352 lines
13 KiB
C
352 lines
13 KiB
C
/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% CCCC L IIIII PPPP BBBB OOO AAA RRRR DDDD %
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% C L I P P B B O O A A R R D D %
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% C L I PPP BBBB O O AAAAA RRRR D D %
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% C L I P B B O O A A R R D D %
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% CCCC LLLLL IIIII P BBBB OOO A A R R DDDD %
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% %
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% %
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% Read/Write Windows Clipboard. %
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% %
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% Software Design %
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% Leonard Rosenthol %
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% May 2002 %
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% %
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% %
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% Copyright 1999-2013 ImageMagick Studio LLC, a non-profit organization %
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% dedicated to making software imaging solutions freely available. %
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% %
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% You may not use this file except in compliance with the License. You may %
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% obtain a copy of the License at %
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% %
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% http://www.imagemagick.org/script/license.php %
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% %
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% Unless required by applicable law or agreed to in writing, software %
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% distributed under the License is distributed on an "AS IS" BASIS, %
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% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. %
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% See the License for the specific language governing permissions and %
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% limitations under the License. %
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% %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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%
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*/
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/*
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Include declarations.
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*/
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#include "magick/studio.h"
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#if defined(MAGICKCORE_WINGDI32_DELEGATE)
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# if defined(__CYGWIN__)
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# include <windows.h>
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# else
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/* All MinGW needs ... */
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# include <wingdi.h>
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# endif
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#endif
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#include "magick/blob.h"
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#include "magick/blob-private.h"
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#include "magick/cache.h"
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#include "magick/exception.h"
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#include "magick/exception-private.h"
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#include "magick/image.h"
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#include "magick/image-private.h"
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#include "magick/list.h"
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#include "magick/magick.h"
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#include "magick/memory_.h"
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#include "magick/nt-feature.h"
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#include "magick/pixel-accessor.h"
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#include "magick/quantum-private.h"
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#include "magick/static.h"
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#include "magick/string_.h"
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#include "magick/module.h"
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/*
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Forward declarations.
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*/
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#if defined(MAGICKCORE_WINGDI32_DELEGATE)
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static MagickBooleanType
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WriteCLIPBOARDImage(const ImageInfo *,Image *);
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#endif
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/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% R e a d C L I P B O A R D I m a g e %
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% %
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% %
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% %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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% ReadCLIPBOARDImage() reads an image from the system clipboard and returns
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% it. It allocates the memory necessary for the new Image structure and
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% returns a pointer to the new image.
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%
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% The format of the ReadCLIPBOARDImage method is:
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%
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% Image *ReadCLIPBOARDImage(const ImageInfo *image_info,
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% ExceptionInfo exception)
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%
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% A description of each parameter follows:
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%
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% o image_info: the image info.
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%
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% o exception: return any errors or warnings in this structure.
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%
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*/
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#if defined(MAGICKCORE_WINGDI32_DELEGATE)
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static Image *ReadCLIPBOARDImage(const ImageInfo *image_info,
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ExceptionInfo *exception)
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{
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Image
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*image;
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register ssize_t
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x;
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register PixelPacket
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*q;
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ssize_t
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y;
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assert(image_info != (const ImageInfo *) NULL);
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assert(image_info->signature == MagickSignature);
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if (image_info->debug != MagickFalse)
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(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
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image_info->filename);
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assert(exception != (ExceptionInfo *) NULL);
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assert(exception->signature == MagickSignature);
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image=AcquireImage(image_info);
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{
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HBITMAP
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bitmapH;
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HPALETTE
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hPal;
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OpenClipboard(NULL);
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bitmapH=(HBITMAP) GetClipboardData(CF_BITMAP);
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hPal=(HPALETTE) GetClipboardData(CF_PALETTE);
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CloseClipboard();
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if ( bitmapH == NULL )
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ThrowReaderException(CoderError,"NoBitmapOnClipboard");
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{
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BITMAPINFO
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DIBinfo;
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BITMAP
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bitmap;
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HBITMAP
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hBitmap,
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hOldBitmap;
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HDC
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hDC,
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hMemDC;
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RGBQUAD
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*pBits,
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*ppBits;
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/* create an offscreen DC for the source */
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hMemDC=CreateCompatibleDC(NULL);
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hOldBitmap=(HBITMAP) SelectObject(hMemDC,bitmapH);
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GetObject(bitmapH,sizeof(BITMAP),(LPSTR) &bitmap);
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if ((image->columns == 0) || (image->rows == 0))
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{
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image->rows=bitmap.bmHeight;
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image->columns=bitmap.bmWidth;
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}
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/*
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Initialize the bitmap header info.
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*/
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(void) ResetMagickMemory(&DIBinfo,0,sizeof(BITMAPINFO));
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DIBinfo.bmiHeader.biSize=sizeof(BITMAPINFOHEADER);
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DIBinfo.bmiHeader.biWidth=(LONG) image->columns;
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DIBinfo.bmiHeader.biHeight=(-1)*(LONG) image->rows;
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DIBinfo.bmiHeader.biPlanes=1;
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DIBinfo.bmiHeader.biBitCount=32;
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DIBinfo.bmiHeader.biCompression=BI_RGB;
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hDC=GetDC(NULL);
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if (hDC == 0)
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ThrowReaderException(CoderError,"UnableToCreateADC");
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hBitmap=CreateDIBSection(hDC,&DIBinfo,DIB_RGB_COLORS,(void **) &ppBits,
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NULL,0);
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ReleaseDC(NULL,hDC);
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if (hBitmap == 0)
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ThrowReaderException(CoderError,"UnableToCreateBitmap");
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/* create an offscreen DC */
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hDC=CreateCompatibleDC(NULL);
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if (hDC == 0)
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{
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DeleteObject(hBitmap);
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ThrowReaderException(CoderError,"UnableToCreateADC");
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}
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hOldBitmap=(HBITMAP) SelectObject(hDC,hBitmap);
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if (hOldBitmap == 0)
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{
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DeleteDC(hDC);
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DeleteObject(hBitmap);
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ThrowReaderException(CoderError,"UnableToCreateBitmap");
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}
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if (hPal != NULL)
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{
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/* Kenichi Masuko says this needed */
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SelectPalette(hDC, hPal, FALSE);
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RealizePalette(hDC);
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}
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/* bitblt from the memory to the DIB-based one */
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BitBlt(hDC,0,0,(int) image->columns,(int) image->rows,hMemDC,0,0,SRCCOPY);
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/* finally copy the pixels! */
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pBits=ppBits;
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for (y=0; y < (ssize_t) image->rows; y++)
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{
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q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
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if (q == (PixelPacket *) NULL)
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break;
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for (x=0; x < (ssize_t) image->columns; x++)
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{
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SetPixelRed(q,ScaleCharToQuantum(pBits->rgbRed));
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SetPixelGreen(q,ScaleCharToQuantum(pBits->rgbGreen));
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SetPixelBlue(q,ScaleCharToQuantum(pBits->rgbBlue));
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SetPixelOpacity(q,OpaqueOpacity);
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pBits++;
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q++;
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}
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if (SyncAuthenticPixels(image,exception) == MagickFalse)
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break;
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}
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DeleteDC(hDC);
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DeleteObject(hBitmap);
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}
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}
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(void) CloseBlob(image);
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return(GetFirstImageInList(image));
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}
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#endif /* MAGICKCORE_WINGDI32_DELEGATE */
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/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% R e g i s t e r C L I P B O A R D I m a g e %
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% %
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% %
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% %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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% RegisterCLIPBOARDImage() adds attributes for the clipboard "image format" to
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% the list of supported formats. The attributes include the image format
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% tag, a method to read and/or write the format, whether the format
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% supports the saving of more than one frame to the same file or blob,
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% whether the format supports native in-memory I/O, and a brief
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% description of the format.
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%
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% The format of the RegisterCLIPBOARDImage method is:
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%
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% size_t RegisterCLIPBOARDImage(void)
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%
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*/
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ModuleExport size_t RegisterCLIPBOARDImage(void)
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{
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MagickInfo
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*entry;
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entry=SetMagickInfo("CLIPBOARD");
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#if defined(MAGICKCORE_WINGDI32_DELEGATE)
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entry->decoder=(DecodeImageHandler *) ReadCLIPBOARDImage;
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entry->encoder=(EncodeImageHandler *) WriteCLIPBOARDImage;
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#endif
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entry->adjoin=MagickFalse;
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entry->format_type=ImplicitFormatType;
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entry->description=ConstantString("The system clipboard");
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entry->module=ConstantString("CLIPBOARD");
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(void) RegisterMagickInfo(entry);
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return(MagickImageCoderSignature);
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}
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/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% U n r e g i s t e r C L I P B O A R D I m a g e %
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% %
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% %
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% %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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% UnregisterCLIPBOARDImage() removes format registrations made by the
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% RGB module from the list of supported formats.
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%
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% The format of the UnregisterCLIPBOARDImage method is:
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%
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% UnregisterCLIPBOARDImage(void)
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%
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*/
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ModuleExport void UnregisterCLIPBOARDImage(void)
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{
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(void) UnregisterMagickInfo("CLIPBOARD");
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}
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/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% W r i t e C L I P B O A R D I m a g e %
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% %
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% %
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% %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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% WriteCLIPBOARDImage() writes an image to the system clipboard.
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%
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% The format of the WriteCLIPBOARDImage method is:
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%
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% MagickBooleanType WriteCLIPBOARDImage(const ImageInfo *image_info,
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% Image *image)
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%
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% A description of each parameter follows.
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%
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% o image_info: the image info.
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%
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% o image: The image.
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%
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*/
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#if defined(MAGICKCORE_WINGDI32_DELEGATE)
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static MagickBooleanType WriteCLIPBOARDImage(const ImageInfo *image_info,
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Image *image)
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{
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/*
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Allocate memory for pixels.
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*/
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assert(image_info != (const ImageInfo *) NULL);
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assert(image_info->signature == MagickSignature);
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assert(image != (Image *) NULL);
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assert(image->signature == MagickSignature);
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if (image->debug != MagickFalse)
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(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
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{
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HBITMAP
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bitmapH;
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OpenClipboard(NULL);
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EmptyClipboard();
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bitmapH=(HBITMAP) ImageToHBITMAP(image);
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SetClipboardData(CF_BITMAP,bitmapH);
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CloseClipboard();
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}
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return(MagickTrue);
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}
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#endif /* MAGICKCORE_WINGDI32_DELEGATE */
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