listcellrenderer

问题 This is my code:- public class MyRender extends JPanel implements ListCellRenderer { ImageIcon on_img; JLabel name = new JLabel(); JLabel icn = new JLabel(); JLabel img = new JLabel(); public MyRender(Atalk) { setOpaque(true); setBackground(Color.WHITE); setForeground(Color.black); on_img = new ImageIcon(MyCls.class.getClassLoader().getResource("imgPath")); } @Override public Component getListCellRendererComponent(JList list, Object value, int index, boolean isSelected, boolean cellHasFocus)

问题 I'm writing a GUI using Swing. I have a custom written JComboBox using a ListCellRenderer and a BasicComboBoxEditor . In my getListCellRendererComponent() method I change the color of the the list based on whether the item is "selected" (mouse is hovering above), which is nice and all, but I don't want the selection to change background color once a choice is made, which it currently does. The first picture shows how the interface looks before a selection is made, and the second one shows how

问题 Hi I am having trouble with toggling a check box that is in a JList, I wish for when an item is clicked to have the check box tick, and if it is ticked again i want it to toggle to unticked. I want to have it possible to have multiple items to be ticked or unticked without the use of the ctrl or shift keys. public class CustCellRenderer extends JCheckBox implements ListCellRenderer { boolean selected = false; void CustCellRenderer() { setOpaque(true); setIconTextGap(12); } // allows a custom

问题 I have a list view of Labels and I want to color the list cells on run time. The problem is that I want to fill the entire Cell with the color not only the background of the Label. Is there way to do it in Java/CSS? 回答1: Understanding the dynamic nature of ListView cell coloring Normally, the inner cell color changes based upon a number of things: Whether the cell is an odd or even row (even rows have a lighter background). Whether the row is selected. Selected rows have different colors

问题 I am attempting to build a twitter client using Twitter4. I am storing the users tweets and info etc in a DefaultListModel in a Jlist. I want to add the users profile picture and to do this I am setting the Icon using a ListCellRenderer. My issue here is that I am only able to set the ListCellRenderer text and icon to one users information. I use a loop to pull down multiple tweets and add them to the model, but the renderer is only setting one tweet many times. This is the code to retrieve a

问题 I have a JProgressBar on a JPanel as a JList components.The JList components are supposed to update the JProgressBar in every two seconds.But the problem is, I don't know how to pass the value of progress into the JProgressBar. here is my code import java.awt.*; import java.awt.event.*; import javax.swing.*; class download { download(){} } class myPanelListCellRenderer extends DefaultListCellRenderer{ private static final long serialVersionUID = 1L; private JPanel downloadPanel,labelStack;

问题 Is it possible to do something like the following image in Java? I understand that I would need to be using a multi columned list, with a custom cell renderer, in order to show the images of each list element. But my question is regards to Grouping the list elements, and using group headers... As you can see from the image above this comes from windows explorer and is exactly the type of grouped list view that I would be looking to do with a JList in Java. 回答1: I don't think I would use a

问题 I'm trying to change the background color of a JList cell when it is being hovered over, but I'm not sure how to do it. Here is what I currently have: package cats.youtube.gui; import java.awt.BorderLayout; import java.awt.Color; import java.awt.Component; import java.awt.Rectangle; import java.awt.event.MouseEvent; import java.util.LinkedList; import javax.swing.AbstractListModel; import javax.swing.DefaultListCellRenderer; import javax.swing.JList; import javax.swing.JPanel; import javax

问题 Is it possible to apply a listcellrenderer to purely one cell in a jlist ? My code currently works fine in applying the renderer, but I would like to set a different dynamic variable for each entry. Apologies if this is a little vague.. So to sum up - I want to apply listcellrenderer to only one cell in a list, how would I do this? 回答1: Is it possible to apply a listcellrenderer to purely one cell in a jlist? No, all cells would have to share the same renderer. That's how renderers work. My

问题 I have a JList and inside that list, I want to change the color of the font of the following words. Someone said that I have to use CellRenderer but I'm not yet familiar with that. Now, my problem is how can I setup this renderer to change the color of the Font? Any idea about this matter? Thanks... 回答1: Check out the JavaDoc, it might just have what you need (the example at the top). Basically you just return a component (like a JLabel) with a configured font color. Edit: since you want to