Java jspImage V 3.03
Version française Francais
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INDEX


News V 3.03
VERSION 3.03
  • Support JPEG format
  • Add Rotation (Graphics2D)
  • Use "javax.imagio" API JDK 1.4 to work without graphics envireonnement (X11)
  • Add line and Rect size
  • Add arrows in lines
  • ...>/li>

VERSION 2.05
  • add BMP formats
  • add encoding parameter.
  • Some changes for aDraw
  • add freehand command
  • ...
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Description
jspImage is an JSP component to buil dynamicly an image on the server. This componant support JPEG, GIF and PNG formats.
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Registration
jspImage comonent is FreeWare for non commercial sites.
For personal use, please add a link on your site back to my Home Page (http://www.javaside.com/) and send me the URL where you wish to place the jspImage component.
For professional / commercial use, you will need to obtain a "professional registration". With this registration you can use jspImage with no reference to me and I will send you the complete jspImage source code.
If you want to use jspImage in another application, then you must obtain a "professionnal registration".
For more information about "Professional registration" : R. BERTHOU.

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JSP Source
<%jsp:useBean id="zz" scope="session" class="javaside.Rbl14.jspImage"/><%
       int iW, iH	    ; // Image size
       String sFormat   ; // Format (gif/png/jpeg)

       String t = null ;
       t = request.getParameter("width") ;
       if (t == null)
           iW = 300 ;
       else
           iW = java.lang.Integer.parseInt(t) ;

       t = request.getParameter("height") ;
       if (t == null)
           iH = 250 ;
       else
           iH = java.lang.Integer.parseInt(t) ;

       t = request.getParameter("format") ;
       if (t == null)
           sFormat = "jpeg" ;
       else
           sFormat = t ;


       // Initialisation et definition de la taille de l image
       zz.init(iW, iH) ;

       zz.setColor(0xF0F0F0) ;
       zz.fillRect(0, 0, 250, 130) ;

       zz.setColor(0x4040FF) ;
       zz.fillRect(35, 90, 80, 30);

       zz.drawImage(0, 140, 25) ;

       zz.setColor( 0x40FF40 ) ;
       zz.drawOval(165, 105, 80, 30) ;

       zz.setColor(0) ;
       zz.setFont("Serif", 2, 18) ;
       zz.drawString("JavaSide.com...", 25, 82) ;

       zz.setColor( 0x0000FF ) ;
       zz.setFont("Courier", 1, 12 ) ;
       zz.drawString( new java.util.Date().toString(), 5, 152) ;

       zz.setColor(0x404020) ;
       zz.drawString( "pas de rotation ", 120, 280, 0) ;
       zz.drawString( "rotation de  45°", 120, 280, 45) ;
       zz.drawString( "rotation de  90°", 120, 280, 90) ;
       zz.drawString( "rotation de 135",  120, 280, 135) ;
       zz.drawString( "rotation de 180°", 120, 280, 180) ;
       zz.drawString( "rotation de -45°", 120, 280, 270 ) ;

       zz.build() ;
       response.reset();
       response.setContentType("image/" + sFormat );
       response.addHeader("Content-Disposition","filename=jspImage." + sFormat);

       zz.encode( response, sFormat ) ;
       response.flushBuffer();

       zz.clear() ;
%>
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Functions
Functions detail
NomDescription
init(int w, int h) action : init image and size definition
newImage() action : init image (clear all)
loadImage(String s, int Id) action : read external image
build() action : build image
setEncoding(String senc) change default encoding
readFile(String f) action : init and read external file to get draw command
readFile(String f, String enc) action : init and read external file to get draw command with new encoding value
readData(String f) action : init and read data in a String to get draw command (for aDraw applet)
addData(String data) read data in a String (for aDraw applet).
getArray(int i) action : get Image in bytes array
saveAs(String s) action : Save image
clear() action : free resources
setColor(int i) action : select color
setColor(int r, int g, int b) action : select color
setFont(String face, int style, int size) action : select font
drawLine(int x, int y, int x2, int y2) action : Draw line
drawLine(int sz, int x, int y, int x2, int y2) draw line with sz size
drawString(String s, int x, int y) action : Draw String
drawString(String s, int x, int y, String enc) action : Draw String with new encoding
drawString(String s, int x, int y, int rot) action : Draw String with a rotation
drawRect(int x, int y, int w, int h) action : Draw rectangle empty
drawRect(int sz, int x, int y, int w, int h) action : Draw rectangle empty with a size "sz"
fillRect(int x, int y, int w, int h) action : Draw rectangle filled
draw3DRect(int x, int y, int w, int h, boolean b) action : Draw 3D rectangle empty
fill3DRect(int x, int y, int w, int h, boolean b) action : Draw 3D rectangle filled
drawRoundRect(int x, int y, int w, int h, int r1, int r2) action : Draw rounded rectangle empty
fillRoundRect(int x, int y, int w, int h, int r1, int r2) action : Draw rectangle bord arrondi filled
drawOval(int x, int y, int w, int h) action : Draw oval empty
drawOval(int sz, int x, int y, int w, int h) action : Draw oval empty with size
fillOval(int x, int y, int w, int h) action : Draw oval filled
drawImage(int iId, int x, int y) action : Draw a loaded image
drawImagePart(int iId, int x, int y, int X, int Y, int W, int H) action : Draw a part of loaded image
fillZone(int x, int y, int color) action : Fill zone (change Color)
drawArc(int x, int y, int w, int h, int r1, int r2) action : Draw arc empty
fillArc(int x, int y, int w, int h, int r1, int r2) action : Draw arc filled
fillZone(int x, int y, int color) action : Fill zone (change Color)
rotate(int ror) action : Make a rotation for next drawing commands.
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File Format
With this file you can define some or complete draw commande in external data file.
ColumNameTypeDescription
file.txt (List data file) tChart2
1iIdintcommande Id
  • drawRect = 1
  • draw3DRect = 2
  • drawRoundRect = 3
  • drawOval = 4
  • drawArc = 5
  • fillRect = 6
  • fill3DRect = 7
  • fillRoundRect = 8
  • fillOval = 9
  • fillArc = 10
  • fillZone = 11
  • drawString = 20
  • drawLine = 21
  • drawImage = 22
  • drawImagePart = 23
  • freehand = 24
  • loadImage = 30
  • setFont = 31
  • setColor = 32
  • changeClr = 33
  • rotate = 34
2..nParametersint ou Stringcommand parameters (";" sepparator)
Sample
// setColor Color(0xFFFFFF)
32 ; -1 ;
6  ; 0 ; 0 ; 600 ; 400 ;
// setColor Color(0x0000FF)
32 ; 255 ;
6  ; 100 ; 10 ; 60 ; 100 ;
4  ; 50 ; 100 ; 100 ; 150 ;
32 ; -255 ;
6  ; 10 ; 100 ; 80 ; 150 ;
32 ; 0 ;
20 ; Test Rbl ; 20 ; 50 ;
20 ; Ligne 2  ; 20 ; 150 ;
31 ; Arial ; 0 ; 15 ;
20 ; Arial 15 plain  ; 220 ; 50 ;
32 ; 22554 ;
31 ; Times ; 2 ; 12  ;
20 ; Times 12 italic ;  220 ; 180 ;
22 ; 0 ; 50 ; 120 ;
Sample jspImage.txt
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History
In construction...

1.00Creation...
1.20Add cropImage and fillZone...
2.00 Adaptation for aDraw
3.03 JDK 1.4 support and more

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Download files
jspImage V 3.03 jspImage.zip (83 KB)      (backup)
jspImage V 2.05English jspImage_us.zip (81 KB)      (backup)
jspImage V 2.05 Francais jspImage_fr.zip (81 KB)      (backup)
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Copyright © 1996..2003, BERTHOU. All right reserved.
Last change : 05 March 2003 18H20