I have some JLabels which are not in view on the JFrame. My JFrame has the dimensions: 1366x by 750y. I want to put a few JLabels that are below these dimensions, i.e. at position 800y. It will be a JLabel which has the size 100x by 50y.
I want to have the label already declared and customised from the swing class. But I want to only add it to a scroll panel when I press a button. That way, the scroll panel will not scroll until you press the button. This is how it will work:
Panel scroll panel which doesn't scroll
Button is clicked
The label is added to the scroll panel
The scroll panel can now scroll. It will scroll because it is set to ASNEEDED for the verticalscrollbarpolicy.
The problem I have is that I can't see the label when it is under the JFrame in the design view of eclipse. Here is a photo:
How can I do this? Please ask for clarification if required.
EDIT
Now If I clicked on some other component above the currently selected label, the eclipse workbench area would scroll up and I wouldn't be able to scroll down to it. To find this label, I would have to find it in the Component Structures list on the left side. I want to be able to scroll the actual workbench area and I want to be able to see the text in that label which is circled.
Related
I would like to change my current layout to a new one, more advanced, but I have some issues with it. The current layout is as this:
All the displayed elements are in a panel (bottom panel, there is a top one which just includes JTable but is not relevant in this case) the checkboxes are in a JScrollPaneBox, which border layout is
BorderLayout.CENTER, then the buttons are in a Box and added to the panel with border layout BorderLayout.EAST, and the search field is added to the panel with borderlayout BorderLayout.SOUTH
But this layout is especially 'ugly' when the app is on fullscreen.
I would like to have a layout like this: https://wireframe.cc/Kb05km
How can I add the two labels and add a space between checkboxes and search field? Also how can I limit the maximum width of checkboxes' ScrollPaneBox and the search field?
Thanks!
I have created scroll pane - everything is working fine, but noticed, that if I add JTextArea as view panel, and if I selecting text with mouse by dragging it outside visible view - my scroll pane do not change it's view position to make cursor/selected text visible. I think JTextArea uses some method to notify scroll pane to change view position in such case. How can I notify my custom scroll pane to change position?
I've got a vertically scrolling JPanel, on that JPanel are a couple of JScrollPanes, when the user scrolls down through the panel, if the users mouse goes over the JScrollPane they are no longer able to scroll the JPanel, the have to move their mouse off the JScrollPane and back onto the panel. It gets quite annoying after a while.
To this end is there any way to tell java to continue scrolling the parent JPanel unless the user clicks on the child JScrollPane and specifically tries to scroll it?
I believe what you're looking for is JScrollPane#setWheelScrollingEnabled(boolean handleWheel)
I want to display a JFrame ( made with the Netbeans GUI Editor ) that has an enclosed panel ( the panel encovers the entire JFrame ). The panel is twice as wide as the frame, so I want it so that when a button is pressed inside of the panel, the panel's visible area slides over ( over about 2 seconds) to the hidden area of the JPanel and the previously visible section of the JPanel becomes invisible. I couldn't find any function how to set the currently visible section of a JPanel, so the function and/or a different solution to this would be helpful.
I suggest that you put the JPanel in a JScrollPane, one that if you wish does not show its scrollbars. Then you could easily use the scrollpane's model and a Swing Timer to create an animation that shows the JPanel sliding.
The solutions is CardLayout based http://java-sl.com/tip_slider.html
You can add 2 (or more) panels into container and rotate them.
I have a screen in gwt where a portion of the screen has a scroll panel. There is a header bar at the top and the rest of the screen is in a scroll panel.
Problem is I can only get the scroll bars to appear if I set the absolute height of the scroll panel. The content in the scroll panel is bigger than the scroll panel but the scroll bars don't appear unless I specify the size of the scroll panel absolutely. The problem with this is it does not take into account the size of the browser window...
Thanks, this answer helped me gwt-layoutpanel-size.
Basically, the bottom line is that if you want the scroll panel to resize and maintain the scroll bars all your parent containers must implement RequiresResize so that the scroll panel can listen for the event and act accordingly.
Your flexibility is severely limited when requiring this behaviour as you can only put the scroll panel inside elements that implement RequiresResize/Provides Resize which are the *LayoutPanels...