// $Id: bmpexdoc.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============================ */ #include "camtypes.h" #include "bmpexdoc.h" #include "layer.h" //#include "spread.h" - in camtypes.h [AUTOMATICALLY REMOVED] //#include "will2.h" // For layer name #include "nodebmp.h" #include "bitmpinf.h" //#include "fillval.h" - in camtypes.h [AUTOMATICALLY REMOVED] #include "lineattr.h" // AttrStrokeColour //#include "fillattr.h" // AttrFillGeometry - in camtypes.h [AUTOMATICALLY REMOVED] DECLARE_SOURCE("$Revision: 1282 $"); CC_IMPLEMENT_DYNAMIC(BitmapExportDocument, Document) #define new CAM_DEBUG_NEW /******************************************************************************************** > BitmapExportDocument::BitmapExportDocument(BOOL fHide = TRUE) Author: Gerry_Iles (Xara Group Ltd) Created: 11/6/96 Inputs: fHide - whether this document is invisible or not (default is invisible) Purpose: BitmapExportDocument constructor. ********************************************************************************************/ BitmapExportDocument::BitmapExportDocument(BOOL fHide) : Document(fHide), pBitmapNode(0) { // Empty. } /******************************************************************************************** > BOOL BitmapExportDocument::Init(KernelBitmap* pBitmap, const DocRect& RectToExport) Author: Gerry_Iles (Xara Group Ltd) Created: 11/6/96 Inputs: pBitmap - pointer to the kernel bitmap to be inserted into the document (can't be const 'cos KernelBitmapRef::SetBitmap isn't) RectToExport - DocRect reference of the rectangle to export Returns: FALSE if it failed Purpose: This method initialises the document It calls down to Document::Init, then adds an insertion Layer node to the bottom of the basic doc tree. It then adds a totally transparent NodeRectangle and a NodeBitmap with the default NodeBitmap attributes referencing the specified KernelBitmap SeeAlso: Document::Init; Document::InitTree ********************************************************************************************/ BOOL BitmapExportDocument::Init(KernelBitmap* pBitmap, const DocRect& RectToExport) { // Don't attach any CCamDoc. if (!Document::Init(0)) return(FALSE); Node *pSpread = FindFirstSpread(); ERROR3IF(pSpread == NULL, "No Spread in document!"); Node *pLayer = pSpread->FindFirstChild(); ERROR3IF(pLayer == NULL, "No Spread-child in document!"); // Store away the rectangle ExportRect = RectToExport; // Now scan the children of the first spread until we find a layer, or run out of nodes while (pLayer != NULL && !pLayer->IsLayer()) pLayer = pLayer->FindNext(); if (pLayer == NULL) // No Layer, so we'd better add one for ourselves { String_256 LayerID = String_256(_R(IDS_K_CLIPINT_LAYERNAME)); pLayer = new Layer(pSpread, LASTCHILD, LayerID); if (pLayer == NULL) return(InitFailed()); } // Create a new NodeRect NodeRect* pRectNode = new NodeRect(pLayer, FIRSTCHILD); // Failed so cleanup and exit if (pRectNode == NULL) return(InitFailed()); // Initilaise the node if (!pRectNode->SetUpPath(6,6)) return(InitFailed()); // Create the rectangle pRectNode->CreateShape(ExportRect); // Give the rectangle a line colour #if 0 // This memory leaks a StrokeColourAttribute StrokeColourAttribute* pAttrValue = new StrokeColourAttribute(DocColour(COLOUR_TRANS)); if (pAttrValue == NULL) return(InitFailed()); NodeAttribute* pAttr = pAttrValue->MakeNode(); if (pAttr == NULL) return(InitFailed()); // Attach the attribute to the rectangle pAttr->AttachNode(pRectNode, FIRSTCHILD); #else // Do what ApplyDefaultBitmapAttrs does Node* pLineColAttr = new AttrStrokeColour(); if (pLineColAttr == NULL) return(InitFailed()); DocColour none(COLOUR_NONE); ((AttrFillGeometry*)pLineColAttr)->SetStartColour(&none); pLineColAttr->AttachNode(pRectNode, FIRSTCHILD); #endif // Create a NodeBitmap (don't attach it to the tree straight away 'cos we // have to put the attributes on it first) pBitmapNode = new NodeBitmap(); if (pBitmapNode == NULL) return(InitFailed()); if (!pBitmapNode->SetUpPath(6,6)) return(InitFailed()); pBitmapNode->CreateShape(ExportRect); if (!SetBitmap(pBitmap)) return(InitFailed()); // Set the bitmap's attributes // This must be done before the NodeBitmap is inserted into the tree if (!pBitmapNode->ApplyDefaultBitmapAttrs(NULL)) return(InitFailed()); // Attach it to the tree as the next sibling of the rectangle pBitmapNode->AttachNode(pRectNode, NEXT); // Success... return(TRUE); } /******************************************************************************************** > BOOL BitmapExportDocument::SetBitmap(KernelBitmap* pBitmap) Author: Gerry_Iles (Xara Group Ltd) Created: 12/6/96 Inputs: pBitmap - pointer to the kernel bitmap to be inserted into the document (can't be const 'cos KernelBitmapRef::SetBitmap isn't) Returns: FALSE if it failed Purpose: This function sets the bitmap method initialises the document It is an internal method, called by Initialise() It calls down to Document::Init, then adds an insertion Layer node to the bottom of the basic doc tree. It then adds a NodeBitmap referencing the specified KernelBitmap ********************************************************************************************/ BOOL BitmapExportDocument::SetBitmap(KernelBitmap* pBitmap) { TRACEUSER( "Gerry", _T("BitmapExportDocument::SetBitmap()\n")); ERROR2IF(pBitmap == NULL, FALSE, "NULL bitmap passed to SetBitmap()\n"); ERROR2IF(pBitmapNode == NULL, FALSE, "pBitmapNode is NULL in SetBitmap()\n"); // Attach the bitmap to our node // // Note: Neville 18/9/97 // If the bitmap is a lone bitmap i.e. not attached to any document, then we // must attach it properly to this document so that it gets cleaned out // rather than memory leaking. If not, then we are just temporarily using // the bitmap and so everything should be ok. We need to work in the following // situations:- // - Selecting multiple bitmaps in the bitmap gallery and saving as animated GIF. // Here we are passed a list of bitmaps which are already in use in the source // document. // - Making a new clipart index for bitmaps. Here we are passed a brand spanking // new bitmap which is not on any lists. This used to memory leak. BitmapList* pBmpList = pBitmap->GetParentBitmapList(); if (pBmpList != NULL) { // This will memory leak a kernel bitmap each time if it is not on a parent // document list. You will also end up with a KernelBitmap which contains // a deleted ActualBitmap pointer, which is very bad! pBitmapNode->GetBitmapRef()->SetBitmap(pBitmap); } else { // This is the same technique that the BaseBitmapFilter uses and so must be correct! pBitmapNode->GetBitmapRef()->Attach(pBitmap, this); if (pBitmapNode->GetBitmap() != pBitmap) { // It didn't use the bitmap we gave it, so we can delete it delete pBitmap; } } BitmapInfo Info; pBitmapNode->GetBitmap()->ActualBitmap->GetInfo(&Info); // Calculate the rectangle for this bitmap // We make it as large as possible (within the ExportRect) // without changing the aspect ration INT32 RectWidth = ExportRect.Width(); INT32 RectHeight = ExportRect.Height(); double xScale = (double) RectWidth / (double) Info.RecommendedWidth; double yScale = (double) RectHeight / (double) Info.RecommendedHeight; DocRect BitmapRect; BitmapRect.lo.x = 0; BitmapRect.lo.y = 0; if (xScale < yScale) { // Bitmap will be full width BitmapRect.hi.x = RectWidth; BitmapRect.hi.y = (INT32) ((double) Info.RecommendedHeight * xScale); // Center the bitmap vertically in the rectangle BitmapRect.Translate(0, (RectHeight - BitmapRect.Height()) / 2); } else { // Bitmap will be full height BitmapRect.hi.x = (INT32) ((double) Info.RecommendedWidth * yScale); BitmapRect.hi.y = RectHeight; // Center the bitmap horizontally in the rectangle BitmapRect.Translate((RectWidth - BitmapRect.Width()) / 2, 0); } // Delete the node's path // Because CreateShape inserts a rectangle at the beginning of the path pBitmapNode->InkPath.DeleteFromElement(0); // And create the shape pBitmapNode->CreateShape(BitmapRect); return(TRUE); } /******************************************************************************************** > BOOL BitmapExportDocument::InitFailed(void) Author: Gerry_Iles (Xara Group Ltd) Created: 12/6/96 Inputs: - Returns: See Document::InitFailed() Purpose: This function deletes the NodeBitmap and then calls Document::InitFailed() SeeAlso: Document::InitFailed ********************************************************************************************/ BOOL BitmapExportDocument::InitFailed(void) { if (pBitmapNode) { delete pBitmapNode; pBitmapNode = NULL; } return(Document::InitFailed()); }