendPaths = 0; m_bFirst = TRUE; m_bSecondary = FALSE; } /*********************************************************************************************** > HandleBrushBecomeA::~HandleBrushBecomeA() Author: Diccon_Yamanaka (Xara Group Ltd) Created: 4/3/2000 Inputs: - Outputs: - Returns: - Purpose: destructor ***********************************************************************************************/ HandleBrushBecomeA::~HandleBrushBecomeA() { if (m_pContextNode != NULL) { m_pContextNode->CascadeDelete(); delete m_pContextNode; m_pContextNode = NULL; } } /*********************************************************************************************** > BOOL HandleBrushBecomeA::Initialise(BecomeA* pBecomeA, Node* pContextNode, Node* pCreatedBy) Author: Diccon_Yamanaka (Xara Group Ltd) Created: 4/3/2000 Inputs: pContextNode - the position in the tree to insert new nodes pCreatedBy - the node that created these objects pBecomeA - the BecomeA object that tells us what to do and receives any passbacks Outputs: - Returns: TRUE, unless you pass in a duff pointer Purpose: initialises the HBecA object ready for use ***********************************************************************************************/ BOOL HandleBrushBecomeA::Initialise(BecomeA* pBecomeA, Node* pContextNode, Node* pCreatedBy) { ERROR2IF(pBecomeA == NULL, FALSE, "BecomeA pointer is NULL in HandleBrushBecomeA::Initialise"); ERROR2IF(pCreatedBy == NULL, FALSE, "Parent node is NULL in HandleBrushBecomeA::Initialise"); // if we are replacing a node in the tree then we need to ha if (pBecomeA->GetReason() == BECOMEA_REPLACE) ERROR2IF(pContextNode == NULL, FALSE, "Context Node is NULL in HandleBrushBecomeA::Initialise"); m_pBecomeA = pBecomeA; m_pContextNode = pContextNode; m_pCreatedByNode = pCreatedBy; return TRUE; } /*********************************************************************************************** > BOOL HandleBrushBecomeA::PassBack(BlendPath* pBlendPath, AttrMap* pAttrMap, UINT32 StepNum)) Author: Diccon_Yamanaka (Xara Group Ltd) Created: 4/3/2000 Inputs: pBlendPath - a blendpath that has been generated by the brush pAttrMap - the attributes that apply to the blendpath StepNum - the step counter of the brush Outputs: - Returns: TRUE, unless something goes wrong Purpose: This takes a path and an attribute map generated by a PathProcessorBrush, and generates a NodePath object, if it wants to become a path object If pBecomeA->Reason == BECOMEA_REPLACE, the NodePath and attributes are added to the tree. If pBecomeA->Reason == BECOMEA_PASSBACK, the NodePath is passed to the routine. SeeAlso: This routine is based upon the HandleBecomeA routine in nodebldr.cpp ***********************************************************************************************/ BOOL HandleBrushBecomeA::Passback(Path* pPath, CCAttrMap* pAttrMap, UINT32 StepNum) { ERROR2IF(pPath == NULL, FALSE, "pPath is NULL in HandleBecomeA::Passback"); ERROR2IF(pAttrMap == NULL, FALSE, "pAttrMap is NULL in HandleBecomeA::Passback"); ERROR2IF(m_pBecomeA == NULL, FALSE, "BecomeA is NULL in HandleBecomeA::Passback"); BOOL ValidReason = (m_pBecomeA->GetReason() == BECOMEA_REPLACE || m_pBecomeA->GetReason() == BECOMEA_PASSBACK); ERROR3IF_PF(!ValidReason,("Unkown BecomeA reason %d",m_pBecomeA->GetReason())); if (!ValidReason) return FALSE; if (m_pBecomeA->GetReason()== BECOMEA_REPLACE) ERROR2IF(m_pContextNode == NULL, FALSE, "Context Node is NULL in HandleBrushBecomeA::Passback"); BOOL Success = FALSE; NodePath* pNewNodePath = NULL; if (m_pBecomeA->BAPath()) { // We need to create a new NodePath, no matter what the reason. // Allocate a new NodePath node ALLOC_WITH_FAIL(pNewNodePath, (new NodePath), m_pBecomeA->GetUndoOp()); Success = (pNewNodePath != NULL); // Initialise the path if (Success) CALL_WITH_FAIL(pNewNodePath->InkPath.Initialise(pPath->GetNumCoords(),12), m_pBecomeA->GetUndoOp(), Success); if (Success) CALL_WITH_FAIL(pNewNodePath->InkPath.CopyPathDataFrom(pPath), m_pBecomeA->GetUndoOp(), Success); // If Success is TRUE, then we now have a new NodePath object that contains this shape's path // By default, attach the new path as the previous child of the context node Node* pAttachNode = m_pContextNode; AttachNodeDirection AttachDir = NEXT; // if this is the very first item then insert at first child if (m_bFirst) { AttachDir = LASTCHILD; m_bFirst = FALSE; } // By default, create a hide node action for the new path we're attaching to the tree // note - I've Changed my mind - because brushes can contain so many objects, by inserting an action // for each one we're eating up tons of unneccessary space. Instead call HideNode when // you're done so ou only do it once. BOOL HideNode = TRUE; Node* pNodeToHide = pNewNodePath; // Should we be placing all created paths inside a group? if (MakeGroupForThisStep()) { // Do we need to create a new group? I.e. is this the first path created for this step of the blend? if (StepNum == 1) { // Create a new group and place it in the tree next to the context node m_pNodeGroup = new NodeGroup; Success = (m_pNodeGroup != NULL); if (Success) { // attach group to our context node m_pNodeGroup->AttachNode(m_pContextNode,LASTCHILD); // Make a hide node action for this group HideNode = TRUE; pNodeToHide = m_pNodeGroup; } } else { pAttachNode = m_pNodeGroup; HideNode = FALSE; // We created a hide node action when this group was created } // If we have a group node, make sure the new path gets placed in the tree as the // group's last child if (Success) { pAttachNode = m_pNodeGroup; AttachDir = LASTCHILD; } } else AttachDir = LASTCHILD; if (Success) { switch (m_pBecomeA->GetReason()) { case BECOMEA_REPLACE : { // It's a BECOMEA_REPLACE, so put the new NodePath in the tree in an undoable way // Can't do it in an undoable way without an Undo Op // ERROR2IF_PF(m_pBecomeA->GetUndoOp() == NULL,FALSE,("GetUndoOp() returned NULL")); if (Success) { ERROR2IF(pAttachNode == NULL,FALSE,"The attach node is NULL!!!"); // Insert the new NodePath into the tree pNewNodePath->AttachNode(pAttachNode,AttachDir); // Apply all the attributes to the new path pNewNodePath->ApplyAttributes(pAttrMap,TRUE); if (m_pBecomeA->GetUndoOp()) { // Set the bounds pNewNodePath->ValidateBoundingRect(); pNewNodePath->InvalidateBoundingRect(); // Create a hide node action to hide the node when we undo if (HideNode) { ERROR2IF(pNodeToHide == NULL,FALSE,"pNodeToHide is NULL"); HideNodeAction* UndoHideNodeAction; Success = (HideNodeAction::Init(m_pBecomeA->GetUndoOp(), m_pBecomeA->GetUndoOp()->GetUndoActionList(), pNodeToHide, TRUE, // Include subtree size ( Action**)(&UndoHideNodeAction)) != AC_FAIL); } } } // We need to create a copy of the blended attributes to give to the caller // as they don't exist in the tree, and the ones in pAttrMap will be // deleted eventually. ERROR2IF(m_pCreatedByNode == NULL, FALSE, "Parent node is NULL in HandleBrushBecomeA::Passback"); CCAttrMap* pNewAttrMap = pAttrMap->Copy(); // was causing memory leaks if (pNewAttrMap != NULL) m_pBecomeA->PassBack(pNewNodePath,(NodeRenderableInk*)m_pCreatedByNode,pNewAttrMap); } break; case BECOMEA_PASSBACK : { if (Success) { ERROR2IF(pAttachNode == NULL,FALSE,"The attach node is NULL!!!"); // Insert the new NodePath into the tree pNewNodePath->AttachNode(pAttachNode,AttachDir); // Apply all the attributes to the new path pNewNodePath->ApplyAttributes(pAttrMap,TRUE); // Set the bounds pNewNodePath->ValidateBoundingRect(); pNewNodePath->InvalidateBoundingRect(); } // We need to create a copy of the blended attributes to give to the caller // as they don't exist in the tree, and the ones in pAttrMap will be // deleted eventually. ERROR2IF(m_pCreatedByNode == NULL, FALSE, "Parent node is NULL in HandleBrushBecomeA::Passback"); CCAttrMap* pNewAttrMap = pAttrMap->Copy(); // was causing memory leaks if (pNewAttrMap != NULL) Success = m_pBecomeA->PassBack(pNewNodePath,(NodeRenderableInk*)m_pCreatedByNode,pNewAttrMap); else Success = FALSE; } break; case BECOMEA_TEST : ERROR3("This case wasn't handled by the switch and generated a warning"); break; } // end switch } //end if else //not success so delete our nodepath { if (pNewNodePath != NULL) delete pNewNodePath; } } // end if pBecomeA->BAPath() return Success; } /*********************************************************************************************** > BOOL HandleBrushBecomeA::HideContextNode() Author: Diccon_Yamanaka (Xara Group Ltd) Created: 4/3/2000 Inputs: - Outputs: - Returns: TRUE if successful, etc. Purpose: inserts an action to hide the context node ***********************************************************************************************/ BOOL HandleBrushBecomeA::HideContextNode() { ERROR2IF(m_pBecomeA == NULL, FALSE, "BecomeA is NULL in HandleBecomeA::HideContextNode"); ERROR2IF(m_pContextNode == NULL, FALSE, "Context node is NULL in HandleBecomeA::HideContextNode"); ERROR2IF(m_pBecomeA->GetUndoOp() == NULL,FALSE,"GetUndoOp() returned NULL in HandleBecomeA::HideContextNode"); UndoableOperation* pUndoOp = m_pBecomeA->GetUndoOp(); return pUndoOp->DoHideNode(m_pContextNode, TRUE); } /*********************************************************************************************** > BOOL HandleBrushBecomeA::HideCreatedByNode() Author: Diccon_Yamanaka (Xara Group Ltd) Created: 4/3/2000 Inputs: - Outputs: - Returns: TRUE if successful, etc. Purpose: inserts an action to hide the context node ***********************************************************************************************/ BOOL HandleBrushBecomeA::HideCreatedByNode() { ERROR2IF(m_pBecomeA == NULL, FALSE, "BecomeA is NULL in HandleBecomeA::HideContextNode"); ERROR2IF(m_pCreatedByNode == NULL, FALSE, "Context node is NULL in HandleBecomeA::HideContextNode"); // ERROR2IF(m_pBecomeA->GetUndoOp() == NULL,FALSE,"GetUndoOp() returned NULL in HandleBecomeA::HideContextNode"); // set the context node selected if (m_pContextNode) m_pContextNode->SetSelected(TRUE); m_pContextNode = NULL; // so our destructor doesn't delete it UndoableOperation* pUndoOp = m_pBecomeA->GetUndoOp(); if (!m_bSecondary) { if (pUndoOp) return pUndoOp->DoHideNode(m_pCreatedByNode, TRUE); m_pCreatedByNode->CascadeDelete(); delete m_pCreatedByNode; } return(TRUE); } /*********************************************************************************************** > BOOL HandleBrushBecomeA::FinishPassback() Author: Diccon_Yamanaka (Xara Group Ltd) Created: 4/3/2000 Inputs: - Outputs: - Returns: TRUE if successful, etc. Purpose: Somewhat devious this, and to be used with care. Basically after we have completed all our passbacks we have accumulated a nodegroup containiing all the brush objects converted to nodepaths. This function indicates that we have finished and can then passback this nodegroup to our becomeA object. This is a bit bad as we're never supposed to pass nodegroups back, so you must make sure your becomeA object can handle it. It also nulls the group pointer so that it doesn't get deleted on destruction ***********************************************************************************************/ BOOL HandleBrushBecomeA::FinishPassback() { ERROR2IF(m_pBecomeA == NULL, FALSE, "BecomeA is NULL in HandleBecomeA::FinishPassback"); ERROR2IF(m_pContextNode == NULL, FALSE, "Context node is NULL in HandleBecomeA::FinishPassback"); if (m_pBecomeA->GetReason() == BECOMEA_REPLACE) { // Select the newly created node if (m_pContextNode) m_pContextNode->SetSelected(TRUE); } if (m_pBecomeA->GetReason() == BECOMEA_REPLACE) { // Select the newly created node if (m_pContextNode) m_pContextNode->SetSelected(TRUE); } // We really shouldn't be passing this group back to anyone apart from our special becomeA if (!m_pBecomeA->IsBrushBecomeAGroup()) { m_pContextNode = NULL; return TRUE; } BOOL ok = m_pBecomeA->PassBack((NodeRenderableInk*)m_pContextNode,(NodeRenderableInk*)m_pCreatedByNode,NULL); if (ok) m_pContextNode = NULL; return ok; } /*------------------------------------------------------------------------------------------------ --------------------------BrushBecomeA implementation--------------------------------------------- -------------------------------------------------------------------------------------------------*/ /*********************************************************************************************** > BrushBecomeA::BrushBecomeA() Author: Diccon_Yamanaka (Xara Group Ltd) Created: 7/12/99 Inputs: Reason - our reason for being pClass - the class to generate pOp - the operation we are part of pBlendRef - the blendref that created us Outputs: - Returns: - Purpose: constructor ***********************************************************************************************/ BrushBecomeA::BrushBecomeA(BecomeAReason Reason, CCRuntimeClass* pClass, UndoableOperation* pOp, BlendRef* pBlendRef) : BecomeA(Reason, pClass, pOp) { m_pBlendRef = pBlendRef; } /*********************************************************************************************** > bool BrushBecomeA::PassBack(NodeRenderableInk* pNewNode, NodeRenderableInk* pCreatedByNode, CCAttrMap* pAttrMap) Author: Diccon_Yamanaka (Xara Group Ltd) Created: 7/12/99 Inputs: pNewNode - the node that was generated pCreatedByNode - the node that created the node that was generated pAttrMap - the applied attributes Outputs: - Returns: TRUE if successful, FALSE otherwise Purpose: the money function, takes the nodepaths that are generated and makes blendpaths out of them. Note that for this to work pNewNode MUST be a nodepath. ***********************************************************************************************/ BOOL BrushBecomeA::PassBack(NodeRenderableInk* pNewNode, NodeRenderableInk* pCreatedByNode, CCAttrMap* pAttrMap) { ERROR2IF(pNewNode == NULL || pCreatedByNode == NULL, FALSE, "Input pointers are NULL in BrushBecomeA::PassBack"); if (!pNewNode->IsNodePath()) { ERROR3("New node is not NodePath in BrushBecomeA::PassBack"); return FALSE; } Path* pInkPath = &(((NodePath*)pNewNode)->InkPath); //Node * pPathNode = (NodePath *)pNewNode; //INT32 NumCoords = pInkPath->GetNumCoords(); //INT32 StartIndex=0,EndIndex=0; //UINT32 NumSubPaths=0; // Create a new NodePath for this subpath NodePath* pNewNodePath = new NodePath; BOOL ok = (pNewNodePath != NULL); if (ok) { // Copy the subpath in TempPath into the new NodePath's path object Path* pNewPath = &(pNewNodePath->InkPath); ok = pNewPath->Initialise(pInkPath->GetNumCoords()); if (ok) ok = pNewPath->CopyPathDataFrom(pInkPath); if (ok) { // Create a new BlendPath obect BlendPath* pBlendPath = new BlendPath; ok = (pBlendPath != NULL); // Initialise the BlendPath object with the generated NodePath // and add the BlendPath to the BlendRef if (ok) ok = pBlendPath->Initialise(pNewNodePath, 0, pCreatedByNode, 1, 0, pAttrMap, FALSE); if (ok) ok = m_pBlendRef->AddBlendPath(pBlendPath); } } if (ok) { //pBlendRef->SetAWComplex(NumSubPaths > 1); // This is the 'complex' flag used when exporting to AW EPS pNewNode->CascadeDelete(); delete pNewNode; pNewNode = NULL; } return ok; } /*------------------------------------------------------------------------------------------------ --------------------------BrushBecomeA implementation--------------------------------------------- -------------------------------------------------------------------------------------------------*/ /*********************************************************************************************** > SimpleBecomeA::SimpleBecomeA(BecomeAReason, CCRuntimeClass* pClass, UndoableOperation* pOp) Author: Diccon_Yamanaka (Xara Group Ltd) Created: 7/12/99 Inputs: Reason - our reason for being pClass - the class to generate pOp - the operation we are part of Outputs: - Returns: - Purpose: constructor ***********************************************************************************************/ SimpleBecomeA::SimpleBecomeA(BecomeAReason Reason, CCRuntimeClass* pClass, UndoableOperation* pOp) :BecomeA(Reason, pClass, pOp) { m_pNodePath = NULL; } /*********************************************************************************************** > BOOL SimpleBecomeA::PassBack(NodeRenderableInk* pNewNode, NodeRenderableInk* pCreatedByNode, CCAttrMap* pAttrMap) Author: Diccon_Yamanaka (Xara Group Ltd) Created: 7/12/99 Inputs: pNewNode - the node that was generated pCreatedByNode - the node that created the node that was generated pAttrMap - the applied attributes Outputs: - Returns: TRUE if successful, FALSE otherwise Purpose: the money function, takes the nodepath and assigns it to our member so it can be retrieved using GetNodePath ***********************************************************************************************/ BOOL SimpleBecomeA::PassBack(NodeRenderableInk* pNewNode, NodeRenderableInk* pCreatedByNode, CCAttrMap* pAttrMap) { ERROR2IF(pNewNode == NULL, FALSE, "Node is NULL in SimpleBecomeA::PassBack"); ERROR2IF(!pNewNode->IsNodePath(), FALSE, "New node is not nodepath in SimpleBecomeA::PassBack"); m_pNodePath = (NodePath*)pNewNode; return TRUE; } /*********************************************************************************************** > NodePath* SimpleBecomeA::GetNodePath() Author: Diccon_Yamanaka (Xara Group Ltd) Created: 7/12/99 Inputs: - Outputs: - Returns: the nodepath that we receieved from the passback Purpose: as above ***********************************************************************************************/ NodePath* SimpleBecomeA::GetNodePath() { return m_pNodePath; } /*------------------------------------------------------------------------------------------------ --------------------------BrushBecomeAGroup implementation--------------------------------------------- -------------------------------------------------------------------------------------------------*/ /*********************************************************************************************** > BrushBecomeAGroup::BrushBecomeAGroup(BecomeAReason, CCRuntimeClass* pClass, UndoableOperation* pOp) Author: Diccon_Yamanaka (Xara Group Ltd) Created: 7/12/99 Inputs: Reason - our reason for being pClass - the class to generate pOp - the operation we are part of Outputs: - Returns: - Purpose: constructor ***********************************************************************************************/ BrushBecomeAGroup::BrushBecomeAGroup(BecomeAReason Reason, CCRuntimeClass* pClass, UndoableOperation* pOp) :BecomeA(Reason, pClass, pOp) { m_pNodeGroup = NULL; } /*********************************************************************************************** > NodeGroup* BrushBecomeAGroup::GetNodeGroup() Author: Diccon_Yamanaka (Xara Group Ltd) Created: 7/12/99 Inputs: - Outputs: - Returns: the nodepath that we receieved from the passback Purpose: as above, nulls the group so we don't delete it ***********************************************************************************************/ BrushBecomeAGroup::~BrushBecomeAGroup() { if (m_pNodeGroup != NULL) { m_pNodeGroup->CascadeDelete(); delete m_pNodeGroup; } } /*********************************************************************************************** > BOOL BrushBecomeAGroup::PassBack(NodeRenderableInk* pNewNode, NodeRenderableInk* pCreatedByNode, CCAttrMap* pAttrMap) Author: Diccon_Yamanaka (Xara Group Ltd) Created: 7/12/99 Inputs: pNewNode - the node that was generated pCreatedByNode - the node that created the node that was generated pAttrMap - the applied attributes Outputs: - Returns: TRUE if successful, FALSE otherwise Purpose: Curiously enough we're only interested in receiving nodegroups here ***********************************************************************************************/ BOOL BrushBecomeAGroup::PassBack(NodeRenderableInk* pNewNode, NodeRenderableInk* pCreatedByNode, CCAttrMap* pAttrMap) { ERROR2IF(pNewNode == NULL || pCreatedByNode == NULL, FALSE, "Input pointers are NULL in BrushBecomeA::PassBack"); // we don't care about the attr maps if (pAttrMap != NULL) { pAttrMap->DeleteAttributes(); delete pAttrMap; pAttrMap = NULL; } if (pNewNode->IsAGroup()) { if (m_pNodeGroup != NULL) ERROR3("Whats going on here? We've already got a nodegroup!"); m_pNodeGroup = (NodeGroup*)pNewNode; } return TRUE; } /*********************************************************************************************** > NodeGroup* BrushBecomeAGroup::GetNodeGroup() Author: Diccon_Yamanaka (Xara Group Ltd) Created: 7/12/99 Inputs: - Outputs: - Returns: the nodepath that we receieved from the passback Purpose: as above, nulls the group so we don't delete it ***********************************************************************************************/ NodeGroup* BrushBecomeAGroup::GetNodeGroup() { NodeGroup* Temp = m_pNodeGroup; m_pNodeGroup = NULL; return Temp; }