212 lines
6.6 KiB
C++
212 lines
6.6 KiB
C++
/*******************************************************************************
|
|
*
|
|
* (C) COPYRIGHT MICROSOFT CORPORATION, 1998
|
|
*
|
|
* TITLE: GPHELPER.H
|
|
*
|
|
* VERSION: 1.0
|
|
*
|
|
* AUTHOR: ShaunIv
|
|
*
|
|
* DATE: 10/11/1999
|
|
*
|
|
* DESCRIPTION: Encapsulation of common GDI plus operationss
|
|
*
|
|
*******************************************************************************/
|
|
#ifndef __GPHELPER_H_INCLUDED
|
|
#define __GPHELPER_H_INCLUDED
|
|
|
|
#include <windows.h>
|
|
#include <simstr.h>
|
|
#include <gdiplus.h>
|
|
#include <simarray.h>
|
|
|
|
|
|
#include <gdiplusinit.h>
|
|
|
|
class CGdiPlusInit
|
|
{
|
|
ULONG_PTR m_pGdiplusToken;
|
|
public:
|
|
CGdiPlusInit();
|
|
~CGdiPlusInit();
|
|
};
|
|
|
|
class CGdiPlusHelper
|
|
{
|
|
private:
|
|
CGdiPlusInit m_Init;
|
|
Gdiplus::ImageCodecInfo *m_pImageEncoderInfo;
|
|
UINT m_nImageEncoderCount;
|
|
|
|
Gdiplus::ImageCodecInfo *m_pImageDecoderInfo;
|
|
UINT m_nImageDecoderCount;
|
|
|
|
private:
|
|
CGdiPlusHelper( const CGdiPlusHelper & );
|
|
CGdiPlusHelper &operator=( const CGdiPlusHelper & );
|
|
|
|
public:
|
|
CGdiPlusHelper(void);
|
|
~CGdiPlusHelper(void);
|
|
|
|
protected:
|
|
HRESULT Initialize(void);
|
|
static HRESULT ConstructCodecExtensionSearchStrings( CSimpleString &strExtensions, Gdiplus::ImageCodecInfo *pImageCodecInfo, UINT nImageCodecCount );
|
|
void Destroy(void);
|
|
|
|
public:
|
|
bool IsValid(void) const;
|
|
|
|
HRESULT ConstructDecoderExtensionSearchStrings( CSimpleString &strExtensions );
|
|
HRESULT ConstructEncoderExtensionSearchStrings( CSimpleString &strExtensions );
|
|
HRESULT GetClsidOfEncoder( const GUID &guidFormatId, CLSID &clsidFormat ) const;
|
|
HRESULT GetClsidOfDecoder( const GUID &guidFormatId, CLSID &clsidFormat ) const;
|
|
HRESULT Convert( LPCWSTR pszInputFilename, LPCWSTR pszOutputFilename, const CLSID &guidOutputFormat ) const;
|
|
HRESULT Rotate( LPCWSTR pszInputFilename, LPCWSTR pszOutputFilename, int nRotationAngle, const CLSID &guidOutputFormat ) const;
|
|
HRESULT Rotate( HBITMAP hSourceBitmap, HBITMAP &hTargetBitmap, int nRotation ) const;
|
|
HRESULT LoadAndScale( HBITMAP &hTargetBitmap, LPCTSTR pszFilename, UINT nMaxWidth=0, UINT nMaxHeight=0, bool bStretchSmallImages=false );
|
|
HRESULT LoadAndScale( HBITMAP &hTargetBitmap, IStream *pStream, UINT nMaxWidth=0, UINT nMaxHeight=0, bool bStretchSmallImages=false );
|
|
HRESULT SaveMultipleImagesAsMultiPage( const CSimpleDynamicArray<CSimpleStringWide> &Filenames, const CSimpleStringWide &strFilename, const CLSID &guidOutputFormat );
|
|
HRESULT SetBrightnessAndContrast( HBITMAP hSourceBitmap, HBITMAP &hTargetBitmap, BYTE nBrightness, BYTE nContrast );
|
|
HRESULT SetThreshold( HBITMAP hSourceBitmap, HBITMAP &hTargetBitmap, BYTE nThreshold );
|
|
|
|
static Gdiplus::EncoderParameters *AppendEncoderParameter( Gdiplus::EncoderParameters *pEncoderParameters, const GUID &guidProp, ULONG nType, PVOID pVoid );
|
|
|
|
static inline GDISTATUS_TO_HRESULT(Gdiplus::Status status)
|
|
{
|
|
//
|
|
// Default to turning GDI+ errors into generic failures
|
|
//
|
|
HRESULT hr = E_FAIL;
|
|
|
|
switch( status )
|
|
{
|
|
case Gdiplus::Ok:
|
|
hr = S_OK;
|
|
break;
|
|
|
|
case Gdiplus::InvalidParameter:
|
|
hr = E_INVALIDARG;
|
|
break;
|
|
|
|
case Gdiplus::OutOfMemory:
|
|
hr = E_OUTOFMEMORY;
|
|
break;
|
|
|
|
case Gdiplus::InsufficientBuffer:
|
|
hr = HRESULT_FROM_WIN32(ERROR_INSUFFICIENT_BUFFER);
|
|
break;
|
|
|
|
case Gdiplus::Aborted:
|
|
hr = E_ABORT;
|
|
break;
|
|
|
|
case Gdiplus::ObjectBusy:
|
|
hr = E_PENDING;
|
|
break;
|
|
|
|
case Gdiplus::FileNotFound:
|
|
hr = HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND);
|
|
break;
|
|
|
|
case Gdiplus::AccessDenied:
|
|
hr = E_ACCESSDENIED;
|
|
break;
|
|
|
|
case Gdiplus::UnknownImageFormat:
|
|
hr = HRESULT_FROM_WIN32(ERROR_INVALID_PIXEL_FORMAT);
|
|
break;
|
|
|
|
case Gdiplus::NotImplemented:
|
|
hr = E_NOTIMPL;
|
|
break;
|
|
|
|
case Gdiplus::Win32Error:
|
|
hr = HRESULT_FROM_WIN32(GetLastError());
|
|
break;
|
|
|
|
case Gdiplus::ValueOverflow:
|
|
case Gdiplus::FontFamilyNotFound:
|
|
case Gdiplus::FontStyleNotFound:
|
|
case Gdiplus::NotTrueTypeFont:
|
|
case Gdiplus::UnsupportedGdiplusVersion:
|
|
case Gdiplus::GdiplusNotInitialized:
|
|
case Gdiplus::WrongState:
|
|
break;
|
|
}
|
|
return hr;
|
|
}
|
|
};
|
|
|
|
|
|
class CImageFileFormatVerifier
|
|
{
|
|
private:
|
|
//
|
|
// Internal class used to store the file signatures
|
|
//
|
|
class CImageFileFormatVerifierItem
|
|
{
|
|
private:
|
|
PBYTE m_pSignature;
|
|
PBYTE m_pMask;
|
|
int m_nLength;
|
|
GUID m_guidFormat;
|
|
CLSID m_clsidDecoder;
|
|
|
|
public:
|
|
//
|
|
// Constructors, assignment operator and destructor
|
|
//
|
|
CImageFileFormatVerifierItem(void);
|
|
CImageFileFormatVerifierItem( const PBYTE pSignature, const PBYTE pMask, int nLength, const GUID &guidFormat, const CLSID &guidDecoder );
|
|
CImageFileFormatVerifierItem( const CImageFileFormatVerifierItem &other );
|
|
CImageFileFormatVerifierItem &operator=( const CImageFileFormatVerifierItem &other );
|
|
CImageFileFormatVerifierItem &Assign( const PBYTE pSignature, const PBYTE pMask, int nLength, const GUID &Format, const CLSID &guidDecoder );
|
|
~CImageFileFormatVerifierItem(void);
|
|
|
|
protected:
|
|
void Destroy(void);
|
|
|
|
public:
|
|
//
|
|
// Accessor functions
|
|
//
|
|
PBYTE Signature(void) const;
|
|
PBYTE Mask(void) const;
|
|
int Length(void) const;
|
|
GUID Format(void) const;
|
|
CLSID Decoder(void) const;
|
|
|
|
//
|
|
// Does this stream of bytes match this format?
|
|
//
|
|
bool Match( PBYTE pBytes, int nLen ) const;
|
|
};
|
|
|
|
|
|
private:
|
|
CSimpleDynamicArray<CImageFileFormatVerifierItem> m_FileFormatVerifierList;
|
|
int m_nMaxSignatureLength;
|
|
PBYTE m_pSignatureBuffer;
|
|
|
|
private:
|
|
CImageFileFormatVerifier( const CImageFileFormatVerifier & );
|
|
CImageFileFormatVerifier &operator=( const CImageFileFormatVerifier & );
|
|
|
|
public:
|
|
CImageFileFormatVerifier(void);
|
|
~CImageFileFormatVerifier(void);
|
|
void Destroy(void);
|
|
bool IsValid(void) const;
|
|
bool IsImageFile( LPCTSTR pszFilename );
|
|
bool IsSupportedImageFromStream( IStream * pStream, GUID * pGuidOfFormat = NULL );
|
|
GUID GetImageType( IStream * pStream );
|
|
|
|
};
|
|
|
|
|
|
#endif
|
|
|