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harbour-core/harbour/contrib/hbgd/gd.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 prg level (client api) interface code.
*
* Copyright 2004 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"
FUNCTION gdImageChar( im, font, x, y, char, color )
RETURN gdImageString( im, font, x, y, char, color )
FUNCTION gdImageCharUp( im, font, x, y, char, color )
RETURN gdImageStringUp( im, font, x, y, char, color )
FUNCTION gdImageCircle( im, cx, cy, w, color )
RETURN gdImageArc( im, cx, cy, w, w, 0, 360, color )
FUNCTION gdImageFilledCircle( im, cx, cy, w, color )
RETURN gdImageFilledEllipse( im, cx, cy, w, w, color )
FUNCTION gdImageEllipse( im, cx, cy, w, h, color )
RETURN gdImageArc( im, cx, cy, w, h, 0, 360, color )
FUNCTION gdImageFTWidth( fontname, ptsize, angle )
LOCAL nWidth := 0
LOCAL cErr
LOCAL aRect := Array(8)
DEFAULT fontname TO "Arial"
DEFAULT ptsize TO 8
DEFAULT angle TO 0
cErr := gdImageStringFTEx( , @aRect, 0, fontname, ptsize, angle, 0, 0, "M" )
//__OutDebug( "ptsize", ptsize, aRect )
IF cErr == ""
nWidth := aRect[3] - aRect[1]
ENDIF
RETURN nWidth
FUNCTION gdImageFTHeight( fontname, ptsize, angle )
LOCAL nWidth := 0
LOCAL cErr
LOCAL aRect := Array(8)
DEFAULT fontname TO "Arial"
DEFAULT ptsize TO 8
DEFAULT angle TO 0
cErr := gdImageStringFTEx( , @aRect, 0, fontname, ptsize, angle, 0, 0, "M" )
IF cErr == ""
nWidth := aRect[2] - aRect[8]
ENDIF
RETURN nWidth
FUNCTION gdImageFTSize( string, fontname, ptsize, angle )
LOCAL nWidth := 0
LOCAL nHeight := 0
LOCAL nX, nY
LOCAL cErr
LOCAL aRect := Array(8)
DEFAULT fontname TO "Arial"
DEFAULT ptsize TO 8
DEFAULT angle TO 0
cErr := gdImageStringFTEx( , @aRect, 0, fontname, ptsize, angle, 0, 0, string )
//__OutDebug( "ptsize", ptsize, aRect )
IF cErr == ""
nWidth := aRect[3] - aRect[1]
nHeight := aRect[2] - aRect[8]
nX := aRect[1]
nY := aRect[2]
ENDIF
RETURN { nWidth, nHeight, nX, nY }
FUNCTION gdImageStringFT( im, fg, fontname, ptsize, angle, x, y, string, ;
linespacing, charmap, resolution )
LOCAL cErr
LOCAL aRect := Array(8)
cErr := gdImageStringFTEx( , @aRect, fg, fontname, ptsize, angle, x, y, string, linespacing, charmap, resolution )
IF cErr == ""
cErr := gdImageStringFTEx( im, aRect, fg, fontname, ptsize, angle, x, y, string, linespacing, charmap, resolution )
ENDIF
RETURN cErr
FUNCTION gdImageFromFile( cFile )
LOCAL cPath, cName, cExt, cDrive
LOCAL cType, cMime
LOCAL hFile := {=>}
LOCAL oImage
IF hb_FileExists( cFile )
HB_FNameSplit( cFile, @cPath, @cName, @cExt, @cDrive )
//TraceLog( cFile, cPath, cName, cExt, cDrive )
cExt := Lower( cExt )
DO CASE
CASE cExt == ".jpg" .OR. cExt == ".jpeg"
hFile[ "file" ] := cFile
hFile[ "path" ] := cPath
hFile[ "name" ] := cName
hFile[ "ext" ] := cExt
hFile[ "drive" ] := cDrive
cType := "jpeg"
cMime := "image/jpeg"
oImage := GDImage():LoadFromJpeg( cFile )
CASE cExt == ".gif"
hFile[ "file" ] := cFile
hFile[ "path" ] := cPath
hFile[ "name" ] := cName
hFile[ "ext" ] := cExt
hFile[ "drive" ] := cDrive
cType := "gif"
cMime := "image/gif"
oImage := GDImage():LoadFromGif( cFile )
CASE cExt == ".png"
hFile[ "file" ] := cFile
hFile[ "path" ] := cPath
hFile[ "name" ] := cName
hFile[ "ext" ] := cExt
hFile[ "drive" ] := cDrive
cType := "png"
cMime := "image/png"
oImage := GDImage():LoadFromPng( cFile )
ENDCASE
ENDIF
RETURN { oImage, hFile, cType, cMime }
FUNCTION gdImageToString( oImage )
LOCAL cString
//Tracelog( "oImage, oImage:ClassName, oImage:IsDerivedFrom( 'GDIMAGE' )", ;
// oImage, oImage:ClassName, oImage:IsDerivedFrom( 'GDIMAGE' ) )
IF ISOBJECT( oImage ) .AND. ( oImage:ClassName == "GDIMAGE" .OR. oImage:IsDerivedFrom( "GDIMAGE" ) )
WITH OBJECT oImage
IF :cType != NIL
DO CASE
CASE :cType == "jpeg"
cString := :ToStringJpeg()
CASE :cType == "gif"
cString := :ToStringGif()
CASE :cType == "png"
cString := :ToStringPng()
ENDCASE
ENDIF
END
ENDIF
RETURN cString
PROCEDURE gdImageToFile( oImage, cFile )
LOCAL cString, cExt
DEFAULT cFile TO "image"
//Tracelog( "oImage, oImage:ClassName, oImage:IsDerivedFrom( 'GDIMAGE' )", ;
// oImage, oImage:ClassName, oImage:IsDerivedFrom( 'GDIMAGE' ) )
IF ISOBJECT( oImage ) .AND. ( oImage:ClassName == "GDIMAGE" .OR. oImage:IsDerivedFrom( "GDIMAGE" ) )
WITH OBJECT oImage
IF :cType != NIL
DO CASE
CASE :cType == "jpeg"
cString := :ToStringJpeg()
cExt := ".jpg"
CASE :cType == "gif"
cString := :ToStringGif()
cExt := ".gif"
CASE :cType == "png"
cString := :ToStringPng()
cExt := ".png"
OTHERWISE
cExt := ""
ENDCASE
IF cString != NIL
hb_MemoWrit( cFile + cExt, cString )
ENDIF
ENDIF
END
ENDIF
RETURN
PROCEDURE gdImageToHandle( oImage, nHandle )
DEFAULT nHandle TO 1
//Tracelog( "oImage, oImage:ClassName, oImage:IsDerivedFrom( 'GDIMAGE' )", ;
// oImage, oImage:ClassName, oImage:IsDerivedFrom( 'GDIMAGE' ) )
IF ISOBJECT( oImage ) .AND. ( oImage:ClassName == "GDIMAGE" .OR. oImage:IsDerivedFrom( "GDIMAGE" ) )
WITH OBJECT oImage
IF :cType != NIL
DO CASE
CASE :cType == "jpeg"
:OutputJpeg( nHandle )
CASE :cType == "gif"
:OutputGif( nHandle )
CASE :cType == "png"
:OutputPng( nHandle )
ENDCASE
ENDIF
END
ENDIF
RETURN
/*
////aRect := { 10, 40, 100, 40, 100, 20, 10, 20 } //Array(8)
//aRect := Array(8)
////TraceLog( "aRect = " + hb_dumpVar( aRect ) )
//gdImageStringFtEx( , @aRect, blue, "arial", 20, 30, 20, 90, 'Test')
////TraceLog( "aRect = " + hb_dumpVar( aRect ) )
//? "aRect = " + hb_dumpVar( aRect )
//gdImageStringFtEx(im, aRect, blue, "arial", 20, 30, 20, 90, 'Test')
////TraceLog( "aRect = " + hb_dumpVar( aRect ) )
*/