I have a program that perform two functions: Upload image, Export image.
after uploading an image it will shown in a jLabel,
my question : is there any way to save this image and export it to a new folder on desktop or any place the user choose?
for example, if I uploaded an image and its displayed on jLabel, when I press the Export button the program should open a dialog window asks me to choose a name for a folder and save the image in it.
Thanks in advance!
It sure is possible!
Take a look a JFileChooser, ImageIcon, and ImageIO and specifically search around for tutorials on using ImageIO
Related
I am making a program that stores information in a file with a custom extension. I was wondering If it is possible to assign it an icon within the program so that the icon will show the file with the icon anywhere on the computer? For example how all Microsoft word documents have the word icon.
I am trying to display images on a JSP page.
Two hyperlinks are used to display image.
One of them is as follows:
Image
When one of the links is clicked, the corresponding image is displayed.
In the above case, MyPic.jpg is saved in web\img\MyPic.jpg(Inside the project folder).
In the other case, I saved the image in local disk.
E:\img\MyPic.jpg
and I tried the following code:
Outside image
and
Outside web
But this link is not working and I can't access the image.
I'm using PdfViewer.jar library for opening the PDF files in my Application,
The problem is, i want to show my pdf in full screen.
This one you can try it which works properly.
https://github.com/bitfield66/PdfViewerAndroid_Offline
I would like to get a GIF image from the network, but I found that if I download the whole GIF image, it would cause a lot of network traffic.
Can I get only the first frame of a GIF image without downloading all the other frames?
9 years 6 months later, the perfect time to help out.
This can be accomplished using ImageMagick using the command:
magick mogrify -format png *.gif[0]
using a console in the directory of the folder containing the file(s).
Well, I haven't found ready-to-use solution, but you can do this way (it'll lead to some "low-level" tricks):
Following wiki about GIFs, animated gif files can be splitted into frames, and end of frame can be easily recognized. So, you'll need to read GIF header, screen information, information about animation into buffer, download first frame and append information like GIF is ended ("3B" following wiki article). And, if you copy this data into separate bufer, you'll be able to continue whole file downloading without re-downloading first frame.
Also you can edit header information to format first frame into static gif.
This may seem like a stupid question, but I need to know where the images used for JFileChooser are located. By images, I mean the image of a file or folder next to the file name.
Here is a picture if you don't understand.
http://i.imgur.com/Ro9bc.png
Thank you.
FileSystemView.getSystemIcon(File)
See File Browser GUI for example code.