Transparent gif has black background

[2006 IR Open Dicussion]

By: Christiaan - christiaan_se

Transparent gif has black background

2006-02-17 07:38

Hi,

I have a transparent gif image. I use a parameter to load the image as a buffered image. The background appears black. When loading the image using IReport (so a path is used) the image background is transparent. Any thoughts?

 

kind regards,

Christiaan

 

<image scaleImage="FillFrame" vAlign="Top" hAlign="Left" isUsingCache="false" evaluationTime="Page" hyperlinkType="None" hyperlinkTarget="Self" >

<reportElement

mode="Transparent"

x="6"

y="2"

width="77"

height="16"

forecolor="#000000"

backcolor="#FFFFFF"

key="image-1"

stretchType="NoStretch"

positionType="FixRelativeToTop"

isPrintRepeatedValues="true"

isRemoveLineWhenBlank="false"

isPrintInFirstWholeBand="false"

isPrintWhenDetailOverflows="false"/>

<box topBorder="None" topBorderColor="#000000" leftBorder="None" leftBorderColor="#000000" rightBorder="None" rightBorderColor="#000000" bottomBorder="None" bottomBorderColor="#000000"/>

<graphicElement stretchType="NoStretch" pen="None" fill="Solid" />

<imageExpression class="java.awt.Image"><![CDATA[$P{image}]]></imageExpression>

</image>

[maxpog23]

Hello,

I have the same problem, maybe you resolved it since ...

[chr15athome]

What you veiwing the report with?

[C-Box]

Don't use java.awt.Image for transparent GIFs.... just load it as InputStream and you'll get transparent GIF's working!

 

hth

C-Box

[maxpog23]

Hello,

I create the stream using ImageIO class, I pass it to my report as a parameter and then in my report I use java.io.InputStream to renderer the picture.

I get nothing. What do I do wrong?

 

Code:

ImageIO.createImageInputStream(image)

[maxpog23]

Ok I finally manage to use an inputStream to have a transparent background.

thanks C-Box