144 lines
5.2 KiB
C++
144 lines
5.2 KiB
C++
/*
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* (c) Copyright Ascensio System SIA 2010-2023
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*
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* This program is a free software product. You can redistribute it and/or
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* modify it under the terms of the GNU Affero General Public License (AGPL)
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* version 3 as published by the Free Software Foundation. In accordance with
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* Section 7(a) of the GNU AGPL its Section 15 shall be amended to the effect
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* that Ascensio System SIA expressly excludes the warranty of non-infringement
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* of any third-party rights.
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*
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* This program is distributed WITHOUT ANY WARRANTY; without even the implied
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* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For
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* details, see the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
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*
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* You can contact Ascensio System SIA at 20A-6 Ernesta Birznieka-Upish
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* street, Riga, Latvia, EU, LV-1050.
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*
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* The interactive user interfaces in modified source and object code versions
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* of the Program must display Appropriate Legal Notices, as required under
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* Section 5 of the GNU AGPL version 3.
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*
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* Pursuant to Section 7(b) of the License you must retain the original Product
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* logo when distributing the program. Pursuant to Section 7(e) we decline to
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* grant you any rights under trademark law for use of our trademarks.
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*
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* All the Product's GUI elements, including illustrations and icon sets, as
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* well as technical writing content are licensed under the terms of the
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* Creative Commons Attribution-ShareAlike 4.0 International. See the License
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* terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
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*
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*/
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#include "./officedrawingfile.h"
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#include "./Graphics.h"
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CBgraFrame* GetFrame(IOfficeDrawingFile* pFile, int nPageIndex, int nRasterW, int nRasterH, bool bIsFlip, bool bIsSwapRGB,
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NSFonts::IFontManager* pFonts = NULL, int nBackgroundColor = 0xFFFFFF, bool bIsDarkMode = false, int nBackgroundOpacity = 0xFF)
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{
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NSFonts::IFontManager *pFontManager = pFonts;
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if (!pFontManager)
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{
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NSFonts::IApplicationFonts* pApplicationFonts = pFile->GetFonts();
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if (!pApplicationFonts)
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return NULL;
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pFontManager = pApplicationFonts->GenerateFontManager();
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NSFonts::IFontsCache* pFontCache = NSFonts::NSFontCache::Create();
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pFontCache->SetStreams(pApplicationFonts->GetStreams());
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pFontManager->SetOwnerCache(pFontCache);
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}
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else
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{
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pFontManager->AddRef();
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}
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NSGraphics::IGraphicsRenderer* pRenderer = NSGraphics::Create();
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pRenderer->SetFontManager(pFontManager);
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double dPageDpiX, dPageDpiY;
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double dWidth, dHeight;
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pFile->GetPageInfo(nPageIndex, &dWidth, &dHeight, &dPageDpiX, &dPageDpiY);
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int nWidth = (nRasterW > 0) ? nRasterW : ((int)dWidth * 96 / dPageDpiX);
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int nHeight = (nRasterH > 0) ? nRasterH : ((int)dHeight * 96 / dPageDpiY);
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BYTE* pBgraData = new(std::nothrow) BYTE[nWidth * nHeight * 4];
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if (!pBgraData)
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{
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RELEASEINTERFACE(pFontManager);
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RELEASEOBJECT(pRenderer);
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return NULL;
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}
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if (0xFFFFFF == nBackgroundColor)
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{
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memset(pBgraData, 0xff, nWidth * nHeight * 4);
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}
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else
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{
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unsigned int nColor = (unsigned int)nBackgroundColor;
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nColor = (nBackgroundOpacity << 24) | nColor;
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unsigned int nSize = (unsigned int)(nWidth * nHeight);
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unsigned int* pTemp = (unsigned int*)pBgraData;
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for (unsigned int i = 0; i < nSize; ++i)
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*pTemp++ = nColor;
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}
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CBgraFrame* pFrame = new CBgraFrame();
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pFrame->put_Data(pBgraData);
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pFrame->put_Width(nWidth);
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pFrame->put_Height(nHeight);
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pFrame->put_Stride((bIsFlip ? 4 : -4) * nWidth);
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pRenderer->CreateFromBgraFrame(pFrame);
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pRenderer->SetSwapRGB(bIsSwapRGB);
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if (bIsDarkMode)
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pRenderer->CommandLong(c_nDarkMode, 1);
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if (odftPDF == pFile->GetType())
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{
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dWidth *= 25.4 / dPageDpiX;
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dHeight *= 25.4 / dPageDpiY;
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}
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pRenderer->put_Width(dWidth);
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pRenderer->put_Height(dHeight);
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bool bBreak = false;
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pFile->DrawPageOnRenderer(pRenderer, nPageIndex, &bBreak);
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RELEASEINTERFACE(pFontManager);
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RELEASEOBJECT(pRenderer);
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return pFrame;
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}
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unsigned char* IOfficeDrawingFile::ConvertToPixels(int nPageIndex, int nRasterW, int nRasterH,
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bool bIsFlip, NSFonts::IFontManager* pFonts, int nBackgroundColor, bool bIsDarkMode, int nBackgroundOpacity)
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{
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CBgraFrame* pFrame = GetFrame(this, nPageIndex, nRasterW, nRasterH, bIsFlip, true, pFonts, nBackgroundColor, bIsDarkMode, nBackgroundOpacity);
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if (!pFrame)
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return NULL;
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unsigned char* pData = pFrame->get_Data();
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pFrame->ClearNoAttack();
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RELEASEOBJECT(pFrame);
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return pData;
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}
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void IOfficeDrawingFile::ConvertToRaster(int nPageIndex, const std::wstring& path, int nImageType, const int nRasterW, const int nRasterH,
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bool bIsFlip, NSFonts::IFontManager* pFonts, int nBackgroundColor, bool bIsDarkMode, int nBackgroundOpacity)
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{
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CBgraFrame* pFrame = GetFrame(this, nPageIndex, nRasterW, nRasterH, bIsFlip, false, pFonts, nBackgroundColor, bIsDarkMode, nBackgroundOpacity);
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if (!pFrame)
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return;
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pFrame->SaveFile(path, nImageType);
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RELEASEOBJECT(pFrame);
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}
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