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harbour-core/harbour/contrib/hbgd/gdimage.prg
Viktor Szakats 81c9b0506c 2010-06-04 15:21 UTC+0200 Viktor Szakats (harbour.01 syenar.hu)
* contrib/*
    * Deleted 'www.' from harbour-project.org website name.
      (www.harbour-project.org -> harbour-project.org)
2010-06-04 13:32:23 +00:00

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/*
* $Id$
*/
/*
* Harbour Project source code:
* GD graphic library class
*
* Copyright 2004-2005 Francesco Saverio Giudice <info@fsgiudice.com>
* www - http://www.xharbour.org http://harbour-project.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is 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.
*
* You should have received a copy of the GNU General Public License
* along with this software; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307 USA (or visit the web site http://www.gnu.org/).
*
* As a special exception, the Harbour Project gives permission for
* additional uses of the text contained in its release of Harbour.
*
* The exception is that, if you link the Harbour libraries with other
* files to produce an executable, this does not by itself cause the
* resulting executable to be covered by the GNU General Public License.
* Your use of that executable is in no way restricted on account of
* linking the Harbour library code into it.
*
* This exception does not however invalidate any other reasons why
* the executable file might be covered by the GNU General Public License.
*
* This exception applies only to the code released by the Harbour
* Project under the name Harbour. If you copy code from other
* Harbour Project or Free Software Foundation releases into a copy of
* Harbour, as the General Public License permits, the exception does
* not apply to the code that you add in this way. To avoid misleading
* anyone as to the status of such modified files, you must delete
* this exception notice from them.
*
* If you write modifications of your own for Harbour, it is your choice
* whether to permit this exception to apply to your modifications.
* If you do not wish that, delete this exception notice.
*
*/
#include "common.ch"
#include "hbclass.ch"
#include "gd.ch"
#define DEFAULT( x, y ) IIF( x == NIL, x := y, )
CLASS GDImage
PROTECTED:
DATA pImage
DATA pBrush
DATA pTile
DATA pFont
DATA pColor
DATA cFontName INIT "Arial"
DATA nFontPitch INIT 20
DATA nFontAngle INIT 0
DATA aPoints INIT {}
DATA aStyles INIT {}
DATA lDestroy INIT .T.
EXPORTED:
DATA hFile
DATA cType
DATA cMime
METHOD New( sx, sy ) CONSTRUCTOR
/* IMAGE CREATION, DESTRUCTION, LOADING AND SAVING */
// Create in memory
METHOD Create( sx, sy ) INLINE ::pImage := gdImageCreate( sx, sy ), Self
METHOD CreateTrueColor( sx, sy ) INLINE ::pImage := gdImageCreateTrueColor( sx, sy ), Self
// Load From File
METHOD LoadFromPng( cFile ) INLINE ::pImage := gdImageCreateFromPng( cFile ) , IIF( ::pImage != NIL, Self, NIL )
METHOD LoadFromJpeg( cFile ) INLINE ::pImage := gdImageCreateFromJpeg( cFile ) , IIF( ::pImage != NIL, Self, NIL )
METHOD LoadFromWBmp( cFile ) INLINE ::pImage := gdImageCreateFromWBMP( cFile ) , IIF( ::pImage != NIL, Self, NIL )
METHOD LoadFromGd( cFile ) INLINE ::pImage := gdImageCreateFromGD( cFile ) , IIF( ::pImage != NIL, Self, NIL )
METHOD LoadFromGif( cFile ) INLINE ::pImage := gdImageCreateFromGif( cFile ) , IIF( ::pImage != NIL, Self, NIL )
// Load From a specific File handle
METHOD InputPng( nHandle, nSize ) INLINE ::pImage := gdImageCreateFromPng( nHandle, nSize ) , IIF( ::pImage != NIL, Self, NIL )
METHOD InputJpeg( nHandle, nSize ) INLINE ::pImage := gdImageCreateFromJpeg( nHandle, nSize ), IIF( ::pImage != NIL, Self, NIL )
METHOD InputWBmp( nHandle, nSize ) INLINE ::pImage := gdImageCreateFromWBMP( nHandle, nSize ), IIF( ::pImage != NIL, Self, NIL )
METHOD InputGd( nHandle, nSize ) INLINE ::pImage := gdImageCreateFromGD( nHandle, nSize ) , IIF( ::pImage != NIL, Self, NIL )
METHOD InputGif( nHandle, nSize ) INLINE ::pImage := gdImageCreateFromGif( nHandle, nSize ) , IIF( ::pImage != NIL, Self, NIL )
// Create from an image pointer in memory
METHOD CreateFromPng( pImage, nSize ) INLINE ::pImage := gdImageCreateFromPng( pImage, nSize ) , IIF( ::pImage != NIL, Self, NIL )
METHOD CreateFromJpeg( pImage, nSize ) INLINE ::pImage := gdImageCreateFromJpeg( pImage, nSize ) , IIF( ::pImage != NIL, Self, NIL )
METHOD CreateFromWBmp( pImage, nSize ) INLINE ::pImage := gdImageCreateFromWBMP( pImage, nSize ) , IIF( ::pImage != NIL, Self, NIL )
METHOD CreateFromGd( pImage, nSize ) INLINE ::pImage := gdImageCreateFromGD( pImage, nSize ) , IIF( ::pImage != NIL, Self, NIL )
METHOD CreateFromGif( pImage, nSize ) INLINE ::pImage := gdImageCreateFromGif( pImage, nSize ) , IIF( ::pImage != NIL, Self, NIL )
METHOD LoadFromFile( cFile )
// Save To File Name
METHOD SavePng( cFile, nLevel ) INLINE gdImagePng( ::pImage, cFile, nLevel )
METHOD SaveJpeg( cFile, nLevel ) INLINE gdImageJpeg( ::pImage, cFile, nLevel )
METHOD SaveWBmp( cFile, nFG ) INLINE gdImageWBmp( ::pImage, cFile, nFG )
METHOD SaveGd( cFile ) INLINE gdImageGd( ::pImage, cFile )
METHOD SaveGif( cFile ) INLINE gdImageGif( ::pImage, cFile )
METHOD SaveToFile( cFile ) INLINE gdImageToFile( Self, cFile )
// Output To a specified File handle
METHOD OutputPng( nHandle, nLevel ) INLINE IIF( nHandle == NIL, nHandle := 1, ), gdImagePng( ::pImage, nHandle, nLevel )
METHOD OutputJpeg( nHandle, nLevel ) INLINE IIF( nHandle == NIL, nHandle := 1, ), gdImageJpeg( ::pImage, nHandle, nLevel )
METHOD OutputWBmp( nHandle, nFG ) INLINE IIF( nHandle == NIL, nHandle := 1, ), gdImageWBmp( ::pImage, nHandle, nFG )
METHOD OutputGd( nHandle ) INLINE IIF( nHandle == NIL, nHandle := 1, ), gdImageGd( ::pImage, nHandle )
METHOD OutputGif( nHandle ) INLINE IIF( nHandle == NIL, nHandle := 1, ), gdImageGif( ::pImage, nHandle )
METHOD Output( nHandle ) INLINE gdImageToHandle( ::pImage, nHandle )
// Output To a string
METHOD ToStringPng( nLevel ) INLINE gdImagePng( ::pImage, NIL, nLevel )
METHOD ToStringJpeg( nLevel ) INLINE gdImageJpeg( ::pImage, NIL, nLevel )
METHOD ToStringWBmp( nFG ) INLINE gdImageWBmp( ::pImage, NIL, nFG )
METHOD ToStringGd() INLINE gdImageGd( ::pImage, NIL )
METHOD ToStringGif() INLINE gdImageGif( ::pImage, NIL )
METHOD ToString() INLINE gdImageToString( Self )
// Destructor
METHOD Destroy() INLINE gdImageDestroy( ::pImage )
DESTRUCTOR Destruct()
/* DRAWING FUNCTIONS */
METHOD SetPixel( x, y, color ) INLINE DEFAULT( color, ::pColor ), gdImageSetPixel( ::pImage, x, y, color )
METHOD Line( x1, y1, x2, y2, color ) INLINE DEFAULT( color, ::pColor ), gdImageLine( ::pImage, x1, y1, x2, y2, color )
METHOD DashedLine( x1, y1, x2, y2, color ) INLINE DEFAULT( color, ::pColor ), gdImageDashedLine( ::pImage, x1, y1, x2, y2, color )
// Functions usefull for polygons
METHOD Polygon( aPoints, lFilled, color )
#if ( GD_VERS >= 2033 )
METHOD OpenPolygon( aPoints, color )
#endif
METHOD AddPoint( x, y ) INLINE aAdd( ::aPoints, { x, y } )
METHOD ResetPoints() INLINE ::aPoints := {}
METHOD Points() INLINE Len( ::aPoints )
METHOD Rectangle( x1, y1, x2, y2, lFilled, color )
METHOD Arc( x, y, nWidth, nHeight, nStartDegree, nEndDegree, lFilled, color, nStyle )
METHOD Ellipse( x, y, nWidth, nHeight, lFilled, color )
METHOD Circle( x, y, nRadius, lFilled, nColor ) ;
INLINE ::Ellipse( x, y, nRadius, nRadius, lFilled, nColor )
METHOD Fill( x, y, color ) INLINE DEFAULT( color, ::pColor ), gdImageFill( ::pImage, x, y, color )
METHOD FillToBorder( x, y, border, color ) ;
INLINE DEFAULT( color, ::pColor ), gdImageFillToBorder( ::pImage, x, y, border, color )
METHOD SetAntiAliased( color ) INLINE DEFAULT( color, ::pColor ), gdImageSetAntiAliased( ::pImage, color )
METHOD SetAntiAliasedDontBlend( lDontBlend, color ) ;
INLINE DEFAULT( color, ::pColor ), gdImageSetAntiAliasedDontBlend( ::pImage, color, lDontBlend )
METHOD SetBrush( pBrush ) INLINE gdImageSetBrush( ::pImage, pBrush:pImage ), ::pBrush := pBrush
METHOD SetTile( pTile ) INLINE gdImageSetTile( ::pImage, pTile:pImage ), ::pTile := pTile
// Functions usefull for style
METHOD SetStyle( aStyle ) INLINE DEFAULT( aStyle, ::aStyles ), gdImageSetStyle( ::pImage, aStyle )
METHOD AddStyle( pColor ) INLINE aAdd( ::aStyles, pColor )
METHOD ResetStyles() INLINE ::aStyles := {}
METHOD StyleLenght() INLINE Len( ::aStyles )
METHOD SetThickness( nThickness ) INLINE gdImageSetThickness( ::pImage, nThickness )
METHOD SetAlphaBlending( lAlphaBlending ) INLINE gdImageAlphaBlending( ::pImage, lAlphaBlending )
METHOD SetSaveAlpha( lSaveAlpha ) INLINE gdImageSaveAlpha( ::pImage, lSaveAlpha )
METHOD SetClippingArea( x1, y1, x2, y2 ) INLINE gdImageSetClip( ::pImage, x1, y1, x2, y2 )
/* QUERY FUNCTIONS */
METHOD ColorsTotal() INLINE gdImageColorsTotal( ::pImage )
METHOD Alpha( color ) INLINE DEFAULT( color, ::pColor ), gdImageAlpha( ::pImage, color )
METHOD Red( color ) INLINE DEFAULT( color, ::pColor ), gdImageRed( ::pImage, color )
METHOD Green( color ) INLINE DEFAULT( color, ::pColor ), gdImageGreen( ::pImage, color )
METHOD Blue( color ) INLINE DEFAULT( color, ::pColor ), gdImageBlue( ::pImage, color )
METHOD Width() INLINE gdImageSx( ::pImage )
METHOD Height() INLINE gdImageSy( ::pImage )
METHOD CenterWidth() INLINE ::Width() / 2
METHOD CenterHeight() INLINE ::Height() / 2
METHOD GetPixel( x, y ) INLINE gdImageGetPixel( ::pImage, x, y )
METHOD GetColor() INLINE ::pColor
METHOD GetImagePtr() INLINE ::pImage
METHOD GetClippingArea() INLINE gdImageGetClip( ::pImage )
METHOD IsBoundsSafe( x, y ) INLINE gdImageBoundsSafe( ::pImage, x, y )
METHOD IsInterlaced() INLINE gdImageGetInterlaced( ::pImage )
METHOD GetTransparent() INLINE gdImageGetTransparent( ::pImage )
METHOD IsTransparent() INLINE ::GetTransparent() > 0
METHOD IsTrueColor() INLINE gdImageTrueColor( ::pImage )
METHOD ConvertFromTrueColorToPalette( lDither, nColorsWanted ) ;
INLINE gdImageTrueColorToPalette ( ::pImage, lDither, nColorsWanted )
METHOD CreatePaletteFromTrueColor( lDither, nColorsWanted ) ;
INLINE gdImageCreatePaletteFromTrueColor( ::pImage, lDither, nColorsWanted )
METHOD GetPalette( x, y ) INLINE gdImagePalettePixel( ::pImage, x, y )
METHOD GetTrueColor( x, y ) INLINE gdImageTrueColorPixel( ::pImage, x, y )
METHOD GetThickness() INLINE gdImageGetThickness( ::pImage )
/* FONTS AND TEXT-HANDLING FUNCTIONS */
METHOD SetFontSmall() INLINE ::pFont := gdFontGetSmall()
METHOD SetFontLarge() INLINE ::pFont := gdFontGetLarge()
METHOD SetFontMediumBold() INLINE ::pFont := gdFontGetMediumBold()
METHOD SetFontGiant() INLINE ::pFont := gdFontGetGiant()
METHOD SetFontTiny() INLINE ::pFont := gdFontGetTiny()
METHOD Say( x, y, cString, color, nAlign )
METHOD SayVertical( x, y, cString, color ) INLINE DEFAULT( color, ::pColor ), gdImageStringUp( ::pImage, ::pFont, x, y, cString, color )
METHOD SetFontName( cFontName ) INLINE ::cFontName := cFontName
METHOD SetFontPitch( nPitch ) INLINE ::nFontPitch := nPitch
METHOD SetFontAngle( nAngle ) INLINE ::nFontAngle := nAngle
METHOD SayFreeType( x, y, cString, cFontName, nPitch, nAngle, color, nAlign, ;
nLineSpacing, nCharMap, nResolution )
METHOD SayFreeTypeCircle( x, y, cStringTop, cStringBottom, color, nRadius, nTextRadius, nFillPortion, cFontName, nPitch ) ;
INLINE DEFAULT( color, ::pColor ), gdImageStringFTCircle( ::pImage, x, y, nRadius, ;
nTextRadius, nFillPortion, cFontName, nPitch, cStringTop, cStringBottom, color )
METHOD GetFont() INLINE ::pFont
METHOD GetFontWidth( pFont ) INLINE DEFAULT( pFont, ::pFont ), gdFontGetWidth( pFont )
METHOD GetFontHeight( pFont ) INLINE DEFAULT( pFont, ::pFont ), gdFontGetHeight( pFont )
METHOD GetFTFontWidth( cFontName, nPitch ) INLINE DEFAULT( cFontName, ::cFontName ), ;
DEFAULT( nPitch, ::nFontPitch ) , ;
gdImageFTWidth( cFontName, nPitch )
METHOD GetFTFontHeight( cFontName, nPitch ) INLINE DEFAULT( cFontName, ::cFontName ), ;
DEFAULT( nPitch, ::nFontPitch ) , ;
gdImageFTHeight( cFontName, nPitch )
METHOD GetFTStringSize( cString, cFontName, nPitch ) INLINE DEFAULT( cFontName, ::cFontName ), ;
DEFAULT( nPitch, ::nFontPitch ) , ;
gdImageFTSize( cString, cFontName, nPitch )
/* COLOR HANDLING FUNCTIONS */
METHOD SetColor( r, g, b ) INLINE IIF( PCount() == 2, ::pColor := r, ::pColor := gdImageColorAllocate( ::pImage, r, g, b ) )
METHOD DelColor( pColor ) INLINE ::pColor := NIL, gdImageColorDeAllocate( ::pImage, pColor )
METHOD SetColorAlpha( r, g, b, a ) INLINE ::pColor := gdImageColorAllocateAlpha( ::pImage, r, g, b, a)
METHOD SetColorClosest( r, g, b ) INLINE ::pColor := gdImageColorClosest( ::pImage, r, g, b )
METHOD SetColorClosestAlpha( r, g, b, a ) INLINE ::pColor := gdImageColorClosestAlpha( ::pImage, r, g, b, a)
METHOD SetColorClosestHWB( r, g, b ) INLINE ::pColor := gdImageColorClosestHWB( ::pImage, r, g, b )
METHOD SetColorExact( r, g, b ) INLINE ::pColor := gdImageColorExact( ::pImage, r, g, b )
METHOD SetColorResolve( r, g, b ) INLINE ::pColor := gdImageColorResolve( ::pImage, r, g, b )
METHOD SetColorResolveAlpha( r, g, b, a ) INLINE ::pColor := gdImageColorResolveAlpha( ::pImage, r, g, b, a)
METHOD SetTransparent( pColor ) INLINE gdImageColorTransparent( ::pImage, pColor )
METHOD SetSharpen( nPerc ) INLINE gdImageSharpen( ::pImage, nPerc )
METHOD SetInterlace( lOnOff ) INLINE gdImageInterlace( ::pImage, lOnOff )
METHOD SetInterlaceOn() INLINE gdImageInterlace( ::pImage, .T. )
METHOD SetInterlaceOff() INLINE gdImageInterlace( ::pImage, .F. )
/* COPY AND RESIZING FUNCTIONS */
METHOD Copy( nSrcX, nSrcY, nWidth, nHeight, nDstX, nDstY, oDestImage )
METHOD CopyResized( nSrcX, nSrcY, nSrcWidth, nSrcHeight, nDstX, nDstY, nDstWidth, nDstHeight, oDestImage )
METHOD CopyResampled( nSrcX, nSrcY, nSrcWidth, nSrcHeight, nDstX, nDstY, nDstWidth, nDstHeight, oDestImage )
METHOD CopyRotated( nSrcX, nSrcY, nWidth, nHeight, nDstX, nDstY, nAngle, oDestImage )
METHOD CopyMerge( nSrcX, nSrcY, nWidth, nHeight, nDstX, nDstY, nPerc, oDestImage )
METHOD CopyMergeGray( nSrcX, nSrcY, nWidth, nHeight, nDstX, nDstY, nPerc, oDestImage )
/* New implemented */
METHOD Clone()
METHOD CopyZoomed( nPerc, nSrcX, nSrcY, nSrcWidth, nSrcHeight )
METHOD Crop( nX, nY, nWidth, nHeight )
METHOD Zoom( nPerc )
METHOD Resize( nWidth, nHeight )
METHOD Rotate( nAngle, lInside )
METHOD RotateInside( nAngle ) INLINE ::Rotate( nAngle, .T. )
METHOD PaletteCopy( oDestImage ) INLINE gdImagePaletteCopy( oDestImage:pImage, ::pImage )
METHOD SquareToCircle( nRadius ) INLINE gdImageSquareToCircle( ::pImage, nRadius )
METHOD Compare( oDestImage ) INLINE gdImageCompare( oDestImage:pImage, ::pImage )
METHOD Radians( nAngle ) INLINE PI() * nAngle / 180
METHOD Degres( nRadians ) INLINE nRadians * 180 / PI()
METHOD Version() INLINE gdVersion()
PROTECTED:
METHOD CloneDataFrom( oSrc )
ENDCLASS
METHOD New( sx, sy ) CLASS GDImage
::Create( sx, sy )
RETURN Self
METHOD PROCEDURE Destruct() CLASS GDImage
//__OutDebug( "Destroyed" )
IF ::lDestroy
::Destroy()
ENDIF
RETURN
METHOD Polygon( aPoints, lFilled, color ) CLASS GDImage
DEFAULT aPoints TO ::aPoints
DEFAULT lFilled TO .F.
DEFAULT color TO ::pColor
IF lFilled
gdImageFilledPolygon( ::pImage, aPoints, color )
ELSE
gdImagePolygon( ::pImage, aPoints, color )
ENDIF
RETURN Self
#if ( GD_VERS >= 2033 )
METHOD OpenPolygon( aPoints, color ) CLASS GDImage
DEFAULT aPoints TO ::aPoints
DEFAULT color TO ::pColor
gdImageOpenPolygon( ::pImage, aPoints, color )
RETURN Self
#endif
METHOD Rectangle( x1, y1, x2, y2, lFilled, color ) CLASS GDImage
DEFAULT lFilled TO .F.
DEFAULT color TO ::pColor
IF lFilled
gdImageFilledRectangle( ::pImage, x1, y1, x2, y2, color )
ELSE
gdImageRectangle( ::pImage, x1, y1, x2, y2, color )
ENDIF
RETURN Self
METHOD Arc( x, y, nWidth, nHeight, nStartDegree, nEndDegree, lFilled, color, nStyle ) CLASS GDImage
DEFAULT lFilled TO .F.
DEFAULT color TO ::pColor
DEFAULT nStyle TO gdArc
IF lFilled
gdImageFilledArc( ::pImage, x, y, nWidth, nHeight, nStartDegree, nEndDegree, color, nStyle )
ELSE
gdImageArc( ::pImage, x, y, nWidth, nHeight, nStartDegree, nEndDegree, color )
ENDIF
RETURN Self
METHOD Ellipse( x, y, nWidth, nHeight, lFilled, color ) CLASS GDImage
DEFAULT lFilled TO .F.
DEFAULT color TO ::pColor
IF lFilled
gdImageFilledEllipse( ::pImage, x, y, nWidth, nHeight, color )
ELSE
gdImageEllipse( ::pImage, x, y, nWidth, nHeight, color )
ENDIF
RETURN Self
METHOD LoadFromFile( cFile ) CLASS GDImage
LOCAL aLoad
aLoad := gdImageFromFile( cFile )
//Self := aLoad[1]:Clone()
::Destroy()
Self := ::CloneDataFrom( aLoad[1] )
//Self := __objClone( aLoad[1] )
aLoad[1]:lDestroy := .F.
aLoad[1] := NIL
::hFile := aLoad[2]
::cType := aLoad[3]
::cMime := aLoad[4]
RETURN Self
METHOD Copy( nSrcX, nSrcY, nWidth, nHeight, nDstX, nDstY, oDestImage ) CLASS GDImage
DEFAULT nSrcX TO 0
DEFAULT nSrcY TO 0
DEFAULT nWidth TO ::Width()
DEFAULT nHeight TO ::Height()
DEFAULT nDstX TO 0
DEFAULT nDstY TO 0
IF oDestImage == NIL
IF ::IsTrueColor()
oDestImage := GDImage():CreateTrueColor( nWidth, nHeight )
ELSE
oDestImage := GDImage():Create( nWidth, nHeight )
ENDIF
ENDIF
gdImageCopy( oDestImage:pImage, ::pImage, nDstX, nDstY, nSrcX, nSrcY, nWidth, nHeight )
RETURN oDestImage
METHOD CopyResized( nSrcX, nSrcY, nSrcWidth, nSrcHeight, nDstX, nDstY, nDstWidth, nDstHeight, oDestImage ) CLASS GDImage
DEFAULT nSrcX TO 0
DEFAULT nSrcY TO 0
DEFAULT nSrcWidth TO ::Width()
DEFAULT nSrcHeight TO ::Height()
DEFAULT nDstX TO 0
DEFAULT nDstY TO 0
DEFAULT nDstWidth TO ::Width()
DEFAULT nDstHeight TO ::Height()
IF oDestImage == NIL
IF ::IsTrueColor()
oDestImage := GDImage():CreateTrueColor( nDstWidth, nDstHeight )
ELSE
oDestImage := GDImage():Create( nDstWidth, nDstHeight )
ENDIF
ENDIF
gdImageCopyResized( oDestImage:pImage, ::pImage, nDstX, nDstY, nSrcX, nSrcY, nDstWidth, nDstHeight, nSrcWidth, nSrcHeight )
RETURN oDestImage
METHOD CopyResampled( nSrcX, nSrcY, nSrcWidth, nSrcHeight, nDstX, nDstY, nDstWidth, nDstHeight, oDestImage ) CLASS GDImage
DEFAULT nSrcX TO 0
DEFAULT nSrcY TO 0
DEFAULT nSrcWidth TO ::Width()
DEFAULT nSrcHeight TO ::Height()
DEFAULT nDstX TO 0
DEFAULT nDstY TO 0
DEFAULT nDstWidth TO ::Width()
DEFAULT nDstHeight TO ::Height()
IF oDestImage == NIL
IF ::IsTrueColor()
oDestImage := GDImage():CreateTrueColor( nDstWidth, nDstHeight )
ELSE
oDestImage := GDImage():Create( nDstWidth, nDstHeight )
ENDIF
ENDIF
gdImageCopyResampled( oDestImage:pImage, ::pImage, nDstX, nDstY, nSrcX, nSrcY, nDstWidth, nDstHeight, nSrcWidth, nSrcHeight )
RETURN oDestImage
METHOD CopyRotated( nSrcX, nSrcY, nWidth, nHeight, nDstX, nDstY, nAngle, oDestImage ) CLASS GDImage
DEFAULT nSrcX TO 0
DEFAULT nSrcY TO 0
DEFAULT nWidth TO ::Width
DEFAULT nHeight TO ::Height
DEFAULT nDstX TO nWidth / 2
DEFAULT nDstY TO nHeight / 2
DEFAULT nAngle TO 90
IF oDestImage == NIL
IF ::IsTrueColor()
oDestImage := GDImage():CreateTrueColor( nWidth, nHeight )
ELSE
oDestImage := GDImage():Create( nWidth, nHeight )
ENDIF
ENDIF
//__OutDebug( nAngle )
gdImageCopyRotated( oDestImage:pImage, ::pImage, nDstX, nDstY, nSrcX, nSrcY, nWidth, nHeight, nAngle )
RETURN oDestImage
METHOD CopyMerge( nSrcX, nSrcY, nWidth, nHeight, nDstX, nDstY, nPerc, oDestImage ) CLASS GDImage
DEFAULT nSrcX TO 0
DEFAULT nSrcY TO 0
DEFAULT nWidth TO ::Width
DEFAULT nHeight TO ::Height
DEFAULT nDstX TO 0
DEFAULT nDstY TO 0
DEFAULT nPerc TO 100
IF oDestImage == NIL
IF ::IsTrueColor()
oDestImage := GDImage():CreateTrueColor( nWidth, nHeight )
ELSE
oDestImage := GDImage():Create( nWidth, nHeight )
ENDIF
ENDIF
gdImageCopyMerge( oDestImage:pImage, ::pImage, nDstX, nDstY, nSrcX, nSrcY, nWidth, nHeight, nPerc )
RETURN oDestImage
METHOD CopyMergeGray( nSrcX, nSrcY, nWidth, nHeight, nDstX, nDstY, nPerc, oDestImage ) CLASS GDImage
DEFAULT nSrcX TO 0
DEFAULT nSrcY TO 0
DEFAULT nWidth TO ::Width
DEFAULT nHeight TO ::Height
DEFAULT nDstX TO 0
DEFAULT nDstY TO 0
DEFAULT nPerc TO 100
IF oDestImage == NIL
IF ::IsTrueColor()
oDestImage := GDImage():CreateTrueColor( nWidth, nHeight )
ELSE
oDestImage := GDImage():Create( nWidth, nHeight )
ENDIF
ENDIF
gdImageCopyMergeGray( oDestImage:pImage, ::pImage, nDstX, nDstY, nSrcX, nSrcY, nWidth, nHeight, nPerc )
RETURN oDestImage
METHOD CopyZoomed( nPerc, nSrcX, nSrcY, nSrcWidth, nSrcHeight ) CLASS GDImage
LOCAL oDestImage
LOCAL nDstX, nDstY, nDstWidth, nDstHeight
DEFAULT nPerc TO 100
DEFAULT nSrcX TO 0
DEFAULT nSrcY TO 0
DEFAULT nSrcWidth TO ::Width()
DEFAULT nSrcHeight TO ::Height()
IF nPerc < 0
nPerc := 100
ENDIF
nDstX := 0
nDstY := 0
nDstWidth := nSrcWidth * nPerc / 100
nDstHeight := nSrcHeight * nPerc / 100
IF ::IsTrueColor()
oDestImage := GDImage():CreateTrueColor( nDstWidth, nDstHeight )
ELSE
oDestImage := GDImage():Create( nDstWidth, nDstHeight )
ENDIF
gdImageCopyResampled( oDestImage:pImage, ::pImage, nDstX, nDstY, nSrcX, nSrcY, nDstWidth, nDstHeight, nSrcWidth, nSrcHeight )
RETURN oDestImage
METHOD Rotate( nAngle, lInside ) CLASS GDImage
LOCAL oDestImage
LOCAL nWidth, nHeight
LOCAL nAngRad := nAngle * PI() / 180
DEFAULT lInside TO .F.
IF !lInside
nWidth := ::Width * cos( nAngRad ) + ::Height * sin( nAngRad )
nHeight := ::Width * sin( nAngRad ) + ::Height * cos( nAngRad )
ELSE
nWidth := ::Width
nHeight := ::Height
ENDIF
//__OutDebug( ::Width, ::Height )
//__OutDebug( nWidth, nHeight )
IF ::IsTrueColor()
oDestImage := GDImage():CreateTrueColor( nWidth, nHeight )
ELSE
oDestImage := GDImage():Create( nWidth, nHeight )
ENDIF
IF !lInside
::CopyRotated( ,,,, nWidth - nWidth/2, nHeight - nHeight/2, nAngle, oDestImage )
ELSE
::CopyRotated( ,,,,,, nAngle, oDestImage )
ENDIF
::Destroy()
Self := ::CloneDataFrom( oDestImage )
//Self := __ObjClone( oDestImage ) // non funziona
// Move new image to existing one
// Signal that this image must not be destroyed
oDestImage:lDestroy := .F.
oDestImage := NIL
RETURN Self
METHOD Crop( nX, nY, nWidth, nHeight ) CLASS GDImage
LOCAL oDestImage
oDestImage := ::CopyResized( nX, nY, nWidth, nHeight, 0, 0, nWidth, nHeight )
::Destroy()
Self := ::CloneDataFrom( oDestImage )
//Self := __ObjClone( oDestImage ) // non funziona
// Move new image to existing one
// Signal that this image must not be destroyed
oDestImage:lDestroy := .F.
oDestImage := NIL
RETURN Self
METHOD Resize( nWidth, nHeight ) CLASS GDImage
LOCAL oDestImage
oDestImage := ::CopyResampled( 0, 0, NIL, NIL, 0, 0, nWidth, nHeight )
::Destroy()
Self := ::CloneDataFrom( oDestImage )
//Self := __ObjClone( oDestImage ) // non funziona
// Move new image to existing one
// Signal that this image must not be destroyed
oDestImage:lDestroy := .F.
oDestImage := NIL
RETURN Self
METHOD Zoom( nPerc ) CLASS GDImage
LOCAL oDestImage
oDestImage := ::CopyZoomed( nPerc )
::Destroy()
Self := ::CloneDataFrom( oDestImage )
//Self := __ObjClone( oDestImage ) // non funziona
// Move new image to existing one
// Signal that this image must not be destroyed
oDestImage:lDestroy := .F.
oDestImage := NIL
RETURN Self
METHOD Clone() CLASS GDImage
LOCAL oDestImage
LOCAL pImage
IF ::IsTrueColor()
oDestImage := GDImage():CreateTrueColor( ::Width, ::Height )
ELSE
oDestImage := GDImage():Create( ::Width, ::Height )
ENDIF
pImage := oDestImage:pImage
oDestImage := oDestImage:CloneDataFrom( Self )
//oDestImage := __objClone( Self )
oDestImage:pImage := pImage
::Copy( 0, 0, ::Width, ::Height, 0, 0, oDestImage )
//pImage := oDestImage:pImage
//// Signal that this image must not be destroyed
//oDestImage:lDestroy := .F.
//oDestImage := NIL
//oDestImage:pImage := pImage
RETURN oDestImage
METHOD Say( x, y, cString, color, nAlign ) CLASS GDImage
LOCAL nWidth, nLen
LOCAL nPosX
DEFAULT color TO ::pColor
DEFAULT nAlign TO gdAlignLeft
IF nAlign == gdAlignCenter
nWidth := ::GetFontWidth()
nLen := Len( cString )
nPosX := x - ( nLen / 2 * nWidth )
ELSEIF nAlign == gdAlignRight
nWidth := ::GetFontWidth()
nLen := Len( cString )
nPosX := x - ( nLen * nWidth )
ELSE
nPosX := x
ENDIF
gdImageString( ::pImage, ::pFont, nPosX, y, cString, color )
RETURN Self
METHOD SayFreeType( x, y, cString, cFontName, nPitch, nAngle, color, nAlign, ;
nLineSpacing, nCharMap, nResolution ) CLASS GDImage
LOCAL nWidth, nLen
LOCAL nPosX
DEFAULT nAlign TO gdAlignLeft
DEFAULT color TO ::pColor
DEFAULT cFontName TO ::cFontName
DEFAULT nPitch TO ::nFontPitch
DEFAULT nAngle TO ::nFontAngle
IF nAlign == gdAlignCenter
nWidth := nPitch //gdImageFTWidth( cFontName, nPitch )//, ::Radians( nAngle ) ) //::GetFontWidth()
//__OutDebug( "nWidth", nWidth )
nLen := Len( cString )
nPosX := x - ( (nLen / 2) * nWidth )
ELSEIF nAlign == gdAlignRight
nWidth := gdImageFTWidth( cFontName, nPitch ) //, ::Radians( nAngle ) ) //::GetFontWidth()
nLen := Len( cString )
nPosX := x - ( nLen * nWidth )
ELSE
nPosX := x
ENDIF
gdImageStringFT( ::pImage, color, cFontName, nPitch, ::Radians( nAngle ), nPosX, y, ;
cString, nLineSpacing, nCharMap, nResolution )
RETURN Self
METHOD CloneDataFrom( oSrc )
// copy values from Source to Dest
// please update in case of new datas
::pImage := oSrc:pImage
::pBrush := oSrc:pBrush
::pTile := oSrc:pTile
::pFont := oSrc:pFont
::pColor := oSrc:pColor
::cFontName := oSrc:cFontName
::nFontPitch := oSrc:nFontPitch
::nFontAngle := oSrc:nFontAngle
::aPoints := AClone( oSrc:aPoints )
::aStyles := AClone( oSrc:aStyles )
::lDestroy := oSrc:lDestroy
::hFile := oSrc:hFile
::cType := oSrc:cType
::cMime := oSrc:cMime
RETURN Self