"no_image_found".gif
Hi everyone, I am sure most of the APEX users hwre have used the DEMO Application that comes with APEX. I have a question related to that. I am sure you are aware of a table called DEMO_IMAGES.
In that table you will see an image_id --> 0, which is the "image_not_found".gif file.
Where is this image stored?? When I checked in Shared components--> Images. I dont see it there.
Reason why I am asking this is that I developed an application by modifiying the demo application. Then I exported the application and Installed it on another server with same APEX version. The database table demo_images is empty. I added an entry in this table pointing to "image_not_found".gif file with image_id = 0 but when I run my application, it is not displaying the image.
So I guess I need to know how can i add this image. I also want to know that when image is added in which directory is it stored??
Thanks
Hi Jason,
The Images are stored in a table called demo_images, or at least that's the way it used to be done. That table was installed as part of the demo app. in older versions of HTMLDB / Apex.
However, I have recently created a workspace on apex.oracle.com and that table seems to be missing from the demo app.
I guess you could export / import this table from one database to the other.
Regards,
BrianL
Similar Messages
-
UTL_FILE write_error when writing large binary files to unix os
I am trying to write large files to a folder in unix from a table containing a BLOB object. The procedure below is called by another procedure I have written to do this. It works in windows environment fine with files up to 360MB. When I run this exact same procedure in UNIX I get an initialization error. When I change the WB in the fopen call to W it works. I can store all the files I want up to 130MB in size. The next size larger file I have is 240MB and it fails after writing the first 1KB passing the utl_file.write_error message. If someone can help me to diagnose the problem, I would really appreciate it. i have been trying everything I can think of to get this to work.
Specifics are, the windows version is 10GR2, on unix we are running on Sun Solaris 9 using 9iR2
PROCEDURE writebin(pi_file_name IN VARCHAR2, pi_file_url IN VARCHAR2, pi_file_data IN BLOB)
IS
v_file_ref utl_file.file_type;
v_lob_size NUMBER;
v_raw_max_size constant NUMBER := 32767;
v_buffer raw(32767);
v_buffer_offset NUMBER := 1;
-- Position in stream
v_buffer_length NUMBER;
BEGIN
-- WB used in windows environment. W used in unix
v_lob_size := dbms_lob.getlength(pi_file_data);
v_file_ref := utl_file.fopen(pi_file_url, pi_file_name, 'WB', v_raw_max_size);
v_buffer_length := v_raw_max_size;
WHILE v_buffer_offset < v_lob_size
LOOP
IF v_buffer_offset + v_raw_max_size > v_lob_size THEN
v_buffer_length := v_lob_size -v_buffer_offset;
END IF;
dbms_lob.READ(pi_file_data, v_buffer_length, v_buffer_offset, v_buffer);
utl_file.put_raw(v_file_ref, v_buffer, TRUE);
v_buffer_offset := v_buffer_offset + v_buffer_length;
END LOOP;
utl_file.fclose(v_file_ref);
END writebin;
Message was edited by:
user599879check if this cample code helps -
CREATE OR REPLACE PROCEDURE prc_unload_blob_to_file IS
vlocation VARCHAR2(16) := ‘LOB_OUTPUT’;
vopen_mode VARCHAR2(16) := ‘w’;
bimax_linesize NUMBER := 32767;
v_my_vr RAW(32767);
v_start_pos NUMBER := 1;
v_output utl_file.file_type;
BEGIN
FOR cur_lob IN (SELECT vmime_type,
blob_resim,
vresim,
dbms_lob.getlength(blob_resim) len
FROM tcihaz_resim a
WHERE rownum < 3 -- for test purposes
ORDER BY a.nresim_id) LOOP
v_output := utl_file.fopen(vlocation,
cur_lob.vresim,
vopen_mode,
bimax_linesize);
dbms_output.put_line(’Column length: ‘ || to_char(cur_lob.len) || ‘ for file: ‘ ||
cur_lob.vresim);
v_start_pos := 1;
IF cur_lob.len < bimax_linesize THEN
dbms_lob.READ(cur_lob.blob_resim,
cur_lob.len,
v_start_pos,
v_my_vr);
utl_file.put_raw(v_output,
v_my_vr,
autoflush => TRUE);
dbms_output.put_line(’Finished Reading and Flushing ‘ || to_char(cur_lob.len) ||
‘ Bytes’ || ‘ for file: ‘ || cur_lob.vresim);
ELSE
dbms_lob.READ(cur_lob.blob_resim,
bimax_linesize,
v_start_pos,
v_my_vr);
utl_file.put_raw(v_output,
v_my_vr,
autoflush => TRUE);
dbms_output.put_line(’Finished Reading and Flushing ‘ || to_char(cur_lob.len) ||
‘ Bytes’ || ‘ for file: ‘ || cur_lob.vresim);
END IF;
v_start_pos := v_start_pos + bimax_linesize;
WHILE (v_start_pos < bimax_linesize) LOOP
-- loop till entire data is fetched
dbms_lob.READ(cur_lob.blob_resim,
bimax_linesize,
v_start_pos,
v_my_vr);
utl_file.put_raw(v_output,
v_my_vr,
autoflush => TRUE);
dbms_output.put_line(’Finished Reading and Flushing ‘ ||
to_char(bimax_linesize + v_start_pos - 1) || ‘ Bytes’ ||
‘ for file: ‘ || cur_lob.vresim);
v_start_pos := v_start_pos + bimax_linesize;
END LOOP;
utl_file.fclose(v_output);
dbms_output.put_line(’Finished successfully and file closed’);
END LOOP;
END prc_unload_blob_to_file;
set serveroutput on
set timing on
create or replace directory LOB_OUTPUT as ‘/export/home/oracle/tutema/’;
GRANT ALL ON DIRECTORY LOB_OUTPUT TO PUBLIC;
exec prc_unload_blob_to_file ;
Column length: 3330 for file: no_image_found.gif
Finished Reading and Flushing 3330 Bytes for file: no_image_found.gif
Finished successfully and file closed
Column length: 10223 for file: OT311.gif
Finished Reading and Flushing 10223 Bytes for file: OT311.gif
Finished successfully and file closed
PL/SQL procedure successfully completedWith 9iR2 PLSQL can write binary files using UTL_FILE put_raw function, prior to Oracle9iR2 you will need to create an external procedure with Java, C, VB or some 3gl language.
Some references -
http://asktom.oracle.com/pls/ask/f?p=4950:8:::::F4950_P8_DISPLAYID:6379798216275
Oracle® Database PL/SQL Packages and Types Reference 10g Release 2 (10.2)
UTL_FILE - http://download-uk.oracle.com/docs/cd/B19306_01/appdev.102/b14258/u_file.htm#sthref14095
http://psoug.org/reference/dbms_lob.html
Metalink Note:70110.1, Subject: WRITING BLOB/CLOB/BFILE CONTENTS TO A FILE USING EXTERNAL PROCEDURES -
XML load error - when moving table data after upgrade
Greetings:
Background:
Previously in our 2.2 instance, we would use the Data Load/Unload feature of APEX to move data in the form of XML from instance 1 to instance 2. This woks well because it moves images also (BLOB)
What Changed:
Recently we did the upgrade to APEX 3.0. The tool is working well, but we are having issues uploading XML data in the same manner we used to. The process wizard works up until time for execution.. the following error message is seen.
XML load error.
Return to application.
Assumption:
I do not believe this is an XML file issues because the file I am testing the process with is from the EMP table, and is from the UNLOAD option on the same DB and SCHEMA.. (testing is unloading the data, than re-loading the same data to the same place)
Internally some permissions or something internal must be missing.
Assistance or suggestions on where to look is greatly appreciated.
Regards,
TimTim,
Sorry for the delay - that silly day job keeps getting in the way.
Here is a small procedure you could use to take the XML data file format exported from Application Express and import into your table. This uses the Java-dependent DBMS_XMLSAVE package, which avoids the issue mentioned above.
create or replace procedure load_xml(
p_clob in clob,
p_schema in varchar2,
p_table in varchar2 )
is
l_insCtx dbms_xmlsave.ctxType;
l_rows number;
begin
l_insCtx := dbms_xmlsave.newContext(p_schema || '.' || p_table);
dbms_xmlsave.setDateFormat(l_insCtx,'yyyy-MM-dd''T''HH:mm:ss.SSS');
l_rows := dbms_xmlsave.insertXML( l_insCtx, p_clob);
dbms_xmlsave.closeContext(l_insCtx);
end load_xml;I then ran the following quick test on apex.oracle.com just for verification.
declare
l_xml varchar2(32000);
begin
l_xml := '<?xml version="1.0"?>
<ROWSET>
<ROW>
<ID>11645117496276327</ID>
<FLOW_ID>30072</FLOW_ID>
<NAME>F11645117496276327/no_image_found.gif</NAME>
<FILENAME>no_image_found.gif</FILENAME>
<MIME_TYPE>image/gif</MIME_TYPE>
<CREATED_BY>JOEL</CREATED_BY>
<CREATED_ON>2007-03-14T05:06:38.000</CREATED_ON>
<BLOB_CONTENT>474946383961C800...(data removed for this example)...41000003B</BLOB_CONTENT>
</ROW>
</ROWSET>';
load_xml( l_xml, 'MY_DB_USER', 'MY_APEX_FILES' );
end;It's now simply a matter of how you get your XML file(s) into a CLOB to call this procedure. The options include:
1) Just pass in a VARCHAR2 as I did in the example above, which would limit you to roughly 32K.
2) You could use DBMS_LOB.LOADCLOBFROMFILE to read it from the database server filesystem.
3) You could upload the file via an APEX application (or some other means within APEX), you could convert the BLOB to a CLOB, and then call this procedure. If you need help with this method, let me know.
Don't forget - as yet another alternative, you could always contact Oracle Support to see what could be done about that underlying database bug.
I hope this helps.
Joel -
Open and edit animated .gif while preserving frame timing
CS4 Premium Design Edition, Win XP
I was disappointed with the removal of Image Ready from CS3 because although some of the functionality was placed into Photoshop 10, there was no way to open and edit an existing animated .gif while preserving the timing of each individual frame. I was told on the PS forum at the time that I really needed to use Fireworks. I resented that, because I was very happy with Image Ready and I didn't want to have to learn a new application just to gain functionality that had been included in previous versions of PS/IM.
I've now got CS4 Premium Design Edition which of course includs Fireworks... and here's what Help has to say on the subject of imported .gifs.
"Note: When you import an animated GIF, the state delay setting defaults to 0.07 seconds. If necessary, use the States panel to restore the original timing."
This is no use to me. What if I don't know the individual frame timings? What if there are 200 frames with varying timings?
Simple question: which current Adobe product is capable of importing a .gif while retaining the frame timings? If anyone knows, or if I've misunderstood the nature of the Fireworks Help quote above, I'd really appreciate some input here. Thanks :)
Not so simple question: why was an excellent gif-editing application thrown out to have its functionality partially replaced by a bunch of scripts and half-effective workarounds cooked up by desperate users ("import a gif by using the video import and typing *.* into the filename box..")? It's a fair question I think.
MarkHi Bob, that's not glib at all, it's a reasonable question.
I uninstalled it along with everything else when I installed CS3, in the reasonable expectation that whatever replaced IR would be at least equal in functionality.
Perhaps I should just dig out CS2 and install IM from there, but I have some serious reservations about doing so, because I don't know if/how a partial install of CS2 will impact upon my installation of CS4, and I'm not confident of getting support.
I am also curious to know if/why Adobe actually removed basic functionality without replicating or replacing it in their other software. I really want to know: which recent, currently supported Adobe product
should I be using in order to regain this functionality? Or do Adobe no longer produce a geniuinely comprehensive .gif-editing application?
Mark -
Published GIF Problems! Please help
I've created a flash animation and published it as a GIF
animation that continuously loops. After previewing my GIF there
are black blocks wherever there is TEXT. Anyone know how to fix
this? I've never encountered this problem before so I have no idea
how to fix it...OK I found a way around this problem... I delete all the text
that I had created within Flash and recreated it in Photoshop. I
rasterized the type in Photoshop the I saved the files as PSD. I
then went in to Flash and imported them to the library. I place the
images of the text where they had originally been in my Flash file.
When I published it as an animated GIF the file was perfect... No
Black or White blocks...
SO you might try that... I'm not sure what Flash changed, but
I used to create text for animiated gif before without any
problems... -
Animated GIF ignoring frame timing
I am trying to create simple animated GIFs with a few layers
of text that simply fade in and fade out in sequence. My initial
attempt worked perfectly. Most frames use the default 7/100's of a
second delay as they fade. A few frames were manually set to much
longer delays so that the text pauses, before fading out to be
replaced by the next text.
When I reopened the file, to adjust the background color, and
then re-saved it, the GIF now plays straight through, ignoring the
timing of each frame. Nothing I do now can get it to pause on the
appropriate frames. I've tried cutting the symbols out and pasting
them into a new file, removing the animation from the symbols and
reapplying it, etc.
Any ideas, anyone?
Thanks in advance.None, None.
-
Hi,
How can I edit an animated gif in Photoshop Elements 6 for Mac?
When I open the file there is just the first frame in one layer - no other layers available.
Thanks!Thanks Barbara!
Barbara B. wrote:
... then bring it to PSE.
I can't drag the single frames from Preview to PSE, because PSE 6 doesn't run in window mode.
(Is this improved in the current version?)
I can only drag the single frames to the desktop (as TIFF files, I guess transparency info is lost then?).
Barbara B. wrote:
... there's a bug beginning in PSE 6 where you can't change the frame delay rate from the default when you save an animated gif.
What's the default frame delay rate? Maybe it's just what I need.
Barbara B. wrote:
You might want to look into a free program like giffun from stone.com instead.
Yes that's maybe a better idea. It doesn't have to be free software. Can you recommend something good?
Thanks again! -
Can i open and edit animated GIF in Adobe Photoshop Touch?
Can i open and edit animated GIF in Adobe Photoshop Touch?
No, only regular static GIF images are supported. The desktop version of Photoshop does support this however.
-
I've read some threads about this problem, and while there is lively debate, there doesn't seem to be an answer. So I thought I would try it again with a new question.
A friend of mine (he has an old IMac) forwarded me an email with an animated gif. It was funny, and I wanted to forward it on. But I have never been able to do this. If I try to save the file, it saves as a MIME attachment, and I can't even open it. If I Download the file, the Get Info says it is a gif file, but if I open it in Preview, or attach it to a new email, it no longer animates and is just a still picture.
I tried forwarding the original email with the animated gif back to myself, and when it arrives, it no longer animates. My friend is no help. He's not really in to computing. He told me he just gets them from somebody else, and forwards it to me.
So why can I see the animated gif in my Mail, but can't save it, download it, cut & paste it, or forward it? I tried the Append Message suggestion from an old post, and that did not work either.
I noticed in some of the old posts some people seem to really hate gif's. I don't really care one way or the other. I just want to understand why my computer can receive them, but can't do anything else with them.Although Jaguar and Panther Mail renders HTML received, they do not support composing HTML which also includes when forwarding a message received that was composed in HTML including animated gifs.
Although you cannot compose complex HTML within the body of a message with Tiger Mail, RTF with Tiger Mail is HTML and supports forwarding a message received that was composed in HTML including animated gifs.
Reason for this: if you automatically render all HTML received (with any email client with OS X) and a spammer uses HTML for message composition and includes embedded images or objects that must be rendered from a remote server, if the Mail.app Junk Mail filter does not automatically mark the message as junk and you open the message, this can reveal that your email address is valid to the spammer causing more spam to be received.
Copied from Why HTML in E-Mail is a Bad Idea:
"Because it introduces accessibility problems. When you write in plain text, the receiving mail client renders the text in whatever font the reader chooses. When you format email with HTML, the sender controls the formatting. But this is a trap: You only think your message will render the same way to the viewer as it appears to the sender. In reality, the receiver can end up squinting because the font looks so tiny, or vice versa. HTML is not rendered the same way from one viewing client to the next - all guarantee of accessiblity goes out the window. This is especially problematic for visually impaired persons."
Because it can introduce security issues and trojan horses -- it's a gateway to danger as any Outlook user can tell you. HTML can include any number of scripts, dangerous links, controls, etc.
Powerbook G4 17" Mac OS X (10.4.5) -
Animated GIFs are ridiculously large - why?
Hi all,
I cannot figure out why the animated GIFs I am exporting are
so massive in file size. For example, I import a small 5-frame
650Byte GIF. I edit the size of the canvas to pad it to a square
(from 54x40 to 54x54, or something like that), then I save it with
the following settings:
Animated GIF
Exact Palette
0 Loss
4 Colours (5 including alpha channel)
No dither
And it comes out as 64.4KB. How can the file size increase by
100 times with barely any change? Even if I import it, change
nothing and save the file with the same settings as above, it's
still 64.4KB. Is Fireworks padding the file with unnecessary
information or something?
Thanks for any help,
John.> But the original image is an animated GIF and it's less
than 1KB big! So
> how
> does it increase in size 100 times when I save it
even if I don't
> change
> anything about the image before saving? There is no
PNG file but I can
> link
> you to the original 650 Byte Animated GIF:
I'm confused. What is this I am looking at. What have you
done to it to
make it increase in weight?
Murray --- ICQ 71997575
Adobe Community Expert
(If you *MUST* email me, don't LAUGH when you do so!)
==================
http://www.projectseven.com/go
- DW FAQs, Tutorials & Resources
http://www.dwfaq.com - DW FAQs,
Tutorials & Resources
==================
"Quircus" <[email protected]> wrote in
message
news:g6fohk$mip$[email protected]..
> But the original image is an animated GIF and it's less
than 1KB big! So
> how
> does it increase in size 100 times when I save it
even if I don't
> change
> anything about the image before saving? There is no
PNG file but I can
> link
> you to the original 650 Byte Animated GIF:
>
>
http://www.aotplaza.com/Prod.gif
>
> Is it something to do with my settings perhaps? Like
telling it to save
> extra
> information in the file?
> -
Gif not animating when on the Internet
Hopefully some one can help as I have tried everything i can
think of
I have create a animation using Flash 8 I have exported this
as a Animated gif to my computer. I can open the file and it
animates fine on my pc. When i upload to myspace it does not
animate.
I have tried downloading a random gif from the net and
uploading it to myspace and this animates (Just wanted to check
Myspace works with gifs)
The problem only appears to be with animations I have made.
I have tried making a really small animation (about 110kb)
then uploading it to myspace but again it doesnt animate (so its
not a size issue)
Flash - I have tried exporting movie as a gif and publishing
as a gif. The Animation has been made using motion tweed and not an
action script and I have tried every combination of gif option i
can think of i.e loop animation, loop twice, changing the frame
rate, size , colours, transarency etc
Please help as im so confused as to why this doesnt work.Perhaps Safari isn't quite what you require, too much work involved all the time making it easier to see
Take a look at my customized Firefox:
it always opens to the same size window (or full screen if you like)
it always zooms all web pages 160% (or whateve you like)
it always has large type on the menu bar area. (to whatever you like)
it's very highly customizable, (or use the plain default settings)
has more add-ons than anyone (a real plus when you need it)
has more themes and personas than anyone (make it YOUR browser)
Easier surfing option for hard of seeing users
Safari is about the absolute worst browser since Internet Explorer, it's because Apple has already got your money so there isn't any incentive for them to make a better browser. -
First off, I'd like to say I've been making gif animations in Photoshop Elements since 2.0, and I've had no problem with 6.0 either--- when I was on Windows.
For whatever reason, when I open a .gif animated image, I get an error message that says:
"This is an animated GIF. You can only view one frame. Saving over this file will result in a loss of information."
EVERY single time I open a gif, and as soon as I hit okay, it opens to the single frame locked. As I said, I've never had this problem with Photoshop Elements 6.0 in Windows... Any suggestions/ help please?Your post is unclear on some important points. When you say "when I was in Windows" does that mean you are talking about a mac now? What version of PSE are you talking about?
If you mean PSE 8 for mac, you would be better off downloading a program like the free Giffun from stone.com and using that for animated gifs. For one thing the frame rate has been broken in the mac version of PSE in both 6 and 8. -
.gif preview slow in Save for Web
I am having an issue in Save for Web where the .gif animation preview works very slow and choppy. I am an advertising designer and many times I need to work on animated .gif banners. I am working with Photoshop CS6. When I play the animation in the frame timeline the animation speed works as intended, a little choppy but the timing isn't too bad. However when I go into the Save for Web screen and play the animation it always appears a lot slower and looks choppy. Anything se to 0.0 or No Delay runs as if its set to .1 seconds. Now if I export the file and open it in Chrome the animation speed seems to go back to normal. This wasn't always the case, I tested this 2 or 3 months ago and the animation speed in the export was also slow and choppy but it must have been fixed in one of the updates since then.
My issue is I don't want to have to preview everything in Chrome after I export it, and then possibly have to go back and tweak it then save again, preview again etc. I have never encountered this issue in previous versions on Photoshop or other machines. Ususally my experience has been the opposite, the frame timeline has always been slower, but previewing in Save fro Web has shown a pretty accurate preview.
I also have a HP laptop running Windows 7, photoshop CS6 and I don't encounter this issue at all. It seems that everyones default answer on all of the forums is "different browsers handle .gif animation speeds differently, etc.." but int he past I have saved a .gif on my mac and it was slow and choppy in the Chrome, then I saved the same file on my PC transfered it back to the mac and previewed in Chrome and the animation played quickly and smoothly.
I can't see it being a hardware issue because the machine I am using is farily new. iMac Late 2013/2013, 3.4 Ghz Intel Core i7, 16GB RAM, NVIDIA GeForce GTX 675MX 1024 MB, running OSX 10.8.4 Mountain Lion.
Could it possibly be a setting or preference that needs to be changed? As I stated above it seems that now when I export the animation works fine in the browser the preview is just slow, but I have read that many people are having this issue so hopedully someone will have a solution.I don't use a Mac but the first the first thing I do when I have performance problems with Photoshop on my PC is to do some house cleaning. I reset my Photoshop Preference to a saved copy I made when Photoshop was working well. I Also clean my disk up clearing caches and temp files so the plenty of scratch space. I close all applications and look at the machine CPU utilization. Then try Photoshop to see if it is back to its normal performance.
-
This works on WinXP but not Linux. Why? It takes the first frame of an animated gif and writes a thumbnail.
GifDecoder d = new GifDecoder();
try {
fis = new FileInputStream(file);
bis = new BufferedInputStream(fis);
log.debug("reading gif");
d.read(bis);
log.debug("reading framecount");
int n = d.getFrameCount();
log.debug("read framecount" + n);
for (int i = 0; i < 1; i++) {
BufferedImage frame = d.getFrame(i); // frame i
int t = d.getDelay(i); // display duration of frame in milliseconds
log.debug("resizing frame");
File gifoutputfile = new File("gif" + i + outputthumbFilename);
BufferedImage bdest = new BufferedImage(60, 60, BufferedImage.TYPE_INT_RGB);
Graphics2D g = bdest.createGraphics();
AffineTransform at = AffineTransform.getScaleInstance((double) 60 / frame.getWidth(), (double) 60 / frame.getHeight());
g.drawRenderedImage(frame, at);
ImageIO.setUseCache(false);
ImageIO.write(bdest, "GIF", new File(outputthumbFilename));
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
import java.awt.AlphaComposite;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.awt.image.BufferedImage;
import java.awt.image.DataBufferInt;
import java.io.BufferedInputStream;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.util.ArrayList;
* Class GifDecoder - Decodes a GIF file into one or more frames. <br>
* <pre>
* Example:
* GifDecoder d = new GifDecoder();
* d.read("sample.gif");
* int n = d.getFrameCount();
* for (int i = 0; i < n; i++) {
* BufferedImage frame = d.getFrame(i); // frame i
* int t = d.getDelay(i); // display duration of frame in milliseconds
* // do something with frame
* </pre>
* No copyright asserted on the source code of this class. May be used for any
* purpose, however, refer to the Unisys LZW patent for any additional
* restrictions. Please forward any corrections to [email protected].
* @author Kevin Weiner, FM Software; LZW decoder adapted from John Cristy's
* ImageMagick.
* @version 1.03 November 2003
public class GifDecoder {
* File read status: No errors.
public static final int STATUS_OK = 0;
* File read status: Error decoding file (may be partially decoded)
public static final int STATUS_FORMAT_ERROR = 1;
* File read status: Unable to open source.
public static final int STATUS_OPEN_ERROR = 2;
protected BufferedInputStream in;
protected int status;
protected int width; // full image width
protected int height; // full image height
protected boolean gctFlag; // global color table used
protected int gctSize; // size of global color table
protected int loopCount = 1; // iterations; 0 = repeat forever
protected int[] gct; // global color table
protected int[] lct; // local color table
protected int[] act; // active color table
protected int bgIndex; // background color index
protected int bgColor; // background color
protected int lastBgColor; // previous bg color
protected int pixelAspect; // pixel aspect ratio
protected boolean lctFlag; // local color table flag
protected boolean interlace; // interlace flag
protected int lctSize; // local color table size
protected int ix, iy, iw, ih; // current image rectangle
protected Rectangle lastRect; // last image rect
protected BufferedImage image; // current frame
protected BufferedImage lastImage; // previous frame
protected byte[] block = new byte[256]; // current data block
protected int blockSize = 0; // block size
// last graphic control extension info
protected int dispose = 0;
// 0=no action; 1=leave in place; 2=restore to bg; 3=restore to prev
protected int lastDispose = 0;
protected boolean transparency = false; // use transparent color
protected int delay = 0; // delay in milliseconds
protected int transIndex; // transparent color index
protected static final int MaxStackSize = 4096;
// max decoder pixel stack size
// LZW decoder working arrays
protected short[] prefix;
protected byte[] suffix;
protected byte[] pixelStack;
protected byte[] pixels;
protected ArrayList frames; // frames read from current file
protected int frameCount;
static class GifFrame {
public GifFrame(BufferedImage im, int del) {
image = im;
delay = del;
public BufferedImage image;
public int delay;
* Gets display duration for specified frame.
* @param n
* int index of frame
* @return delay in milliseconds
public int getDelay(int n) {
delay = -1;
if ((n >= 0) && (n < frameCount)) {
delay = ((GifFrame) frames.get(n)).delay;
return delay;
* Gets the number of frames read from file.
* @return frame count
public int getFrameCount() {
return frameCount;
* Gets the first (or only) image read.
* @return BufferedImage containing first frame, or null if none.
public BufferedImage getImage() {
return getFrame(0);
* Gets the "Netscape" iteration count, if any. A count of 0 means repeat
* indefinitiely.
* @return iteration count if one was specified, else 1.
public int getLoopCount() {
return loopCount;
* Creates new frame image from current data (and previous frames as specified
* by their disposition codes).
protected void setPixels() {
// expose destination image's pixels as int array
int[] dest = ((DataBufferInt) image.getRaster().getDataBuffer()).getData();
// fill in starting image contents based on last image's dispose code
if (lastDispose > 0) {
if (lastDispose == 3) {
// use image before last
int n = frameCount - 2;
if (n > 0) {
lastImage = getFrame(n - 1);
} else {
lastImage = null;
if (lastImage != null) {
int[] prev = ((DataBufferInt) lastImage.getRaster().getDataBuffer()).getData();
System.arraycopy(prev, 0, dest, 0, width * height);
// copy pixels
if (lastDispose == 2) {
// fill last image rect area with background color
Graphics2D g = image.createGraphics();
Color c = null;
if (transparency) {
c = new Color(0, 0, 0, 0); // assume background is transparent
} else {
c = new Color(lastBgColor); // use given background color
g.setColor(c);
g.setComposite(AlphaComposite.Src); // replace area
g.fill(lastRect);
g.dispose();
// copy each source line to the appropriate place in the destination
int pass = 1;
int inc = 8;
int iline = 0;
for (int i = 0; i < ih; i++) {
int line = i;
if (interlace) {
if (iline >= ih) {
pass++;
switch (pass) {
case 2:
iline = 4;
break;
case 3:
iline = 2;
inc = 4;
break;
case 4:
iline = 1;
inc = 2;
line = iline;
iline += inc;
line += iy;
if (line < height) {
int k = line * width;
int dx = k + ix; // start of line in dest
int dlim = dx + iw; // end of dest line
if ((k + width) < dlim) {
dlim = k + width; // past dest edge
int sx = i * iw; // start of line in source
while (dx < dlim) {
// map color and insert in destination
int index = ((int) pixels[sx++]) & 0xff;
int c = act[index];
if (c != 0) {
dest[dx] = c;
dx++;
* Gets the image contents of frame n.
* @return BufferedImage representation of frame, or null if n is invalid.
public BufferedImage getFrame(int n) {
BufferedImage im = null;
if ((n >= 0) && (n < frameCount)) {
im = ((GifFrame) frames.get(n)).image;
return im;
* Gets image size.
* @return GIF image dimensions
public Dimension getFrameSize() {
return new Dimension(width, height);
* Reads GIF image from stream
* @param BufferedInputStream
* containing GIF file.
* @return read status code (0 = no errors)
public int read(BufferedInputStream is) {
init();
if (is != null) {
in = is;
readHeader();
if (!err()) {
readContents();
if (frameCount < 0) {
status = STATUS_FORMAT_ERROR;
} else {
status = STATUS_OPEN_ERROR;
try {
is.close();
} catch (IOException e) {
return status;
* Reads GIF image from stream
* @param InputStream
* containing GIF file.
* @return read status code (0 = no errors)
public int read(InputStream is) {
init();
if (is != null) {
if (!(is instanceof BufferedInputStream))
is = new BufferedInputStream(is);
in = (BufferedInputStream) is;
readHeader();
if (!err()) {
readContents();
if (frameCount < 0) {
status = STATUS_FORMAT_ERROR;
} else {
status = STATUS_OPEN_ERROR;
try {
is.close();
} catch (IOException e) {
return status;
* Reads GIF file from specified file/URL source (URL assumed if name contains
* ":/" or "file:")
* @param name
* String containing source
* @return read status code (0 = no errors)
public int read(String name) {
status = STATUS_OK;
try {
name = name.trim().toLowerCase();
if ((name.indexOf("file:") >= 0) || (name.indexOf(":/") > 0)) {
URL url = new URL(name);
in = new BufferedInputStream(url.openStream());
} else {
in = new BufferedInputStream(new FileInputStream(name));
status = read(in);
} catch (IOException e) {
status = STATUS_OPEN_ERROR;
return status;
* Decodes LZW image data into pixel array. Adapted from John Cristy's
* ImageMagick.
protected void decodeImageData() {
int NullCode = -1;
int npix = iw * ih;
int available, clear, code_mask, code_size, end_of_information, in_code, old_code, bits, code, count, i, datum, data_size, first, top, bi, pi;
if ((pixels == null) || (pixels.length < npix)) {
pixels = new byte[npix]; // allocate new pixel array
if (prefix == null)
prefix = new short[MaxStackSize];
if (suffix == null)
suffix = new byte[MaxStackSize];
if (pixelStack == null)
pixelStack = new byte[MaxStackSize + 1];
// Initialize GIF data stream decoder.
data_size = read();
clear = 1 << data_size;
end_of_information = clear + 1;
available = clear + 2;
old_code = NullCode;
code_size = data_size + 1;
code_mask = (1 << code_size) - 1;
for (code = 0; code < clear; code++) {
prefix[code] = 0;
suffix[code] = (byte) code;
// Decode GIF pixel stream.
datum = bits = count = first = top = pi = bi = 0;
for (i = 0; i < npix;) {
if (top == 0) {
if (bits < code_size) {
// Load bytes until there are enough bits for a code.
if (count == 0) {
// Read a new data block.
count = readBlock();
if (count <= 0)
break;
bi = 0;
datum += (((int) block[bi]) & 0xff) << bits;
bits += 8;
bi++;
count--;
continue;
// Get the next code.
code = datum & code_mask;
datum >>= code_size;
bits -= code_size;
// Interpret the code
if ((code > available) || (code == end_of_information))
break;
if (code == clear) {
// Reset decoder.
code_size = data_size + 1;
code_mask = (1 << code_size) - 1;
available = clear + 2;
old_code = NullCode;
continue;
if (old_code == NullCode) {
pixelStack[top++] = suffix[code];
old_code = code;
first = code;
continue;
in_code = code;
if (code == available) {
pixelStack[top++] = (byte) first;
code = old_code;
while (code > clear) {
pixelStack[top++] = suffix[code];
code = prefix[code];
first = ((int) suffix[code]) & 0xff;
// Add a new string to the string table,
if (available >= MaxStackSize)
break;
pixelStack[top++] = (byte) first;
prefix[available] = (short) old_code;
suffix[available] = (byte) first;
available++;
if (((available & code_mask) == 0) && (available < MaxStackSize)) {
code_size++;
code_mask += available;
old_code = in_code;
// Pop a pixel off the pixel stack.
top--;
pixels[pi++] = pixelStack[top];
i++;
for (i = pi; i < npix; i++) {
pixels[i] = 0; // clear missing pixels
* Returns true if an error was encountered during reading/decoding
protected boolean err() {
return status != STATUS_OK;
* Initializes or re-initializes reader
protected void init() {
status = STATUS_OK;
frameCount = 0;
frames = new ArrayList();
gct = null;
lct = null;
* Reads a single byte from the input stream.
protected int read() {
int curByte = 0;
try {
curByte = in.read();
} catch (IOException e) {
status = STATUS_FORMAT_ERROR;
return curByte;
* Reads next variable length block from input.
* @return number of bytes stored in "buffer"
protected int readBlock() {
blockSize = read();
int n = 0;
if (blockSize > 0) {
try {
int count = 0;
while (n < blockSize) {
count = in.read(block, n, blockSize - n);
if (count == -1)
break;
n += count;
} catch (IOException e) {
if (n < blockSize) {
status = STATUS_FORMAT_ERROR;
return n;
* Reads color table as 256 RGB integer values
* @param ncolors
* int number of colors to read
* @return int array containing 256 colors (packed ARGB with full alpha)
protected int[] readColorTable(int ncolors) {
int nbytes = 3 * ncolors;
int[] tab = null;
byte[] c = new byte[nbytes];
int n = 0;
try {
n = in.read(c);
} catch (IOException e) {
if (n < nbytes) {
status = STATUS_FORMAT_ERROR;
} else {
tab = new int[256]; // max size to avoid bounds checks
int i = 0;
int j = 0;
while (i < ncolors) {
int r = ((int) c[j++]) & 0xff;
int g = ((int) c[j++]) & 0xff;
int b = ((int) c[j++]) & 0xff;
tab[i++] = 0xff000000 | (r << 16) | (g << 8) | b;
return tab;
* Main file parser. Reads GIF content blocks.
protected void readContents() {
// read GIF file content blocks
boolean done = false;
while (!(done || err())) {
int code = read();
switch (code) {
case 0x2C: // image separator
readImage();
break;
case 0x21: // extension
code = read();
switch (code) {
case 0xf9: // graphics control extension
readGraphicControlExt();
break;
case 0xff: // application extension
readBlock();
String app = "";
for (int i = 0; i < 11; i++) {
app += (char) block;
if (app.equals("NETSCAPE2.0")) {
readNetscapeExt();
} else
skip(); // don't care
break;
default: // uninteresting extension
skip();
break;
case 0x3b: // terminator
done = true;
break;
case 0x00: // bad byte, but keep going and see what happens
break;
default:
status = STATUS_FORMAT_ERROR;
* Reads Graphics Control Extension values
protected void readGraphicControlExt() {
read(); // block size
int packed = read(); // packed fields
dispose = (packed & 0x1c) >> 2; // disposal method
if (dispose == 0) {
dispose = 1; // elect to keep old image if discretionary
transparency = (packed & 1) != 0;
delay = readShort() * 10; // delay in milliseconds
transIndex = read(); // transparent color index
read(); // block terminator
* Reads GIF file header information.
protected void readHeader() {
String id = "";
for (int i = 0; i < 6; i++) {
id += (char) read();
if (!id.startsWith("GIF")) {
status = STATUS_FORMAT_ERROR;
return;
readLSD();
if (gctFlag && !err()) {
gct = readColorTable(gctSize);
bgColor = gct[bgIndex];
* Reads next frame image
protected void readImage() {
ix = readShort(); // (sub)image position & size
iy = readShort();
iw = readShort();
ih = readShort();
int packed = read();
lctFlag = (packed & 0x80) != 0; // 1 - local color table flag
interlace = (packed & 0x40) != 0; // 2 - interlace flag
// 3 - sort flag
// 4-5 - reserved
lctSize = 2 << (packed & 7); // 6-8 - local color table size
if (lctFlag) {
lct = readColorTable(lctSize); // read table
act = lct; // make local table active
} else {
act = gct; // make global table active
if (bgIndex == transIndex)
bgColor = 0;
int save = 0;
if (transparency) {
save = act[transIndex];
act[transIndex] = 0; // set transparent color if specified
if (act == null) {
status = STATUS_FORMAT_ERROR; // no color table defined
if (err())
return;
decodeImageData(); // decode pixel data
skip();
if (err())
return;
frameCount++;
// create new image to receive frame data
image = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB_PRE);
setPixels(); // transfer pixel data to image
frames.add(new GifFrame(image, delay)); // add image to frame list
if (transparency) {
act[transIndex] = save;
resetFrame();
* Reads Logical Screen Descriptor
protected void readLSD() {
// logical screen size
width = readShort();
height = readShort();
// packed fields
int packed = read();
gctFlag = (packed & 0x80) != 0; // 1 : global color table flag
// 2-4 : color resolution
// 5 : gct sort flag
gctSize = 2 << (packed & 7); // 6-8 : gct size
bgIndex = read(); // background color index
pixelAspect = read(); // pixel aspect ratio
* Reads Netscape extenstion to obtain iteration count
protected void readNetscapeExt() {
do {
readBlock();
if (block[0] == 1) {
// loop count sub-block
int b1 = ((int) block[1]) & 0xff;
int b2 = ((int) block[2]) & 0xff;
loopCount = (b2 << 8) | b1;
} while ((blockSize > 0) && !err());
* Reads next 16-bit value, LSB first
protected int readShort() {
// read 16-bit value, LSB first
return read() | (read() << 8);
* Resets frame state for reading next image.
protected void resetFrame() {
lastDispose = dispose;
lastRect = new Rectangle(ix, iy, iw, ih);
lastImage = image;
lastBgColor = bgColor;
int dispose = 0;
boolean transparency = false;
int delay = 0;
lct = null;
* Skips variable length blocks up to and including next zero length block.
protected void skip() {
do {
readBlock();
} while ((blockSize > 0) && !err());
Niklas wrote:
This works on WinXP but not Linux. Why? Please don't just post reams of code without providing more context and information.
How is it failing on Linux? Wrong results? What are they? Error messages? What do they say? You need to give us some place to start looking. -
Hi all, I am trying to save animated gifs from PS, I can get it to work fine when the layers are just flat layers, but I need to create the animated gif when I have layer folders... Ie layer 1 will have a graphic and some text, layer 2 different graphic and different text. But I have to create lots of banners each with a slight change on the text. So I want to keep the text editable so its quick to just chnage the text and then save another animated gif. But when I try and create frames from layers its bringing all the bits from the layer as different frames ie the graphic is one frame then the text is one frame etc. Is it possible to create the animated gif while still having layer folders or does it just work if they are flat layers?
Hi thanks for the reply, i didnt think it was really working, but now I have had a play, it does work and its pretty easy to change the text, it does pop open another photoshop file to edit the text, but it works ok.
Thanks
Maybe you are looking for
-
Help needed in installing Elements 12 onto Mac
I have 2 Macbooks, one older one and one brand new retina with no cd drive. Bought Elements on CD, and installed it on my older device all fine. Used Air Drop to move/copy it over to new Macbook and when I try to launch it, there is a Congig errer :
-
Hello fine folks, Uh oh. My computer just went through a bluescreen hissy fit, then came back okay (without a restart). But when it came back, the menu items on the right (clock, AirPort, BlueTooth, Time Machine) disappeared. I went into the clock fu
-
Datapump sqlfile option to extract only PK
Is there any way to generate a sqlfile using Datapump that contains only Primary Key (I don't want the Check and Foreign Key constraints) There are lot of Chk and Fk, so editing is not an option I am able to generate the FK script by using " include=
-
What is a website that can assist with getting student loans under control?
I've seen in previous post people refer others to a website that will assist you in getting your loans under control. I have multiple loans with different loan companies and I want to speak with someone to guide me through getting on the right track?
-
Generating Excel using Client_ole2
Hi I am using the following codde to generate excel file from form but when i click on button nothing happens and i can not exit the form also... please help me... thanks..... DECLARE A BOOLEAN; args client_ole2.list_type; application