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Java Forum / General / September 2007saving an image to file (with other contents...)
Hi! Im having trouble finding a resource that discusses this topic, so I figured I would make a post here. I have a little program where the user can enter text and select graphics to show within the program. I offer the ability to save their creations... BUT since I store the graphics that they have selected as the path to the graphic... if they want to share their creations with their friends the graphics do not show up because their friends dont have the graphics! SO my question is, is there a way to embed the graphics into the save file? How can I do this? Then how would I grab the file from the save file when their friends open the file? Is there an example somewhere online? Thanks! > Hi! > [quoted text clipped - 14 lines] > > Thanks! It is really not clear what you are asking as can be seen from the lack of response to your post. Do you want to save an image to a file? | | | Yes ------------------ No | | | | ImageIO | | | Is it really a just drawing and not an image? | | | Yes --------------------------------- No | | | | Then you are going to have to Then what the heck create an image because you is it? can't just save your drawing. (See the answer above)  SignatureKnute Johnson email s/nospam/knute/ ok - to clarify... What I would like to save is a set of data. so for instance, a text field, and an image. I want to combine these items into a single save file. The text (entirely seperate from the image) should be saved to file, along with the image. When the user opens the file that was saved (a single file containing the text, and the image) it will open the file and insert the text into a text box, and the image (if specified) into the image area... On Sep 16, 7:37 pm, Knute Johnson <nos...@rabbitbrush.frazmtn.com> wrote: > > Hi! > [quoted text clipped - 46 lines] > > - Show quoted text - > ok - to clarify... > [quoted text clipped - 6 lines] > the text, and the image) it will open the file and insert the text > into a text box, and the image (if specified) into the image area... OK that makes a lot more sense. Many objects can be serialized and saved to disk. Although the Image class can't be serialized, the BufferedImage can have its data saved in an array and an array can be serialized. A JTextField keeps its data in a String which can also be serialized. So you could create a class that held your String and your array and write that to disk. If they don't have to be in the same exact file your could easily write the image to one file and the string data to the other. The only drawback is two files but the advantages are obvious. SignatureKnute Johnson email s/nospam/knute/ On Sep 16, 9:10 pm, Knute Johnson <nos...@rabbitbrush.frazmtn.com> wrote: > > ok - to clarify... > [quoted text clipped - 21 lines] > Knute Johnson > email s/nospam/knute/ thanks! >ok - to clarify... Top-posting is not a good way to clarify things. I for one, find it most confusing. ... >When the user opens the file that was saved (a single file containing >the text, and the image) it will open the file ... There are a numer of aspects to this problem, and the file format itself has been covered by a number of people, so I will limit my reply to invoking the app. to open the file. Web start provides mechanisms to associate a filetype with an application. I show the technique in this example that links the '.zzz' file type with the filetest app. <http://www.physci.org/jws/#fs> SignatureAndrew Thompson http://www.athompson.info/andrew/ >SO my question is, is there a way to embed the graphics into the save >file? How can I do this? Then how would I grab the file from the >save file when their friends open the file? Is there an example >somewhere online? With HTML you never embed the file. You save the image an a separate file, and embed a link to it in the HTML. see http://mindprod.com/jgloss/pngencoder.html for how you create image files. If you create your own file format, you can embed images. You might do it with a length followed by the binary image, identical to what it would be as a standalone file. You might then compress the whole thing, or compress the embedded images. SignatureRoedy Green Canadian Mind Products The Java Glossary http://mindprod.com thanks for the feedback, but I am working with an application. The HTML does not apply... On Sep 16, 10:50 pm, Roedy Green <see_webs...@mindprod.com.invalid> wrote: > >SO my question is, is there a way to embed the graphics into the save > >file? How can I do this? Then how would I grab the file from the [quoted text clipped - 13 lines] > Roedy Green Canadian Mind Products > The Java Glossaryhttp://mindprod.com Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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