// $Id: strkcomp.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. You should have received a copy of the GNU General Public License along with Xara LX (see the file GPL in the root directory of the distribution); if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA ADDITIONAL RIGHTS ----------------- Conditional upon your continuing compliance with the GNU General Public License described above, Xara Group Ltd grants to you certain additional rights. The additional rights are to use, modify, and distribute the software together with the wxWidgets library, the wxXtra library, and the "CDraw" library and any other such library that any version of Xara LX relased by Xara Group Ltd requires in order to compile and execute, including the static linking of that library to XaraLX. In the case of the "CDraw" library, you may satisfy obligation under the GNU General Public License to provide source code by providing a binary copy of the library concerned and a copy of the license accompanying it. Nothing in this section restricts any of the rights you have under the GNU General Public License. SCOPE OF LICENSE ---------------- This license applies to this program (XaraLX) and its constituent source files only, and does not necessarily apply to other Xara products which may in part share the same code base, and are subject to their own licensing terms. This license does not apply to files in the wxXtra directory, which are built into a separate library, and are subject to the wxWindows license contained within that directory in the file "WXXTRA-LICENSE". This license does not apply to the binary libraries (if any) within the "libs" directory, which are subject to a separate license contained within that directory in the file "LIBS-LICENSE". ARRANGEMENTS FOR CONTRIBUTION OF MODIFICATIONS ---------------------------------------------- Subject to the terms of the GNU Public License (see above), you are free to do whatever you like with your modifications. 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Xara Group Ltd, Gaddesden Place, Hemel Hempstead, HP2 6EX, UK. http://www.xara.com/ =================================XARAHEADEREND============================ */ // Stroke Doc-component classes. // These store brush-stroke definitions as clipart subtrees #include "camtypes.h" #include "strkcomp.h" //#include "app.h" - in camtypes.h [AUTOMATICALLY REMOVED] //#include "camfiltr.h" - in camtypes.h [AUTOMATICALLY REMOVED] //#include "colormgr.h" //#include "cxfrec.h" - in camtypes.h [AUTOMATICALLY REMOVED] //#include "cxfrech.h" - in camtypes.h [AUTOMATICALLY REMOVED] #include "cxftags.h" //#include "fixmem.h" - in camtypes.h [AUTOMATICALLY REMOVED] #include "layer.h" #include "ppvecstr.h" //#include "sgline.h" //#include "spread.h" - in camtypes.h [AUTOMATICALLY REMOVED] #include "strkattr.h" #include "linecomp.h" #include "linedef.h" CC_IMPLEMENT_DYNAMIC(StrokeDefinition, LineDefinition); CC_IMPLEMENT_DYNAMIC(StrokeComponent, LineComponent) CC_IMPLEMENT_DYNAMIC(StrokeComponentClass, DocComponentClass) DECLARE_SOURCE("$Revision: 1282 $"); // Declare smart memory handling in Debug builds #define new CAM_DEBUG_NEW // Statics StrokeDefinition **StrokeComponent::pStrokeList = NULL; UINT32 StrokeComponent::CurrentSize = 0; UINT32 StrokeComponent::Used = 0; UINT32 StrokeComponent::ImportHandle = 0; UINT32 StrokeComponent::ImportFlags = 0; UINT32 StrokeComponent::ImportData1 = 0; UINT32 StrokeComponent::ImportData2 = 0; InsertTreeContext *StrokeComponent::pImportPreviousContext = NULL; Node *StrokeComponent::pImportNewBrush = NULL; String_32 StrokeComponent::ImportedName; /******************************************************************************************** > StrokeDefinition::StrokeDefinition(Node *pStrokeTree, BOOL repeating = FALSE, INT32 repeats = 0); Author: Jason_Williams (Xara Group Ltd) Created: 27/2/97 Inputs: pStrokeTree - A pointer to a Spread node which is the root of a clipart subtree which should be used for this stroke definition. It must obey these rules: * It must be a Spread * It must not be linked into any other parent tree structure * It should contain at least one path node (or else the stroke will appear "blank"). You should do Make Shapes on the subtree so that text, blends, quickshapes, etc are all in path form * It should be attribute complete, or close thereto repeating - TRUE if this stroke definition should repeat along the stroke rather than being stretched to fit. repeats - The number of times the brush should repeat along the stroke, or zero for 'work the best out at rendertime' Purpose: Constructor SeeAlso: StrokeComponent::AddNewStroke ********************************************************************************************/ StrokeDefinition::StrokeDefinition(Node *pStrokeTree, BOOL repeating, INT32 repeats) { ERROR3IF(pStrokeTree == NULL, "Illegal NULL param"); ERROR3IF(!pStrokeTree->IsSpread(), "StrokeDefinitions must begin with a Spread (for now, at least)"); ERROR3IF(pStrokeTree->FindParent() != NULL, "Stroke Definition looks like it's linked into a tree!"); Repeating = repeating; Repeats = repeats; pStroke = pStrokeTree; // Check the subtree to see if it contains any transparency NeedsTrans = pStroke->ChildrenNeedTransparency(); IOStore = 0; Name = TEXT("Custom brush"); OverridesFill = FALSE; OverridesTrans = FALSE; } /******************************************************************************************** > StrokeDefinition::~StrokeDefinition() Author: Jason_Williams (Xara Group Ltd) Created: 27/2/97 Purpose: Destructor ********************************************************************************************/ StrokeDefinition::~StrokeDefinition() { if (pStroke != NULL) { pStroke->CascadeDelete(); delete pStroke; } } /******************************************************************************************** > void StrokeDefinition::SetStrokeName(StringBase *pName) Author: Jason_Williams (Xara Group Ltd) Created: 5/3/97 Purpose: Sets the name text string for this stroke ********************************************************************************************/ void StrokeDefinition::SetStrokeName(StringBase *pName) { ERROR3IF(pName == NULL, "Illegal NULL param"); pName->Left(&Name, 31); } /******************************************************************************************** > void StrokeDefinition::SetStrokeRepeating(BOOL Repeating) Author: Richard_Millican (Xara Group Ltd) Created: 6/3/97 Purpose: Sets the repeating flag for this stroke ********************************************************************************************/ void StrokeDefinition::SetStrokeRepeating(BOOL SetMeToTrueIfYouReallyWantMeToBeRepeating) { // TRUE if the stroke should repeat along the path, FALSE if it should stretch Repeating = SetMeToTrueIfYouReallyWantMeToBeRepeating; } /******************************************************************************************** > void StrokeDefinition::SetNumStrokeRepeats(INT32 NumRepeats) Author: Richard_Millican (Xara Group Ltd) Created: 6/3/97 Purpose: Sets the number of repeats for this stroke ********************************************************************************************/ void StrokeDefinition::SetNumStrokeRepeats(INT32 NumRepeats) { // Number of times a brush should repeat along a stroke, or zero to just work out the // optimal value on the fly Repeats = NumRepeats; } /******************************************************************************************** > BOOL StrokeDefinition::IsDifferent(StrokeDefinition *pOther) Author: Jason_Williams (Xara Group Ltd) Created: 27/2/97 Inputs: pOther - the stroke to compare this stroke to Returns: TRUE if they're different in any way, FALSE if they are identical definitions Purpose: Determine if 2 StrokeDefinitions are considered different. Used when adding strokes to the global list, so that like strokes can be merged. ********************************************************************************************/ BOOL StrokeDefinition::IsDifferent(LineDefinition *pTest) { ERROR3IF(pTest == NULL, "Illegal NULL param"); // check to make sure that pOther is in fact a StrokeDef so that // we can recast it StrokeDefinition* pOther = NULL; if (pTest->IS_KIND_OF(StrokeDefinition)) pOther = (StrokeDefinition*)pTest; else { ERROR3("Parameter is not a stroke definition"); return TRUE; } if (pOther->Repeating != Repeating) return(TRUE); if (pOther->Repeats != Repeats) return(TRUE); if (!Name.IsIdentical(pOther->Name)) return(TRUE); if (pOther->pStroke == NULL || pStroke == NULL) { ERROR3("StrokeDefinition has not been properly initialised"); return(TRUE); } // --- Check to see if the brush bounds are equal DocRect OtherBounds = ((Spread *)(pOther->pStroke))->GetBoundingRect(); DocRect Bounds = ((Spread *)pStroke)->GetBoundingRect(); if (Bounds != OtherBounds) return(TRUE); // --- Check the subtrees node-for-node to see if they are the same Node *pCurNode1 = pStroke->FindFirstDepthFirst(); Node *pCurNode2 = pOther->pStroke->FindFirstDepthFirst(); while (pCurNode1 != NULL && pCurNode2 != NULL) { // See if the nodes are equivalent - if not, we can return immediately if (pCurNode1->IsDifferent(pCurNode2)) return(TRUE); // And go to the next node in both brushes pCurNode1 = pCurNode1->FindNextDepthFirst(pStroke); pCurNode2 = pCurNode2->FindNextDepthFirst(pOther->pStroke); } // If we did the entire search and both pointers ended up NULL simultaneously, then // we have an exact match if (pCurNode1 == NULL && pCurNode2 == NULL) return(FALSE); return(TRUE); } /******************************************************************************************** > virtual BOOL StrokeDefinition::NeedsTransparency() const Author: Jason_Williams (Xara Group Ltd) Created: 4/3/97 Returns: TRUE if this stroke needs transparency in order to render Purpose: Determine if this stroke needs transparency in order to render. ********************************************************************************************/ BOOL StrokeDefinition::NeedsTransparency() const { return(NeedsTrans); } /******************************************************************************************** > BOOL StrokeComponentClass::Init() Author: Jason_Williams (Xara Group Ltd) Created: 22/2/97 Returns: TRUE if all went well; FALSE if not. Purpose: Register the Stroke document component with the main application. Errors: Out of memory. SeeAlso: DocComponent ********************************************************************************************/ BOOL StrokeComponentClass::Init() { // Instantiate a component class to register with the application. StrokeComponentClass *pClass = new StrokeComponentClass; if (pClass == NULL) return(FALSE); // Register it GetApplication()->RegisterDocComponent(pClass); return(TRUE); } /******************************************************************************************** > void StrokeComponentClass::DeInit() Author: Jason_Williams (Xara Group Ltd) Created: 22/2/97 Returns: TRUE if all went well; FALSE if not. Purpose: De-initialises the vector stroke provider system ********************************************************************************************/ void StrokeComponentClass::DeInit() { StrokeComponent::DeleteStrokeList(); } /******************************************************************************************** > BOOL StrokeComponentClass::AddComponent(BaseDocument *pDocument) Author: Jason_Williams (Xara Group Ltd) Created: 22/2/97 Inputs: pDocument - the document to add the print to. Returns: TRUE if the Stroke component was added ok; FALSE if not. Purpose: Add a Stroke component to the specified document. Errors: Out of memory SeeAlso: PrintComponentClass ********************************************************************************************/ BOOL StrokeComponentClass::AddComponent(BaseDocument *pDocument) { ERROR2IF(pDocument==NULL, FALSE, "NULL document passed to StrokeCompClass:Add"); // Check to see if this document already has a colour list; if so, leave it alone. if (pDocument->GetDocComponent(CC_RUNTIME_CLASS(StrokeComponent)) != NULL) return(TRUE); // Ok - create the print mark component. StrokeComponent *pComponent = new StrokeComponent(); if (pComponent == NULL) return(FALSE); // All ok - add the component to the document. pDocument->AddDocComponent(pComponent); return(TRUE); } /******************************************************************************************** > StrokeComponent::StrokeComponent() Author: Jason_Williams (Xara Group Ltd) Created: 22/2/97 Purpose: Constructor ********************************************************************************************/ StrokeComponent::StrokeComponent() { } /******************************************************************************************** > StrokeComponent::~StrokeComponent() Author: Jason_Williams (Xara Group Ltd) Created: 22/2/97 Purpose: Destructor ********************************************************************************************/ StrokeComponent::~StrokeComponent() { } /******************************************************************************************** > static void StrokeComponent::DeleteStrokeList(void) Author: Jason_Williams (Xara Group Ltd) Created: 22/2/97 Purpose: Static deinitialisation function, called on shutdown. Clears out the global stroke list. Must be called when all users of the stroke system (documents) have already been deleted. ********************************************************************************************/ void StrokeComponent::DeleteStrokeList(void) { if (pStrokeList != NULL) { for (UINT32 i = 0; i < Used; i++) { if (pStrokeList[i] != NULL) delete pStrokeList[i]; pStrokeList[i] = NULL; } CCFree(pStrokeList); pStrokeList = NULL; } } /******************************************************************************************** > static StrokeHandle StrokeComponent::AddNewStroke(StrokeDefinition *pStroke) Author: Jason_Williams (Xara Group Ltd) Created: 29/2/97 Inputs: pStroke - (may not be NULL) A stroke definition to add, which now belongs to the StrokeComponent, so you mustn't delete it! Returns: A handle which uniquely identifies the new stroke, or StrokeHandle_NoStroke if we ran out of memory for storing strokes Purpose: Adds the given stroke to the global stroke list. Notes: IMPORTANT! The stroke definition you pass in belongs to the StrokeComponent, and will be deleted when finished with. YOU MUST NOT use the pStroke pointer after this call! If the call fails, or if the stroke is merged with an existing one, the object you passed in will be IMMEDIATELY DELETED! If you wish to use the stroke after Adding it, you must call FindStroke with the returned stroke handle! Technical: Strokes are recorded in an array of StrokeDefinition pointers. The StrokeHandle is just an index into this array, for fast lookup. When deleted, the array-entry is set NULL and never re-used, so that any handles floating around can be safely used (much better than getting IndexedColour deleted when in use errors, eh? ;-). New entries are thus always appended to the list. ********************************************************************************************/ StrokeHandle StrokeComponent::AddNewStroke(StrokeDefinition *pStroke) { // ****!!!!TODO - if we're multi-threadig, this probably needs to be a critical section // because the list is global ERROR3IF(pStroke == NULL, "Illegal NULL param"); // --- First, check if we can merge the given stroke with one already in the list for (UINT32 i = 0; i < Used; i++) { if (pStrokeList[i] != NULL && !pStroke->IsDifferent(pStrokeList[i])) { // The stroke is the same as one we already have in our stroke list, so we // delete the copy that was passed in, and return the existing ones handle // We copy the import handle value over, though, so that we don't "lose" // merged strokes during import! pStrokeList[i]->SetIOStore(pStroke->ReadIOStore()); delete pStroke; return((StrokeHandle) i); } } // --- Next, check if we have enough room in our stroke array to add a new entry to the end if (Used >= CurrentSize) { if (!ExpandArray()) { delete pStroke; return(StrokeHandle_NoStroke); } } // --- OK, we have a totally new stroke, so add it to the end of the list StrokeHandle NewHandle = (StrokeHandle) Used; pStrokeList[Used] = pStroke; Used++; // --- Now, make sure the stroke gallery display updates to show the new stroke // ****!!!!TODO - should notify the stroke gallery (broadcast a msg) so that it updates // I'll use a nasty bodgy direct call to the line gallery instead... eeek! { PathProcessorStrokeVector *pProcessor = new PathProcessorStrokeVector; if (pProcessor != NULL) { pProcessor->SetStrokeDefinition(NewHandle); PORTNOTE("other","Removed LineGallery usage") #ifndef EXCLUDE_FROM_XARALX StrokeTypeAttrValue *pStrokeAttr = new StrokeTypeAttrValue(pProcessor); if (pStrokeAttr != NULL) LineGallery::AddNewStrokeItem(pStrokeAttr); else delete pProcessor; #endif } } // --- And return the new handle return(NewHandle); } /******************************************************************************************** > static StrokeDefinition *StrokeComponent::FindStroke(StrokeHandle Handle); Author: Jason_Williams (Xara Group Ltd) Created: 29/2/97 Inputs: Handle - A handle which uniquely identifies the new stroke Returns: A pointer to a StrokeDefinition for that Stroke. If the stroke has been deleted, NULL will be returned, in which case, you should gracefully degrade (by rendering an old style line in place of the stroke) Purpose: Find a stroke, given its unique identity handle ********************************************************************************************/ StrokeDefinition *StrokeComponent::FindStroke(StrokeHandle Handle) { if (Handle == StrokeHandle_NoStroke) return(NULL); if (Handle >= Used) { ERROR3("Out of range stroke handle"); return(NULL); } return(pStrokeList[Handle]); } /******************************************************************************************** > BOOL StrokeComponent::StartImport(BaseCamelotFilter *pFilter) Author: Jason_Williams (Xara Group Ltd) Created: 22/2/97 Inputs: pFilter - the BaseCamelotFilter filter that is being used to import a file. Returns: TRUE if the component was able to prepare for importing; FALSE if not (e.g. out of memory) Purpose: Called before we start to import a file SeeAlso: DocComponent ********************************************************************************************/ BOOL StrokeComponent::StartImport(BaseCamelotFilter *pFilter) { if (pFilter == NULL) { ERROR3("StrokeComponent::StartImport filter is null!"); return(TRUE); } // Set the IOStore in all the strokes to 0xffffffff. During import, this entry is used // to map imported handles to the real handles they have been assigned. if (pStrokeList != NULL) { for (UINT32 Index = 0; Index < Used; Index++) { if (pStrokeList[Index] != NULL) pStrokeList[Index]->SetIOStore(0xffffffff); } } return(TRUE); } /******************************************************************************************** > BOOL StrokeComponent::EndImport(BaseCamelotFilter *pFilter, BOOL Success) Author: Jason_Williams (Xara Group Ltd) Created: 22/2/97 Inputs: pFilter - the BaseCamelotFilter filter that is being used to import a file. Success - TRUE => The import was successful; FALSE => The import failed - abandon any changes. Returns: TRUE if the component was able to end the importing; FALSE if not (e.g. out of memory) Purpose: Called on completion of an import ********************************************************************************************/ BOOL StrokeComponent::EndImport(BaseCamelotFilter *pFilter, BOOL Success) { return TRUE; } /******************************************************************************************** > BOOL StrokeComponent::StartExport(BaseCamelotFilter *pFilter) Author: Jason_Williams (Xara Group Ltd) Created: 22/2/97 Inputs: pFilter - the BaseCamelotFilter filter that is being used to export a file. Returns: TRUE if the component was able to prepare for exporting; FALSE if not (e.g. out of memory) Purpose: Called before an export is started ********************************************************************************************/ BOOL StrokeComponent::StartExport(BaseCamelotFilter *pFilter) { #if !defined(EXCLUDE_FROM_RALPH) if (pFilter == NULL) { ERROR3("StrokeComponent::StartExport filter is null!"); return(TRUE); } TRACEUSER( "Diccon", _T("Start Export Stroke Component\n")); // ****!!!!TODO - if we're multi-threadig, this probably needs to be a critical section // because the list is global // Flag all strokes as not having been saved. When we save one, we set its flag so that // we don't try to save it a second time. if (pStrokeList != NULL) { for (UINT32 Index = 0; Index < Used; Index++) { if (pStrokeList[Index] != NULL) pStrokeList[Index]->SetIOStore(FALSE); } // Write out an atomic tag definition in front of the vector stroke definition. // ****!!!!TODO - This should really only be done just before we export the first // STROKEDEFINITION tag, but it is not properly supported by the export system as yet. BOOL ok = TRUE; CXaraFileRecord Rec(TAG_ATOMICTAGS, TAG_ATOMICTAGS_SIZE); if (ok) ok = Rec.Init(); if (ok) ok = Rec.WriteUINT32(TAG_STROKEDEFINITION); if (ok) pFilter->Write(&Rec); // And write out the record } #endif return(TRUE); } /******************************************************************************************** > BOOL StrokeComponent::EndExport(BaseCamelotFilter *pFilter, BOOL Success) Author: Jason_Williams (Xara Group Ltd) Created: 22/2/97 Inputs: pFilter - the BaseCamelotFilter filter that is being used to import a file. Success - True if everything went swimmingly, False if just a clean up is required. Returns: TRUE if the component was able to end the exporting; FALSE if not (e.g. out of memory) Purpose: Called on completion of file export ********************************************************************************************/ BOOL StrokeComponent::EndExport(BaseCamelotFilter *pFilter, BOOL Success) { BOOL ok = TRUE; TRACEUSER( "Diccon", _T("End Export Stroke Component\n")); #if !defined(EXCLUDE_FROM_RALPH) if (pFilter == NULL) { ERROR3("StrokeComponent::EndExport filter is null!"); return(ok); } if (!Success) // If we failed to export, then return immediately return(ok); #endif return(ok); } /******************************************************************************************** > static BOOL ExportStroke(BaseCamelotFilter *pFilter, StrokeHandle Handle) Author: Jason_Williams (Xara Group Ltd) Created: 4/3/97 Inputs: pFilter - the BaseCamelotFilter filter that is being used to export a file. Handle - The stroke to be exported Returns: TRUE if export was successful FALSE if export was aborted - no error is set, as in this case, it usually means that the stroke has been deleted, and is being treated as an old-style line. In this case, the caller should simply not bother exporting the attribute using the stroke definition. Purpose: To export a vector stroke definition. Notes: Stroke definitions (like colours) are only saved out when a node in the tree is found which makes use of the stroke. You should call this function before exporting any attribute which uses the stroke definition. It automatically checks if the stroke has already been saved, and will not save the definition more than once. When saving your reference to the stroke, save out the stroke's Handle as it's unique ID word. ********************************************************************************************/ BOOL StrokeComponent::ExportStroke(BaseCamelotFilter *pFilter, StrokeHandle Handle) { ERROR3IF(pFilter == NULL, "Illegal NULL params"); TRACEUSER( "Diccon", _T("Exporting Stroke\n")); // Find the stroke, and baulk if it's all gone wrong StrokeDefinition *pStroke = FindStroke(Handle); if (pStroke == NULL) { ERROR3("Attempt to save a deleted or non-existent stroke"); return(FALSE); } // Check if the definition has already been saved, in which case we don't need to do anything more if (pStroke->ReadIOStore()) return(TRUE); // We've got a stroke definition now, so let's chuck it out to the file BOOL ok = TRUE; CXaraFileRecord Rec(TAG_STROKEDEFINITION, TAG_STROKEDEFINITION_SIZE); if (ok) ok = Rec.Init(); if (ok) ok = Rec.WriteUINT32(Handle); UINT32 Flags = 0x200; // All vector strokes include a name (Named flag == 0x200) if (ok) { // Write the flags out. if (pStroke->IsRepeating()) // Repeating flag = 0x100 Flags |= 0x100; if (pStroke->OverrideFill()) // Fill override flag = 0x400 Flags |= 0x400; if (pStroke->OverrideTrans()) // Transparency override flag = 0x800 Flags |= 0x800; ok = Rec.WriteUINT32(Flags); } if (ok) { INT32 NumRepeats = 0; if(pStroke->IsRepeating()) { // Write the flags out. NumRepeats = pStroke->NumRepeats(); if(NumRepeats == 0) Flags |= 1; else Flags |= 2; } // Write Data1 - this contains the number of times the brush should repeat down the stroke ok = Rec.WriteUINT32(NumRepeats); } if (ok) ok = Rec.WriteUINT32(0); // Write Data2 - for now, this is always 0 if (ok && ((Flags & 0x200) != 0)) // Write the (optional) name field ok = Rec.WriteUnicode((TCHAR *)*(pStroke->GetStrokeName())); if (ok) pFilter->Write(&Rec); // And write out the record // Now, follow the definition record with the brush subtree if (ok) { Node *pNode = pStroke->GetStrokeTree(); // Find the root Spread if (pNode != NULL) pNode = pNode->FindFirstChild(); // Find the Layer if (pNode != NULL) pNode = pNode->FindFirstChild(); // Find the NodeGroup if (pNode == NULL) ok = FALSE; ERROR3IF(pNode == NULL || !pNode->IsCompound(), "Vector brush not in the format I expected"); // Write out the clipart subtree. We have to encapsulate it in DOWN and UP // records ourselves CXaraFileRecord DownRec(TAG_DOWN, 0); if (ok) pFilter->Write(&DownRec); ok = pFilter->WriteNodes(pNode); CXaraFileRecord UpRec(TAG_UP, 0); if (ok) pFilter->Write(&UpRec); } // Finally, mark this stroke as having been written out so we don't do it again if (ok) pStroke->SetIOStore(TRUE); return(ok); } /******************************************************************************************** > static BOOL ImportStroke(CXaraFileRecord* pRecord) Author: Jason_Williams (Xara Group Ltd) Created: 4/3/97 Inputs: pRecord - The TAG_STROKEDEFINITION record to import Returns: TRUE if Import was successful Purpose: To import a vector stroke definition ********************************************************************************************/ BOOL StrokeComponent::StartImportStroke(CamelotRecordHandler *pHandler, CXaraFileRecord *pRecord) { ImportHandle = 0xffffffff; ImportFlags = 0; ImportData1 = 0; ImportData2 = 0; pImportPreviousContext = NULL; pImportNewBrush = NULL; String_256 TempName; // Load the name into a nice large safe buffer // Import the data from the record if (!pRecord->ReadUINT32(&ImportHandle) || !pRecord->ReadUINT32(&ImportFlags) || !pRecord->ReadUINT32(&ImportData1) || !pRecord->ReadUINT32(&ImportData2)) { return(FALSE); } // If there is a name to be imported, read it as well if ((ImportFlags & 0x200) != 0 && !pRecord->ReadUnicode(&TempName)) return(FALSE); // We remember the imported flags and suchlike, which we will use in EndImportStroke. TempName.Left((StringBase *)&ImportedName, 31); // Create a spread and set up the import system to import the brush into it // If this fails, then it'll just find somewhere "sensible" to import into pImportNewBrush = new Spread; if (pImportNewBrush == NULL) return(FALSE); Layer *pBrushLayer = new Layer(pImportNewBrush, FIRSTCHILD, String_256(TEXT("Jason did this"))); if (pBrushLayer == NULL) { delete pImportNewBrush; pImportNewBrush = NULL; return(FALSE); } // Now, remember where we were importing into, and point the importer at our brush tree pImportPreviousContext = pHandler->GetInsertContext(); pHandler->SetInsertContextNode(pBrushLayer); return(TRUE); } /******************************************************************************************** > static BOOL StrokeComponent::EndImportStroke(CamelotRecordHandler *pHandler); Author: Jason_Williams (Xara Group Ltd) Created: 4/3/97 Inputs: pRecord - The TAG_STROKEDEFINITION record to import Returns: TRUE if Import was successful Purpose: To import a vector stroke definition ********************************************************************************************/ BOOL StrokeComponent::EndImportStroke(CamelotRecordHandler *pHandler) { ERROR3IF(pImportPreviousContext == NULL, "EndImportStroke - something hasn't gone too well"); // Restore the previous import context node pHandler->RestoreInsertContext(pImportPreviousContext); pImportPreviousContext = NULL; // --- Now, convert all IndexedColours (which are document-dependent) into standalone DocColours // This wouldn't be necessary, except that the DocColours we saved have magically been turned // back into local Indexedcolours by the export/import process. // BLOCK { Node *pCurNode = pImportNewBrush->FindFirstDepthFirst(); Node *pNextNode; while (pCurNode !=NULL) { // We may be about to chop this node out of the tree, so get the next node now pNextNode = pCurNode->FindNextDepthFirst(pImportNewBrush); // Use to scan the colour fields of the attribute. if (pCurNode->IsAnAttribute()) { PORTNOTE("colourmanager","Removed ColourManager usage") #ifndef EXCLUDE_FROM_XARALX UINT32 Context = 0; NodeAttribute *pNodeAttr = (NodeAttribute *) pCurNode; // Get the next colour field from the attribute DocColour *pColour = pNodeAttr->EnumerateColourFields(Context++); while (pColour != NULL) { // For each colour field, make sure the colour is a local DocColour so that // the sub-tree is entirely stand-alone if (pColour->FindParentIndexedColour() != NULL) { ColourGeneric ColDef; ColourContext *cc = ColourManager::GetColourContext(pColour->GetColourModel()); ERROR3IF(cc == NULL, "Can't find colour context?!"); // Get the IndexedColour definition as a standalone colour definition cc->ConvertColour(pColour->FindParentIndexedColour(), &ColDef); // Make the DocColour into a simple standalone "lookalike" of the parent colour *pColour = DocColour(pColour->GetColourModel(), &ColDef); } pColour = pNodeAttr->EnumerateColourFields(Context++); } #endif } pCurNode = pNextNode; } } // Create a new stroke definition from the imported brush // Read the imported data from ImportFlags, ImportData1, ImportData2 // (Currently, we only handle the Repeating, Optimal Repeating and Number of Repeating flags) BOOL Repeating = ((ImportFlags & 0x100) != 0); INT32 Repeats = 0; // If repeating a certain number of times, get the number of times, else assume 0 - optimal if((ImportFlags & 0xff) == 2) Repeats = (INT32)ImportData1; StrokeDefinition *pNewStroke = new StrokeDefinition(pImportNewBrush, Repeating, Repeats); if (pNewStroke == NULL) return(FALSE); pNewStroke->SetOverrideFill((ImportFlags & 0x400) != 0); pNewStroke->SetOverrideTrans((ImportFlags & 0x800) != 0); // Remember the handle used for the stroke in the file with the stroke so that // we can map any incoming handles into the real handles we are using internally. pNewStroke->SetIOStore(ImportHandle & 0x00ffffff); // And set the stroke's name, if any was supplied if (!ImportedName.IsEmpty()) pNewStroke->SetStrokeName(&ImportedName); // And add/merge this stroke into our global list AddNewStroke(pNewStroke); return(TRUE); } /******************************************************************************************** > static StrokeHandle StrokeComponent::FindImportedStroke(UINT32 ImportedHandle) Author: Jason_Williams (Xara Group Ltd) Created: 4/3/97 Inputs: Importedhandle - The handle which is used in the file being imported to reference the stroke. Returns: The StrokeHandle of the loaded stroke, or StrokeHandle_NoStroke if the stroke could not be found. Purpose: To match up a handle from the currently importing file to the real internal StrokeHandle of the imported StrokeDefinition ********************************************************************************************/ StrokeHandle StrokeComponent::FindImportedStroke(UINT32 ImportedHandle) { ImportedHandle &= 0x00ffffff; // Only the bottom 24 bits are relevant for (UINT32 Index = 0; Index < Used; Index++) { if (pStrokeList[Index] != NULL && pStrokeList[Index]->ReadIOStore() == ImportedHandle) return((StrokeHandle)Index); } return(StrokeHandle_NoStroke); } /****************************************************************************************** > static BOOL StrokeComponent::ExpandArray(void) Author: Jason_Williams (Xara Group Ltd) Created: 28/2/97 Outputs: On succesful exit, the member array of StrokeDefinition pointers will be bigger Returns: FALSE if it failed to allocate memory Purpose: (Internal method) Expands the storage structure of the stroke list to allow more entries to be used. Called automatically by AddNewStroke as necessary. Notes: Internal storage is an array of pointers to StrokeDefinitions NULL pointers beyond (& including) "Used" indicate free slots. NULL pointers before "Used" indicate deleted strokes - these slots should NOT be re-used, as there may still be references to them in the system. ******************************************************************************************/ BOOL StrokeComponent::ExpandArray(void) { // ****!!!!TODO - if we're multi-threading, this probably needs to be a critical section // because the list is global const INT32 AllocSize = CurrentSize + 64; if (pStrokeList == NULL) { pStrokeList = (StrokeDefinition **) CCMalloc(AllocSize * sizeof(StrokeDefinition *)); if (pStrokeList == NULL) return(FALSE); } else { // We have an array - we must make it larger StrokeDefinition **pNewBuf = (StrokeDefinition **) CCRealloc(pStrokeList, AllocSize * sizeof(StrokeDefinition *)); if (pNewBuf == NULL) return(FALSE); pStrokeList = pNewBuf; } // Success. Initalise all the new pointers to NULL for (UINT32 i = Used; i < CurrentSize; i++) pStrokeList[i] = NULL; // Update the current size value, and return success CurrentSize = AllocSize; return(TRUE); }