Anybody here for helping me out? Or does anyone know an other forum where i
might get some help =)
Cheffe wrote:
>
> Since i didnt get it working right...
> I tried to produce a small sample with the same behaviour, but i cant
> produce this with my own small sample.
> So i think the prob must be somewhere else in the code of the awt
> rendering.
> Here is my example:
>
> // Sample should show that thin lines disappear while the bufferedimage is
> scaled,
> // but it doesnt happen, its only happening in the awt-viewer in fop
> // Are the lines in Java2DRenderer painted in a different way to this
> sample?
>
> package test;
>
> import java.awt.BorderLayout;
> import java.awt.Color;
> import java.awt.Graphics;
> import java.awt.Graphics2D;
> import java.awt.RenderingHints;
> import java.awt.geom.AffineTransform;
> import java.awt.geom.Line2D;
> import java.awt.image.BufferedImage;
>
> import javax.swing.JFrame;
> import javax.swing.JPanel;
>
> public class Test
> {
>
> public static void main(String[] args)
> {
> JFrame f = new JFrame();
> f.setSize(200,200);
> f.setContentPane(new MyPanel());
> f.setVisible(true);
> f.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
> f.setLocationRelativeTo(null);
> }
>
> }
>
> class MyPanel extends JPanel
> {
>
> private static final long serialVersionUID = 736771368105010125L;
>
> private BufferedImage imageBuffer;
>
> public MyPanel()
> {
> setLayout(new BorderLayout());
> AffineTransform f = new AffineTransform();
> f.scale(0.3453543455f,0.3453543455f);
> imageBuffer = new BufferedImage(100, 100,
> BufferedImage.SCALE_SMOOTH);
> Graphics2D graphicsBuffer = imageBuffer.createGraphics();
> graphicsBuffer.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
> RenderingHints.VALUE_ANTIALIAS_ON);
> graphicsBuffer.setRenderingHint(RenderingHints.KEY_RENDERING,
> RenderingHints.VALUE_RENDER_QUALITY);
> graphicsBuffer.setTransform(f);
> graphicsBuffer.setColor(Color.WHITE);
> graphicsBuffer.draw(new Line2D.Float(30, 10, 0.2f, 10));
> graphicsBuffer.draw(new Line2D.Float(40, 10, 0.5f, 20));
> graphicsBuffer.draw(new Line2D.Float(50, 10, 0f, 30));
> }
>
> public void paintComponent(Graphics g) {
> g.drawImage(imageBuffer, 0, 0, null);
> }
>
> }
>
>
>
>
> Cheffe wrote:
>>
>> Me again.
>> I tried some changes in the source to find a solution for the prob...
>> I did the follow:
>>
>> -ImageProxyPanel-
>> paintComponent(Graphics g)
>> {
>> getPageasImage(g); // changed the params
>> ...
>> //g.paintImage(...) //commented out
>> }
>>
>> - i think it was Java2DRenderer -
>> getPageasImage(Graphics gg)
>> {
>> //Graphics g = image.create.Graphics(); //commented out
>> Graphics g = gg; //changed the params
>> ...
>> }
>>
>> So it painted it directly to the panel, but the lines are still hiding
>> when i zoom.
>> Any helpful hints are still welcome.
>> I tried to investigate how the debuglines in the viewer are made, cause
>> the debuglines are painted correctly while scaling but i didnt get it.
>> Difficult to understand =)
>>
>>
>> Jeremias Maerki-2 wrote:
>>>
>>> Oh, I think you hit the nail on the head with that link. It is indeed so
>>> that the page is first painted to a bitmap which is then painted on the
>>> panel. So, it appears as if painting the page directly on the panel
>>> could potentially solve the problem.
>>>
>>> But what I don't know is whether there was a particular reason that we
>>> use (and cache) bitmaps to paint the pages instead of painting them
>>> directly. At first glance, it appears to be a waste of a lot of memory.
>>> If I were you I'd experiment with changing
>>> ImageProxyPanel.paintComponent().
>>>
>>> On 22.01.2007 13:47:05 Cheffe wrote:
>>>>
>>>> I found somethin but dont know exactly how to use the info =(
>>>> http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4109583 Sun Bug
>>>> 4109583
>>>> Someone says if you us use transed graphics to draw line there is no
>>>> prob
>>>> anymore.
>>>>
>>>>
>>>> Jeremias Maerki-2 wrote:
>>>> >
>>>> > It seems more like a general Java2D issue. Can you please search the
>>>> web
>>>> > for hints? I'm sure someone else has run into a similar problem
>>>> before.
>>>> > From there we can see if we can find a solution. I don't know
>>>> off-hand
>>>> > how to solve this.
>>>> >
>>>> > On 22.01.2007 10:54:39 Cheffe wrote:
>>>> >>
>>>> >> Has anyone also realized this issue in the AWTViewer? A hint is
>>>> always
>>>> >> welcome =)
>>>
>>>
>>> Jeremias Maerki
>>>
>>>
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>>>
>>>
>>>
>>
>>
>
>
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