I was searching in the past days for a possibility to insert more options into the JFileChooser, beside the "normal" name of the file and extension filter.
Example:
I have to save EEPROM datafields to the PC in certain text filetypes. The EEPROM contains hex values. I want to be able to choose how I save these hex values: in hex, as they are, or directly in ASCII.
I want to get something similar like in Word >=2010 when saving a file as *pdf. There are extra options you can set.
Here is a picture I made: What I want
Thank You!
It seems to me that you can put that information in the filter, however, remember that the JFileChooser is a component that can be placed in your own JDialog.
So you can create a JDialog with, say a BorderLayout, with a JFileChooser at the "center", and a JPanel at the "south". You can add whatever controls you want on the JPanel.
You can either keep the control buttons (Open, Save, Cancel) on the JFileChooser, or hide them by using:
fileChooser.setControlButtonsAreShown(false);
in which case, you would need to provide your own buttons on the JPanel.
An issue with this technique, is the misalignment of the components in the JPanel with those of the JFileChooser.
Related
I am trying to print particular images(which include some drawn symbols) on textarea when I type a particular Alphabet on my keyboard. How?
You can't use a JTextArea since it can only display text.
You can use a JTextPane as it supports the display of Icons.
Check out: Auto Replace Smiles. It shows how to replace the two text characters :) with an Icon.
You are asking me to do your homework, but still. I will give you only the pseudo code, you will have to write it on your own.
Write a JFrame.
Add a JLabel to the JFrame (using a label is easier than using a text pane, and it is impossible to use a text area).
Add a Key Listener to either the JFrame or the JLabel depending on your application.
In the handler write code to add a ImageIcon to the JLabel when the key you want is pressed or whatever.
Cheers!
I am a beginner and I am trying to make a text editor and I want to create a pop up window for text format when I press a menu button where I can put all things like font face, font size , font style etc. Can you tell me how I can make this new window? Thanks for your patience!
For example Notepad:
I think what you're after is a dialog of some kind.
Take a look at How to Make Dialogs for more details.
What I would do is design the basic UI onto a JPanel. I would then add this JPanel to an instance of a JDialog (possibly even using a JOptionPane) and show this dialog, making sure to make it modal, so you can easily retrieve the values set by the user.
This means that you can decide how best to show the user interface or even show it in a number of different ways as it's not constrained to a single top level container
You can simply create a brand spanking new JFrame and it will still be counted as the same application.
Tip: Use Eclipse Window Builder
Think about the classic installation process, where you have a "next" button and when you click it the content of the window changes. To represent this situation I thought of two possible solutions:
-when "next" is clicked destroy the current JFrame and create a new JFrame, maybe passing to his constructor useful information (e.g. actual window size, content inserted by the user in the current frame, ...)
-when "next" is clicked remove all the components from the current JFrame and add new components as needed
The first solution looks way better about OOprogramming, because I can keep separate classes for different frames and I can avoid huge methods that empty the frame and repopulate it. However the first solution sounds a bit "dirty" and I should pass lots of parameters to the new frame. To represent this situation I would choose the second solution.
Now think about a menu with an "option" component: in this situation I would create a new JFrame when "option" is clicked, so that I can populate it with option items. Is this a correct solution? Is there a way I can always know which one is the best solution? Are there any solutions I didn't think about?
Destroying the main JFrame would be silly -- not to mention jarring for the user. Just use a single JFrame and change its contents.
To implement an installer wizard, use a single JFrame containing one large JPanel on top and a smaller one containing the "Next", "Back", "Cancel" buttons along the bottom. When the Next or Back buttons are pressed, you replace the large JPanel. You can have many different JPanel subclasses, one for each "page" of the wizard.
There's a LayoutManager called CardLayout which is ideal for implementing this scenario -- it manages a "stack" of components, and only shows one of those components at a time. Use a BorderLayout in the JFrame. Into the center position put a JPanel with a CardLayout. Then add the individual pages of the wizard to that JPanel, so the CardLayout can manage them.
The CardLayout is well suited for this. You just swapout the JPanel contents when the "Next" button is pressed.
I'm making a Unicode translator in Java. I did all hard parts, but now I want to add a resizable, relocatable image to the textpane. The user must be able to resize image with its corners and drag & drop the image within the textpane where he likes. (like Microsoft Word or Photoshop)
Something like this:
I tried the Styled Document properties. But I couldn't find way except inserting only an ImageIcon.
May be a better choice would be not to use textPane.
If you have an custom editable label, that can be edited by double clicking on it to show a text box to edit the contents, and change the text of the label when enter key is pressed.
Also give a shot of JDesktoppane, JLayeredPane, and check what components can be added to it.
try this
http://mgeisler.net/downloads/browser/src/ImageBox.java.html
try loading the image inside a JLabel component in JFC Swing.
Otherwise try some other non editable components in the same technology with resizable property.
try this http://sourceforge.net/projects/ird/
the iRD is a component for Resize and move(drag&drop) compoennts on runtime in java.
The title is a bit confusing, but I will be using Java and Jframe. Basically, I want to be able to click anywhere on the form and have a "text area/box" show up (maybe use a JTextField or JTextArea ?). I want the user to be able to edit, delete and move this string around as well.
I am thinking I need an actionlistener to listen for clicks on the form. Each click will call for a new text"box" to be created. I am not sure how to make this "box" editable, deleteable, or moveable by the user though.
I need a way to store the string and co-ordinate data too. Would it be a good idea to simply extend the JTextField or JTextArea to add co-ordinate information to them? I see that swing is event based, so I need some kind of trigger to "save" the text (was thinking the enter key, but I realize I'd like the user to be able to enter multi-line strings).
Any thoughts would be appreciated. I am familiar with Java but only have a bit of experience with the UI portion.
Instead of an ActionListener you will need a MouseListener to track clicks.
Sounds like you need an undecorated JInternalFrame with a text box in it on JDesktopPane. However, I don't think you can create an undecorated JInternalFrame, maybe start with a normal JInternalFrame with a TextBox in it and create new frames on mouse clicks on the Desktop Pane. Then see if you can make the JInternalFrame more like a Window.
Another route is a custom component that does everything you need. This is possible, just a lot more custom code.