OK a complete revision:
I have a JFrame with a tab that has buttons/textfields etc. inside.Buttons have events that does simple things like reading from an SQL server and filling the textfields from the received query.Pretty simple eh? And now ,I need to add more tabs to this Frame and have to have multiple tabs.In each tab I "must" have the same components/events. So what I am asking is this,how can I clone all the components/events/keylisteners etc. (whatever i have inside that tab) to another tab? I could always add the same components with different names from the code,but I need to find a way to clone the whole tab..
Why not keep the components you already have without duplicating them, and figure out a way to store all the data to be displayed in some kind of model. You could create only some buttons to simulate the tabs, and when clicking on one you display the data associated with it.
Related
In Lazarus, there are 2 different kinds of tab elements (cf. Free Pascal docs):
TPageControl
TPageControl is a multi-page component that provides a container to hold a variety of controls per page.
TTabControl
It is a tabbed container component which looks identical to a TPageControl. However, there is a fundamental difference because the control always shows the same page whichever tab is selected. In fact, it containts only a single page. The idea behind this concept is illustrated best by an editor or viewer for text files: When the TabControl contains a TMemo then the individual tabs refer to the files loaded into the memo; whenever the active tab changes another file is loaded into the (same) memo.
In this sense, JavaFX TabPanes are quite similar to TPageControls, but I rather want to replicate a TTabControl. I know I could in fact programmatically create a new Tab(), but I want to visually design it in SceneBuilder.
Is there maybe a way to load a separate .fxml file into a new Tab() element which is then added to the TabPane? (And how could I then access a tab's children?)
I chose the easiest approach: Implementing a head-less TabPane to detect when the user switches between tabs. The elements that appear to the user as the “tab content” are actually placed outside the TabPane, and their content is dynamically changed whenever the tab is switched.
Sample layout
I am attempting to build a GUI with JPanels which can display multiple projects, with multiple tasks displayed inside each table (see image). My team is using a database to hold all the project/task data. The project panels are all within a scroll frame, and each project panel can scroll as well.
I am trying to learn how to display the same number of projects in my frame that are in my database. There are not fixed numbers of projects or tasks, so I want to add a panel when it corresponds to an entry in the database. How can I only create the number of panels necessary, making the page dynamic?
Any information that can point out what I should be studying to accomplish this would be appreciated.
Based on what you're trying to do, the feat itself would not require an incredibly complex solution.
Ideally, you should create a structure or an object which contains all relevant information for your specific JPanel. From this, the objects can be stored within an ArrayList.
Looping for the number of objects present within the ArrayList, you can then simply create a new instance of your required JPanel using the information from within said object.
Hope this helps!
I'm working on creating a basic user interface and I wanted to try and create a portion that is in a scrollTaskPane and is capable of holding multiple entries. As I'm going about creating it I can obviously test it with a simple amount of entries but I'm confused how I can go about later allowing for it to take input to create entries in the scrollTaskPane of maybe 1 entry one time, and then later needing to allow for input of 20 entries. I only know how to use absolute positioning and am trying to figure out the best way to go about it. I also need to later be able to select each entry.
For the entries that will eventually be called and displayed in my interface, I'm planning to store them in a simple text file and use a semicolon as a delimiter between the task "Type" "Name" "Description"(which will be accessible through a button) and "Due Date". Or I may try to learn to use a database for the information. But I haven't decided yet and don't know anything about connecting a database with a java program.
This is the current look (the scrollTaskPane in the middle). And my goal is to put in entries that are each rectangle boxes going across the scrollTaskPane with a checkbox on the end of them. Should I use some sort of grid layout? Or something else? I'm a beginner at user interfaces, so any help is appreciated!
You can make a custom layout, and then keep adding those layout. So extend a layout class, add TextField and a check box in the layout. Initialize the layout with your values, add then add to the ScrollTaskPane.
I am trying to make a "Oregon Trail" like game with JAVA for my Computer Science class. It's all going well so far, but I would like some suggestions on ways of doing the following:
The words at the bottom "Health", "Stats", etc are buttons. I was wondering what the best way of making those buttons present information would be. Is there a way I could show them in that information in one of the bottom squares, and when a different button is clicked change the info to that one? Or would it be best to have popup frames to display the information?
IMHO, I'd go with display the content or info of the button in the panels above.
It keeps the information together in a single place and generally makes it easier to manage, no disappearing windows behind other windows for example.
You have any number of options depending on the information you want to display. You could simply use a none editable JTextArea if the information is just text, or a JList if you want to list items if the data is more structured, a JTable and even a JTree if you want to group the data into some kind of groupable hierarchy.
You could use combinations of each, based on your needs
I am creating an application that converts files from xml to pptx. The user will drag items from a JTree to a JList to create the slide. I have managed to get everything working but the JList seems to disappear after the drop. I know the drop is received because of print statements, and that it's not null. The JList is still there I believe, because I can print the items in the array. Through testing, I think that something is wrong in the custom DefaultListModel I have created. It is not calling an update/redraw/revalidate after the drop for some reason, or has released its action listeners because I notice that the getSize and getElementAt methods stop getting called after the drop. It does however draw correctly if I add items to the ListModel on app init.
I've been looking through all the documentation on ListModels and TransferHandlers but have not been able to get the List to display after the drop. Is my model missing an Override or not handling listeners in some way?
Full source:
http://code.google.com/p/app4args/
Possible problematic file:
http://code.google.com/p/app4args/source/browse/trunk/src/edu/gatech/app4args/utils/CustomListModel.java
To recreate:
Download latest release/source & example xml file from downloads section of project site
Run app, choose File > Import, browse to example xml file
Create new slide: Slide > New Slide, choose Standard (any works)
Drag JTree item from Library to a List in Slide Content View
List does not update, clicking on it or elsewhere in the app and back on the list will make it disappear
Thanks
Turns out I was overriding methods in CustomListModel that were relevant to the updating of how to draw the content of a list. I removed these and reworked a few things and it is correctly drawing now.