JTable Not Scrolling With Scrollpane
Apr 20, 2015
I am making a table that is dynamically made but it isn't working with scroll bars. The scroll bars show but don't work. Here is the code:
JPanel pList = new JPanel();
Component pListl = new JLabel("Here you can view and search for players.");
pList.add(pListl);
tabbedPane.addTab("Player List",pList);
tabbedPane.setMnemonicAt(0,KeyEvent.VK_1);
[Code] ....
Yes I am spamming entries into the result object, this is so I can test the scrolling as right now I don't have enough data for overflowing entries but will do soon.
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Jan 15, 2014
I am having problems trying to get my jPanel to display my drawings properly after scrolling. (My drawings is done using by overriding the paint() method as the paintComponent() method does not work in my case.) My jPanel is component of my JScrollpane, and my JScrollpane is part of my jFrame.
The organization of components is: JFrame <-- JScrollPane <-- JPanel ( <-- means added to).
Situation: My drawings did appear when the frame becomes start, but when I start scrolling the scrollbar in any direction, it starts to eat up my drawing leaving only part of drawing which is not affected by scrolling.
I want my jpanel to display the drawing properly even after scrolling in both vertical and horizontal directions. I did use revalidate and repaint methods in my method for start of the JFrame.
Some Ways which I have tried:
1) I have tried adding this.revalidate() and this.repaint() method to the paint() method which did retains the image, but the jPanel keeps blinking on my screen which is trying attempt to update the drawing in a recursive manner.
2) I have tried panel.repaint() and panel.revalidate() in my paint() method, but it did not display my drawing.
3) I have read from other sources that I needed a listener to do it, but I am not sure how it works.
// Code Use for Listener
jScrollPane1.getViewport().addChangeListener(new ListenAdditionsScrolled());
public class ListenAdditionsScrolled implements ChangeListener {
public void stateChanged(ChangeEvent e) {
jPanel3.revalidate();
jPanel3.repaint();
}
}
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Jun 10, 2014
I using this code to fir FlowPane into ScrollPane
FlowPane flowPane = new FlowPane(Orientation.HORIZONTAL);
ScrollPane scroll = new ScrollPane();
scroll.setContent(flowPane);
scroll.viewportBoundsProperty().addListener(new ChangeListener<Bounds>() {
@Override
public void changed(ObservableValue<? extends Bounds> ov, Bounds oldBounds, Bounds bounds) {
flowPane.setPrefWidth(bounds.getWidth());
flowPane.setPrefHeight(bounds.getHeight());
}
});
Unfortunately this maybe is not the best solution. Is there another more simple way to fit FlowPane into ScrollPane in Java 8?
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Mar 11, 2014
I am trying to get a scrollPane working correctly, but not having any luck. The picture drawn in the center panel is quite large and goes off the screen. I visited URL... but I am missing something vital. Both tracks show, but there is no knob to do the scrolling.
public DViewer() {
super();
frame = new JFrame();
frame.setSize(Toolkit.getDefaultToolkit().getScreenSize());
frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
[code]....
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Apr 23, 2015
I'm trying to implement a scene with a ScrollPane in which the user can drag a node around and scale it dynamically. I have the dragging and scaling with the mouse wheel working as well as a reset zoom.
Here's my issue:
I'm having trouble with the calculations to fit the node to the width of the parent.
If I zoom in or out, the fit to width does not work.
If I change the window size after running fitWidth() once, the fit to width does not work the second time.
Here is my code as an SSCCE and how it works...
1. (works) Mouse wheel will zoom in and out around the mouse pointer
2. (works) Left or right mouse press to drag the rectangle around
3. (works) Left double-click to reset the zoom
4. (doesn't work) Right double-click to fit the width
My calculations to re-position the rectangle to the upper left of the pane and fit it (i.e. scale it up or down) to the width of the parent are incorrect.
import javafx.animation.KeyFrame;
import javafx.animation.KeyValue;
import javafx.animation.Timeline;
import javafx.application.Application;
import javafx.beans.property.DoubleProperty;
[Code] ....
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Nov 19, 2014
I want to create a ScrollPane where I can scale the contents. Think of a simple drawing program that allows you to zoom in and zoom out.
If I create a ScrollPane in SceneBuilder and then drop a couple of Circles into the AnchorPane all looks good.
If I then set a scale of 0.5 for the AnchorPane Scale X and Scale Y the AnchorPane gets scaled about its centre leaving space between the left and top edge of the AnchorPane and the left and top edge of the enclosing ScrollPane.
The only way to get the AnchorPane so that it aligns with the top left of the ScrollPane seems to be to add a negative amount to Translate X and Translate Y.
In my application I would like the user to be able to adjust the zoom (Scale) continually and also the size of the AnchorPane must be allowed to change as the user add/deletes/edits content.
Does this mean I have to continually monitor the AnchorPane properties and set compensating Translate X and Translate Y values each time? Or is there an easier way to achieve what I want?
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.paint.*?>
<?import javafx.scene.effect.*?>
<?import javafx.scene.*?>
<?import javafx.scene.shape.*?>
[Code] ....
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Jul 23, 2013
I am trying to add scrollbars to my frame containing many different components and appearing when user resizes the window with the mouse adds pictures and admin of this online application adds labels or other components.
I want scrollbars to appear when the frame is resized and has components you don't see under so you can scroll down.
If I have for example this code, how i add the scrollbars when i make frame smaller ?
public class Test extends JFrame {
private JPanel contentPane;
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
[Code] ....
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Oct 9, 2014
I've got a panel which an arbitrary number of text fields may be added to at run time. I've got it set up so that the window's height, and the height of the panel in which the fields appear will never exceed the height of the screen.What I don't have is a way to make the panel scroll to access the fields that are being visually truncated. I'm setting the autoscrolls on the panel to true, but when I run the program, the fields are simply truncated.
pnlDeclensions.setAutoscrolls(true);
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Mar 1, 2014
I am trying to create a JScrollPane with buttons in it, but I noticed that when I try to scroll, the items all move into ONE row at the top of the JScrollPane. How do I have them vertical? Is there something wrong with the way I am setting up the JScrollPane?
private static void addScrollPane() {
jScrollPane = new JScrollPane(new JPanel());
((JPanel)jScrollPane.getViewport().getView()).add(new JButton("First Button"));
[Code]....
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Nov 1, 2014
i am trying to make a platform game in java and to do this im trying to make a scrolling bacground. i can get the background image to scroll. However, i cant get the image to scroll forever, here is the code.
GamePanel class ( the jpanel )
public class GamePanel extends JPanel implements ActionListener{
static ArrayList<BackGround> store = new ArrayList<BackGround>();
public GamePanel(){
setFocusable(true);
Timer time = new Timer(5,this);
time.start();
store.add(new BackGround(0,-200));
the problem i have is that i want the bacground to loop. however, once the first instance of the background is done scrolling it freezes and doesnt load anymore. here is the code for adding a new background to the list
if(store.get(a).getX() <= -950 ){
GamePanel.store.get(a).setX(-900);
GamePanel.store.add(new BackGround(-951,-200));
}
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May 24, 2014
I have Implemented a user control / component that allows zooming in and out of a displayed BufferedImage, for discussion's sake, 3rd party libraries are excluded and everything must be from scratch.I have an image rendered on a JPanel, the JPanel is contained within a scrollbar.
Zooming inout etc works perfectly.The Scrollbars are rendered correctly on Zoom In and disappear when I zoom out.I want to add the functionality of focusing on a specific quarter of the displayed image via four dedicated buttons, each send an int (1-4) to a method, that controls the scrollbars.
public void zoomToQuarter(int i)
{
double width = (currentBufferedImage.getWidth()*2.2)+1;
double height = (currentBufferedImage.getHeight()*2.2)+1;
JScrollBar vertical = scrollPane.getVerticalScrollBar();
JScrollBar horizontal = scrollPane.getHorizontalScrollBar();
horizontal.setMaximum((int)width);
vertical.setMaximum((int)height);
[code]....
And resizes the image whilst scrolling the scrollbars accordingly,The method works as expected, and the scrollbars go to the desired location, But there's a catch:The first click on any of the above buttons does not work, but from the second click and on, everything works great!
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Jun 14, 2014
I would like to have one horizontal scrollbar control the scrolling of two JScrollPane objects (each of which contains a JTable with similar models). The line of code that I hoped would give me what I want is this:
spUpper.setHorizontalScrollBar(spLower.getHorizontalScrollBar());
It does exactly what I want, except that the scrollbar appears on-screen in the spUpper JScrollPane, while the spLower JScrollPane no longer displays a scrollbar at all. That's the opposite of what I expected. Apparently, spUpper's setHorizontalScrollBar is "stealing" spLower's scrollbar.
An alternative is just to have each scrollbar use the same model, like this:
spUpper.getHorizontalScrollBar().setModel(spLower.getHorizontalScrollBar().getModel());
This links the two scrollbars such that either will control both JScrollPanes (and also the other scrollbar), but it leaves them both visible, which is not what I want. I would have thought this line would make one of them invisible:
spUpper.getHorizontalScrollBar().setVisible(false);
However, it seems to have no effect.
The full code using the first approach is below. My questions are these:
Am I correct that setHorizontalScrollBar not only sets which JScrollBar will control a JScrollPane, but also determines where it appears on the screen?If so, what happens to the original JScrollBar? Is it replaced or am I drawing one on top of the other (or something else)?Why doesn't setVisible(false) make the scrollbar disappear (and how can I do that)?
package tandemtables;
public class Main extends javax.swing.JFrame
{
public Main()
[Code].....
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Mar 31, 2014
There is a problem in my 2D slide scrolling game where the character can't jump until he reaches the enemy.
The Boards class-
package OurGame;
import java.awt.*;
import java.awt.event.*;
import java.util.ArrayList;
import javax.swing.*;
public class Board extends JPanel implements ActionListener, Runnable {
[Code] .....
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Oct 31, 2014
I've created a chat program, but now I need to show messages in different colors depending if the message is received or sent. I was wondering if I can use jlabel to do this but in this case I need that jlabels to scroll in a jpanel. how to do this or maybe using a rtf ?
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Oct 5, 2014
So I can only get 1 tile to render Okay so now it's no tiles Nvm.
Window
import java.awt.BorderLayout;
import java.awt.HeadlessException;
import java.awt.image.BufferStrategy;
import javax.swing.JFrame;
[code]....
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Apr 6, 2014
I am currently making a platformer game which involves a scrolling panel and a sprite. My intention is for the sprite to be able to jump. My code for the frame that the scrolling panel sits on looks like this:
package Main;
import java.awt.Container;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
[Code] ....
Currently I have the sprite (jumpMan) displayed on the JumpPanel. This is where I have a key listener that intends to control the jumping of the sprite by incrementally moving the sprite through the space to simulate jumping slightly more accurately. The JumpPanel is laid on top of a panel called the GamePanel which sits between the main frame and the JumpPanel. I currently have a timer on the main frame which is firing off the action listener every 5ms.
My hope was that the action performed would repaint at intervals so that the you would be able to see the sprite at different stages of the jump and then as it descends as well. However when I try to make the sprite jump nothing happens, nothing changes on the screen - when I debug through I can see the code going into both the keyPressed and actionPerformed methods but this doesn't seem to do anything.
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Apr 7, 2015
what I want to be able to do is when the game is over a dialogue box pops up and asks if the user wants to play again and if the user clicks "Yes," then I want to restart the program. I have it to where it recalls my method to play the game which opens the program again, but it doesn't close the old window.
Is there a way to restart the program without the new window popping up? If not, how do I close the old window? Also, how to default the window to being maximized? It makes it easier to see the character and objects on the screen.
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Dec 15, 2013
I have datatable with live scrolling enabled.The columns are not getting sorted fully.When one of the columns is sorted,for example "insured" in the image shown below, all the records seem to have sorted but when i reach the end of scroll and next set of records get loaded i see other records in unsorted order as indicated in the image ,when i try to see the column in descending order.So because of this i am not getting the sorting feature accurately done(All records are not getting sorted at a single stretch)
My JSF code snippet
<p:dataTable id="workSpaceList" var="data"
value="#{workSpaceBean.lazylpId}" widgetVar="multiSelection"
selection="#{workSpaceBean.selectedRows}" resizableColumns="true"
liveScroll="true" scrollRows="15" scrollWidth="100%"
scrollHeight="75%" styleClass=".ui-datatable-hor-scroll"
[Code] ....
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Feb 7, 2014
I am trying to place a number of JLabel and JTextField objects inside a JPanel which has a JScrollPane.
One thing is, that at one time, I have have a certain number of JLabel and JTextField objects which number would cover an area greater than the JPanel's vertical size.
How when I implement the JScrollPane and I run the program, the scroll bars appear, but they don't scroll the pane inside the JPanel, the items are fixed.
Could the problem be because I am using a Null Layout.
Will I have to use one of the standard layouts available, like GridLayout for the JScrollPane scrolling function to work?
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Mar 19, 2015
Okay, gotta be able to move the image when a key is pressed. When I test it, the image moves, but leaves the old image behind.
package Game;
import java.awt.Component;
import javax.swing.JOptionPane;
public class Game
{
private Grid grid; //holds the grid used to store and display images
private int userRow; //keep track of which row the user-controlled image appears in
private int msElapsed; //keep track of the total amount of milliseconds that have elapsed since the start of the game
[Code] ....
Here is what I was given on instructions:
Complete the handleKeyPress method. Write the following line of code in the handleKeyPress method to check for a key press:
int key = grid.checkLastKeyPressed();
If the user pressed the up arrow (key == 38), move the user's image up one row (unless the user is already in the top row). Likewise, if the user pressed the down arrow (key == 40), move the user's image down one row (unless the user is already in the bottom row). Either way, make sure to update userRow.
Movement of the image can be accomplished by changing the value of userRow. Study how the initial image is displayed in the game constructor, then
Set the current image location to null
Update userRow to the new location and,
Set the image in the new value of userRow.
You should be able to move the user image up and down, and you should be prevented from moving the image off the screen.
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Apr 19, 2014
I have jFrame where I have to display data from database on button click. There are 4 buttons, first to display the first record in database, last to display the last record in database, next to display the next record and previous to display the previous record. I have done first and last record but what should I do to display the next and previous record.
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Feb 21, 2014
I have a primefaces datatable with about 52000 records to be fetched.Since it is a large dataset,i tried using live scrolling feature of primefaces with scroll rows equal to 20.THe number of columns is 53.The table also has filtering and sorting feature on its each column.Still i am not satisfied with the performance of the table.It takes about 15 secs for the page to load,worst thing is that it takes about 65 secs for the next set of 20 records to be loaded on reaching the end of scrolling.
Just for testing i reduced the total number of records to 25000 and the preformance improves with scroll time of 29 secs.I am really not able to understand why it is taking this much time when i am displaying only 20 records at a time.The total number of records should not have affected the performance.
My JSF code snippet
<p:dataTable id="arcRecList" var="data"
value="#{archivedRecordBean.archiveItems}"
tableStyle="table-layout:auto; width:80%;" styleClass="datatable"
scrollable="true" scrollWidth="84%" scrollHeight="69%"
columnClasses="columnwidth" liveScroll="true" scrollRows="20"
filteredValue="#{archivedRecordBean.filteredArchiveItems}">
[Code] ....
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Jul 25, 2014
i am developing a web application and uses jsp page to print a payment receipt.
everything works good, but printer scrolls complete sheet after printing first receipt. so need scroll back manually every time i print a receipt.
So, how to stop printer from scrolling entire sheet.
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Feb 7, 2014
I have a swing application that gets football scores from a website using Jsoup.
When the "Get Scores" button is pressed, the scores are printed to a JTextArea with a JScrollPane.
I have also used a SwingWorker to update the scores every couple of seconds.
My problem is that every time the JTextArea updates, the JScrollPane scrolls back to the top of the text area. I wan the scroll bar to stay where the user left it.
Here is my code (The update is currently set to update every 1 second so you can see what the scroll bar is like).
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.select.Elements;
public class frame extends JFrame {
[Code] ....
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May 26, 2014
I need to compare two jtable and set the value from one jtabel to the other jtable.
jtable one consist of:
Unit ID Unit Name Access
ABC, Inc ABC Incorporate (checkbox) value = uncheck
CDE, Inc CDE Incorporate (Checkbox) value = uncheck
jtable two consist of:
Unit ID Access
ABC, Inc ABC Incorporate (checkbox) value = checked
CDE, Inc CDE Incorporate (Checkbox) value = checked
if comparing jtable one an jtable two has the same Unit ID then colum Access from jtable two value is set to jtable one become check based on jtable two.I did the code but did not work:
for (i = 0, jTable1.getrowcount(), i++) {
for (j = 0, jTable1.getrowcount(), j++) {
if (jTable1.getvalueAt(i,0) == jTable2.getvalueat(j,0)) {
jTable1.setvalueat(true,i,2)
}
}
}
above code i try did not make any changes.
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Jun 5, 2014
i must get minimum value of 4th row in jTable and place it in textfield, but i can't do this
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