Hey people,
I'm working in a particular project, where I must export the
information that I got from the DB into a <mx:Panel> with a chart and
a datagrid, and well as I got the project the developer export that as
an image.
So I'm trying to workaround a little detail.
The panel get's so big due to the information that I have on the
report, so the image becomes bigger, and the exportation won't work!!
I'm adding you my code in here, what I'm trying and why.
/* This is the beginning of the class with the first method */
public static function exportPDF
(pnlRankIndiceCalidad:Panel, jspFile:String,
marca:String, dirOper:String,
mesDesde:String, anoDesde:String,
mesHasta:String, anoHasta:String, nomArchivo:String,
metodo:Number):void
{
var myPDF:PDF;
var metodoStr:String = null;
myPDF = new PDF (Orientation.LANDSCAPE, Unit.MM,
Size.LEGAL);
myPDF.addPage();
// Here comes more code...
// pnlRankIndiceCalidad is the panel where I
have both objects Datagrid and Chart
if( pnlRankIndiceCalidad.height > 2800 ) {
var repeticiones : int =
pnlRankIndiceCalidad.height / 2800;
/*
At this line is exactly where the code is sending me the exception
that I'm talking about down you'll find the code that obtenBitmapData
function has
*/
var bd : BitmapData = obtenBitmapData(
UIComponent
( pnlRankIndiceCalidad ) );
var pixeles : ByteArray = bd.getPixels( new
Rectangle( 0, 0,
bd.width, bd.height ) );
pixeles.position = 0;
var repeticion : Number = 0;
var posicionInicio : Number = 0;
var posicionFin : Number = 2800;
while ( repeticion <= repeticiones ) {
var copiaImagen:BitmapData = new
BitmapData( 1040, 2800, true );
Alert.show("Start at position: " +
posicionInicio + " end in: " +
posicionFin);
for( var i:uint=posicionInicio ; i <
posicionFin ; i++ )
{
for( var j:uint=0; j<1040; j++ )
{
copiaImagen.setPixel( j, i,
pixeles.readUnsignedInt() );
}
}
var imagen: Bitmap = new Bitmap(
copiaImagen );
imagen.width = 1040;
imagen.height = 2800;
myPDF.addPage();
myPDF.addImage( imagen,10,10,250,172 );
repeticion++;
posicionInicio = posicionFin;
posicionFin += posicionFin;
}
}
else {
myPDF.addImage(pnlRankIndiceCalidad, 50, 35,
250, 172);
}
/*
Here come more code that's working just well
*/
/*
This function is the one that's in charge of the transformation of the
UIComponent into a BitmapData.
*/
private static function obtenBitmapData( target : UIComponent )
:
BitmapData {
var bitmap : BitmapData = new BitmapData( target.width,
target.height );
var m : Matrix = new Matrix();
bitmap.draw( target, m );
return bitmap;
}
The exception that this code is sending is the follow
ArgumentError: Error #2015: invalid BitmapData.
at flash.display::BitmapData()
at
com.posadas.linc.reportes.rankingIndicesCalidad::RankingIndicesCalidadPDFExporter
$/obtenBitmapData()[/media/disk/desarrollo/posadas/LincPosadas/
src_flex/com/posadas/linc/reportes/rankingIndicesCalidad/
RankingIndicesCalidadPDFExporter.as:81]
at
com.posadas.linc.reportes.rankingIndicesCalidad::RankingIndicesCalidadPDFExporter
$/exportPDF()[/media/disk/desarrollo/posadas/LincPosadas/src_flex/com/
posadas/linc/reportes/rankingIndicesCalidad/
RankingIndicesCalidadPDFExporter.as:58]
The first reference on the stacktrace is the function
"obtenBitmapData" and the second one is where that function is
called!!
Please help me out to understand or help me to fix this details.
What I'm pretending right now, is that is the image is too big to fit
on one page, cut it in ByteArray object and create one by one, at the
same time that gets added to the PDF object.
BTW the API that I'm using for this is the AlivePDF
Any help will be really great!!
Thanks in advance to all!!
Have a great day!
Regards,
Mike
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