// $Id: capturemanager.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============================ */ /* */ // CaptureManager.CPP // // Created: 29/06/2004 by Phil // #include "camtypes.h" //#include "capturemanager.h" - in camtypes.h [AUTOMATICALLY REMOVED] #include "grndrgn.h" #include "clipattr.h" // so we know what a ClipRegionAttribute is. //CC_IMPLEMENT_DYNAMIC(CaptureManager, CCObject) CC_IMPLEMENT_DYNAMIC(Capture, CCObject) // Declare smart memory handling in Debug builds #define new CAM_DEBUG_NEW /******************************************************************************************** > Capture::Capture() Author: Phil_Martin (Xara Group Ltd) Created: 19/07/2004 Inputs: - Outputs: - Returns: - Purpose: Default Constructor for Capture Class Errors: - SeeAlso: - ********************************************************************************************/ Capture::Capture() { m_pOwner = NULL; m_pDirectBitmapSupplier = NULL; m_pClipRegionAttrValue = NULL; CaptureRect = DocRect(0,0,0,0); lpBitmapInfo = NULL; lpBits = NULL; CaptureMatrix = Matrix(); pColContext = NULL; info = CAPTUREINFO(ctDISABLED, cfNONE); dPixelsPerInch = 96; // m_ClipRegionMap.InitHashTable(17, FALSE); } /******************************************************************************************** > Capture::Capture(CCObject* pOwner, // New Capture constructor CAPTUREINFO cinfo, Matrix CaptureMatrix, DocRect CaptureRect, ColourContext* pCaptureColourContext ) Author: Phil_Martin (Xara Group Ltd) Created: 19/07/2004 Inputs: - Outputs: - Returns: - Purpose: New Capture Constructor for Capture Class Errors: - SeeAlso: - ********************************************************************************************/ Capture::Capture(CCObject* pOwner, // New Capture constructor CAPTUREINFO cinfo, Matrix cMatrix, DocRect cRect, double PixelsPerInch, ColourContext* pcColourContext ) { m_pOwner = pOwner; m_pDirectBitmapSupplier = NULL; m_pClipRegionAttrValue = NULL; CaptureRect = cRect; lpBitmapInfo = NULL; lpBits = NULL; PORTNOTE("other","Removed GRenderRegion::MakeGavinMatrix usage") #ifndef EXCLUDE_FROM_XARALX CaptureGMatrix = GRenderRegion::MakeGavinMatrix(cMatrix, cRect, PixelsPerInch); #endif CaptureMatrix = cMatrix; pColContext = pcColourContext; info = cinfo; dPixelsPerInch = PixelsPerInch; } /******************************************************************************************** > Capture::Capture(Capture* pSourceCapture, // Copy constructor BOOL bCopyBitmap) Author: Phil_Martin (Xara Group Ltd) Created: 19/07/2004 Inputs: - Outputs: - Returns: - Purpose: Copy Constructor for Capture Class Errors: - SeeAlso: - ********************************************************************************************/ Capture::Capture(Capture* pSourceCapture, // Copy constructor BOOL bCopyBitmap) { m_pOwner = pSourceCapture->m_pOwner; m_pDirectBitmapSupplier = pSourceCapture->m_pDirectBitmapSupplier; m_pClipRegionAttrValue = pSourceCapture->m_pClipRegionAttrValue; CaptureRect = pSourceCapture->CaptureRect; lpBitmapInfo = pSourceCapture->lpBitmapInfo; lpBits = pSourceCapture->lpBits; CaptureMatrix = pSourceCapture->CaptureMatrix; pColContext = pSourceCapture->pColContext; info = pSourceCapture->info; // Note that copying a master will create a master! dPixelsPerInch = pSourceCapture->dPixelsPerInch; if (bCopyBitmap && pSourceCapture->lpBitmapInfo && pSourceCapture->lpBits) { DIBUtil::CopyBitmap(pSourceCapture->lpBitmapInfo, pSourceCapture->lpBits, &lpBitmapInfo, &lpBits); } // CopyBitmap doesn't copy compression flag correctly... lpBitmapInfo->bmiHeader.biCompression = pSourceCapture->lpBitmapInfo->bmiHeader.biCompression; } /******************************************************************************************** > BOOL Capture::AllocateDIB(BOOL bTransparent = FALSE) Author: Phil_Martin (Xara Group Ltd) Created: 19/07/2004 Inputs: - Outputs: - Returns: - Purpose: Default Destructor for CaptureManager Class Errors: - SeeAlso: - ********************************************************************************************/ /*BOOL Capture::AllocateDIB(BOOL bTransparent) { ERROR2(FALSE, "Unimplemented!"); // NB Millipoint endpoints don't necessarily fall on exact pixel boundaries. // Hence use following function to find out which pixels the millipoints fall on RECT Rect = CalculateWinRect(CaptureMatrix, CaptureRect, PixelsPerInch); UINT32 PixelWidth = Rect.right-Rect.left; UINT32 PixelHeight = Rect.bottom-Rect.top; UINT32 bpp = 32; // TRACEUSER( "Gerry", _T("Creating offscreen bitmap (%d, %d)\n"), PixelWidth, PixelHeight); if (PixelWidth==0 || PixelHeight==0) return FALSE; lpBitmapInfo = ::AllocDIB( PixelWidth, PixelHeight, bpp, &lpBits, NULL, FALSE); // don't use limited mem manager if (lpBitmapInfo==NULL || lpBits==NULL) { ENSURE(FALSE,"Couldn't create bitmap for offscreen rendering."); return FALSE; } LPBITMAPINFOHEADER bh = &lpBitmapInfo->bmiHeader; bh->biCompression = bTransparent ? 0x80000001: BI_RGB; // see GDraw docs on GDraw_SetDIBitmap bh->biXPelsPerMeter = PixelsPerMeterAtCurrentViewScale(ScaleFactor); // Not used by GDraw - just for completeness sake bh->biYPelsPerMeter = PixelsPerMeterAtCurrentViewScale(ScaleFactor); // Not used by GDraw // Success return TRUE; } */ /******************************************************************************************** > BOOL Capture::FreeDIB() Author: Phil_Martin (Xara Group Ltd) Created: 19/07/2004 Inputs: - Outputs: - Returns: - Purpose: Default Destructor for CaptureManager Class Errors: - SeeAlso: - ********************************************************************************************/ BOOL Capture::FreeDIB() { ::FreeDIB(lpBitmapInfo, lpBits, NULL, FALSE); lpBitmapInfo = NULL; // Owns bitmap will now return FALSE lpBits = NULL; return FALSE; } /******************************************************************************************** > Capture::~Capture() Author: Phil_Martin (Xara Group Ltd) Created: 19/07/2004 Inputs: - Outputs: - Returns: - Purpose: Default Destructor for CaptureManager Class Errors: - SeeAlso: - ********************************************************************************************/ Capture::~Capture() { RemoveAllCachedClipRegions(); if (m_pClipRegionAttrValue) { delete m_pClipRegionAttrValue; m_pClipRegionAttrValue = NULL; } } /******************************************************************************************** > void Capture::SetTransparent(BOOL bNewState) Author: Phil_Martin (Xara Group Ltd) Created: 19/07/2004 Inputs: bNewState - TRUE if captured bitmap should be made transparent FALSE if captured bitmap should be made opaque Outputs: - Returns: - Purpose: Change the transparency of a captured bitmap Errors: - SeeAlso: - ********************************************************************************************/ void Capture::SetTransparent(BOOL bNewState) { if (lpBitmapInfo && lpBits && lpBitmapInfo->bmiHeader.biBitCount==32) { lpBitmapInfo->bmiHeader.biCompression = bNewState ? 0x80000001 : BI_RGB; UINT32 BmpSize = GetDIBBitsSize(&lpBitmapInfo->bmiHeader); UINT32 Index = 0; LPBYTE pSetBits = lpBits; if (bNewState) { // ReInit bitmap to be fully transparent while(Index < BmpSize) { // initial values for using internal alpha channelled format // fully transparent black bacground pSetBits[Index++] = 0x00; pSetBits[Index++] = 0x00; pSetBits[Index++] = 0x00; pSetBits[Index++] = 0xFF; } } else { // ReInit bitmap to be fully opaque while(Index < BmpSize) { // fully opaque white background pSetBits[Index++] = 0xFF; pSetBits[Index++] = 0xFF; pSetBits[Index++] = 0xFF; pSetBits[Index++] = 0x00; } } } else { ERROR3("SetTransparency called on empty/non-32BPP bitmap"); } } /******************************************************************************************** > BOOL Capture::ConsumeDirectBitmap(NodeRenderableInk* pSupplier) Author: Phil_Martin (Xara Group Ltd) Created: 02/08/2005 Inputs: - Outputs: - Returns: - Purpose: Consume the supplied bitmap if the supplier is right Errors: - SeeAlso: - ********************************************************************************************/ BOOL Capture::ConsumeDirectBitmap(NodeRenderableInk* pSupplier) { if (m_pDirectBitmapSupplier!=pSupplier || info.caFlags.Direct==FALSE) return FALSE; // TODO: Could grab some info about the direct bitmap here? return TRUE; } /******************************************************************************************** > const REGION* Capture::GetClipRegion(ClipRegionAttribute* pClipAttr) Author: Phil_Martin (Xara Group Ltd) Created: 03/10/2005 Inputs: - Outputs: - Returns: - Purpose: - Errors: - SeeAlso: - ********************************************************************************************/ const REGION* Capture::GetCachedClipRegion(ClipRegionAttribute* pClipAttr) { ClipRegionMap::const_iterator iter = m_ClipRegionMap.find( pClipAttr ); if( m_ClipRegionMap.end() == iter ) return NULL; return (REGION *)iter->second; } /******************************************************************************************** > void Capture::SetCachedClipRegion(ClipRegionAttribute* pClipAttr, const REGION* pClipRegion) Author: Phil_Martin (Xara Group Ltd) Created: 03/10/2005 Inputs: - Outputs: - Returns: - Purpose: - Errors: - SeeAlso: - ********************************************************************************************/ void Capture::SetCachedClipRegion(ClipRegionAttribute* pClipAttr, const REGION* pClipRegion) { m_ClipRegionMap[pClipAttr] = (void *)pClipRegion; } /******************************************************************************************** > void Capture::RemoveCachedClipRegion(ClipRegionAttribute* pClipAttr) Author: Phil_Martin (Xara Group Ltd) Created: 03/10/2005 Inputs: - Outputs: - Returns: - Purpose: - Errors: - SeeAlso: - ********************************************************************************************/ void Capture::RemoveCachedClipRegion(ClipRegionAttribute* pClipAttr) { ClipRegionMap::iterator iter = m_ClipRegionMap.find( pClipAttr ); if( m_ClipRegionMap.end() != iter ) { if (iter->second != NULL) delete []( (BYTE *)iter->second ); m_ClipRegionMap.erase( iter ); } } /******************************************************************************************** > void Capture::RemoveAllCachedClipRegions() Author: Phil_Martin (Xara Group Ltd) Created: 03/10/2005 Inputs: - Outputs: - Returns: - Purpose: - Errors: - SeeAlso: - ********************************************************************************************/ void Capture::RemoveAllCachedClipRegions() { ClipRegionMap::const_iterator iter = m_ClipRegionMap.begin(); for( ; iter != m_ClipRegionMap.end(); ++iter ) { if( iter->second != NULL ) delete []( (BYTE *)iter->second ); } m_ClipRegionMap.clear(); }