5.23

1 files changed, 0 insertions, 486 deletions

diff --git a/lib/Thumbnail/thumbnail.cpp b/lib/Thumbnail/thumbnail.cpp
deleted file mode 100644
index 53c30bc3..00000000
--- a/lib/Thumbnail/thumbnail.cpp
+++ /dev/null
@@ -1,486 +0,0 @@
-// **************************************************************************
-// * This file is part of the FreeFileSync project. It is distributed under *
-// * GNU General Public License: http://www.gnu.org/licenses/gpl.html       *
-// * Copyright (C) Zenju (zenju AT gmx DOT de) - All Rights Reserved        *
-// **************************************************************************
-
-#include "thumbnail.h"
-#include <algorithm>
-#include <string>
-
-#define WIN32_LEAN_AND_MEAN
-#include <zen/win.h>
-#include <zen/win_ver.h>
-#include <zen/sys_error.h>
-
-#define STRICT_TYPED_ITEMIDS //better type safety for IDLists
-#include <Shlobj.h>
-
-#include <Shellapi.h>
-#include <CommonControls.h>
-
-#include <zen/com_error.h>
-#include <zen/com_ptr.h>
-#include <zen/string_tools.h>
-#include <zen/scope_guard.h>
-#include <zen/basic_math.h>
-//#include <zen/perf.h>
-
-using namespace zen;
-
-
-namespace
-{
-thumb::ImageData* allocImageData(int width, int height) //throw SysError; return value always bound!
-{
-    ZEN_COM_ASSERT(width >= 0 && height >= 0); //throw SysError
-
-    std::unique_ptr<thumb::ImageData> idata = make_unique<thumb::ImageData>();
-
-    idata->width  = width;
-    idata->height = height;
-    idata->rgb    = new unsigned char[width * height * 4];
-    idata->alpha  = idata->rgb + width * height * 3;
-
-    return idata.release();
-}
-
-void releaseImageData_impl(const thumb::ImageData* id)
-{
-    if (id)
-    {
-        delete [] id->rgb;
-        delete id;
-    }
-}
-
-
-//caller takes ownership!
-HICON createIconFromBitmap(HBITMAP bitmap) //throw SysError
-{
-    BITMAP bmpInfo = {};
-    ZEN_COM_ASSERT(::GetObject(bitmap,          //__in   HGDIOBJ hgdiobj,
-                               sizeof(bmpInfo), //__in   int cbBuffer,
-                               &bmpInfo));      //__out  LPVOID lpvObject
-    //no documented extended error info
-
-    HDC hScreenDC = ::GetDC(nullptr);
-    ZEN_COM_ASSERT(hScreenDC); //no documented extended error info
-    ZEN_ON_SCOPE_EXIT(::ReleaseDC(nullptr, hScreenDC));
-
-    HBITMAP bitmapMask = ::CreateCompatibleBitmap(hScreenDC, bmpInfo.bmWidth, bmpInfo.bmHeight);
-    ZEN_COM_ASSERT(bitmapMask); //no documented extended error info
-    ZEN_ON_SCOPE_EXIT(::DeleteObject(bitmapMask));
-
-    ICONINFO iconInfo = {};
-    iconInfo.fIcon    = true;
-    iconInfo.hbmColor = bitmap;
-    iconInfo.hbmMask  = bitmapMask;
-
-    HICON result = ::CreateIconIndirect(&iconInfo);
-    if (!result) throw SysError(formatSystemError(L"CreateIconIndirect", getLastError()));
-    return result;
-}
-
-
-//caller takes ownership!
-thumb::ImageData* convertToImageData(HBITMAP bmp) //throw SysError
-{
-    //GetDIBits  ????
-
-    BITMAP bmpInfo = {};
-    ZEN_COM_ASSERT(::GetObject(bmp,            //__in   HGDIOBJ hgdiobj,
-                               sizeof(BITMAP), //__in   int cbBuffer,
-                               &bmpInfo));     //__out  LPVOID lpvObject
-
-    HDC hScreenDC = ::GetDC(nullptr);
-    ZEN_COM_ASSERT(hScreenDC); //no documented extended error info
-    ZEN_ON_SCOPE_EXIT(::ReleaseDC(nullptr, hScreenDC));
-
-    //32-bit RGB with alpha channel support
-    BITMAPV5HEADER bi = {};
-    bi.bV5Size     = sizeof(bi);
-    bi.bV5Width    = bmpInfo.bmWidth;
-    bi.bV5Height   = -bmpInfo.bmHeight; //negative for top left origin
-    bi.bV5Planes   = 1;
-    bi.bV5BitCount = 32;
-    bi.bV5Compression = BI_BITFIELDS;
-    bi.bV5AlphaMask =  0xFF000000;
-    bi.bV5RedMask   =  0x00FF0000;
-    bi.bV5GreenMask =  0x0000FF00;
-    bi.bV5BlueMask  =  0x000000FF;
-    unsigned char* bitsRgbBmp = nullptr;
-
-    HBITMAP rgbBmp = ::CreateDIBSection(hScreenDC,      //_In_   HDC hdc,
-                                        reinterpret_cast<const BITMAPINFO*>(&bi), //_In_   const BITMAPINFO *pbmi,
-                                        DIB_RGB_COLORS, //_In_   UINT iUsage,
-                                        reinterpret_cast<VOID**>(&bitsRgbBmp), //_Out_  VOID **ppvBits,
-                                        nullptr,        //_In_   HANDLE hSection,
-                                        0);             //_In_   DWORD dwOffset
-    ZEN_COM_ASSERT(rgbBmp); //no documented extended error info
-    ZEN_ON_SCOPE_EXIT(::DeleteObject(rgbBmp););
-    ZEN_COM_ASSERT(bitsRgbBmp); //check after rgbBmp is owned by us
-
-    HDC memDCSrc = ::CreateCompatibleDC(hScreenDC);
-    ZEN_COM_ASSERT(memDCSrc); //no documented extended error info
-    ZEN_ON_SCOPE_EXIT(::DeleteDC(memDCSrc));
-
-    HDC memDCTrg = ::CreateCompatibleDC(hScreenDC);
-    ZEN_COM_ASSERT(memDCTrg); //no documented extended error info
-    ZEN_ON_SCOPE_EXIT(::DeleteDC(memDCTrg));
-
-    HGDIOBJ hgdiSrcOld = ::SelectObject(memDCSrc, bmp);
-    ZEN_COM_ASSERT(hgdiSrcOld); //no documented extended error info
-    ZEN_ON_SCOPE_EXIT(::SelectObject(memDCSrc, hgdiSrcOld));
-
-    HGDIOBJ hgdiTrgOld = ::SelectObject(memDCTrg, rgbBmp);
-    ZEN_COM_ASSERT(hgdiTrgOld); //no documented extended error info
-    ZEN_ON_SCOPE_EXIT(::SelectObject(memDCTrg, hgdiTrgOld));
-
-    if (!::BitBlt(memDCTrg, //_In_  HDC hdcDest,
-                  0,        //_In_  int nXDest,
-                  0,        //_In_  int nYDest,
-                  bmpInfo.bmWidth,  //_In_  int nWidth,
-                  bmpInfo.bmHeight, //_In_  int nHeight,
-                  memDCSrc, //_In_  HDC hdcSrc,
-                  0,        //_In_  int nXSrc,
-                  0,        //_In_  int nYSrc,
-                  SRCCOPY)) //_In_  DWORD dwRop
-        throw SysError(formatSystemError(L"BitBlt", getLastError()));
-
-    //CreateDIBSection: "Access to the bitmap must be synchronized. [...]. This applies to any use of the pointer to the bitmap bit values."
-    /*bool rv = */
-    ::GdiFlush();
-
-    thumb::ImageData* imgOut = allocImageData(bmpInfo.bmWidth, bmpInfo.bmHeight); //throw SysError
-    ScopeGuard guardImgData = zen::makeGuard([&] { releaseImageData_impl(imgOut); });
-
-    unsigned char* rgbPtr   = imgOut->rgb;
-    unsigned char* alphaPtr = imgOut->alpha;
-
-    for (int i = 0; i < bmpInfo.bmWidth * bmpInfo.bmHeight; ++i)
-    {
-        unsigned char b = *bitsRgbBmp++;
-        unsigned char g = *bitsRgbBmp++;
-        unsigned char r = *bitsRgbBmp++;
-        unsigned char a = *bitsRgbBmp++;
-
-        *rgbPtr++ = r;
-        *rgbPtr++ = g;
-        *rgbPtr++ = b;
-        *alphaPtr++ = a;
-    }
-
-    guardImgData.dismiss();
-    return imgOut;
-}
-
-
-//caller takes ownership!
-const thumb::ImageData* getThumbnail_impl(const wchar_t* filename, int requestedSize) //throw SysError
-{
-    const std::wstring filenameStr(filename);
-
-    ComPtr<IShellFolder> desktopFolder;
-    ZEN_COM_CHECK(::SHGetDesktopFolder(desktopFolder.init())); //throw SysError
-    ZEN_COM_ASSERT(desktopFolder); //throw SysError -> better safe than sorry?
-
-    PIDLIST_RELATIVE pidlFolder = nullptr;
-    {
-        std::wstring pathName = beforeLast(filenameStr, L'\\');
-        ZEN_COM_CHECK(desktopFolder->ParseDisplayName(nullptr,     // [in]       HWND hwnd,
-                                                      nullptr,     // [in]       IBindCtx *pbc,
-                                                      const_cast<LPWSTR>(pathName.c_str()), // [in]       LPWSTR pszDisplayName,
-                                                      nullptr,     // [out]      ULONG *pchEaten,
-                                                      &pidlFolder, // [out]      PIDLIST_RELATIVE* ppidl,
-                                                      nullptr));   // [in, out]  ULONG *pdwAttributes
-    }
-    ZEN_COM_ASSERT(pidlFolder);
-    ZEN_ON_SCOPE_EXIT(::ILFree(pidlFolder)); //older version: ::CoTaskMemFree
-
-    ComPtr<IShellFolder> imageFolder;
-    ZEN_COM_CHECK(desktopFolder->BindToObject(pidlFolder, // [in]   PCUIDLIST_RELATIVE pidl,
-                                              nullptr,    // [in]   IBindCtx *pbc,
-                                              IID_PPV_ARGS(imageFolder.init())));
-    ZEN_COM_ASSERT(imageFolder);
-
-    PIDLIST_RELATIVE pidImage = nullptr;
-    {
-        std::wstring shortName = afterLast(filenameStr, L'\\');
-        ZEN_COM_CHECK(imageFolder->ParseDisplayName(nullptr,   // [in]       HWND hwnd,
-                                                    nullptr,   // [in]       IBindCtx *pbc,
-                                                    const_cast<LPWSTR>(shortName.c_str()), // [in]       LPWSTR pszDisplayName,
-                                                    nullptr,   // [out]      ULONG *pchEaten,
-                                                    &pidImage, // [out]      PIDLIST_RELATIVE *ppidl,
-                                                    nullptr)); // [in, out]  ULONG *pdwAttributes
-    }
-    ZEN_COM_ASSERT(pidImage);
-    ZEN_ON_SCOPE_EXIT(::ILFree(pidImage)); //older version: ::CoTaskMemFree
-
-    ComPtr<IExtractImage> extractImage;
-    ZEN_COM_CHECK(imageFolder->GetUIObjectOf(nullptr,           // [in]       HWND hwndOwner,
-                                             1,                 // [in]       UINT cidl,
-                                             reinterpret_cast<PCUITEMID_CHILD_ARRAY>(&pidImage),            // [in]       PCUITEMID_CHILD_ARRAY apidl,
-                                             //this is where STRICT_TYPED_ITEMIDS gets us ;)
-                                             IID_IExtractImage, // [in]       REFIID riid,
-                                             nullptr,           // [in, out]  UINT *rgfReserved,
-                                             reinterpret_cast<void**>(extractImage.init()))); // [out]      void **ppv
-    ZEN_COM_ASSERT(extractImage);
-
-    {
-        wchar_t pathBuffer[MAX_PATH];
-        DWORD priority = 0;
-        const SIZE prgSize = { requestedSize, requestedSize };
-        DWORD clrDepth = 32; //"recommended color depth"
-        DWORD flags = IEIFLAG_SCREEN | IEIFLAG_OFFLINE;
-
-        ZEN_COM_CHECK(extractImage->GetLocation(pathBuffer, // [out]      LPWSTR pszPathBuffer,
-                                                MAX_PATH,   // [in]       DWORD cchMax,
-                                                &priority,  // [out]      DWORD *pdwPriority,
-                                                &prgSize,   // [in]       const SIZE *prgSize,
-                                                clrDepth,   // [in]       DWORD dwRecClrDepth,
-                                                &flags));   // [in, out]  DWORD *pdwFlags
-    }
-
-    HBITMAP bitmap = nullptr;
-    ZEN_COM_CHECK(extractImage->Extract(&bitmap));
-    ZEN_COM_ASSERT(bitmap);
-    ZEN_ON_SCOPE_EXIT(::DeleteObject(bitmap));
-
-    return convertToImageData(bitmap); //throw SysError, pass ownership
-}
-
-
-const bool wereVistaOrLater = vistaOrLater(); //thread-safety: init at startup
-
-//caller takes ownership!
-const thumb::ImageData* getIconByIndex_impl(int iconIndex, thumb::IconSizeType st) //throw SysError
-{
-    //Note:
-    //- using IExtractIcon::Extract is *no* alternative, just as ::SHGetFileInfo(), it only supports small (16x16) and large (32x32) icons
-    //- IShellItemImageFactory::GetImage requires Vista or later
-
-    using namespace thumb;
-    int requestedSize = 16;
-    int shilIconType = SHIL_SMALL; //16x16, size can be customized by the user.
-    {
-        if (!wereVistaOrLater &&  //XP doesn't have jumbo icons
-            (st == ICON_SIZE_128 ||
-             st == ICON_SIZE_256))
-            st = ICON_SIZE_48;
-
-        switch (st)
-        {
-            case ICON_SIZE_16:
-                break;
-            case ICON_SIZE_32:
-                requestedSize = 32;
-                shilIconType = SHIL_LARGE; //32x32, may be 48x48 if "Use large icon" option is set in Display Properties
-                break;
-            case ICON_SIZE_48:
-                requestedSize = 48;
-                shilIconType = SHIL_EXTRALARGE; //48x48, size can be customized by the user.
-                break;
-            case ICON_SIZE_128:
-                requestedSize = 128;
-                shilIconType = SHIL_JUMBO; //256x256 pixels -> scale down!
-                break;
-            case ICON_SIZE_256:
-                requestedSize = 256;
-                shilIconType = SHIL_JUMBO; //256x256 pixels; Vista and later only
-                break;
-        }
-    }
-
-    ComPtr<IImageList> imageList; //perf: 0,12 µs only to get the image list
-    ZEN_COM_CHECK(::SHGetImageList(shilIconType, //__in   int iImageList,
-                                   IID_PPV_ARGS(imageList.init())));
-    ZEN_COM_ASSERT(imageList);
-
-    int srcWidth  = 0;
-    int srcHeight = 0;
-    ZEN_COM_CHECK(imageList->GetIconSize(&srcWidth, &srcHeight));
-
-    int targetWidth  = srcWidth;
-    int targetHeight = srcHeight;
-    bool needDownScale = false; //scale down if required (e.g Vista Jumbo icons/user-customized icon sizes)
-
-    ZEN_COM_ASSERT(srcWidth > 0 && srcHeight > 0 && requestedSize > 0);
-
-    const int maxExtent = std::max(srcWidth, srcHeight);
-    if (requestedSize < maxExtent)
-    {
-        needDownScale = true;
-        targetWidth  = srcWidth  * requestedSize / maxExtent;
-        targetHeight = srcHeight * requestedSize / maxExtent;
-    }
-
-    HDC hScreenDC = ::GetDC(nullptr);
-    ZEN_COM_ASSERT(hScreenDC); //no documented extended error info
-    ZEN_ON_SCOPE_EXIT(::ReleaseDC(nullptr, hScreenDC));
-
-    auto createRGBDib = [&](unsigned char** rawBits) -> HBITMAP
-    {
-        BITMAPINFO bi = {};
-        bi.bmiHeader.biSize     = sizeof(bi);
-        bi.bmiHeader.biWidth    = targetWidth;
-        bi.bmiHeader.biHeight   = -targetHeight; //negative for top left origin
-        bi.bmiHeader.biPlanes   = 1;
-        bi.bmiHeader.biBitCount = 24; //we don't want an alpha channel
-        bi.bmiHeader.biCompression = BI_RGB;
-
-        return ::CreateDIBSection(hScreenDC,      //_In_   HDC hdc,
-                                  &bi,            //_In_   const BITMAPINFO *pbmi,
-                                  DIB_RGB_COLORS, //_In_   UINT iUsage,
-                                  reinterpret_cast<VOID**>(rawBits), //_Out_  VOID **ppvBits,
-                                  nullptr,        //_In_   HANDLE hSection,
-                                  0);             //_In_   DWORD dwOffset
-    };
-
-    unsigned char* bitsBlackBg = nullptr;
-    HBITMAP bmpBlackBg = createRGBDib(&bitsBlackBg);
-    ZEN_COM_ASSERT(bmpBlackBg); //no documented extended error info
-    ZEN_ON_SCOPE_EXIT(::DeleteObject(bmpBlackBg););
-    ZEN_COM_ASSERT(bitsBlackBg); //check after bmpBlackBg is owned by us
-
-    HDC memDC = ::CreateCompatibleDC(hScreenDC);
-    ZEN_COM_ASSERT(memDC); //no documented extended error info
-    ZEN_ON_SCOPE_EXIT(::DeleteDC(memDC));
-
-    HGDIOBJ hgdiOld = ::SelectObject(memDC, bmpBlackBg);
-    ZEN_COM_ASSERT(hgdiOld); //no documented extended error info
-    ZEN_ON_SCOPE_EXIT(::SelectObject(memDC, hgdiOld));
-
-    IMAGELISTDRAWPARAMS drawParams = {};
-    drawParams.cbSize = sizeof(drawParams);
-    drawParams.hdcDst = memDC;
-    drawParams.i = iconIndex;
-    drawParams.rgbBk = 0x000000; //black
-    drawParams.fStyle = ILD_NORMAL;
-    //other flags: http://msdn.microsoft.com/en-us/library/windows/desktop/bb775230(v=vs.85).aspx
-
-    if (needDownScale)
-    {
-        drawParams.fStyle |= ILD_SCALE;
-        drawParams.cx = targetWidth;
-        drawParams.cy = targetHeight;
-    }
-
-    //IDO_SHGIOI_LINK does not draw properly in some cases:
-    //Win7: draws link overlay *twice* if SHIL_JUMBO is requested, but icon does not have this size
-    //XP: drawing IDO_SHGIOI_LINK generally draws corrupted icons and links
-    //if (addShortcutOverlay)
-    //{
-    //    int linkOverlay = ::SHGetIconOverlayIndex(nullptr, IDO_SHGIOI_LINK); //-1 on error
-    //    if (linkOverlay != -1)
-    //    {
-    //        //int imgIndex = 0;
-    //        //if (SUCCEEDED(imageList->GetOverlayImage(linkOverlay, &imgIndex)))
-    //        //{
-    //        //    drawParams.i = imgIndex;
-    //        //    ZEN_COM_CHECK(imageList->Draw(&drawParams));
-    //        //}
-
-    //        drawParams.fStyle |= INDEXTOOVERLAYMASK(linkOverlay);
-    //    }
-    //}
-
-    ZEN_COM_CHECK(imageList->Draw(&drawParams));
-
-    //-----------------------------------------------
-    //we draw the icon twice on different backgrounds to extract the alpha channel:
-    //- IImageList::GetIcon doesn't properly render SHIL_JUMBO for icons that don't have jumbo sizes, but IImageList::Draw does!
-    //- minor: each HICON consumes 3 GDI handles
-    //- IImageList::Draw does not reliably support alpha channel on device context (Windows XP)
-    //- wxBitmap created from HBITMAP is very unreliable; often drawn incorrectly by wxDC::DrawBitmap => support wxImage instead
-
-    unsigned char* bitsWhiteBg = nullptr;
-    HBITMAP bmpWhiteBg = createRGBDib(&bitsWhiteBg);
-    ZEN_COM_ASSERT(bmpWhiteBg); //no documented extended error info
-    ZEN_ON_SCOPE_EXIT(::DeleteObject(bmpWhiteBg));
-    ZEN_COM_ASSERT(bitsWhiteBg); //check after bmpWhiteBg is owned by us
-
-    HGDIOBJ hgdiOld2 = ::SelectObject(memDC, bmpWhiteBg);
-    ZEN_COM_ASSERT(hgdiOld2); //no documented extended error info
-    ZEN_ON_SCOPE_EXIT(::SelectObject(memDC, hgdiOld2));
-
-    drawParams.rgbBk = 0xFFFFFF; //white
-
-    ZEN_COM_CHECK(imageList->Draw(&drawParams));
-
-    //#####################################################################################
-
-    //"Access to the bitmap must be synchronized. [...]. This applies to any use of the pointer to the bitmap bit values."
-    /*bool rv = */
-    ::GdiFlush();
-
-    ImageData* imgOut = allocImageData(targetWidth, targetHeight); //throw SysError
-    ScopeGuard guardImgData = zen::makeGuard([&] { releaseImageData_impl(imgOut); });
-
-    unsigned char* rgbPtr   = imgOut->rgb;
-    unsigned char* alphaPtr = imgOut->alpha;
-
-    for (int i = 0; i < targetWidth * targetHeight; ++i)
-    {
-        unsigned char b_black = *bitsBlackBg++;
-        unsigned char g_black = *bitsBlackBg++;
-        unsigned char r_black = *bitsBlackBg++;
-
-        unsigned char b_white = *bitsWhiteBg++;
-        unsigned char g_white = *bitsWhiteBg++;
-        unsigned char r_white = *bitsWhiteBg++;
-
-        const int tmp = 255 + r_black - r_white + //mixed mode arithmetics!
-                        255 + g_black - g_white +
-                        255 + b_black - b_white;
-        unsigned char alpha = static_cast<unsigned char>(numeric::confineCpy(tmp / 3, 0, 255));
-
-        auto calcColor = [&](unsigned char c_black, unsigned char c_white)
-        {
-            return static_cast<unsigned char>(tmp == 0 ? 0 : numeric::confineCpy
-                                              (255 * (3 * (-255 + c_white + c_black) + tmp) / (2 * tmp), //mixed mode arithmetics!
-                                               0, 255));
-        };
-
-        *rgbPtr++ = calcColor(r_black, r_white);
-        *rgbPtr++ = calcColor(g_black, g_white);
-        *rgbPtr++ = calcColor(b_black, b_white);
-        *alphaPtr++ = alpha;
-    }
-
-    guardImgData.dismiss();
-    return imgOut;
-}
-}
-
-
-const thumb::ImageData* thumb::getThumbnail(const wchar_t* filename, int requestedSize) //return 0 on failure, caller takes ownership!
-{
-    try
-    {
-        return getThumbnail_impl(filename, requestedSize); //throw SysError
-    }
-    catch (const SysError&)
-    {
-        return nullptr;
-    }
-}
-
-
-const thumb::ImageData* thumb::getIconByIndex(int iconIndex, thumb::IconSizeType st) //return 0 on failure, caller takes ownership!
-{
-    try
-    {
-        return getIconByIndex_impl(iconIndex, st); //throw SysError
-    }
-    catch (const SysError&)
-    {
-        return nullptr;
-    }
-}
-
-
-void thumb::releaseImageData(const thumb::ImageData* id)
-{
-    releaseImageData_impl(id);
-}